crown-wheel
1Crown wheel — Crown Crown (kroun), n. [OE. corone, coroun, crune, croun, OF. corone, corune, F. couronne, fr. L. corona crown, wreath; akin to Gr. korw nh anything curved, crown; cf. also L. curvus curved, E. curve, curb, Gael. cruinn round, W. crwn. Cf.… …
2Crown wheel — (hw?l ). [Named from its resemblance to a crown.] (Mach.) A wheel with cogs or teeth set at right angles to its plane; called also a {contrate wheel} or {face wheel}. [1913 Webster] …
3crown-wheel — crownˈ wheel noun (horology) A wheel with teeth set at right angles to its plane • • • Main Entry: ↑crown …
4crown wheel — or crown gear n. a gearwheel with teeth set in the rim perpendicularly to its plane …
5crown wheel — noun : a crown gear of light construction: as a. : the crown shaped horizontal escape wheel of a verge escapement timepiece b. : a contrate wheel in the winding mechanism of a watch that drives the ratchet wheel and is itself driven by the… …
6crown wheel and pinion — A pair of gears in the final drive of a vehicle, always found in the back axle of a rear wheel drive layout where the pinion is on the end of the propeller shaft driving the crown wheel mounted on the differential at right angles to it, and also… …
7crown wheel — Horol. 1. a wheel next to the winding knob, having two sets of teeth, one at right angles to its plane. 2. any of various wheels having the form of a hoop or short cylinder with a serrated edge, as the escape wheel in a verge escapement. [1640… …
8crown wheel — noun In watchmaking, an object of circular shape with contrate teeth, which meshes with the winding pinion and with the ratchet wheel on the barrel arbor used to wind up the watch, respectively, to set the time …
9crown wheel — noun a gearwheel or cogwheel with teeth that project from the face of the wheel at right angles, used especially in the gears of motor vehicles …
10crown-wheel — n. Contrate wheel …
