July 24, 1914 Supplement to THE COLLIERY GUARDIAN. xiii under the roof from which supports had been taken ; in several instances fatalities occurred through the worker failing to utilise proper safety appliances provided for his use. On the other hand, 79 fatalities occurred at the coal face, without blame being attachable either to workmen or officials, for the reason that the system of timbering laid down by the management was not violated. Little progress has been made towards the general use of bars in the stalls, for the reason that unless fatalities occur where the system of timbering is that of props* and lids alone, the management consider systematic barring unnecessary, and it is by no means the practice to use bars tp secure the roof in the stalls unless inherent difficulties due to prevalent physical conditions of the roof, such as slips and bumps, are known to exist, or where the roof cannot generally be kept up by the ordinary system of setting props. Had bars been systematically used, probably no less than 20 lives would have been saved at the coal face. As stated, 40 per cent, of the fatalities occurred in that part of the stall known as the “ gate-end.” As probably 98 per cent, of the coal got in the division is won by the longwall method, the area of roof and side at the gate-end is only about a tenth of the whole area of each stall; 40 per cent, is therefore an abnormal percentage under such conditions, and the adoption of systematic barring of all gates before ripping is done would prevent many accidents. Where the height of the roof is not sufficient to allow of timber bars, iron strips might be used to advantage. Of the remaining 60 per cent, of the falls at the face, the remedial measures in many cases would appear to be :— 1. Stricter supervision in working-places in order to check delay in setting up supports' to roof and sides. ') 2. A more liberal use of timber. 3. The straightening of the line of the coal face to avoid projections of coal bursting off suddenly. 4. The education of the worker to carry out systematically, thoroughly and promptly, the method of timbering best calculated to prevent falls, and not to take risks unnecessarily. The last-named measure could probably be helped on by supplying each deputy with a print on cloth showing the system of timbering to be observed in the working- places (both as regards roof and sides), with instructions to explain to his men what is really expected of them. It is true the maximum distances to be observed when setting supports underground is already posted up at the pit-head in accordance with the Act; still, among so many notices now required to be exhibited, the most important of all, so far as the working miner is con- cerned, is apt to escape the notice of the very persons whom it was intended to help. It remains to be recorded that 7,599,836 tons, or 10 per cent, of the output of coal, was produced by coal-cutting machines, and that only four lives were lost by falls of roof. This speaks well for the comparatively safe conditions pro- duced by systematic timbering, straight faces, and regular working of the coal face. During the year there were 13 separate fatal shaft accidents, by which 29 persons were killed, and 17 non- fatal accidents involving injury to 41 persons. The most serious accident of the year occurred on February 7 at Rufford sinkings, belonging to the Bolsover Colliery Company Limited, near Mansfield, Nottinghamshire, when 14 persons lost their lives and three others were injured by a water barrel, which after being overwound, subsequently fell back down the shaft, through the breakage of the clivvy or hook by which the barrel was attached to the winding rope. By the request of the Home Office technical points con- nected with the disaster were held over for the special Home Office enquiry, subsequently held by Mr. William Walker, one of H.M. divisional inspectors of mines, by whom a special report on the cause and circumstances of the disaster was subsequently made to the Secretary of State.