Support systems / Haulage
The tubs of coal, filled at the coal face, were trammed by hand to the stall gates, from which points they were hauled by children and ponies to the main roadway. This usually consisted of some system of steel-wire rope haulage, which in the early days was driven by steam boilers and haulage engine. Eventually compressed-air, electrically operated rope-haulage gears and conveyors replaced ponies for underground haulage.
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