Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 212,298
Charles E. Billings - Hartford, CT

USPTO Classifications:
81/167, 81/177.1

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


Billings & Spencer - Hartford, CT

Theo. G. Ellis
Wilmot Horton
Norman W. Eayrs

Patent Dates:
Applied: Nov. 25, 1878
Granted: Feb. 18, 1879

Patent Pictures: [ 1 | 2 | 3 ]
Charles E. Billings Pat. Feb. 18, 1879
USPTO pdf tiff
Google Patents
Report data errors or omissions
The key features of the patent are the milled handle slot which forms the "way" for the adjustable jaw, and the measurement scale on the shank. This patent was the basis for a series of adjustable wrenches produced over several decades.

Pocket wrenches of this general appearance existed before this patent; F.H. AIKEN'S (Franklin, NH) EXCELSIOR appears in 1878 British importer's advertisements. Other manufacturers in the U.S., Britain and Germany produced similar pocket wrenches for several decades.

Copyright © 2002-2019 - DATAMP