| 单词 | monkey-hammer |
| 释义 | > as lemmasmonkey-hammer monkey-hammer n. a drop-press in which the hammer is a falling weight; a piledriver; cf. sense 14a. ΚΠ 1869 Young Gentleman's Mag. May 308 An instrument something like what in engineering is called a monkey-hammer, but is known in the goldsmith's trade as a ‘drop-down’ or monkey-press. 1875 E. H. Knight Amer. Mech. Dict. II. 1478/2 Monkey-hammer, a drop-press in which the hammer is a falling weight... In it various articles of jewelry, etc., are stamped out. 1941 Illustr. London News 198 223 (caption) For rapid road cratering the surface is first broken through and a 2 inch steel tube with detachable point inserted which is driven down to a depth of nearly seven feet by means of a monkey hammer. < as lemmas |
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