US Patent: 664,425 - Pipe Wrench


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US Patent: 664,425

Pipe Wrench

Patentee:

Nils Nilson (exact or similar names) - Absaroka, ND

USPTO Classifications:

81/111

Tool Categories:

wrenches : alligator wrenches

wrenches : wrench adjustment types : quick adjust wrenches

Assignees:

None

Manufacturer:

NILSON Co. - Casselton, ND

Nilson-Walters Wrench Co. - Casselton, ND

Witnesses:

Patent Dates:
Applied:	Mar. 31, 1900
Granted:	Dec. 25, 1900

Patent Pictures: [ 1 | 2 | 3 ]

Nils Nilson patent December 25, 1900

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NILSON-WALTERS Wrench -45spaces

Description:

The moving jaw slides transversely to the fixed jaw. A spring holds the notched inner face of the shank against a corresponding rack on the inner face of the slot in the main bar.

A couple of different maker names appear on examples of this wrench, and the exterior styling differs as well: NILSON Co Casselton N.D. and Nilson-Walters Wrench Co. Casselton N.D.