Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 1,041,967
Wrench
Patentee:
William Cronk - Montour Falls, NY

USPTO Classifications:
81/112

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

Assignees:
None

Manufacturer:
Cronk and Carrier - Elmira, NY

Witnesses:
E. G. Cronk
G. H. Carrier
P. A. Blair
Aug. P. Jurgensen

Patent Dates:
Applied: Oct. 25, 1910
Granted: Oct. 22, 1912

Patent Pictures: [ 1 | 2 ]
William Cronk patent October 22, 1912
USPTO pdf tiff
Google Patents
Report data errors or omissions
Cronk Hanger Co.
Biography of William Cronk
Description:
The sliding button adjusts the jaw width; the patent shows a locking knurled nut. The adjustment mechanism was used on both adjustable "alligator" wrenches and nut wrenches like those shown in pictures #29, #450, #451, and #574 in "Antique and Unusual Wrenches" by Schulzes.

Ken Cope's "American Wrench Makers 1830-1930" gives a brief history of the manufacturer.

Patent no. 618,485 uses a very different principal of slide at the intersection of two slots.

Copyright © 2002-2017 - DATAMP