| 单词 | parallel vice |
| 释义 | > as lemmasparallel vice parallel vice n. a vice in which a bar on one jaw moves in a socket on the other so that the faces of the jaws are always parallel, as opposed to one in which one jaw is pivoted so as to move in an arc towards the other. ΚΠ 1848 Sci. Amer. 13 May 268/2 (heading) Stiven's parallel vice... The main advantage of this Vice consists in the parallel movement of the sliding jaw, without the work being marked. 1879 Manufacturer & Builder 11 54/1 Nowadays no good workman will have anything to do with such a vise, but wants a parallel vise, made in such a way that the jaw is not hinged, but remains parallel with itself while moving. 1914 Proc. Royal Soc. A. 90 367 The arrangement..consists simply of a stopped brass tube..with a brass plunger..fitting into it. It is placed endwise in a large parallel vice, which serves to force in the plunger. < as lemmas |
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