US Patent: 269,234 - Pipe Wrench


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US Patent: 269,234

Pipe Wrench

Patentee:

Edwin A. Robbins (exact or similar names) - Boston, MA

USPTO Classifications:

81/127, 81/166

Tool Categories:

wrenches : pipe wrenches

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Patent Dates:
Applied:	Oct. 02, 1882
Granted:	Dec. 19, 1882

Patent Pictures:

Edwin A. Robbins patent December 19, 1882

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Description:

The adjustable jaw and its adjusting nut fit within the framework of the fixed jaw. A spur on the end of the hinged handle fits in a groove in the adjusting nut. The movement of the hinged handle allows limited motion so the jaws grip without crushing the pipe.