US Patent: 552,795 - Improvements in Monkey Wrenches


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US Patent: 552,795

Wrench
Improvements in Monkey Wrenches

Patentee:

Frederic Pemberton Thompson (exact or similar names) - Fredericton, NB Canada

USPTO Classifications:

81/152

Tool Categories:

wrenches : wrench adjustment types : quick adjust wrenches

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Patent Dates:
Applied:	Apr. 22, 1895
Granted:	Jan. 07, 1896

Patent Pictures:

Frederic Pemberton Thompson patent January 7, 1896

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Description:

A diagonal link in the movable jaw binds on the main shank to hold the adjustment. The link is optionally positioned by a screw adjustment or compression spring.