US Patent: 1,364,937 - Monkey Wrench


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US Patent: 1,364,937

Monkey Wrench

Patentee:

Otey R. Kirkpatrick (exact or similar names) - 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

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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"