Adjustable socket wrench

Details Adjustable socket wrench Adjustable socket wrench

1979-11-16

1981-07-14

Smith, James G.

Tools

Wrench, screwdriver, or driver therefor

Slidable jaw adjustments

81170, B25B 1316

Patent

active

042779910

ABSTRACT:
A double-jawed wrench head for use with a conventional socket wrench handle is disclosed which allows adjustment of jaw spacing so as to accommodate various sized nuts or lag bolts or the like using only a single head. The head preferably includes a pair of wrench jaws respectively shiftable by means of a worm gear and rack arrangement, with a polygonal aperture provided for receiving the drive stub or block of a socket wrench handle. The worm gear advantageously includes oppositely directed threaded sections for simultaneous shifting of the jaws toward and away from each other.

REFERENCES:
patent: 1047046 (1912-12-01), Gronkowski
patent: 2600617 (1952-06-01), Coates
patent: 2801562 (1957-08-01), Stricklett et al.

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