单词 | rubbish pulley |
释义 | > as lemmasrubbish pulley rubbish pulley n. Mechanics (now rare) a single pulley or block (block n. 2a) with a hook by which it can be suspended, e.g. from the jib of a crane; = gin block n. at gin n.1 Compounds 2, whip n. 15a. ΚΠ 1863 Illustr. Hand-bk. & Price Current Machinery & Iron Work (Appleby Bros.) 38 Rubbish wheels, Whip Gins, or Monkey Wheels, with Frames and Hooks complete. 1904 P. N. Hasluck Builders' Hoisting Machinery i. 12 The simplest element in lifting tackle is the common gin-block, rubbish pulley, or monkey wheel. < as lemmas |
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