Adjustable vice-locking end wrench

Details Adjustable vice-locking end wrench Adjustable vice-locking end wrench

1987-06-05

1989-01-03

Smith, James G.

Tools

Wrench, screwdriver, or driver therefor

Slidable jaw adjustments

81315, 81362, 81131, B25B 1316

Patent

active

047948248

ABSTRACT:
An improved and simplified vice-locking adjustable end wrench with a primary handle whose jaws are manually adjustable by a customary knurled worm gear for initial adjustment, and a simple, single clamping and gripping pivotal handle relative to the usual handle and secured at one end at the jaws and freely extending to the end of the handle to achieve a vice-like gripping action with maximum desired mechanical advantage and force when the handles are forced together to an adjustable extent in a nested relationship so that the clamping handle can effectively carry the initial wrench closing forces.

REFERENCES:
patent: 2156529 (1939-05-01), Day
patent: 3190154 (1965-06-01), Chapman
patent: 3333492 (1967-08-01), Chapman
patent: 4375174 (1983-03-01), Shanley, Jr.

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