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Automatic Air-Brake Coupling.

Description: Patent for "a new and useful improvements in automatic air-brake couplers to enable others skilled in the art to make and use the same, the invention also relates to improvements in automatic air-brake couplings in cars". (lines 5-10) including instructions and illustrations.
Date: July 17, 1900
Creator: Cary, Lewis C.
Partner: UNT Libraries Government Documents Department

Corn-Popper

Description: Patent for a corn popper used for popping corn and general cooking. Illustrations included.
Date: June 25, 1907
Creator: Young, G. B.
Partner: UNT Libraries Government Documents Department

Corn-Popper

Description: Patent for a corn popper. Illustrations included.
Date: June 25, 1907
Creator: Young, George B. & Young, Joseph H.
Partner: UNT Libraries Government Documents Department

Air-Cleaning System

Description: Patent for an air cleaning system to be used in homes. Illustrations included.
Date: April 20, 1909
Creator: Mayo, William C. & Houlehan, John
Partner: UNT Libraries Government Documents Department

Annuciator

Description: Patent for an annunciator. "This invention is designed for use in connection with a complete traction system" (lines 13-14). The design drives instruments via a train air system so that air pressure is constantly maintained. Illustrations included.
Date: February 18, 1908
Creator: Mayo, William C.; Houlehan, John & Briggs, George E.
Partner: UNT Libraries Government Documents Department

Corn-Popper

Description: Patent for a corn popper that can also be used for roasting nuts or for general cooking. Illustrations included.
Date: December 31, 1907
Creator: Young, George B. & Young, Joseph H.
Partner: UNT Libraries Government Documents Department

Air-Brake, Lighting, and Signaling System for Railway-Trains

Description: Patent for an electrical system which provides air brake, lighting, and signaling mechanisms for trains. Illustrations included.
Date: February 18, 1908
Creator: Mayo, William C. & Houlehan, John
Partner: UNT Libraries Government Documents Department

Auto-Door Stop

Description: Patent for a door stop that is cheap to produce and holds doors firmly.
Date: November 3, 1908
Creator: Hill, Ulysses H.
Partner: UNT Libraries Government Documents Department

Cleaning Apparatus.

Description: Patent for a cleaning apparatus, which cleans objects by blasting air across them and has an air cleaning system for use after the cleaning is done.
Date: June 1, 1909
Creator: Mayo, William C. & Houlehan, John
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

Aparejo

Description: Patent for more efficient and durable pack-saddle (aparejo) used by United States Army. Casing involves hollow boot-sticks and rubber-encased steel, with better fitting to prevent fatigue of animal.
Date: February 11, 1902
Creator: Keller, John & Titsworth, Richard
Partner: UNT Libraries Government Documents Department

Combined Pen and Pencil Rack

Description: Patent for a pen and pencil rack. Illustrations included.
Date: November 26, 1907
Creator: Twaddell, Janie S.
Partner: UNT Libraries Government Documents Department

Apparatus for Oiling Railway-Tracks.

Description: Patent for improvements in mechanism for “applying oil to curves and switches of street railway tracks” (lines 6-7) by using an “oil-tank [that] is arranged in the upper position of the hood or shield over the car-wheel. The valve is in the bottom of the oil-space and may be controlled by a lever arranged to turn or lift in the valve, and under the valve is arranged the oiling-wheel, which runs lightly on the track or face of the car-wheel and applied the oil." (Page 2, lines 69-76) Includes il… more
Date: August 4, 1891
Creator: Ennis, Thomas L.
Partner: UNT Libraries Government Documents Department

Apparatus for Condensing Flue-Dust.

Description: Patent for an apparatus for "condensing and saving the flue-dust passing with the waste gases through the chimney of lead-smelting furnaces." (Lines 9-12) Includes instructions and illustrations.
Date: March 29, 1892
Creator: Hizon, Hiram W.
Partner: UNT Libraries Government Documents Department

Combined Ruler and Blotter

Description: Patent for a combined ruler and blotter (used for writing with ink). Proposed improvement of basic design by being more compact, cheaper to make, and includes a way to tear paper along the ruler's edge.
Date: July 28, 1914
Creator: Schmidt, Edward
Partner: UNT Libraries Government Documents Department

Arch and Instep Support for Boots and Shoes

Description: Patent for a removable arch and instep support as part of a shoe or boot.
Date: November 14, 1916
Creator: Rokahr, Charles
Partner: UNT Libraries Government Documents Department

Aerial Projectile and Launching Mechanism Therefor

Description: This document is a patent for the invention of the Aerial Projectile and Launching Mechanism Therefor. According to its inventor Frank M. Bell, the object of this mechanism is to fire aerial projectiles or torpedoes more accurately at their intended target. This mechanism can be called an anti-observation balloon/zeppelin weapon and it would see some usage by the Allied air forces during this conflict.
Date: October 10, 1916
Creator: Bell, Frank M.
Partner: UNT Libraries Government Documents Department

Sight for Firearms

Description: Patent for sight for firearm that provides a transparent lens with sight marks and a scale to determine what sight mark to use when firing at an object.
Date: unknown
Creator: Critchett, James Clyde
Partner: UNT Libraries Government Documents Department

Combined Shade and Curtain-Pole Bracket.

Description: Patent for combined shade and curtain pole brackets to "be attached to the upper sash of the window" (lines 14), removable, and adjustable, with illustrations.
Date: April 11, 1916
Creator: Levingston, Thomas C. & Van Epps, Nettie M.
Partner: UNT Libraries Government Documents Department

Fly-Trap.

Description: Patent for an improved fly-trap that effectively ensnares flies while providing an efficient method of fly disposal and easier access to the trap for cleaning, including illustrations.
Date: March 9, 1915
Creator: Crawford, James
Partner: UNT Libraries Government Documents Department
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