Tools – Wrench – screwdriver – or driver therefor – Sliding jaw – cam-closing
Patent
1987-07-02
1989-12-05
Meislin, D. S.
Tools
Wrench, screwdriver, or driver therefor
Sliding jaw, cam-closing
81165, 81129, 81157, B25B 1318
Patent
active
048844802
ABSTRACT:
An adjustable socket provides continuous sizing from a minimum opening to a maximum opening to accommodate differently sized nut structures. The socket includes a socket body having a head portion and a pair of longitudinal wing portions separated by a channel region defined by a slideway region and a keyway region. A pair of jaw members are provided, each having a slide element received in the keyway region for transverse reciprocal movement and a jaw element projecting longitudinally of its slide element and received in the slideway region. When mounted, the jaw elements have facing interior work faces and oppositely facing, exterior cam surfaces. The wing portions are externally threaded and threadably receive a collar. Biasing springs apply restorative force tending to separate the jaw elements to open the region between the work faces. The collar bears against the cam surfaces and acts in constraining opposition to the biasing springs whereby constrained selective adjustment of the opening for the nut structure is obtained. The slide elements are otherwise freely slideable transversely in the keyway reigon, but they include interlock structure to prevent longitudinal movement in the socket body. An indexed area may cooperate with the collar to indicate the nut structure opening size in conventional units.
REFERENCES:
patent: 164658 (1875-06-01), Powers
patent: 594587 (1897-11-01), Almond
patent: 1482075 (1924-01-01), Fisher
patent: 2582444 (1952-01-01), Lucht
patent: 2778260 (1957-01-01), Jovanovich
patent: 3385142 (1968-05-01), Cunningham
patent: 3795406 (1974-03-01), Rohm
patent: 4136588 (1979-01-01), Roder
patent: 4213355 (1980-07-01), Colvin
Martin Timothy J.
Meislin D. S.
Oxenham J. Preston
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