I N T E R N A T I O N A L LABOUR OFFICE SAFETY IN DOCK WORK ) MONTREAL, 1945 STUDIES AND REPORTS '' J Series F, Second Section (Safety), N o . 10 PUBLISHED BY THE INTERNATIONAL LABOUR O F F I C E , 3480 University Street, Montreal, 2, Canada Published in the United Kingdom for the INTERNATIONAL LABOUR OFFICE: by P. S. King & Staples Ltd., London Distributed in the United States by the INTERNATIONAL LABOUR OFFICE,. Washington Branch, 734 Jackson Place, Washington, 6, D.C PREFACE To give effect to a Recommendation adopted by the Second Inter-Governmental Conference on Reciprocal Arrangements respecting Safety in the Loading and Unloading of Ships, held in London in July 1935, the International Labour Office decided, in 1937, to publish a monograph on Safety in Dock Work. After consultation with the members of the Correspondence Committee on Accident Prevention, the Office appointed Mr. C. MÖRZER BRUYNS, Chief Port Labour Inspector of Rotterdam, as "rapporteur" to prepare a first draft of the technical part of the monograph. Mr. Mörzer Bruyns went to work with such zeal and alacrity that the preliminary text of Part I was completed and submitted to the I.L.O. in exactly three months. In conformity with the established practice, the next steps should be revision of the draft by the I.L.O., translation into French, and submission to the Correspondence Committee on Accident Prevention for discussion, final drafting and adoption. The revision and translation of the text proved- to be a difficult. task, and when the draft was finally ready for discussion, further progress proved to be impossible, for financial and other reasons. Then the war broke out and the monograph had to be put aside. However, the International Labour Office gradually resumed its activities after the transfer of its working centre from Geneva to Montreal in September 1940 and the preparation of Mr. Mörzer Bruyns' text for publication was one of the first tasks to be taken in hand again. In the summer of 1942 the draft was distributed to all the members of the Correspondence Committee whom the Office could reach, and it was subsequent y discussed at a meeting of the Canadian and United States members of the Committee,. held in New York in December of that year. The Committee suggested certain small changes in the draft, and unanimously expressed the wish that: "in view of the very considerable value of the material it contains, this monograph should be issued by the International Labour Office as quickly as it can be prepared for publication". ii SAFETY IN DOCK WORK Although the Office fully recognised the desirability of having the monograph published at the earliest possible date, it was considered essential to obtain the views of at least some of the European members of the Committee; owing to difficulties of communication, however, this was bound to cause considerable delay in publication. The International Labour Office is greatly indebted to Mr. Mörzer Bruyns for his excellent preparatory work; it regrets that events since the spring of 1940 have compelled it to complete the monograph without benefiting further from his great experience in all matters concerning dock work, and hopes to count him among its external collaborators in this field in the future. The Office also wishes to express sincere thanks to the members of the Correspondence Committee who assisted in the revision of the monog r a p h , and particularly to Mr. G. STEVENSON TAYLOR, London, Mr. Cyril AINSWORTH, New York, Mr. Swen KJAER, Washington, D.C., and Mr. R. B. MORLEY, Toronto, who submitted valuable material for inclusion in the text. CONTENTS Page PREFACE i PART I S A F E T Y I N DOCK WORK INTRODUCTION 1 CHAPTER I: § § § § General Measures of Protection for Hoisting and Transport Machinery Used in Loading and Unloading Ships 1. Fencing of Dangerous Parts 2. Safe Means of Access 3. Protection against Accidental Descent of Loads 4. • Safety Factors CHAPTER I I : Hoisting Machines and Gear on Board CHAPTER I I I : Cranes, etc., Ashore and on Pontoons and Lighters CHAPTER IV: Strength of Slings. Influence of the Angle between the Legs of a Sling on the Actual Tension in the Legs 3 3 4 4 4 6 20 25 CHAPTER V: Masls and Derricks § 1. Masts § 2. Derricks 32 32 34 CHAPTER V I : Derrick Spans 37 C H A P T E R VII : Blocks 43 CHAPTER V I I I : Chains, Rings, Hooks, Shackles, Swivels, etc 54 The Influence of Quality, Lay, Splices and Number of Strands on the Strength of Manilla and Steel Wire Ropes. . § 1. General Remarks § 2. Manilla Ropes (a) Material (b) Nominal Dimensions and Method of Measuring (c) Method of Measuring the Breaking Strength of the R o p e . . . . (d) Breaking Length § 3. Steel and Iron Wire Ropes 60 60 60 60 62 63 63 63 CHAPTER I X : CHAPTER V X : Testing and Examination of Lifting before Being Taken into Use Machines and Gear Means of Access to Hold, from Shore to Ship, from Railing to Deck, and to Ships not Lying Alongside a Quay or Another Ship § 1. Means of Access to Hold § 2. Means of Access from Shore to Ship and from Railing to Deck. . . § 3. Means of Access to Ships not Lying Alongside a Quay 66 CHAPTER X I : 69 69 73 77 iv SAFETY IN DOCK WORK Page CHAPTER X I I : § § § § § § 1. 2. 3. 4. 5. 6. Hatches, Beams General Remarks Hatches Hatchways.. ; Hatch Coverings Coamings Beams Hatchways, Hatch Coverings, Coamings and 79 79 79 80 80 83 85 • : CHAPTER X I I I : Loading and Unloading of Goods Transported in Bulk, and of General Cargo § 1. Bulk Cargo § 2. General Cargo (a) Machinery and Gear Belonging to the Ships (b) Shore and Floating General Cargo Cranes (c) Miscellaneous Appliances for Loading and Unloading 87 87 87 88 89 90 CHAPTER X I V : Inspection and Supervision § 1. Inspection § 2. Supervision 97 97 99 CHAPTER X V : § § § § § 1. 2. 3. 4. 5. Diseases, Toxic and Other Harmful Dock Workers Are Exposed General Remarks Diseases Toxic Substances Suffocation and Burns T h e Carrying of Heavy Weights CHAPTER X V I : Substances to Which Psychotechnical Aptitude Tests ' 100 100 100 101 107 107 108 PART II LEGISLATION CONCERNING DOCK WORK Introductory Note INTERNATIONAL Ill 112 AUSTRALIA 125 CHILE GERMANY 142 145 GREAT BRITAIN 154 PORTUGAL 168 SWEDEN 176 UNITED STATES OF AMERICA 195 Bibliography 222 PART I Safety in Dock Work INTRODUCTION The scope of dock labour is so wide that it is impossible to deal in a monograph of reasonable length with all the risks to which dock workers may be exposed, and not much more than a superficial account of some of the safety problems of stevedoring can be attempted here. These risks may arise from different causes and can be classified according to the place of work as follows: I. On board sea-going and inland waterway vessels. (a) Means of access to the hold and communication in the hold ; (b) Hatches and hatch coverings; (c) Lifting machinery, including masts, derricks, standing and running rigging; (d) Equipment used for loading and discharging; (e) Methods of loading, discharging, stacking and unstacking, stowing and unstowing, etc.; (/) Electricity, e.g. lighting on deck and in the holds, and electrical hoisting machines. Some of these subjects are large enough for separate monographs. Another monograph could be written on the dangers to which dock workers are exposed when handling 1 : 1. Explosives; 2. Compressed, liquefied and dissolved gases; 3. Substances which become dangerous by reaction with water or air (e.g. ferrosilicon, calcium carbide); 4. Substances giving off flammable vapours, which, moreover, are in many cases poisonous; 5. Corrosive substances (e.g. caustic potash and soda, acids); 6. Poisonous substances (e.g. ammonia, ethyl fluid) ; 7. Substances liable to spontaneous combustion (e.g. celluloid, copra, films, matches, sulphur, cotton). One of the most difficult problems is constituted by the dust given off during the processes, e.g. when loading and unloading 1 The list follows the classification adopted in the Report (issued in 1933) of the Departmental Committee appointed by the British Board of Trade to consider the existing Board of Trade Memorandum on the "Carriage of Dangerous Goods and Explosives in Ships". 2 SAFETY IN DOCK WORK fertilisers such as ground basic slag, or various ores, or pitch. In this connection the spores of the anthrax-bacillus may be mentioned as a serious danger; and as a lesser danger, acroleine evaporated from whale oil. II. Floating cranes, grain elevators, bunkering appliances, shear legs, etc. The dangers menacing the workers here are sometimes of another nature than those mentioned under I, but it does not seem necessary to give a separate account of them. III. Docks, wharves, quays and sheds, including all lifting machinery and transport appliances ashore. A valuable paper could be written on the safety problems ashore, •e.g. fencing of approaches over docks, wharves or quays, rescue from drowning, measures against fire, first aid, protection against lightning, prevention of accidents caused by wagons and trucks, or occurring in and on sheds, etc. IV. Means of access to or from the vessel or other workplaces. These include accommodation ladders, gangways, wooden and rope ladders, and tugs and other boats used for the transport of dockers by water. At all events, many shipbuilding details have to be taken into account, and an efficient inspection service must supervise enforcement of the regulations and calculate the stresses in the loading and unloading equipment. A treatise on safety and welfare generally, including the influence of mechanisation, night work, the length of working hours, meteorological circumstances, occupational skill, etc., would be a valuable contribution to the subject now under consideration. Considerations of space, however, have made it necessary to restrict the scope of the monograph to the more important problems of a purely technical character and only a short chapter has been added on the various diseases and dangerous substances to which the docker is exposed, and which sometimes cost him his life. Some examples of national regulations for the prevention of • accidents in dock work, together with international regulations, will be found in Part II. It is hoped that the present monograph, notwithstanding its limitations, will serve a useful purpose and will help to bring about a wider study of the manifold problems of safety in dock work. CHAPTER I GENERAL MEASURES OF PROTECTION FOR HOISTING AND TRANSPORT MACHINERY USED IN LOADING AND UNLOADING SHIPS § 1—Fencing of Dangerous Parts Although most of the machinery and equipment used in the loading and unloading of ships is of a special type, different from that used in industry generally, there are certain general rules of protection which are applicable in both cases. Thus, as with industrial machinery in general, hoisting and transporting appliances used on board ship and in docks, e.g. winches, derricks, cranes, conveyors and transporters, must be provided with proper fencing or other adequate protection at all points where there is a risk of injury to the men in charge of machinery or to other persons employed in loading or unloading. All dangerous machine parts, such as cog-wheels, chain or friction drives, gears, shafting, etc., should either be completely enclosed or otherwise adequately protected to prevent any person from coming into accidental contact with them. The guards must not be removed while the machine or apparatus is in use; if they have to be removed they must be replaced as soon as possible, and in any case before the machines or apparatus are again taken into normal service. As a general rule, it can be said that the types of enclosures or guards ordinarily used in industry for similar purposes afford sufficient protection for the installations that we are dealing with here. On steam-driven winches and other machinery the steam pipes and all other steam-carrying or steam-heated parts must be adequately insulated or otherwise enclosed, so as to prevent burns. Where electrically driven winches or other appliances are used, care must be taken that all live electric conductors and other current-carrying parts are protected in conformity with the special regulations concerning electrical installations. 4 SAFETY IN DOCK WORK § 2—Safe Means of Access Safe means of access should be provided for all drivers' platforms on cranes and other hoisting or transporting appliances, and all such platforms and all other places on which crane operators, winch drivers or other persons have to work, or over which they have to pass in the course of their work, should be provided with adequate railings so as to prevent persons from falling. § 3—Protection against Accidental Descent of Loads All cranes, winches and other lifting machines should be provided with efficient brakes and with any other safety devices required to prevent accidental descent of suspended loads. This general rule is of even greater importance in loading and unloading operations in docks than at many other workplaces where hoisting operations are being carried out. Brakes and other devices installed for this purpose should be of sound construction and of sufficient strength to hold safely the heaviest load permissible for the crane or winch to which they belong. All such devices should be kept in good working order and properly examined and tested at regular intervals. § 4—Safety Factors Since in many of the following chapters strength of materials will be discussed, it may be useful to include here an enumeration of safety factors for hoisting equipment. In connection with the adoption of the (revised) Convention (No. 32) concerning the protection against accidents of workers employed in loading or unloading ships (see Part II), the International Labour Conference, at its 1932 Session, also adopted a Recommendation requesting the Governments of the principal countries concerned t o make arrangements with a view to securing reasonable uniformity in the application of the Convention. In pursuance of this provision, meetings of representatives of a number of maritime countries were held in London in 1932 and 1935. The matter of safety factors was among those dealt with by these meetings. The meeting in 1935 unanimously adopted a recommendation on this subject, as follows1: Safely Factors. In view of the importance of the provision by manufacturers of adequate safety factors in their designs of hoisting machines and gear, manufacturers 'The final conclusions of this meeting were published, in extenso, in Industrial Safety Survey, Vol. XII, No. 2, Mar.-Apr. 1936, pp. 42-45. 5 GENERAL MEASURES OF PROTECTION should be given some guidance in this matter. For this purpose the adoption of the following minimum safety factors is proposed without prejudice to account being taken of the provisions and measures recommended by National Standards Associations: For all metal structural parts used in hoisting machinery: (a) when the safe working load is 10 tons or less (6) when the safe working load is over 10 tons For For For For wooden structural details chains wire ropes as a general rule fibre ropes '. 5 4 8 4K S 7 It must be borne in mind that these figures are given as minima, each country wishing to fix higher factors being authorised to do so. CHAPTER II HOISTING MACHINES AND GEAR ON BOARD Article 9 of the Convention (No. 32) concerning the protection against accidents of workers employed in loading or unloading ships (revised 1932)1 begins with the general provision that: Appropriate measures shall be prescribed to ensure that no hoisting machine, or gear, whether fixed or loose, used in connection therewith, is employed in t h e processes on shore or on board unless it is in a safe working condition. Everyone who has to judge the safe working condition of some part or other of ship's gear has naturally to be acquainted with the stresses acting in that part when loading or unloading, even if appropriate safety regulations exist. It is not sufficient to accept the safe working load indicated by someone who considers himself competent, or to be satisfied with a safe working load found in a certificate: the responsible person should be able to verify the figures, either by calculating the stresses directly or by using the graphical method. Such a procedure has proved to be necessary wherever a serious examination has been made. The unreliability of many so-called safe loads may be illustrated by the following table, relating to 12& ships in the port of Rotterdam. Of course this table only mentions cases that happened to be noticed during inspections; it should by no means be assumed that it gives a list of all wrongly indicated safe working loads. The 128 ships in question were of 13 different nationalities. Several vessels referred to in this table were in thé possession of certificates, issued by competent persons, to the effect that the derricks could be used up to the weight'marked upon them. In no less than 26 cases these certificates proved to be of no value ; the safe working loads had to be reduced considerably, and in some cases permission could not be given to use the gear at all. It is thus evident that certificates often cannot be relied upon,, and hence it is not sufficient for the supervising persons to read the certificates; serious investigation and verification of the safe load are necessary. 1 The text of this Convention is given in Part I l o f t h e present report (p. 112). HOISTING GEAR ON BOARD TABLE {Period from Number of ships 2 7 8 14 3 10 1 49 3 11 4 1 10 3 2 Maximum load marked on derrick (metric tons) 1.5 2 2.5 3 3.5 4 4.5 5 6 7 8 9 10 12 13 1 January 7 I 1934 to 1 January 1937) Maximum loads allowable in view of the dimensions and position of the apparatus 0.75, 1. — * , 0.8, 0.8, 0.9, 1.4, 1.4, 1.6. —*•*, 0.8, 0.8, 1.2, 1.4, 1.5, 1.5, 1.6. 1.5, 1.5, 1.5, 1.6, 2, 2, 2, 2, 2, 2.1, 2.5, 2.5, 2.6, 2.7. 1.8, 2.5, 3. 1.3, 2, 2, 2.5, 2.5, 2.5, 3, 3, 3, 3.1. 1. — * * * , 1.3, 1.3, 2, 2, 2.5, 2.5, 2.5, 2.5, 2.5, 2.5, 2.5, 3, 3, 3, 3, 3, 3, 3, 3.1, 3.3, 3.5, 3.5, 3.5, 3.5, 3.9, 3.9, 3.9, 3.9; 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4.2, 4.2. 3.2, 4, 5. 3, 3, 3.9, 4, 4, 4.5, 4.5, 5, 5, 5, 5.3. 5.3, 6, 6, 6. 6.5. 3, 3, 3.5, 3.9, 4, 5, 5, 6, 6.5, 7. 4, 5.1, 7. 5, .5. 128 * Derrick split: working not allowed. ** Derrick rotten: working not allowed. *** Mast broke when hoisting a load of 900 kg. As a matter of fact, the scientific training of the persons who have to judge the safe loads in the light of the approved safety factors should be sufficient to enable them to carry out these duties. Even persons considered to be competent often misjudge the stresses in the gear, if they have to base their judgment on what they observe and have no occasion, or do not know how, to calculate them. A faulty estimate of these stresses is most likely if the derrick is much longer than the mast; examples of such cases are given in figs. 1 and 2. This is not the place for a detailed discussion of stresses, b u t a few general remarks may be useful. Given the safety factors, the dimensions of the different parts of the gear can be fixed when t h e stresses are known. Calculation of the stresses in the gear, however, is a very difficult task, which should be performed by naval architects, standardisation committees, classification bureaux and the like. For practical use tables have been compiled that greatly facilitate verification. The most elaborate of these tables are to be found in the Vorschriften über Lade- und Lösch-Einrichtungen of the German See-Berufsgenossenschaft, in the Grundsätze für die Prü- S A F E T Y I N DOCK W O R K I :h=4 Fig. 1 I: h = 1.5 Fig. 2 9 HOISTING GEAR ON BOARD jung von Ladegeschirr u.s.w. of the Germanischer Lloyd, and in the Report of the Netherlands Committee for Loading and Unloading Gear, etc. As compared with calculation, however, the graphical method enables the stresses to be computed with relative ease. Below are some simple examples of this method for running rigging, showing how greatly the stresses vary according to the construction of the gear and the angle of the derrick to the horizontal. I :h = l Fig. 3 Fig. 4 676^ .©. 3 t. Fig. 5 10 SAFETY IN DOCK WORK In the first series (figs. 3, 4, 5) three derricks of different lengths are fastened to the same mast at an angle of 30° and the same load is applied. The stresses in the single span wire rise from 3,000 to 6,264 kg, and the stress on the span block and on the fastening point of this block to the mast, from 5,200 to 8,440 kg. / :h = 1 I : h = 1.7 Fig. 6 Fig. 7 :h=2A Fig. 8 In the second series (figs. 6, 7, 8) the angle is 15°. With a 3-ton load, the stress in the single span wire rises from 3,904 to 7,500 kg and on the span block, from 7,000 to 11,146 kg. Here the weight of the derrick with cargo block etc. (estimated at 40O kg) is taken into account; this should also have been done in the first series, but was omitted in order to bring out the theoretical stresses induced by the load. 11 HOISTING GEAR ON BOARD In the third series (figs. 9, 10, 11) the stresses are given for 3 methods of hoisting with the same derrick at the same angle. Fig. 9 Fig. 10 Fig. 11 It is worth mentioning that in most cases the stresses in the span wire, span blocks and fastening points are influenced only by the weight of the load ; the rig or method of hoisting, e.g. by single or double gear or by fastening the upper end of the runner to the cargo block or to the derrick, etc., will have an influence on these stresses only when the cargo runner is taken parallel to the span wire. However, the stresses in cargo runner, derrick-head cargo block; derrick-heel lead block and fastenings depend to a large extent on the manner of hoisting. In principle, the influence of the weight of the derrick, cargo block, etc., should not be neglected and usually half this weight is taken into account. It can be considerable for heavy gear {e.g. the weight of a derrick pole with cargo and guy blocks and steel wire f o r a 50 top derrick may amount to 6,000 kg). Moreover the fric- 12 SAFETY IN DOCK WORK tion of the sheaves in the blocks has to be considered, and this is generally estimated at 5 per cent, of the load per sheave. With multiple-sheave blocks especially, the friction can be very considerable, and safety may be seriously endangered if no special attention is paid to it. In this connection it may be useful to draw attention to the fact that in the case of a derrick rigged with the cargo runner parallel to the span, the greatest pull developed in the span wire during hoisting or lowering occurs, due to frictional forces developed in the runner blocks, during lowering. This may be illustrated by the following example : A load of 50 t is being steadily raised and lowered by a set of blocks, having twelve parts of rope, connected to a boom having the derrick ratio of 1. The cargo runner is taken parallel to the span. When the derrick is at 45° to the horizontal, the tension in the span rope due t o the static weight of 50 t is 38.5't. In this case, the pull in the span rope can be calculated as follows: (1) assuming no friction, and (2) assuming a friction of 5 per cent, per sheave. (1) Assuming no friction. rn f Pull in cargo runner (hoisting or lowering) =—rr— = 4.2 t. Hence, since the cargo runner is parallel to the span wire and therefore relieves the pull in the latter, the pull in the span rope (hoisting or lowering) = 38.5 t — 4.2 t = 34.3 t. (2) Assuming 5 per cent, friction per sheave. Pull in cargo runner during hoisting = 6.5 t Pull on span wire = 38.5 t — 6.5 t = 32 t Pull in cargo runner during lowering = 3 t < Pull on span wire = 38.5 t — 3 t = 35.5 t Hence the pull in the span wire is approximately 10 per cent, greater when lowering the load than when raising it. TABLE II W :B L : B 0.15 0.30 0.40 0.75 9,540 5,540 4,740 1.0 11,780 6,750 5,700 • 1.5 16,580 9,390 7,840 2.0 21,530 12,150 10,080 13 HOISTING GBAR ON BOARD The subject of blocks is dealt with in more detail in Chapter VII. To give an idea of the very intricate problem of the stresses in standing rigging it may be useful here to give an extract from the abovementioned Report of the Netherlands Committee for Loading and Unloading Gear, etc. (figs. 12,13). Let: KW>KW>¡ I / B Hh — component of stress in span, perpendicular to mast. = thwartship distance of chainB plates in m. L = length of mast in m, measured from the deck to the fastening points of rigging and stay or span (largest distance to be taken). distance in m from chainW plates of main ropes to thwartship plane through mast, perpendiculartoalongshipsplane. Figs. 12-13 Table II, on page 12, shows, for Hh = 3 tons, the stresses in kg for a mast only supported by main ropes fastened at a moderate distance one from another. The influence of W, L and B is evident. The situation will of course change fundamentally when stays are used, but the table gives a good idea of the stresses to which main ropes are exposed. Moreover, it is a serious warning against working with loosened main ropes and stays, which is done rather frequently, and has been the cause of several casualties. In this connection it is worth mentioning that during the years 1932-1936 the Netherlands Port Inspectorate noticed 23 cases in which a mast collapsed. This number, of course, only covers the cases known to the writer ; the causes are shown in the following table : TABLE III 1 Period 1 J a n u a r y 1932 to 31 December 1936 Number of derricks collapsed 23 Cause Defective equipment 14 Faulty handling 9 14 SAFETY IN DOCK WORK Naturally, very many other problems have to be solved, e.g., the resistance of masts and derricks to crushing stresses, and the safe working load of wires, rigging screws and fastening points. Generally speaking, standardisation committees, classification bureaux and manufacturers are now giving very useful indications on these points. Lloyds Register Rules, for instance, require the scantlings of the masts to be in accordance with table 47 of these Rules and these scantlings are considered suitable for the support of average equipment of derricks of normal outreach, provided that the staying of the masts is efficient. Shrouds and stays are required to conform, in number and size, to the specifications in tables 48 to 57 of the Rules. It is not very easy to devise a method for the calculation of the stresses in the guys, which are generally determined by practical means. The stresses may become very high, especially when working with fixed derricks and coupled runners (with inner and outer tackle). 1 For this method special regulations have been issued in some countries. The Vorschriften über Lade- und Lösch-Einrichtungen auf deutschen Seeschiffen issued by the See-Berufsgenossenschaft in 1935 contain the following regulation: §65 3. T h e use or two ñxed derricks with runners shackled together for loading and unloading is only allowed when the eyes on the outer guys of the derricks, and the outer guys themselves are strong enough. and the Netherlands Committee for Loading and Unloading Gear on Board Sea-going Ships stated in their report of 1932 (Part I), section 20: When cargo gear not especially constructed for this purpose is used for loading or unloading with inner and outer tackle, the load shall not exceed i of the load on which are based calculations of the relevant part of the gear assuming normal use with slewing derricks. The guys shall have a t least the actual breaking strength mentioned below. Care shall be t a k e n that, for cargo gear, constructed for loading or unloading with inner and outer tackle, and for which sufficient directions for the fitting up and the fixing of the guys are carried on board, the stresses in the derricks and spans do not exceed the maximum values for the most unfavourable working position of the derricks. No guy shall be subjected to a heavier load than two sevenths of the actual breaking strength. 1 In Great Britain, this arrangement is generally known as the "Union Purchase" rig. HOISTING GEAR ON BOARD 15 This mode of working is only allowed for single rope and for loads of 2 tons c or less. Moreover, when determining the length of the derricks consideration must be given to the capacity of the winches, the height of the bulwarks, and any other factors that may influence the stresses in the gear, and the dimensions and the weight of the loads to be worked. TABLE IV. GUYS FOR SLEWING DERRICKS Maximum load to be hoisted with the derrick (in tons of 1,000 kg) Actual breaking strength of the guy (in tons of 1,000 kg) 1 2 3 4 4 6 8 10 12 13 17 22 27 33 37 40 3 6 10 15 20 30 40 50 As may be inferred from various publications it is generally accepted that when working with heavy loads the safety factor may be lower than when working with light loads. This is quite reasonable because, when a heavy load is to be hoisted, everything is especially examined beforehand, the work is executed very carefully and all shocks are avoided; the higher officers of the ship and of the stevedoring company are present. All these measures are not taken and cannot be taken during ordinary work. In addition, the loose gear for heavy derricks is generally stowed away and mounted when necessary. It is used only on a few occasions during its lifetime, so that practically no wear and tear is caused. Moreover, it is almost impossible from a practical point of view to supply a ship that is fitted out with gear for heavy loads, with stays, etc., calculated for the highest safety factor, since these parts of the gear would become too clumsy, and in the light of the above considerations it does not seem necessary to give this gear the same relative strength as the ordinary gear, which is used under quite different circumstances. Profound ignorance reigns all over the world as to the stresses in running and standing rigging; this has led to many accidents, and it therefore seems necessary to give more instruction in the subject. Experience has shown that visual demonstration is of great value. This can easily be done by means of an apparatus consist- 16 SAKBTY IN DOCK WORK Fig. 14 Fig. 15 HOISTING GEAR ON BOARD 17 ing of complete loading and unloading gear of small dimensions, and allowing the stresses on each part to be read on small spring balances. An illustration of such an apparatus is reproduced in fig. 14. By this means, not only officers and cadets of the mercantile marine, but also persons in charge of stevedoring operations may learn much about this difficult subject, the importance of which up till now has not been properly appreciated by those concerned . It must also be remembered that, on vessels, theplatformon which the hoisting machinery is built is not stable. This is not of much importance when general cargo is loaded or unloaded on large ships, unless the ship already has a list. Smaller ships may easily list over if the load is off the centre line, and with heavy loads the inclination may become very considerable, varying to a large extent with the stability of the ship. The photograph in fig. 15 was taken when a lighter of 195 tons was hoisted on board by means of the ship's gear; the angle with the horizontal rose to about 14°. Constructors as well as users of gear must not overlook the possibility of inclination. Interest in rigging stresses has increased lately and in Great Britain for instance, two instruments have been constructed which enable the stresses to be read without calculation. Another cause of accidents, which may usefully be discussed at this point, is that due to the closing up of a derrick on which the cargo runner is rigged parallel, or nearly so, to the span wire. The derrick, with its load, suddenly swings vertically towards the mast supporting it. Simply, this matter may be considered as follows: SPAN VHRE CARGO RUNNER If a weight Wbn suspended from the framework ABC (fig. 16) the load on t h e s p a n w i r e is W .JUL. When, M W '4S* Fig. 16 AC therefore, AB=AC, the load on the span rope, or, if multisheave blocks are used, the total pull in the part of the rope in the span, 18 SAFETY IN DOCK WORK equals the weight lifted. Now,-if in such a case the cargo runner is parallel to the span wire, it is clear that the derrick would be on the point of closing up if there is only one part of rope in the runner. It will be seen, therefore, that in the case of a derrick in CB which the derrick ratio . r is approximately 1.4 (fig. 16) the derrick is on the point of closing up when at an angle of 45° to the horizontal, if the cargo runner (one part of rope) is taken parallel to the span rope and would close up at all angles over 45°. The following example illustrates a handy method of readily ascertaining the critical angle at which a derrick is on the point of closing up. Fig. 17 ABC (fig. 17) represents a derrick having a derrick ratio of 1.1. The cargo runner, rigged parallel to the span, consists of four parts of rope. To find the critical angle to the horizontal at which the derrick will be on the point of closing up, draw de vertically to represent the load W. Set off ef parallel to BA and since there are four parts of rope in the runner, make ef equal to one quarter of de_ HOISTING GEAR ON BOARD 19 Join fd and draw/g a t right angles to de. Then, the angle <¡>, which measures approximately 77°, is the critical angle and it follows that at any greater angle to the horizontal than this the derrick will close up. Using the same method it may be shown that for a derrick having a ratio of 1.4 and two parts in the runner, the critical angle is about 76° and that in the case of a derrick with a ratio of 0.8 the critical angle with one part of rope in the runner is approximately 24°, and with two parts, 60°. In short, it may be demonstrated that the smaller the derrick ratio and the smaller the number of ropes, the greater is the risk of the derrick collapsing when the runner is rigged parallel to the span. To prevent such an occurrence, the rig should be such as to give an ample margin of safety, especially as the effect of friction in the blocks is to increase the pull in the runner and therefore lessen the angle to the horizontal at which the derrick will close up when in use. In addition to the precautions against closing up, measures must also be taken to prevent derricks from being accidentally lifted out of their sockets or supports. Occurrences of this kind may lead to very serious accidents and every derrick should therefore have its foot adequately secured, so that it can only be lifted out of the supports when this is necessary for the examination, repair or replacement of the derrick. CHAPTER III CRANES, ETC., ASHORE AND ON PONTOONS AND LIGHTERS For these hoisting machines the same general rules are applicable as for those in Chapter II. Hence in the countries ratifying the Convention (No. 32) concerning the protection against accidents of workers employed in loading or unloading ships (revised 1932)', appropriate measures must be prescribed for these machines also, in order to ensure a safe working condition. Generally speaking, great differences exist between hoisting machines on ships and those ashore (floating cranes, etc., included) 1 , so that very little of what has been said in Chapter II is applicable to the latter. These two kinds of hoisting machines are built by different manufacturers and almost the only common characteristic is that both types hoist and lower goods. Moreover, the constructor of a floating crane has to solve several problems that do not enter into consideration for cranes ashore, because a pontoon or a lighter does not form a stable platform but tilts and swings under the movement of the load. The national regulations on lifting machinery are as a rule of a very general character: (1) Section 18 of the British Docks Regulations, 1934, contains the following provision: All lifting machinery shall have been tested and examined by a competent person in the manner set out in the schedule to these Regulations before being taken into use. This requirement is followed by detailed rules but nothing is said about the construction itself. (2) The German Unfallverhüiungsvorschriften der Grosshandelsund Lagerei-Berufsgenossenschaft, Ausgabe 1933, give the following regulations in Chapter V I I : §11. Cranes shall be built in accordance with the accepted technical rules. §13. The material, construction and calculation of the bearing parts shall be in accordance with the accepted technical rules. 1 See below, p. 112. STRESSES IN CRANES 21 More details follow, but these are not closely concerned with the construction itself. (3) In the Netherlands the present Stevedoring Safety Decree prescribes in Section 7 that at places where stevedoring operations are carried on, cranes, etc., shall be in good condition. Then come some detailed regulations including Section 16, which requires that, if necessary and possible, tests shall be made and repeated periodically. Similar regulations may be found in other countries, but it is evident that nowhere are there specific official regulations as to design and construction. In a few countries the rules of semiofficial institutions are applied. Before going into these rules it will be convenient to classify the machines concerned, as follows: (a) (b) (c) (d) (e) (/) cranes; bridge cranes; coal tips; grain elevators; bunker appliances; shear legs. The dock appliances named under (a), (&), (d), (e), and (/) are found ashore as well as mounted on pontoons, while coal tips are naturally built on the quay. Fig. 18 22 SAFETY IN DOCK WORK In order to give an idea of the complexity of the problem here, illustrations are given of shear legs (fig. 18) and a floating bridge crane with the arm moving horizontally (fig. 19). Fig. 19 Modern machines ashore are as a rule driven by electricity, but floating appliances are generally driven by steam; hydraulic and hand-operated machines, though still in use, are obsolescent. The safe working load of the machines amounts to from one ton or less to several hundred tons. An idea of the enormous masses of material that may be needed for crane construction may be gained from the following particulars of a 30-ton (grab with contents) bridge crane, used as a transporter for ore and coal: Weight of permanent bridge " " arms " portals ' " " mechanical parts " " electrical parts " " travelling cabin (without grab) Total 852 152 268 250 65 150 tons tons tons tons tons tons 1,737 tons the whole mounted on 48 wheels. In view of the very difficult problems to be solved it is evident that the calculations of the working stresses in crane structures must be left to the constructor, who, however, should take general safety rules into consideration. STRESSES IN CRANES 23 Probably in consequence of crane accidents, in some countries semi-official institutions have taken the initiative in framing more detailed regulations and it seems useful to reproduce here some of their requirements. The British, (B.S.I.) and the German (D.N.A.) Standards Institutions have gone rather far in making specifications, and a committee of the Netherlands Standardisation Institution (C.N.B.) has also been at work in this field. While the B.S.I, have retained safety factors as a prominent feature of their regulations, the D.N.A. have limited themselves to prescribing the allowable working stresses. The B.S.I, specifications read: The crane shall be so designed and constructed t h a t when it is working under service conditions.the stress induced in any part shall not exceed either (a) the breaking stress of the material divided by the specified factor of safety or (b) the allowable working stress specified hereafter. And also: The factor of safety for all parts of the crane structure shall not be less than 5, except when another factor or a maximum allowable working stress is . . . specified . . . This factor and the allowable working stresses provide for impact and inertia. Maximum allowable stresses are specified for parts in tension, parts in compression, parts in shear and for bearing areas, and moreover for bolts and screws other than those used in crane structures, while for wire ropes and gearing higher safety factors are prescribed. The D.N.A. gives several tables for the allowable stresses and in general goes more into detail than the B.S.I., while both give instructions as to material, testing (they both advise testing with 25 per cent, overload), brakes, fencing, atmospheric influences, danger of collapsing, etc. Both institutions draw a clear distinction between cranes for heavy duty and other cranes; the B.S.I, recommends higher factors of safety with proportionately lower working stresses for cranes intended for specially heavy duty and/or on which grabs are employed, while the D.N.A. puts cranes working with grabs in the highest danger classes. . Generally speaking, the D.N.A. has treated the subject more scientifically, and the B.S.I, more practically, including, moreover, some provisions as to load indicators, ropes, hooks, swivels, painting, etc. The use of cranes with grabs nearly always, and, in general cargo, often, causes severe shocks. Special consideration should also be 24 SAFETY IN DOCK WORK given to the particular working conditions prevailing when beginning to unload ore and coal, when the grabs may automatically fill themselves as full as possible, and also to the lifting out of the beams, and the trailing of cargo from under the decks. In.view of all these contingencies the construction should receive very careful attention. Particular care should be taken with the means of anchoring to rails, platforms and the like and to the counterbalancing of the weights, for several severe accidents have occurred owing to the collapse of cranes and loading bridges, caused by storm and wind stresses. The following photograph (fig. 20) gives an idea of such a calamity and of the dangers to which it exposes the dockers. Fig. 20 C H A P T E R IV STRENGTH OF SLINGS. INFLUENCE OF THE ANGLE BETWEEN THE LEGS OF A SLING ON THE ACTUAL TENSION IN THE LEGS It is the merit of G. STEVENSON TAYLOR to have drawn the attention of practical users to the relation between angle and tension in sling legs in 1915 in his Memorandum on Chains and Other Lifting Appliances (reprinted 1930); and in several other countries publicity has since been given to the dangers latent in sling angles. Notwithstanding all educational efforts, however, much ignorance still exists on the subject. Stevenson Taylor's Memorandum contains several tables and diagrams. The table reproduced below clearly shows the effects of angular changes. TABLE V. SAFE WORKING LOADS FOR TWO-LEGGED SLINGS MADE OP WROUGHT IRON SHORT LINK CHAINS OF DEFINITE STANDARD OF QUALITY Chain diameter (inches) (1) H M H H V2 Va % i * i Va ! VA 1 Va 1 lÁ 1 Va 1 34 1 Vs 2 2Va 2M 2% 2M Safe working loads in tons (2,240 lbs.) for given angles between ] egs C° (2) 30° (3) 60° (4) 90° (5) 120° (6) 0.42 0.75 1.16 1.68 3.00 4.66 6.75 9.16 12.00 15.18 18.75 22.68 27.00 31.60 36.75 42.18 48.00 54.10 60.75 67.60 75.00 0.40 0.72 1,12 1.62 2.89 4.50 6.52 8.85 11.58 14.64 18.10 21.85 .26.05 30.06 35.45 40.70 46.40 52.30 58.60 65.30 72.47 0.36 0.65 1.00 1.45 2.60 4.04 5.85 7.94 10.39 13.14 16.25 19.60 23.40 27.43 31.80 36.50 41.55 46.90 52.60 58.60 65.00 0.29 0.53 0.82 1.18. 2.12 3.30 4.77 6.48 8.48 10.71 13.25 16.00 19.08 22.40 25.95 29.80 33.93 38.25 42.95 47.80 53.00 0.21 0.37 0.58 0.84 1.50 2.33 3.37 4.58 6.00 7.59 9.37 11.32 13.50 15.84 18.37 21.09 24.00 27.05 30.37 33.80 37.50 26 - SAFETY IN DOCK WORK Although the sizes of chains given in this table range from %s in. (5 mm) to 2 x/¿ m - (65 mm), it is strongly recommended that chains made from iron less than %, in. (8 mm) should not be used for lifting purposes, because they are more liable to overloading and to damage than chains above this size. The safe working loads given in the table are based on the formula: S.W.L. (tons) = 6 d2 where d is the diameter in inches of the iron in the chain link. Where there is any special risk to life or limb a safe working load of not more than 5 d2 should be adopted; where chains are subject to shock or heavy wear, or work over pulleys, or where links are liable to be bent or indented by severe local pressure, as where a single sling is reeved ,¿mnd a load having a hard irregular surface, the safe w o r k ^ g load should not exceed 3.5 d2. The German Standards Association (D.N.A.) has issued a pamphy t (DIN 685, 2nd edition, October 1935) on tested chains; the following is an extract from one of the tables (p. 4) : Angle between the legs Safe working load per leg a5 percentage of the maximum perpendicular position 45° 90° 120° 100 90 70 50 A note indicates that with an angle between the legs larger than 120°, the highest safe working load allowed is only 25 per cent, of that for an angle of 120° and that consequently the angle should not exceed 120°. Several chain manufacturers and also the Association of Belgian Manufacturers for the Prevention of Industrial Accidents (Association des industriels de Belgique pour la prévention des accidents du travail) have issued pamphlets drawing attention to the danger dealt with here, sometimes with diagrams applicable to different angles between the legs. Much useful information on chain slings and the slinging of loads is also given in a safety pamphlet bn "The Use of Chains and other Lifting Gear", issued by the Home Office, London. 1 As a rule all warnings are limited to chains, although the same danger exists when steel wire or fibre rope is used; it should be noted, however, that some regulations {e.g. the British Docks Regulations, 1934) require the same precautions to be taken for wire rope slings as for chain slings , whether used singly or with multiple legs. 1 Home Office Safety Pamphlet No. 3 : The Use of Chains and other Gear (H. M. Stationery Office, London). Price 1 s. net. Lifting STRENGTH OF SWINGS 27 Chain slings should never be shortened by tying knots in them and care should always be taken to see that the slings are not damaged or deformed by coming into direct contact with sharp corners of heavy loads of hard material. It is interesting to note that in Article 11 (7) of the Convention (No. 32) concerning the protection against accidents of workers employed in loading or unloading ships (revised 1932)1 there is the following provision: When the working space in a hold is confined to the square of the hatch, and except for the purpose of breaking out or making up slings, (a) hooks shall not be made fast in the bands or fastenings of bales of cotton, wool, cork, gunny-bags, or other similar goods; ' It is evident that this prohibition is the result of bad experience with breakages of bands or other fastenings. Although in many cases these binders are intrinsically more than strong enough for hoisting the bales with hooks made fast in them, the angle between the parts of the binder on either side of the hook may be such as to increase the tension in these parts very considerably when a bale is hoisted in this way. An example may illustrate this (fig. 21). Bales of compressed wool of a weight of 450 to 500 kg were fastened with iron strips of a width of 32 and a thickness of 2 mm, provided with two holes in order to secure the ends with a pin or rivet, so that the cross section at the weakest place amounted to 50 mm 2 . If the allowable stress on this iron is taken at 6 kg/mm 2 , the safe working load of one strip stretched between the ends may be estimated at 300 kg, the breaking strength being about 1,500 kg. As two hooks were 160° Fig. 21 1 See below, p. 119. 28 SAFETY IN DOCK WORK made fast in two separate strips, no danger could be expected unless the influence of the angle between the legs of the strips were taken into account, this angle being 160° in this case. For a sling with 2 legs the formula T= W 2 cos <p is applicable. T = actual tension in each leg; <p = angle with the vertical line through the point of support ; W= weight of the load. In this case T = • — = about 735 kg. 2X0.17 It is thus evident that it was quite wrong to hoist these bales of wool with hooks made fast in the strips, the stresses in the latter being much higher than could be tolerated. As on such bales the strips are usually fastened with great force by means of mechanical devices, the angle between their legs when.used for hoisting may even exceed 160°; and it is interesting to note that in the case dealt with above an increase of only 10° in the angle between their legs would nearly double the tension in the strips. A.somewhat similar condition arises when a single sling is taken around a load and the hook, ring or egg link is in the bight of the lifting chain. This method should therefore only be used when it is absolutely necessary ; in such cases the strength of the sling should be at least double that of the sling used for the same weight on a straight lift and the bight should not be forced down nearer the load than a distance of one quarter the length of either of the inclined legs. The strength of a sling depends on factors that may operate together or separately. For fibre ropes these factors include: (a) ib) (c) {d) (e) {/) the circumference of the rope; the quality of the material used; the lay of the rope; •• • -... splices and knots; the number of strands; and the cross section of the hook (or shackle bolt) where the sling is suspended. For steel wire ropes the influence of (a), (b) and (d) is, of course, very important, (c) and (e) exercising comparatively little influence, 29 STRENGTH Ol? SLINGS while the influence of (J) is not as important for steel wire rope as for fibre rope. The flexibility of the rope, however, is an important factor, while for chain slings the diameter and quality of the material and the form of the links are important. The flexibility of a wire rope is determined by the number of wires per strand. Flexible rope for shipping purposes is usually 6 X 12 and special flexible 6 X 24. As a very large proportion of the slings used are made of manilla rope1, the very variable factor introduced by the cross section of the hook will be dealt with first. It is obvious that a hook with a sharp edge (a small diameter) acts more or less as a knife and tends t o cut the rope in two and accordingly a broad contact surface is to be recommended. Further, a double sling, used with both parts vertical, is not double the strength of two single parts of the same material, as will be proved below. A distinct difference exists between the stresses in the two following cases: (1) A double sling taken round the load, with one end taken through the other and fixed in the hook (fig. 22) ; and (2) A sling with the load in the middle, both ends being fixed in the hook (figs. 23 and 24). & \ Method 1 is usual for cargo of small and moderate weight; the sling is made of manilla rope or sometimes of steel wire, both of which slip sufficiently to fasten the load in the sling. With this method it is very important that the rope passing over the hook be kept as straight as possible. If the loads are composed of corrosive goods liable to destroy fibre, chain slings are sometimes used, but then method 2a (fig. 23) or 2b (fig. 24) is followed. Methods 2a and lb are further applied with heavy loads, for which manilla ropes are usually not strong enough, so that steel 1 During the war manilla rope has been almost entirely replaced by sisal rope. The British Standards Institution has issued a specification for "Sisal Ropes for General Purposes" (B.S.S. No. 908-1940). In this a factor of safety of not less than 6 is recommended for new sisal ropes, but factors of 7 or 8 should be used under adverse conditions of service. 30 SAFETY IN DOCK WORK wire ropes or sometimes chains are used. Chains are not suitable for method 1, as they do not slip sufficiently. Fig. 23 Fig. 24 It is evident that, when working with method 1, the stresses in the material are other and heavier than with the second method. Hence method 1 is commoner for loads hoisted with manilla slings. Very many tests have been carried out in this connection at Rotterdam. The following table gives the results of 27 tests with a single rope and 27 with a double sling each of the same coil of manilla rope, the coils being, of various qualities and circumferences and the legs being taken as parallel. The ropes were stretched between two bolts of a testing machine ; the influence of differences in the diameter of the bolts was eliminated by seeing that in all tests one bolt had a diameter of 38 mm, the other being thicker. Table VI, which could be completed from other tests, reveals important differences in the results of the tests. In No. 5, for instance, the strength of the single rope is almost STRENGTH OF SLINGS 31 TABLE VI No. Breaking strength of single part in kg Breaking strength of double sling in kg Ratio of breaking strengths, doubîe to single (a) (b) M (a) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 IS 16 17 18 19 20 21 22 23 24 25 26 27 7,600 6,950 5,700 7,480 7,400 7,400 6,980 9,300 7,950 • 8,500 9,050 8,200 5,500 7,300 6,300 6,250 6,150 6,200 5,100 4,300 4,550 6,700 6,400 6,700 4,200 4,050 4,300 7,900 9,050 7,500 9,800 7,500 9,900 9,200 10,100 8,900 9,350 9,600 9,700 5,900 10,400 8,100 9,000 7,550 7,700 7,400 7,100 7,200 7,500 8,400 7,950 5,200 5,000 5,100 1.04 1.30 1.31 1.31 J. 013 1.33 1.31 1.08 1.12 1.10 1.06 1.18 1.07 1.42 1.28 1.44 1.22 1.24 1.45 1.65 1.58 1.12 1.31 1.18 1.24 1.23 1.18 176,510 •218,000 1.24 the same as that of the double sling, and in No. 20 the double sling is 1.65 times as strong as the single rope. When loading and unloading, the circumstances discussed above— and others as well—have to be considered. The inference seems justified that 1.235 or roughly 134 is the factor by which the breaking stress of the single manilla rope has to be multiplied to give the safe working load of the double sling. For double steel wire slings the results of the tests led to the same conclusion. For double chain slings, which, however, are seldom used, the position is somewhat different. The weak point of these appliances is to be found in the unfavourable combination of stresses to which some links may be exposed. For the sake of uniformity it seems desirable to fix the strength of double slings with parallel legs for all kinds of material at 134 times the strength of the single rope or chain. It is the safety factor that must ensure safety if the strength of the double sling is less than 134 times that of the single fall. CHAPTER V MASTS AND DERRICKS § 1.