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US Patent: 444,402
Monkey Wrench
John Kemp Starley - Coventry, England

USPTO Classifications:
81/167, 81/169

Tool Categories:
wrenches : bicycle or pocket wrenches

Overman Wheel Company - Chicopee Falls, MA

Overman Wheel Company - Chicopee Falls, MA

L. D. Kelsey
J. H. Shumway
Ernest Harker
B. J. Jarrett

Patent Dates:
Applied: Oct. 06, 1890
Granted: Jan. 06, 1891

Patent Pictures:
John K. Starley Pat. Jan. 6, 1891
USPTO pdf tiff
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The major feature of the patent is the design of the sheet metal stamping which forms the handle and support for the fixed jaw. The finished wrench presents a smooth finish which would not snag clothing. This style wrench is described, but not shown, in an 1887 British "Bicyclist's Handbook." (see British patents GB-188702596 & GB-188707648).

An 1894 advertisement indicates Overman Wheel was abandoning this design for a lighter style with one open side. The two are shown together as the bottom two wrenches in photo no. 101 in "Antique and Unusual Wrenches" by Schulzes.

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