the wheel that turns the axle of a windlass at a well.

A solid wheel or barrel; spec. a pulley. Obsolete.

A wheel in the gearing of a mill, connected to the sail mechanism and driving the upper millstone. Cf. wallower, n. 2.

A large vertical wheel which is turned by people or animals walking on the inner or outer rim, used as a source of mechanical power; a…

A wheel on the side of something (in various contexts).

A revolving piece of mechanism like a turnstile; a wheel of some kind. dialect.

Mechanics. A wheel or roller around which a belt revolves; a band-wheel. Now historical.

Of machinery. to run idle, to run loose, without doing work or transmitting power.

A revolving fan or wheel.

Chiefly Nautical. Originally: †a wheel having several pairs of projections or depressions adapted to engage the links of a chain, used with a…

A wheel designed to be turned by the impact of air. Obsolete.

a wheel turned by the wind to drive some mechanism, as in a windmill or wind-pump.

A wheel equipped with projections along its rim that are used to engage with the links of a chain, the perforations along the edge of a strip of…

(a) see friction-roller n.; (b) see quot. 1888.

Mechanics. Also with lower-case initial. a radially slotted wheel or disc; (also) a Geneva mechanism or movement.

A wheel or roller that when in contact with a moving belt, tape, or the like transmits no power but serves to support it, guide it, or make it taut…