Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 876,680
Ratchet Screw Driver
Patentee:
James P. Bartholomay - Roxbury, MA

USPTO Classifications:
81/30, 81/32

Tool Categories:
screwdrivers : screwdriver mechanisms : ratcheting screwdrivers
wrenches : ratchet wrenches

Assignees:
None

Manufacturer:
Will B. Lane - Chicago, IL

Witnesses:
Frank Meredith
Alfred Guthrie
R. R. Bond
R. S. Boswell

Patent Dates:
Applied: Oct. 14, 1907
Granted: Jan. 14, 1908

Patent Pictures: [ 1 | 2 ]
James P. Bartholomay patent January 14, 1908
USPTO pdf tiff
Google Patents
Report data errors or omissions
Description:
The ratchet head and pawl are similar to that later adopted for the R.F. Sedgley HEXALL ratchet. One distinctive feature of this ratchet is the spring for the ratchet pawl which also switches the ratchet direction by being moved to one or the other side of a boss on the handle.

The ratchet was adapted as the driver for the WILL B. LANE UNIQUE Ratchet and Socket wrench set. In early 1914, Lane gave a Philadelpia address; later the company's address was Chicago.

Compare the ratchet and pawl structure to Willey B. Lane's 1910 patent nos. 969,379 and 979,862, produced as LANE'S RATCHET SCREW DRIVER AND WRENCH.

Copyright © 2002-2017 - DATAMP