—Masts Although many accidents happen by crushing or breaking of masts, inspection of these parts of the loading and unloading gear is often neglected. As a rule a mast stays in the vessel till the latter is broken up. During the periodical surveys the masts are more or less superficially examined but it cannot be denied that a really reliable examination can only be made with the mast taken out. The photographs in figs. 25 and 26, taken in 1937, show a mast that was in use for loading and unloading only a few days previously. Accidents with masts on new ships seldom occur. The following table, relating t o the cracked masts which came to the knowledge of the Netherlands Port Inspectorate in 1932-1936, seems to indicate that these accidents begin when the mast has reached a certain age. The ships belonged to 10 nationalities. TABLE VII Age of the ships in years Cause of accident 10 12 13 14 15 16 Í8 20 21 23 25 26 28 30 31 36 ? Total Cracked accessory 1 1 Bad condition 1 1 4 1 9 of 2 1 1 1 1 1 Loose stay Injudicious working method 3 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 4 1 1 2 1 1 2 9 23 In view of the fact that these statistics relate to a few ports only, the number of masts cracked during the same period all over the world must have been very considerable. 33 MASTS AND DERRICKS It is remarkable that no accident of any kind has been recorded with a mast less than 10 years old. The safety factor of masts thus seems to be sufficient for the first vears of their life. : . - * • :f V**: •,: ï'-jSr* ^^mmmm .•*.-.5*fc F/g. 25 Ä'g. 2¿ The wear and tear of this important part of ships' gear justifies the contention that close attention must be paid to it during the periodical surveys. For this purpose the masts should be lifted 34 SAFETY IN DOCK WORK out—the first time not later than during the third survey—so as to allow of thorough investigation. Under Lloyd's rules these surveys are required to be made at intervals of 4 years. Special survey No. 1 specifies that masts, spars, rigging anchors and general equipment of steam and sailing ships are to be examined and either found or placed in good and efficient condition. § 2.—Derricks As these parts of the gear can be inspected more easily, the situation is different from that with masts. It has been observed that a considerable number of derricks have fallen, but buckling or breaking of steel derricks, due to lack of strength of the derrick itself, is rare. The cause is mostly to be found in defective equipment or in faulty handling. This is proved by the fact that on sea-going vessels of various nationalities, of 145 cases of collapsing derricks in the period January 1925-January 1937, 112 were due to defective equipment and 33 to faulty handling. Thirty-two persons were injured, 7 fatally. The steel derricks involved in these cases did not break, and the causes of collapse were all found in spans, shackles, blocks, etc., or in faulty handling. In the same period, however, 13 wooden derricks broke to pieces, and in all these cases the wood appeared to be in a bad state or the derricks had been used for a heavier load than the safe working load. Consequently, it will be useful to touch on the strength of wooden derricks. It is true that all new sea-going ships are fitted out with steel derricks, but older ships have to be judged too, while in the coasting trade and inland navigation wood is still often used, for derricks. As a matter of fact the strength of wooden derricks is often misjudged. In 1906, Niels OLSEN published a diagram showing the strength of wooden derricks 1 and the diagram reproduced here is based on this (fig. 27). In this diagram: I = moment of inertia; E = modulus of elasticity; L = length of derrick in m; D = greatest diameter of derrick in mm; R = axial load on derrick in kg; For European pitch-pine E = 95,000; For American pitch-pine E = 145,000. Schiffbau, No. 14, p. 588. 35 MASTS AND DERRICKS Length in meters Ut 5 o - J t>- OD _ ¿ ° fugueur -O Ö" - r en y /íiet r e s • • W _ W 8 —-^ :[ o 30 .5 -w q C} 0 QJ °P . 3 •$• o t mm. o o -1 - in 5o •? 250 >l PO o o •5 o K '8 w o PO N -w o >0 •** O PO rO IOOOH ro O PO -£>• O vO ^ V \. X. o \[ N ro o 1 '\ \ \ ' -> — (7 • — r o ?; ~ï Q n w 3 CD o j\ j> o i- o o 0, o - -t m t o n s 2OO0 2500 "I « M O -q' ^ s . . 3500- / ni -s - 4000- O 4500 \[// \ 1 II7* - D- i OJ "S • - 6OO0- } 1 P= 10 0 0 ^^ kg. or I t o n . 7000 \ ] 8000 \ I\ i i m 11 o x\ 8 *S Length Ñ V . o îy I» ç NJ in meters * * î - o- o» -o o <f TI o 1 r i i — Longueur Fig. 27 Ñ IOOOO" I2000- S o o *- a» o 1 1 en 9000- - IIOOO m? r- g» 5 o - • f ! b w •g 5O00 i\ s 1 —*—'—i—i—i—i—i—i 2 1,1 1,0 0,9 O.Q 0.7 0.6 0,5 0 t10 Y\> <r-!•-// •i 1 . D ' -b- > o o CD C vCSs. ^ Oj o o Mast- Mât Ol t> v SOOO ,/0 o o Ns s ¡ \ \ Ol PO Ol iv •CD O ^, u 0 o ISOO NJNVV CD £ metres Di § 36 SAFETY IN DOCK WORK The diagram is constructed for European pitch-pine and the diameter of American pitch-pine derricks is about 0.9 times the corresponding European diameter. Example: If the diameter of an American pitch-pine derrick with a length of 12 m is wanted, for a safe working load of 3 tons, length mast h 0 — = — = (J.o, length derrick / the axial load on the derrick (i?) for a load of 1 ton is found in the curve in the lower right-hand corner of the diagram as 2.3 tons. The safe working load being 3 tons, however, R becomes 3 times 2.3 tons '= 6.9. For a derrick length = 12 m and R = 6.9 tons the diagram gives a derrick diameter of 360 ram for European pitch-pine, or 0.9 times 360 = 324 mm for American pitch-pine. Wooden derricks for a safe working load over 3 tons should not be used. It may be added that the rules of the Germanischer Lloyd, 1929, page 50, require a safety factor of about 8, and at least 6, and calculate this factor with the formula 5£>4 safety factor = PbL* in which : D = diameter of derrick in cm, measured in the middle; Pb = axial load in kg; L = length of derrick in m, measured from centre of gooseneck to middle of neckband. C H A P T E R VI DERRICK SPANS As regards stresses in the derrick spans the reader is referred to Chapter II; in the present chapter only the span arrangements will be dealt with. The safest method is represented in fig. 28. After the derrick has been moved to the angle desired with the aid of tackle a and the winch, the manilla runner of this tackle is fixed to a bollard on deck. The upper block of the tackle is fixed to a triangle plate and the lower block to an iron strip on deck, the second hole in this Fig. 28 strip being destined for the span chain b, the upper end of which is fixed with a shackle to the triangular plate or a similar construction for the same purpose, e.g. a socket in which the span wire has been sealed and a hole made for fastening the span chain. During loading and unloading the derrick is carried by chain and steel wire 38 SAFETY IN DOCK WORK rope and the tackle may be used as a preventer. Raising or lowering of the derrick can be done very easily and without danger for the workers, and it is almost impossible for the runner to slip out of their hands. Another method is shown in fig. 29 where a special wire rope c, running through a snatch block, replaces the manilla tackle with the manilla runner. If this topping lift is adequately fixed on a barrel or drum with a shackle or hook, this method also may be considered safe. Fig. 29 In fig. 30 the steel wire rope topping lift is taken directly around the barrel or drum. This method is not to be considered as safe as that shown in fig. 29. When the lift is fixed on the barrel or drum, however, and the wire rope is of good flexible quality, it may be considered safe, provided that the span wire is kept taut round the cleat during hoisting or lowering so that the derrick cannot fall down.if the man handling the lift lets it slip because it is too slippery through oil, or his hands are too cold, or because he is struck by a broken wire. It is evident, however, that there is an element of danger with this type which should not be neglected ; in fact it has caused several serious accidents. DERRICK SPANS 39 The dangers inherent in the arrangement in fig. 30 are also inherent in the arrangement in fig. 31, and to an even greater extent, because: Fig. 31 40 SAFBTY IN DOCK WORK (1) The span wire rope is as a rule less flexible; (2) The wire rope is always under strain when the derrick is used so that broken wires may more readily be expected, the more so as a span wire rope of such dimensions is rather expensive, and therefore is kept in use for a great many years ; (3) The entire weight of the derrick hangs on the wire rope when the men have to transfer the wire from the cleats to the winch. It has often happened that for different reasons they could not keep it tight, with the result that the derrick fell down; (4) The stopper is often unreliable, especially when the wire rope or the stopper is oily. " By using a really reliable stopper the danger might be overcome. Several types have been invented, but as far as is known they are not reliable after some years of use. In fig. 32 an arrangement is shown which is often applied as being much safer than that in fig. 31 since the steel wire rope may be more flexible. The tackle enables the men to transfer the span wire rope from the cleats to the winch and vice versa, and raise or lower the derrick without exerting too much force. Fig. 32 In consequence there is less danger of the wire rope slipping out of their hands, especially when a good stopper is used. Nevertheless, several serious accidents have happened with this arrangement, principally because the wire rope came off the cleats DERRICK SPANS 41 when the derricks were lowered by veering out the span wire rope on these cleats instead of on an efficient bollard, but also during the transfer of the wire rope to or from the winch. It may be remarked here that the longer the arms of the cleats, the smaller the danger of the wire rope coming off them. Finally, an unusual method is shown in fig. 33 (two blocks fixed to another). The method is safe if the topping lift is adequately fixed on the barrel or drum. Fig. 33 The parts of the span wire ropes most exposed to wear and tear are: (a) The place where the span rests on the sheave of the span block during loading and unloading; (b) The place where the span rests on this sheave during the voyage, especially when there is exposure to smoke and gases from the funnel, that is if the spans are not stowed away during the voyage. In both cases the wire rope remains bent for a long time and the strands are more or less twisted open at the same place, giving admission to water and smoke and thus causing the inside of the rope to become corroded. Many span wire ropes have broken, sometimes causing bad accidents to the dockers working in the vicinity. 42 SAFETY IN DOCK WORK For this reason the periodical inspection must be carried out •with the greatest care, and span wire ropes should be renewed as soon as the slightest defect is observed. It is even advisable to renew the spans on the occasion of every four-year survey or at least every second survey if they are not condemned before. It is worth mentioning that in 1937 the owners of a ship on which a casualty had occurred owing to a span having broken declared before the Court that they intended to change the spans in future at least every six years. In the standing rigging the splice generally forms the weakest place and it is necessary to remove the covering at every four-year survey. CHAPTER VII BLOCKS In stevedoring, blocks facilitate the hoisting, lowering and trailing of goods and are also employed for moving the derricks. They enable a comparatively small power to act as a much greater power. Consequently they are greatly used in stevedoring and as much ignorance exists concerning them, they will be considered separately. The number of sheaves determines the mechanical advantage obtained in hoisting a certain load, as is shown in figs. 34 to 39. Many practical men know that when hoisting a weight of p tons with a rope led over one sheave it is necessary to exert a pull of p tons at the other end, but they do not know that the stress in the block and the fastening point amounts to 2p tons (see fig. 34). It is very useful to demonstrate this, and it can be done in a very simple way by means of a spring balance as is shown in figs. 40-40c. Men also know that when using double purchase (see fig. 35) P they only need a power of ~r~ tons to hoist a weight of p tons. They are, however, often unconscious of the fact that the stress i a 3P the block and the fastening point then amounts to ~~z" tons.. Figs. 36 to 39 inclusive speak for themselves. Officers and petty officers on board and inspectors and foremen of the stevedoring company, as well as seamen and dockers, should be aware of these facts, because several severe accidents have been due to the misuse of blocks. When a load is hoisted, friction has to-be overcome and this is generally estimated at 5 per cent, of the load per sheave. Whenthe safety factor is taken into account the increase in the stress is: not very large if one sheave is used. If more sheaves are used this. increase becomes larger and larger; in fig. 39 for instance, the increase is no less than 30 per cent. Moreover, it is evident that greasing the blocks is a very i m portant matter that should not be neglected, otherwise the stresses. may further increase. 44 SAFETY IN DOCK WORK ^533-« BLOCKS 45 tM„mmmm0imm0im fe, »<v# fe. 46 SAFETY IN DOCK WORK O • * BLOCKS 47 The stresses have been calculated in the preceding pages with the different parts of the runner in a vertical or nearly vertical position, or with both parts parallel and thus having the same effect. When these parts form angles, the stresses will change more or less, as has been demonstrated in Chapter V, but it is always reasonable and safe to calculate the stresses in cargo blocks for a vertical position of the different parts of the runner, because: (a) the derrick is sometimes used in an almost vertical position, in which case both parts of the runner are almost vertical also (fig. 41) ; (&) the place where the load has to be hooked on is not determined (trailing from under deck, etc.) and the different parts of the runner may be almost parallel (fig. 42). Fig. 41 For leading and span blocks there would be more reason to take account of the angle, but these blocks are often interchangeable with the cargo blocks ; and even if these three types of blocks have a somewhat different form- it is often possible to put one in the place of another. From a practical point of view, owners often prefer the same sizes for span, cargo and leading blocks, which seems the safest. The principles to be followed when using snatch blocks, blocks for guys and the like are evident from the foregoing. It will now be useful to describe briefly the conditions that a block has to satisfy. (1) All parts should be constructed according to the working stresses that they may have to support, assuming a safety factor of at least 5 for ordinary gear with which: 48 SAFETY IN DOCK WORK (a) the diameter of the swivel must be suited to the anticipated tension ; (b) the centre pin may be considered as a part mainly in shear. Fig. 43 49 BLOCKS (2) The runner must be prevented from coming between the sheave and the housing. (3) The lubricating system must work perfectly. As it is sometimes the practice to use another material for the swivel and pin than for the housing and sheave, specification of the material is necessary. Multiple-sheave blocks are often designed with a shackle and bolt or similar construction instead of a swivel. In this case the bolt may be calculated in the same way as for the centre pin. Figs. 43 and 44 may explain this. 6 f W ^n ^ & if J] F^Ä s chapter only swivel blocks ' " ' :)e considered. A standardised design for a singlesheave cargo block is reproduced in figs. 45-48 in which the swivel and pin are clearly shown. A most important question is the safe working load of a block. As always, the weakest part determines the strength of the whole', and as the centre pin is practically a part in shear, the swivel, which is a part in tension, forms the weakest part of the construction, provided that the other structural parts such as the shell Fig. 44 and sheave have been calculated correctly. The diameter of the sheave, the size of which usually designates the block, has nothing to do with the safe working load of the block, as can be seen in the following table compiled by a world-renowned manufacturer: i flHUMaiV II C* w 10 in. diameter single—tested to 10 tons on private machine for 8 tons working load 12 in. diameter single— idem 14 in. diameter single— 16 in. diameter single— Swivel bolt and centre pin are generally of the same or almost the same diameter, and the rupturing tensile stress may be calculated at half the breaking stress when shearing is taken into account. 50 S A F ß T Y I N DOCK WORK Moreover, the swivel is generally forged, and hence the breaking strength of the material cannot be much more than 34-42 kg/mm 2 , while the centre pin is sometimes made of material with a higher breaking strength. Considering what has been said above, the swivel bolt may as a rule be taken as the weakest part of a block. Persons desirous of ascertaining the approximate strength- of a block will do well to measure the diameter of this bolt, and then the tensile strength can be very easily calculated by multiplying the cross-sectional area 34-42 by — — kg/mm 2 , which may be taken for this purpose as the breaking strength of material used for such bolts. If the specification of the material is known, the actual breaking strength has naturally to be taken. If an inspector takes one fifth of the tensile strength, he will have a sufficient idea of the strength of the block. Moreover, it is quite clearly of the utmost importance to enter the dimensions of the swivel bolt (if not the centre pin as well) on the certificate. Fig. 45 Figs. 46, 47 and 48 As to the marking of blocks much misunderstanding exists. Practical users must know what load may be hoisted with a certain block, and this should be indicated on the block. 51 BLOCKS For single-sheave blocks used with a single runner this could be done in a simple way by putting on the shell: Load (to be hoisted) tons. With a double purchase, with one end of the runner fastened to the upper or the lower block, and with multiple-sheave blocks the question is not so simple. The Netherlands Committee for Loading and Unloading Gear etc. on Board Seagoing Ships advised in its Report of 1932 the marking of blocks as indicated in figs. 34 to 39. This method has the advantage of mentioning not merely the load that may be hoisted but also the maximum allowable stresses in the principal parts of the block. 1 Some manufacturers make a habit of marking their blocks with the test load, but this should be discouraged. The diameter of the sheave has to be determined in connection with the wear of the wire. Most manufacturers designate their blocks according to the diameter measured at the outer circum-. ference of the sheave (e.g. 16 in. block). In practice, however, the diameter of the sheave measured at the bottom of the groove is of more importance, since the bending of the wire depends on the inner diameter. (À 16 in. block measured by the first method would become a 15 in. block by the second method.) To avoid misunderstanding, uniformity should be established. Several countries have rules concerning the relationship between sheave and wire and between wire and groove. GERMANY: Vorschriften der See-Berufsgenossenschaft, 1935, page 34 (Sonderabdruck) : No. 13, The sheaves must have a diameter of about 15 times the diameter of the wire. GREAT B R I T A I N : British Standard Specification for Ships' Cargo Lifting Blocks, No. 408, 1931 : To increase the working life of wire ropes, it is recommended t h a t where the angle of embrace is 90 or more [see figs. 49-51] the minimum diameter of each sheave should be as follows for the various sizes of ropes: 1 In some countries, e.g. Great Britain, the competent authorities do not agree with this method, as they consider t h a t it may give rise to confusion in the minds of users. -See British Docks Regulations 1934 (sees. 23 and 33), and British Standard Specification for Ships' Cargo Lifting Block, No. 408, 1931. 52 SAFETY IN DOCK WORK Size of wire rope circumference in. Under 2 2 -2V2 2K-3 3-4 4 and over Diameter of sheave mm in. mm Under 50.8 50.8 - 63.5 63.5 - 76.2 76.2 - 101.6 101.6 and over 10 12 14 16 18 254 305 356 406 457 The minimum diameter of sheaves for any other conditions should be not less than four times the circumference of the rope, Fig. 49 Angle of embrace more t h a n 90° Fig. 50 Angle of embrace 90° Angle of embrace less than 90° N E T H E R L A N D S : Report of the Committee for Loading and Unloading Gear on Board Seagoing Ships, 1932: The diameter of the sheave, measured at the bottom of the groove, must be a t least: For single-sheave topping blocks, 4 to 4.5 times the circumference of the wire rope to be used, if it is composed of 6 X 12 wires with 7 cores of hemp or 6 X 19 wires with 1 core of hemp; and 3.5 to 4 times t h a t circumference if it is composed of 6 X 24 wires with 7 cores of hemp; For load and derrick lowering blocks, 5.5 to 6 times the circumference of the wire to be used in a construction of 6 X 12 wires with 7 cores of hemp, or 5 to 5.5 times t h a t circumference if composed of 6 X 24 wires with 7 cores of hemp. If the wire rope is composed of a larger number of wires than 6 X 24, the diameter should be that for wire rope consisting of 6 X 24 wires with 7 cores' of hemp. I t is recommended not to have the width of the groove of the sheaves more than 1 to 2 mm larger than the diameter of the thickest rope for which the block is made. BLOCKS 53 This is not the place to go into further details, which can be found in the publications of several standardisation committees. Finally, the test loads as stipulated by the Reciprocity Conference, London, 1935, are as follows: Pulley blocks: Single-sheave block Í300 per cent, in excess of [the safe working load. Multiple-sheave block with safe load up to and including 20 tons 100 per cent, in excess of the safe working load. Multiple-sheave block with safe load over 20 tons up to and including 40 tons 20 tons in excess of the safe working load. Multiple-sheave block safe load over 40 tons 50 per cent, in excess of the safe working load. with CHAPTER VIII CHAINS, RINGS, HOOKS, SHACKLES, SWIVELS, ETC. This subject has been elaborately dealt with in the Memorandum on Chains and Other Lifting Appliances by G. Stevenson Taylor, already mentioned, in the publications of several standardisation committees and elsewhere; on the whole, it seems sufficient to refer to these publications and to Article 9 of the Convention (No. 32) concerning the protection against accidents of workers employed in loading or unloading ships (revised 1932).l It may be useful, however, to reproduce here the conclusions reached a t the Reciprocity Conference, held in London, July 1935, as regards testing and annealing with a view to amending and completing regulations under the Dockers Convention. They read as follows: In substance the Conference recommended t h a t chains, shackles, rings, hooks and swivels should be tested with a proof load 100 per cent, in excess of the safe working load, b u t pitched chains, used with hand-operated pulley blocks and shackles, rings, hooks or swivels permanently attached thereto should be tested with a proof load SO per cent, in excess. Every chain, shackle, ring, hook or swivel after it has been lengthened, altered or repaired by welding should be tested and examined. T h e r e c o m m e n d a t i o n s t h e n c o n t i n u e a s follows: Chains, shackles, rings, hooks and swivels made of wrought (i.e. puddled) iron should as a general rule be annealed. T h e following classes of special gear may be exempted: (1) (2) (3) (4) Chains m a d e of malleable cast iron; Plate-link chains; Pitched chains; Rings, hooks, shackles and swivels permanently attached to pitched chains, pulley blocks or weighing machines; (5) Hooks a n d swivels having screw-threaded parts or ball bearings or other case-hardened parts; (6) " B o r d e a u x " connections. In the present state of knowledge steel gear may also be exempted. In all cases annealing should be carried out in a suitably constructed closed furnace and n o t in an open fire. 1 See below, pp. 116-118. CHAINS, RINGS, HOOKS, ETC. 55 For wrought iron gear the temperature should be between 600 and 700 C and the exposure should last for between 30 and 60 minutes. Should new steel gear be annealed the temperature should be t h a t generally employed for normalising, i.e. not less than 900°C. * After being annealed the article should be allowed to cool slowly and should be carefully inspected. The Conference evidently was not in a position to give a definite opinion on annealing steel gear, and left the matter t o be dealt with in national regulations. In fact, several countries have regulated the annealing of steel gear with good results. It now remains to deal with shackles. Careful attention should be given to the bolts of shackles used at places where it is not possible to keep them constantly under notice, and further they should be securely fastened. For cargo and span block shackles, for instance, fig. 52 shows a« adequate fastening. Fig. 52 This type of shackle, however, is not practical for fastening the runner hook, as it is too easy for the nut to catch under the coamings or elsewhere, and so cause an accident. Such shackles should be of a type without protruding parts as shown in fig. 53. With this type the bolt is screwed into the shackle, the rounded head of the bolt being provided, for this purpose, with a square recess into which a key can be inserted. Mention must be made of a type of shackle, which is still to be found on several merchant ships, and in which the fastening of the 56 SAFETY IN DOCK WORK bolt is inadequate for rigging purposes, as has been proved by at least one fatal accident. The bolt of this shackle had been fastened by a cotter pin only, which had come out during the work; the shackle bent open and consequently the derrick fell down, hitting a dock worker, who died a few minutes afterwards. The construction was as indicated in fig. 54. Shackles of this type should never be used. Fig. 53 Fig. 54 The standardisation committees in several countries have done splendid work in designing good chains, shackles, hooks, etc., and the attention of all concerned is drawn to their publications. The permissible wear of chains, etc., is also a matter for consideration. In some countries regulations on this subject have been issued. The Germanischer Lloyd for instance laid down in 1929 that chains, etc., should be renewed when the section at certain places has so diminished that it must be considered dangerous to use them. As a rule they should be renewed if the wear at certain places has reached 10 per cent, of the original diameter. CHAINS, RINGS, HOOKS, ETC. 57 The German See-Berufsgenossenschaft laid down in 1935 that parts (of the gear) that are worn down should be renewed when the wear has reached 10 per cent, of the original diameter or of the original dimensions. In the Netherlands, the Report of the Committee for Loading and Unloading Gear on Board Sea-going Ships expresses the opinion that chains, shackles, hooks, rings, swivels, rigging screws, fastenings on deck, eyes, bolts and other forged material should be renewed when one of the dimensions has diminished by more than 15 per cent. G. Stevenson Taylor states in his Memorandum that some firms in his country have adopted standards of permissible wear, e.g. a reduction in diameter of the iron of -^ inch for' chains up to 1 inch, and Xs inch for chains over 1 inch, but the general condition of the chain should also be taken into account. Wear up to 15 per cent, of the diameter of the iron is allowed in another standard, and even 25 per cent, wear may be permitted, Fig. 55 58 SAFETY IN DOCK WORK Fig. 56 - Fig. 57 when safe working loads are fixed so as to correspond with the reduced sizes. It is not sufficient, however, to have regulations about the permissible wear; every link, shackle, hook, etc., should be submitted to frequent inspections and examinations. A great advantage of periodical annealing is that it offers an opportunity for careful examination of the chain, etc., since after all grease and dirt has been removed by fire, the bare metal is exposed.1 •See G. STEVENSON TAYLOR: Memorandum on Chains and Other Lifting Appliances, 1930, pp. 36-37. CHAINS, RINGS, HOOKS, ETC. 59 It is regrettable that on many ships more frequent inspections and examinations of cargo lifting gear are not carried out by the responsible ships' officers, particularly when such gear has been subject to severe usage or employed on cargoes such as sand, ore, etc., which have a marked abrasive effect. Figs. 55, 56 and 57 show examples of grossly excessive wear of gear which came to notice on sea-going ships in the port of Rotterdam; fig. 55 represents a bow shackle, fig. 56 a span swivel, and fig. 57 the bolt of a leading block. CHAPTER IX , THE INFLUENCE OF QUALITY, LAY, SPLICES AND NUMBER OF STRANDS ON THE STRENGTH OF MANILLA AND STEEL WIRE ROPES §1.—General Remarks An enormous quantity of fibre and steel wire rope is used in dock work, both for standing and running rigging and for loading and unloading appliances, and above all for slings. Stresses in material have been touched upon in Chapter II and the strength of slings in Chapter IV. Further consideration of manilla and steel wire ropes may find a place here, and what applies to these ropes applies more or less to other kinds of rope. For more extensive study reference may be made to the literature on the subject. Nowadays in the shipping world fibre ropes are almost always made of manilla, but occasionally sisal, hemp, flax, coco and other fibres are used. During the present war, sisal has been extensively used in place of manilla, which has become practically unobtainable. §2.—Manilla Ropes When judging manilla ropes the following points have to be considered : (a) material: outward appearance, weight per unit, length, quality and breaking strength of the fibre and of the rope, addition of oil and chemical composition of the oil used; (b) nominal dimensions and method of measuring; (c) method of measuring the breaking strength of the rope; (d) breaking length. (a) Material Ropes display great differences in quality, and it is of the utmost importance t h a t the certificates should mention the breaking strength, and here a clear distinction must be drawn between the real and the calculated breaking strength. For practical purposes MANILLA AND STEEL WIRE ROPES 61 it is necessary to know the former, which is as a rule the lower of the two. The weight of the rope'per unit length is in proportion to the quantity of fibre utilised in its manufacture. A soft laid manilla rope of some six strands may have a high breaking strength when used as a single fall, since the fibres, yarns and strands are not much bent. The same rope may, however-, have a low breaking strength when used as a sling, as the loose lay causes the rope to be flattened on the bolt or hook of the testing machine. If on the contrary a four-strand rope is hard laid the breaking strength of the single fall may be lower, as the fibres, etc., are bent more, and the breaking strength of the sling may be greater, as the rope remains more or less round when stretched between the hooks or shackles of the testing machine. Of course on the whole, soft laid rope is weaker than rope with relatively more fibre (hard laid), the difference varying with the size and firmness of the yarns and strands and with the lay. The addition of oil, which is made to preserve the rope and to lubricate the fibres, may have a great influence on the weight, and'this point should be considered carefully. No corrosive substance may be added, nor any substance for weighting purposes. The quantity of lubricant used should form 8 to 12 per cent. of the weight of the rope. For good rope the fibre used in manufacture should consist solely of new genuine long fibre manilla, when this is obtainable. The fibre shall be well hackled and free from shorts. Though the longest fibres are 3 to 4 m in length, fibre used in the manufacture is seldom longer than 2 in. Indeed, shorter fibres and even very short fibres are often used, a fact that influences the breaking strength considerably. The strands of the rope shall be well formed and shall be free from grooves and sunken yarns. As it is not always possible to judge the rope from its appearance, a heavy responsibility rests on the shoulders of the dealers who sell inferior manilla to customers who, considering price, outward appearance and sometimes certificates, may think they have bought good rope and use it as such. On the other hand, shipowners, captains and stevedores bear great responsibility, if out of misplaced thrift they buy cheap rope and thus endanger the lives of their workers, who have to use it without being aware of its inferior quality. Sometimes the charter party requires the stevedore to use the ship's manilla slings. This is to be deprecated as it is the stevedore who has the responsibility. The interests of the two parties are opposite in such cases, the captain wanting to keep his expenses as low as possible, and the stevedore wanting to work as quickly 62 SAFETY IN DOCK WORK as possible. T h e latter, then, must make his sling loads as large as the circumstances permit. If no certificates are available and there is no occasion to test the ropes, the following table, based on a medium quality of manilia, may give some guidance. TABLE Circumference 50 56 63 69 75 82 88 94 100 Number of strands in. mm 2 2^ 2M 3 4 Safe working load of single rope with a safety factor of 8 kg 2M 3M 3K 3M VIII • 3 3 3 3 3 3 3 3 3 200 250 325 375 425 525 625 725 850 (b) Nominal Dimensions and Method of Measuring Manilla rope is generally designated according to the circumference; in some countries the diameter is given too. The circumference should be measured when the rope is slack and taken as the mean of a t least five separate measurements made with a steel or paper strip, so that the strip follows a bent line (fig. 58). It is not usual to take as the circumference a circle which Fig. 58 Fig. 59 touches the outer edges of the rope (fig. 59). For a three-strand rope the measurements obtained by these two methods would differ by about 10 per cent. MANILLA AND STBBL WIRB ROPßS 63 Instruments exist on which the circumference can be read immediately, but not as accurately as with the strip. The circumference of a used rope may differ very considerably from that of the rope when new. (c) Method of Measuring the Breaking Strength of the Rope The best method is to stretch the rope between two holdfasts (vices) of the testing machine, which enables the more or less incalculable influence of the splices to be left out of account. The results will be different according as a long or a short length of rope is gripped by the vice. Factors influencing the strength of a rope, include the strength of the yarns in combination with the length of the piece which is tested, and the lay of the rope. As the average length of the fibres may be estimated at 1,000 to 1,500 mm it seems reasonable to make the test piece the same length. (d) Breaking Length A good idea of the strength of a rope is given by the "breaking length", meaning the number of km of rope, the weight of which is the same as the breaking strength. The breaking length of ropes of the same material and of the same lay is constant and independent of the diameter. Consequently it is very easy to compare the quality of ropes of different sizes and qualities when the breaking length is known. So far the breaking length has not often been used but the advantages that it offers for the future justify some mention of it. §3.—Steel and Iron Wire Ropes In some countries the term "iron" has been dropped and only the term "steel wire rope" is in use, but as in several important countries "iron" still remains and many manufacturers make use of it, iron wire may appropriately be discussed here. By reason of their lower breaking strength so-called iron wire ropes have to be thicker than steel wire ropes. Some shipowners, especially of small ships, prefer them for their standing rigging, because they look steadier than the comparatively thin steel wire ropes of the same breaking strength. Moreover, they deem it an advantage that the same degree of wear causes a smaller decrease in the total breaking strength. These considerations make them forget the advantages of steel wire. As the safe load of the gear of new ships; both large and small, is gradually increasing, iron wire ropes are becoming too clumsy 64 SAFETY IN DOCK WORK and are steadily disappearing, but in. their turn, steel wire ropes, especially for heavy gear, have found a serious competitor in steel rods. As a rule, material of a breaking strength of 130-180 kg/mm 2 is in use for steel wires, 130-140 kg/mm 2 being most common; material of a lower breaking strength is generally called iron. Iron wire is generally made of material with a breaking strength of 40-45 and 60-70 kg/mm 2 . The ropes should be of a composition suited to the operations for which they are intended. For the standing rigging, steel wire ropes of 7 strands with 7, 12 or 19 wires to the strand are recommended, the choice of the number of wires depending on the circumference of the rope, and the diameter of the wires, as it bears on the suitability of the rope for splicing. For runners, the ropes should be more flexible and the 6 X 1 2 quality with 7 hemp cores is considered more suitable when the circumference is 51 mm (2 in.) or less, and the 6 X 24 quality with 7 hemp cores for greater circumferences. For spans and guy pennants with a circumference of 51 mm (2 in.) or less, the 6 X 12 construction with 7 hemp cores or the 6 X 1 9 with one hemp core is recommended, and for a greater circumference, the 6 X 24 construction with 7 hemp cores, or the 6 X 1 9 with 1 hemp core. The choice of the strength and composition of the rope depends on the anticipated strain in conjunction with the safety factor, the diameter of the drum or sheave for which the rope is intended, and any special circumstances in the operations. The completed rope shall be securely and evenly laid. Ropes should be adequately greased at regular intervals, care being taken t h a t the grease is entirely free from acid. All wires have to be galvanised, which lengthens the life of the rope considerably but decreases the strength by about 10 per cent. In some countries; however, galvanising is only advised for standing rigging. As to the tensile test (it should not be forgotten that the actual breaking strength must be known, which is about 85-90 per cent. of the calculated breaking strength), the wrapping test and other tests which may be prescribed, attention is drawn to Government regulations and to those issued by standards associations and classification bureaux. Even if the core of a steel wire rope is made of metal, it is not always made of the same metal as the other strands. If it consists of a strand of steel wires, it may increase the real breaking strength, MANILLA AND STEEL WIRE ROPES 65 but it must not be forgotten that the twisting of this central strand is different from that of the other strands, while splicing is difficult and often neglected. If on the contrary the wires are melted in, this factor is of no account. At the same time it seems reasonable to assume that as long as the core is not broken, it increases the strength of the rope. Some countries have prescribed that in calculating the breaking strength the core may only be partly taken into account. The question of when a wire rope has become unfit for use has been dealt with by various countries. The British Docks Regulations, 1934, contain the following regulation : Section ZO—(c). No wire rope shall be used in hoisting or lowering if in any length of eight diameters the total number of visible broken wires exceeds 10 per cent, of the total number of wires, or the rope shows signs of excessive wear, corrosion or other defect which, in the opinion of the person who inspects it, renders it unfit for use. In the Netherlands, iron and steel wire ropes have to be renewed when extensive corrosion has occurred or when more than 10 per cent, of the total number of wires have been broken over a length of 10 times the diameter of the rope. CHAPTER X TESTING AND EXAMINATION OF LIFTING MACHINES AND GEAR BEFORE BEING TAKEN INTO USE Article 9 of the Convention (No. 32) concerning the protection against accidents of workers employed in loading or unloading ships (revised 1932)1 provides for the issue of appropriate regulations to ensure t h a t no hoisting machine, or gear, whether fixed or loose, used in connection therewith, is employed in stevedoring operations ashore or on board ship unless it is in a safe working condition. This provision of the Convention has been supplemented by the recommendations of the Reciprocity Conference, London, 1935, as follows:(1) T e s t s and e x a m i n a t i o n s of h o i s t i n g m a c h i n e s and gear o n board. Before being taken into use: (a) Every winch with the whole of the gear accessory thereto (including derricks, goose-necks, eye-plates, eye-bolts or oilier attachments) should be tested with a proof load which should exceed the safe working load as follows: Safe working load Up to 20 tons 20 — 50 tons Over 50 tons Proof load25 per cent, in excess 5 tons in excess 10 per cent, in excess The proof load should be hoisted with the ship's normal tackle with the derrick a t an angle which should not be more than 15 to the horizontal, or when this is impracticable, at the lowest practicable angle. The angle a t which the test was made should be stated in the certificate of the test. After the proof load has been hoisted, it should then be swung as far as possible in both directions. As a general rule all tests should be carried out in this way by dead load, and no exception should be allowed in the case of gear on new ships. In the case of replacements or renewals, however, spring or hydraulic balances may be used where dead loads a r e not available. Where a spring or hydraulic balance is used it should be reliable and accurate and the test should not be regarded as satisfactory unless t h e indicator remains constant for a period of at least several minutes. Thorough examination for the purposes of Article 9 (2) of the Convention should be understood to mean a visual examination, supplemented if necessary by other means such as a hammer test, carried out as carefully as the conditions 1 See below, p. 116. TESTING AND EXAMINATION 67 permit in order to arrive a t a reliable conclusion as to the safety of the parts examined; and if necessary for this purpose, parts of the machines or gear must be dismantled. (b) Every crane and other hoisting machine with its accessory gear should be tested with a proof load, which should exceed the safe working load as follows: Saje working load Proof load Up to 20 tons 20 — 50 tons Over 50 tons 25 per cent, in excess 5 tons in excess 10 per cent, in excess The said proof load should be hoisted and swung as far as possible in both directions. If the jib of the crane has a variable radius, it should be tested with a proof load as defined above a t the maximum and minimum radii of the jib. In hydraulic cranes where, owing to the limitation of pressure, it is impossible to hoist a load 25 per cent, in excess of the safe working load, it will be sufficient to hoist the greatest possible load. (c) Wire ropes should be tested by sample, a piece being tested to destruction. Chains, shackles, rings, hooks, swivels and pulley blocks have already been dealt with in this connection in Chapter VIII. There is sometimes a difficulty in finding a dead load for the purpose, but fig. 60, showing the testing of a 50-ton derrick with Fig. 60 a proof load of 55 tons, suggests that with a little good will it is always possible to find the necessary load. The component parts of the test load must of course be adequately fastened, as is shown in fig. 61. 68 SAFBTY IN DOCK WORK A test with the aid of a spring or hydraulic balance does not allow the- test load to be swung as far as possible from port to starboard. Moreover, stays, shrouds, guys, fastening points of span and guy blocks, etc., or in short the gear as a whole, are not submitted to a test that can be relied upon when hoisting and lowering a load equal to the safe working load under working conditions.. Fig. 61 Owing to the risk of breakage of a part of the gear during the test, the load should not be hoisted higher than is absolutely necessary and a preventer wire should be attached. Hatches must be kept closed, so that if anything breaks the load will fall only a short distance and will not damage the bottom of the ship. CHAPTER X I MEANS OF ACCESS TO HOLD, FROM SHORE TO SHIP, FROM RAILING TO DECK, AND TO SHIPS NOT LYING ALONGSIDE A QUAY OR ANOTHER SHIP § 1.—Means of Access to Hold Inadequate means of access have been the cause of many accidents. An example of very dangerous ladders and cleats is seen in fig. 62. Fig. 62 Article 5 of the Convention (No. 32) concerning the protection against accidents of workers employed in loading or unloading ships 70 SAFETY IN DOCK WORK (revised 1932)l contains a fairly complete set of regulations on ladders. It should be borne in mind that most of the dimensions specified in this article are minima, e.g. the width of the rungs of a ladder must not be less than 10 inches (25 cm), but for new ships a width of 30 cm is recommended and in fact accepted in several countries. A very important point is the number of ladders available in a hold. The increasing size of hatches raises the question whether in hatches above a certain length two ladders should be installed, one fore and one aft, and alongships or thwartships, according to the conditions in the hold. Some countries have already issued regulations on this point; in Germany the limit of 5 m is fixed, subject to certain exceptions (See-Berufsgenossenschaft) ; and in the Netherlands the limit is 10 m. If shifting boards are placed a second ladder is always necessary, partly because ladders are often rendered inaccessible by having goods stowed around them, especially in ships tarrying general cargo for many destinations. It is advisable to build the ladders off the centre line, especially if there is any likelihood of grain being carried, and hence shifting boards being required. Fig. 63 If separate small deck openings have been made or ventilators are used for the entrance to the hold, as is often the case on ships built for carrying ore and coal, the dimensions of these openings 1 See below, p. 114. MEANS OF ACCESS 71 and any manholes should n o t . b e too small, because the ladder should enable the workers to escape quickly from the hold in emergencies (explosion, fire, etc.). The minimum should be 60 X 60 cm, or 60 cm inner diameter in the case of round openings. Fig. 63 shows a good deck opening, giving access to the iron hold ladders behind the deck stanchions (seen in fig. 64). Fig. 64 The means of access to the ladder on deck has to be wide enough to enable the workers to reach the ladder without endangering their lives. It should be at least 40 cm wide; and if it leads along moving parts, 50 cm is recommended. ' The increasing depth of the holds creates a very difficult problem; on big passenger ships the ladder in a trunk hatchway mav be 30 or 40 m long. When the dockers in the hold have to escape quickly (fire, explosion, poisonous gases), an old or asthmatic man may not be able to reach the top of the ladder without taking a rest, thus blocking the way for his mates. Moreover, this long 72 SAFETY IN DOCK WORK unprotected ladder may be dangerous for men who are not accustomed to it and are liable to giddiness. For these reasons such ladders should be interrupted at certain distances (e.g. at every 10 or 15 m), but a system of sloping ladders near the hatchway is preferable. Shipbuilders have been aiming at ladders that facilitate access to the hold; fig. 65 shows ladders sloping from deck to deck on a cargo ship. Fig. 65 MEANS OF ACCESS 73 Fig. 66 shows a means of protecting a vertical hold ladder. Every precaution should be taken to facilitate the escape of the workers employed in the hold. Means to this end include escape hatches and semicircular tubes with rungs, hung at the top of Fig. 66 the coamings. These tubes also possess the advantage of allowing supervisors to enter and leave the hold easily. Figs. 67 and 68 illustrate this. §2.—Means of Access from Shore to Ship and from Railing to Deck Article 3 of the Convention (No. 32) concerning the protection against accidents of workers employed in loading or unloading, ships (revised 1932)1 contains several provisions on this subject. 1 See below, p. 113. 74 SAFETY IN DOCK WORK Fig. 67 Fig. 68 MEANS OP ACCBSS 75 The permissible slope of the gangways depends on several circumstances. A steep gangway may be climbed without any danger if it is provided with stepping laths of a practical form and of adequate dimensions, as shown in fig. 69. The same gangway without or with inadequate laths would be unsafe at the angle shown. A dangerous spot some/ "" times exists where the ganging. 69 way reaches the ship's railing, and the steeper the gangway the greater the danger. Sometimes a person boarding the ship has practically no handhold when he leaves the gangway for the stepladder leading from railing to deck, unless a stanchion is placed on the railing or on the stepladder, or other means are provided to protect this spot, which is all the more dangerous when there is a gap between the end of the gangway and the top of the railing. Fig. 70 illustrates access by means of a stepladder with stanchion, but as the ship's accommodation ladder is used here, the danger is not so obvious as with a gangway. Fig. 70 76 SAFETY IN DOCK WORK A practical improvement, shown in figs. 71-72, is often used on smaller German ships. The last stanchion is of a special form and movable, and thus always provides a firm handhold. Fig. 71 Fig. 7.2 A similar though less serious danger exists when the quay is higher than the top of the railing; the German system obviates this danger also. MEAN'S OF ACCESS 77 Further, appropriate measures should be taken to prevent the foot of a stanchion from being accidentally lifted out. Special attention should be given to rope ladders. With round rungs they should not be used for stevedoring work. Steps should be of sufficient width to provide a good foothold, and the ladder should be so constructed that the steps remain horizontal. •If in an exceptional case a rope ladder has temporarily to be used for entering a hold, it should be fixed at the bottom also to prevent it from swinging or turning round. Rope ladders used on the outside of a ship should have one or more horizontal laths fixed at the back to prevent them from turning round. § 3.—Means of Access to Ships not Lying Alongside a Quay Article 4 of the Convention (No. 32) concerning the protection against accidents of workers employed in loading or unloading ships (revised 1932)1 has something to say on this subject, which is a very important one, for the lives of many dockers are endangered by failure to take appropriate measures to ensure their safe transport. Vessels loaded or perhaps overloaded with dockers going to or coming from their work may be exposed to serious danger, owing to conditions of navigation, especially in stormy weather when a strong current is running, or visibility is decreased by fog, snow or rain. Other sources of accident are vessels in a bad state or insufficiently manned. In a few countries regulations have been issued concerning the conveyance of dockers by ship. As far as is known the regulations in force at Rotterdam are the most detailed and an extract from them is given below: Section 3 1.—When dockers have to be conveyed by water to or from a sea-going ship or other vessel, wharf, shed, warehouse, or depot, the direction or management of the stevedoring undertaking concerned shall provide for this purpose free of charge suitable vessels in good condition and well equipped for safe conveyance, t h a t is to say, either: . (a) vessels with mechanical propulsion; or (b) vessels without mechanical propulsion. A rowing boat may only be used when conveyance can be effected without increasing the normal risks and neither the distance to be covered nor the weather is a source of difficulty. 2.—The vessels mentioned in 1 (a) shall comply with the following requirements: (a) they shall be so built t h a t with a full complement and in normal weather water cannot come on deck either through the hawse holes or scuppers or over the bows in such a way as to inconvenience the dockers. 1 See below, p. 114. 