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US Patent: 461,714
Pipe Wrench
Patentee:
John Ryan - New York, NY

USPTO Classifications:
81/167, 81/179

Tool Categories:
wrenches : pipe wrenches
wrenches : wrench components : wrench jaw components

Assignees:
None

Manufacturer:
John Ryan - New York, NY

Witnesses:
C. Sedgwick
H. Walker
J. Fred. Acker

Patent Dates:
Applied: Jul. 08, 1891
Granted: Oct. 20, 1891

Patent Pictures:
John Ryan patent October 20, 1891
USPTO pdf tiff
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Description:
Movable jaw and adjusting nut are unremarkable. The combination jaw and frame on the handle are the primary innovation in this patent.

Ken Cope's "American Wrench Makers 1830-1930" cites a Scientific American listing that indicates Ryan intended to put this in production.

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