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US Patent: 1,142,426
Wrench
Patentee:
Alton B. Heimbach - Duluth, MN

USPTO Classifications:
81/141

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

Assignees:
None

Manufacturer:
Lever Wrench Co. - Duluth, MN

Witnesses:
C. L. Shepherd
W. P. Lardner
Geo. E. Kricker, Jr.
A. L. Phelps

Patent Dates:
Applied: May 15, 1914
Granted: Jun. 08, 1915

Patent Pictures: [ 1 | 2 ]
Alton B. Heimback Patent June 8, 1915
USPTO pdf tiff
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Description:
A cam-action end at the pivot end of the swinging handle pulls the rack on the inside face of the movable jaw against a corresponding rack on the face of the main shank.

Extant HEIMBACH patent wrenches incorporate some features covered in his May 10, 1921 patent (no, 1,377,772).

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