单词 | chase-mortice |
释义 | > as lemmaschase-mortice chase-mortice n. (from 4) ‘a long mortise cut lengthwise in one of a pair of parallel timbers, for the insertion of one end of a transverse timber by making the latter revolve round a centre at the other end, which is fixed in the other parallel timber’ (Gwilt). ΚΠ 1823 P. Nicholson New Pract. Builder 119 These long mortises are called pulley-mortises, or chase-mortises. 1833 J. Holland Treat. Manuf. Metal II. 251 On the top of these crank shafts are moving crank heads, with a chase mortice in each. < as lemmas |
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