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US Patent: 1,258,054
Wrench
Ratchet Monkey Wrench
Patentee:
Laroy S. Starrett - Athol, MA

USPTO Classifications:
81/157

Tool Categories:
wrenches : wrench adjustment types : screw adjust wrenches
wrenches : nut wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Ernest W. Taylor
Frank E. Wing

Patent Dates:
Applied: Aug. 02, 1915
Granted: Mar. 05, 1918

Patent Pictures:
Laroy S. Starrett patent March 5, 1918
USPTO pdf tiff
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Description:
The patented device is to easily open the movable jaw on reverse movement of the wrench, and return it to its adjusted position without resetting the adjusting screw. The adjusting screw bears agains a sliding stirrup which can be retracted by the thumb lever, and returned to its normal position by a spring.

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