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US Patent: 753,915
Wrench
Patentee:
Charles H. W. Relyea - North Adams, MI

USPTO Classifications:
81/116

Tool Categories:
wrenches : alligator wrenches
wrenches : wrench adjustment types : wedge adjust wrenches

Assignees:
Charles H. W. Relyea - North Adams, MI
George H. Corbett - North Adams, MI

Manufacturer:
Unknown

Witnesses:
M. D. Blondel
Clarence Shaw
J. S. Blackmer
Euduar Taylor

Patent Dates:
Applied: Nov. 03, 1903
Granted: Mar. 08, 1904

Patent Pictures: [ 1 | 2 ]
Charles H. W. Relyea patent March 8, 1904
USPTO pdf tiff
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Description:
The adjustable jaw is held open by a spring, and the opening size adjusted by a "stepped" wedge. Both the fixed and adjustable ends are "alligator wrenches." The patent claims the structure and function of the adjustable jaw.

A known example is marked with the patentee name and patent date.

Compare the wedge adjustment in this wrench to the T.F. Vandegrift patent 444,171.

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