Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 168,406
Franklin S. Ober - Washington, DC

USPTO Classifications:
81/128, 81/60

Tool Categories:
wrenches : ratchet wrenches

Franklin S. Ober - Washington, DC
Walton Brothers - New York, NY

Not known to have been produced

P. C. Dieterich
W. C. McArthur
C. H. Watson
H. A. Hall

Patent Dates:
Applied: Aug. 04, 1875
Granted: Oct. 05, 1875

Patent Pictures:
Franklin S. Ober Pat. October 5, 1875
USPTO pdf tiff
Google Patents
Report data errors or omissions
The patent is for the adjustable "socket" within a ratchet head. The jaw mechanism employs springs and pawls to close the jaws upon a nut or bolt to be turned. The closing action is driven by moving the handle; the pawl mechanism can be disengaged to release the grip or expand the jaw opening.

Copyright © 2002-2019 - DATAMP