78 SAFETY IN DOCK WORK (6) the persons a n d loads to be carried shall be properly distributed over the vessel; (c) during the r u n the watertight bulkheads shall be closed; (¿) they shall be manned by a sufficient and experienced crew; (e) the helmsman's stand shall be such as to afford him a sufficiently clear field of vision on all sides; (/) if the railings of the vessel are lower than 60 cm a t the place allotted to the passengers, adequate protection shall be installed to a height of a t least 75 cm above the deck. This protection shall be so constructed t h a t even if it is leaned against over the whole length there is no danger of its breaking; If stanchions, supports and the like are used, they shall not be more than 2 m apart; (g) the number of lifebuoys on deck shall be a t least equal to the number of the crew; All lifebuoys shall be kept in good condition and so placed that if the vessel sinks they remain afloat; One of these buoys shall be in the immediate reach of the master and one as near as possible to the stern; (Ä) a suitable d r a g weighing a t least 2 kg with a line of suitable dimensions and in good condition shall be provided and kept in readiness; (*) the maximum number of persons to be carried shall be indicated as follows a t a conspicuous place on deck: S T E V E D O R E S ACT Total persons In calculating the number of persons to be carried on deck, it shall be reckoned that for every 2m 2 available deck space (after deducting the space taken up by refrigerators, wheelhouses, ventilator cowls, ship's lights, etc., from the total deck space) not more than three persons shall be carried ; if these breaks in the deck surface are usually used as seats, persons may also be carried on them subject to the undermentioned rules concerning seats. In a cabin the number of persons shall not exceed the number of fixed seats. For every seat a t least 60 cm width per person shall be reckoned. 3.—The vessels mentioned in 1 (b) shall comply with the following requirements: (o) the vessels shall be kept in good condition and be adequately equipped; (6) metal rowing boats shall be provided with air tanks if the circumstances in which these boats are usually used make this desirable; (c) the m a x i m u m number of persons to be carried shall not be more than safety allows, and shall be indicated a t a conspicuous place as follows: S T E V E D O R E S ACT Total persons 4.—If dockers make use of vessels other than those provided by the direction or management of the stevedoring undertaking concerned, these vessels shall comply with the provisions of 2 and 3. 5.—All the notices required by this section shall be in distinctly legible letters or figures a t least 40 mm high with strokes a t least 8 mm thick . . . . 6.—If on the vessels mentioned in 1, bicycles or goods are carried, the maximum number of persons t h a t may be carried by the vessel shall not exceed the number allowed by subsection 1, less one for every bicycle or every 75 kg of goods carried. CHAPTER XII HATCHES, HATCHWAYS, HATCH COVERINGS, COAMINGS AND BEAMS § 1.—General Remarks The purpose of hatchways and their equipment is not at all the same on sea-going as on inland-waterway vessels. On sea-going vessels they are subject to the requirements regarding the seaworthiness of ships, whereas on inland-waterway vessels their principal purpose is the protection of the cargo. In some cases, however, when inland-waterway vessels have to sail on broad rivers or lakes, seaworthiness is an important matter. In this chapter only sea-going ships are considered. Fig. 73 § 2.—Hatches The dimensions of hatches have steadily increased. This does not endanger the lives of the workers, unless the remaining deck space is insufficient for safety. In this connection it should be 80 SAFETY IN DOCK WORK remembered that hatch coverings and beams when lifted out are often put on deck. They should preferably be stowed as near as possible to the sides. Sufficient space should be left around the coamings for workers to pass, and for signal men, tally men, supervisors and other people concerned with the cargo to stand safely near the hatch. The working space around the hatches of 'tweendecks should also be sufficient to enable the workers to remove and replace beams and hatch coverings in safety. Fig. 73 illustrates an example that should not be followed: the deck cargo had been stowed sufficiently far from the coamings, but the stevedore has used the free space for the beams. § 3.—Hatchways Larger hatches have meant larger hatchways. This is an advantage for the workers in that loads cannot so easily bump against the coamings and by falling injure those in the hold. If, however, there is practically no place left for the workers to take shelter under the decks when loads are hoisted or lowered, they may be in danger, the more so as the increased size of the hatchways may induce the stevedoring company to put more shifts in the hold than can be deemed safe, in order to hasten the work. Persons responsible for safety should keep a sharp watch on these points. §4.—Hatch Coverings Up to a few years ago hatches were covered by means of wooden coverings resting on fore and aft beams and thwartship beams. When the hatches were small the beams were sometimes of wood, but on modern ships only steel thwartship beams are to be found, and fore and aft beams have disappeared. Consequently, wooden hatch coverings are always placed alongships. Moreover, since shipbuilders have been convinced of the advantage of making all hatch coverings of the same dimensions, so that .they can be interchanged without the slightest danger to the workers, the risk of being hit by badly fitting coverings has diminished considerably, but the greatest care should be taken to avoid these accidents on older ships. (If the construction does not allow the last section of a hold to be covered in the same way as the others, the difference should be so apparent that no mistake is possible.) Another advantage of making all hatch coverings interchangeable is that marking becomes unnecessary. HATCHES, HATCHWAYS, ETC. 81 Fig. 74 illustrates the danger to the dockers when the hatches have not been covered in a safe way. It is easy to see that a load touching coverings that are too long or placed in an unsafe way may displace them and cause serious accidents. Fig. 74 Hatch coverings should be kept in good repair and should not therefore be used in the construction of deck or cargo stages or for any other purpose which may expose them to damage. Special attention should be given to the parts of the coamings and beams on which the ends of the hatch coverings rest. According to the International Loadline Convention, London, 1930, these parts should be 63mm wide, and the German SeeBerufsgenossenschqft prescribes that they should be at least 75 mm for hatch coverings lying alongships on vessels built after 1 January 1925. Sometimes, to give the top of the beam an even surface, the coverings touch each other and are kept in their place by wooden cleats underneath. This is quite inadmissible. Inspection of these cleats can only take place after part of the hatch has been opened and an accident may occur while this is being done. Moreover, this inspection will often be neglected. The fatal and other severe accidents to a great many workers through being hit by falling hatch coverings, together with the loss of time incurred when opening or closing the larger hatches, have led naval architects and many private inventors to seek an adequate solution to the problem of safe hatch coverings. Figs. 75 and 76 show systems that have been applied in practice. However, the choice of a system of hatch coverings for a particular ship is not influenced merely by the time required to open 82 SAFETY IN DOCK WORK »c. K g . 75 Ftg. 76 HATCHES, HATCHWAYS, ETC. ' 83 and close the hatches and the safety of the operation, but also by the possibility of damage to the cargo by leakage or by the temperature, which is likely to be higher under iron coverings than under wooden ones. Not only owners but also, and more especially, underwriters, have an interest in the system adopted. § 5.—Coamings Danger for the workers exists: (1) When the coamings around the- hatch are not sufficiently high; and (2) When there are no coamings at all, this being the case on several passenger ships or ships with passenger accommodation, where a flush deck is wanted for purposes of recreation. The Convention (No. 32) concerning the protection against accidents of workers employed in loading or unloading ships (revised 1932)1 has the following regulations on this point: Article 6 • (1) While the workers are on a ship for the purpose of the processes, every hatchway of a cargo hold accessible to the workers which exceeds 5 feet (1.50 m) in depth from the level of the deck to the bottom of the hold, and which is not protected to a clear height of 2 feet 6 inches (75 cm) b y the coamings, shall, when not in use for the passage of goods, coal or other material, either be securely fenced to a height of 3 feet (90 cm) or be securely covered. National laws or regulations shall determine whether the requirements of this paragraph shall be enforced during meal times and other short interruptions of work. (2) Similar measures shall be taken when necessary to protect all other openings in a deck which might be dangerous to the workers. These regulations are found in the same or nearly the same wording in several countries interested in the protection of dockers. Besides the danger that this article provides against, there is another inherent in the flush deck. Objects falling out of the hands of a person standing near the coaming or from a scale may roll or slide into the hatch and injure the workers in the hold. A fatal accident has been caused by a barrel of paint rolling into the hold on to a dockworker's head. The same danger may threaten persons slipping on the deck when it is frozen, or slippery from oil, linseed or water. General agreement is lacking on this question, for in one country the flush deck is absolutely forbidden, in other countries there are 1 See below, pp. 112 ff. SAFETY IN DOCK WORK 84 no regulations on the point, and elsewhere the absence of a fixed coaming is allowed, provided that loose but strong and adequately fixed coamings are placed when the hatch is opened. The following illustrations give an idea of a protecting system that has proved satisfactory for several years (figs. 77 and 78). L-v. î?é$f Fig. 77 Fig. 78 '•/•:/•: Y. r/. HATCHES, HATCHWAYS, ETC. 85 § 6.—Beams It is evident that displacement of beams used for wooden hatch coverings may cause the beam itself and also the coverings to fall into the hold with disastrous results to the workers below. Hence beams that are not removed should be adequately secured to prevent displacement. Fig. 79 Fig. SO 86 SAFETY IN DOCK WORK For this purpose the ends of the beam and the cleats in the coamings are generally provided with corresponding holes, through which a bolt is p u t . This bolt should be secured by a nut, as it has happened several times that the bolt has worked loose with fatal results. I t is advisable to give an oval form to the hole so that the bolt can be put in even when the coamings have moved a little, or when dirt has prevented the beam from resting on the whole length of the cleat. The same serious accidents that led to the invention of new types of hatch coverings prompted the invention of automatic means of fastening the beams. Some of these systems have proved efficient and the types shown in figs. 79 and 80 are among them. In the course of time these appliances pay for themselves, since not only do fewer accidents happen, but also there are no bolts and nuts, articles that very often disappear and have to be renewed. No person should be allowed to go upon beams for the purpose of adjusting the gear for removing and replacing them, because experience has proved this to be very dangerous. The holes in the beams required for lifting them should therefore be made sufficiently near the ends. Fig. 81 On some ships removal of the beams is unnecessary, as is shown in fig. 81. CHAPTER XIII LOADING AND UNLOADING OF GOODS TRANSPORTED IN BULK AND OF GENERAL CARGO § 1.—Bulk Cargo The safe handling of bulk cargo largely depends on the safety of the machinery used. As this subject has been dealt with in Chapter III and elsewhere, here it will only be necessary to supplement what has already been said. When unloading with the aid of grabs, stevedoring undertakings, in order to save wages, often omit to post a signaller on deck. When nobody is in the hold this may be exempt from danger, but if trimmers are working in the hold a signaller is indispensable even with large hatches. Moreover, a signaller is always necessary when members of the crew and other persons have to pass over the deck. When, too, goods are unloaded from lighters and loaded into a sea-going ship, or vice versa, a signaller should be present, because neither crew nor trimmers can see when the grab returns. A second man should be placed on the shaft tunnel in order to guide the grab and to give the necessary indications. No grab should be hoisted, lowered or unloaded while anyone enters or leaves, the hold along a ladder in the hatchway; for this kind of work, access to the hold by means of small but adequate separate hatches is advisable. Grabs, even when empty, are heavy (an empty grab of a 30-ton bridge crane weighs 20 tons). Great care should be taken to avoid protruding parts on the inside of grabs, since it frequently happens that small pieces of coal or ore do not fall directly out of the opened grab but stay behind a rivet head or nut and fall out as the grab swings back. §2.—General Cargo An immense variety of methods for handling general cargo is applied all over the world in the loading and unloading of tens of thousands of sea-going and hundreds of inland-waterway vessels. These methods may be grouped in three main classes according to the equipment used, namely: 88 SAFETY IN DOCK WORK (a) machinery and gear belonging to the ship; (b) shore and floating general cargo cranes; (c) miscellaneous appliances for loading and unloading. (a) Machinery and Gear Belonging to the Ship A method t h a t is becoming more and more general is loading and unloading with coupled derricks (with the aid of inner and outer tackle). The stresses in the runners may vary considerably, owing to the weight of the load, the capacity of the winch and the angle between the runners (depending on the length of the derricks in connection with the height of the bulwarks and the dimensions of the load). If the gear has not been specially constructed for this method of working, the load should not be heavier than ¡Hs of the safe working load of the slewing derrick and should never exceed 2 tons. The stresses in the guys, moreover, may become very high, according to the stresses in the runners and to the place on deck or on the railing where the guys have been fastened. When working with inner and outer tackle, preventers should be placed on the guys, the top of which should be fastened at the nock of the derrick and not at the guy pennant as is often done. Further, this method of working should only be allowed with single runners. Many derricks have arrangements for working with double purchase in order to lift heavy loads, and even three arrangements are sometimes found, so that one derrick may have three different safe working loads. The stevedoring firm has to consider carefully which method to apply for a certain load, and to make sure that all parts of the gear that should be changed have actually been changed. It is necessary to know the actual weight of the load and in this connection reference must be made to thé Convention (No. 27)1 concerning marking of the weight on heavy packages transported by vessels, adopted by the International Labour Conference in 1929. If the dimensions of load, derrick and hatch do not allow the load to be brought to its proper place in the hold by the derrick only, one or more blocks and a manilla runner are sometimes used. This method may also be applied when loading in lighters lying alongside sea-going vessels, and for quay work. The stresses in these blocks and runners are often underestimated and the stevedores should take careful stock of the situation. 2 1 2 See below, p. 122. For stresses in blocks, see Chapter V I I . GOODS IN BULK AND GSNBRAL CARGO 89 Several accidents have occurred when dragging a load in the hold to its place under deck with the aid of a winch ; the persons in charge should keep a sharp watch on such operations. The following sketch shows the arrangement, seen from above, found on board a ship where a fatal accident had occurred while the stevedore tried to drag a load under deck after it had been lowered into the hold (fig. 82). Tackle had been fastened with a block B to the load, and with another block A t o a n eye, fixed to the ship. The runner had been led through a snatch block C to the 3-ton winch. Owing to the weight of the load and to friction, the steam valve had to be opened fully to move the load, so that the stress in the runner amounted to at least 3 tons, and in block A and in the eye, to about 9 tons. The eye proved to be the weakest place and broke; the docker D was hit by block A and killed on the spot. It may be generally stated that when a block is used, men should never stand in the angle between the runners. If the man who was fatally hit in the case quoted had not stood in that angle but at a safer place, only material damage would have been caused. (b) Shore and Floating General Cargo Cranes Much of what has been said under (a) applies also to loading and unloading with shore cranes. It may be worth while, however, to give an idea of the influence which a slight deviation of the runner from the vertical may have on the movement of the load itself when cranes with very long jibs are used, as is becoming more and more frequent nowadays (see fig. 83). A fatal accident occurred owing to the load bumping against a part of the ship during discharge of a load measuring 1.6 X 2.2 m, which would not have been too much if the load had risen vertically. However, a deviation of the runner of one degree from the vertical •caused the load to swing through 2 m in the horizontal plane during the passage through the hatchway, and this nobody had foreseen. This shows that the discharging of loads of such large dimensions with all cranes should be allowed only through sufficiently large hatchways and with guide ropes attached to the loads. 90 SAFETY IN DOCK WORK Fig. 83 (c) Miscellaneous Appliances for Loading and Unloading Appliances including trays, buckets, nets and other combinations of wood, iron, steel or manilla ropes, chains, etc., are used for loading and unloading general cargo. There are many types of tray—long, square, without sides, with low sides, and with high sides. The modern type in use for loading and unloading general cargo that is not slippery or in any other way dangerous when being handled by trays, is almost square and without sides and often constructed in such a way that when loaded it may easily be transported from the quay to the shed, or vice versa, by means of a combined electric truck and crane. GOODS IN BUUC AND GENERAL CARGO 91 Trays without sides naturally increase the danger of parts of the load falling off when bumping against the coamings or another part of the ship ; but a tray properly loaded with small or large wooden cases, or with other goods suitable for being hoisted in this way, is not more dangerous without than with sides, if the load is protected by the four-legged sling with which the tray is hoisted, or otherwise. In fact, it is not the bottom but the top cases that fall first when the tray touches a part of the ship, as has been proved by a series of tests undertaken at Rotterdam. Hence the precautions to be taken should consist in protecting the whole load against displacement, and not primarily that part of it which is directly placed on the tray, the friction against the tray being often greater than between the parts of the load. Fig. 84 illustrates the loading of long bags, effectively kept together with the four legs of the sling. Fig. 84 _ Slippery or round cargo or paving stones and patent fuel should not be handled in this way, nor should such goods as glass or earthenware and; containers filled with corrosive substances. Loads hoisted on these trays may be protected in different ways, as shown in figs. 85 and 86, which speak for themselves. When loading and unloading small, more or less square objects such as coal briquettes, e t c , special measures should be taken. If the goods are likely to be damaged, as is the case, for instance, with soft building bricks, which are worthless when even a corner 92 SAFETY IN DOCK WORK GOODS IN BULK AND GBNERAL CARGO 93 is missing, they should be stacked on the tray in such a way that the danger of falling off is reduced to a minimum. Fig. 87 gives an example of such stacking. Fig. ¿7 This method, however, cannot be recommended unreservedly and some protection round the tray is sometimes necessary. A very safe method of loading coal briquettes is shown in fig. 88. The container has a movable bottom, carried by springs; the bottom comes to the top when the container is empty, and descends as the briquettes are put into it. Consequently, there is no risk at all of a briquette falling out, even if a part of the ship is touched during loading or unloading. If such goods have an uneven surface, e.g. granite paving bricks, it is too dangerous to stack them on a tray; they should be handled in containers or the like. The utmost care should be taken that these containers are loaded safely and that no goods can fall out of them. 94 SAFETY IN DOCK WORK Fig. 88 The following photograph gives an idea of a type often used for unloading paving stones (fig. 89). 1 \w$W« ijSg&té* " i| ^Wv?*Sii-" Fig. 89 GOODS IN BULK AND GENERAL CARGO 95 Fig. 90 i, Fig. 91 \ 96 SAFETY IN DOCK WORK Round and slippery goods should be put in steel wire nets as is shown in fig. 90. In order not to damage the load it is sometimes necessary to keep the legs of a sling spread as is shown in fig. 91. Care should be taken, however, that enough pressure remains on the component parts of the load or that other measures are taken ; here, canvas has been used as protection to prevent anything from 'falling. Fi S- 92 Fig. 93 When working with long iron, such as rails, etc., the following method may be recommended. The ends of the iron are put in a steel bucket, which is fastened to the load, as is shown in fig. 92 and there is no danger of a piece slipping out, while fig. 93 illustrates the danger of hoisting the same load without a bucket. CHAPTER XIV INSPECTION AND SUPERVISION § 1.—Inspection Article 17 of the Convention (No. 32) concerning protection against accidents of workers employed in loading or unloading ships (revised 1932)1 prescribes that provision shall be made for an efficient system of inspection. 2 The establishment of an efficient port inspection service is of extreme importance, not only for those countries that ratify the Convention, but for all other maritime countries as well. The port inspection service should preferably be organised under the administration of the department responsible for the protection of industrial workers throughout the country. Such an arrangement would have several advantages: labour inspection would. form a complete whole within the framework of the department, covering all branches of work in industry, commerce, transport, etc.; the assistance of the medical, electrical, chemical and other special auxiliary services attached to the department would be directly available to all branches of the labour inspection force; and these auxiliary services would then cover the entire field of occupational accident prevention. The inspection service should be responsible for the protection of all workers employed on ships, in so far as their work is not connected with the fitting out or navigation of the vessel. The exact scope of its work must be determined by local conditions and experience. The inspection service should be autonomous, although under the authority of the chief of the industrial inspection service. I t should be entitled, on its own responsibility, to consult and call on the services of shipping registration companies, technical associations, semi-official institutions, committees, etc. In the larger ports the inspectorate should be under the orders of an official with a sufficient technical and scientific training to enable him to deal with any problem that may arise. He must 1 2 See below, p. 120. On this subject, see also "Inspection of Stevedoring Undertakings", by C. MÖRZER BRUYNS, in Industrial Safety Survey, Vol. XI, No. 2, Mar.-Apr. 1935, pp. 37-40. 98 SAFETY IN DOCK WORK have a thorough knowledge of all the national and foreign laws and treaties affecting his work and must himself be competent to draft legislation and orders. He must be tactful in his dealings with employers and workers, whether individually or through their associations, and he must have a thorough knowledge of working conditions in his own district and elsewhere. He must be fully acquainted with the economic problems with which the inspection service is increasingly being brought into contact. He must be able to speak for the service on technical subjects, labour questions, etc., at committee meetings and to represent his country at international conferences. He must be able to maintain the necessary relations with foreign authorities and other parties concerned. In addition to his native language, he should have a sound knowledge of the languages chiefly used in international dealings. The chief inspector in a large seaport must have at his disposal not only the necessary administrative staff but also a sufficient number of inspectors to ensure efficiency. Some of these inspectors must be capable of calculating, in so far as this is possible without complicated mathematics, the strength and stresses of hoisting gear and other appliances on land and on board ship. They must be able to judge sketch plans—a very important matter in the case of new structures—and must have a wide knowledge of materials. In short, their scientific training must be sufficient to enable them to carry out all the duties entrusted to them and to submit detailed reports on their work, labour conditions and any special subjects on which they are consulted. Since it is essential for them to remain in close connection with working conditions, they should exchange duties periodically with the officials mentioned below. The remaining inspectors must have sufficient technical knowledge to understand all the problems connected with the loading and unloading of ships and must, like the others, be able to get on with the workers and their foremen. They should be specially responsible for supervising hours of work and must be able to draft simple reports. All the officials must know at least one of the chief languages in addition to their own. As cases frequently arise in connection with the loading and unloading of ships (breaking of materials, dangerous methods of work, excessive hours of work, etc.) in which immediate action and decisions must be taken because of the short stay of the vessels in port, the inspectors, or at least some of them, should have a telephone at their disposal. INSPECTION AND SUPERVISION 99 If many ships have to be inspected when moored away from the quay, the inspectors should have one or more launches at their disposal. When small ports are situated near larger ones, the former can be supervised by the inspection service of the latter. Otherwise, or when this arrangement is considered undesirable, the inspection duties in the small port, which will occupy only a very few hours daily, may be carried out by an official of some other service who is resident there and is acquainted with shipping matters. This can be considered a subsidiary appointment for which some slight extra remuneration may be paid! In this capacity the official will be attached to the inspection service of a larger seaport. § 2.—Supervision Dock work is fundamentally different from work in a factory for the following reasons among others: (a) The arrangements are different on almost every vessel and as the ship often stays only a few hours in port, the dockers have to work practically every day, and sometimes twice a day, with different gear and under different circumstances. (b) The ship may arrive at any hour of the day, and the work has to begin as soon as possible to save time. (c) In order to save time the stevedore has to hurry his work as much as possible, and often too little time is given to matters of safety. Quickness is wanted by the owners because the ship represents a big capital item and has to be used for transport as continuously as possible; the time spent in a port is often considered as lost time. In view of all this, it is clear that the supervisors who are to be responsible for the safety of the work must be carefully selected from persons competent to direct loading and unloading. Moreover, they should be capable of calculating stresses, judging difficult situations and possibilities, and should realise that it is in the interest of all concerned to avoid accidents, not only from a social but also from an economic point of view. It is a responsibility of the employers to choose the right supervisors and foremen. As there is a lack of such persons, owing to the fact that hardly anywhere has anything been done to train them for their difficult and complicated task, the creation of an educational system for the persons from whom supervisors are selected is a very urgent necessity. CHAPTER XV DISEASES, TOXIC AND OTHER HARMFUL SUBSTANCES TO WHICH DOCK WORKERS ARE EXPOSED § 1.—General Remarks Dock workers are exposed to several occupational diseases and to toxic and other harmful substances and, though this is not the place for a detailed discussion of them, the frequent injuries and considerable loss of time for which they are responsible justify some mention of them. The dangers present during loading and unloading are different from those during the voyage and may therefore be dealt with separately. § 2.—Diseases (a) Anthrax (from Hides, Wool, Hair, etc.) Hides, wool and other products of animal origin are transported from places all over the world to seaports and discharged from the sea-going ships into lighters, sheds, wagons and trucks. The danger to which transport workers are exposed by the very resistant anthrax spores is obvious. In an article on this subject in Reichsarbeitsblatt, 1932, No. 11, Part III, Dr. A. B R A N D T concludes from the statistics of anthrax infections at Hamburg in the years 1910-1914 and 1925-1931, that it is the dockers and warehouse workers who are most exposed to this serious risk. The infection has rather frequently (in about 25 per cent, of all cases) a fatal termination. The following table gives the cases of anthrax infection in Hamburg for the years 1930-1936: Year 1930 1931 1932 1933) 1934/ 1935 1936Total Number of anthrax infections 15 10 3 „ y 7 47 3 DISEASES, HARMFUL SUBSTANCES 101 (b) Diseases of the Respiratory Organs, Generally Caused by Dust . (from Various Kinds of Ore, Fertilisers, etc.) Some cases are known of dock workers who have died of pneumonia after discharging certain kinds of ore. Ground basic slag has caused numerous casualties in the course of some years. In 1936, for instance, nine dock workers who had discharged this fertiliser from a sea-going ship died of pneumonia and several others were ill. (c) Inflammation of the Mucous Membranes of the Nose and Throat (from Bone Dust, Dry Clay, Cement, Certain Ores, Fertilisers) The throat may become dry and red and the workers are entirely or partly prevented from breathing through the nose. (d) Skin Burns, Eye Inflammation, (from Pitch, etc.) Conjunctivitis Handling these substances is one of the most disagreeable jobs that a docker has to perform, at least in certain circumstances. With pitch of certain compositions severe conjunctivitis may ensue and there may be rather painful inflammation of the skin. (e) Skin Injuries, Skin Burns, Eye Burns (from Corrosives, etc., such as Soda Ash, Caustic Soda, Acetic Acid, some Fertilisers, Whale Oil Residue) The dangers of acid and alkaline substances are well known, and the hands and necks of dock labourers are often exposed to them. It is essential not to employ any person on this work who is already suffering from skin injuries. Sulphur dust may cause slight eye burns. In some circumstances acrolein is formed in whale oil residue, which may cause injuries to the mucous membranes, conjunctivitis, etc. § 3.—Toxic Substances (a) Phosphoretted Hydrogen (Impurities in Ferro-Silicon with a Certain Percentage of Silicon) Phosphoretted hydrogen may be given off by ferro-silicon and similar substances containing a certain percentage of silicon, especially through the action of water. Although up to now the health of dock workers has not suffered much from this risk it should not be overlooked, for there is always a possibility that the workers will go to sleep in the neighbourhood of such substances. Slight inconveniences have in fact been experienced during loading 102 SAFETY IN DOCK WORK and unloading. During sea and inland waterway transport, however, very many serious accidents have occurred, and several seamen and lightermen, together with members of their families and passengers, have died through breathing phosphoretted hydrogen. Having regard to the close connection between stevedoring and water transport, it may be of interest to reproduce the most recent regulations on this subject, those of the former Central Committee for Navigation on the Rhine (members: Belgium, France, Germany, Great Britain, Italy, Netherlands, Switzerland) 1 : Packing and Transport of Poisonous Substances The following poisonous" substances shall only be transported on the Rhine subject to the following conditions: I II Ill IV. Ferro-silicon and mangano-silicon, with a silicon content of more than 30 and less than 90 per cent, and alloys of ferro-silicon containing admixtures of other substances amounting in all to over 30 and less t h a n 90 per cent., including silicon and excluding iron. (1) The substances shall be packed in strong wooden or metal containers. (2) The containers shall be provided with a clear and durable inscription "Ferro-silicon", "Mangano-silicon" or "Alloy of Ferro-silicon", with the addition "Poison, T o be kept dry. Do not overturn." The inscription shall be affixed in the languages of the countries through which the ship will pass. T h e inscription"may mention the silicon content. The addition of a trade n a m e shall also be allowed. (3) The substances shall not be transported by vessels carrying passengers. (4) As far as possible, the substance and the packing shall be loaded and kept in a d r y condition. (5) The containers shall only be stowed in the following manner: (o) on deck: protected against d a m p ; (b) in the hold; in all holds if they are separated from the living accommodation by a gas-tight cofferdam; if there is no cofferdam, in the holds not adjacent to the living accommodation provided t h a t these holds are separated from the living accommodation by a tight metal bulkhead. All holds and living accommodation shall be continuously ventilated as well as possible. (6) On board vessels transporting the substances mentioned under IV, there shall be adequate means of ascertaining in a simple way whether phosphoretted hydrogen (PH3) has filtered into the living accommodation and whether the cofferdams are sufficiently airtight. Directions for using these means shall be kept on board. 1 Regulations for the transport of corrosive and poisonous substances on the Rhine. Last amended 13 Nov. 1936 with effect from 1 Apr. 1937. (Commission Centrale pour la Navigation du Rhin, Protocoles des Séances 1934, 1ère session avril, p , 59, 1936, 2me session - novembre, p. 40.) DISEASES, HARMFUL SUBSTANCES 103 (b) Carbon Monoxide (CO) (Incomplete Combustion, e.g. inj the Mess Rooms of Floating Cranes, when Unloading Fruit from Stove-Heated Holds, etc.) Some dockers who spent their break in the mess room of a floating crane were affected by carbon monoxide from the stove. Some dockers who were unloading bananas from the hold of a motor ship, in which several small stoves had been burning to keep the bananas at the right temperature, became ill and one of them lost consciousness. The symptoms were: headache, weakness in the legs, loss of control. (c) Poisoning by Carbon Dioxide (Heating or Refrigerating of Cargo) Sometimes, if the cargo has been on board for a long time or has become more or less heated, fermentation may have started and it has often proved dangerous to enter the hold before it has been well ventilated. On the other = hand, when perishable cargo is refrigerated by means of so-called "dry ice" (solidified carbon dioxide) the hold may become partly or entirely filled with carbon dioxide gas; and unless special precautions are taken the dockers unloading the cargo will be exposed to a very serious danger of asphyxiation. An accident of this kind occurred in 1937 in New York where four dockers died and two others, together with a mate and a deck hand, were removed unconscious to a hospital after entering the hold of a fruit ship in which dry ice had been used as a refrigerant. (d) Vapours from the Holds, etc., of Ships that have Carried Liquid Cargo, such as Gasoline or Benzol It is well known that the vapours from petroleum products and benzol are very dangerous; they may cause intoxication, and if their flash point is below, a certain temperature (usually taken as 65.6°C) they may explode. (e) Emanations from Ship's Paint in Spaces that have been Closed for a Long Time or are Difficult to Ventilate, e.g. Double Bottoms, Tanks The dangers mentioned under (d) and (e) have been well explored. In addition to testing for gas by sampling or the use of a gas detector, adequate ventilation is an important precaution. " In spite of precautions, however, accidents still occur and the utmost prudence should always be displayed. 104 SAFETY IN DOCK WORK (f) Produce of Vegetable Origin (Stomach Disorders) Cases are known of illness among transport workers due to eating kratok, rangoon, calabar or castor beans, bitter peach and apricot kernels and bitter almonds (stomach and intestinal disorders, collapse). The highly dangerous prussic acid may form in bitter kernels. Twenty castor beans may prove fatal to an adult; two children of a lighterman died after eating some of these beans. Dried copra may give off irrespirable gases, especially at tropical temperatures, and several casualties among coolies are known to have been due t o this cause. Turpentine leaking from barrels or drums may give off dangerous vapours which cause giddiness and loss of consciousness; it is especially dangerous when a man feels ill and tries to leave the hold by climbing up the hold ladder. Severe injuries have resulted from falls from ladders in such circumstances. A tallyman who happened to get a very slight quantity of nicotine in his mouth when sampling the cargo became dangerously ill. (g) Lead (Ethyl Fluid) a Up to now no accidents have occurred on board ship with this cargo, but, as it is being conveyed in steadily increasing quantities, there should be adequate supervision of the precautions taken during loading and unloading. In the United States and in the Netherlands, the precautions are as follows: (1) Special inspection of the gear before unloading; (2) Use of a tray for unloading; (3) As an extra precaution, the tray is enclosed in a strong net of steel or manilla rope fixed on the runner hook ; (4) Exercise of the utmost care in loading or unloading. It should be borne in mind that these dangerous goods need not always be feared, the degree of risk depending on the circumstances. T h e very disagreeable consequences of working with pitch, for instance, depend to a large extent on the composition of the pitch b u t perhaps to a still larger extent on the sun and the wind. For d u s t and gases in general, ventilation and the degree of concentration are very important factors. If the goods here considered are packed in drums, barrels, casks, bags, sacks, etc., their condition is a determining factor, and the danger may be reduced or even be absent entirely when the containers are in good condition. DISEASES, HARMFUL SUBSTANCES 105 On the other hand, the manner in which the goods are discharged or loaded, and the fixed arrangements on board (for instance, small coamings, sharp edges, etc.) may easily spoil the condition of bags and sacks. For example, on an'old ship loaded with nitrate of lime in special double jute and paper bags, no less than 52 bags were damaged and their contents were strewn all over the hold during hoisting. The workers had a very disagreeable time with this cargo, which was not at all the case on another ship from which a similar cargo was discharged but where the fixed arrangements on board were modern and better. Paper bags should be kept dry : wet spots may cause holes and tears. Fig. 94 It would take too long to indicate in detail what should be done when handling every dangerous commodity in every . conceivable circumstance, but the following general precautions against these dangers may be taken, separately or in combination: (1) Allow short interruptions of work to enable the workmen to breathe fresh air. 106 SAFETY IN DOCK WORK (2) Work in two shifts, relieving each other every half hour. (3) Use gas masks, respirators, wet sponges, coverings for face and neck, gloves; fig. 94 shows the unloading of ground basic slag. (4) Rub bare parts of skin with talcum powder, vaseline clay, etc. (5) Do not load or unload during sunshine or wind but only at night. (6) Handle goods very carefully and never throw bags and sacks below. (7) Ventilate holds and tanks as well as possible. (8) Never rest or sleep in a closed room, especially when a coal stove is burning. (9) Do not enter holds or compartments without a safety belt unless it has been ascertained that no danger exists. (10) Do not enter silo bins in grain elevators without taking the same precautions. (11) Never use fire and never smoke in the neighbourhood of flammable or explosive vapours and goods. (12) Never eat or drink any of the cargo. (13) Always keep a first-aid box ready for immediate use; when there is a risk of suffocation (fire on board, working in double bottom or tanks, unloading of goods which have been on fire) an oxygen apparatus should be kept ready for use. (14) When handling fruit such as bananas, be careful to keep clear of snakes and other pests that may be hidden in the fruit. Fig. 95 (15) Never touch dead rats with bare or even covered hands, but use a pair of tongs. DISEASES, HARMFUL SUBSTANCES 107 (16) Wash thoroughly with soap after finishing the work. (17) Ask the doctor's advice immediately a pustule appears, especially after working with hides, wools and bones. (18) Give the workmen who work in dust an allowance of milk or other suitable beverage in order to protect the mucous membranes of the throat. Milk, moreover, tends to promote physical well-being in general, and people who are fit are less liable to disease than those who are not. These beverages, however, are by no means an antidote; other health measures must not be neglected. Fig. 95 illustrates the precautions mentioned under 3 for dockers entering a hold to sweep up whale-oil residue. §4.—Suffocation and Burns Other suffocations and burns than those due to the causes mentioned in §2 and §3 have often occurred, for instance owing to: (a) Fire (e.g. spontaneous ignition of celluloid, copra, films, matches, sulphur, cotton, ignition of flammable vapours); (b) Explosions (e.g. of metal containers of compressed gases, explosives, methane gas given off by certain "gassy" coals, etc.); (c) Drowning (special precautions should be taken against drowning in oil tanks on board cargo ships) ; (d) Gases escaping from refrigerating installations and cold storage plant; (e) Bites of insects, snakes and pests in general. §5.—The Carrying of Heavy Weights The carrying of heavy weights has also resulted in physical injuries to dock workers and it would therefore be useful to have an internationally recognised maximum weight of load to be handled manually. However, the progress of mechanisation of dock labour has eliminated a great part of this work. CHAPTER XVI PSYCHOTECHNICAL APTITUDE TESTS In several industries psychotechnical research has become a commonplace, and the value of such research is by now generally recognised, not only for promoting efficiency, but also, and not least, for preventing accidents. Dock work has become gradually more and more mechanised; its tempo has been very much accelerated and it has been found that for supervisors, crane and truck drivers, winch drivers, signallers, etc., an initial psychotechnical test is very useful. It seems even not improbable that in future the aptitude of ordinary dockers for their work will also be subjected to a test of this kind. Some years ago the Scheepvaart-Vereeniging Zuid (Shipping Federation) at Rotterdam established a psychotechnical laboratory under the superintendence of a specialised medical practitioner. Fig. 96 PSYCHOTECHNICAIy APTITUDE TESTS 109 Fig. 96 shows an apparatus for testing crane drivers. A load is fastened to 2 runners. The two horizontal lines represent upper and 'tweendecks with coamings; the long vertical line, the outside of a sea-going ship with railing; this ship is being loaded from a lighter, which is represented at the left of the screen. Fig. 97 Fig. 97 shows several appliances for testing winchmen. It would be outside the scope of the present monograph to treat this question in further detail and it may suffice here to bring it to the notice of those interested in the safety of dockers. PART II Legislation concerning Dock Work INTRODUCTORY NOTE Safety in dock work is a matter that has received much attention from rule-making authorities. Several countries have issued national or regional regulations in this matter and there are also a number of voluntary safety codes in operation. International regulations are embodied in the Convention (No. 32) concerning the protection against accidents of workers employed in the loading and unloading of ships, adopted by the International Labour Conference in 1932, and the Convention (No. 27) concerning the marking of the weight oh heavy packages transported by vessels, adopted by the International Labour Conference in 1929. The present Part gives the text of these Conventions, the relevant statutory regulations of Australia, Chile, Germany, Great Britain, Portugal and Sweden, and voluntary safety codes in operation in the United States. These texts may be considered to provide good examplesof the rules that have been found necessary for the prevention of accidents to dock workers. INTERNATIONAL Convention (No. 32) concerning the Protection against Accidents of Workers Employed in Loading or Unloading Ships (Revised 1932) The General Conference of the International Labour Organisation of the League of Nations, Having been convened at Geneva by the Governing Bod)' of the International Labour Office, and having met in its Sixteenth Session on 12 April 1932, and Having decided upon the adoption of certain proposals with reg*ard to the partial revision of the Convention concerning the protection against accidents of workers employed in loading or unloading ships adopted by the Conference at its Twelfth Session, which is the fourth item on the agenda of the Session, and Considering that these proposals must take the form of a Draft International Convention, adopts, this twenty-seventh day of April of the year one thousand nine hundred and thirty-two, the following Draft Convention for ratification by the Members of the International Labour Organisation, in accordance with the provisions of Part XIII of the Treaty of Versailles and of the corresponding Parts of the other Treaties of Peace: ARTICLE 1 For the purpose of this Convention: (1) The term "processes" means and includes all or any part of the work performed on shore or on board ship of loading or unloading any ship whether engaged in maritime or inland navigation, excluding ships of war, in, on, or at any maritime or inland port, harbour, dock, wharf, quay or similar place at which such work is carried on; and (2) The term "worker" means any person employed in the processes. ARTICLE 2 Any regular approach over a dock, wharf, quay or similar premises which workers have to use for going to or from a working place at which the processes are carried on and every such working place on shore shall be maintained with due regard to the safety of the workers using them. LEGISLATION: INTERNATIONAL 113 In particular, (1) Every said working place on shore and any dangerous parts of any said approach thereto from the nearest highway shall be safely and efficiently lighted; (2) Wharves and quays shall be kept sufficiently clear of goods to maintain a clear passage to the means of access referred to in Article 3; (3) Where any space is left along the edge of any wharf or quay, it shall be at least 3 feet (90 cm) wide and clear of all obstructions other than fixed structures, plant and appliances in use; and (4) So far as is practicable having regard to the traffic and working, (a) All dangerous parts of the said approaches and working places (e.g. dangerous breaks, corners and edges) shall be adequately fenced to a height of not less than 2 feet 6 inches (75 cm); (b) Dangerous footways over bridges, caissons and dock gates shall be fenced to a height of not less than 2 feet 6 inches (75 cm) on each side and the said fencing shall be continued at both ends' to a sufficient distance which shall not be required to exceed 5 yards (4.5 m). (5) The measurement requirements of paragraph (4) of this Article shall be deemed to be complied with, in respect of appliances in use at the date of the ratification of this Convention, if the actual measurements are not more than 10 per cent, less than the measurements specified in the said paragraph (4). ARTICLE 3 (1) When a ship is lying alongside a quay or some other vessel for the purpose of the processes, there shall be safe means of access for the use of the workers at such times as they have to pass to or from the ship, unless the conditions are such that they would not be exposed to undue risk if no special appliance were provided. (2) The said means of access shall be: (a) Where reasonably practicable, the ship's accommodation ladder, a gangway or a similar construction ; (b) In other cases a ladder. (3) The appliances specified in paragraph (2) (a) of this Article shall be at least 22 inches (55 cm) wide, properly secured to prevent their displacement, not inclined at too steep an angle, constructed of materials of good quality and in good condition, and securely fenced throughout to a clear height of not less than 2 feet 9 inches (82 cm) on both sides, or in the case of the ship's accommodation ladder securely fenced to the same height on one side, provided that the other side is properly protected by the ship's side. 114 SAFETY IN DOCK WORK Provided t h a t any appliances as aforesaid in use at the date of the ratification of this Convention shall be allowed to remain in use: (a) Until the fencing is renewed if they are fenced on both sides t o a clear height of at least 2 feet 8 inches (80 cm) ; (6) For two years from the date of ratification if they are fenced on both sides to a clear height of at least 2 feet 6 inches (75 cm). (4) The ladders specified in paragraph (2) (b) of this Article shall be of adequate length and strength, and properly secured. (5) (a) Exceptions to the provisions of this Article may be allowed by the competent authorities when they are satisfied that the appliances specified in the Article are not required for the safety of the workers. (b) The provisions of this Article shall not apply to cargo stages or cargo gangways when exclusively used for the processes. (6) Workers shall not use, or be required to use, any other means of access than the means specified or allowed by this Article. ARTICLE; 4 When the workers have to proceed to or from a ship by water for the processes, appropriate measures shall be prescribed to ensure their safe transport, including the conditions to be complied with by the vessels used for this purpose. ARTICLE 5 (1) When the workers have to carry on the processes in a hold the depth of which from the level of the deck to the bottom of the hold exceeds 5 feet (1.5 m), there shall be safe means of access from the deck to the hold for their use. (2) The said means of access shall ordinarily be by ladder, which shall not be deemed to be safe unless it complies with the following conditions: • (a) Provides foothold of a depth, including any space behind the ladder, of not less than 4 ^ inches (11.5 cm) for a width of not less than 10 inches (25 cm) and a firm handhold ; (b) Is not recessed under the deck more than is reasonably necessary to keep it clear of the hatchway; (c) Is continued by and is in line with arrangements for secure handhold and foothold on the coamings (e.g. cleats or cups) ; (d) The said arrangements on the coamings provide foothold of a depth, including any space behind the said arrangements, of not less than 4J^ inches (11.5 cm) for a width of not less than 10 inches (25 cm) ; (e) If separate ladders are provided between the lower decks, the said ladders are as far as practicable in line with the ladder from the top deck. LEGISLATION: INTERNATIONAL 115 Where, however, owing to the construction of the ship, the provision of a ladder would not be reasonably practicable, it shall be open to the competent authorities to allow other means of access, provided that they comply with the conditions laid down in this Article for ladders so far as they are applicable. In the case of ships existing at the date of the ratification of this Convention the measurement requirements of subparagraphs (a) and (d) of this paragraph shall be deemed to be complied with, until the ladders and arrangements are replaced, if the actual measurements are not more than 10 per cent, less than the measurements specified in the said subparagraphs (a) and (d). (3) Sufficient free passage to the means of access shall be left at the coamings. (4) Shaft tunnels shall be equipped with adequate handhold and foothold on both sides. (5) When a ladder is to be used in the hold of a vessel which is not decked it shall be the duty of the contractor undertaking the processes to provide such ladder. It shall be equipped at the top with hooks or with other means for firmly securing it. (6) The workers shall not use, or be required to use, other means of access than the means specified or allowed by this Article. (7) Ships existing at the date of ratification of this Convention shall be exempt from compliance with the measurements in paragraph (2) (a) and (d) and from the provisions of paragraph (4) of this Article for a period not exceeding four years from the date of ratification of this Convention. ARTICLE 6 (1) While the workers are on a ship for the purpose of the processes, every hatchway of a cargo hold accessible to the workers which exceeds 5 feet (1.5 m) in depth from the level of the deck to the bottom of the hold, and which is not protected to a clear height of 2 feet 6 inches (75 cm) by the coamings, shall, when not in use for the passage of goods, coal or other material, either be securely fenced to a height of 3 feet (90 cm) or be securely covered. National laws or regulations shall determine whether the requirements of this paragraph shall be enforced during meal times and other short interruptions of work. (2) Similar measures shall be taken when necessary to protect all other openings in a deck which might be dangerous to the workers. ARTICLE 7 When the processes have to be carried on on a ship, the means of access thereto and all places on board at which the workers are employed or to which they may be required to proceed in the course of their employment shall be efficiently lighted. The means of lighting shall be such as not to endanger the safety of the workers nor to interfere with the navigation of other vessels. 