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US Patent: 429,719
Pipe Wrench
Patentee:
Charles C. Coleman - 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:
L. C. Hills
E. H. Bond
L. A. Dickey
B. L. Hibbard

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

Patent Pictures:
Charles C. Coleman patent June 10, 1890
USPTO pdf tiff
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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.

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