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US Patent: 754,063
Wrench
Patentees:
Charles E. Hawkins (exact or similar names) - East Pittsburg, Allegheny County, PA
Frank Cary (exact or similar names) - Wilkinsburg, Allegheny County, PA

USPTO Classifications:
81/156

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

Assignees:
None

Manufacturer:
Unknown

Witnesses:
H. C. Evert
E. E. Potter
K. H. Butler

Patent Dates:
Applied: Apr. 10, 1903
Granted: Mar. 08, 1904

Patent Pictures:
Charles E. Hawkins and Frank Cary patent March 8, 1904 with 12 inch example photo courtesy Les Williams
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Description:
Combination quick and screw-adjustment; a spring-loaded lever in the forward portion of the movable jaw has teeth that can be lifted away from the adjusting screw for quick adjustment.

A known example has the patent date prominently cast into the handle.

H. C. Evert & Co. - patent attorneys

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