116 SAFETY IN DOCK WORK ARTICLE 8 In order to ensure the safety of the workers when engaged in removing or replacing hatch coverings and beams used for hatch coverings, (1) Hatch' coverings and beams used for hatch coverings shall be maintained in good condition; (2) Hatch coverings shall be fitted with adequate hand grips, having regard to their size and weight,-unless the construction of the hatch or the hatch coverings is of a character rendering the provision of hand grips unnecessary; (3) Beams used for hatch coverings shall have suitable gear for removing and replacing them of such a character as to render it unnecessary for workers to go upon them for the purpose of adjusting such gear; (4) All hatch coverings and fore-and-aft and thwart-ship beams shall, in so far as they are not interchangeable, be kept plainly marked to indicate the deck and hatch to which they belong and their position therein; (5) Hatch coverings shall not be used in the construction of cargo stages or for any other purpose which may expose them to damage. ARTICLE 9 Appropriate measures shall be prescribed to ensure that no hoisting machine, or gear, whether fixed or loose, used in connection therewith, is employed in the processes on shore or on board ship unless it is in a safe working condition. In particular: (1) Before being taken into use, the said machines, fixed gear on board ship accessory thereto as defined by national laws or regulations, and chains and wire ropes used in connection therewith, shall be adequately examined and tested, and the safe working load thereof certified, in the manner prescribed and by a competent person acceptable to the national authorities; (2) After being taken into use, every hoisting machine, whether used on shore or on board ship, and all fixed gear on board ship accessory thereto as defined by national laws or regulations shall be thoroughly examined or inspected as follows: (a) To be thoroughly examined every four years and inspected every twelve months: derricks, goose necks, mast bands, derrick bands, eyebolts, spans and any other fixed gear the dismantling of which is specially difficult; {b) T o be thoroughly examined every twelve months: all hoisting machines (e.g. cranes, winches), blocks, shackles and all other accessory gear not included in (a). All loose gear (e.g. chains, wire ropes, rings, hooks) shall be inspected on each occasion before use unless they have been inspected within the previous three months. LEGISLATION: INTERNATIONAL 117 Chains shall not be shortened by tying knots in them and precautions shall be taken to prevent injury to them from sharp edges. A thimble or loop splice made in any wire .rope shall have at least three'tucks with a whole strand of rope and two tucks with one half of the wires cut out of each strand; provided that this requirement shall not operate to prevent the use of another form of splice which can be shown to be as efficient as the form hereby prescribed. (3) Chains and such similar gear as is specified by national laws or regulations (e.g. hooks, rings, shackles, swivels) shall, unless they have been subjected to such other sufficient treatment as may be prescribed by national laws or regulations, be annealed as follows under the supervision of a competent person acceptable to the national authorities: (a) In the case of chains and the said gear carried on board ship: (i) Half inch (12.5 mm) and smaller chains or gear in general use once at least in every six months; (ii) All other chains or gear (including span chains but excluding bridle chains attached to derricks or masts) in general use once at least in every twelve months; Provided that in the case of such gear used solely on cranes and other hoisting appliances worked by hand, twelve months shall be substituted for six months in subparagraph (i) and two years for twelve months in subparagraph (ii); Provided also that, if the competent authority is of opinion that owing to the size, design, material or infrequency of use of any of the said gear the requirements of this paragraph as to annealing are not necessary for the protection of the workers, it may, by certificate in writing (which it may at its discretion revoke), exempt such gear from the said requirements subject to such conditions as may be specified in the said certificate. (b) In the case of chains and the said gear not carried on board ship: Measures shall be prescribed to secure the annealing of the said chains and gear. (c) In the case of the said chains and gear whether carried on board ship or not, which have been lengthened, altered or repaired by welding, they shall thereupon be tested and reexamined. (4) Such duly authenticated records as will provide sufficient prima facie evidence of the safe condition of the machines and gear concerned shall be kept, on shore or on the ship as the case may be, specifying the safe working load and the dates and results of the tests and examinations referred to in paragraphs (1) and (2) of this Article and of the annealings or other treatment referred to in paragraph (3). 118 SAFETY IN DOCK WORK Such records shall, on the application of any person authorised for the purpose, be produced by the person in charge thereof. (5) The safe working load shall be kept plainly marked on all cranes, derricks and chain slings and on any similar hoisting gear used on board ship as specified by national laws or regulations. The safe working load marked on chain slings shall either be in plain figures or letters upon the chains or upon a tablet or ring of durable material attached securely thereto. (6) All motors, cogwheels, chain and friction gearing, shafting, live electric conductors and steam pipes shall (unless it can be shown that by their position and construction they are equally safe to every worker employed as they would be if securely fenced) be securely fenced so far as is practicable without impeding the safe working of the ship. (7) Cranes and winches shall be provided with such means as will reduce to a minimum the risk of the accidental descent of a load while in process of being lifted or lowered. (8) Appropriate measures shall be taken to prevent exhaust steam from and, so far as practicable, live steam to any crane or winch obscuring any part of the working place at which a worker is employed. (9) Appropriate measures shall be taken to prevent the foot of a derrick being accidentally lifted out óf its socket or support. ARTICLE 10 Only sufficiently competent and reliable persons shall be employed to operate lifting or transporting machinery whether driven by mechanical power or otherwise, or to give signals to a driver of such machinery, or to attend to cargo falls on winch ends or winch drums. ARTICLE 11 (1) No load shall be left suspended from any hoisting machine unless there is a competent person actually in charge of the machine while the load is so left. (2) Appropriate measures shall be prescribed to provide for the employment of a signaller where this is necessary for the safety of the workers. (3) Appropriate measures shall be prescribed with the object of preventing dangerous methods of working in the stacking, unstacking, stowing and unstowing of cargo, or handling in connection therewith. (4) Before work is begun at a hatch the beams thereof shall either be removed or be securely fastened to prevent their displacement. (5) Precautions shall be taken to facilitate the escape of the workers when employed in a hold or on 'tween decks in dealing with coal or other bulk cargo. (6) No stage shall be used in the processes unless it is substantially and firmly constructed, adequately supported and where necessary securely fastened. LEGISLATION : INTERNATION AL 119 No truck shall be used for carrying cargo between ship and shore on a stage so steep as to be unsafe. Stages shall where necessary be treated with suitable material to prevent the workers slipping. (7) When the working space in a hold is confined to the square of the hatch, and except for the purpose of breaking out or making up slings: (a) Hooks shall not be made fast in the bands or fastenings of bales of cotton, wool, cork, gunny-bags, or other similar goods; (b) Can hooks shall not be used for raising or lowering a barrel when, owing to the construction or condition of the barrel or of the hooks, their use is likely to be unsafe. (8) No gear of any description shall be loaded beyond the safe working load save in exceptional cases and then only in so far as may be allowed by national laws or regulations. (9) In the case of shore cranes with varying capacity (e.g. raising and lowering jib with load capacity varying according to the angle) an automatic indicator or a table showing the safe working loads at the corresponding inclinations of the jib shall be provided on the crane. ARTICLE 12 National laws or regulations shall prescribe such precautions as may be deemed necessary to ensure the proper protection of the workers, having regard to the circumstances of each case, when they have to deal with or work in proximity to goods which are in themselves dangerous to life or health by reason either of their inherent nature or of their condition at the time, or work where such goods have been stowed. ARTICLE 13 At docks, wharves, quays and similar places which are in frequent use for the processes, such facilities as having regard to local circumstances shall be prescribed by national laws or regulations shall be available for rapidly securing the rendering of first aid and in serious cases of accident removal to the nearest place of treatment. Sufficient supplies of first-aid equipment shall be kept permanently on the premises in such a condition and in such positions as to be fit and readily accessible for immediate use during working hours. The said supplies shall be in charge of a responsible person or persons, who shall include one or more persons competent to render first aid, and whose services shall also be readily available during working hours. At such docks, wharves, quays and similar places as aforesaid appropriate provision shall also be made for the rescue of immersed workers from drowning. 120 SAFETY IN DOCK WORK ARTICLE 14 Any fencing, gangway, gear, ladder, life-saving means or appliance, light, mark, stage or other thing whatsoever required to be provided under this.Convention shall not be removed or interfered with by any person except when duly authorised or in case of necessity, and if removed shall be restored at the end of the period for which its removal was necessary. ARTICLE 15 It shall be open to each Member to grant exemptions from or exceptions to the provisions of this Convention in respect of any dock, wharf, quay or similar place at which the processes are only occasionally carried on or the traffic is small and confined to small ships, or in respect of certain special ships or special classes of ships or ships below a certain small tonnage, or in cases where as a result of climatic conditions it would be impracticable to require the provisions of this Convention to be carried out. The International Labour Office shall be kept informed of the provisions in virtue of which any exemptions and exceptions as aforesaid are allowed. ARTICLE 16 Except as herein otherwise provided, the provisions of this Convention which affect the construction or permanent equipment of the ship shall apply to ships the building of which is commenced after the date of ratification of the Convention, and to all other ships within four years after that date, provided that in the meantime the said provisions shall be applied so far as reasonable and praticable to such other ships. ARTICLE 17 In order to ensure the due enforcement of any regulations prescribed for t h e protection of the workers against accidents: (1) The regulations shall clearly define the persons or bodies who are to be responsible for compliance with the respective regulations; (2) Provision shall be made for an efficient system of inspection and for penalties for breaches of the regulations; (3) Copies or summaries of the regulations shall be posted up in prominent positions at docks, wharves, quays and similar places which are in frequent use for the processes. ARTICLE 18 Each Member undertakes to enter into reciprocal arrangements on the basis of this Convention with the other Members which have ratified this Convention, including more particularly the mutual recognition of the arrangements made in their respective countries for testing, examining and annealing and of certificates and records relating thereto; LEGISLATION: INTERNATIONAL 121 Provided that, as regards the construction of ships and as regards plant used on ships and the records and other matters to be observed on board under the terms of this Convention, each Member is satisfied that the arrangements adopted by the other Member secure a general standard of safety for the workers equally effective as the standard required under its own laws and regulations ; Provided also that the Governments shall have due regard to the obligations of paragraph (11) of Article 405 of the Treaty of Versailles and of the corresponding Articles of the other Treaties of Peace. ARTICLE 19 The formal ratifications of this Convention under the conditions set forth in Part X I I I of the Treaty of Versailles and in the corresponding Parts of the other Treaties of Peace shall be communicated to the Secretary-General of the League of Nations for registration. ARTICLE 20 This Convention shall be binding only upon those Members whose ratifications have been registered with the Secretariat. It shall come into force twelve months after the date on which the ratifications of two Members of the International Labour Organisation have been registered with the Secretary-General. Thereafter, this Convention shall come into force for any Member twelve months after the date on which its ratification has been registered. ARTICLE 21 As soon as the ratifications of two Members of the International Labour Organisation have been registered with the Secretariat, the Secretary-General of the League of Nations shall so notify all the Members of the International Labour Organisation. He shall likewise notify them of the registration of ratifications which may be communicated subsequently by other Members of the Organisation. ARTICLE 22 A Member which has ratified this Convention may denounce it after the expiration of ten years from the date on which the Convention first comes into force, by an act communicated to the Secretary-General of the League of Nations for registration. Such denunciation shall not take effect until one year after the date on which it is registered with the Secretariat. Each Member which has ratified this Convention and which does not, within the year following the expiration of the period of ten years mentioned in the preceding paragraph, exercise the right of denunciation provided for in this Article, will be bound for another period of five years and, thereafter, may denounce this Convention at the expiration of each period of five years under the terms provided for in this Article. 122 SAFETY, IN DOCK WORK ARTICLE 23 At the expiration of each period of ten years after the coming into force of this Convention, the Governing Body of the International Labour Office shall present to the General Conference a report on the working of this Convention and shall consider the desirability of 'placing on the agenda of the Conference the question of its revision in whole or in part. ARTICLE 24 Should the Conference adopt a new Convention revising this Convention in whole or in part, the ratification by a Member of the new revising Convention shall ipso jure involve denunciation of this Convention without any requirement of delay, notwithstanding the provisions of Article 22 above, if and when the new revising Convention shall have come into force. As from the date of the coming into force of the new revising' Convention, the present Convention shall cease to be open to ratification by the Members. Nevertheless, this Convention shall remain in force in its actual form and content for those Members which have ratified it but have not ratified the revising Convention. ARTICLE 25 The French and English texts of this Convention shall both be authentic. Convention (No. 27) concerning t h e Marking of t h e Weight on Heavy Packages Transported by Vessels The General Conference of the International Labour Organisation of the League of Nations, Having been convened at Geneva by the Governing Body of the International Labour Office, and having met in its Twelfth Session on 30 May 1929, and Having decided upon the adoption of certain proposals with regard to the marking of the weight on heavy packages transported by vessels, which is included in the first item of the Agenda of the Session, and Having determined that these proposals shall take the form of a draft international convention, adopts, this twenty-first day of June of the year one thousand nine hundred and twenty-nine, the following Draft Convention for ratification by the Members of the International Labour Organisation, in accordance with the provisions of Part X I I I of the Treaty of Versailles and of the corresponding Parts of the other Treaties of Peace : LEGISLATION: INTERNATIONAL 123 ARTICLE 1 Any package or object of one thousand kilograms (one metric ton) or more gross weight consigned within the territory of any Member which ratifies this Convention for transport by sea or inland waterway shall have had its gross weight plainly and durably marked upon it on the outside before it is loaded on a ship or vessel. In exceptional cases where it is difficult to determine the exact weight, national laws or regulations may allow an approximate weight to be marked. The obligation to see that this requirement is observed shall rest solely upon the Government of the country from which the package or object is consigned, and not on the Government of a country through which it passes on the way to its destination. It shall be left to national laws or regulations to determine whether the obligation for having the weight marked as aforesaid shall fall on the consignor or on some other person or body. ARTICLE 2 The formal ratifications of this Convention under the conditions set forth in Part X I I I of the Treaty of Versailles and in the corresponding Parts of the other Treaties of Peace shall be communicated to the Secretary-General of the League of Nations for registration. ARTICLE 3 This Convention shall be binding only upon those Members whose ratifications have been registered with the Secretariat. It shall come into force twelve months after the date on which the ratifications of two Members of the International Labour Organisation have been registered with the Secretary-General. Thereafter, this Convention shall come into force for any Member twelve months after the date on which its ratification has been registered. ARTICLE 4 As soon as the ratifications of two Members of the International Labour Organisation have been registered with the Secretariat, the Secretary-General of the League of Nations shall so notify all the Members of the International Labour Organisation. He shall likewise notify them of the registration of ratifications which may be communicated subsequently by other Members of the Organisation. ARTICLE 5 A Member which has ratified this Convention may denounce it after the expiration of ten years from the date on which the Convention first comes into force, by an Act communicated to the Secretary-General of the League of Nations for registration. Such denunciation shall not take effect until one year after the date on which it is registered with the Secretariat. 124 SAFETY IN DOCK WORK Each Member which has ratified this Convention and which does not, within the year following the expiration of the period of ten years mentioned in the preceding paragraph, exercise the right of denunciation provided for in this Article, will be bound for another period of ten years and, thereafter, may denounce this Convention at the expiration of each period of ten years under the terms provided for in this Article. ARTICLE 6 At the expiration of each period of ten years after the coming into force of this Convention, the Governing Body of the International Labour Office shall present to the General Conference a report on the working of this Convention and shall consider the desirability of placing on the Agenda of the Conference the question of its revision in whole or in part. ARTICLE 7 Should the Conference adopt a new Convention revising this Convention in whole or in part, the ratification by a Member of the new revising Convention shall ipso jure involve denunciation of this Convention without any requirement of delay, notwithstanding the provisions of Article 5 above, if and when the new revising Convention shall have come into force. As from the date of the coming into force of the new revising Convention, the present Convention shall cease to be open to ratification by the Members. Nevertheless, this Convention shall remain in force in its actual form and content for those Members which have ratified it but have not ratified the revising Convention. ARTICLE 8 The French and English texts of this Convention shall both be authentic. AUSTRALIA Navigation (Loading and Unloading) Regulations. Dated 16 July 19411 1. These Regulations m a y b e cited as the Navigation (Loading and Unloading) Regulations. 2. These Regulations shall come into operation on the first day of September 1941. 3. The Navigation (Loading and Unloading) Regulations, being Statutory Rules, 1928, No. 20, as amended by Statutory Rules, 1928, No. 89; 1930, No. 126; 1931, No. 121; 1932, No. 20; 1936, No. 126 and 1937, No. 40 are repealed. 4. (1) In these Regulations, unless the contrary intention appears— "approved" means approved by the Director; "cargo" includes bunker coal; "cargo gear" includes masts and stays, derricks, booms, gaffs and the like, winches, cranes and other hoisting appliances, mast bands, goosenecks, blocks, gins, standing and running gear of derricks and cranes, and slings, used in connection with the loading or unloading of any ship; "competent person" means a properly qualified person responsible to the master or owner of the ship as regards ship's gear, or to the owner of gear taken on a ship for use in connection with loading or unloading of the ship, but does not include any person to whom the Director has given notice in writing that such person is in his opinion not technically qualified to carry out the tests, examinations or annealing required to carry out the tests, examinations or annealing required by these Regulations; "Inspector" means a person appointed as a Surveyor under the Navigation Act 1912-1935 to survey ships and their equipment; "person-in-charge", in relation to the loading or unloading of any ship, means any person directly or indirectly in control of the persons actually engaged in the process of loading or unloading that ship; "principal port" means the Port of Sydney, Newcastle, Melbourne, Brisbane, Port Adelaide, Fremantle, or Hobart; 1 Statutory Rules, 1941, No. 164. 126 SAFETY IN DOCK WORK "Schedule" means a Schedule to these Regulations; "the Docks Regulations of the United Kingdom" means the Docks Regulations 1934, being Statutory Rules and Orders 1934, No. 279, made under the Imperial Factory and Workshop Act, 1901, and includes any regulations amending or superseding those regulations. (2) Any reference in these Regulations to a form shall be read as a reference to a form in the Second Schedule. 5. These Regulations shall apply to all ships, British and foreign (except ships engaged wholly in the domestic trade of a single State or river and bay ships) loading or unloading cargo at a port in Australia, and to the cargo gear (whether belonging to the ship or not) used in connection with the loading or unloading of cargo into or from those ships. 6. The ships to which these Regulations apply shall be divided into classes as follows: (a) Class 1. Ships registered in Australia, or licensed to engage in the coasting trade, holding a Commonwealth Certificate of Survey or Equipment; (&). Class 2. Other British or foreign ships the cargo gear on which complies with: (i) • (ii) (iii) The provisions of the Docks Regulations of the United Kingdom ; or In the case of ships registered.in a country other than Great Britain or the Commonwealth of Australia, Regulations issued by the Government of that country if they are, in the opinion of the Director, substantially equivalent in their requirements to these Regulations or the Docks Regulations of the United Kingdom ; or In the case of ships belonging to a country in which no Regulations in the matter, have been issued by the Government thereof, Regulations made by any corporation or association for the survey and*registry of ships recognised for that purpose byfthe Government of that country if they are, in the opinion of the Director, substantially equivalent in their requirements to these Regulations or the Docks Regulations of the United Kingdom ; and (c) Class 3. British and foreign ships not included in paragraphs (a) and (b) of this Regulation. 7. (1) Before cargo is loaded on, or unloaded from, Jany ship to which these Regulations apply, the cargo gear to be used shall have been tested, examined andannealed in the prescribed manner. (2) The cargo gear'shall be maintained in safe working condition and records of the gear shall be kept in the prescribed manner. LEGISLATION: AUSTRALIA 127 8. (1) In the case of ships of Class 1 : (a) All derricks, and permanent attachments, including spans, goosenecks and bands to the derrick, mast and deck, used in hoisting or lowering in connection with the loading or unloading of the ship shall be thoroughly examined, tested, and certified by a competent person once at least in every four years, and thoroughly inspected every twelve months; (b) Every winch or hoisting appliance used for loading or unloading cargo shall be tested, examined and certified by a competent person once at least in every four years and shall be thoroughly overhauled annually and examined ; (c) The tests, examinations and inspections required by this subregulation shall be carried out so far as is practicable at a principal port during a survey of the vessel for a Certificate of Survey or of Equipment ; (d) Every certificate issued by a competent person shall be signed by him and countersigned by the owner of the gear or master of the ship, as the case requires; and (e) The testing and examination of cargo gear shall be performed in the manner prescribed in the First Schedule. (2) A Register of Cargo Gear, in accordance with Form L.U.-l shall be provided by the master and kept on board each ship of Class 1, and shall be made available for inspection and endorsement by an Inspector at any time. (3) A certificate in accordance with Form L.U.-2, signed by the competent person who made the test, specifying the proof load, method of applying the proof load, and angle at which each of the derricks was tested, and the safe working load as regards each derrick, winch or other lifting appliance, shall be attached to the ship's Register of Cargo Gear, in which shall also be entered in Part I or Part II of that Register, as the case requires, the dates on which the tests, examinations and inspections were carried out. (4) The safe working load for which each derrick has been tested in the manner prescribed in the First Schedule shall be indicated by conspicuously painting, on the side of the derrick, the words "Safe working load T." (5) The minimum safe working load of any chain, link, ring, hook, shackle, swivel, block, span, stay or tackle comprising the component parts of permanent equipment of any derrick when it is tested shall not be less than the maximum strain imposed upon any such part when the derrick is being proof-tested: Provided that nothing in this Regulation shall prevent a derrick being used at any time with certified cargo gear appropriate to the loading or unloading operations being carried out. (6) All ring bolts for use with permanent derricks, bands on masts or derricks, and derrick heel connections and fittings, when not subject to any prescribed test, shall be of suitable material and 128 SAFETY IN DOCK WORK construction and of strength proportionate to the maximum load which may be imposed on the derrick and designed in accordance with approved engineering standards. (7) Shackles, hooks, chains, links and swivels used to connect a single sheave block (including a gin, heel, and topping lift block) to a derrick shall have a safe working load of at least twice the safe working load of the single sheave block: Provided that this subregulation shall not apply to hooks or swivels which were attached to, and proof-tested with, the single sheave block. (8) The proof test applied to any item of cargo gear to determine a certified safe working load under these Regulations shall not exceed a proof load appropriate to the design and strength of t h e item, in accordance with'the approved engineering standards set out in the publications specified in the Third Schedule. (9) A pulley, gin, block or other similar gear, and a chain, ring, hook, shackle or swivel shall not be used for hoisting or lowering in connection with the loading or unloading of a ship unless a certificate of test and examination in accordance with Form L.U.-3 has been obtained from the manufacturer or other qualified person having the proper testing apparatus t o make the prescribed test. • (10) The certificate specified in the last preceding subregulation shall be kept attached to the ship's Register of Cargo Gear. (11) Cargo gear which cannot be identified in the Register of Cargo Gear shall not be used until the requirements of this regulation are complied with. 9. (1) Except as hereinafter provided, all chains, rings, hooks, shackles and swivels used for hoisting or lowering in connection with the loading or unloading of a ship shall be annealed, and after annealing, carefully examined, by a competent person: (a) In the case of half-inch and smaller chains, rings, hooks, shackles and swivels in general use—once a t least in every six months; and (b) In the case of all other chains, rings, hooks, shackles, and swivels in general use—once at least in every twelve months: Provided t h a t if, on the report of an Inspector, the Deputy Director is of opinion that, owing to the size, design, material or infrequency of use of the gear the requirements of this subregulation as to annealing are not necessary for the protection of the persons employed, he may, by certificate in writing (which he may in his discretion revoke), exempt the gear from the requirements of this subregulation, subject to such conditions (if any) as are specified in the certificate. (2) A Certificate of Annealing in accordance with Form L.U.-4 of any annealing carried out shall be obtained from the annealer. (3) The certificate shall be kept attached to the Register of Cargo Gear, and there shall also be entered in Part III of the Register the dates on which the annealing was carried out. (4) Nothing in this regulation shall apply to bridle chains attached to decks or masts. LEGISLATION: AUSTRALIA 129 (5) The following classes of gear, namely: (a) chains made of malleable cast iron; (b) plate link chains; (c) chains, rings, hooks, shackles and swivels made of steel; (d) pitched chains; (e) rings, hooks, shackles and swivels permanently attached to pitched chains, pulley blocks or weighing machines; (/) hooks and swivels having screw-threaded parts or ball-bearings or other case-hardened parts, are exempted from annealing subject to the conditions that such gear is thoroughly examined by a competent person once at least in every twelve months and that, before the gear is subsequently taken into use, certificates of such examination are attached to the prescribed Register of Cargo Gear. (6) Annealing should, whenever practicable, be carried out in a suitably constructed furnace heated to a temperature between 1100° and 1300° Fahrenheit, or 600° and 700° Centigrade, for a period between 30 and 60 minutes. 10. (1) In the case of a ship of Class 2, the following documents relating to the cargo gear shall be kept on board and shall be available for inspection by an Inspector at any time : (a) a copy of the regulations applicable to the cargo gear of the vessel together with, in the case of regulations in any language other than the English language, an English translation thereof; (6) current certificates of test of the cargo gear made in conformity with those regulations; and (c) a register of the cargo gear, as prescribed by those regulations or in accordance with Form L.U.-l. (2) The Register of Cargo Gear on a ship of Class 2 shall be properly kept, and the various items of cargo gear shall be readily identifiable therefrom. (3) All articles of cargo gear on a ship of Class 2 shall be maintained in accordance with the Regulations applicable thereto and shall be available for inspection by an Inspector at any time. 11. (1) In the case of the first visit to a Commonwealth port of a ship of Class 3, the following requirements shall be complied with : (a) All cargo gear shall have been closely examined by a ship's officer directed by the master to conduct the examination within the preceding six months; and (b) A statement, drawn up and signed by the ship's officer who made the inspection and countersigned by the master, specifying the gear inspected and the safe working load of each derrick and winch 130 SAFETY IN DOCK WORK or hoisting appliance, and declaring that the cargo gear is in good condition and fit for the purpose intended, shall be kept and made available for inspection and endorsement by an Inspector at any principal port at which such vessel loads or unloads cargo. (2) Cargo shall not be loaded or unloaded with the ship's gear at any port in the Commonwealth until such statement has been so prepared, signed and countersigned. (3) In the case of any subsequent visit to a Commonwealth port of a ship of Class 3, the requirements in respect of cargo gear for a ship of Class 1 shall be complied with by the master: Provided that, if the laws of the country to which the ship belongs, relating to cargo gear, are in substantial compliance with these Regulations, the Deputy Director may, on the report of an Inspector t h a t those laws have been complied with, exempt the cargo gear carried on board the ship from any or all of the requirements of these Regulations, as he thinks fit. 12. In the case of cargo gear not belonging to a ship, but stored on shore and taken on board, as required, for use in connection with its loading or unloading, the requirements of Regulation 8 of these Regulations as to examinations, inspection, testing, and certifying of gear, and as to the keeping of a Register of Cargo Gear and the making of entries therein, shall apply, so far as they are applicable, and the owner of any such cargo gear who fails so to comply with those requirements shall be guilty of an offence. 13. All chains attached to derricks or masts, and all rings, hooks, shackles and swivels, shall be inspected by a competent person before each occasion on which they are used in hoisting or lowering, unless the gear has been so inspected within the preceding three months. 14. All chains, rings, hooks, shackles, swivels, derrick or mast fittings used in connection with hoisting or lowering which have been lengthened, renewed, distorted, worn, altered or repaired by welding shall be adequately tested and re-examined by a competent person and a record of the test made and kept in the ship, or gear store on shore, as the case requires, before that gear is again put into use. 15. (1) Wire or other rope shall not be used in hoisting or lowering in connection with loading or unloading cargo unless: (a) It is of suitable quality and free from patent defects; and (6) In the case of wire rope, a certificate in accordance with Form L.U.-5 has been obtained from the manufacturers, and is attached to the Register of Cargo Gear. (2) Every wire rope in general use shall be inspected by a competent person a t least once in every three months: Provided that, after any wire in the rope has been broken, the rope shall be inspected once at least in every month. LEGISLATION: AUSTRALIA 131 16. A copy of the manufacturer's certificate, given in accordance with Form L.U.-3 or Form L.U.-5, as the case requires, and signed by the person who imported or supplied the gear mentioned in the certificate, shall: (a) In the case of cargo gear manufactured outside the State of the Commonwealth in which the gear is . being used; and (b) In the case of a length of wire rope or of chain cut from a full coil or length in respect of which the manufacturer's certificate was given, be deemed, for the purposes of subregulation (10) of Regulation 8 or of paragraph (b) of subregulation (1) of Regulation 15 of these Regulations, to be a certificate specified in that subregulation or paragraph, as the case may be. 17. Wire rope shall not be used for hoisting or lowering in connection with loading or discharging cargo if in any length of eight diameters the total number of visible broken wires exceeds 10 per centum of the total number of wires or the rope shows signs of excessive wear,.corrosion or other defect which, in the opinion of the competent person who inspects it, renders it unfit for the service intended. 18. A thimble or loop splice made in any wire rope shall have not less than three tucks with a whole strand of the rope and not less than two tucks with one half of the wires cut out of each strand and the strands in all cases shall be tucked against the lay of the rope : Provided that this Regulation shall not operate to prevent the use of another form of splice which, in the opinion of a DeputyDirector, is as efficient as that prescribed by this Regulation. 19. A pulley, gin, block, or similar gear shall not be used in hoisting or lowering in connection with loading or unloading, unless the safe working load is clearly stamped upon it: Provided that, in the case of Class 3 ships, gear not so stamped may be used if it has first been inspected and approved by a competent person. 20. Means to enable any person readily to ascertain the safe working load for any chain, wire rope sling, or any appliance in lieu thereof, which he is required to use, shall be provided by marking the safe working load in plain figures or letters upon the sling or appliance or upon a tablet or ring of durable material attached securely thereto, or by a notice so exhibited as to be easily read by any person concerned, clearly setting out the safe working loads for the various sizes of chains and wire ropes and appliances used. 21. (1) A chain which has been shortened by knotting or which contains any knot shall not be used in connection with the loading or unloading of a ship. (2) Chain used for the slinging of heavy loads of iron or steel or other hard material shall be prevented, by the use of suitable packing, from coming into direct contact with any sharp edge of the material. 22. All motors, cog-wheels, chain-gearing, friction-gearing, shafting, and live electric conductors shall (unless it can be shown 132 SAFETY IN DOCK WORK by their position and construction that they are equally as safe to every person employed as they would be if securely fenced) be securely fenced so far as is practicable without impeding the safe working of the ship and without infringing any requirement of the Navigation Act 1912-1935. 23. (1) The master of a ship to which these Regulations apply shall take all necessary steps to ensure that the steam winches or power hoists of any kind used for hoisting or lowering are at all times maintained in a state of thorough repair and working efficiency. (2) The person in charge of the loading or unloading of a ship shall not permit any mechanical hoisting apparatus to be used in connection with that operation unless he is satisfied that the control levers or valve wheels to be used by the driver of the apparatus are efficient and that the doubling clutches, if fitted, are capable of being securely held in position when used. 24. Adequate measures shall be taken by the master or owner to prevent exhaust steam and, so far as is practicable,.live steam to any crane or winch, obscuring any part of the decks, gangways, stages, wharf, or quay where any person is employed in connection with loading or unloading. 25. (1) Cargo gear shall not be rigged, rove or used in such a manner as to involve risk to life or property or to subject the gear to a greater strain than the certified safe working load of the gear. (2) The person in charge of the loading or unloading of a ship shall not permit cargo gear which does not comply with these Regulations to be used by any person engaged in the loading or unloading of t h a t ship. 26. A load shall not be left suspended from a crane, winch, or other lifting appliance unless there is, during the time it is so suspended, a responsible person actually in charge of the lifting appliance. 27. All fore and aft beams and athwart-ship beams used for hatch coverings shall have suitable gear for lifting them on and off, and the gear shall be adjustable without a person going upon any beam for that purpose. 28. Except in cases where all the hatch coverings of a ship are interchangeable, all hatch coverings shall be kept plainly marked to indicate the deck and hatch to which they belong and their position thereon. 29. All fore and aft beams and athwart-ship beams used for hatch coverings and all hatch coverings shall be maintained in good condition. 30. Adequate hand grips shall be provided on all hatch coverings, having regard to their size and weight. 31. (1) Before any loading or unloading work is begun at a hatch on any vessel to which these Regulations apply, all hatch beams shall be removed, unless the hatch is of such size as to permit of the work being carried out without any danger to the workers in the hold from a load striking against any beam left in place. (2) If the cargo is to be loaded or unloaded through more than one hatch and it is necessary to remove the hatch beams, the beams LEGISLATION: AUSTRALIA 135 from the topmost hatch shall be removed first, and the beams from upper hatches shall be removed before those from lower hatches. (3) Where any hatch beam is left in place it shall, before loading or unloading work begins, be securely fastened at each end b y means of stout bolts, with nuts attached, or other suitable fastenings provided for the purpose of preventing, and in such manner as to prevent, its accidental displacement. Penalty, on the person in charge: One hundred pounds. 32. (1) Men engaged in loading or unloading cargo on or from a ship lying alongside a wharf or quay shall be provided with safe means of passage, as prescribed, between the wharf or quay and the ship unless the men may without undue risk pass between the wharf or quay and the ship without the aid of any special appliance. (2) The prescribed means of passage shall be: (a) Where reasonably practicable—the ship's accommodation ladder, or a gangway or similar appliance not less. than twenty-two inches wide, properly secured against displacement, and fenced throughout on each side to a clear height of two feet nine inches by means oí upper and lower rails, taut ropes or chains, or by other equally safe means: Provided that the ship's accommodation ladder, if used, may be fenced on one side only where the other is properly protected by the side of the ship; and (b) In any other case—a ladder of sound material and adequate length, properly secured against displacement. (3) Nothing in this Regulation shall apply to means of access by cargo stages or cargo gangways if other proper means of access. is provided in conformity with these Regulations. 33. Men engaged in loading or unloading cargo on or from a ship lying alongside another ship, who have to pass from one ship to the other, shall be provided by the master of the ship which has. the higher freeboard with safe means of passage from ship to ship unless the men may without undue risk pass from ship to ship without the aid of any special appliance. 34. (1) Where the depth from the level of the top deck to the bottom of any hold exceeds five feet, there shall be maintained safe means of access, as prescribed, from the deck to any hold in which loading or unloading operations are proceeding. (2) The prescribed means of access from the deck to the hold shall be: (a) By ladder, and by ladder, cleats or cups on the coamings complying with the following requirements: (i) the ladders between the lower decks shall be vertically in line with the ladder from the top deck in all cases where, having regard to the SAFETY IN DOCK WORK 134 (ii) (iii) position of the lower hatch or hatches, it is practicable for the ladders so to be in line; each rung of each ladder shall provide a firm handhold and a foothold of a depth (including any space behind the ladder) of four and one half inches for a width of ten inches; the cleats or cups on the coamings shall: (A) Provide a firm handhold and a foothold of a depth (including any space behind the cleats or cups) of not less than four and one half inches for a width of ten inches; (B) Be so constructed as to prevent a man's foot from slipping off at the side ; and (C) Be placed vertically one above the other and in the same line with the ladders to which they afford access; (iv) (v) (vi) ' the cargo shall be stowed sufficiently far from the ladder to leave at each rung of the ladder a firm handhold and a foothold of a depth (including any space behind the ladder) of four and one half inches for a width of ten inches; there shall be a space of sufficient width for a person to pass safely between any winch or other obstruction and the place where the ladder leaves the deck; and a ladder shall not be recessed under the deck more than is reasonably necessary to keep the ladder clear of the hatchway; (b) Where the provision of a ladder on a bulkhead or in a trunk hatchway is not reasonably practicable—by means of cleats or cups complying with the requirements specified in subparagraph (iii) of the last preceding paragraph; or (c) By ladders or steps, separate from any hatchway or sloping from deck to deck if the' ladders or steps are constructed in compliance with the requirements specified in subparagraphs (ii), (iv) and (v) of paragraph (a) of this subregulation. (3) A shaft tunnel shall be equipped with adequate handhold and foothold on each side. (4) In the case of a ship, the keel of which was laid before the first day of September, one thousand nine hundred and forty-one, the requirements of this Regulation shall apply to such extent only as, in the opinion of the Director, the existing structural arrangements of the ship permit. 35. Every person engaged in loading or unloading cargo shall use the means of passage and access prescribed and a person shall not authorise or order any other person to use any means of passage or access other than those so prescribed. LEGISLATION: AUSTRALIA 135 36. (1) An Inspector may order any alteration or repairs to be made to any cargo gear that he considers necessary and the master or owner of the gear shall forthwith have the alteration or repairs carried out. (2) An Inspector may prohibit the use of any cargo gear until the alterations or repairs have been executed to his satisfaction, and a master or owner shall not permit the cargo gear to be used. during the time the prohibition is in force: (3) An Inspector may forbid the use, on a ship to which these Regulations apply, of cargo gear which has not been inspected and certified in accordance with these Regulations. 37. (1) When cargo is being loaded on or unloaded from a ship : (a) the places in the hold and on the decks of the ship where work is being carried on ; (b) the prescribed means of access to those places; and (c) all parts of the ship to which the persons working may be required to proceed in the course of their employment, shall be efficiently lighted, due regard being paid to the safety of the ship and cargo, of all persons on the ship, of the navigation of other vessels and to the by-laws or regulations of any local port authority. Penalty, on the person in charge: Fifty pounds. (2) All openings in decks of holds open for purposes other than loading or unloading operations shall be effectively railed off or lighted while those operations are in progress. Penalty, on the master or owner: Fifty pounds. 38. Where the working space around a hatch is less than two feet wide, such provision shall be made as will enable persons to remove and replace in safety all fore-and-aft beams and thwart-ship beams used for hatch coverings and all hatch coverings. 39. All back stays or preventer backstays, stays, or derrick guys and preventer guys fitted to counteract strain on the masts, sampson posts or derricks shall be kept taut and secure during loading or unloading at any hatch. 40. The person in charge shall take appropriate measures to prevent the foot of a derrick being accidentally lifted out of its socket or support. 41. (1) A deck stage or a cargo stage shall not be used in loading or unloading cargo unless it is substantially and firmly constructed and adequately supported, and, where necessary, securely fastened. (2) A truck shall not be used for carrying cargo between ship and shore on a stage so steeply inclined as to be unsafe. (3) A stage which is slippery shall be made safe, by the use of sand or other material. Penalty, on the person in charge: Fifty pounds. 42. Cargo shall not be loaded or unloaded by a fall or sling at any intermediate deck unless either the hatch on that deck is 136 SAFETY IN DOCK WORK securely covered or a secure landing platform of a width of not less than that of one section of hatch coverings has been placed across it. 43. Hatch plank or other type of covering of hatches upon which men are required to work in the operation of loading or unloading shall be sound, close fitted and secure. 44. The person in charge shall not permit packages or pieces of cargo to be lifted or lowered by the cargo gear unless the slings, or other gear used in lieu of slings, have been made of tested material in accordance with these Regulations. 45. The person in charge shall take proper steps to safeguard men engaged in loading and unloading cargo against injury by the displacement of unsecured cargo or other material. Penalty, on the person in charge: Fifty pounds. 46. Where the working space in a hold is confined to the square of a hatch, a person shall not make any hook fast in the bands or fastenings of a bale of cotton, wool, cork, gunny bags or other similar goods and shall not use a hook for the purpose of raising or lowering a barrel when, owing to the construction or condition of the barrel or the hook, its use is likely to be unsafe. 