If you find a patent number or patent date by this manufacturer that is not on this
list, please contact the Site Historian.
Key to Links for Patent Information
USPTO = U.S. Patent Office .
Images of the actual patent can be viewed on the U.S. Patent Office web site but
a special TIFF viewer must be installed with your browser in order properly work.
More information on how to configure your computer to view these patents can be
found at TIFF image Viewers
for Patent Images.
DATAMP = Directory of American Tool And
Machinery Patents . A sister site to VintageMachinery.org with information
on patents related to machinery and tools. A much easier user interface than the
USPTO's for finding information on machinery patents.
|
490,863
|
Jan. 31, 1893
|
Automatic Chuck and Rod Feeder
|
Conrad M. Conradson |
Madison, Dane County, WI |
|
|
639,888
|
Dec. 26, 1899
|
Turret Lathe
|
Conrad M. Conradson |
Madison, Dane County, WI |
Wood & Boyd - patent attorneys
Claim:
In a lathe employing a main spindle, a geared chuck secured thereto, a series of loose gears journaled on said spindle, a clutch journaled on the spindle between the loose gears, in combination with a back gear-shaft, loose gears journaled thereon and meshing with the gears of the main spindle, clutch and lever mechanism for clamping said gears to their shafts whereby various rates of speed for the work-chuck are obtained, substantially as specified.
|