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Gas Producer.

Description: Patent for improvements to gas producers of the type in which combustible gases are evolved from coal, lignite, etc., during the incomplete combustion thereof.
Date: April 11, 1922
Creator: Johnston, Horace G.
Partner: UNT Libraries Government Documents Department

Playing Cards

Description: Patent for playing cards. Illustration included.
Date: October 11, 1910
Creator: Hammett, Walter A.
Partner: UNT Libraries Government Documents Department

Well Bucket

Description: Patent for Improvements in well buckets. The bucket has an inlet valve at the bottom and an air escape valve at the top that permits air to escape freely while preventing the entrance of dirt and extraneous matter to the interior of the bucket.
Date: April 11, 1922
Creator: Reese, Samuel L.
Partner: UNT Libraries Government Documents Department

Fifth Wheel.

Description: Patent for a new and improved fifth wheel for vehicles. This design "consists of improvements in the construction and arrangement of the fifth-wheel apparatus of carriages, the object of which is to enable the parts to be made more cheaply, also to be more readily removable, and also to be more durable in use than as such apparatus is now made" (lines 7-13).
Date: July 11, 1882
Creator: Weber, Robert
Partner: UNT Libraries Government Documents Department

Articulating Plate

Description: Patent for "new and useful articulating plate" (lines 5-6), including illustration and instructions.
Date: April 11, 1900
Creator: Driskill, Theodore Frederick
Partner: UNT Libraries Government Documents Department

Motor Vehicle

Description: Patent for motor vehicle. Illustrations included.
Date: October 11, 1904
Creator: Thomas, James Clarence
Partner: UNT Libraries Government Documents Department

Air-Brake.

Description: Patent for "a direct air brake system [that is] adapted to be used in combination with an automatic system, whereby the brakes can be applied by either the automatic or quick system, or the direct, or by both, as the conditions may require" (lines 8-13).
Date: July 11, 1893
Creator: Pinkston, Lucien A.
Partner: UNT Libraries Government Documents Department
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