US Patent: 553,015 - Pipe Wrench


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US Patent: 553,015

Pipe Wrench

Patentee:

Elba Pember (exact or similar names) - Pemberville, OH

USPTO Classifications:

81/99

Tool Categories:

wrenches : pipe wrenches

wrenches : wrench adjustment types : self-adjust wrenches

Assignees:

Elba Pember - Pemberville, OH

C. O. Potter - Pemberville, OH

Manufacturer:

Not known to have been produced

Witnesses:

Patent Dates:
Applied:	Sep. 20, 1895
Granted:	Jan. 14, 1896

Patent Pictures:

Elba Pember patent January 14, 1896

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Description:

The spring holds the swinging jaw in engagement with the work piece. Pressing on the spring disengages the grip. The construction enables one-handed operation, and the wrench will operate in vertical or horizontal positions.