47. (1) A person shall not, unless duly authorised, or in case of necessity, remove or interfere with any fencing, gangway, gear, ladder, hatch covering, life saving means or appliance, light, mark, stage or any other thing whatsoever, required by these Regulations to be provided. (2) The persons last engaged in work that has necessitated the removal of any of the things mentioned in the last preceding subregulation shall replace them as soon as the work necessitating that removal has been completed. 48. Upon the failure of any person whose duty it is to make any provision prescribed by Regulation 32, 33, 34 or 37 of these Regulations, the employer of the persons engaged in loading or unloading operations shall forthwith cause the prescribed provision to be made. 49. Precautions shall be taken to facilitate the escape in case of emergency of persons engaged in handling coal or other bulk cargo when employed in a hold or in 'tween decks. 50. When, in connection with the loading or unloading of any ship to which these Regulations apply, the safety of any person on or about the ship is imperilled, or any such person is injured as the result of the breakage or failure of any portion of the cargo gear in use a t the time, the master and aíso the person directly responsible for the loading and unloading operations at the time of such breakage or failure shall furnish to the Deputy Director within twenty-four hours of the occurrence, a report in writing giving full particulars thereof. 51. (1) Every package or article of cargo of a gross weight of one metric ton (2,205 lbs.) or over, before being loaded on any ship at a Commonwealth port by means of the cargo gear belonging to or used on the ship, shall have prominently marked upon it, or upon a label securely attached to it, in legible and durable characters of not less than one inch in height, a statement of its approximate gross weight set out in tons and hundredweights: LEGISLATION: AUSTRALIA 137 Provided that in the ease of an article such as a log or baulk of timber, or any other article which, by reason of its nature or place of shipment, it is not practicable to weigh, and which is of a weight of over 2,205 lbs., the gross weight may be stated approximately, within a limit of one ton as "Over 1 but under 2 tons", or as the case may be. (2) Nothing in the last preceding subregulation shall apply to an article which, by reason of its nature or place of shipment, it is neither practicable to weigh nor legibly to mark or label, but in respect of any such article and also in respect of any article which has been loaded outside Australia and which is not marked as specified in subregulation (1) of this Regulation the master of the ship shall arrange for some competent person to give, to the workers actually employed in the loading or unloading of the article by means of the cargo gear, verbal advice as to the approximate weight of each such article about to be so loaded or unloaded. (3) The master, owner and agent of the ship and the shipper of the package or article of cargo shall be jointly and severally liable to penalty in respect of any breach of the requirements of subregulation (1) of this Regulation. (4)1 In any prosecution for a breach of this Regulation a certificate in writing by the keeper or person in charge of any weighing instrument stating that the package or article has, by the person purporting to sign it, been weighed and found to be of the weight stated in the certificate, shall, in any court, be prima facie evidence of the facts so stated. 52. Every steam engine and every boiler connected therewith and every internal combustion engine on a sea-going steamship or motorship registered in Australia or engaged in the coasting trade, while in use in connection with the loading or unloading of the ship, shall be under the supervision of a duly certificated engineer or engine-driver, as the case requires, or, in the case of a ship carrying more than one engineer, of the chief engineer or an engineer instructed by him to undertake that duty: Provided that this requirement shall not apply in regard to winches, windlasses or the like, forming part of the ship's equipment, directly operated by internal combustion engines. Penalty, on the master or owner: Twenty pounds. 53. When loading or unloading operations on a ship are carried out: (a) Under a supervisor or foreman as person-in-charge representing a stevedoring firm ; or (b) Under a responsible officer of the ship as person-in-charge, the person-in-charge shall be responsible for appropriate measures being taken for the protection against accident of the men engaged, and for the effectiveness of the cargo gear for those operations. 54. (1) Where it appears to a Deputy Director, on the report of an Inspector, that these Regulations insufficiently provide for 1 Amendment of 24 July 1942. Statutory Rules .1942, No. 337. 138 SAFETY IN DOCK WORK the safety of persons engaged in loading or unloading any particular ship, he may, by writing under his hand, require the observance of such additional precautions as he considers necessary. (2) Where it appears to a Deputy Director, on the report of an Inspector, t h a t in connection with the loading or unloading of any particular ship full compliance with the requirements of any of these Regulations is unnecessary, and that those requirements may be modified without danger to the persons engaged in loading or unloading, he may, on the written application of the owner, master or agent, by writing under his hand permit of the modification of the requirements to the extent that, in his opinion, the circumstances of the case warrant. 55. (1) Any person who commits a breach of, or fails to comply with, any of these Regulations shall be guilty of an offence. Penalty: Except where otherwise provided: Fifty pounds. (2) Except where a duty or obligation is laid by a Regulation upon some other person (in which case the penalty for breach of the Regulation shall be upon that person), the master, owner and agent of the ship shall be jointly and severally liable to penalty in respect of any breach of the requirements of the Regulation which occurs in relation to the loading or unloading of the ship. THE SCHEDULES THE FIRST SCHEDULE MANNER OF TEST AND EXAMINATION OF CARGO GEAR—REG. 8 (1) Part 1. Derricks and Winches 1. Every derrick and winch, and the whole of the gear accessory thereto (including goosenecks, eye-plates, eye-bolts or other attachments) shall be tested with a proof load which shall exceed the safe working load as follows:— Safe working load Proof load • Up to 20 tons 20 to 50 tons Over 50 tons 25 per cent, in excess 5 tons in excess 10 per cent, in excess 2. The proof load for derrick test shall be applied either (a) by hoisting movable weights; or (b) by means of a spring or hydraulic balance or similar appliance; with the derrick at an angle to the horizontal which shall be stated in the certificate of the test. In the case of (a) after the movable weights have been hoisted the derrick shall be swung as far as possible in both directions. In the case of (b) the proof load shall be applied with the derrick swung as far as practicable first in one direction and then in the other. 3. When derricks are being proof-tested by hoisting movable test weights or by spring or hydraulic balances, or similar appli- 139 LEGISLATION: AUSTRALIA anees, the actual proof load imposed on the derrick, gin and heel blocks may be approximately twice the weight of the movable test weights being hoisted, or the load registered on the spring or hydraulic balance if anchored to the hatch coaming or bulwarks. The loads imposed on derricks by movable test weights, or by dynamometer, shall not be in excess of the intended proof test. 4. After being tested, the derricks with the whole of the gear accessory thereto, and the winches, shall be examined to see whether any part has been injured or permanently deformed by the test. 5. The test and examination shall be made by a competent person and if made: (a) By an employee of a firm or company undertaking such tests and examinations—a responsible officer of the firm or company shall sign the test certificate and shall state, in the space provided in the certificate for that purpose, his position in the firm or company ; (b) By a person working as a principal—that person shall sign the test certificate and shall briefly state, in the space provided in the certificate for that purpose, his ¡technical qualification; or (c) By a ship's officer—that officer shall sign the test certificate and state his rank. Part 2. Loose Gear—Chains, Rings, Hooks, Shackles, Swivels, Gins, Blocks or other Similar Gear Pulleys, 6. Every article of loose gear, whether or not it is an accessory to a derrick or other cargo gear, shall be tested with a proof load at least equal to that shown against the article in the following table and be stamped or marked with the safe working load, as shown : Article of gear Proof load Safe wording load to be stamped on gear Chain, ring, hook, shackle, swivel Twice 1 the safe working load One half of the proof load Single sheave pulley block Four times the safe working load One quarter of the proof load Multiple sheave block with safe working load up to and including 20 tons Twice the safe working load One half of the proof load Multiple sheave block with safe working load over 20 tons up to and including 40 tons 20 tons in excess of the safe working load 20 tons less than the proof load Multiple sheave block with safe working load over 40 tons One and a half times the safe working load Two thirds of proof load 'See Regulation 8 (7). the 140 SAFETY IN DOCK WORK Diagram illu.ztrvt.tiny relative ¿tr-aiizs imposed. Upon the dti~r>ick and Its e<ruipmertt ¡shert lifting a tseigAt of tuo tons, the derrick being at an angle of 45". LEGISLATION: AUSTRALIA 141 7. After being tested, all loose gear shall be examined, the sheaves and the pins of the pulley blocks being removed for the purpose, to see whether any part has been injured or permanently deformed by the test. 8. The test and examination shall be made by a competent person and if made: (a) By an employee of a firm or company undertaking such tests and examinations—a responsible officer of the firm or company shall sign the test certificate and shall state, in the space provided in the certificate for that purpose, his position in the firm or company; and (b) By a person working as a principal—that person shall sign the test certificate and shall briefly state, in the space provided in the certificate for that purpose, his technical . qualification. 9. The following classes of gear are exempted from the requirements set forth in paragraph 6 of this Schedule, provided they have been tested with the following proof loads: Pitched chains with hand-operated pulley blocks and rings, hooks, shackles or swivels permanently attached thereto. One and one half Hand-operated pulley blocks used with times the safe pitched chains and rings, hooks, working load. shackles or swivels permanently attached thereto. (The Second and Third Schedules are omitted here.) Stevedoring Industry Commission,1 Order No. 65. Dated 1 August 1944 1. This Order shall apply to every port in respect of which a Waterside Employment Committee has been appointed. 2. The employer shall in respect of each job provide a proper first-aid kit and the decision by the Commission or the Chairman of a Waterside Employment Committee that a particular first-aid kit is or is not a proper one for the purposes of this Order shall be final. 1 Commonwealth of Australia Gazette, No. 160, 10 Aug. 1944, p. 1918. CHILE General Industrial Hygiene and Safety Regulations, N o . 655. Dated 25 November 1940 • TITLE III. SAFETY IN INDUSTRIAL UNDERTAKINGS Chapter IV. Measures of Hygiene and Safety in Dock Work Loading and Unloading Gear. 48. Cranes, jibs, capstans, winches, etc., and their accessories shall be examined by the compétent authority at the beginning of every job. Cranes shall be marked at a visible place with the maximum permissible load and the maximum lifting capacity according to the inclination of the jib. 49. No load shall remain suspended from the crane if it is not under the effective supervision of a competent person. When materials are being raised or lowered by means of a crane and the driver or the person operating it cannot see the load in every position, one or more watchers or signalmen shall be placed so that they can see the load throughout its travel and give the necessary signals to the crane driver or the person taking his place. There shall be a distinct signal for each operation effected and such that the person to whom it is given can hear or see it easily. If the signal is acoustic it shall be produced by an effective device. Minors under 18 years of age shall not be employed in the operation of hoisting appliances, and the persons responsible for their operation shall possess certificates of competency issued by the Maritime Authority. 50. All ropes or chains used on hoisting appliances shall have such length t h a t when they are fully unwound at least two turns remain on the drum. No rope or chain shall be used on a grooved drum or a grooved pulley if its diameter exceeds the width of the grooves of the drum or the pulley. 51. Slings, ropes, chains, rings, hooks, shackles, etc., used for the raising or lowering of materials shall be tested and shall bear in plain figures and letters an indication of the permissible load. The Protection of Workers during Loading Operations in Ports. 52. All approachways that pass over a dock, ship, landing stage, quay, wharf or other similar place that the workers employ for LEGISLATION: CHILE 143 reaching their workplace shall be made safe for the workers and provided with effective and safe lighting. All dangerous parts of approachways and workplaces such as dangerous quays, bridges, caissons, openings, corners, gangplanks and gangways, shall be provided with suitable railings not less than 0.75 m high. 53. The devices specified above shall have a width of not less than 0.60 m and shall be firmly secured so that they cannot be . displaced. Their slope shall not be very steep and they shall be provided on both sides and throughout their length with a railing not less than 0.80 m high, and, as regards accommodation ladders, with adequate railing of the same height on one side only, provided that the other side is effectively protected by the side of the vessel. 54 55. The planks used in the construction of gangways shall rest on supports and shall be so placed that they cannot slip or move. They shall all be bound together by a cross piece in order to prevent them from separating, and no empty spaces shall be left between them that may cause any danger to the workers. 56. It is prohibited to install gangways at a slope exceeding the normal, or with the surface covered with sawdust, when for any reason persons might slip. It is also prohibited to rest gangways on loose bales or packages consisting of light material, or on bags containing materials liable to escape. 57. It is similarly prohibited to let persons carry sacks, cases or goods exceeding 80 kg in weight. When sacks, cases or goods weigh more than 80 kg, wheeled trucks or hand barrows carried by two men shall be used. 58. When a ladder has to be used in the hold of a ship, the person in charge of the operations shall provide it and it shall have hooks at the top that can be attached to the coamings, or other devices that enable it to. be firmly secured. 59. While the workers are on board ship for the purpose of the work, no hatch or hold shall be left open without a protective device if it is accessible to the Workers and is more than 1.50 m deep; every such hatch that is not protected to a clear height of at least 0.75 m by its coamings shall be enclosed by an adequate railing up to a height of 0.90 m. The hatch covers and also the movable fore-and-aft and thwart-ship beams shall be kept in good condition, and the hatch covers shall have handles suited to their dimensions and weight. The hatch covers and fore-and-aft and thwart-ship beams shall be distinctly marked to indicate the hatch and/or cover to which they belong and their proper position thereon. 60. Before beginning any operation measures shall be taken to see that the hoisting appliances such as jibs, lifts, derricks, shackles, hooks, nets, ropes and slings are in a safe condition. The buckets used for loading and unloading coal shall be in the form of a cylinder or of a truncated cone; the larger diameter shall be 1.20 m and the smaller, 90 cm, and the height 1 m; they shall be made of boards from 3 to 5 mm in thickness and the central shaft and the handle shall be of round iron 38 mm in thickness. 144 " SAFETY IN DOCK WORK They shall have double side flanges on the shaft and a safety catch on the lifting handle. Inspection of Material. 61. All lifting appliances such as cranes, winches, capstans, blocks, shackles and other accessories shall be thoroughly examined at least once a year. Fixed appliances that it is particularly difficult to dismantle, such as derricks, mast bands, derrick bands, eye-bolts, etc., shall be examined at least every two years. 62. Manilla-rope ladders shall have a width of at least 0.5 m and the side ropes, a diameter of at least 38 mm. Transport of Workers. 63. Every boat intended for the transport of workers from shore to ship or vice versa shall carry an indication at a visible place of the number of persons that may be carried. Tugs that are used for this purpose shall be provided with iron railings or stanchions with rings for ropes, at a height of 0.40 m for the first rope and 0.80 m for the second. For work afloat, in addition to the necessary arrangements for preventing workers from falling into the water, there shall be in the immediate vicinity and easily accessible a lifeboat or raft for the use of the personnel and also the necessary number of lifebelts. GERMANY Accident Prevention Regulations of the Marine M u t u a l Accident Insurance Association for Steam and Motor Ships. Effective 1 January 1933 CHAPTER V. LOADING AND UNLOADING EQUIPMENT § 58. Upper-Deck Hatches Upper-deck hatches the coamings of which are less than 80 cm high shall, when they are not used for loading, unloading or other ship's work, be closed or protected by railings, chains, ropes or in some other suitable manner. On new ships laid down since 5 January 1927 the lower edges • of the coamings shall be either rounded or provided with a halfround rim. § 59. Lower-Deck Hatches Open lower-deck hatches shall, when they are not used for loading, unloading or for other purposes of the ship, be closed or protected by railings, chains, ropes or in some other suitable manner in so far as measures are not taken to prevent unauthorised persons from entering the holds. Trimming hatches on the lower decks shall have a device for covering them. They shall be covered when they are no longer in -use. If doors open in the vicinity of hatch openings, open hatches near these doors shall be provided with protective devices that prevent persons from falling in. Openings in vertical walls of bunker, provision and baggage shafts shall be protected by barriers or chains. Bulkheads that are within 60 cm of the coamings of low hatches shall be provided with hand grips or railings. § 61. Hatch Covers, Hatch Beams During loading and unloading the thwart-ship beams shall be either removed from the hatch or properly secured by screw bolts or strong sliding bolts. For removing and replacing the thwartship beams, suitable devices, for example, claws {Hahnenpfoten) shall be provided. The fore-and-aft beams shall also be secured by 146 SAFETY IN DOCK WORK screw bolts during loading and unloading if longitudinal displacement is possible or if they are not sectionalised. Suitable devices shall also be provided for removing and replacing them. Thwartship beams and fore-and-aft beams shall be indicated in an easily comprehensible manner. The hatch covers shall only be used for covering the hatch; their use for other purposes is prohibited. § 62. Hold Ladders, Ladder Cleats Ships laid down since 1 January 1910 shall be provided with iron hold ladders in vertical line and secured at the top and bottom. The rungs of hold ladders and the cleats shall be at a sufficient distance from the bulkhead wall or coamings. Ladders and cleats shall always be kept in a utilisable condition. On ships laid down since 5 January 1927 the fastenings of the hold ladders to the coamings shall be in line with the coamings and the rungs shall, as far as possible, be 30 cm apart. If the hatch coamings are more than 80 cm high, on the outside before the hold ladder a cambered 1 cleat about 70 cm below the top of the coamings shall be provided as access to the hold ladders. Hold ladders that lead to the deck through ventilators shall not be allowed as the sole means of exit from the hold. Special ladders shall be provided for access to decks that are not accessible from the hold ladders. On ships laid down since 1 January 1925, in holds more than 5 m long a second hold ladder shall be built in or a second wooden ladder shall be kept in readiness for immediate use. In this connection care shall be taken that the ladders are so placed that if there are longitudinal bulkheads there is a ladder on each side of the bulkhead. For passing over the tunnel, on both sides of the tunnel a sufficient number of cambered 1 cleats or steps shall be provided. The use of freely suspended loose rope ladders in holds is not allowed. § 63. Testing of Loading Gear The construction of the entire loading gear shall be in conformity with the principles of the German Lloyd drawn up in agreement with the management of the Marine Mutual Accident Insurance Association. A sketch of the tackle together with a plan of the deck and plans of the power plant of the lifting gear shall be submitted in duplicate for examination to the German Lloyd in the case of all new ships and also in the case of the reconstruction of the hoisting gear on ships already sailing. These principles shall apply mutatis mutandis to ships laid down before 5 January 1927 in so far as they do not entail constructional alterations. Concerning the examination of the hoisting gear the Marine Mutual Accident Insurance Association shall.issue a certificate that shall be kept on board together with the sailing permit. 1 As regards existing cleats cambering shall only be required in the case of renewals. . . . . . . LEGISLATION: GERMANY 147 Cranes, derricks and hoisting appliances shall when necessary, but at least once a year, be thoroughly examined; the report shall be entered in the ship's log. Loading tests shall only be carried out under the supervision and responsibility of the shipbuilder or of the ship's officers. Unauthorised persons shall be kept away. The maximum permissible load shall be clearly and durably marked on all hoisting gear, chains and appliances. The permissible load shall in no case be exceeded. § 64. Winches, Cranes The cylinders and steam pipes of steam winches shall, in so far as they are not protected by their position, be provided with devices that protect the operating personnel against burns. Steam escaping into the open shall be so led off that persons cannot be scalded. The driving wheels and driving mechanism of the stearing gear, steam, motor and electric winches, and in so far as is appropriate also of hand winches, as well as of machine tools, shall be provided with sheet-metal guards or other suitable safety devices. On new ships laid down since 5 January 1927 the distance between the winches and the hatch coamings shall be such that work at the winches or the hatch, and if necessary access to the hold ladders, is possible. If on the winches there are couplings and warping ends with projecting bolts, keys, etc., these shall be enclosed in sheet-metal guards. Engaging and disengaging devices shall be so made and installed that their safe operation is ensured. The cotter pins of these devices shall when renewed be provided with brass noses {Fallnasen). The valve handles of the steam winches shall be covered or made of wood so that hands of the operating personnel are protected against burns. All new hand-driven anchor winches, loading winches and sounding machines shall be provided with a crank handle that will not kick back. If when a crane is slewing, the driver's platform passes close by an open hatch or a deck some way below it, a secure railing shall be built round the platform at waist height. Care shall also be taken to provide secure fencing, if when the crane slews near hatch coamings, bulkheads, etc., there is a risk that passing persons will be crushed. At the end of the crane jib there shall be a device that prevents the lifting hook from being drawn over the pulley between the cheeks of the block. § 65. Loading and Unloading In loading and unloading the following provisions shall be observed : 1. Chain slings shall not be shortened by means of knots. 2. For fastening the slings and lifting blocks, no shackle shall be used that has a bigger jaw opening than is absolutely necessary for shackling. 148 SAFETY IN DOCK WORK 3. The use of two fixed derricks with falls shackled together for loading and unloading is only allowed when the eyebolts on the outer guys of the derricks and the outer guys themselves are strong enough. 4. Fixed gaffs shall not be used for loading and unloading unless they are provided with a blocking device. Movable gaffs shall be lowered for attaching the hoisting gear. 5. The use of patent chain links is prohibited for loading and unloading. 6. Rope slings shall not be spliced at more than one place. 7. Holds and passageways that are. not to be entered or that are not a general means of communication shall be barred. 8. In loading and unloading to and from tween decks the tween-deck hatch covers shall be laid on in sufficient numbers. 9. If work is carried on simultaneously in the upper and lower holds, on the open parts of the tween-deck hatch a secure barrier shall be installed by means of planks or nets or in some other suitable manner as protection against the falling in of persons or cargo. 10. Very noisy work in the vicinity of cargo hatches shall be avoided as far as possible during loading and unloading. § 66. Falls Spliced wire rope shall not be used except in emergencies as falls on winches for loading and unloading purposes. Falls and wire ropes shall, as far as possible, be wound at right angles to the axis of the drum and in the same arc as that described in the leading blocks. In this connection care shall be taken that on new ships laid down since 5 January 1927 or on new winches, the winch controls are in conformity with the principles of the German Lloyd for the construction of hoisting gear. Pilot chains shall not be so long that the splicing and shackle catch in the hoisting pulley. This shall be taken into account in erecting winches. A reserve fair shall be carried on every merchant vessel except in the local coasting trade. The ends of the fall shall be properly fastened to the drum. The length of the fall shall be such that in use sufficient turns always remain on the drum. Tying knots in winch chains and falls is not allowed. Accident Prevention Regulations of t h e Wholesale Trade and Warehousing Mutual Accident Insurance Association. Effective 1 April 1934 CHAPTER 10. STEVEDORING Conveyance by Boat § 1. For the equipment and loading of the boats used for the conveyance of insured persons and goods, the official Regulations shall apply as accident prevention Regulations. LEGISLATION: GERMANY 149 Access to the Ship § 2. (1) The means of access to the ship from the shore and from the water shall be installed in conformity with the official Regulations. They shall not be within the swing of the loads. In darkness they shall be adequately lighted. (2) The contractor or his representative (§ 913 of the Federal Insurance Code) shall require the ship's officers to carry out the Regulations. Covering of Holds § 3. (1) Before the commencement of loading and unloading the hatches shall be sufficiently uncovered (opened). (2) If exceptionally a fore-and-aft beam is not removed it shall be specially secured against being pulled out. (3) Hatch covers and hatch beams (fore-and-aft beams, thwart shipbeams, etc.) that are stored on deck shall be so placed and secured that there is no danger to traffic and the stacks cannot fall over. (4) On sea-going ships hatch covers shall not be stacked against the coamings. (5) On inland waterway ships single hatch covers that have been removed for ventilating the holds or for other purposes shall be replaced when darkness sets in. Lighting of Hatches and Deck Openings § 4. (1) In darkness, hatches and deck openings on sea-going ships shall be adequately lighted. (2) Entering inadequately lighted ships' holds is prohibited. Precautions during Breaks in Work § 5. (1) During lengthy breaks and after the termination of loading and unloading, as a rule the hatches shall be tightly closed and the holds covered over. This shall not apply to ships lying ready for loading and unloading. (2) If for special reasons the hatches remain open and if the coamings are less than 80 cm high they shall be protected to prevent persons from falling in. (3) Open lower-deck hatches shall, if access is not prevented by the covers of the upper-deck hatches or if the space around the hatch on the lower deck is not fenced off, be protected or adequately lighted. Hold Ladders § 6. (1) On built-in hold ladders that do not lead to the ship's bottom in one continuous vertical line, conspicuous signs shall be placed at suitable visible places to give warning of the discontinuance of the ladder. (2) During loading, care shall be taken that the built-in hold ladders remain unobstructed. If for any reason they are obstructed, ladders shall be provided for going to and from the holds (ladders ISO SAFETY IN DOCK WORK to be protected in accordance with Chapter 1 § 261). The use of rope ladders is prohibited. (3) Access to ladders shall not be blocked by objects. Ships' Winches § 7. (1) On ships' winches escaping steam shall be so led off that persons are not scalded by steam and condensation water. (2) If the winch driver's field of vision is obscured by steam from leaky stuffing boxes, pipes, etc., this shall be immediately remedied through the ship's officers. Permissible Loading of Hoisting Gear § 8. If the permissible loads for the ship's hoisting gear cannot be ascertained, the person in charge of the work shall determine their carrying capacity through the ship's officers. Winch and Other Falls § 9. In adjusting the hoisting gear the hauling part of the fall or of the pilot rope shall not be loose on the warping end of the winch. Falls and pilot ropes shall be properly fastened on the winch drum or the warping end. It is prohibited to fasten winch falls on the winch drum with ropes alone. Ropes, Splices § 10. (1) Rope slings shall be only once, and winch falls never, spliced together with wire ends. Splices on hemp and wire rope shall, for loading and unloading purposes, be made with at least six tucks of the strands. (2) In splicing, the strands shall always be tucked against the lay, or if the tucks are alternatively with and against the strands,. against the strands under one substrand and with the strands over two substrands. Chains § 11. (1) Round-link chains that are used for lifting and binding the loads shall be tested chains within the meaning of the"Principles concerning the requirements to be satisfied for round-link chains" of the Association of German Engineers. 2 The chains shall be handled and examined in conformity with these principles. The works' or expert's certificates concerning the tests required in 1 §26 (1) Ladders, shall be so constructed and placed that they are secure against slipping, sliding, and tipping and also against extensive oscillation and extensive bending. (2) Step and trestle ladders shall be secured against coming apart, e.g. by chains or articulated iron straps. (3) I t is prohibited to fasten ladder rungs by means of nails alone and to extend ladders b y nailing on uprights. (4) Ladders leading to masonry, platforms or hatches, or used in pits, shafts, etc., shall have a t least one upright projecting 0.7S m above the place to be climbed to unless some other device affords sufficient security against falls. 2 See Standard Sheet D I N 685 of the German Standards Committee. LEGISLATION: GERMANY 151 the manufacture of chains shall be drawn up by the works or experts nominated by the Federation of German Mutual Accident Insurance Associations. (2) Chains less than 12.5 mm thick shall not be used for lifting and binding. Operations with Two Derricks § 12. When in operations with two fixed derricks and falls shackled together heavy weights are hoisted or the angle between the falls exceeds a right angle, the strain on the derrick guys shall be eased in good time by a preventer attached to the top of the derrick. Supervision in and about the Hatch § 13. (1) If the crane or winch driver has not an adequate field of vision over the workplace from his stand or if the workers in the hold cannot directly concert with him by signals, a signalman shall be appointed at the hatch. If necessary, safe working shall be promoted by appointing persons at intermediate stations. On sea-going ships signallers shall always be appointed. (2) On large sea-going ships a signaller shall be appointed for every gang; on small sea-going ships the signaller may look after two gangs at one hatch if the relative positions of the cranes only allows of alternate loading. (3) The signaller shall be bound to see that : 1. As soon as and so long as the load moves the persons employed in its vicinity leave the danger zone in so far as the conditions of the hold allow; 2. The suspended load over a hold does not remain suspended when work is going on directly underneath; 3. The load is only lowered and landed when safe landing is possible; and 4. No person is conveyed by the hoisting gear. (4) Perceptible signals shall be given for hoisting and lowering loads and they shall only be given by the supervisor at the hatch (signaller, hatch foreman). Loading and Unloading § 14. (1) All goods to be hoisted by hoisting equipment shall be carefully secured against falling out. Containers shall not be so loaded with bulk goods (coal, ore, etc.) that goods can fall out. (2) For suspension, hemp ropes, wire ropes or chains shall be used according to the nature of the goods. The means of suspension and especially chains shall be carefully watched for damage; damaged means of suspension shall be promptly replaced. (3) Chains shall not be shortened by means of knots. (4) Before goods arc hoisted and lowered, the persons employed in these operations shall stand aside. (5) Unnecessarily remaining under and,on suspended loads is prohibited. 152 SAFETY IN DOCK WORK (6) Suspension chains, slings and other appliances shall not be thrown down. (7) Stacks shall be taken down in layers beginning from the top. Pulling out single packages from the lower layers is prohibited. (8) Idle hoisting and suspension chains shall be hooked up. (9) Double hooks and claws (can hooks, etc.) shall not be attached to loosely hanging chains but shall be rove in rope and chain slings. (10) In loading and unloading timber balks in and out of holds of sea-going ships, the use of tongs except for lifting the balk for suspension purposes is prohibited. For the rest, tongs shall only be used in the loading and unloading of timber balks when the load can be watched by the crane or winch driver. Timber balks shall not be suspended with chains. Intermediate Landing § 15. (1) Tall goods that tend to fall over or slip down shall only be landed or set down athwartship and so that the sling hook can always be seen by the signaller on deck or by the winch driver. (2) If an intermediate landing is made of suspended goods the signaller shall satisfy himself that they are properly slung before he gives the signal for rehoisting. (3) In landing and setting down piece goods or bagged goods the load shall be so turned that the plane of the slings lies in the direction of movement. Stowing in the Hold § 16. (1) Loading and unloading in tween decks shall not be commenced until the hatches leading below have been safely covered to a sufficient extent. Hatch covers shall be so laid on that they cannot be displaced or fall in. (2) In trunk hatches only so many stevedores shall be employed t h a t during loading and unloading they can, as far as possible, leave the danger zone. (3) If at a hatch work is carried on simultaneously in the upper and lower hold, the open end of the hatch in the higher deck shall be secured by means of planks, nets or in some other suitable manner against falling in of persons or goods. (4) If stevedores work in a hold on a partly covered hatch or on a tall stack so that they are in danger of falling down, a net shall be spread for their protection. Stowing tween Decks and on Hatch Covers § 17. (1) In stowing a hold round a hatch opening that is left clear, care shall be taken that the cargo is not stowed within 60 cm of the hatch frame so that hatch beams can be taken in and out and the hatch cover taken on and off without a risk of falling in. (2) Before unloading ships whose orlop deck is stowed up to the hatch frame and on which the handling of hatch covers and 153 LEGISLATION: GERMANY beams entails a risk of falling in, arrangements shall be made with the ship's officers to have the hatches opened by the ship's crew. (3) In stowing heavy goods such as metal bars on hatch covers, due regard shall be had to the bearing capacity of the covers. The supervisor shall ascertain from the ship's officers the permissible maximum load per unit area of hatch covering. Deck Cargoes § 18. (1) In setting down and storing heavy loads on the hatch roof due regard shall be had to their bearing capacity; if necessary, the roof shall be reinforced. (2) Deck cargoes shall be so stowed that it is possible to move safely over the deck or cargo. Disturbance from Noise and Ship's Operations § 19. (1) If on board work is being carried out that by reason of its noise renders communication between the signalman and the workers in the hold difficult, or impossible, e.g. chipping rust, caulking, the ship's officers shall be requested to stop such work. (2) The ship's officers shall be requested to stop work on masts when such work endangers or dirties those employed on deck, e.g. winch drivers. Conveyance in Port Vessels § 20. (1) Hatch covers of port vessels (decked lighters) shall not be walked on owing to the risk of breaking. (2) In towing river craft persons other than members of the crew shall not remain in the danger zone of the tow rope behind the towing frame or towing hook. Work with Fibre Ropes and Wire Ropes § 21. When working with fibre ropes and wire ropes everyone shall take care that he does not stand in a bight (loop). Additional Regulations § 22. If for the handling of the goods to be stowed there are special official Regulations these shall also apply as accident prevention Regulations. GREAT BRITAIN T h e Docks Regulations, .1934, dated 5 March 1934 made by t h e Secretary of State under section 79 of t h e Factory and Workshop Act, 1901 (1 Edw. 7. c. 22), in respect of the processes of loading, unloading, moving and handling goods i n , on, or a t a n y dock, wharf or quay, and the processes of loading, unloading and coaling any ship in any dock, harbour or canal 1 In pursuance of section 79 of the Factory and Workshop Act, 1901, P hereby make the following Regulations in respect of the processes of loading, unloading, moving and handling goods in, on, or at any dock, wharf, or quay, and the processes of loading, unloading and coaling any ship in any dock, harbour, or canal, and direct that they shall apply to all docks, wharves, quays and ships as aforesaid. Provided t h a t (i) nothing in Parts II to VI inclusive of these Regulations shall apply to the unloading of fish from a vessel employed in the catching of fish; (ii) nothing in Regulations 9, 10 (so far as regards liability to provide means of access), 11, 13, 14, 16, 17, 37 (a) and 48 shall apply to a barge or lighter; (iii) Regulations 18 (a), 19 (a) and 20 (a), and Regulation 22 (a) so far as regards the tests and examinations required under those Regulations, shall not apply to machinery, chains, or other gear taken into use, or wire rope purchased, before the commencement of these Regulations, but the corresponding provisions of Regulations 18, 19, 20 and 46 of the Docks Regulations, 19253, shall continue to apply thereto. Save as provided above, the Docks Regulations, 19258, shall be revoked as from the date of commencement of these Regulations. These Regulations may be cited as the Docks Regulations, 1934, and shall come into force on the 1st June, 1934. In these Regulations—• Definitions "Processes" means the processes above mentioned or any of them. "Person employed" means a person employed in the processes. "Prescribed" means prescribed by the Secretary of State. 1 2 3 Statutory Rules and Orders, 1934, No. 279. The Home Secretary. Legislative Series, 1925, G.B.I. LEGISLATION: GRBAT BRITAIN 155 "Hatch" means an opening in a deck used for the purpose of the processes or for trimming, or for ventilation. "Hatchway" means the whole space within the square of the hatches, from the top deck to the bottom of the hold. "Lifting machinery" means cranes, winches, hoists, derrick booms, derrick and mast bands, goosenecks, eyebolts, and all other permanent attachments to the derricks, masts and decks, used in hoisting or lowering in connection with the processes. "Pulley block" means pulley, block, gin and similar gear, other than a crane block specially constructed for use with a crane to which it is permanently attached. "Shallow canal" includes any of the following parts of a canal, canalised river, non-tidal river, or inland navigation: (a) any part having no means of access to tidal waters except through a lock not exceeding ninety feet in length; (b) any part not in frequent use for the processes ; and (c) any part at which the depth of water within fifteen feet of the edge does not ordinarily exceed five feet. Duties (a) It shall be the duty of the person having the general management and control of a dock, wharf, or quay, to comply with Part I of these Regulations; provided that if any other person has the exclusive right to occupation of any part of the dock, wharf, or quay, and has the general management and control of such port, the duty in respect of that part shall devolve upon that other person; and further provided that this part of these Regulations shall not apply to any shallow canal. (b) It shall be the duty of the owner, master, or officer in chargeof a ship to comply with Part II of these Regulations. (c) It shall be the duty of the owner of machinery or plant used in the processes, and in the case of machinery or plant carried on board a ship not being a ship registered in the United Kingdom it shall also be the duty of the master of such ship, to comply with Part III of these Regulations. (d) It shall be the duty of every person who by himself, his agents, or workmen carries on the processes, and of all agents, workmen, and persons employed by him in the processes, to comply with Part IV of these Regulations. Provided that, where the processes are carried on by a stevedore or other person other than the owner of the ship, it shall be the duty of the owner, master or officer in charge of the ship' to comply with Regulation 37, so far as it concerns: (1) any hatch not taken over by the said stevedore or other person for the purpose of the processes, and (2) any hatch which, after having been taken over by the said stevedore or other person for the purpose of the processes, (i) Has been reported by written notice in the prescribed form to the owner, master or officer in charge of the ship, by or on behalf of the said stevedore or other person, as being a hatch at which the processes have been completed or completed for the time being, and . 156 SAFETY IN DOCK WORK (ii) Either has been left by the said stevedore or other person fenced or covered as required by Regulation 37, or has been taken into use by or on behalf of the owner of the ship, and in either case has been so reported by such written notice as aforesaid. It shall be the duty of the owner, master or officer in charge of the ship to give immediately a written acknowledgment in the prescribed form of such written notice as aforesaid, (e) It shall be the duty of all persons, whether owners, occupiers, or persons employed, to comply with Part V of these Regulations. (/) Part VI of these Regulations shall be complied with by the persons on whom the duty is placed in that Part. PART I 1. Every regular approach over a dock, wharf or quay which persons employed have to use for going to or from a working place at which the processes are carried on and every such working place on shore shall be maintained with due regard to the safety of the persons employed. In particular, the following parts shall, as far as is practicable having regard to the traffic and working, be securely fenced so that the height of the fence shall be in no place less than two feet six inches, and the fencing shall be maintained in good condition ready for use: (a) All breaks, dangerous corners, and other dangerous parts or edges of a dock, wharf, or quay; (b) Both sides of such footways over bridges, caissons, and dock gates as are in general use by persons employed, and each side of the entrance at each end of such footway for a sufficient distance not exceeding five yards. 2. Provision for the rescue from drowning of persons employed shall be made and maintained, and shall include: (a) A supply of life-saving appliances, kept in readiness on. the wharf or quay, which shall be reasonably adequate having regard to all the circumstances; (b) Means a t or near the surface of the water at reasonable intervals, for enabling a person immersed to support himself or escape from the water, which shall be reasonably adequate having regard to all the circumstances. 3. All places in which persons employed are employed and any dangerous parts of the regular road or way over a dock, wharf, or quay, forming the approach to any such place from the nearest highway, shall be efficiently lighted. Provided that the towing path of a canal or canalised river shall not be deemed to be "an approach ' ' for the purpose of this Regulation. 4. (a) A sufficient number of first-aid boxes or cupboards of a standard to be prescribed shall be provided at every working place LEGISLATION: GREAT BRITAIN 157 and, if more than one is provided, at reasonable distances from each other. (b) A first-aid box or cupboard shall be marked plainly with a white cross on a red ground. 5. Nothing except appliances or requisites for first aid shall be kept in a first-aid box or cupboard. 6. A first-aid box or cupboard shall be kept stocked and in good order and shall be placed under the charge of a responsible person who shall always be readily available during working hours. Such person shall, except at docks, wharves or quays at which the total number of persons employed at any time does not exceed fifty, be a person trained in first aid. 7. There shall be provided for use at every dock, wharf or quay a t which the total number of persons employed at any time exceeds fifty, a suitably constructed ambulance carriage maintained in good condition, for the purpose of the removal of serious cases of accident or sickness, unless arrangements have been made for obtaining such a carriage when required from a hospital or other place situate not more than two miles from the dock, wharf or quay, and in telephonic communication therewith. 8. Notices shall be exhibited in prominent positions at every dock, wharf or quay stating: (a) The position of each first-aid box and the place where the person in charge thereof can be found ; (£>) The position of stretchers or other appliances ; (c) The position of the ambulance carriage or, where such is not provided, the position of the nearest telephone and the name and telephone number of the hospital or other place from which such carriage may be obtained. PART II 9. If a ship is lying at a wharf or quay for the purpose of loading or unloading or coaling, there shall be safe means of access for the use of persons employed at such times as they have to pass from the ship to the shore or from the shore to the ship as follows: (a) Where reasonably practicable the ship's accomodation ladder or a gangway or a similar construction not less than twenty-two inches wide, properly secured, and fenced throughout on each side to a clear height of two feet nine inches b}' means of upper and lower rails, taut ropes or chains or by other equally safe means, except that in the case of the ship's accomodation ladder such fencing shall be necessary on one side only, provided that the other side is properly protected by the ship's side; (b) In other cases a ladder of sound material and adequate length which shall be properly secured to prevent slipping. Provided that nothing in this Regulation shall be held to apply to cargo stages or cargo gangways if other proper means of access is provided in conformity with these Regulations. 158 SAFETY IN DOCK WORK Provided also that as regards any sailing vessel not exceeding 250 tons net registered tonnage and any steam vessel not exceeding 150 tons gross registered tonnage this Regulation shall not apply if and while the conditions are such that it is possible without undue risk to pass to and from the ship without the aid'of any special appliances. 10. If a ship is alongside any other ship, vessel, or boat, and persons employed have to pass from one to the other, safe means of access shall be provided for their use, unless the conditions are such t h a t it is possible to pass from one to the other without undue risk without the aid of any special appliance. If one of such ships, vessels, or boats is a sailing barge, flat, keel, lighter or other similar vessel of relatively low freeboard, the means of access shall be provided by the ship which has the higher freeboard. 11. (1) If the depth from the level of the deck to the bottom of the hold exceeds five feet, there shall be maintained safe means of access from the deck to the hold in which work is being carried on. (2) Save as hereinafter provided, such access shall be afforded by ladder, and by ladder cleats or cups on the coamings, and shall not be deemed to be safe: (a) Unless the ladders between the lower decks are in the same line as the ladder from the top deck, if the same is practicable having regard to the position of the lower hatch or hatches; (b) Unless the ladders provide a foothold of a depth including any space behind the ladder of not less than 4 ^ inches for a width of 10 inches and a firm handhold; (c) Unless the cleats or cups provided on coamings (i) provide a foothold of a depth including any space behind the cleats or cups of not less than 43^ inches for a width of 10 inches and a firm handhold; (ii) are so constructed as to prevent a man's foot slipping off the side; (iii) are placed vertically one above the other and in the same line as the ladders to which they give access; (d) Unless the cargo is towed sufficiently far from the ladder to leave at each rung of the ladder foothold of a depth including any space behind the ladder of not less than 4J/j inches for a width of 10 inches and a firm handhold; (e) Unless there is room to pass between a winch or other obstruction and the coamings at the place where the ladder leaves the deck; (/) If the ladder is recessed under the deck more than is reasonably necessary to keep the ladder clear of the hatchway. Provided that such access may be afforded: (i) Where the provision of a ladder on a bulkhead or in a trunk hatchway can be shown to be reasonably impracticable, by cleats or cups complying with the requirements of paragraph (c) ; LEGISLATION: GREAT BRITAIN 159 (ii) By ladders or steps, separate from any hatchway or sloping from deck to deck, if such ladders or steps comply with the requirements of paragraphs {b), (d) and (e). (3) Shaft tunnels shall be equipped with adequate handhold and foothold on each side. 12. When the processes are being carried on: (a) The places in the hold and on the decks where work is being carried on ; (b) The means of access provided in pursuance of Regulations 9 and 10;and (c) All parts of the ship to which persons employed may be required to proceed in the course of their employment, shall be efficiently lighted, due regard being had to the safety of the ship and cargo, of all persons employed and of the navigation of other vessels and to the duly approved By-laws or Regulations of any authority having power by statute to make By-laws or Regulations subject to approval by some other authority. 13. All fore-and-aft beams and thwart-ship beams used'for hatch covering shall have suitable gear for lifting them on and off without it being necessary for any person to go upon them to adjust such gear. 14. All hatch coverings shall be kept plainly marked to indicate the deck and hatch to which they belong and their position therein: Provided that this Regulation shall not apply in cases where all the hatch coverings of a ship are interchangeable or, in respect of marking of position, where all hatch coverings of a hatch are interchangeable. This Regulation shall apply to fore-and-aft beams and to thwartship beams as it applies to hatch coverings. 15. All fore-and-aft beams, and thwart-ship beams used for hatch covering and all hatch coverings shall be maintained in good condition. 