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Caustic-Soda Process.

Description: Patent for mixing anhydrous sodium-sulfate with saw dust, heating the mixture in a furnace to 880 degrees Celsius and letting it partially cool. This process will convert the sodium-sulfate to sodium sulfide which when combined with the saw dust creates a liquid which will not oxidize because of the saw dust. The saw dust prevents the mixture from becoming volatile. When lime is added to the mixture then caustic soda is created.
Date: September 7, 1915
Creator: Hirt, Jules Hector
Partner: UNT Libraries Government Documents Department

Car-Coupling.

Description: Patent for a simple, durable, and safe car-coupling that will not accidentally uncouple, and can uncouple without the operator stepping between the cars. It "consists principally of a knuckle pivoted in the drawhead and provided with cam surfaces, and an arm mounted to swing and adapted to engage the said cam surfaces to open and close the knuckle" (lines 14-18). The coupling can also couple cars of different heights.
Date: September 18, 1894
Creator: Schairer, John Jacob
Partner: UNT Libraries Government Documents Department

Cigarette Package.

Description: Patent for "new and useful Improvements in Cigarette Packages" (lines 5-6) including "the method of dispensing or extracting cigarettes from the package and as well to the method of making a cigarette package" (lines 9-12), including one illustration.
Date: September 5, 1922
Creator: Sohn, Elmer L.
Partner: UNT Libraries Government Documents Department

Valve and Valve-Seat.

Description: Patent for a valve and valve seat made of stainless steel for the purpose of preventing rusting and corrosion.
Date: September 20, 1921
Creator: Bevelle, Joseph C. & Smith, Joseph J.
Partner: UNT Libraries Government Documents Department

Piston Packing

Description: Patent for an improved means of packing pistons in gas, steam, or similar engines, which reduces the likelihood of loss of compression.
Date: September 27, 1921
Creator: Williams, Nolan S.
Partner: UNT Libraries Government Documents Department

Aeroplane

Description: Patent for an airplane with improved steering capabilities and adjustments for atmospheric conditions.
Date: September 29, 1914
Creator: Canion, William G.
Partner: UNT Libraries Government Documents Department

Apparatus for Utilizing Hot Slag for Heating Purposes

Description: Patent for an apparatus which holds molten slag in the exterior chambers of the receptacle such that the interior chambers can receive water to be heated, producing steam and hot air.
Date: September 11, 1900
Creator: Wells, James L.
Partner: UNT Libraries Government Documents Department

Air-Lock for Mines and Tunnels

Description: Patent for an air lock to remove water, polluted air, and heat from mines and tunnels and force in fresh air. Illustrations included.
Date: September 8, 1908
Creator: Durack, Partick H.
Partner: UNT Libraries Government Documents Department

Aparatus for Cleaning Lechuguilla, Henequen, and Analogous Fibrous Plants.

Description: Patent for an improved apparatus for scraping lechugilla, henequen, and analogous fibrous plants. This apparatus scrapes the stalks of the plants mechanically and separates the pulp from the fiber of the plant so that the fiber will be cleaned and ready for use.
Date: September 3, 1918
Creator: Aguilar, Alfonso
Partner: UNT Libraries Government Documents Department
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