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US Patent: 1,471,413
Wrench
Patentee:
John R. Palmeter - Jamestown, NY

USPTO Classifications:
81/145

Tool Categories:
wrenches : nut wrenches
wrenches : wrench adjustment types : quick adjust wrenches

Assignees:
None

Manufacturer:
Palmeter Tool Co. - Jamestown, NY

Witnesses:
Corinne V. Swanson
E. T. Baldwin

Patent Dates:
Applied: Feb. 21, 1922
Granted: Oct. 23, 1923

Patent Pictures:
John R. Palmeter Pat. Oct. 23, 1923
USPTO pdf tiff
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Description:
The push button on the side of the handle is connected to internal toothed slides which can mesh with teeth on the movable jaw. To minimize the "steps" between adjustment stops, the slides are loosely connected and have teeth a "half-space" apart.

Pat. no. 1,470,184 applies a similar adjustment principle to a "monkey wrench."

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