During the eighteenth century, gins with
two, four and even eight horses were used to transport men and coal. A
rope wound round a horizontal drum passes over a pulley wheel and down
the shaft. Attached to the drum is a horizontal wooden bar, a horse
is harnessed to this and is then made to walk round in a circle. As it
does so, the rope with a basket attached is first lowered into the shaft
to be filled and then raised to the surface.
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