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US Patent: 1,364,937
Monkey Wrench
Patentee:
Otey R. Kirkpatrick - Fort Worth, TX

USPTO Classifications:
81/145

Tool Categories:
wrenches : wrench adjustment types : quick adjust wrenches

Assignees:
None

Manufacturer:
Ever-Ready Wrench Co. - Fort Worth, TX

Witnesses:
none listed

Patent Dates:
Applied: Dec. 16, 1919
Granted: Jan. 11, 1921

Patent Pictures: [ 1 | 2 ]
Otey R. Kirkpatrick patent January 11, 1921
USPTO pdf tiff
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Description:
The quick adjust mechanism is concealed within the base of the movable jaw. A toggle extending from the base lifts a spring-loaded slide that has teeth that engage a rack on the face of the main shank. The design is intended to facilitate one-handed operation.

Known examples marked "EVER-READY WRENCH CO - FORT WORTH, TEXAS / DROP FORGED - PATENT APPLIED FOR"

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