US Patent: 160,946 - Pipe-Wrench


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US Patent: 160,946

Pipe-Wrench

Patentee:

Henry Otto (exact or similar names) - Bloomington, IL

USPTO Classifications:

81/93

Tool Categories:

wrenches : pipe wrenches

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Patent Dates:
Applied:	Jan. 09, 1875
Granted:	Mar. 16, 1875

Patent Pictures:

Henry Otto Pat. March 16, 1875

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Description:

The movable jaw adjusts by a rosette and screw in typical "monkey wrench" style; the spring on the back side of the movable jaw provides the necessary "give" for a pipe wrench, and "by means of the incline on the main stock it will suit all sizes alike."