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US Patent: 441,199
Wrench
Patentee:
Stephen D. Shambarger - New Britain, CT

USPTO Classifications:
81/132, 81/356, 81/361, 81/409, 81/427

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

Assignees:
Stephen D. Shambarger - New Britain, CT
Henry Norton - New Britain, CT

Manufacturer:
Not known to have been produced

Witnesses:
Henry L. Reckard
Lewis C. Heermann
Francis H. Richards

Patent Dates:
Applied: Aug. 16, 1890
Granted: Nov. 25, 1890

Patent Pictures:
Stephen D. Shambarger patent November 25, 1890
USPTO pdf tiff
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Description:
A set screw engaging one of several dimples in the back of the main bar provides basic size adjustment for the frame carrying the movable jaw. Motion of the lever handle advances the gripping face of the adjustable jaw.

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