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US Patent: 225,135
Wrench
Patentee:
Harrison P. Hood (exact or similar names) - Indianapolis, IN

USPTO Classifications:
81/154, 81/177.1

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

Assignees:
Harrison P. Hood - Indianapolis, IN
Roswell R. Rouse - Indianapolis, IN

Manufacturer:
R. R. Rouse - Indianapolis, IN

Witnesses:
W. R. McIntosh
Alfred J. Sinker

Patent Dates:
Applied: Jan. 02, 1880
Granted: Mar. 02, 1880

Patent Pictures:
Harrison P. Hood patent March 2, 1880
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Description:
The specifications call this an improvement on Hood's May 20, 1879 patent (no. 215,456). In this improvement a thumb screw wedges a tapered block against a sliding jaw with a tapered back to hold the adjustment. The wrench as produced included a spinner handle on the axis of the clamping screw.

R.R. Rouse's 1879 machinist's wrench (the ad is shown in the DATAMP entry for patent no. 215,456) also resembles this patent.

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