> as lemmas
swing-jack
swing-jack n.
Brit. 
/ˈswɪŋdʒak/
, /ˈswɪŋdʒak/U.S. /ˈswɪŋˌdʒæk/
(Jack n.2 11), see quot. 1875./ˈswɪŋˌdʒæk/ΘΠ
society > occupation and work > equipment > lifting or hoisting equipment > [noun] > jacks
screw1404
scalet1640
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jackscrew?1735
crick1775
fence-jack1874
swing-jack1875
wagon-jack1875
windlass-jack1875
truck-jack1877
setter1895
1875 E. H. Knight Pract. Dict. Mech. Swing-jack, a jack for replacing cars on the track; the bottom of the standard is a cylindrical segment, and has a toe working in a slot in the base of the jack. A pair are used, and the car being lifted while the standards are vertical, the latter are canted to or swung over, bringing the wheels of the car in line with the rails.
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