Windlass. A common mechanical power, by which weights are raised, and water generally drawn out of a well. As power is as velocity, and as the hand at the winch makes a larger circle than the cylinder round which the rope coils, so the power is proportionally increased. Thus, if the hand performs a circle of six feet, while the cylinder performs but one foot, so the power of the hand, friction excepted, is increased six times.

Windlass 119