| 单词 | pinwheel escapement |
| 释义 | > as lemmaspinwheel escapement pinwheel escapement n. Clockmaking an escapement in which semicircular pins set on the escape wheel at right angles to its plane of rotation give impulse to the pallets. ΚΠ 1873 Chambers's Encycl. V. 422/2 Other inventions, as the detached escapement, the pin-wheel escapement in various forms, and the gravity escapement..have not come into general use. 1962 E. Bruton Dict. Clocks & Watches 196 Woodpecker escapement, form of pin wheel escapement in some early nineteenth century Austrian clocks. 1980 Washington Post (Nexis) 2 Nov. k1 Galileo invented a pinwheel escapement, and worked on a pendulum clock but died before perfecting it. < as lemmas |
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