* The next accident, most serious in its con- sequences, occurred at St. John’s Colliery, the property of Messrs. Locke and Co. (Newland) Limited, Norm an ton, Yorkshire, and by it four persons lost their lives and two other men were injured. The winding shaft is 470 yards deep, and when 10 men were being raised in the cage, at the end of their shift, one of the wooden receiving rods, 27 ft. long, 8 in. by 6 in., got loose and by falling vertically down the shaft pierced through both the roof and top deck floor of the ascending cage, killing four of the men. The rod was one of the two centre rods which steady the cages as they leave the top of the shaft guides. It was attached to baulks by two | in. bolts and an L piece of iron by screws to the floor of the top landing. The rod was plated with two straps of iron which did not Q meet round the point at the bottom. It would seem that in a previous wind the ascending cage caught the bottom of the receiving rod, bending up the strap slightly in the shape of a hook as shown at C on the sketch, and that when descending, the top ring of the cage caught this hook and pulled the rod off. After the disaster, the bolts by which the rod was secured to the baulks were found to be shorn in A. c two, and, though corroded, not badly so. The accident apparently was caused in one of two ways—either the wear and tear of the shaft guides near the top caused too much “ play ” or vibration in the cage itself as it entered the receiving rods, or the iron strap on the rod had, by constant usage, worked loose and formed a projection and got caught by the cage. After the accident a stronger receiving rod was installed, and at the inquest the jury recommended the opposite rod should be made as strong as the new one, and that bolts * Report dated July 26, 1913, by W. Walker, Esq., H.M. inspector of mines, on the causes and circumstances attending the accident which recurred February 7, 1913, at Ruff ord ^Colliery, N ottinghamshire. be renewed every 10 years. The owners agreed to carry out this recommendation. Two sinkers lost their lives by drowning—one at Ingleton Colliery, Yorkshire, the other at Welbeck sinkings in Nottinghamshire. In the former case a man accidentally slipped through the centre opening of a scaffold. At Welbeck Colliery the scaffold on which deceased was standing, along with 16 other men, was being raised by a steam winch in order to start a fresh length of brickwork. Owing to unequal capping of the two ropes on their respective drums, one side of the scaffold got about 2 ft. higher than the other. When attempting to remedy this, the engineman disengaged one of the drums, and the brake, through not acting properly, allowed the drum, carrying one of the ropes, to run, with the result that the scaffold tilted enor- mously, and one of the sinkers was thrown off the scaffold and killed by drowning. The brake was immediately afterwards examined by the enginewright of the colliery and found by him to be in order. He attributed the accident to the brake not being properly applied. When the company’s attention was subse- quently directed to the matter, they agreed—(1) to improve their winding apparatus by fixing a pawl on the spur wheels to prevent the drum from accidentally running back; (2) to reduce the number of men on the scaffold while it is being raised or lowered ; (3) to provide a ladder in the shaft bottom attached either to the shaft side or to the bricking scaffold. As Regulation 21 (a) requires the fence at the pit bottom to be closed wh.en the cage is absent, the type of gate best suited to act automatically has exercised the minds of mine managers since that regulation came into force in September last. It has been found that when the cage operates the fence, the latter, owing to the weight and speed of the cage, is soon damaged. To obviate this, the manager of Creswell Colliery, Notting- hamshire, has designed a gate to be opened automatically by the tub before entering the cage. The first gate installed is not an entire success, owing to the fairly high speed at which the gate opens, and another type, Empty-side Gates Fig. 13.—Automatic Gates in Use at (Creswell Colliery. 2 £ 2 shown herewith, has also been installed to overcome this objection. The levers are arranged to give a straight motion outwards to one half of the gate, while this is modified by the other half moving radially from a fixed point in the shaft. The movement is thus rendered slow enough to avoid shock, and a balance weight closes the gate. All loaded coal tubs are put into the cage on one side of the shaft. On the opposite side the tubs leaving the cage open the gate, which is then closed by spiral springs. When persons are entering or leaving the cage, the gate is easily operated by hand. The fatal accidents under the heading of “ Miscel- laneous Underground Accidents” numbered 60, involving the loss of 69 lives, as against 62 in the preceding year. Two deaths were from explosives, three from suffocation by natural gases, eight from an inrush of water; 44 from haulage, six from electricity, one by machinery, and five from sundry causes. On January 28 two men—James English, a certified deputy, and Alfred Sykes, a byeworkman—lost their lives in Lodge Mill Colliery, near Huddersfield, York- shire, through being overcome and poisoned by noxious gases in some old workings which had been gas-bound for a fortnight, and into which, contrary to the Coal Mines Act, they had gone to continue the recovery of some rails. In less than half an hour, the Altofts rescue party, wearing the Weg apparatus, recovered the three men—Sykes, English, and Schofield.