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US Patent: 638,957
John H. Coes - Worcester, MA

USPTO Classifications:

Tool Categories:
wrenches : wrench components : wrench handle components

Coes Wrench Co. - Worcester, MA

Not known to have been produced

George W. Gregory
Alexander C. Proudfit
Edward F. Allen
Gustave F. Magnitzky

Patent Dates:
Applied: Jul. 07, 1899
Granted: Dec. 12, 1899

Patent Pictures:
John H. Coes patent Dec. 12, 1899
USPTO pdf tiff
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The patented feature is similar to Coes' parallel patent (No. 638,956). In this patent, "legs" extending from the ferule to the end of handle of a Coes "knife handle" wrench are fixed to the wrench shank by butterfly shaped wedges which are locked in place by a hammer blow, and the end cap keeps the "legs" tight to the shank during the process.

This is the second of three successive patents exploring alternative modes of strengthening the "knife handle."

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