US Patent: 601,970 - Combined Nut and Pipe Wrench


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US Patent: 601,970

Combined Nut and Pipe Wrench

Patentees:

Olof Larson (exact or similar names) - Ashland, WI

Charley Branzell (exact or similar names) - Ashland, WI

USPTO Classifications:

81/129.5

Tool Categories:

wrenches : pipe and nut combination wrenches

wrenches : wrench adjustment types : quick adjust wrenches

Assignees:

Olof Larson - Ashland, WI

Charley Branzell - Ashland, WI

Charley Ellison - Ashland, WI

S. Gust Peterson - Ashland, WI

Axel Fridstrom - Ashland, WI

John Sundell - Ashland, WI

Walfrid Nystrom - Ashland, WI

Andrew C. Anderson - Ashland, WI

Monsos and Larson - Ashland, WI

Manufacturer:

Not known to have been produced

Witnesses:

Patent Dates:
Applied:	Jul. 07, 1897
Granted:	Apr. 05, 1898

Patent Pictures:

Olof Larson and Charley Branzell patent April 5, 1898

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Description:

The central opening in the handle tapers with the narrowest part coming at the end holding the fixed nut and pipe jaw faces. The faces of the central opening have rack teeth. The shank of the movable jaw has corresponding rack teeth, and the pressure on the jaw faces pulls the rack teeth together to hold the adjustment.

The patent has an astounding list of assignees.