Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 803,319
Wrench
Patentee:
Frederick Zwicker - Indianapolis, IN

USPTO Classifications:
81/318

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

Assignees:
None

Manufacturer:
Frederick Zwicker - Indianapolis, IN

Witnesses:
V. H. Lockwood
N. Allemong

Patent Dates:
Applied: Jun. 10, 1904
Granted: Oct. 31, 1905

Patent Pictures: [ 1 | 2 | 3 ]
Frederick Zwicker Pat. Oct. 31. 1905
USPTO pdf tiff
Google Patents
Report data errors or omissions
Description:
The two halves of the tongs or piers-like wrench have a shifting pivot point with the adjustment held by facing interlocking teeth. Produced in both pipe and nut gripping versions marked with a bold "Z." The initial hardware trade announcements listed the nut wrench in 10 and 12-inch sizes.

The nut wrench version is #550 in "Antique and Unusual Wrenches" by Schulzes, and the pipe wrench version is #732.

Copyright © 2002-2017 - DATAMP