单词 | throw-crank |
释义 | > as lemmasthrow-crank throw-crank n. now rare a crank which converts rotary (circular) into reciprocating (back and forth) motion. ΘΚΠ society > occupation and work > equipment > machine > parts of machines > other parts > [noun] > converters > cranks winch1660 wince1688 crank1728 swingle1787 throw-crank1858 1858 J. Slight & R. S. Burn Bk. Farm Implements 381 In fig. 476, b b is the throw-crank. 1867 R. Hunt Ure's Dict. Arts (ed. 6) II. 783 A carrier, which is made to advance and recede alternately by means of a throw-crank. 1950 Amer. Jrnl. Psychol. 63 390 There the shaft was driven through a throw-crank motion by an 18-r.p.m., ¼-h.p. gear-motor. < as lemmas |
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