Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 1,334,156
Wrench
Patentees:
John H. Lagreid - Seattle, WA
Oscar Becklin - Seattle, WA

USPTO Classifications:
81/137

Tool Categories:
wrenches : wrench adjustment types : quick adjust wrenches
wrenches : pipe and nut combination wrenches

Assignees:
None

Manufacturer:
Becklin Wrench Co. - Seattle, WA

Witnesses:
none listed

Patent Dates:
Applied: Nov. 25, 1918
Granted: Mar. 16, 1920

Patent Pictures: [ 1 | 2 | 3 ]
John H. Lagreid & Oscar Becklin patent March 16, 1920
USPTO pdf tiff
Google Patents
Report data errors or omissions
Description:
The quick-adjust mechanism is a toggle with teeth, that engages an off-center rack on the shank. An unmarked 14 inch example matching this patent may represent an early attempt at manufacture; the parts look mass produced rather than hand made as would be the case for a prototype. The design has a provision for an adjustment lock which does not appear on the unmarked example.

The BECKLIN pipe wrench based on this patent matches further elaborations and refinements for which Becklin received pat. no 1,656,343 on Jan. 17, 1928.

Lagreid developed an alternate design with a sliding pawl to hold adjustment; it received patent no. 1,559,328 on Oct. 27, 1925.

Copyright © 2002-2017 - DATAMP