| 单词 | quarter snail |
| 释义 | > as lemmasquarter snail quarter snail n. a snail (snail n.1 5a) which forms part of the quarter hour striking mechanism on a clock or watch. ΚΠ 1764 Dublin Mag. June 385/2 The particulars of this curious watch are as follows, viz... The quarter and half quarter snail and canon pinion, [etc.]. 1816 J. Smith Mechanic 405 R is the quarter locking lever, S the end which falls upon the quarter-snail. 1881 F. J. Britten Watch & Clockmakers' Handbk. (ed. 4) 80 The quarter snail attached to the canon pinion is doubled. 1958 Chambers's Techn. Dict. (ed. 3) 693 Quarter snail (Horol.). The snail in a chiming clock or repeater-watch which controls the number of teeth picked up on the quarter rack. 1999 Catal. Summer in www.antique-watch.com (2007) (O.E.D. Archive) The pierced gilt hour wheel and polished steel quarter snail [are] visible through the centre of the blue steel plate. < as lemmas |
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