* Sykes was dead *Mr. Lloyd contributed a paper living an account of the use of rescue apparatus at Lodge Mill Colliery to the Transactions, of the Institution of Mining Engineers, Volume xlvi., page 250. This paper also contains a most valuable note by Dr. Haldane, F.R.S., on the effects of gas poisoning experienced at Lodge Mill Colliery. and apparently had been so for some hours. In the case of the other two, artificial respiration was resorted to ; both were apparently on the high road to recovery and were removed to the surface on stretchers and thence to Huddersfield Infirmary. Schofield recovered, but the deputy, English, was unable to recover from the shock, and, it is said, succumbed through dilatation of the heart brought on by pleuritic adhesions. Had Return Wheel, I SOO yard* from shaft. Sykes A Schcflsld rTt/i i sb i’ ci-'t___________JS Ij L N»A J-j'i Nj4 [i i|r5,h Ending j Fig. 14.—Workings at Lodge Mill Colliery’ where Two Men were Suffocated on' January 28, 1913. ‘ efficient rescue apparatus, and men thoroughly trained to its use, been available at the colliery or in the neighbourhood, the lives of the other two men might have been ssved. Neither apparatus nor brigades were available nearer than Altofts, although it is only fair to state that the owner of the colliery was a member of the Owners’ Association, which, at the time of the accident, was building a rescue station at Wakefield within a radius of 10 miles of the colliery, in order to comply with the Rescue and Aid Order made by the Secretary of State. Another case of suffocation by noxious gases occurred at A Winning Colliery, Alfreton, belonging to Fig. 15.—Sketch Plan of Workings “A” Winning Colliery, Alfrton. sP Main\ Intake the Blackwell Colliery Company, on January 17, where the Low Main coal seam is worked on the longwall method, and naked lights are used at a depth of 236 yards. At 10 o’clock in the morning, a wooden cog at the corner of 81’s crossgate in the main intake, 1,100 yards from the pit bottom (see point A on sketch), was discovered on fire by a lad named Hall. He at once reported the matter to the deputy, Thomas Perkins, who, accompanied by another man, passed on into the workings and ran the 60 men employed there out by the return aircourse. Unfortunately two men had already started up 40’s crossgate 150 yards inbye of the fire and faced the smoke in the level. The first man, Wileman, more or less affected by fumes, got through but the other man, Henry Kerry, 53 years of age, failed, and Wileman in the excitement did not, it was said, tell anyone that Kerry, who was following, had been left behind. Through the cog collapsing a heavy fall of roof occurred, and not until the following day was Kerry’s body discovered at the point B. After travelling up 40’s gate Kerry passed through two doors, and was, apparently, quickly overcome by the fumes before he could get out and before he was missed. The system of cheeking the men at this colliery broke down in respect that the manager did not know that Kerry was missing until 6 p.m. on the day of the fire. The system consisted of having a number for each gate—each man putting his own check mark on a board before going in and rubbing it off on his way out. Generally, as the men travelled out together, the practice was for the stallman to rub all the marks off for his own bank, and in some way unexplained, on the day of the accident, the marks for Kerry’s stall were wiped off while Kerry was still in the workings The management being dissatisfied with the system, proceeded at once to amend it. Even had Kerry been missed and his whereabouts known, probably the fire helmets with 20 yards of piping which were available, would have been of no use, for the deceased was found 55 yds. inbye of the fire. The company were members of the Mansfield rescue station. Spontaneous combustion is unknown in this mine, and it was suggested that a box of matches, placed in the cog. had squeezed by pressure of the strata and became ignited. As the cog was two years old and settled, it seems more probable that a cigarette had been thrown