"Upcast" Quotes from Famous Books
... was worked by a single shaft divided by a strong wooden partition into two, one of these known as the downcast shaft, that is, the shaft through which the air descends into the mine, the other the upcast, through which the current, having made its way through all the windings and turnings of the roadways below, again ascends to the surface. This system of working by a single shaft, however, is very dangerous, as, in the event ... — Facing Death - The Hero of the Vaughan Pit. A Tale of the Coal Mines • G. A. Henty |