| 单词 | jack-pulley |
| 释义 | > as lemmasjack-pulley jack-pulley n. (a) the pulley of a roasting-jack; cf. sense 5 (now historical) (b) any of various pulleys in a belt driven system; esp. that driven by the belt and used to transmit motion and power to one or more components of a machine (rare). ΘΚΠ the world > food and drink > food > food manufacture and preparation > equipment for food preparation > cooking vessel or pot > [noun] > roasting-jack > parts of dog-wheel1592 jack weight1642 flyer1674 jack-pulley1675 spit-wheel1678 tumbler1678 spit-rack1693 jack flyer1731 1675 J. Smith Christian Relig. Appeal ii. 13 Such Jack-pullies, and Weights..Atoms, which our modern Wits have fancied for the Springs of his Motion. 1764 in D. Yaxley Researcher's Gloss. Hist. Documents E. Anglia (2003) 111 Jack pulleys & weights. 1891 Power-steam Dec. 3/1 The piece that wrecked the north jack pulley weighed some 500 pounds. 1951 U.S. Patent 2,562,818 5 The lower end of the shaft..has rotatably mounted thereon a three-groove jack pulley. 1996 P. Brears in P. A. Sambrook & P. Brears Country House Kitchen 1650–1900 iv. 97 The weight of the spit was taken by the rope or chain from the jack pulley above. < as lemmas |
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