16. Adequate hand grips shall be provided on all hatch coverings, having regard to their size and weight, unless the construction of the hatch or the hatch coverings is of a character rendering the provision of hand grips unnecessary. 17. Where the working space around a hatch is less than two feet wide, such provision shall be made as will enable persons employed to remove and replace in safety all fore-and-aft beams and thwart-ship beams used for hatch covering and all hatch coverings. PART III 18. (a) All lifting machinery shall have been tested and examined by a competent person in the manner set out in the Schedule to these Regulations before being taken into use. (&) (i) All derricks and permanent attachments, including bridle chains, to the derrick, mast and deck, used in hoisting or lowering shall be inspected once in every twelve months and be thoroughly examined once at least in every four years. 160 SAFETY IN DOCK WORK (ii) All other lifting machinery shall be thoroughly examined once at least every twelve months. : (iii) For the purposes of this Regulation thorough examination means a visual examination, supplemented if necessary by other means such as a hammer test, carried out as carefully as the conditions permit, in order to arrive at a reliable conclusion as to the safety of the parts examined; and if necessary for the purpose, parts of the machines and gear must be dismantled. 19. (a) No chain, ring, hook, shackle, swivel or pulley block shall be used in hoisting or lowering unless it has been tested and examined by a competent person in the manner set out in the Schedule to these Regulations. (b) All chains, other than bridle chains attached to derricks or masts, and all rings, hooks, shackles and swivels used in hoisting or lowering shall, unless they have been subjected to such other treatment as may be prescribed, be effectually annealed under the supervision of a competent person and at the following intervals: (i) Half inch and smaller chains, rings, hooks, shackles and swivels in general use, once at least in every six months; (ii) All other chains, rings, hooks, shackles and swivels in general use once at least in every twelve months. Provided t h a t in the case of such gear used solely on cranes and other hoisting appliances worked by hand, twelve months shall be substituted for six months in paragraph (i) and two years for twelve months in paragraph (ii). • Provided also that where the Chief Inspector of Factories is of opinion that, owing to the size, design, material or infrequency of use of any such gear or class of such gear, the requirement of this Regulation as to annealing is not necessary for the protection of persons employed, he may by certificate in writing (which he may in his discretion revoke) exempt such gear or class of gear from such requirement subject to such conditions as may be specified in such certificate. (c) All chains, other than bridle chains attached to derricks or masts, and all rings, hooks, shackles, swivels and pulley blocks shall be inspected by a competent person immediately before each occasion on which they are used in hoisting or lowering, unless they have been inspected within the preceding three months. (d) All chains, rings, hooks, shackles or swivels used in hoisting or lowering which have been lengthened, altered or repaired by welding shall before being again taken into use be adequately tested and re-examined. 20. (a) No rope shall be used in hoisting or lowering unless: (i) It is of and (ii) In the tested out in suitable quality and free from patent defect; case of wire rope, it has been examined and by a competent person in the manner set the Schedule to these Regulations. LEGISLATION: GREAT BRITAIN 161 (b) Every wire rope in general use for hoisting or lowering shall be inspected by a competent person once at least in every three months, provided that after any wire has broken in such rope it shall be inspected once at least in every month. (c) No wire rope shall be used in hoisting or lowering if in any length of eight diameters the total number of visible broken wires exceeds ten per cent, of the total number of wires, or the rope shows signs of excessive wear, corrosion or other defect which, in the opinion of the person who inspects it, renders it unfit for use. (d) A thimble or loop splice made in any wire rope shall have at least three tucks with a whole strand of the rope and two tucks with one half of the wires cut out of each strand. The strands in all cases shall be tucked against the lay of the rope. Provided that this Regulation shall not operate to prevent the use of another form of splice which can be shown to be as efficient as that laid down in this Regulation. 21. For the purposes of Regulations 18,19 and 20, a person shall not be deemed to be a competent person if and in so far as the Chief Inspector has given notice in writing that such person is in his opinion not technically qualified to carry out the tests, examinations or annealing required by these Regulations. Provided that any person whom the Chief Inspector may thus declare not to be competent shall have the right to appeal against such declaration to the Secretary of State, whose decision shall be final. 22. (a) Certificates in the prescribed forms and containing the prescribed particulars with regard to the tests, examinations, inspections, annealing or other treatment required under Regulations 18, 19 (a) and (b) and 20 (a) shall be obtained, and entered in or attached to the prescribed register before the machinery, chain, rope or other gear to which the certificate refers is subsequently taken into use in connection with the processes. (b) The prescribed register with the certificates required to be attached to it shall be kept on the premises unless some other place has been approved in writing by the Chief Inspector. 23. No pulley block shall be used in hoisting or lowering unless the safe working load is clearly stamped upon it. 24. Means shall be provided to enable any person using a chain or wire rope sling to ascertain the safe working load for such chain or sling under such conditions as it may be used. (a) As regards chain slings, such means shall consist of marking the safe working load in plain figures or letters upon the sling or upon a tablet or ring of durable material attached securely thereto. (b) As regards wire rope slings, such means shall, consist of either the means specified in paragraph (a) above or a notice or notices, so exhibited as to be easily read by any person concerned, stating the safe working loads for the various sizes of wire rope slings used. 25. Chains shall not be shortened by tying knots in them; and suitable packing shall be provided to prevent the links coming into contact with sharp edges of loads of hard material. 162 SAFETY IN DOCK WORK 26. All motors, cog wheels, chain and friction gearing, shafting, live electric conductors and steam pipes shall (unless it can be shown that by their position and construction they are equally safe to every person employed as they would be if securely fenced) be securely fenced so far as is practicable without impeding the safe working of the ship and without infringing any requirement of the Board of Trade. 27. Cranes and winches shall be provided with such means as will reduce to a minimum the risk of the accidental descent of a load while being raised or lowered; in particular, the lever controlling the link motion reversing gear of a crane or winch shall be provided with a suitable spring or other locking arrangement. 28. The driver's platform on every crane or tip driven by mechanical power shall be securely fenced and shall be provided with safe means of access. In particular, where access is by a ladder : (a) The sides of the ladder shall extend to a reasonable distance beyond the platform or some other suitable handhold shall be provided ; (b) The landing place on the platform shall be maintained free from obstruction ; (c) In cases where the ladder is vertical and exceeds thirty feet in height, a resting place shall be provided approximately midway between the platform and the foot of the ladder. 29. Every crane and derrick shall have the safe working load plainly marked upon it, and every shore crane if so constructed that the safe working load may be varied by the raising or lowering of the jib or otherwise, shall have attached to it an automatic indicator of safe working loads, provided that, in cases where the jib may be raised or lowered, provision on the crane of a table showing the safe working loads a t the corresponding inclinations or radii of the jib shall be considered sufficient compliance. 30. Adequate measures shall be taken to prevent exhaust steam from, and so far as is practicable live steam to, any crane or winch obscuring any part of the decks, gangways, stages, wharf, or quay where any person is employed in the processes. 31. Appropriate measures shall be taken to prevent the foot of a derrick being accidentally lifted out of its socket or support. PART IV 32. Precautions shall be taken to facilitate the escape of the workers when employed in a hold or on tween decks in dealing with coal or other bulk cargo. 33. (a) No lifting machinery, chains or other lifting appliance shall be loaded beyond the safe working load, except that a crane may be loaded beyond the safe working load in exceptional cases to such extent and subject to such conditions as may be approved by the engineer in charge or other competent person, if on each occasion : LEGISLATION: GREAT BRITAIN (i) (ii) Í63 The written permission of the owner or his responsible agent has been obtained; A record of the overload is kept. Provided also that, where the load upon a single sheave pulley block is attached to the pulley block instead of to the chain or rope passing round the sheave, the load on the pulley block shall be deemed for the purpose of this Regulation to be half the actual load. (b) No load shall be left suspended from a crane, winch, or other machine unless there is a competent person actually in charge of the machine while .the load is so left. 34. No person under 16 years of age and no person who is not sufficiently competent and reliable shall be employed as driver of a crane or winch, whether driven by mechanical power or otherwise, or to give signals to a driver or to attend to cargo falls on winch ends or winch bodies. 35. Where goods are placed on a wharf or quay other than a wharf or quay on a shallow canal: (a) A clear passage leading to the means of access to the ship required by Regulation 8 shall be maintained on the wharf or quay;and (b) If any space is left along the edge of the wharf or quay, it shall be at least three feet wide and clear of all obstructions other than fixed structures, plant and appliances in use. 36. (a) No deck-stage or cargo-stage shall be used in the processes unless it is substantially and firmly constructed and adequately supported, and, where necessary, securely fastened. (b) No truck shall be used for carrying cargo between ship and shore on a stage so steep as to be unsafe. (c) Any stage which is slippery shall be made safe by the use of sand or otherwise. 37. (a) If any hatch of a hold accessible to any person employed and exceeding five feet in depth, measured from the level of the deck in which the hatch is situated to the bottom of the hold, is not in use for the passage of goods, coal or other material, or for trimming, and the coamings are less than two feet six inches in height,'such hatch shall either be fenced to a height of three feet or be securely covered. Provided that this requirement shall not apply (i) to vessels not exceeding 200 tons net registered tonnage which have only one hatchway, (ii) to any vessel during meal times or other short interruptions of work during the period of employment. (b) Hatch coverings shall not be used in the construction of deck or cargo stages, or for any other purpose which may expose them to damage. (c) Hatch coverings shall be replaced on the hatches in the positions indicated by the markings made thereon in pursuance of Regulation 14. 38. No cargo shall be loaded or unloaded by a fall or sling at any intermediate deck unless either the hatch at that deck is securely 164 SAFETY IN DOCK WORK covered or a secure landing platform of a width not less than that of one section of hatch coverings has been placed across it. Provided that this Regulation shall not apply to any process of unloading the whole of which will be completed within a period of half an hour. 39. When the working space in a hold is confined to the square of the hatch, hooks shall not be made fast in the bands or fastenings of bales of cotton, wool, cork, gunny bags or other similar goods, nor shall can hooks be used for raising or lowering a barrel when, owing to the construction or condition of the barrel or of the hooks, their use is likely to be unsafe. Nothing in this Regulation shall apply to breaking out'or making up slings. 40. When work is proceeding on any skeleton deck, adequate staging shall be provided unless the space beneath the deck is filled with cargo to within a distance of two feet of such deck. 41. Where stacking, unstacking, stowing or unstowing of cargo or handling in connection therewith cannot be safely carried out unaided, reasonable measures to guard against accident shall be taken by shoring or otherwise. 42: The beams of any hatch in use for the processes shall, if not removed, be adequately secured to prevent their displacement. 43. When cargo is being loaded or unloaded by a fall a t a hatchway, a signaller shall be employed, and where more than one fall is being worked at a hatchway, a separate signaller shall be employed to attend to each fall. Provided : (i) T h a t this Regulation shall not apply in cases where a barge, lighter or other similar vessel is being loaded or unloaded if the driver of the crane or winch working the fall'has a clear and unrestricted view of those parts of the hold where work is being carried on ; (ii) T h a t where the Chief Inspector is of opinion that, owing to the nature of the crane or winch or other appliance in use or by reason of any special arrangements, the requirements of this Regulation are not necessary for the safety of persons employed he may by certificate in writing (which he may in his discretion revoke) suspend such requirements subject to such conditions as may be specified in such certificate. 44. When any person employed has to proceed to or from a ship by water for the purpose of carrying on the processes, proper measures shall be taken to provide for his safe transport. Vessels used for this purpose shall be in charge of a competent person, shall not be overcrowded, and shall be properly equipped for safe navigation and maintained in good condition. PART V 45. No person shall, unless duly authorised or in case of necessity, remove or interfere with any fencing, gangway, gear, ladder, LEGISLATION: GREAT BRITAIN 165 hatch covering, lifé-saving means or appliances, lights, marks, stages or other things whatsoever required by these Regulations to be provided. If removed, such things shall be restored at the end of the period during which their removal was necessary by the persons last engaged in the work that necessitated such removal. 46. The fencing required by Regulation 1 shall not be removed except to the extent and for the period reasonably necessary for carrying on the work of the dock or ship, or for repairing any fencing. If removed it shall be restored forthwith at the end of that period by the persons engaged in the work that necessitated its removal. 47. Every person employed shall use the means of access provided in accordance with Regulations 9, 10 and 11, and no person shall authorise or order another to use means of access other than those provided in accordance therewith. 48. No person shall go upon the fore-and-aft beams or thwartship beams for the purpose of adjusting the gear for lifting them on and off nor shall any person authorise or order another to do so. PART VI 49. No employer of persons in the processes shall allow machinery or gear to be used by such persons which does not comply with Part III of these Regulations. 50. If the persons whose duty it is to comply with Regulations 9, 10 and 12 fail so to do, then it shall also be the duty of the employers of the persons employed for whose use the means of access and the lights are required, to comply with the said Regulations within the shortest time reasonably practicable after such failure. 51. The prescribed register shall, on the application of any of H. M. Inspectors of Factories, be produced by the person in charge thereof; if it relates to the lifting machinery and other gear of a ship and is kept on the ship, it shall be produced, together with the certificate of the ship's register, by the person for the time being in charge of the ship. SCHEDULE M A N N E R OF T E S T AND EXAMINATION B E F O R E T A K I N G AND G E A R INTO U S E LIFTING MACHINERY Regulations 18 (a), 19 (a) and 20 (a) (a) Every winch with the whole of the gear accessory thereto (including derricks, goosenecks, eye-plates, eye-bolts or other attachments) shall be tested with a proof load which shall exceed the safe working load as follows: Safe working load Up to 20 tons 20-50 tons Over 50 tons Proof load 25 per cent, in excess 5 tons in excess .10 per cent, in excess 166 SAFETY IN DOCK WORK The proof load shall be applied either (i) by hoisting movable weights or (ii) by means of a spring or hydraulic balance or similar appliance, with the derrick at an angle to the horizontal which shall be stated in the certificate of the test. In the former case, after the movable weights have been hoisted, the derrick shall be swung as far as possible in both directions. In the latter case, the proof load shall be applied with the derrick swung as far as practicable first in one direction and then in the other. (b) Every crane and other hoisting machine with its accessory gear shall be tested with a proof load which shall exceed the safe working load as follows: Safe working load Up to 20 tons 20-50 tons Over 50 tons Proof load 25 per cent, in excess 5 tons in excess 10 per cent, in excess The said proof load shall be hoisted and swung as far as possible • in both directions. In the case of a jib crane, if the jib has a variable radius, it shall be tested with a proof load as defined above at the maximum and minimum radii of .the jib. In the case of hydraulic cranes or hoists, where, owing to the limitation of pressure, it is impossible to hoist a load 25 per cent, in excess of the safe working load, it shall be sufficient to hoist the greatest possible load. (c) Every article of loose gear (whether it is accessory to a machine or not) shall be tested with a proof load at least equal to that shown against the article in the following table : Article of Gear Chain . . Ring . . . Hook... Shackle. Swivel. . Proof load Twice the safe working load Pulley blocks: Single sheave block Four times the safe working load Multiple sheave block with] safe working load up to > Twice the safe working load and including 20 tons. J Multiple sheave block with safe working load over 20 tons up to and including 40 tons 20 tons in excess of the safe working load Multiple sheave block with] safe working load over [ O n e and a half times the safe 40 tons J working load LEGISLATION: GREAT BRITAIN 167 Provided that where the Chief Inspector of Factories is of opinion that, owing to the size, design, construction, material or use of any such loose gear or class of such gear, any of the above requirements are not necessary for the protection of persons employed, he may by certificate in writing (which he may in his discretion revoke) exempt such gear or class of gear from such requirement, subject to such conditions as may be stated in the certificate. (d) After being tested as aforesaid, all machines with the whole of the gear accessory thereto and all loose gear shall be examined, the sheaves and the pins of the pulley blocks being removed for the purpose, to see that no part is injured or permanently deformed by the test. (e) In the case of wire ropes, a sample shall be tested to destruction and the safe working load shall not exceed one fifth of the breaking load of the sample tested. PORTUGAL Decree No. 16978, to Approve t h e Regulations respecting Loading and Unloading Appliances used on Board Vessels of t h e Mercantile Marine. Dated 15 May 19281 1. The Regulations issued by the Minister of Marine, respecting the conditions with which appliances for loading and unloading used on board all vessels of the mercantile marine shall comply, are hereby approved. Sole subsection. The Ministry of Marine, on the recommendation of the Mercantile Marine Directorate, shall issue the necessary instructions for the proper administration and interpretation of the Regulations. 2. The cargo gear of a vessel which has been inspected and complies with the Docks Regulations of Great Britain, the Harbour Regulations of New Zealand or the corresponding Regulations of the (German) Maritime Accident Association (See-Berufsgenossenschaft) or any other Regulations deemed by the Mercantile Marine Directorate to be equivalent thereto shall be deemed to comply with the Regulations approved by this Decree, and it shall be the duty of the maritime authorities to ascertain whether such cargo' gear is used for loads in excess of those deemed to be safe working loads. 3. The cargo gear of a vessel which has not been tested and examined as required by the Regulations of its country in cases where such Regulations are deemed to be equivalent to the Portuguese Regulations may nevertheless be deemed to comply with the Regulations approved by this Decree, provided that: (a) I t shall n o t be used for loads in excess of those deemed in the Instructions to be safe working loads; (b) All the cargo gear has been examined by ship's officers (deemed to be responsible officers) within the previous six months; such examination shall be entered in the ship's log book; (c) A statement, where such is required by the maritime authority, shall be drawn up by the officers who carried out the examination and signed by the master, specifying the gear inspected and declaring that the cargo gear is in good condition and fit for the purpose for which it is intended. (1) The provisions of this section shall apply in particular on the occasion of the first entrance of a foreign vessel into a Portuguese port. 1 Diario do Govêrno, 18 June 1929. .LEGISLATION: PORTUGAL 169 (2) On subsequent visits such vessel shall be provided with cargo gear complying with the Portuguese Regulations or any other foreign Regulations deemed by the Mercantile Marine Directorate to be equivalent thereto. (3) Nevertheless, the cargo gear shall not in any case be used for loads in excess of those deemed to be safe working loads. 4. Any person who issues a certificate of test with respect to a chain, ring, wide or long link, wire rope or fibre rope which has not been tested, or who gives a false guarantee with respect to the breaking load of a fibre rope, shall be liable to a fine not exceeding 10,000 escudos. 5. If any person fails, refuses or neglects to comply with any of the provisions of this Decree or of the Regulations or Instructions, or in any manner obstructs, impedes or interferes with the doing of anything authorised to be done, or wilfully does anything prohibited by this Decree or the Regulations issued thereunder, he shall be liable to a fine not exceeding 10,000 escudos. 6. If any person knowingly or without sufficient excuse unlawfully puts upon the cargo gear of a vessel a load in excess of that deemed to be the safe working load and in consequence thereof causes an injury to any person, he shall be liable to a fine not exceeding 10,000 escudos and imprisonment for not less than one month nor more than two years or to one of these penalties alone. Sole subsection. Persons who are accessory to the offence specified in this section shall be liable to the same penalties as are prescribed for the principals. 7. The Ministry of Marine shall have power to enforce all the provisions of the Regulations and of the Instructions of a technical character approved and issued under this Decree. 8. This Decree shall come into operation on 1 July 1929. 9. All legislation to the contrary is hereby repealed. . Regulations r e s p e c t i n g Loading and Unloading Appliances o n Board Vessels of t h e Mercantile Marine CHAPTER I. GENERAL PROVISIONS 1. Masts in mechanically propelled vessels hereafter constructed shall have the dimensions laid down in and be stayed in conformity with the provisions laid down in the Instructions for the administration of these Regulations. Sole subsection. The rules of any classification society recognised by the Government may be adopted for the same purpose and with a view to obtaining the same results. 2. In the case of vessels hereafter constructed or of alterations in the cargo gear, the shipbuilders or shipowners shall submit for the approval of the Mercantile Marine Directorate plans in duplicate of the layout of the derricks, masts, winches and in general of all appliances constituting the cargo gear, specifying all the metalwork of the masts, derricks and decks connected with the processes of loading and unloading. 170 SAFETY IN DOCK WORK 3. In examining cargo gear, the test of each component part (ropes, chains, rings, shackles, swivels, hooks, blocks, etc.) and the test of the whole gear called the proof load shall be taken into account. 4. Derricks shall be numbered and marked in a visible and permanent manner with the maximum load which they can carry. Sole subsection. The said maximum load shall be stated in the report filed with the harbour authority. 5. A chain, ring, hook, shackle or swivel shall not be used in any loading or unloading appliance unless the relevant certificate of test containing the particulars laid down in the Instructions has been obtained. 6. A manufacturer of, agent for or dealer in chains or ropes shall not sell or contract to sell, and a person shall not purchase or contract to purchase, any chains or ropes and in general any accessory gear for hoisting appliances unless such articles have previously been submitted to tests in accordance with these Regulations or those of a classification society recognised by the Government, or finally, those of a foreign maritime authority, provided that reciprocal recognition is granted by the legislation of the respective countries. (1) In the case of fibre ropes the purchaser shall obtain a guarantee respecting the quality and the breaking load. (2) Any person contravening the provisions of this section shall be liable to a fine not exceeding 5,000 escudos. 7. Every contract for the sale of a chain or rope for use in the processes of loading and unloading shall in the absence of an express stipulation to the contrary be deemed to imply a warranty that such chain or rope has been tested before delivery, in accordance with these Regulations or such other Regulations as are deemed to be equivalent thereto by the Mercantile Marine Directorate. Sole subsection. In case of dispute it shall be the duty of the vendor to prove the existence of the said express stipulation, and he shall be responsible for the testing and marking of the articles intended forcargo gear on board ships, barges and lighters. CHAPTER II. S A F E WORKING LOADS • 8,. .-The standard for fixing the safe working loads for ropes and chains shall be .laid in the. Instructions for the administration of these Regulations. , 9. When the cargo gear of a, vessel is being used, no person shall p u t a' load of greater weight on any chain, sling or rope than thé weight given as a safe working load in the tables for chains, slings and ropes of different sizes. • •'-^l) If ropes «are used which have greater breaking loads than those; indicated in the tables, a higher, safe working load shall be allowed;; provided that it shall not exceed one seventh of the breaking load,3 '•-'•-•• • ^ -; ! (2)' A Idad'-fri. excess of 3 tons shall not in any case be put upon ¿'single whipT;vvhen attached to a ship's cargo gear. LEGISLATION: PORTUGAL 171 (3) As a rule a load in excess of 5 tons shall not be put upon a double whip unless the rope is passed through a block a t the hounds of the mast and the masthead is approximately three metres higher than the derrick head in which case the load may be increased to 6 tons. 10. Every block used in the cargo gear shall be marked in a legible and durable manner with its safe working load. 11. The necessary means shall be provided on board ship to enable any person responsible for using a rope or chain to ascertain the safe working load thereof and the conditions under which such safe working load can be used. Sole subsection. Such means may consist of the following: (a) A tablet attached to the rope or chain ; (6) Marks stamped on the chains; (c) Notices exhibited in accessible places, stating the safe working loads for the various sizes of ropes and chains and the different purposes for which they are used. CHAPTER III. PERIODICAL ANNEALING OP CHAINS. T H E I R REPLACEMENT 12. All chains shall be inspected periodically and the hardening removed by annealing or by subjecting them to any other heat treatment deemed to be equivalent for the purpose in view. (1) The intervals for annealing shall be as follows: (a) 12.5 mm (half-inch) and smaller chains, once at least in every six months ; (6) Chains of larger diameter, once at least in every twelve months. (2) If the chains, rings, etc., are used on appliances worked by hand, the intervals for annealing may be extended respectively to one and two years. (3) Further, the said intervals may be modified in cases where the competent authority has reason to believe that owing to the infrequency of use of any such gear the requirements laid down in this section and in subsection (1) thereof need not be complied with. (4) In the case of vessels engaged in the distant trade the requirements laid down under (a) of subsection (1) shall be deemed to have been complied with if chains of the diameter stated are not used on board unless they have been annealed during the six preceding months. (5) The provisions of this section shall not apply to bridle chains attached to derricks and masts. 13- Chains, rings, etc., shall be renewed when the transverse section shows wear to such an extent that their use is liable to be a cause of danger. (1) For the purposes of the above paragraph the condition of the chain, ring, etc., shall be deemed to be dangerous when the 172 SAFETY IN DOCK WORK wear of the worn parts is 10 per cent, of the diameter verified at the time of the test; in particular, chains, rings, etc., shall be put aside until the worn parts have been replaced when the wear in any part amounts to: 1.6 mm (3^6 inch) on chains up to 12.5 mm (half-inch) diameter; 2 mm ( j ^ inch) on chains, etc., up to 16 mm ( ^ inch) diameter; 0.4 mm {YM inch) on chains, etc., for every 3 mm (}/% inch) increase in diameter up to 51 mm (2 inches). (2) All chains, rings, shackles, hooks and swivels used in cargo gear which have been lengthened or shortened, altered or repaired by welding or heating shall be tested and examined afresh. CHAPTER IV. WIRE ROPES 14. Wire ropes in general use shall be examined once at least in every three months. Sole subsection. The said examination shall be made at shorter intervals (once a t least in every month) after any wire has broken in such rope. 15. A wire rope shall not be used: (a) If in any length of eight diameters the total number of visible broken wires exceeds 10 per cent, of the total number of wires; (¿>) If the rope shows signs of excessive wear, corrosion or other defect which in the opinion of the competent authorityrenders it unfit for use. Sole subsection. Excessive wear caused by friction shall be deemed to occur when the diameter of the outside wires is reduced ' to one half. 16. A loop splice made in any wire rope shall have at least three tucks with all the wires of all the strands of the rope and at least two tucks with one half of the wires of all the strands. (1) The tucks shall be made against the lay of the rope. (2) Any other form of splice deemed by the competent authority to be equivalent may be used. CHAPTER V. F U R T H E R T E S T S OP ACCESSORIES OF CARGO G E A R 17. The harbour authority may, at such intervals as it considers reasonable, or at any time when doubt arises as to the breaking load or quality of a certain rope, cause any wire rope certified by the maker or a fibre rope guaranteed by the maker to be tested by an independent authority. 18. Worn chains which have been repaired by the addition of new links or altered in any other manner, or which have been repaired by welding or other heat treatment, shall be tested afresh. (1) The test load shall not be less than twice the safe working load specified in the table contained in the Instructions. LEGISLATION: PORTUGAL 173 (2) A chain which has been repaired shall not be put into use without having been subjected to a satisfactory test. CHAPTER VI. LOADING T E S T FOR CARGO G E A R , INCLUDING W I N C H E S 19. When the cargo gear is ready, every derrick duly placed in position over the centre of its hatchway shall be subjected to a test. (1) The load shall be 25 per cent, in excess of the maximum load usually carried, provided that the overload need not exceed five tons. (2) The test shall be as follows: the load shall be hoisted and shall then be moved from port to starboard, and a pause shall be made until the load has resumed a position of equilibrium. (3) The cargo gear and its winches shall be inspected before and after the loading test. (4) Where the result of the test leaves no room for doubt of any kind, a certificate shall be issued, and the lower end of the derrick shall be marked with the number of the certificate, initials showing the nature of the test (P.L.), the date thereof and the stamp of the authority which carried out the test. (5) The permissible load for the cargo gear shall be entered in the certificate. 20. The loading test shall be repeated every four years. Sole subsection. Such further tests shall be noted in the report on the inspection of the vessel, and the dates of the making of the said further tests shall be marked on the derrick. CHAPTER VII. SAFETY REGULATIONS FOR W I N C H E S 21. Cylinders and steam pipes shall be provided with safety devices to protect workers against the risk of scalding, unless protection from such risk is afforded by the position of the said apparatus. (1) When steam is allowed to escape, it shall be led away in such manner as to protect workers from the risk of scalding. (2) The valve levers of winches shall be covered with asbestos cloth or insulated in some other manner to protect workers against the risk of scalding. 22. The driving wheel and other working parts of electric and steam winches and also of winches worked by hand shall be provided with sheet metal guards and other devices to protect the workers. 23. The position of winches in vessels hereafter constructed or vessels the cargo gear of which has been materially altered shall be such that work at the winches and in the hold is not obstructed at any time and free access to a holdladder is always ensured. 24. The connecting and disconnecting gear shall be such as to ensure that the winch can be worked without any danger. 25. All the bearings of winches shall be properly lubricated. 26. As a rule, the draining cock shall be opened before beginning work with the winches, and the valves shall be opened gradually so as to warm the engine before beginning work. 174 SAFETY IN DOCK WORK 27. Ropes shall be coiled at right, angles to the axis of the barrel of the winch, and the distance between the barrel and the foot of the derrick shall be as great as possible. Sole subsection. The position of the winch shall be such as to allow the operator an adequate field of vision. 28. As soon as the surface of the barrel shows any defects' due to the constant friction of the rope at any point, the barrel shall be machine-turned. • 29. Every care shall be taken to prevent jolting of the parts of the machinery during work, since as a general rule this means that the bearings are loose. Sole subsection. Measures shall be taken to avoid heating of the bearings, which is generally due to want of lubrication, too tight a fit, or sand, grit, dust, etc. 30. The wear on the bearings shall be examined, since, if the wear on the barrel bearings is greater than that on the bearings of the driving axle, the driving wheel will in consequence tend to slip on the spurwheel, and the teeth of the driving wheel or spurwheel may break off. 31. Where the barrel of a winch is operated by means of friction gear, the load shall be lowered with the use of the brake and not by means of the frictional difference between the cone and the barrel. 32. All the electrical parts of electric winches shall be protected by a watertight cover. Sole subsection. Wherever possible, the following conditions shall be complied with : (a) The accessory gear shall be watertight ; (¿0 The motor, controller and resistance shall be placed under the deck, unless such space is required for cargo; (c) The electrical equipment shall be fitted with fixed covers; (d) The commutator and brushes shall be kept free from oil and dust. 33. Winches shall in general be constructed in accordance with rules deemed to be satisfactory by the maritime authorities. 34. The winch machinery shall be arranged so that the hoisting of the load is effected by the forward movement of a vertical lever, by raising a horizontal lever, or by turning a valve lever to the right, and that the lowering of the load is effected by the backward movement of a vertical lever, by depressing a horizontal lever, or by turning a valve lever to the left. Sole subsection. Alterations in the gearing shall not affect the operation of the winches. 35. Every winch shall be provided with an effective brake. 36. If the barrels of a winch are mounted on long axles and are used for loading and unloading cargo, they shall be of adequate size and depth to enable the ropes to be coiled on them with safety. LEGISLATION: PORTUGAL 175 37. Every barrel shall be fitted with apertures to take a device for fastening the end of the rope. 38. Winches shall also be required to pass the loading test described in Chapter VI. CHAPTER VIII. RULES TO BE O B S E R V E D IN LOADING AND UNLOADING 39. The cargo gear of one vessel shall not be shackled to that of another vessel. Sole subsection. The provisions of this section shall not apply to the cargo gear of coal-lighters. 40. The following rules shall "be observed in loading and unloading : (a) Knots shall not be tied in chain pendants ; (b) Shackles with a large opening between the lugs shall not be used for the purpose of joining the pendant and cargo hook; • (c) The use of two derricks is permissible if the corresponding hooks and eyes in the derrick guys are sufficiently strong; (d) Gaffs shall not be used for loading and unloading unless the halyards allow their proper suspension; (e) Chains with stud links shall not be used ; (/) Rope slings shall not have more than one splice; (g) All holds not in use for the transport of cargo shall be closed ; (h) If cargo is being stowed on any deck and at the same time in a hold or on another deck, a safety device shall be placed on the open part of the deck hatchway, consisting of planking, netting, or other appropriate means of protection to prevent persons or cargo from falling ; (i) Excessive noise shall be prevented as far as possible in the proximity of hatchways during the operations of loading and unloading ; (j) Chain slings shall not be allowed to come into contact with the sharp edges of hard objects; (k) Slings shall not be of such length that the splice of the rope and the shackle can be hoisted into the gin. 41. Spliced wire ropes shall not be used in cargo gear, except in case of emergency. 42. A spare rope for cargo work shall be kept in all vessels navigating outside the zone of the home coasting trade. CHAPTER IX. SPECIAL INSPECTION OF LOADING AND UNLOADING APPLIANCES 43. An Order shall be issued respecting the fees to be paid by shipowners or ship charterers for the special inspection of loading and unloading appliances on board vessels. Schedule. Instructions for the administration of the Regulations respecting loading and unloading appliances used on board ship (with elaborate tables and diagrams). SWEDEN Royal Order concerning Safety Measures in the Use of Vessels. Dated 9 December 1932 CHAPTER V. OTHER SAFETY MEASURES ON BOARD § 18. (3) If hatches which, under §27 of the Order concerning the construction and equipment of vessels have to be protected, are open and not in use for the passage of goods, coal or other material or if the hatches are covered but not in an adequate manner, protection shall be installed; this, however, shall not be required for hatches of holds or bunkers during mealtimes in daylight, or provided that a watch is set at the hatch for any other break in the work at the hatch not exceeding one hour. Man hatches and also hatches of holds or bunkers shall, while the hatch is open or not adequately covered, be adequately lighted in darkness unless this is clearly superfluous. For work with a winch or crane at a partly uncovered hatch, the fore-and-aft and thwart-ship beams shall be secured against being lifted out. § 19. If a person has to go on board or leave the vessel, a gangway or accommodation ladder shall be put out or some similar measure taken unless this is clearly superfluous; but if such means of communication is not suitable or cannot reasonably be provided, a ladder may be provided. On the open sea only storm ladders shall be used. Gangways shall not have an excessive slope. Accommodation ladders shall have a suitable slope. Accommodation ladders and ladders and, unless this is clearly superfluous, gangways shall be secured in a suitable manner. All means of communication shall in darkness be adequately lighted. § 21. Before anyone is sent into a bunker, tank, peak, tunnel, drum or similar enclosed space, or into a hold that has been closed in such circumstances that entering it may be dangerous, or into a boiler, such measures shall be taken that entry is safe. § 22. For work in confined and badly ventilated places on board, open coke or coal fires shall not be used. If coke or coal ovens are used a suitable outlet for the combustion gases shall be provided. § 23. Exhaust steam from winches, capstans or cranes shall not be so discharged as to cause a risk of accidents. LEGISLATION: SWEDBN 177 Royal Notification concerning Safety Measures that in the Loading and Unloading of Vessels are the Responsibility of the Master, etc. Dated 8 October 19371 § 1. SCOPE The present notification shall apply to work on board or on •shore for the loading, unloading or bunkering of a vessel but not in so far as concerns the following vessels: (1) Vessels belonging to the Crown or to a foreign State and not conveying goods or passengers in general traffic; and (2) Vessels with a gross tonnage less than 20 register tons. § 2. HOISTING M A C H I N E S AND APPLIANCES (1) As regards hoisting machines and appliances forming part of the vessel's equipment, the following provisions shall be specially observed : (a) Before a hoisting machine, chain, ring, hook, shackle, swivel, block or wire rope is taken into use, its maximum permissible load shall be calculated, and in addition the object in question shall be tested and carefully examined. If a chain, ring, hook, shackle or swivel is lengthened, altered or repaired by welding, before it is again taken into use such necessary calculation, testing and careful examination shall again be undertaken. After a hoisting machine has been taken into use, it shall, so long as it is in use, be thoroughly examined at least every 12 months unless the Board of Trade decides otherwise. After a chain, ring, hook, shackle or swivel has been taken into use it shall, so long as it is in regular use, be annealed and carefully examined at such times as the Board of Trade may deem it reasonable to require. On every occasion when a chain, ring, hook, shackle, swivel, block or wire rope is used, it shall be examined unless it has been examined within the previous 3 months. The above provisions concerning testing, annealing and examination shall not apply to vessels with a gross tonnage of less than 300 register tons. (b) Concerning the calculation, testing, annealing and examination mentioned in the first, second and third paragraphs of subsection (a), a certificate or report shall be immediately drawn up in accordance with the regulations of the Board of Trade. 1 Svensk Förjattningssamling, 1937, No. 815. 178 SAFETY IN DOCK WORK (c) (d) (e) (/) (g) The certificate and the report shall, so long as they are in force, be kept on board and on request be shown to the competent inspection authority. The provisions of the present subsection shall not apply to vessels with a gross tonnage of less than 300 register tons. Derricks, cranes and chain slings shall be provided at suitable places with distinct marks indicating the maximum permissible loads. As regards derricks, the maximum permissible load shall be deemed to be that at an angle not exceeding 15° with the horizontal or if so small an angle cannot occur in use, the smallest possible angle in use. As regards chain slings, the mark shall be in plain figures or letters on the sling itself or on a tablet or ring of durable material securely fastened thereto. The Board of Trade may, when there are good reasons, both generally and for certain cases, grant exemptions from the provisions of the second paragraph of the present subsection. Suitable measures shall be taken to prevent the foot of a derrick from being inadvertently lifted out of its seat. Lifting blocks, leading blocks, spans and span blocks shall be fastened to the mast or derrick by shackles. Bolts for shackles shall be secured by split pins or other equivalent arrangements. The bolt may be secured by mousing in the case of screw bolts on shackles for span blocks and provided that the mousing is not exposed to abrasion. Loop splices with or without thimbles on wire ropes shall be made either with three tucks of a whole strand and two tucks of the strand with one half of the wires cut out, or in some other equivalent manner. Lifting hooks shall be so made that they do not slip or catch. (2) For hoisting machines and appliances that do not belong to the vessel's equipment, special provisions have been laid down. § 3. LIGHTING Workplaces on board ship and other places on board to which workers are required to go, shall, if dark, be effectively lighted. The lighting arrangements shall be such that they do not endanger the safety of the workers or interfere with the navigation of other vessels. § 4. PERFORMANCE OF WORK (1) As regards work performed by the ship's personnel, the following provisions shall be specially observed: (a) Goods shall not be. left suspended from a hoisting machine unless the machine is effectively watched by a LEGISLATION: SWEDEN (b) (c) (d) (e) (/) (g) (h) (i) (j) - (k) (I) (m) («) 179 competent person for the whole of the time that goods are suspended. If required for the safety of the workers, a person shall be appointed for signalling to the person operating the hoisting or transport machine. A person appointed to operate hoisting or transport machines, or to signal to such person or to attend to cargo falls on winch drums or ends shall be reliable and competent. Winch and crane hooks shall not be made fast in the bands or other fastenings around bales of paper, pulp, cotton, wool, cork, empty gunny bags or the like. Can hooks shall not be used for the loading or unloading of barrels, when, owing to the construction or the general condition of the hook or the barrel, this might cause danger. Hoisting machines and appliances shall not be loaded beyond the maximum permissible load. Chains shall not be shortened by tying knots in them. The necessary measures shall be taken to prevent chains, wire ropes and fibre ropes from being damaged by sharp edges. When so required for the workers' safety, suitable measures shall be taken in the stacking, unstacking, stowing and unloading of cargo and handling in connection therewith. Workers shall not use or be required to use such means of access to the vessel or hold as do not comply with the existing regulations. The deck near hatches shall not be so obstructed that the necessary access to the means for climbing into or out of the hold is prevented. The necessary precautions shall be taken to enable the workers easily to leave the hold in which they are employed on the loading or unloading of bulk goods. If a ladder is required in the hold or bunker of an undecked vessel, it shall be placed at the workers' disposal. The ladder shall be equipped at the top with hooks or other means for firmly securing it. Gangplanks, gangways or stages intended for loading, unloading or bunkering shall be strong, well constructed, and supported and secured to the necessary extent. To prevent slipping, such equipment shall, when necessary, be sanded or be otherwise suitably treated. Goods shall not be transported in handtrucks on gangways or other means of access whose slope causes danger to transport. The vessel's hatch coverings shall not be used for the construction of stages or for other purposes whereby they could be exposed to damage. (2) As regards work which'is not performed by the ship's personnel, special provisions have been laid down. , 180 SAFETY IN DOCK WORK § 5. ADDITIONAL PROVISIONS, ETC. The Board of Trade may, in cases other than those specially mentioned above, issue additional provisions in the matters regulated in the present Notification. In issuing Regulations under the present Notification, the provisions of the Convention of 27 April 1932 concerning the protection against accidents of workers employed in loading or unloading ships, shall be observed. Royal Notification concerning Safety Measures that in t h e Loading and Unloading of Vessels are the Responsibility of t h e Employer, etc. Dated 8 October 19371 § 1. SCOPE § 2. WORKPLACE AND M E A N S OP ACCESS (1) Such regular approaches over a wharf, quay or similar premises as workers have to use for going to or from a workplace on shore or on board ship and also workplaces on shore shall be maintained in a proper condition with regard to the workers' safety. In this connection, the following provisions shall be specially observed : (a) The workplace on shore and the approach to it from the nearest public way shall be provided with the necessary lighting; and (b) Railings, at least 90 cm high shall, where such is required for the workers' safety, and the railings do not unduly hinder traffic or work, be installed both at t h e workplace on shore and the approach to it (for example, at dangerous openings, corners and edges), and on both sides of passages over bridges, caissons or dock gates, the railings at both ends to be continued to such distance as may be deemed necessary. (2) On the wharves and quays referred to in (1) goods shall not be so stored as to hinder necessary access to gangways or other means of access t o the vessel. If, when goods are stored on such wharves or quays, a clear space is left at the edge of the wharf or quay, this space shall be at least 90 cm wide and be kept free from obstructive objects other than fixed structures or plant and appliances in use. § 3. HOISTING M A C H I N E S AND APPLIANCES (1) As regards hoisting machines and appliances belonging t o the vessel's equipment special provisions have been laid down. 1 Svensk Författningssamling, 1937, No. 816. LEGISLATION: SWEDEN 181 (2) As regards hoisting machines and appliances that do not belong to the ship's equipment the following provisions shall be observed : (a) [First three paragraphs are identical with the first three paragraphs of § 2. (1) (a) of S.F., 815.] Hoisting machines and appliances shall also be subject to adequate current supervision; in no case may chains, rings, hooks, shackles, swivels, blocks or wire ropes be used unless they have been inspected within the previous three months. (b) [Identical with § 2. (1) (b), first two paragraphs, of S.F., 815.] (c) Cranes and chain slings shall, at suitable places, be provided with a distinct mark indicating the maximum permissible load. If the lifting capacity of the crane depends on the radius or angle of the jib, the mark on the crane shall consist of such table or automatic indicator as will show the maximum permissible load at the various radii or angles of the jib. As regards chain slings, the mark shall be in plain figures or letters on the sling itself or on a tablet or ring of durable material fastened thereto. At places where slings of wire rope or fibre rope are kept, there shall be a notice indicating the maximum permissible load for every type of these slings. (d) Motors, cogwheels, friction wheels, transmissions, shafts, live electric conductors and steam pipes shall be protected to the necessary extent. (e) Cranes shall be provided with an effective brake. (/) Wire rope splices shall be made in a manner approved by the supreme authority of the industrial inspectorate. 1 § 4. PERFORMANCE OF W O R K (1) As regards work that is performed by the ship's personnel, special provisions have been laid down. (2) As regards work that is not performed by the ship's personnel, the following provisions shall be specially observed: [(a) — (n) are identical with § 4. (1), (a) — («) of S. F., 815.] (o) For administering first aid in accidents there shall be easily accessible equipment that can be immediately used and also, if the supreme authority of the industrial inspectorate so requires, a person who is competent to administer first aid, and is immediately available for this purpose. § 5. R E S C U E APPLIANCES On quays where work is frequently performed, the necessary life-saving appliances shall be easily accessible. 