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单词 catch motion
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catch motion
catch motion n. Obsolete a type of simple gear.
ΚΠ
1835 Mechanics' Mag. 21 Nov. 130/1 IL are catch, screw, or common toothed wheels, so as to be worked by a catch-motion, a screw, or common wheel-work.
1874 E. H. Knight Amer. Mech. Dict. I. 503/1 Catch-motion (Machinery), a motion in a lathe by which speed is changed.
1887 Eng. Mechanic & World of Sci. 23 Dec. 391/3 The only difference we make in it is the addition of the improved stop motion..which entirely does away with the necessity of pushing away the catch motion.
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