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rack-bar
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rack-bar
ˈrack-bar 1. Mech. [f. rack n.2 6.] A bar fitted with a rack or racks.a 1824 A. Scott in Trans. Highl. Soc. (1824) VI. 31 The teeth of these two spur-wheels are to work..into the teeth of the rack-bars. 1879 Cassell's Techn. Educ. IV. 395/1 A strong semicircle of cast iron, with which the telescope ...
Oxford English Dictionary
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ratch
▪ I. ratch, n.1 Mech. (rætʃ) Also 7 Sc. ratsche, 8 roch, 8–9 rash. [Var. of ratchet; the precise history of the form is not clear. Cf. G. ratsche, rätsche; also ratschborer ratchet-drill, ratschscheibe ratchet-wheel.] † 1. Sc. = firelock 1. Obs. rare.1620 D. Wedderburn Compl. Buik (S.H.S.) 73, I hav...
Oxford English Dictionary
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rack
▪ I. rack, n.1 (ræk) Forms: 4 rac, 4–5 rakke, 4–6 rak, (5 rake), 6–7 racke, 5– rack. [Chiefly a northern word, and perh. of Scandinavian origin; cf. Norw. and Sw. dial. rak (Sw. vrak, Da. vrag) wreck, wreckage, refuse, rubbish, etc., f. reka to drive, reke. The only form recorded in ON. is rek wreck...
Oxford English Dictionary
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