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US Patent: 461,402
Combination Tool
Patentee:
Edward A. Cochran - Pasadena, CA

USPTO Classifications:
81/147

Tool Categories:
combination tools
wrenches : wrench combination tools

Assignees:
Edward A. Cochran - Pasadena, CA
Alexander R. Metcalfe - Pasadena, CA

Manufacturer:
Not known to have been produced

Witnesses:
H. H. Rose
Jno. G. Rossiter
F. H. Schott
Wm. Boyden

Patent Dates:
Applied: Mar. 28, 1891
Granted: Oct. 13, 1891

Patent Pictures:
Edward A. Cochran patent October 13, 1891
USPTO pdf tiff
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Description:
The tool combines screwdriver, hammer, riveting-hammer, and adjustable wrench. The movable wrench jaw is held in engagement with the shank by a spring, and teeth on the jaw that grip teeth on the shank.

The corresponding Canadian patent is no. CA-42,476.

The wrench function was the subject of a subsequent improvement in patent no. 481,389.

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