1 The State Insurance Institute. 182. SAFETY IN DOCK WORK § 6. ADDITIONAL PROVISIONS, ETC. The supreme authority of the industrial inspectorate may, in cases other than those specially mentioned above, issue additional provisions in the matters regulated in the present Notification. In issuing Regulations under the present Notification, the provisions of the Convention of 27 April 1932 concerning the protection against accidents of workers employed in loading or unloading ships shall be observed. Notification of t h e State Insurance Institute w i t h Special Provisions under t h e Royal Notification of 8 October 1937 (No. 816) concerning Safety Measures t h a t i n t h e Loading and Unloading of Vessels are t h e Responsibility of the Employer, etc. Dated 30 July 19381 § 1. By hoisting machines is meant, in the following provisions. a crane or other machine designed for the loading or unloading of vessels together with the fixed equipment belonging to it, such as a rope or a grab. By appliances is meant a loose object such as a cargo fall, rope sling, chain sling, ring, hook, shackle, swivel, block or other similar appliance for the hoisting of goods. § 2. The calculation, testing and examination mentioned in § 3 (2) (a) first paragraph of the above-mentioned Royal Notification shall be designated first examination and shall take place before the hoisting machine or appliance may be taken into use. A hoisting machine or appliance that undergoes substantial repair or alteration shall not again be taken into use before the examination mentioned in the preceding subsection has taken place. Substantial alteration or repair shall be deemed to include the lengthening, alteration or repair of the appliance by welding. § 3. The first examination shall comprise: Examination of such parts of the hoisting machine or appliance as are of importance with regard to protection against accidents; Verification of drawings and certificates concerning material and. construction, including welding and annealing, and also calculation of the maximum permissible load, the whole to the extent required for judging the operational safety of the hoisting machine or appliance ; ... ; Test, load in accordance with the standards laid down in Schedule. ,I. 2 If during the first examination the hoisting machine or appliance is found not to offer adequate safety, the examiner shall immediately so inform the employer who shall take the necessary remedial measures. § 4. After the first examination has been concluded, the examiner shall without delay draw up a report (certificate) in the form 1 Svensk Författningssamling, 1938, Ño. 600. "'* Not reproduced." LEGISLATION: SWEDEN 183 prescribed by the supreme authority of the industrial inspectorate 1 : As regards hoisting machines, in two copies of which one shall be kept by the employer and the other shall be sent by him without delay to the competent industrial inspector; and As regards appliances, in a single copy that shall be kept by the employer and on request be shown to the officials of the industrial inspectorate. § 5. The testing and examination of hoisting machines as mentioned in § 3. (2) (a) second paragraph of the above-mentioned Royal Notification, which shall take place at least every 12 months so long as the machine is in use, shall be designated re-examination (revisionsbesiktning). After an appliance has been taken into use it shall, so long as it is in regular use, undergo re-examination at least every 12 months. If during re-examination a hoisting machine or appliance is found no longer to offer adequate safety, the examiner shall immediately so inform the employer who shall take the necessary remedial measures. Concerning the re-examination, the examiner shall draw up a report (certificate) in the form prescribed by the supreme authority of the industrial inspectorate in the same manner as is prescribed in § 4 with regard to the first examination. § 6. If a hoisting machine or appliance, with due regard to the •circumstances, can be deemed to be exposed in an especially high •or small measure to a reduction in its operational safety, the competent industrial inspector may order a reasonable shortening or lengthening respectively of the periods mentioned in § 5. As regards hoisting machines, however, the periods shall not be lengthened by more than 12 months. § 7. The current supervision mentioned in § 3. (2) fourth paragraph of the above-mentioned Royal Notification shall be •designated current inspection. . Ropes or chains belonging to a hoisting machine together with their attachments on the drum and idler pulleys and also safety •devices on the hoisting machine, shall undergo current inspection at least once a week so long as the hoisting machine is in use. Appliances shall undergo such inspection when they are taken into use and thereafter at least once a week so long as they are in regular use. If an appliance reveals such wear or other defect that its operational safety is endangered, it shall be immediately replaced. For the current inspection of hoisting machines a log shall be kept in which shall be indicated the times of the inspections made, their results and the measures taken affecting the operational safety of the hoisting machines. § 8. For the calculation of wire ropes on the mechanism of hoisting machines the standards laid down in Schedule II 1 shall apply. 1 The State Insurance Institute. 184 SAFETY IN DOCK WORK For the loading of chain slings and fibre-rope slings, the tables in Schedule I I I 1 shall be followed. Annealing of appliances shall be carried out in conformity with the provisions of Schedule IV. 1 § 9. The examination and inspection mentioned above shall be arranged by the employer and shall only be carried out by a person who possesses the qualifications specified in Schedule V.1 At the employer's request the industrial inspector shall indicate a person who possesses the necessary competence for carrying out the examinations mentioned in §§ 3 and 5. §10. Hoisting machines shall be provided with a suitable inspection plate on which the examiner, after every examination, shall stamp the date of inspection, the maximum permissible load, and the examiner's identification mark. Appliances shall, as far as possible, be provided with a clear identification mark. Chain slings shall be marked in the manner specified in Schedule III. 1 instructions concerning Protection against Accidents in t h e Loading and Unloading of Vessels Issued by the State Insurance Institute in its Capacity as Supreme Authority of the Industrial Inspectorate. Dated 10 May 1941 GENERAL PROVISIONS Direction of Work 1. The employer is responsible for having the work suitably directed, supervised and distributed and also responsible for order and safety at the workplaces. Inebriated or unauthorised persons should not be admitted. If any person other than the employer is responsible for certain material (equipment) used in the work, and if it is clear that there are patent defects in the material in question, it shall be for the employer to address a request for the immediate removal of the defects to those who are responsible for the material (port owner, ship's master or other). Foremen and their Responsibilities 2. (a) In loading and unloading work the foreman shall not undertake or be required to undertake simultaneous supervision over more than six working gangs. Further, he may exercise supervision over more than one ship only when the ships are in the immediate vicinity of one another. If in loading and unloading work on one and the same ship,^ more than six working gangs are simultaneously employed, a suitable worker (underforeman) shall be appointed to assist the foreman in supervising the work. N o t reproduced. LÉGISLATION: SWEDEN 185 {b) The foreman shall see: that the material used for loading and unloading work is in a reliable condition; that defective material is taken out of use; that where the defects are of a nature to endanger safety, the work is interrupted until the defects are removed. (c) If loading and unloading work has to be done in shifts, the foreman as well as the workers should be relieved so that he can enjoy the necessary rest. (d) Persons belonging to the vessel's crew and who, in so far as concerns stevedoring, perform a foreman's duties, shall during these operations comply with the above provisions concerning foremen. Winch and Crane Attendants, Signalmen, Hatch Foremen and their Duties 3. (a) As winch or crane attendants, hatch foremen or signalmen there shall only be employed persons who, by reason of their experience and personal qualifications, are fitted to perform such work. Such persons shall, inter alia, have normal eyesight and hearing and in the case of hatch foremen also possess the necessary vocal powers. For such work when performed independently, and in so far as it is pot to be deemed to be incumbent on the ship's crew, persons under the age of 18 shall not be employed. Note. The employment on the kinds of work in question, of persons whose working capacity by reason of ill health or otherwise, is reduced or who d o not understand Swedish, must therefore be avoided as far as possible, since the safety of the other workers in very great measure 'depends on the entrusting of such work to persons who are fitted for it. (b) The hatch foreman shall carefully follow the loading and unloading work and be so placed that he can observe the course of all the work. He shall give clear signals to the crane and winch attendants in conformity with the signalling scheme (see Schedule I) and in good time give warnings to the workers in the hold, in. the barge or on the quays. As a rule there shall be one hatch foreman for every gang. For unloading work by means of cargo falls the hatch foremen may, as a rule, be replaced by a so-called "dumper". Note. Only exceptionally may a hatch foreman be'dispensed with, for example, when there is no-one in the hold, or in the case of undecked vessels, barges, railway wagons, etc., where the crane or winch a t t e n d a n t has a clear view of the workplace. With cranes, if the crane attendant has not the necessary view of the workplace, a signalman may be necessary even if the hatch foreman can be dispensed with. ' Lighting 4. A workplace on shore and the approach to it from the nearest public way shall be provided with adequate and dazzlefree lighting. 186 SAFETY IN DOCK WORK For work on board, if the natural lighting is not sufficient, adequate and suitable lighting shall be provided. Open flames shall not be used. Note, If the lighting fails the work shall be stopped until satisfactory lighting is restored. M E A N S OP ACCESS, ETC. Quays, Wharves and Conveyance by Boat 5. Such arrangements shall be made as enable the workers to reach and leave their workplaces safely. For this purpose the following provisions shall be complied with: (a) Quays and wharves shall be in a good condition and if there is danger of slipping, shall be sanded or made non-slippery as far as possible in some other way. If the quay or wharf slopes outwards, a rail or toeboard shall be installed at the outer edge. (b) Goods shall not be so stored on the quay as to hinder necessary access to gangways or other means of access t o the vessel. As a rule, goods shall not be stored within 90 cm from the edge of the quay or wharf. (c) If communication between ship and shore has to be maintained by a rowing boat or a power-driven boat less than 10 m in length that is not required to be provided with a passenger vessel certificate under the Act concerning inspection of ships and on which no passengers _ are conveyed against remuneration, the employer who undertakes loading or unloading work shall be bound to see that the transport of the workers to and from the workplace is carried on in an adequate manner and that the boats that are used for this purpose are seaworthy and not overloaded. In the case of longer-distance sea transport, especially during the cold season, the workers shall be provided with the necessary protection on board against wind and weather. Note. If transport is effected by boats other than those mentioned in subparagraph (c) they shall be subject, as regards construction and equipment, to those provisions of the Act concerning the inspection of ships and the regulations under this Act that relate to passenger vessels (S.F., 1914, No. 349, etc.). Gangways, Accommodation Ladders, etc. 6. Where so required for the workers' access to the vessel, there shall be suitably constructed and adequately installed gangways, accommodation ladders, ladders or steps. . Note. Planks in gangways shall be securely joined together so that they do not sag unequally. LEGISLATION: SWEDBN 187 Trestles, Stages, etc. 7. (c) Trestles, stages, passageways and the like shall, as regards material and construction, offer adequate safety and be in good condition. Movable trestles shall be firmly installed. If the height of stages has to be altered in the course of the work, trestles that can be raised and lowered shall be employed. Movable trestles more than 3 m in height shall only be used for occasional transport over railway tracks (but not on electrified lines with overhead conductors). Trestles or stages shall not be loaded in a manner that can endanger their safety (e.g. with grabs, heavy coal buckets, etc.). (b) Elevated passageways shall have an adequate width, at least 0.9 m, and be provided with a secure railing or guard rope on both sides at a height of about 0.9 m ; fixed passageways shall be provided with railings having two rails. (c) The landing place shall afford adequate space for the safe performance of the work. Landing places on the vessel's deck near hatchways, and landing places whose height exceeds 1.6 m, shall on the receiving side be provided with a firm rail about 0.6 m high and on the other sides with railings or a guard rope about 0.9 m high. (d) Bridges or passageways shall not sag in such a way as to cause inconvenience. They shall be firm, be secured against slipping and tipping, and if transport is effected with hand trucks, as a rule not have a slope exceeding 1:10. On sloping gangways, if transport is not effected with hand trucks, cross pieces should be fitted at suitable stepping intervals. To prevent slipping, bridges or passage ways shall be kept clear of snow and ice; where so required, they shall be sanded or other suitable measures shall be taken. (e) The bases of stages and trestles shall possess adequate strength and security. Note. Cases, bales, sacks, etc., shall not be used as bases. ( / ) The vessel's hatch covers shall not be used for gangways, bridges, passageways or stages. Prohibited Means of Access 8. The workers shall not use or be required to use such means of access to the vessel, hold or bunker as do not comply with statutory requirements. Note. Accordingly, workers may not use a winch or crane for their conveyance. LADDERS AND STEPS Ladders and Steps 9. Ladders to the hold or bunker shall comply with the provisions of the Building Regulations (Svensk Fo'rfattningssamling), 1937, No. 813, § 8. (c) and the Building Regulations of the Board of 188 SAFETY IN DOCK WORK Trade {Kommerskollegii Författningssamling), 1938, Series A, No. 2, § 98. (2) and (3). If loose ladders or steps are required in the vessel's hold or bunker, ladders or steps of adequate construction shall be placed at the workers' disposal. Ladders or steps shall be provided at the top with hooks or other means for firmly securing them. H A T C H E S AND HATCH BEAMS Hatches and Hatch Beams 10. (a) The removal and replacement of hatch covers shall be effected with the necessary caution and with the use of the lifting rings or handles on the covers. In replacing covers it shall be ascertained that every cover is put in its right place. In lifting fore-and-aft and thwart-ship beams in and out with a crane or winch only suitable slings intended for this purpose shall be used. (b) Covers that have been taken off and beams that have been lifted out shall be so stored that they do not cause any danger or hamper movement on deck, for example, by being stacked against the hatch coamings. Fore-and-aft and thwart-ship beams that are left in a hatch where work is going on shall be secured against being lifted out. HOISTING M A C H I N E S , ETC. Hoisting Machines 11. Cranes or other equipment intended for the loading and unloading of vessels together with their fixed equipment, including ropes or grabs, shall not be loaded beyond the maximum permissible load. Note. T h e maximum permissible load shall be clearly marked on hoisting machines [see §3. (2) (c) of the Royal Notification of 8 October 1937 (S.F., 816), concerning Safety Measures, t h a t in the Loading and Unloading of Vessels are the Responsibility of the Employer, etc.]. Goods with gross weight of 1000 kg or more shall, on the outside, be provided in a clear and durable manner with an indication of the gross weight in kg (Act concerning the Marking of the Weight in Certain Cases on Goods to be Loaded on Board Ship. S. F., 1932, No. 55). Derricks 12. If two or more derricks are used together at one and the same hatch (so-called coupled derricks) the derricks shall be secured by double or reinforced outer guys. Derricks with their hoisting ropes shall not be used for moving railway wagons or hauling barges. LEGISLATION: SWEDEN 189 Lifting Hooks 13. Lifting hooks shall offer adequate safety and be so shaped that they cannot slip or catch. Suspended Loads 14. As a rule loads shall not be left suspended in the hoisting machine. If this cannot be avoided, effective supervision shall be provided by a competent person, crane attendant or hatch foreman, for the whole time that the load is suspended. APPLIANCES, ETC. Rope Slings, Chain Slings, etc. 15. (a) Loop splices on wire rope shall be made either with at least three tucks of the whole strand and thereafter at least two tucks with successive reduction of the number of wires or in some other equivalent manner. Projecting wire ends shall be cut off as near as possible to the splice. Note. Instead of loop splices on wire ropes the use is recommended of a conical steel sleeve with a stirrup piece in which the end of the rope is fastened and poured with a metal suitable for the purpose. (b) Slings of wire rope or fibre rope arid also chain slings should, at the storeplace, be hung up, or in some other suitable way kept in groups with a clear notice over each group giving the dimensions and the maximum permissible load. Dimension and load tables for chain slings and rope slings (see Schedule II) shall be posted up at the storeplace. Appliances shall, as far as possible, be provided with a clear identification mark. On chain slings there shall also be stamped in a clear manner an indication of the maximum permissible load in kg. The height of the symbols shall be at least 6 mm. Can Hooks 16. Can hooks may only be used for loading and unloading vats or barrels if the vats or barrels afford an adequate grip for such hooks. Grabs, Coal Buckets, etc. 17. (a) Grabs shall be provided with a device such that they can be lifted without the jaws closing. (b) Coal buckets, tubs, etc., shall be provided with a suitable locking device to prevent inadvertent tipping. Suitable arrangements should be made to prevent crushing injuries in handling. (c) Tubs, large coal buckets, etc., shall be fastened to the hoisting rope or chain by shackles. 190 SAFETY IN DOCK WORK E X A M I N A T I O N AND TESTING, ETC., OF HOISTING M A C H I N E S AND APPLIANCES Examination and Testing of Hoisting Machines and Appliances 18. Hoisting machines and appliances that are used in work to which the Royal Notification of 8 October 1937 (S.F., 816) applies shall undergo examination and testing in the manner prescribed in the State Insurance Institute's Notification of 30 July 1938 (S.F., 600). For other hoisting machines or other appliances examination and testing shall be undertaken in the same manner. Current Inspection 19. Hoisting machines shall, while they are in use, undergo current inspection at least once a week. Appliances shall undergo such inspection when they are taken into use and thereafter at least once a week so long as they are in regular use. Current inspection of hoisting machines and appliances shall be carried out in the manner indicated in the Notification mentioned in Point 18 [S.F., 1937, 816, § 3. (2) (a) fourth paragraph, and S.F., 1938, 600, § 7]. A nnealing 20. Annealing of appliances that are used for the loading and unloading of vessels shall be effected in accordance with the provisions of Schedule IV to the Notification of the State Insurance Institute mentioned in Point 18. M E T H O D OF W O R K Slinging of Goods, etc. 21. (a) The necessary measures shall be taken for the prevention of slipping out of chain slings or rope slings. > Note. Hence, nooses shall not be used in unloading, since by reason of the lifting height and the number of sacks in the lift a risk of accidents can be deemed to exist. Chain slings or rope slings shall be of such length that they completely embrace the goods. In addition, it shall be ensured that in use the sling is kept free of kinks and twists. Chain slings shall not be shortened by tying knots in them. (Ô) If chain slings or rope slings can be damaged by sharp edged goods suitable padding shall be used. (c) Crane hooks or hand hooks shall not be hooked into wires, bands, etc., that are only intended to hold the goods together. LEGISLATION: SWEDËN 191 Loading and Unloading with More than One Gang at the Same Hatchway 22. In loading and unloading work with more than one working gang employed simultaneously at one and the same hatchway, the following provisions shall be specially observed: (a) For every working gang there shall be a special hatch foreman. (b) The space in the hold shall be so large that the workers in the event of danger quickly can take shelter under the deck. (c) In the loading and unloading of very long or unwieldy objects such as balks, iron rods, pipes, certain timber goods, etc., work with more than one working gang at the same hatchway should only take place if the hatch openings are exceptionally large and also the hold meets with the requirements of (b). (d) The length of the goods in the horizontal plane shall not exceed half the free length of the hatch opening. As a rule, work with more than one working gang at the same hatch should not take place if the length of the hatch opening is less than 5 m. (e) Goods shall not be carried over a working gang. Stacking and Sectional Loading 23. In the stowing or stacking of goods measures shall be taken to prevent the load from falling out or slipping or the workers from falling down. In so-called sectional loading or unloading of, for example, sacks, bales or barrels in the vessel's hold, the necessary measures for shoring and bracing shall be taken. If the height of the section exceeds 2 m, a guard rope, catch net or other protection shall be installed where this can be done without hampering the work. In sectional loading special care should be taken that there is an adequate landing place for receiving sling loads. Deck Cargoes, etc. 24. (a) Decks shall not be so obstructed near the hatch coamings that the necessary access to the hold ladder is rendered difficult. . (b) While the hold is being loaded or unloaded, on deck or on the deck cargo there shall be a safe place for the hatch foreman. (c) If the deck cargo is so high at the hatch or the deck railings that the hatch coamings or railings do not afford the necessary protection against collapse, special temporary protection shall be provided by means of guard ropes or fencing. Unloading and Passing of Bulk Goods 25. (a) Since in the unloading or passing of bulk goods such as coal or salt, grain, etc., access to the fixed hold ladders may be imperilled by collapse there shall be access to loose ladders. 192 SAFETY IN DOCK WORK (b) Undermining of bulk goods and work under overhangs shall not be allowed. Loading from Rafts 26. Rafts t h a t are used in the loading of vessels shall be of adequate size and for the rest be suitably constructed and possess such carrying capacity that the workers are not compelled to stand in water. Rafts shall be well lashed to the vessel's side. F I R S T - A I D AND RESCUE EQUIPMENT First-Aid Equipment, etc. 27. (a) For administering first aid in accidents there shall be at or in the vicinity of the workplace access to necessary first-aid equipment kept in a suitable box or cupboard. Suitable stretchers for hoisting injured persons out of the hold and for their subsequent transport shall be accessible in the requisite number at or near the workplace. (b) If the accident has caused even an insignificant wound, the wound shall for the prevention of infection be immediately cleaned and dressed, for example, with a dressing impregnated with }/& per cent, solution of choloramine. (c) As far as possible care shall be taken that in the case of an accident immediate help can be obtained from a person with nursing qualifications. (d) If the vessel has no direct communication with the shore, the employer who undertakes work on board shall be responsible for seeing that a suitable boat for the landing of injured persons is available near the vessel on which the work is done. (e) If the employer makes an agreement with the competent officers of the ship that in the case of an accident he may use the vessel's first-aid and medical equipment and also entrust a competent person on board with the administering of the necessary first aid, the provisions concerning the administering of such aid in the Notification of 8 October 1937 [S.F., No. 816, § 4. (2) (a)] shall be deemed t o have been complied with. Life-Saving Appliances 28. (a) On quays where work is frequently performed, the necessary life-saving appliances, as a rule consisting of steps with hooks and pole hooks and lifebuoys with ropes shall be readily accessible. (b) For work on vessels that have no fixed communication with the shore the life-saving equipment on board shall, as a rule, be considered adequate for the needs of the workers employed in loading and unloading work. (c) Life-saving appliances shall only be used for their proper purpose and unless for compelling reasons shall not be removed from their place, to which they shall be immediately returned after use. LEGISLATION: 193 SWEDEN Waiting Rooms, Dormitories, etc. SCHEDULE I SIGNALLING SCHEME FOR TRAVERSER AND CRANE DRIVERS SIGNALSCHEMA FOR TRAVERS- OCH KRANFÖRARE UPP NED IF HOISTING. LOWERING OR TRAVELLING HAS TO BE DONE QUfC KLY THE MOVEMENTS OF THE HAND ARE LIVELIER HASTIST UPP = u p ÂK = TRAVEL STOPP N E D = D O W N STOPP = STOP HASTIGT STOPP = STOP QUICKLY 194 SAFETY IN DOCK WORK SCHEDULE II DIMENSION AND LOADING TABLE FOR CHAIN SLINGS AND ROPE SLINGS WIRE ROPE WITH 144 WIRES Approximate dimension mm 11.5 13 15 17 19 21 ' 22.5 24.5 26.5 30 34 Permissible load kg Two-legged sling Single rope 45° 875 1,200 1,550 1,975 2,425 2,975 3,525 4,150 4,800 6,250 7,925 . 1,575 2,160 2,790 3,550 4,360 5,350 6,350 7,470 8,640 11,250 14,260 90° 1,225 1,680 2,170 2,760 3,390 4,160 4,930 5,810 6,720 8,750 11,100 120" 875 1,200 1,550 1,975 2,425 2,975 3,525 4,150 4,800 6,250 7,925 NEW ROPES WITH FIRST QUALITY FIBRES Size of rope Permissible load kg Circumference in 1 IM IM 1M • 2 2M • m 2M 3 3H 3M 3M 4 4M 4M 4M 5 Diameter mm in mm 25 32 38 44 51 57 64 70 76 83 89 95 102 108 114 121 127 A Vs M % Va % % M % IM. IM 8 10 13 14 16 18 20 22 24 26 28 30 32 34 36 38 40 m IM IM 1JÍ IM IM Single rope Two legs 120 150 200 220 250 300 350 400 450 550 650 750 900 1,100 1,300 1,500 1,700 200 250 300 350 400 500 600 700 800 900 1,100 1,300 1,500 1,700 2,000 2,300 2,700 SHORT-LINKED ' MACHINE-FORGED CHAINS Permissible load kg Two-legged sling Single chain 45° 9.5 11 13 14.5 16 17.5 19 20.5 22 24 25.5 27 28.5 700 1,000 1,300 1,700 2,100 2,500 3,000 3,500 4,100 4,800 5,500 6,300 7,100 1,260 1,800 2,340 3,060 3,780 4,500 5,400 6,300 7,380 8,640 9,900 11,350 12,780 90° 980 1,400 1,820 2,380 2,940 3,500 4,200 4,900 5,740 6,720 7,700 8,820 9,940 120° 700 1,000 1,300 1,700 2,100 2,500 3,000 3,500 4,100 4,800 5,500 6,300 7,100 UNITED STATES OF AMERICA Maritime Safety Code for Stevedoring and Freight Handling Operations 1 SECTION I. RESPONSIBILITIES OF PERSONNEL Part A. The Owner, Master, and Officers of the Vessel (1) To supply and maintain in safe condition for use, all ship's gear, equipment, tools, and work spaces which are to be used in stevedore operations. (2) To maintain order and discipline with respect to ships' crews, passengers, licensees, and visitors, so as to avoid interference with the safe performance of stevedoring work. Part B. The Owner, or Lessee of the Dock, Warehouse' or Terminal (1) To place and maintain all work spaces, structures thereon, and such gear and equipment as comes under his control, in safe condition for stevedoring work. (2) To maintain order and discipline with respect to vehicular and pedestrian traffic under his control so as to avoid interference with the safety of stevedoring work. Part C. The Contracting Stevedore or Stevedoring Department (1) To maintain all gear, equipment, tools, and work spaces under his control in safe working conditions. (2) To promulgate and enforce rules which shall require those immediately in charge of stevedoring operations to report to their superior any unsafe condition affecting the safe performance of the stevedoring work. SECTION II. PREPARATION AND RIGGING Part A. Safe Condition and Maintenance of All Winches, Hatch Covers, Ship's Gear and Equipment, Decks, Docks, and Structures (1) Special attention, during any inspection, should be given to the following: {a) Winches, tools, loose keys, loose lever pins, falls not securely fastened to drums, and any other defects; 1 Compiled and recommended by The Maritime Association of the Port of New York, 80 Broad Street, New York City, 193S>. 196 SAFETY IN DOCK WORK (b) Shackle pins on topping lift and cargo blocks should be checked to'see if pins have worked loose. Shackle pins should be secured with seizing wire or key pins; (c) Flooring of decks, docks, gangplanks, and passageways should be examined for defects; (d) Cargo booms should have approved capacity plainly marked in a conspicuous manner and place, preferably at the heel of the boom. In the absence of such marking, the shipowner shall supply the stevedore with a . statement as to the capacity of the boom. (2) When decks, gangways, ladders, docks, or other passageways are slippery due to ice, oil, grease, or other materials, an adequate supply of salt, sand, or cinders should be provided and used to prevent slipping and falling. If it is impractical to use these anti-slip materials, safety lines should be rigged and a warning sign should be conspicuously placed nearby "Danger, Slippery Deck", and the condition corrected as soon as possible. (3) Look about before passing working hatches. (4) Suitable protection should be placed near all open manholes. (5) All hatch covers and fore-and-aft and thwart-ship beams shall, in so far as they are not interchangeable, be kept plainly marked to indicate the deck and hatch to which they belong and their position therein. (6) Deflectors shall be used on openings from ships discharging waste water or matter interfering with the operations or affecting the health of longshoremen. (7) Where temporary stage is to be used for the purpose of discharging cargo by the use of wheelbarrow, it should be equipped with side railings. (8) When working cargo over a deck load, a safe walkway should be provided for the hatch tender from rail to coaming. (9) Where deck loads are to be carried, pennants should be secured to the ship's side that would reach above the highest deck load for the purpose of making fast the derrick guys. This will do away with the necessity of men going down over the side to adjust guys. Such pennants may be used in lashing the deck load. (10) Overhead flange on side-port gangway and hatch-door openings should be provided with head bumper or safety cushions at least 2 inches thick and to extend across the entire door opening. Part B. Provisions for Boarding and Leaving the Vessel (1) When a ship is lying at a dock there shall be provided at all times a safe means of going to and from the ship. (2) Water or steam hoses should not be laid on or across gangways. Brackets or other suitable means should be provided for hanging hose on the side of gangways to prevent tripping hazards to persons using them. (3) All person's going to and from the ship must use the gangplanks or ladders provided. "Short-cuts" over side via cargo slings, save-alls, moving conveyors, etc., are prohibited. LEGISLATION: UNITED STATES OF AMERICA 197 (4) When working a barge, scow, or raft alongside ship, a pilot's (Jacob's) ladder or its equivalent, properly secured, shall be provided and used for each separate unit of operation. (5) When a ship, boat, or other vessel is alongside any other ship, boat, or other vessel, and persons are required to pass from one to the other, a safe means of passage shall be provided. (6) No person shall ride a draft or cargo hook, or be hoisted from dock to ship, or into hold, or vice versa, by ship's gear, except in the event of an accident. (7) Jumping to and from any moving barge, scow, tug, or lighter should be strictly prohibited. Part C. Provision of Adequate Light and Ventilation (1) Adequate illumination should be provided to afford safe passage on the gangplanks and ladders. (2) No person shall be permitted to enter a ship's hold unless sufficient hatches are removed to give adequate natural light, or artificial illumination is provided. (3) Entering any dark compartments, hatches, buildings, boxcars, or other places without safe and proper illumination shall be prohibited. The use of matches or open lights shall be forbidden. (4) All lights aboard ship should be provided with substantial metal guards or cages. (5) Lighting wires and fixtures shall be installed so as to be free from contact with drafts, loads, running gear, or other moving equipment. (6) Periodical inspection should be made of all electrical installation, particular attention being given to connections, insulation, location of wiring and fixtures, methods of suspension, etc. (7) Ship's decks and holds where cargo is being handled at night should be adequately illuminated. (8) Warehouses requiring the use of an extension light system due to the lack of sufficient illumination should provide brackets or other means of support for the cable to give clearance to tractors. At no time should this cable be permitted to lie on the ground and tractors run it over as this may cause shock or other serious personal injury to workers. Part D. Berthing and Shifting Vessels (1) Prior to docking a vessel at any_pier having a narrow string piece, the pier door or doors around area of regular mooring ballards or cleats should be opened so that men handling heavy lines can stand within pier. (2) Men should keep clear of the bight of a line and should not stand in or on coil. (3) Mooring lines should be secured to bitts, not capstan or drum ends. (4) Men should stand to one side—not straddle a line when stopping it. (5) Men should not be permitted to stand on the side of a covered barge when same is being shifted. They shall stand on the 198 SAFETY IN DOCK WORK bow or stern deck with all parts of their bodies inside the deck rail. (6) When the box type of barge is being shifted, men shall be prohibited from crossing over hatch covers or walking across beams of^open hatches. (7) Cargo falls or ships hoisting gear should not be used to move barges, scows, or lighters or railroad cars. (8) All men assigned to the shifting of a barge, scow, or lighter shall stand on the inboard side of the bitts, cleats, or ballard when making lines fast and always face the line of direction of the strain. Part E. Laying out and Installing Equipment and Gear (1) Care should be taken to see that the fall lines of one derrick do not rub on the standing gear of other derricks or equipment. (2) The fall should be of a length to provide three full turns on the drum when the cargo hook has reached the farthest point of travel. (3) The ends of the fall should be fastened securely to the drum. (4) Whenever possible, the fall should be wound on the drum of the winch so t h a t the lever will have the same direction of operation as the load being handled. (5) The winch operator should be so located as to be protected from swinging loads or drafts. (6) When winch drums are located so as to expose the winch driver to the bight of the fall, a fairleader should be provided to prevent the winch driver from being injured by bight of fall. (7) Appropriate measures shall be taken to prevent exhaust steam and, so far as practicable, live steam to any winch, from obscuring any part of the working place at which a worker is employed. (8) Boom guys and gin blocks should be secured by shackles. (9) Cargo booms should be lowered to the deck for changing gear or making repairs. When it is impossible to lower boom to deck and a man must go aloft, a boatswain's chair should be used and hoisted aloft by hand power only. (10) Where the derrick post is low it is important to avoid topping the boom too high, as it will put undue strain on the boom and the topping lift. (11) When topping or lowering a boom is necessary, suitable stoppers should be used to prevent falling of the boom. When a ship is equipped with wire purchases the ship should furnish a sufficient number of chain stoppers to permit of safely shifting the derrick-topping lift. There should be at least one stopper for each hatch. (12) All splices on wire bridles shall have a cover of marline, rubber hose, or other suitable protection for men's hands. (13) The boom guys and preventers should be kept as far away from the heel of the boom as possible, but not past the line of the fall. No set-up should be made that will automatically make the boom top up. LEGISLATION: UNITED STATES OF AMERICA 199 (14) Guys, preventers, and other lines should each be fastened to a separate cleat or ring bolt. Part F. Opening or Closing. Hatches (1) Bridle slings, which shall be furnished by the vessel, should be used for handling large hatch covers, beams, and strongbacks. Lanyards or tag lines of sufficient length should be fastened near the shackles or toggles so that longshoremen can walk around the open hatch and hold the load from swinging. (2) Men shall not be allowed to walk out on hatch beams or strongbacks to place slings, or to cross hatch. (3) All beams or strongbacks which will not hoist out with the usual strain, because of being jammed, should be taken out under the supervision of a ship's officer. (4) When work is finished or temporarily suspended in one hatch, that hatch cover should be replaced or the open hatchway should be properly guarded. (5) When longshoremen are working through an opening of one section in a hatch, the remaining beams that are left in should be properly secured. (6) When hatch covers or strongbacks are off, they should be piled or placed on deck in such a position as not to interfere with gangwaymen or others working or walking on deck of vessel. When hatch covers are piled near open hatches, with coamings, covers should be kept reasonably below the top of the coaming. (7) Tween-deck hatch covers should be stowed at a safe distance from coaming to prevent them from being thrown into hold by a draft swinging under coamings. (8) When gangwaymen make a flooring of hatch covers between the coaming and sides of the vessel they should place them so as to leave no space between the hatch covers and prevent a tripping hazard. (9) Any hatch covers or strongbacks which cannot be properly placed, or are otherwise found defective, should be reported by the longshoremen to foremen who should immediately advise proper officer of ship. (10) Hatch covers that are placed over beams resting on deck should be properly blocked to prevent them from moving. (11) Beams used for hatch coverings shall have suitable gear for removing and replacing them, of such a character as to render it unnecessary for workers to-go upon them for the purpose of adjusting such gear. (12) Adequate handgrips should be provided on all hatch covers. (13) Longshoremen should not be permitted to handle slingloads in the tweén decks' being worked unless strongbacks and hatch covers are in place and properly fitted, and if a section of covers is left off, then the strongbacks should be properly secured and, if practical, lifelines rigged to prevent men from stepping off into the open space. (14) Hatch coverings shall not be used in the construction of cargo stages or for any other purpose which may expose them to damage. 200 SAFETY IN DOCK WORK Part G. Transportation of Men by Boat or Vehicle (1) All boats owned, operated, or chartered for transporting employees shall be licensed in accordance with all laws governing the Steamboat Inspection Service, Department of Commerce, and United States Government. (2) Adequate and safe means of boarding and leaving the transporting vessel shall be provided and all employees checked before going aboard and rechecked when debarking. (3) Vehicles transporting workmen shall be operated in a safe and careful manner and shall not exceed limits as prescribed by law. (4) Tools, materials, equipment, etc., and persons are not to be transported in the same vehicle unless all tools, materials, equipment, etc., are properly secured against movement. (5) Drivers' seats shall not contain more than the number of persons permitted by law. Part H. General (1) All passageways on decks or between decks should be kept clear of slings, trays, pieces of dunnage, etc. (2) Employees shall not be permitted to throw dunnage, gear, or equipment into holds of vessels or from the ship to the dock or vice versa. (3) Life rings for the rescue of employees fallen overboard should be maintained at easily accessible and conspicuously marked points. (4) If tools, materials, appliances, or any gear at any time found to be out of repair, defective, or in any way unsafe, employees shall report this to the foreman in charge of the work immediately. (5) All defective equipment should be laid aside and collected daily and turned in. The use of such equipment should be prohibited until repairs have been completed. (6) Gear or equipment not in use should not be left lying around decks of ship or dock. (7) When necessary, trucking planks should be lashed in place. Lashings to be secured to the pier or boat as occasions require. Where necessary ring bolts shall be located on both sides of each door opening so as to properly secure trucking planks. SECTION III. FREIGHT HANDLING Note: This section is intended to cover only rules specially applicable to the work outlined under this general heading. Other sections, particularly IV and V, should bè referred to for other rules also applicable to freight handling. Part A. Loading or Unloading Railroad Cars (1) Race pieces or other suitable access to railroad cars should be provided and should be secure, to avoid dropping; for instance, by means of drilling a hole near the corner of each plate and dropping a bolt through the hole. LEGISLATION: UNITED STATES OF AMERICA 201 (2) Car dobrs should be pulled open, not pushed, so as to eliminate the possibility of men being struck by material falling out of car. (3) Employees should be prohibited from crawling or climbing under, over, or through railroad cars when passing to or from their places of work. Regular passageways should be used. (4) Employees assigned to work in railroad cars should stand outside car when drafts of long, heavy or awkward cargo are being hoisted or lowered. (5) Where boxcars are being loaded abreast of the vessel, a substantial landing stage should be provided. (6) When boxcars are spotted abreast one another a t each hatch, requiring the use of steel plates (race pieces), these plates shall be so constructed that they can be securely fastened a t the four corners, as provided for in paragraph 1. Where wooden skids are used, they shall be securely lashed. Part B. General (1) Precautions should be taken when trucking over broken, uneven, raised, or depressed surfaces. (2) Broken cargo should be recoopered before being made up into draft. (3) Employees shall stand clear of moving railroad cars and at no time shall they be permitted to remain aboard while the cars are being shifted. (4) Cargo falls or booms shall not be used to move railroad cars on docks. When shifting cars with other gear and equipment, all employees other than those assigned to shifting operations shall be made to stand clear. No employee shall stand between the stringpiece and the ship's side when cars are being moved. SECTION IV. M A K I N G UP AND BREAKING DOWN D R A F T S , T I E R I N G AND STOWING CARGOES Part A. Distribution, Team Work, and Operating Practices of Men (1) Two men shall be assigned, on a log boom at night. Where two hatches are working from the same log boom in good daylight, or where suitable passage from one boom to the other is provided, then it will be permissible to operate with one man on each. Lines made fast on deck and hanging overside to water's edge for lifelines shall be furnished by the ship. (2) Coal and bulk cargo trimmers shall be checked in and out of the hold, to avoid the loss of men who might become trapped. (3) Men breaking down cargo should not turn their backs to the tiers if any pieces in the tiers are overhanging, or the tiers themselves are leaning. (4) Particular attention should be given to the number of men assigned to making up drafts in the square of a hatch where circumstances limit the working area. 202 SAFBTY IN DOCK WORK Part B. Making up and Breaking down Drafts (1) Cargo shall be loaded so that no piece can fall from the draft. (2) Men should not make up drafts under or in the path of moving loads or drafts. Part C. Tiering and Stowing (1) Cargoes which are likely to shift or roll shall be secured or blocked. (2) Dangerously tiered cargo shall be properly supported. (3) All cargo stowed in pier by stevedores, truckmen, etc., should be tiered in such manner to prevent the tier from collapsing. (4) Cargo stowed in tween or shelter decks, or any upper cargo compartment, should be secure before loading or discharging the compartment below. (5) Conveyors or escalators used for high tiering should be equipped with guards to prevent employees from leaning over top of tier to grasp container or bag before it reaches the top of the escalator. Part D. Use of Cotton Hooks, Jacks, or Other Hand Tools (1) Stevedores' hand hooks when not in use should be put in some safe place and should not be placed where they may be stepped on or sat upon or hung up where vibration may shake them down. (2) Hooks should not be placed in belly of bag in breaking down or tiering-up cargo. Part E. General (1) Dunnage should not be broken over a man's knee or by jumping on same; a saw should be provided and used for cutting dunnage. (2) Loose dunnage should not be permitted to be left in square <o{ hatch or in the path of draft being dragged or landed. It should be laid as needed or picked up as uncovered. (3) Uprights for deck cargo should be lashed to the superstructure until they can be removed. (4) Where temporary staging is used in connection with stowing of cargo, such staging should be substantially built, securely fastened, and with suitable flooring of adequate width. (5) Men should not be permitted to walk on hatch coamings, deck rails, etc. (6) Men should not slide down ropes but should use the ladders provided. (7) Defective or broken crates or cases should be called to the Attention of foremen so that employees shall not be injured by protruding nails or metal straps. (8) Ship's crew shall not be permitted to work in the rigging over the heads of men working in the hold, or deck or on the dock. (9) Cargo shall not be stowed to prevent a safe handhold or foothold on ladders. Stiff leg portable or some other suitable ladders, securely lashéd, shall be provided where it is impossible to use the permanent hold ladders. LEGISLATION: UNITED STATES OF AMERICA 205 (10) Where electric trimmers are used for bulk cargo, the electric conductor should be disconnected before lowering into hold of ship; then, with current shut off, the conductor should be secured to the trimmer. The current should be cut off the trimmer before disconnecting the conductor and t h e conductor removed before hoisting the trimmer. The thought to keep in mind is t o keep the conductor in good shape, free from chafing, and in every way possible prevent open spark in the ever-present dust of bulkcargo operations. (11) Ladders should be provided for men getting down from high tiers in terminals or on lighters. Jumping or climbing down on protruding pieces of lumber from tiers should be strictly prohibited. SECTION V. HOISTING AND LANDING D R A F T S Part A. Signalling (1) Gangwaymen or anyone occupying a similar position, should not give signal to hoist or lower any draft unless properly slung. (2) Hatch tenders and gangwaymen should be instructed not to give signal for hoisting or lowering a draft until all men are clear of the draft. (3) Winch operators should be definitely instructed that they must take signals only from one properly authorised and designated signalman. (4) Where work can be safely performed, it is understood t h a t nothing in the aforementioned recommendations are to be construed as making it necessary that a definite person be employed as signalman, hatch tender, or gangwayman. Part B. General (1) When drafts are to be landed in the wings, employees should be instructed to push and not pull the draft. (2) Hooks on end of fall lines should not be swung from man to man prior to hooking up or after draft has been released. T h e hook should be passed from man to man or carried out to the square of the hatch. (3) Drafts of lumber, dunnage, pipe, or cargo of similar character should be hoisted with a bridle sling whenever practical, t o prevent short or unbound pieces falling out of draft. (4) Crane operators should exercise care in moving or hoisting any load in bridle slings until load is properly centred. (5) Longshoremen should not be permitted to land drafts on broken or defective hatch covers or on hatch covers not properly supported. When necessary, a skid or some other protection should be used to prevent damage to tween-deck covers. (6) Bales of cotton, wool, cork, gunny bags, or other similar articles shall not be hoisted by single hooks attached to the bands 204 SAFETY IN DOCK WORK or fastenings of such bales. Double hooks shall be used at all times. (7) No person shall be permitted to stand between the load and fixed objects, such as stanchions, or other cargo, and when using a bull line to move cargo, stand out of the bight and clear of the throw of the load and hook. (8) Longshoremen landing drafts of steel rails, bundles of steel, pipe, etc., should not place their hands on the draft. A rope lanyard should be thrown around it and used to assist in landing the draft. (9) Drafts landed in net slings should be dumped slowly to prevent cargo from breaking out suddenly and striking the men standing in the clear. (10) Longshoremen should not be permitted to reach upward for a descending load. (11) Drafts should be lowered to within landing distance before longshoremen t a k e hold of them for landing. (12) When draft is being landed, men should keep their feet well away from under. When guiding a draft they should keep in a safe position to avoid being struck by it. (13) Gangwaymen should be instructed that all drafts dragged from the wings are to be stopped in rest position under the head of the boom before being hoisted. (14) A safe and secure place should be provided for the hatch tender to work. There should be no temporary obstructions in his path from the hatch to the ship's side. (15) In hoisting lump coal or similar bulk cargo in baskets, tubs, etc., containers should not be filled above the rim. (16) A draft shall not be lifted with a chain that has a kink in it. The chain shall be straightened before the lift is made. (17) Winchmen must not be permitted to sit while operating, unless seats are made of good strong lumber and securely lashed. (18) No winch driver should leave his winch while steam is on, but should first shut the steam off at the valve ahead of the throttle. (19) When sending empty board slings with fixed ears, in or out of the ship, on edge, the spreader hooks should be inserted from the outside so t h a t the board can move up and down on the shank of the hook instead of the horn. This will prevent losing the board off the hooks. SECTION V I . SPECIAL R U L E S FOR DANGEROUS CARGO Part A. Explosives and Inflammables (1) The handling of all explosive cargoes or merchandise should be done in accordance with the established codes and rules of the Federal, State, and local governing boards of underwriters. (2) All men engaged in the handling, hoisting, stowing, and supervision of explosive, combustible, and inflammable merchandise as well as all others on ships engaged in such traffic, should be prohibited from smoking and should be required to rid their persons of all matches or other flame-producing equipment, before entering upon the work. LEGISLATION: UNITED STATES OF AMERICA 205 (3) In all instances where explosive or combustible merchandise or cargo is being handled in any way, open lights should not be permitted in or about the ship, docks, or wharves and only approved lights and equipment of explosion-proof design should be used. (4) In the loading of explosive merchandise in packaged form where chutes are used, the chutes should be constructed only of wood and all fastenings thereon should be of wooden pins or dowellings or pegs. If metal fastenings are used, they should be countersunk. (5) The bottoms of chutes should be provided with a stuffed mattress 4 feet wide, 6 feet long, and not less than 4 inches thick. (6) In chuting packaged explosives, care should be exercised to see that the angle of descent of chute is such as to prevent excessive shock or bumping of packages and men should be warned not to allow cases or packages to be so bumped or shaken. (7) In the tiering of packaged explosives, every possible care should be taken to prevent the dropping of cases and packages and means taken to prevent all shocks. Part B. Caustic and Corrosive, Noxious and Irritating Materials (1) In handling soda ash, sodium carbonate in bags, the men shall be furnished by the contractor with suitable overalls, socks, and gloves. At the completion of each period of work, the men are to be compelled to wash the exposed parts of their body with 2 per cent, solution of acetic acid. The protective clothing must be laundered after each wearing. (2) Longshoremen shall wear (a) approved goggles when handling cargo liable to injure or irritate the eyes; (b) respirators of an approved type when handling cargo liable to injure or irritate the respiratory passages and lungs. When goggles and respirators are required, they shall be provided by employer. (3) The handling of all chemical cargoes or merchandise should be done in accordance with the established codes and rules of the Federal, State, and local governing boards of underwriters. Part C. Handling of Rails (1) All rails loaded aboard barges or lighters should be stowed and not dumped. Scantlings should be placed between each tier. (2) Rail forks should be furnished and used by all employees working on lighters or in the holds of vessels. (3) Short regular rail chain slings should be used when hoisting. (4) Employees landing drafts of rails in the holds of vessels should not attempt to land draft before placing a lanyard around end of draft to prevent spreading. At no time should employees place their hands on a draft of rails before lanyard has been secured to the end of the draft. (5) Until such times as a smooth floor surface has been established in the stowing of rails, a shovel or a similar instrument should be used for riding end of draft back from first landing position until it reaches lowering position on scantling where chain sling is to be removed. 