US Patent: 646,077


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US Patent: 646,077

Wrench

Patentee:

Martin D. Miller (exact or similar names) - Kansas City, MO

USPTO Classifications:

30/241, 7/139, 81/181, 81/186, 81/357

Tool Categories:

wrenches : wrench adjustment types : quick adjust wrenches

wrenches : pipe wrenches : pipe tongs

combination tools

Assignees:

Edgar S. Miller - Omaha, NE

Maurice Rosenthal - Omaha, NE

Frederick R. Stone - Omaha, NE

Manufacturer:

Not known to have been produced

Witnesses:

H. F. Riley

J. Frank Culverwell

Edgar S. Miller

Laurence Eugene Lyons

Patent Dates:
Applied:	Jun. 19, 1899
Granted:	Mar. 27, 1900

Patent Pictures:

Martin D. Miller patent March 27, 1900

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Description:

The jaws are closed by a ratcheting tongs type action. The jaws are shaped to grip pipe or rods, as well as nuts. The ratcheting pawl has limited range of motion, so that fully opening the handles disengages the pawl to allow the jaws to be fully opened.

The tool includes a wire cutter in the jaws and a screwdriver on the end of one handle.