1887•Proceedings of the Royal Society of LondonRequires access

I. A coal-dust explosion

William Galloway

Abstract

Abstract The Silkstone pits of Altoft’s Colliery, near Normanton, in Yorkshire, in which the explosion took place, are 420 yards deep. Both shafts are round, the down-cast being 12 feet and the up-cast 10 feet in diameter. The thickness of the working, including a bed of soft shale below the seam, used as a holing, is 4 feet 6 inches. The system of working is longwall. The number of men and boys employed.underground in the day shift was about 350. The colliery is now twenty-one years old.

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Key concepts: Coal mining, Mining engineering, Coal, Oil shale, Geology, Yard, Engineering, Waste management