1054 THE COLLIERY GUARDIAN May 24, 1918. MINE LABOUR AND ACCIDENTS.* By H. M. Wilson. In connection with the inspection of mines for the fixing of merit premium rates for insurance under workmen’s compensation, it has been the practice of The Associated Companies to allow 60 per cent, of the credits for safeguarding of the physical hazards of the mine and 40 per cent, for the human element. By “human element” is meant that inherent tendency of the industrial worker to be careless, negligent or disobedient, in respect to his own safety, and after that also of his fellow workman. This is a tendency not only of the labourer or of the skilled miner, but of all human beings, working or travelling anywhere. This element of mine safety, sometimes called the moral hazard, has been admirably shown by statistics compiled from the records of the Department of Mines of the Union of South Africa to be due in about equal measure to the carelessness of the miner and to that of the operator. These statistics show that about one- half the fatalities in mines are due to the so-called hazard of the industry, or what is sometimes called the dangers inherent to work or misadventure. Of 2,497 fatalities investigated, including over 200,000 employees, for a period of over 2J years, it was found that 17'5 per cent, were due to faulty plant or material, fault of the foreman, or of the management —in short, were due to the operator; 17'1 per cent, to disobedience of orders, carelessness, or ignorance of injured persons; and 5’9 per cent, through fault of others, including fellow workmen. The fault of the operator is evidenced by failure to give proper warning, failure to inspect, failure to furnish proper equipment, and neglecting to comply with the recom- mendations of the inspector. That education and training of the mine operator as well as of the mine worker is essential to any material improvement in the safety of mining is beyond question, and the system of schedule-rating insurance premiums under workmen’s compensation which has been adopted by The Associated Companies takes cognisance of this to the fullest possible extent. While The Associated Companies has accepted 40 per cent, as a reasonable measure of the proportion of accidents due to the human element, a careful study of accident causes in the last two years for over 2,000 mines has convinced the author that the human element is responsible for a very much larger per- centage of accidents. J. S. Herbert, superintendent of the Safety Department of the Cambria Steel Com- pany, says that their statistics convince him that ninety-three per cent, of their accidents have no mechanical connection, and that seventy-three per cent, of their injuries are chargeable to the men themselves for one of several causes, usually careless- ness, indifference, or recklessness. In attempting to find a remedy for this condition, the question arises : is the class of labour employed responsible for this condition? The author does not believe that it is. The class of labour employed in mines is not materially inferior to that employed in steel mills and in other large industries where the same ratio of accidents from human and mechanical causes is found. Undoubtedly, one of the prime causes is industrial unrest, evidenced in the brief period during which any workman continues in the same employment or calling. In some European countries, and in some portions of the United States, where living and housing conditions, the character of the community, the treatment of the employees by their employer, and home and social conditions are satisfactory, men continue in their employment with one concern for many years. In consequence, they become acquainted with the hazards of their calling; they are better able to appreciate their relations to their fellow workers and their superiors. They come to have a better understanding of the causes of accidents and the means of avoiding them, and the accident rate is reduced accordingly. This brings us to the question of the relation of personnel work, in the broader sense, to accident prevention. The matter of safeguarding physical hazards, such as special methods of timbering, the furnishing of proper timbers for posting, use of mechanical post pullers, of permissible explosives, etc., are all admirable, but these methods and devices are all known, and can be applied by those who are willing to make their mines physically more safe in these respects. But the human element can only be improved by personnel work. Mere trite aphorisms, lists of “ Don’ts ” posted on the bulletin board, pictorial bulletins and safety meets have their value. They are useful in arousing an interest in the worker regarding the safety in his employment, and concern- ing some of the causes of accidents; but, like every- thing else in life, the lesson lasts but a day. It is soon forgotten, unless it is continually hammered home, and this hammering home process can only go so far. The mine management gets stale on the work, safety committees cease to be active; bulletin boards and safety meets cease to interest. The next, and third progressive step in accident prevention, and that to which the least attention has yet been given, because of its apparent cost, is welfare work, so-called. It is, in the author’s belief, the best investment that can be made, for those who want to reduce their costs in mining. Accidents are costly, sickness also is costly; lost time for any cause is costly. In addition to the admirable accident prevention work being done by the State mine inspectors, through the investigations of the Federal Bureau of Mines, and by mine safety and other safety organisations, and by the mine operators and mine officials, there remains as the final field