单词 | screw dog |
释义 | > as lemmasscrew dog screw dog n. a clamp adjustable by a screw; chiefly in plural. ΘΚΠ society > occupation and work > equipment > clutching or gripping equipment > [noun] > clamp > vice > types of wresting-vice1609 hand vice1611 bench screw1678 bench vice1688 screw dog1855 pin vice1868 taper-vice1877 staple-vice1881 vice grip1915 1855 Sci. Amer. 18 Aug. 386/2 Sawing Lumber... I claim the pointed screw dogs..operating in the manner substantially as set forth. 1914 Machinery May 808/2 How could the screw dogs be tightened unless a special wrench were provided? 2014 Politics & Govt. Week 7 Aug. Screw dogs have to be held in an outboard position by friction or mechanical means or the lens can not swing clear. < as lemmas |
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