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US Patent: 2,729,999
Adjusting and Locking Means for Slidable Jaw Wrench
William A. Barnes - Utica, NY

USPTO Classifications:

Tool Categories:
wrenches : wrench adjustment types : screw adjust wrenches
wrenches : wrench components : wrench adjustment locks

Utica Drop Forge & Tool Corp. - Utica, NY

Utica Drop Forge & Tool Corp. - Utica, NY

none listed

Patent Dates:
Applied: Nov. 15, 1954
Granted: Jan. 10, 1956

Patent Pictures:
William A. Barnes patent January 10, 1956
USPTO pdf tiff
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Locking mechanism used in UTICA 93 series SELECT-O-LOK adjustable wrenches. The sliding adjustment lock pulls out and turns with the adjusting worm in the "unlocked" position, and pushes in to lock the worm to the frame.

The specifications cite patent nos. 2,596,266, 2,657,606, 2,687,662, and 2,692,523 as references.

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