Tools – Wrench – screwdriver – or driver therefor – Rigid jaws
Patent
1977-11-30
1979-07-24
Spruill, Robert Louis
Tools
Wrench, screwdriver, or driver therefor
Rigid jaws
81125, 85 32R, 85 45, B25B 1306, F16B 2300
Patent
active
041618963
ABSTRACT:
A theft prevention assembly for use with car wheels and the like includes a threaded sleeve adapted to be threaded onto a wheel mounting stud in place of the usual lug nut, the sleeve having an enlarged head portion at its outer end which is loosely encircled by a ring. The ring and enlarged head portion having opposed surfaces preventing the ring from moving outwardly of the head portion. A special wrenching tool has clamping members between which the ring and outer end of the sleeve may be clamped to produce sufficient frictional force to cause the assembly to rotate as a unit when the wrench is turned.
REFERENCES:
patent: 1868009 (1932-07-01), Gelinski
patent: 1958981 (1934-05-01), Wilczek
patent: 1992474 (1935-02-01), Currier
patent: 2371121 (1945-03-01), Basquin
patent: 2756791 (1956-07-01), Ferrara
patent: 3351111 (1967-11-01), Biddle
patent: 4018111 (1977-04-01), Goldhaber
Monarch Machine Company, Inc.
Smith James G.
Spruill Robert Louis
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