US Patent: 753,915


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US Patent: 753,915

Wrench

Patentee:

Charles H. W. Relyea (exact or similar names) - 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:

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

Patent Pictures: [ 1 | 2 ]

Charles H. W. Relyea patent March 8, 1904

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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.