| 单词 | handscrew |
| 释义 | > as lemmashandscrew handscrew n. a device (as a jack or clamp) operated by turning a screw or wheel by hand. ΘΚΠ society > occupation and work > equipment > lifting or hoisting equipment > [noun] > others polancre1356 spindle1398 wrest1584 handscrew?1660 sea-crab1689 lewis1743 crab1753 wheel and axle (also axis)1773 tippler1831 fall1834 outrigger hoist1835 lewisson1842 power hoist1869 tipper1870 lifting screw1885 powerlifter1909 bucket chain1911 bracket-crab- ?1660 Indenture between Kings Majesty & Master-gunner (single sheet) Cases of Wood for Cartridges for..Hand-screws. 1688 R. Holme Acad. Armory (1905) iii. xviii. 139/2 A Hand screw, or screw engine: or Ghynne or Wynch. 1765 T. H. Croker et al. Compl. Dict. Arts & Sci. II Hand-Screw, an instrument more usually called a jack. 1850 J. Greenwood Sailor's Sea-bk. 123 Hand-screws or jacks. This engine is used to cant beams or other weighty timbers: it consists of a box of elm containing cogged iron wheels of increasing powers. 1914 A. A. Dowd Machining Tapered & Spherical Surfaces (‘Machinery’ Ref. Bk. No. 121) i. 6 A two-jawed chuck..[is] screwed to the spindle of a small hand screw machine. 2002 Amer. Woodworker June 65 Use a handscrew or an adjustable wrench to twist the stretcher into position, if needed. < as lemmas |
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