US Patent: 516,191 - Combination Wrench


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US Patent: 516,191

Combination Wrench

Patentee:

Edward O. Ely - Boston, MA

USPTO Classifications:

81/93

Tool Categories:

wrenches : pipe and nut combination wrenches

Assignees:

None

Manufacturer:

Trimont Manufacturing Company - Roxbury, MA

Witnesses:

Patent Dates:
Applied:	Mar. 27, 1893
Granted:	Mar. 13, 1894

Patent Pictures:

Edward O. Ely patent March 13, 1894, plus 1895 TRIMO COMBINATION WRENCH ad listing

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Description:

The set screw in the side of the movable jaw is to hold the jaw steady when used for the nut wrench function. It is backed off to allow for lateral movement when the wrench is used as a pipe wrench.