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US Patent: 23,857
Improved Wrench For Gas-Fitters
Improvement in Slide-Wrenches for Turning Gas Pipes and Other Round Articles
Patentee:
George B. Phillips - Albany, NY

USPTO Classifications:
81/161, 81/179

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

Assignees:
None

Manufacturer:
G. B. Phillips - Albany, NY

Witnesses:
John W. Taylor
Stephen R. Haines

Patent Dates:
Granted: May 03, 1859

Patent Pictures: [ 1 | 2 ]
George B. Phillips patent May 3, 1859, with illustration from 1860 catalog listing
USPTO pdf tiff
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Description:
Wedge-action component on adjustable jaw to grip pipe and other round objects, an adjusting nut with interrupted threads to accomplish quick-adjust effect, and second nut to lock adjustment.

The wrench as produced has the wedge-action gripping jaw piece, but not the two-stage adjusting nut.

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