Horse Powered Whim
A horse-powered winding "whim". A whim, also called a whim gin or a horse capstan, is a device similar to a windlass used in mining for hauling materials to the surface. It comprises a capstan or a wide drum with a vertical axle. A rope is wound around the drum, with both ends traversing several pulleys and hanging down the mine shaft. As the drum is turned around, one end of the rope is lowered, carrying an empty bucket, while the other one is raised, carrying a full load.