Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 314,517
Wrench
Patentee:
Isaiah Cressey - Boston, MA

USPTO Classifications:
81/174, 81/92

Tool Categories:
wrenches : pipe wrenches

Assignees:
Porter Manufacturing Company - Revere, MA

Manufacturer:
Not known to have been produced

Witnesses:
B. J. Noyes
W. H. Sigston
Jos. P. Livermore

Patent Dates:
Applied: Nov. 03, 1884
Granted: Mar. 24, 1885

Patent Pictures:
Isaiah Cressey patent March 24, 1885
USPTO pdf tiff
Google Patents
Report data errors or omissions
Description:
A spring-loaded rocking pipe jaw on a screw-adjusted base. Ken Cope's "American Wrench Makers 1830-1930" shows this patent produced by the Porter Manufacturing Company of Revere, MA.

Although not explicitly mentioned in the specifications, it could be considered an improvement on Cressey's March 7, 1876 patent (no. 174,354).

Copyright © 2002-2017 - DATAMP