206 SAFETY IN DOCK WORK Part D. General (1) In unloading ore, undermining or walling should not be permitted. (2) Before men are permitted to enter or work in stowage spaces or ships' tanks in which explosive,' poisonous, noxious, dusty or gaseous cargoes have been carried, such spaces should first be thoroughly ventilated and made gas free. SECTION VII. MOTOR VEHICLE AND H A N D T R U C K OPERATIONS Part A. Traffic Planning (1) When practical, a system of one-way traffic or circular traffic should be established for dock trucking. (2) When practical, regular traffic gangways should be established. (3) All vehicles should follow designated traffic lanes. (4) Watchmen should be given designated areas and held responsible for keeping gangways open. Part B. Hooking on, Loading and Unloading (1) When making a coupling between trucks, care should be exercised to see t h a t hands or other portions of the body will not be caught in the operation. (2) Cargo should be loaded on hand trucks in a safe manner. Part C. Transporting (1) Tractors, tractor cranes, burden trucks, and hand trucks should, be operated in a safe and careful manner, and tractors should be slowed down or come to a halt when there is a possibility of injuring an employee. (2) Fall of tractor cranes, when without load, should be secured. (3) Trailers should be checked when heavy pieces of cargo are being loaded or unloaded when there is a possibility of rolling. Part D. General (1) No employees not engaged in the regular line of duty shall be permitted to ride on tractors, trailers. (2) Switch shall be pulled out before connecting or disconnecting batteries of electric tractors to the charging board. (3) Warning signs should be posted indicating vehicle's speed to be limited to 5 miles per hour, on premises, and watchman instructed to enforce these instructions. (4) All gear and equipment not in use or in motion shall be kept clear of traffic gangways. (5) All tractors shall be equipped with efficient brakes and warning devices, which should be kept in good working order. Operators of tractors and cranes shall test the brakes and steering gear, etc., before starting work. All cranes shall be equipped with a rear vision mirror. LEGISLATION: UNITED STATES OF AMERICA 207 (6) The frames of all hand trucks should be so constructed that small objects will not fall through. (7) Where gas-fuelled tractors are permitted to work in confined areas lacking free circulation of air, some practical system should be installed to eliminate carbon-monoxide poisoning. (8) When gas-fuelled tractors are being refuelled, ignition switch should be kept off. (9) Refuelling of gas tractors, etc., should be done before starting operations for the day, in other words at morning and in lunchhour periods. (10) All refuelling of gas tractors, etc., should only be done at some designated point, preferably outside of the pier shed. (11) In lieu of permanent or portable gas pumps, only approved safety type cans with flexible nozzles should be used for refilling gas tanks. SECTION VIII. F I R S T A I D AND H Y G I E N E Part A. First Aid (1) Notices shall be exhibited in prominent positions at every dock, wharf, or quay, by each employer using it, stating: (a) The position of the first-aid kit, and the name of the person in charge thereof; (b) Name, address, and telephone number of company's physician, and hospital. (2) An approved first-aid kit shall be maintained on each dock. As far as possible, someone employed around the dock should be trained in first aid in order that immediate assistance may be given. Part B. General (1) At all places where men are employed, good drinking water in covered clean utensils or devices shall be conveniently available. (2) At least one conveniently accessible toilet, either on board the vessel, or on the wharf or other place where the vessel is moored, shall be available at all times for the use of every person engaged in the operations. Such toilets shall be kept clean and in good order. SECTION IX. INVESTIGATING AND REPORTING ACCIDENTS Part A. Notifying Supervisors and Authorities (1) An injury of any kind, irrespective of its severity, shall be reported immediately to the foreman, by the injured person if he is physically able to do so. If the injured person is physically unable to report the injury, then it shall be reported by any person in possession of the facts. The foreman shall see that the injured party is given immediate first-aid treatment. 208 SAFETY IN DOCK WORK Part B. Fact Finding (1) Upon the occurrence of a personal injury the foreman or man in charge shall investigate and determine the cause of the accident. Part C. Reporting and Recording (1) The pertinent facts of accident occurrence shall be recorded on a suitable form for purposes of analysis and prevention. (2) Accident facts shall be analysed and summarised at periodical intervals so as to develop trends and major causes and remedies. SECTION X. GENERAL Part A. Safe Wearing Apparel (1) Gloves that are suitable and in good condition should be worn by longshoremen handling undressed lumber, metal sheets, or any other rough-edged or sharp material. (2) Longshoremen should wear good, stout shoes, without holes in soles, and preferably with reinforced toe caps, but without rubber heels. Part B. Mechanical Safeguards (1) All winch working parts exposed to workmen and gear must be properly guarded and all exposed steam and exhaust pipes, as well as other hot surfaces, must be protected. (2) The pin of all shackles should be so secured that it would be impossible t o work out. (3) All projecting set screws on moving parts should be removed or countersunk or headless set screws should be used. No part of the set screw should project above the surface. (4) Dangerous portions of docks shall be properly fenced until repairs are made. (5) All ladders shall be kept in good repair and in a safe condition. Part C. General Safe Practice (1) Smoking should not be allowed aboard ship in the vicinity of open hatches, on the dock, or in the warehouse. (2) Any employee under the influence of alcohol or other drugs shall not be allowed to remain on the job. (3) When necessary to move suspended loads, or trucks and dollies by hand, employees should push rather than pull them. (4) Longshoremen should use leg and thigh muscles instead of back muscles when lifting and proceed to lift from a squatting instead of a bending position. (5) Any cargo found to be broken shall be set aside a safe distance away from the working area so the cooper or designated cargo man can repair without danger to himself or fellow workers. (6) When repairing cases of rubber, tea, or other commodities bound with tin or steel strapping, the cooper shall use a glove while holding down the strapping to be nailed. LEGISLATION: UNITED STATES OF AMERICA 209 (7) Noise of chipping on outside of hull or on the deck above, while men are working below, creates a real hazard in that it prevents the men working in the hold from hearing the signals of the hatch tender. If possible, such work should not be carried on while ship is being loaded or unloaded. (8) Men should not be sent into holds or compartments that have been fumigated until permission is given by the fumigation authorities. (9) Tools,equipment, or materials should not be carried by hand when climbing or descending a ladder. Hands should be free for grasping side rails. (10) Employees after checking out at the end of a work period shall not be permitted to return to the vessel or to the dock witln out permission of the Superintendent. Part D. Systematic Safety Organisation The observance of the safe practice rules in this code requires t h a t they be known and understood, that there be agreement as to their value and practicality, and that the effort to prevent accidents be continuous. Interest and desire to achieve results must be aroused and maintained. Systematic effort as indicated by some practical form of "safety organisation" is highly beneficial in accomplishing satisfactory results. Pacific Coast Marine Safety Code 1 STEVEDORING OPERATIONS ON BOARD S H I P SECTION 1. SCOPE, PURPOSE, EXCEPTIONS, AND D E F I N I T I O N S Scope Rule 1. This code applies to all cargo handling and stevedoring operations aboard ship and covers all operations, persons, employees, employers, and vessels included under the Federal Longshoremen's and Harbor Workers' Compensation Act in the States of the Pacific Coast. Purpose and Exceptions Rule 2. The purpose of this code is to provide reasonable minimum requirements for safety of life, limb, and health. In cases of practical difficulty or unnecessary hardship an employer may make exceptions from the literal requirements of this code, or permit the use of other devices or methods, but only when it is clearly evident that equivalent protection is provided. Any exceptions for an employer shall be referred first to his District Code Committee ; if the proposed exception is approved by his committee, it shall be forwarded to the general chairman of the Pacific Coast Safety Code 1 Developed under the sponsorship of the Pacific Coast Marine Associations' Accident Prevention Bureau, 1929-1934. 210 SAFETY IN DOCK WORK Committee, who shall take a referendum vote by mail of the entire Code Committee. Special port or district rules can be adopted by the Code Committee by means of the same procedure provided for employer "exceptions" above. Where an exception for any company is made to a given rule, according to stipulated conditions, it is not necessary that each company petitioning thereafter be given formal consent by vote of the entire Code Committee, but such exception may be granted within any district if it meets the approval of the District Code Committee and the general chairman. Mandatory and Advisory Requirements Rule 3. The word "shall" is to be understood as mandatory and the word "should" as advisory. Definitions, (a) General Rule 101. The term "Commission" means the United States Employees' Compensation Commission. Rule 102. The term "Deputy Commissioner" means the Deputy Commissioner of the United States Employees' Compensation Commission having jurisdiction in respect of an injury or death. Rule 103A. The term "Code Committee" refers to a standing committee which is hereby created to consist of 13 members as follows: Three each, chosen from both employers and employees as far as possible, from the following districts: (1) Washington ports; (2) Oregon, including Columbia River ports; (3) San Francisco Bay; and (4) Los Angeles Harbor District and San Diego, and a general chairman to be elected by the Committee. The function of this Committee shall include the approval of a final draft of this code, and the approval of subsequent exceptions or amendments, and of any proposed port rules. Rule 103B. The term "District Code Committee" refers to a committee to be chosen from the districts prescribed in Rule 103A, consisting of three members to be chosen from employers and employees as far as possible. Rule 104. T h e term "State" includes a Territory. Rule 105. The term "person" means an individual, partnership, corporation, or association. Rule 106. The term "employer" means an employer, any of whose employees are employed in maritime employment, in whole or in part, upon the navigable waters of the United States. Rule 107. The term "operations and stevedoring operations" means the operation of loading, unloading, moving or handling cargo, ship's stores, gear, etc., in, on, or out of any ship and all activities incidental thereto at any port, dock, wharf, pier, jetty, harbour, river, canal, or any other place, and included under the jurisdiction of the Federal Longshoremen's and Harbor Workers' Compensation Act. Rule 108. The term "vessel" means any floating structure used in navigation, or for transporting commerce, upon the navigable waters of the United States. LEGISLATION: UNITED STATES OF AMERICA 211 Rule 109. The term "cargo" as defined for the purpose of this code includes all goods or merchandise transported by vessel and also all ship's stores, gear, etc., which may be moved in, on, or out of any vessel. Rule 110. The term "contracting stevedore" means the person, firm, or corporation, contracting with the shipowner or his agents, to carry on stevedoring operations as defined herein; or any person, firm, or corporation engaged in stevedoring operations. Rule 111. The term "general foreman" means the person employed to supervise the stevedoring operations. Rule 112. The term "gang foreman" means the person employed to supervise a gang of longshoremen in the stevedoring operations. Rule 113. The term "hatch tender" or "gangwayman" means the person employed to supervise all the hoisting and lowering operations of handling cargo. Rule 114. The term "gang" means a group of longshoremen working as a unit in the stevedoring operations. Rule 115. The term "longshoreman" means any person who is employed for the purpose of loading or unloading or handling cargo or in other operations as defined herein. Definitions, (b) Working Places and Gear Rule 116. The term "boom guy" means the device, consisting of pennants and tackles, attached to the head of the boom or derrick and used for keeping the boom in position for working cargo. Rule 117. The term "bridle" means a device consisting of a ring or shackle from which are suspended two or more pennants of rope, wire, or chain, to the ends of which are attached hooks, shackles, or toggles. Rule 118. The term "bull line or bull rope" means an auxiliary rope or fall worked from a winch and rove through lead or snatch blocks or chocks to move cargo or other objects. Rule 119. The term "deck" means the horizontal plating, planking, or floor covering the transverse beams of a vessel. Rule 120. The term "dunnage" means the material used in stowage for protecting cargo. Rule 121. The term "fall or cargo fall" means the cable used to hoist cargo. Rule 122. The term "gangway or gangplank" means the device used for persons passing from the wharf or dock to the ship or vessel and vice versa. Rule 123. The term "hatch" means the opening in a deck through which cargo, fuel, etc., is passed. Rule 124. The term "hatch cover" or "hatch plank" means the device placed on hatch beams or strongbacks and coamings to cover a hatch. Rule 125. The term "hatch way" means the square of the hatch from the top deck to the hold. Rule 126. The terms "hatch beam fore and after, and strongback" mean the devices used for supporting the hatch covers to close the hatch. Rule 127. The term "Jacob's ladder" means the device consisting of two parallel pieces of rope or wire joined together at 212 . SAFETY IN DOCK WORK intervals by crosspieces of rope, wire, or wood, the whole ladder being flexible. Rule 128. The term "ladder" means an appliance or device consisting of two parallel pieces of wood or metal joined together at intervals by crosspieces called rounds. Rule 129. The term "lead block" means the device consisting of a grooved sheave encased by a shell used to change the direction of the lead or line. Rule 130. The term "machinery" means the contrivances or machines, such as conveyors, motors, capstans, winches, windlasses, tractors, jitneys, etc., used in the operations. Rule 131. The term "passageway" means a path or clear space other than a gangway or ladder through which persons or cargo are to be passed or moved. Rule 132. The terms "pennant or pendant" mean the piece of wire or rope to which tackles, etc., are attached or suspended to shorten the length of the tackle and to cut down unnecessary amount of rope otherwise used in said tackle. Rule 133. The term "preventer guy" means the device consisting of a temporary auxiliary rope or wire attached to the head of the boom or derrick to relieve the boom guy of excessive strain in handling heavy drafts of cargo. Rule 134. The term "shackle" means a U-shaped device of iron or steel with a pin through the ends used to secure the ends of guys, falls, topping lifts, etc., to ringbolts or cleats. Rule 135. T h e term "ship's gear" means the devices used in the operations, such as booms, derricks, falls, guys, slings, etc., and supplied and carried by the vessel for the purpose of working cargo. Rule 136. T h e term "sling" means a device made of rope, wire, canvas, chains, boards, or other material used to hold cargo for the purpose of hoisting it. Rule 137. The term "sling load or draft" means that part of the cargo held by the sling. Rule 138. The term "stevedoring gear" means the devices used and furnished by the stevedoring contractor. Rule 139. The term "stowage" means the proper placing of cargo on or in vessels. Rule 140. The term "topping lift" means the wire or rope attached to the boom head and mast or Samson post or other fixed object by means of which the boom or derrick is raised, lowered, or suspended. Rule 141. The term "tween deck or tween decks" means an intermediate deck situated between the main deck and the hold. Rule 142. The term "set-up" means the manner in which the entire standing and running gear is rigged for one gang to work cargo. SECTION 2. RESPONSIBILITIES AND D U T I E S UNDER THE CODE Rule 201. The vessel, its owner, master, and officer in charge shall be severally and jointly responsible for the safe condition of the ship's gear and equipment, and for the competency of any LEGISLATION: UNITED STATES OF AMERICA 213 ship's officer or member of the crew who may engage in operations covered by this code. They shall provide, so far as the same shall be under their control, a safe working place upon the vessel for all operations carried on upon it. Rule 202. The contracting stevedore is responsible for the proper and safe condition of all stevedoring gear supplied by it, and for the competency of foremen and other persons supplied by it in charge of operations. Rule 203. The duties of the general foreman are: to see that all gear is in apparent good safe working condition during the stevedoring operations. He is in charge of all stowage and handling of cargo. He should see that stevedoring operations are carried on in a safe manner. Where conditions warrant, and he is not in immediate touch with his superior officers, he should stop work if necessary to avoid accidents. Rule 204. The duties of the gang foreman are: to be in direct charge of his gang, to supervise all the stevedoring operations in connection therewith, and to see that all work is done in a safe manner. He shall report promptly to the general foreman any defect in the gear or any unsafe working condition. In the event that the gang foreman or hatch tender, upon discovery of defective gear, should find it impossible to get in touch immediately with the general foreman, he shall himself stop work, if necessary, until the general foreman shall have had opportunity to pass upon the situation. Rule 205. The duties of the hatch tender or gangwayman are: he should be familiar with the deck stevedoring operations and be capable of rigging booms, derricks, and other deck gear for the proper hoisting or moving of cargo. Before commencing to hoist cargo, he should, in conjunction with the gang foreman, see that the boom topping lifts and boom guys are properly secured and the save-all made fast ; that pins in shackles on all cargo gear are properly fastened; that the space from the hatch coamings to the ship's side is clear for working cargo and the hatch beams, strongbacks, fore and afters, and hatch covers which are removed, stowed on deck in a safe, orderly m'anner; and inspect generally, as far as possible, all running gear for any defect or unsafe working condition. He shall see that the cargo is properly slung before being hoisted and shall control the movements of slingloads or drafts by positive signals to the winch driver. He should keep the slingload or draft in sight when being moved, and warn all persons in danger of being injured by the movement of cargo. Whenever operations are suspended or terminated, he shall see that the hatch covers are on, or safety lines are stretched around hatch coamings, and rope stretched across side rail opening or side rails properly shipped, if the appliances are supplied by the vessel, or unless the d u t y has been assumed by the vessel. He shall be held responsible, together with the gang foreman, for the safety of the men during the operations. Rule 206. The duties of the winch driver are : to see before starting hoisting operations that the winch is free from water, t h a t the cargo fall is in good order and properly secured to the winch drum, 214 SAFETY IN DOCK WORK and that the winch is in good order, reporting any defects to the gang foreman. He shall take signals only from the hatch tender, if a hatch tender is used, for the operation of the winch, and shall at all times operate the winch or winches in a safe manner. If the winches are not properly oiled, he shall report same to his foreman. When leaving winch unattended, he shall see that the power is turned off. Rule 207. The duties of the longshoremen, in addition to those presented elsewhere in this code, shall be to use the safety devices provided, to practise the safety methods prescribed, and to cooperate in all t h a t makes for safety. SECTION 3. GENERAL SAFETY RULES Rule 301. All gears and friction drives, wherever located, should be completely encased. Where, in the case of gears, this is impracticable, a band guard should be provided with side flanges extending inward beyond the root of the teeth. Rule 302. Where there is a spoke hazard, the spokes should always be covered on exposed side. Rule 303. All sprocket wheels, wherever located, should be completely encased. Rule 304. All projecting set screws on moving parts should be removed, or countersunk, or headless set screw should be used. No part of the set screw should project above the surface. Rule 305. Shaft keys, unless enclosed by the housing of the machine, should be flush or protected with cylindrical safety sleeves, or completely enclosed. Rule 306. Shields or screens should be provided which will prevent contact with crank, connecting rod, valve rod, steam jam cylinder, or other moving parts. Rule 307. Removal of existing protective appliances during stevedoring operations is strictly prohibited. Rule 308. If tools, materials, appliances, or any gear are at any time found to be out of repair, defective, or in any way unsafe, employees shall report the same immediately to the person in charge of the work. Rule 309. Where an edge of cargo or of a landing platform is exposed and there is danger of falls of persons, the edge should be guarded by a life line. Rule 310. Winches, conveyors, belts, and all driving gear may be lubricated while in motion only when this can be done by means of suitable contrivances, without danger. Rule 311. Lubricating and oiling while a machine is in motion may be done only by persons authorised to do so. Rule 312. Cleaning of machine parts may be done only while the machine is not in motion. Rule 313. Transferred to and made a part of Rule 525. Rule 314. Employees shall do everything possible to prevent fires. Smoking is prohibited. Rule 315. Entering dark holds, decks, or compartments without a light is prohibited (see Rules 410 and 411). LEGISLATION: UNITED STATES OF AMERICA 215 Rule 316. Naked lights are prohibited in stevedoring operations aboard ship (see Rules 410 and 411). Rule 317. No-one shall be allowed to turn to or remain on the job if under the influence of intoxicating liquors. SECTION 4. GENERAL WORKING CONDITIONS Reporting of Injuries Rule 401. An injury of any kind, irrespective of its severity, shall be reported immediately to the foreman, or man in charge, by the injured person if he is physically able (if the injured person is physically unable to report the injury, then it shall be reported by any person in possession of the facts). The foreman, or man in charge, shall see that the injured party is given immediate firstaid treatment and that the injury is reported promptly to the employer. First Aid Rule 402. An approved first-aid kit shall always be immediately available when and where operations are being carried on. The first-aid kit shall be in charge of, and maintained fully stocked by a designated attendant who shall be trained to render first aid to the injured. The first-aid attendant should always be available to give immediate assistance. One or more stretchers shall be available at places where operations are being carried on, to be furnished by the vessel or by the dock operators. Rule 403. At each major port there shall be provided by some appropriate port organisation, facilities for the formation of a firstaid corps, and for the training of persons employed who wish to qualify to render first aid. Rule 404. Notices shall be exhibited in prominent positions at every dock, or wharf, stating: (a) The position of the first-aid kit, and the nam? of the person in charge thereof. (b) The telephone number of emergency hospital or ambulance service. (c) Name, address, and telephone number of company's physician and hospital. Rule 405. One or more life buoys for the rescue of drowning persons shall be maintained at each dock. Clean Drinking Water Rule 406. At all places where operations are being carried on, good drinking water in covered clean utensils or devices shall be conveniently available. Toilets Rule 407. At least one conveniently accessible toilet, either on board the vessel or on the wharf or other place where the vessel 216 SAFßTY IN DOCK WORK is moored, shall be available at all times for the use of every person engaged in the operations. Such toilets shall be kept clean and in good order. Decks, Floors, and Passageways Rule 408. All decks, floors, and other places, where persons are engaged in the operations shall, as far as possible, be kept clean and free from dust, litter, and slipperiness. Grease, oils, etc., spilled where stevedoring operations are being carried on shall be immediately covered by sand or other suitable material. Rule 409. Transferred to and made a part of Rule 408. Rule 410. General foremen shall not permit operations on or in ship's decks, holds, or other places, unless adequately lighted (see Rules 315, 316, 906 and 1009). Rule 411. One or more lights shall be kept burning on the dock near the gangplank or other entrance to the ship after dark while ship is tied up to dock (see Rules 315 and 316). Rule 412. Passageways on dock shall be kept clear from tackle end of ship's gear to shed, to give ample room for hooking or landing loads or drafts, except when working cars direct to or from ship. Rule 413. Where men are to be required to work in a space below a deck where cargo is stowed, the said cargo in said deck shall be so stowed as to have clear space of 3 feet around hatch coaming of said deck for handling hatch covers. Rule 413B (new). Where it becomes necessary to stow deck loads closer than 3 feet to a hatch coaming, life line shall be rigged for safety of men handling strongbacks and hatch covers. Access to Vessels Rule 414. When a ship is lying at a dock, there shall be provided at all times a safe means of going to and from the ship consisting of a gangplank or other equally adequate method. All persons going to and from the ship must use this equipment. "Shortcuts" over side, via cargo slings, save-alls, moving conveyors, etc., are prohibited. Rule 415. Where a gangplank is reasonably practicable, a gangplank not less than 22 inches wide shall be provided and properly secured to the ship. Such gangplank shall be provided with a 2-rail railing on each side; such railing shall be not less than 3J/£ feet high; the upper and lower rails to consist of wood, taut ropes or chains, or other equally safe devices. Rule 416. In other cases a ladder shall be provided which shall be of sound material, of adequate length, and properly secured to prevent slipping. Rule 417. If a ship, boat, or other vessel is alongside any other ship, boat, or other vessel, and persons employed are required to pass from one to the other, a safe means of access shall be provided by the ship, boat, or other vessel which has the higher freeboard. _ Rule 418. When working barge, scow, raft, or log boom alongside ship, a Jacob's ladder, or its equivalent, properly secured, shall be provided and used for each separate unit of operation. LEGISLATION: UNITED STATES OF AMERICA 217 Hold Ladders Rule 419. Ladders shall be provided in all holds where employees are engaged in stevedoring operations. Where it is impracticable to use a ladder, an equivalent safe means of escape shall be provided. Rule 420. Ship's ladders providing entrance to and exit from holds shall be kept in repair and in safe condition. Rule 421. Hold ladders shall be kept clear, and no cargo stowed within 6 inches from inside rungs of ladders. If cargo is so stowed that it is not possible to use permanent hold ladders, portable ladders shall be provided and properly secured. Winch Operations Rule 422. A place provided for winch drivers to stand or sit shall be kept in good order and all means taken to prevent slipping and falling of seat of driver. Rule 423. The ship's gear should be so rigged as to protect the winch driver against swinging loads. Rule 424. All winches operating with a single lever shall be counterbalanced by a weight properly secured. Rule 425. Extensions on operating levers of winches, of substantial material, where necessary, shall be furnished by the ship, and securely attached to the regular lever. Noxious Cargo Rule 426. Longshoremen shall wear (a) approved goggles when handling cargo liable to injure or irritate the eyes; (b) respirators of an approved type when handling cargo liable to injure or irritate the respiratory passages and lungs. Rule 427. When such goggles and respirators are required, same shall be provided by employer. Rule 428. Strict care should be exercised when entering holds that have been recently fumigated. SECTION 5. SAEE PRACTICES A. Preparations of Hatch and Decks for Cargo-Handling Operations Rule 501. No cargo shall be worked through a section of a hatch unless the strongback of section adjacent to uncovered portion of hatch is bolted to hatch coamings, or otherwise secured or removed. Rule 502. No cargo shall be hoisted from hatch until hatch covers and strongbacks are off and stowed clear of working gear, except such cargo as must be removed to clear beams. Rule 503. Strongbacks and hatch covers shall be so stowed as not to interfere with a safe walkway for hatch tenders from rail to hatch coaming, and so that drafts or gear cannot tip same into hatches or over ship's side. 218 SAFETY IN DOCK WORK Rule 504. Foremen or hatch tenders shall personally supervise the taking off or placing of hatch covers, strongbacks, and beams. Booms shall not be raised or lowered except under the immediate supervision of the man in charge of gang. Rule 505. When employees are below, they shall stand in the clear while strongbacks, hatch beams, and hatch covers are being taken out or put in place. Rule 506. Sling loads or drafts of dunnage shall not be handled over the heads of longshoremen. Where practicable double slings should be used. Rule 507. Where temporar}' deck stage is used for the purpose of loading or unloading ships, such stage shall be strongly built and securely fastened. Rule 508. When it is necessary to work cargo on a1 skeleton deck, safe decking shall be provided unless the workmen can work safely from the cargo stowed below such skeleton deck. Rule 509. Employees shall never ride strongbacks or beams; nor shall they unnecessarily walk or climb upon them while in place. Rule 510} When working cargo over a deck load, a safe walkway shall be provided for the hatch tender from rail to coaming. When this is impracticable, two hatch tenders shall be used. Rule 511} Deck loads shall be so stowed as not to interfere with safe operation of winches or to permit loose material falling into hatches or overside. B. Rigging of Ship's Gear for Cargo-Handling Operations Rule 512. Longshoremen should not be hoisted aloft except by hand power; booms should be lowered to deck for changing gear or making necessary repairs. Rule 513. The winch fall should be so wound that the lever shall have the same direction of operation as the load being handled. Winches hereafter constructed shall be made so that they can be operated as above recommended. Rule 514A. The boom guys and preventers should be kept as far away from the heel of the boom as possible, but not past the line of the fall. They shall be made fast so as to divide the strain on both. Preventers should be made fast around the head of the boom independent of all other fastenings. Booms shall always be so topped as to avoid undue strain on both boom and topping lift. (Special caution where samson or derrick post is low.) In all "setups" the dragging of one fall against the other without plenty of sag is positively dangerous and should be avoided. Rule 514B (amended). When winch controls are located so as to expose winch driver to bight of the fall, an additional preventer shall be placed on the lead block at the heel of the boom. The preventer shall be no less than Y% inch wire cable and preferably % or larger. Rule 515. Measures shall be taken to prevent steam from, or to, any crane, winch, or other appliance obscuring any part of the 1 Interpretations, Rules 510 and 511: "Special attention of all responsible for stowage of deck loads of lumber and logs is hereby called to the serious hazards which some of the present practices have created". LEGISLATION: UNITBD STATES OF AMERICA 219 decks, gangways, stages, wharf, or other place, or otherwise hindering or injuring any person employed in the operations. C. Handling of Cargo and Practices Incident Thereto Rule 516. Riding cargo hook is prohibited; however, in emergencies, and under safe working conditions, specially prepared slings may be ridden in and out of the holds, under the order and direct supervision of the foreman. Rule 517A. Sling loads shall not be held suspended over men's heads, either on dock or ship; standing or working under hanging loads is prohibited. Rule 517B. Slings loads that are improperly slung shall not be hoisted. Rule 518. No cargo shall be loaded or unloaded by a fall or sling at any intermediate deck unless either the hatch at that deck is safely covered, or a secure landing platform of a width not less than that of one section of hatch coverings, has been placed across the hatch. Rule 519. Blocks, crow bars, chain slings, and other heavy equipment shall not be thrown from deck to ship's hold or from deck to dock. Rule 520. While working cargo which may shift or roll on workmen, the cargo shall be secured or blocked. Rule 521. All cargo raised by hoisting gear' shall always be carefully secured against falling or spreading. Where practicable double slings should be used on small lumber. Rule 522. In hoisting lump coal or similar bulk cargo in baskets, tubs, etc., containers should not be filled above the rim. Rule 523. When assisting to steady or land a load, longshoremen should not stand between the load and any fixed object, and shall always face the load. Loads shall not be lifted from cars or docks when men are standing between load and ship. Rule 524. When using a bull line to move cargo, the longshoremen should stand out of the bight, and clear of the throw of the lead and hook. Rule 525. A sling load or draft shall not be lifted with a chain having a kink in it. A chain shall not be shortened by wiring or tieing. Chains shall not be repaired, even temporarily, by bolting two links together or by the use of wire. Rule 526. Each employer shall employ for every hatch or set of winches being operated a signal man, gangwayman, or hatch tender (see also hatch tenders' duties, Rule 205). Rule 527. The riding of moving conveyors, other than of mechanical stevedores, escalators, or other devices especially designed for transportation of men, is strictly prohibited. Such special devices as are permissible for transporting men in and out of vessels, may be ridden only when the driver is at the controls and can stop the device. Rule 528. Two men shall be required on a log boom for each unit of operation. Life lines shall be furnished hanging overside to water's edge. - . 220 SAFETY IN DOCK WORK Rule 529. Men trimming bulk cargo are to be checked in and out of the hold. Rule 530. Electric trimmers used for bulk cargo containing explosive dust shall be disconnected from conductors before being lowered into hold of ship; the electric current shall be kept shut off while conductors are being secured to or disconnected from the trimmers. Rule 531. When men are working in the square of the hatch, bales of cotton, wool, cork, gunny bags, or other similar articles shall not be hoisted by hooks attached to the bands or fastenings of such bales. Rule 53IB (amendment to Rule 802, and applicable to all ports). Where two gangs are working in the same hatch on different decks, a skid, preferably, or at least a net, should be rigged from lower strongback and securely fastened above over-hatch coamings so as to prevent the possibility of men or cargo from falling on men below. Rule 531C (new). Where cargo is stowed on or in any deck above lower hold, such cargo shall be adequately secured to prevent it from falling on men working below the deck on which such cargo is stowed. D. Preparation of Hatch and Deck at Suspension of Cargo Handling Rule 532. When work in a hatch is finished for the day, upper deck hatch covers or approved night hatches, shall be on, or safety lines stretched around, the hatch coamings (see Rule 205). Manholes and other deck openings should be protected in a safe manner. SECTION 6. S H I P ' S G E A R Rule 601. All bridles for removing strongbacks or beams from hatch coamings shall be of sufficient length so that strongbacks can be hooked on without necessitating climbing out on them to do so; shackles or toggles are recommended in place of hooks for handling strongbacks. Hand lines shall be attached of adequate length for use in preventing swinging of hatch beams and strongbacks. Rule 602. All boom guys and gin blocks shall be secured by shackles. Rule 603. When deck loads of lumber extend above the bulwarks, there should be a pennant of sufficient length to preclude sending a workman down ship's side to secure or release the boom guy from the deck ring bolt. Rule 604. The ship shall furnish a sufficient number of approved topping lift stoppers where necessary for safely shifting derrick topping lifts. Rule 605. Cargo booms should be tested and have approved capacity plainly marked in a conspicuous manner and place, preferably at the heel of the boom. Rule 606. Cargo falls or ship's hoisting gear shall not be used to move railroad cars on docks. LEGISLATION: UNITED STATES OF AMERICA 221 Rule 607. Hatch rollers shall be so constructed that they can be firmly attached or secured to hatch coamings. Rule 608. Broken, split, or ill-fitting hatch covers shall at once be discarded or repaired. All hatch covers, and fore-and-aft and thwart-ship beams shall, insofar as they are not interchangeable, be kept plainly marked to indicate the deck and hatch to which they belong and their position therein, and a licensed ship's officer should be present and responsible for the proper covering and uncovering of all hatches. Sufficient hatch covers of proper dimensions to insure a tight cover for each deck shall be supplied at all times during operations. Rule 609. Adequate handgrips shall be provided on all hatch covers, having regard to their size and weight. Handgrips shall not be secured by means of wood or lag screws; where bolts are used, ends of same shall be riveted. Rule 610. Deflectors shall be used on openings from ships emitting waste water or matter interfering with the operations, or affecting the health of longshoremen. Rule 611. Inspection of ship's cargo gear should be made by the ship's crew before gear is used for stevedoring operations. The crew should give all assistance possible to maintain properly ship's cargo gear while in use. Rule 612 (new). Ship's cargo hoisting falls or whips shall not be used for mooring or shifting ship. SECTION 7. STEVEDORING G E A R Rule 701. Wire bridles shall have a covering of marline, rubber hose, or other suitable protection for men's hands over hook splice. Rule 702. Save-alls shall be stretched, hung, and safely secured to vessel and dock, in line with each hatch when general cargo is being worked. Rule 703. If tools, materials, appliances, or any gear are at any time-found to be out of repair, defective, or in any way unsafe, men shall report the same immediately to the person in charge of the work. Rule 704. Stevedoring gear shall be carefully inspected by a designated and competent employee before being issued for use in stevedoring any ship. Any unsafe or doubtful gear shall be discarded, marked, and so placed that it cannot be used by longshoremen. BIBLIOGRAPHY The literature on safety in dock work is very extensive. The following lists are confined to the principal sources utilised in the present monograph. (1) LAWS, REGULATIONS, STANDARDS International International Labour Convention (No. 27) concerning the marking of the weight on heavy packages transported by vessels, 1929. International Labour Convention (No. 32) concerning the protection against accidents of workers employed in loading or unloading ships (revised, 1932). Central Commission on the Navigation of the Rhine: Regulations for the Transport of Corrosive and Poisonous Substances on the Rhine. Protocoles des Seances. 1934, 1ère session-avril, p. 59; 1936, 2me session-novembre, p. 40. Canada T h e Animal Contagious Diseases Act, 1936. Regulations regarding the Importation of Foreign Hides, Skins, Glue Stock, Bones, Hoofs, Horns (1930). Germany See-Berufsgenossenschaf t : Unfallverhütiingsvor Schriften, 1934. Grosshandels- und Lagerei-Berufsgenossenschaft: Unfallverhütungsvorschriften, 1934. Deutscher Normenausschuss: D.I.N. 685, 2nd edition, Oct. 1935. Great Britain Docks Regulations, 1934 {Statutory Rides and Orders, 1934, No. 279). British Standard Specifications for Ships'' Cargo Lifting Blochs (B.S. 408), 1931. U n i t e d S t a t e s of America Joseph L Ë E M I N G : Modern Ship Stowage, including Methods of Handling Cargo at Ocean Terminals. U. S. Department of Commerce, Washington, 1942. (2) OFFICIAL REPORTS International Report of the Dockers Convention {Reciprocity) Conference, Second Meeting. London, July 1935; see Industrial Safety Survey, Vol. XII, No. 2, 1936, p. 42. BIBLIOGRAPHY 223 British Empire Imperial Economic Committee, Twenty-fourth Report: Hemp Fibres. London, 1932. Germany Jahresberichte des Hamburgischen Gewerbeaufsichtsamis. Great Britain Board of Trade: Report of the Steering Gear Committee. H.M. Stationery Office, London, 1936. Board of Trade: Report of the Departmental Committee Appointed by the Board of Trade to Consider the Existing Board of Trade Memorandum on the Carriage of Dangerous Goods and Explosives in Ships. H.M. Stationery Office, London, 1933. Home Office: Annual Reports cf the Chief Inspector of Factories and Workshops. H.M. Stationery Office, London. Home Office: Report of the Departmental Committee Appointed to Inquire as to Precautions for Preventing Danger of Infection from Anthrax in the Manipulation of Wool, Goat Hair and Camel Hair (Vol. I I I ) . H . M . Stationery Office, London, 1918. Netherlands Verslag der Commissie voor Laad- en Losgerei enz. aan boord van Zeeschepen. Algemeene Landsdrukkerij, 's-Gravenhage, 1932. Verslag der Kettingcommissie, ingesteld bij beschikking van den Minister van Arbeid, Handel en Nijverheid d.d. 19 November 1923. Afdeeling Arbeid, N o . 1216. Algemeene Landsdrukkerij, 's-Gravenhage, 1929. Centrale Verslagen der Arbeidsinspeclie. Jaarverslagen der Havenarbeidsinspectie. (3) SAFETY PAMPHLETS, ETC. Great Britain Home Office: Prevention of Anthrax among Industrial Workers. H.M. Stationery Office, London, 1921. Home Office: Memorandum on Chains and other Lifting Appliances, by G. STEVENSON TAYLOR. H . M . Stationery Office, London, reprinted 1930. Home Office: The Use of Chains and other Lifting Gear, Safety Pamphlet No. 3. H.M. Stationery Office, London, 1933. Home Office: Weight Lifting by Industrial Workers, Safety Pamphlet No. 16. H.M. Stationery Office, London, 1937. Mines Department: The Use of Chains and other Gear for Hauling and Lifting, Safety Pamphlet No. 6. H . M . Stationery Office, London, 1930. Department of Scientific and Industrial Research: The Causes of Failure of Wrought Iron Chains, b y H . J. COUGH, M.B.E., D . S c , Ph.D., and A. J. M U R P H Y , M. S c , Special Report No. 3. H.M. Stationery Office, London, 1928. 224 SAFETY IN DOCK WORK Netherlands Directie van den Arbeid: Ferrosilicium, 1930. by Dr. W. SCHUT, Uitgave No. 26, U n i t e d S t a t e s of A m e r i c a National Safety Council: Fiber Rope, Safe Practices Pamphlet No. 6. National Safety Council: Manilla and Wire Rope, Safe Practices Pamphlet No. 26. (4) UNOFFICIAL PUBLICATIONS International Publications of the International Federation of National Standardising Associations (I.S.A.) concerning shipbuilding details (maritime and inland navigation) (Secretariat: Centraal Normalisatie Bureau, Willem Witsenplein 6, 's-Gravenhage). Canada A. E. CAMERON: Anthrax. Ottawa, 1929. Germany Die Hebezeuge. Elemente der Hebezeuge, Flaschenzüge, Winden und Krane. Hugo Bethmann, Braunschweig, 1903. L. K L E I N : Vorträge über Ilebezeuge. Helwingsche Verlagsbuchhandlung, Hanover, 1922. Oberingenieur Johann W I N T E R : Unfallsicherer Schiffbau. Verlag von Boysen unil Maasch, Hamburg, 1935. Prof. Dr. LEHMANN: Ktirzes Lehrbuch der Arbeits- und Gewerbehygiene. Leipzig, 1919. Great B r i t a i n Captain P. J. STOPFORD, R . N . : Cordage and Cables. Glasgow, 1925. Netherlands Ir. J . E . de V R I Ë S : Hijschwerktuigen. Ruijgrok en Co., Haarlem, 1929. T. J. N O O R D R A V E N and C. A. G. van der BOOM: Het Beladen. Duwaer and van Ginkel's edition, Amsterdam, 1920'. W. SCHUT and J. D . JANSEN: "Researches on Ferrosilicon", in Receu.il des Travaux chimiques des Pays Bas. Société chimique néerlandaise, Dordrecht. U n i t e d S t a t e s of America H. F . M O O R E and J . B. KOMMERS: "An Investigation of the Fatigue of Metals". University of Illinois, Engineering Experiment Station, Bulletin No. 124, Urbana, 1921. Ethyl Gasoline Corporation: Regulations concerning the Handling of Ethyl Fluid Issued by the Medical Service. Aug. 1929. H. H . BERMAN a n d H. W. M C C R O N E : Applied Safety Engineering. McGrawHill Book Co. Inc., New York & London, 1943. BIBLIOGRAPHY 225 (5) ARTICLES IN PERIODICALS M . LECOMTE: " N o t e au sujet de l'échantillonage des mâts supportant des mâts de charge", in Bulletin technique du Bureau Veritas. Paris, J u n e 1926. L. DELADRIERË: "Les Cordages en Textile", in Protection — Sécurité — Hygiène, Bulletin Mensuel de l'Association des Industriels de France, Nov. 1932. Niels OLSEN: " T h e Strength of Wooden Derricks", in Schiffbau, 1906, No. 14, p. 588. "Safety in the Use of Chains", in Industrial Safety Survey, Vol. IV, No. 2. Regierungsrat BERTHAU: "Geprüfte Ketten", in Arbeitsschutz, 1934, No. 5. Dr. J . O L I E and Ir. G. COOL: "Touw en Normalisatie van ongeteerd manillatouwwerk", in Het Schip, 18 M a y 1934, Den Haag. C. MÖRZER BRUYNS: "Inspection of Stevedoring Operations", in Industrial Safety Survey, Vol. X I , No. 2. Dr. med. A. B R A N D T : "Die Milzbrandgefahr im Transportgewerbe", in Reichsarbeitsblatt, No. 11, 1932, Teil III, Arbeitsschutz, No. 4, 87. Dr. Aug. POBTTER, Leipzig: "Milzbrand-Erkrankungen in Leipzig während 50 Jahren", in Zentralblatt für Gewerbehygiene und Unfallverhütung, Heft 9-10, Sept.-Oct. 1933. Dr. C. H. van H E R W E R D E N : "De Phlegmoneuse vorm van Anthrax", in Nederlandsch Tijdschrift voor Geneeskunde, 1914. Oberregierungsrat STILLER: "Die Verwendung von Papierscäken, insbesondere zur Verpackung von Thomasmehl", in Arbeitsschutz, Heft 12, 1934. Dr. Ernst HOLSTEIN and Dipl. Ing. Otto M A U : "Erkrankungen durch Thomasschlackenmehl in Hafenbetrieben und die Massnahmen zu ihrer Verhütung", in Reichsarbeitsblatt, No. 11, 15 Apr. 1937. Oberingenieur Johann W I N T E R : "Giftige und gefährliche Gase an Bord von Schiffen", in Reichsarbeitsblatt, No. 11, 15 Apr. 1937. M. MATHAREL: "Une étude sur les briquettes de ferro-silicium et de manganosilicium", in La Navigation du Rhin, No. 3, Mar. 1937. "Ferrosilicium", Industrial Data Sheet D- Chem. 20, in National Safely News, Nov. 1936. Dr. Hans H. WEBER: "Ein neues Reagens zum Nachweis von Phospor- und Arsenwasserstoff in Luft", in Zentralblatt für Gewerbehygiene und Unfallverhütung, Jan.-Feb. 1934. C. H. van H E W E R D E N : "Koolzuur-vergiftiging in Silo's", in Het Reddingwesen, Tijdschrift van den Kon. Nat. Bond voor Reddingwezen, No. 242, Feb. 1932. Robert A. KEHOÉ, M . D . : "Problems in Handling Ethyl Fluid and Ethyl Gasoline", in National Safety News, Jan. 1934. "Hazards in Closed or Poorly Ventilated Spaces. Casualties aboard M. V. 'Empire State' ", in Monthly Bulletin, U. S. Department of Commerce, Bureau of Marine Inspection and Navigation, Vol. II, No. 7, J a n . 1938. The Safe Installation and Use of Abrasive Wheels Studies and Reports, Series F, Second Section (Safety), No. 9 This study directs attention to the dangers attending the greatly increased use of manufactured abrasive wheels and indicates the precautions which must be taken against accidents, and damage to health through inhalation of dust. The preliminary draft was made in 1932 by Mr. G. Stevenson Taylor, O.B.E., H.M. Deputy Chief Inspector of Factories, London, who also made a final revision after it had been considered and amended by the I.L.O. Correspondence Committee on Accident Prevention. Publication was delayed for financial reasons, and by the outbreak of war. This delay has however proved advantageous, since it has enabled Mr. Stevenson Taylor to revise the manuscript in the light of the experience of recent years and to bring the technical part up to date on several important points. CONTENTS PREFACE Part I. The Safe Installation and Use of Abrasive Wheels INTRODUCTION CHAPTER CHAPTER CHAPTER CHAPTER CHAPTER CHAPTER APPENDIX APPENDIX I.. The Composition and Manufacture of Abrasive Wheels II. Accidents and Injuries Caused by Abrasive Wheels HI. Safety Precautions against Accidents Caused by Bursting of Wheels IV. Precautions against Accidents other than those Caused by Bursting of Wheels V. Prevention of Dust Inhalation VI. Summary of Main Precautions Recommended I. Analytical and Experimental Study of the Conditions of Resistance of Abrasive Wheels, by Dr. Vitaliano Colombo II. The Stresses in Rotating Disks, by Thos. H. Frost, Cambridge, Mass., and K. F. Whitcomb, Worcester, Mass. Part II. Safety Regulations in Various Countries (Germany, Great Britain, and United States of America) August 1944. iv + 175 pp. Price: $1; 4s.