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US Patent: 492,435
Pipe Wrench
Patentee:
Silas B. Rittenhouse (exact or similar names) - Liberty Mills, IN

USPTO Classifications:
81/116, 81/186

Tool Categories:
wrenches : wrench adjustment types : wedge adjust wrenches
wrenches : pipe wrenches
wrenches : wrench combination tools

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
A. B. Degges
R. A. Hoffur
John F. Eichholtz
Jacob Harter

Patent Dates:
Applied: Jul. 06, 1892
Granted: Feb. 28, 1893

Patent Pictures:
Silas B. Rittenhouse patent February 28, 1893
USPTO (New site tip)
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Description:
Alligator jaw type pipe wrench with the size of the opening adjusted by a wedge. The position of the wedge is held by small rack teeth, with or without an adjusting nut.

The end of the handle is formed into a hammer, although that feature is not included in the claims.

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