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Automatic Dumping Cage

Description: Patent for a new and improved automatic dumping cage. This invention is to "use in the shafts of coal and other mines"(line 9-10).
Date: November 30, 1897
Creator: Gordon, William K.
Partner: UNT Libraries Government Documents Department

Air-Brake Governor

Description: Patent for an air brake governor improvement that regulates the pressure of fluid or air in the braking system as to prevent it from braking with too much pressure.
Date: July 10, 1906
Creator: Williams, Leonard F.
Partner: UNT Libraries Government Documents Department

Mechanical Movement.

Description: Patent for improved manner of rotary movement on various machines. Includes illustrations.
Date: December 16, 1902
Creator: Gibson, Levi D.
Partner: UNT Libraries Government Documents Department

Manually-Operated Coal-Mining Machine.

Description: Patent for manually mining coal and allows miners to cut coal close to the ground from an upright position, including illustrations.
Date: July 8, 1919
Creator: Jackson, Ed
Partner: UNT Libraries Government Documents Department

Motor-Plow.

Description: Patent for motor-plows with a spring-actuated motor driving device. The motor-plow can be rewound for use by the hand of the operators without leaving the driver's seat. The motor-plows have a plurality of moldboards and provide an inexpensive motor eliminating the use of draft-animals.
Date: June 25, 1918
Creator: Kucharski, Konstanty
Partner: UNT Libraries Government Documents Department

Steam-Pressure and Water-Level Recorder for Boilers.

Description: Patent for a division on the inventor's previous patent application (No. 404,658). This patent is for a device that records steam pressure and water levels in boilers, and is meant "to provide a new and improved steam pressure recorder for boilers, which is simple and durable in construction, very effective in operation, and arranged to automatically record the pressure of the steam in the boiler for a given period" (lines 14-19).
Date: April 18, 1893
Creator: Lewis, William Morgan
Partner: UNT Libraries Government Documents Department

Hat Display Rack.

Description: Patent for an improved hat display rack that can display a full line of hats. Illustrations and instructions included.
Date: March 21, 1916
Creator: Williams, Martin A.
Partner: UNT Libraries Government Documents Department

Recharging-Valve.

Description: Patent for a recharging valve "to permit recharging the auxiliary reservoirs of an automatic air-brake system without involving the release of the brakes." (lines 8-11) including instructions and illustrations.
Date: October 3, 1905
Creator: Williams, Leonard F.
Partner: UNT Libraries Government Documents Department

Saw-Operating Mechanism.

Description: Patent for a motor operated cross-cutting saw for cutting timber.
Date: April 23, 1907
Creator: Gordon, William Knox
Partner: UNT Libraries Government Documents Department

Automatic Switch Throwing Apparatus

Description: Patent for a device that will automatically throw a switch upon the presence of an on-coming train, and switch it back after the train has passed.
Date: December 5, 1916
Creator: Bida, Frank
Partner: UNT Libraries Government Documents Department
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