to be cultivated the improve- ment of the living, housing, moral, and physical con- ditions of the employees. There is a close relation * Transactions of the American Institute of Mining Engineers. between contentment in employment and good health, on one hand, and accident prevention on the other. A contented mind gives the worker an opportunity to think about and to know his work. It is the distracted man, the so-called “ star gazer,” whose mind is elsewhere than on his work, who is the most unsafe worker. Next to him is the man in bad physical condition. The ill man does not stand firmly on his feet, and is likely to stumble. He wields the pick with less vigour and precision than the well man. A strojig physical body and an alert, healthy mind, are among the best safeguards against accidents. COMPRESSED AIR FOR CLEANING MOTORS. By D. R. Shearer. In a great many manufacturing plants, especially those working in wood or a similar material, the driving motors have a tendency to become clogged with dust in a short time. Such accumulation of dust is a fire hazard, particularly if the motors are overloaded and liable to have coils burn out; and if a motor is not overloaded, it may heat if the air ducts are filled with dust. Moreover, the motor is not able to carry the peaks when called upon, for the reason that the additional heat cannot be dissi- pated. Motors should be cleaned frequently, but such cleaning with the means ordinarily at hand is a rather difficult procedure since the air ducts are usually small and difficult to clear with a brush. The windows may be brushed off externally, but such cleaning does not reach the real seat of the trouble. One of the best methods is compressed air under considerable pressure. If the air is not available from some source already in use, it is advantageous to use a small motor-driven compressor and a storage tank. The compressor should have a capacity of from 4 to 10 cu. ft. of air per minute at a pressure of 100 lb. per sq. in., and the tank should hold from 40 to 100 cu. ft. This size will take care of the average plant. In piping a factory the air line can be in lin., | in. and | in. pipe. Since the amount of air used in cleaning any one motor is small, a large pipe is not necessary. An outlet with a valve should be placed near each motor, or if they are grouped, several motors can be reached from one outlet with J in. or fin. hose; the smaller size is more easily handled. The nozzles can be made up of brass rod of suitable sizes and shapes, which, however, must have very small openings, as a large nozzle opening would con- sume too much air. Probably the most useful sizes would be tV in- an<^ A in., and these three nozzles will meet most conditions. Sometimes it becomes desirable to clean surfaces with air; for instance, the walls or ceilings of the buildings. This may be done with a tool made from f in. or f in. pipe in which there are a number of holes, as shown, to form a “ brush ” of escaping air. For ordinary purposes holes of about in. to -J* in. can be used. These small nozzles do not clog readily if all the scale and dirt is blown out of the piping. As an investment such a cleaning system will be found to pay for itself in the reduction of motor troubles and the decrease in fire hazard.—Power. MINING INDUSTRY AND MILITARY SERVICE. When Swansea Tribunal had an application for exemp- tion of a coal retailer, Class A, 41 years of age, it was contended on his behalf that he was in a certified occupation, but the National Service representative argued that the man was not required in the occupation. Members of the tribunal raised the point as to the combination of businesses, action being taken by the Retail Coal Dealers’ Association, as in other parts of the country, but for the applicant it was averred that the local dealers had more work now than they could do. Three months’ exemption was allowed, and the tribunal clerk will com- municate with the Retailers’ Association as to the prac- ticability of an arrangement. The executive committee of the Northumberland Miners’ Association has had under consideration represen- tations from Dudley Branch as to older men having to do putting work, owing to so many young men being taken for the Army, and has decided to seek an interview with the coalowners with a view to a better arrangement regard- ing payment for such work than at present obtains. A West Cornforth miner, named Thos. Joyce, 23, was drawn in the ballot to join the Army, but was granted exemption by the Sedgefield Tribunal on domestic grounds, it appearing that his father had been unable to work for nine years, and that Joyce supported his father, mother and five children under 12 years old. Mr. Jos. Foster, miners’ secretary, and a member of the tribunal, informed his colleagues at a recent meeting that Joyce had been called up and that the military authorities had insisted upon his surrendering himself. The result was that he was now in the infirmary, and that it was very probable that his parents’ application for relief would be before the Guardians that week-end. Such conduct was causing unrest and dissatisfaction amongst the miners, and it would be impossible for trade union officials and men holding public offices to carry on if it were allowed. Major Grubb, National Service representative, pointed out that the case had been heard in error by the tribunal, as, according to the Proclamation, decertificated miners, 18 to 23, and holders of M.A.R.O. certificates which were withdrawn, could not now be heard by tribunals, except in the cases of widows’ sons. Mr. J. M. Crawford, manager of the Dean and Chapter Colliery, said they had been told that the Army only wanted Grade 1 miners. That was the Prime Minister’s own statement to the Miners’ Federation. Ultimately, the tribunal agreed to hear the cases on the list for that day, but to meet no more until Joyce was released to civil life. Chester-le-Street Rural Tribunal has decided to suspend operations until definite instructions as to its competency to deal with the cases of young miners have been received. Meanwhile, all such cases have been referred to the County Appeal Tribunal, which is likely to be “ snowed under ” by the thousands of such cases in the county, unless local tribunals are authorised to deal with them. THE COAL AND IRON TRADES. Thursday, May 23. Scotland. Western District. COAL. Conditions in the Scotch coal trade show little change. Outputs are somewhat restricted, and consumers find diffi- culty in securing full deliveries. The demands, too, which usually taper off at this season of the year, show no falling away, and the present supply of labour is unequal to the varied requirements. In the west of Scotland industrial and household calls are insistent, while shipping facil ties have undergone an improvement within the past few weeks which is rather beyond the capacity of the collieries at present. The shipments for the week amounted to 115,092 tons, against 114,432 tons in the preceding week, and 92,741 tons in the same week last year. Prices f.o.b. Glasgow. Current ! L’st week’s Last year’s prices. i prices. i prices. Steam coal 27/6 i 27/6 ; 18/ -23/ Ell 26/6-28/ : 26/6-28/ I 18 6-21/ Splint 28/ -30/ : 28/ —30/ 1 18' -26/ Treble nuts 23/ 23/ i 23/6 Double do ! 22/ ; 22/ ; 22/ Single do ! 21/ 21/ ! 20/ IRON. Practically the entire energies in the various depart- ments of the Scotch iron trade are devoted to war require- ments, to the exclusion of all other interests. The call for pig iron is incessant. Apart from the predominant demand for haematite, ordinary brands are brisk, though scarce in supply. Exports are cut down to the lowest possible limit. Values are unchanged and approximate figures are as follow: — Monkland and Carnbroe f.a.s. at Glasgow, Nos. 1, 140s., Nos. 3, 135s.; Govan, No. 1, 135s., No. 3,130s.; Clyde, Summerlee, Calder and Langloan, Nos. 1, 150s., Nos. 3, 145s.; Glengarnock at Ardrossan, No. 1, 140s., No. 3, 135s.; Eglinton at Ardrossan or Troon and Dal- mellington at Ayr, Nos. 1, 145s., Nos. 3, 135s.; Shotts at Leith, No. 1, 150s., No. 3, 145s. p r ton. In the malleable iron trade the mills are busy with national work. The steel departments, particularly, are faced with large demands principally for light sectional material and small rounds. Very little is being done meantime in the rolling of shell- discard steel. Black sheet makers have difficulty in keeping things up-to-date. Galvanis- d material is still practically a Government luxury. Makers of cast-iron pipes are doing a comparatively big business in the smaller sizes. Tube makers, too, have a fair number of orders on hand. Scotland. Eastern District. COAL. Collieries in the Lothian district are finding it impossible to meet all demands. Admiralty requirements are heavy and local consumers are taking fair quantities. Shipments auiounted to 19,358 tons, against 16,241 in the preceding week, and 19,990 tons in the same week last year. Prices f.o.b Leith. J Current : L’st week’s Last year’s i prices. prices. prices Best screened steam coal... 26/6 26/6 20/6 Secondary qualities 25/6 25/6 18/ 20/- Treble nuts 23/ 23/ 22/ Double do • 22/ 22/ 20/ Single do 21/ 21/ 19/ -19/6 Similar conditions characterise business in Fifeshire, where shipping enquiries have improved. The collieries, however, are not all in a position to take advantage of this extra turnover. Clearances were 54,562 tons against 37,351 in the preceding week and 19,653 tons in the same week last year. Prices f.o.b. Methil or Burntisland. Best screened navigation coal Current |L’st week’s Last year’s prices. 30/ prices. 29/ -31/ prices. 29/ -31/ Unscreened do 24/ -25/ 24/ -25/ 24/ First-class steam coal...... 28/ 28/ 25/ Third-class do 24/ 24/ 20/ Treble nuts 23/ 23/ 24/ Double do . 22/ 22 / 22/ Single do 21/ 21/ 19/ All prices quoted only apply to French and Italian orders ; for all other business, 2s. 6d. or more per ton must be added for all large and small coal with the exception of second quality large Lothian coal. The aggregate shipments for the past week amounted to 189,012 tons compared with 168,024 in the preceding week, and 132,384 tons in the corresponding week of last year. Northumberland, Durham and Cleveland. N ewcastle-on-Ty ne. COAL. The local coal market has gone on from strength to greater strength in the course of the week, and is in an exceedingly firm and healthy position. During the week Tyne best steams have advanced until they are practically on a parity with Bly ths, being now quoted, as far as neutral business is concerned, at the full 50s., whilst steam seconds have leaped up to 45s. Gas coals and smithies are strongly maintained at their recent top quotations. Bunkers are decidedly firmer, owing tc> great scarcity, and are now worth up to 37s. 6d. All other descriptions of fuel are steady at the full figures of last week. At the advanced rates now quoted not a great deal of actual business is being done, inasmuch as the collieries have their work set to deal with the orders on Government, Allied and home accounts without troubling to any extent with the business on offer from neutrals. Indeed, the latter are at present mainly depen- dent on such casual cargoes as are thrown on the market by reason of the non-arrival to time of expected tonnage, and these cargoes are few in number. All the pits have been working at their fullest capacity of output during the week, save, of course, at the week-end and on Monday, which latter day was taken as the Whitsuntide holiday. In