US Patent: 109,493


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US Patent: 109,493

Wrench

Patentees:

Peter Burress (exact or similar names) - Braidwood, IL

Conrad Cline (exact or similar names) - Braidwood, IL

USPTO Classifications:

81/134, 81/158

Tool Categories:

wrenches : wrench adjustment types : screw adjust wrenches

wrenches : wrench adjustment types : quick adjust wrenches

Assignees:

None

Manufacturer:

Burress and Cline - Martinsburg, WV

Witnesses:

Patent Dates:
Granted:	Nov. 22, 1870

Patent Pictures:

Burress and Cline Pat. Nov. 22, 1870

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Description:

The adjusting knurl is on the back side of the movable jaw, and is on a swing-out pin to allow for quick adjustment.

Ken Cope's "American Wrench Makers 1830-1930" cites an 1871 "Scientific American" announcement that the partners produced this wrench at Martinsburg, West Virginia.