Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 218,285
Pipe-Wrench
Frictional Pipe-Wrench
Patentee:
Edwin S. Leaycraft - Brooklyn, NY

USPTO Classifications:
81/64

Tool Categories:
wrenches : pipe wrenches : chain and strap wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Chas. H. Smith
Geo. T. Pinckney
William G. Mott

Patent Dates:
Applied: Jan. 18, 1879
Granted: Aug. 05, 1879

Patent Pictures:
Edwin S. Leaycraft patent August 5, 1879
USPTO pdf tiff
Google Patents
Report data errors or omissions
Description:
This patent uses a thin sheet metal strap as the gripping portion. It was intended for use with threaded brass or copper pipe.

Several 20th Century oil filter and jar wrenches operate on this principle.

Copyright © 2002-2017 - DATAMP