| 单词 | barrel arbor |
| 释义 | > as lemmasbarrel arbor barrel arbor n. Watchmaking and Clockmaking the central axis of the barrel, around which the mainspring is coiled; cf. sense 5b. ΚΠ 1773 T. Hatton Introd. Clock & Watch Work i. 164 Upon one end of the barrel arbor must be fixed a wheel of the same size and number of teeth of one fixed on the axes..as the spring by its force will go round the axes in the time proposed. 1850 E. B. Denison Rudimentary Treat. Clock & Watch Making i. lxxxi. 110 The great wheel of a weight-clock rides on the barrel arbor. 1884 F. J. Britten Watch & Clockmakers' Handbk. (new ed.) 158 By the act of winding a watch or clock with a going barrel the barrel arbor is turned round and round till nearly the whole of the spring is drawn away from the rim of the box and coiled round the arbor. 1972 H. C. Kelly Clock Repairing as Hobby x. 107 Give the barrel arbor on the opposite end a sharp tap on some hard surface... The mainspring need not be removed except in the case of breakage. 2005 Business Times (Singapore) (Nexis) 28 Oct. The ratchet wheel turns the barrel arbor, which creates a tightening tension in the spring. < as lemmas |
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