US Patent: 429,719 - Pipe Wrench


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US Patent: 429,719

Pipe Wrench

Patentee:

Charles C. Coleman (exact or similar names) - Birmingham, AL

USPTO Classifications:

81/134, 81/135, 81/90.9

Tool Categories:

wrenches : pipe wrenches

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Patent Dates:
Applied:	Aug. 13, 1889
Granted:	Jun. 10, 1890

Patent Pictures:

Charles C. Coleman patent June 10, 1890

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Description:

The adjustable jaw slides in a frame. The position of the adjustable jaw is held by a toothed latch piece on a spring that engages rack teeth on the shank. The handle is connected in parallel to the other jaw.