Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 234,091
Wrench
Patentee:
Henry Artemas Thompson - Farmington, ME

USPTO Classifications:
81/174

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

Assignees:
None

Manufacturer:
Portland Wrench Co. - Portland, ME

Witnesses:
E. H. Bradford
F. L. Ourand
J. G. Brown
James P. Russell

Patent Dates:
Applied: Aug. 02, 1880
Granted: Nov. 02, 1880

Patent Pictures: [ 1 | 2 ]
H. A. Thompson Pat. Nov. 2, 1880
USPTO pdf tiff
Google Patents
Report data errors or omissions
Description:
The wrench has a long sliding jaw, and a unique adjusting nut "which may be rapidly twirled by striking the respective arms successively.." Some wrenches are found with a single adjustable socket as shown in this patent and Canadian patent CA-13,865; most correspond to Thompson's Oct. 16, 1883 patent (no. 286,653).

John Hill's May 2, 1899 patent (no. 624,211) is a similar design.

Copyright © 2002-2017 - DATAMP