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US Patent: 215,456
Wrench
Patentee:
Harrison P. Hood - Indianapolis, IN

USPTO Classifications:
81/154

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

Assignees:
Roswell R. Rouse - Indianapolis, IN

Manufacturer:
R. R. Rouse - Indianapolis, IN

Witnesses:
H. A. Moon
Edward A. Naltner
R. R. Rown

Patent Dates:
Applied: Mar. 24, 1879
Granted: May 20, 1879

Patent Pictures: [ 1 | 2 | 3 ]
Harrison P. Hood patent May 20, 1879
USPTO pdf tiff
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Description:
The movable jaw is held by a screw adjustment against a tapered surface.

The wrench was advertised in the June 26, 1879 IRON AGE, with "socket" jaws as an axle nut wrench, and with flat jaws as a "mechanic's wrench." The axle nut wrench version appears in 1880s ads and catalog listings.

The wrench as produced incorporated improvements noted in Hood's March 2, 1880 patent (no. 225,135).

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