Adjustable wrench mechanism

Details Adjustable wrench mechanism Adjustable wrench mechanism

1975-06-30

1977-03-22

Smith, Al Lawrence

Tools

Wrench, screwdriver, or driver therefor

Slidable jaw adjustments

279110, B25B 1316

Patent

active

040129713

ABSTRACT:
An adjustable composite wrench adapted for use both as a box or socket wrench and as an Allen wrench. A plurality of work-engaging elements are individually mounted for translational movement along radial paths. Restraining means prevent rotational movement of the work-engaging elements relative to the path of movement. Gear means are operatively associated with each of said elements such that rotation of the gear means causes, in cooperation with the restraining means, translational movement of the element along its radial path. Drive means common to each of the individual gear means provide synchronous movement of the gear means and their associated work-engaging elements whereby such elements are brought into engagement with a work piece.

REFERENCES:
patent: 573732 (1896-12-01), Warn
patent: 594023 (1897-11-01), Krueger
patent: 2726093 (1955-12-01), Kalenian
patent: 3765691 (1973-10-01), Saruhashi

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