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US Patent: 690,688
Combination Wrench
Patentee:
Clarence J. Barnes - Liverpool, NY

USPTO Classifications:
81/163, 81/177.8, 81/178

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

Assignees:
None

Manufacturer:
Unknown

Witnesses:
J. J. Laass
H. B. Smith

Patent Dates:
Applied: May 09, 1901
Granted: Jan. 07, 1902

Patent Pictures: [ 1 | 2 ]
Clarence J. Barnes patent Jan. 7, 1902 - details omitted
USPTO pdf tiff
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Description:
Adjustable angle, adjustable jaw wrench with reversible jaw face to convert from nut wrench to pipe wrench. The jaw opening is adjusted by a screw with left- and right-hand threads. A known example is marked only with the patent date, and does not include the pipe grip feature included in the patent.

E. Laas - patent attorney

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