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US Patent: 464,238
Pipe Wrench
Patentee:
Ralph Atkin (exact or similar names) - Painesville, OH

USPTO Classifications:
81/109, 81/134

Tool Categories:
wrenches : pipe wrenches
wrenches : wrench adjustment types : quick adjust wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
E. Byron Gilchrist
C. H. Dorer
Ward Hoover
Patent Dates:
Applied: Jun. 17, 1891
Granted: Dec. 01, 1891

Patent Pictures:
Ralph Atkin patent December 1, 1891
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Description:
A leaf spring both works to close the hook jaw, and to pull the adjustable pivot point into one of the adjustment slots.

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