Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 221,633
Pipe-Wrench
Patentee:
John H. Vinton - Bridgeport, CT

USPTO Classifications:
81/108, 81/164

Tool Categories:
wrenches : wrench components : wrench handle components
wrenches : pipe wrenches

Assignees:
Frank Armstrong - Bridgeport, CT

Manufacturer:
Not known to have been produced

Witnesses:
John Tyler
F. W. Howard
M. M. Rohrer
Wm. C. McIntire

Patent Dates:
Applied: Oct. 23, 1878
Granted: Nov. 11, 1879

Patent Pictures:
John H. Vinton patent November 11, 1879
USPTO pdf tiff
Google Patents
Report data errors or omissions
Description:
The handle screws in and out to adjust the "fixed" jaw. That jaw is held tight against the handle by an internal coil spring. The hook jaw has a stop to prevent its swinging back against the handle.

Copyright © 2002-2019 - DATAMP