| 单词 |
contrate |
| 释义 |
contrate, a.|ˈkɒntreɪt|
[f. L. type *contrāt-us, f. contrā against, opposite: cf. med.L. contrāta = It., Sp. contrada, F. contrée lit. ‘region lying opposite’, country.]
†1. ? Opposed, contrary, adverse. Obs.
c1450Henryson Mor. Fab. 41 Of ciuill Law volumes full many they reuolue..Contrate, Prostrat arguments they resolue.
2. contrate wheel: a wheel having teeth set at right angles to its plane; in watch-making, the wheel of this kind which works in the pinion of the balance or crown-wheel of a vertical watch. Also contrate teeth, contrate pinion.
1696Derham Artif. Clockm. 5 The Contrate-Wheel is that Wheel in Pocket-Watches which is next to the Crown-Wheel whose Teeth and Hoop lye contrary to those of other Wheels. 1773T. Hatton Clock & Watch-work 13 After the manner of contrate-wheel teeth. 1795Herschel in Phil. Trans. LXXXV. 392 These wheels carry contrate teeth on the inside, and a small dial-plate on the back. 1838Penny Cycl. XII. 302/2 Vertical Watch—The centre-wheel gives motion to the third wheel pinion, to which is attached the third wheel, acting upon the contrate-wheel pinion, on which is placed the contrate-wheel, acting in the pinion of the balance-wheel, which is also called the scape-wheel. |
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