Tools – Wrench – screwdriver – or driver therefor – Rigid jaws
Patent
1976-01-08
1978-04-18
Jones, Jr., James L.
Tools
Wrench, screwdriver, or driver therefor
Rigid jaws
81 71, B25B 1348
Patent
active
040844544
ABSTRACT:
This invention relates to a new tool for loosening screw parts or like devices which are frozen in screw threaded connection in a metal work part, for example. The new tool includes hollow, cup-shaped socket including a thick solid upper end head portion and an integral hollow skirt portion for fitting over an exposed head of a frozen screw device, a short axial extent of the exposed head of the device being interlocked with the skirt when an inner rim portion on the skirt is in locked engagement with the work-part. A box-end wrench is provided having a non-circular opening in one end which fits over a complementary non-circular opening on the outer surface of the socket tool at a point intermediate the solid portion of the head and the rim, to extend radially from the head, so that an operator by applying tool-turning force to the handle of the wrench, in unscrewing direction, while repeatedly tapping the solid head portion with a hammer, may loosen the frozen screw device from the work-piece without damage to the screw connection, which would otherwise terminate the useful life of the work-piece and the device frozen thereto.
REFERENCES:
patent: 1533784 (1925-04-01), Bellows
patent: 1567877 (1925-12-01), Tuttle
patent: 1689585 (1928-10-01), Haschart
patent: 1778576 (1930-10-01), Walker
patent: 2621688 (1952-12-01), Wales
patent: 2643566 (1953-06-01), Dos Santos et al.
patent: 3289503 (1966-12-01), Klatt, Jr.
patent: 3875829 (1975-04-01), Evans et al.
Jones Jr. James L.
Polygon, Inc.
Smith James G.
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