4 Matching Results

Search Results

Results: 1 - 4

Hydraulic Swivel

Description: Patent for improvements in the construction and design of hydraulic swivels.
Date: December 17, 1907
Creator: Johnston, Horace G.
Partner: UNT Libraries Government Documents Department

Switch.

Description: Patent for a switch in which it can be “automatically operated by a moving train either for the purpose of opening or closing the switch, under the control of the engineer, who without stopping the train may open the switch and run his train onto the switch-rails or a siding without slowing up the train further than is necessary to avoid derailing the train when passing from the main line to the switch or siding.” (Lines 11-20) Illustration is included.
Date: May 17, 1904
Creator: Harris, Irvin F.
Partner: UNT Libraries Government Documents Department

Baling-Press

Description: Patent for a baling press, designed so that the feeding and baling of cotton or straw is performed automatically, Illustrations included.
Date: December 17, 1907
Creator: Cumpston, Frederick B.
Partner: UNT Libraries Government Documents Department

Boll Weevil Exterminator

Description: Patent for a boll weevil exterminator. Illustration included.
Date: August 17, 1909
Creator: Evans, James W.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen