Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 303
1187. FUSEE CHAIN AND SPRINGDRUM, used in watch and clock move-ments. This device compensates forthe variation in the force of the spring. 292 HOROLOGICAL. … 1188. CHRONOMETER ESCAPEMENT.— P, the impulse pallet on the arbor disc of thebalance wheel; V, a release tooth on the arborwhich strikes the end of the stop lever and releasesthe escapement at the moment that the toothA falls in mesh with the pallet P. At the returnoscillation of the balance wheel…
Mechanical movements
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