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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

Antifreezing Valve and Closet-Cistern

Description: Patent for "valves which will allow all the water to flow out of the popes to a position below freezing-point after each application of water, whether the water is used in a closet-cistern or drawn out of a hudrant or other application is made, and to arrange the valves so that the supply-valves will be automatically closed by water-pressure in connection with the operation of a siphon in a closet-cistern and the waste-valve will be closed by the pressure of water, siphonic action, or both, whe… more
Date: April 23, 1901
Creator: Wilkes, George W.
Partner: UNT Libraries Government Documents Department

Animal-Trap.

Description: Patent for an improved self-setting trap that can capture and kill animals while preventing them from reaching the bait.
Date: August 28, 1906
Creator: Sheridan, William H.
Partner: UNT Libraries Government Documents Department

Animal-Trap.

Description: Patent for a new and useful animal trap, including instructions and illustrations.
Date: December 5, 1899
Creator: Buckersberg, Simon
Partner: UNT Libraries Government Documents Department

Aeroplane

Description: Patent for an improvement to aeroplanes which includes movable horizontal and vertical planes (or curtains).
Date: March 26, 1912
Creator: Blewett, Baxter W.
Partner: UNT Libraries Government Documents Department

Aerial Vehicle

Description: Patent for an aerial vehicle. Illustrations included.
Date: January 2, 1912
Creator: Rex, Cleveland A.
Partner: UNT Libraries Government Documents Department

Ax Handle

Description: Patent for an ax handle. The handle is a tubular handle which also includes hingedly connected part fitting into the eye of the ax head. Illustration included.
Date: March 4, 1913
Creator: Burks, William Edward
Partner: UNT Libraries Government Documents Department

Animal-Trap

Description: Patent for an animal trap with a unique construction. It can be used for many animals but is specially made for salamanders or other burrowing type animals.
Date: September 9, 1902
Creator: Hetherington, Sam
Partner: UNT Libraries Government Documents Department

Barrel Swing for Store Counters

Description: Patent for a barrel swing that allows the barrel to swing out from under the counter. Illustration included.
Date: December 21, 1909
Creator: Gimbal, Charles C.
Partner: UNT Libraries Government Documents Department

Antifriction Device for Sucker-Rods.

Description: Patent for a rod sleeve to protect the rod joints from damage or bending. The design also includes rollers to keep the rods centered in the casing to eliminate rubbing.
Date: August 4, 1903
Creator: Black, William L.
Partner: UNT Libraries Government Documents Department

Air-Brake Mechanism.

Description: Patent for "a new and useful air-brake mechanisms in relation to a pressure controller and distributer designed to perform the several independent and joint functions of a triple valve, a pressure-retaining valve, and a pressure relief or reducing valve."
Date: May 29, 1900
Creator: Dillander, John
Partner: UNT Libraries Government Documents Department

Animal-Trap

Description: Patent for a cylinder shaped animal trap for small furry animals.
Date: February 25, 1913
Creator: Fikes, Benjamin M.
Partner: UNT Libraries Government Documents Department

Air-Break Signaling and Releaseing Device.

Description: Patent for an improvement in air-brake release-valve in trains to signal train crews and release the breaks if they become set for any reason, or stuck, while the train is moving, including descriptions of the release valve and illustrations.
Date: November 4, 1902
Creator: Dukesmith, Frank H.
Partner: UNT Libraries Government Documents Department

Advertising-Machine

Description: Patent for an advertising machine for displaying various advertising cards in a motorized machine that displays all the different cards as it goes around in a circle.
Date: April 18, 1911
Creator: Helm, Virgil L.
Partner: UNT Libraries Government Documents Department

Bathing-Suit.

Description: Patent for a new and useful improvement in bathing suits.
Date: March 29, 1898
Creator: Davis, Jesse W. D.
Partner: UNT Libraries Government Documents Department

Animal Trap

Description: Patent for an animal trap. Illustration included.
Date: July 31, 1906
Creator: Crowson, John J.
Partner: UNT Libraries Government Documents Department

Animal Trap

Description: Patent for an animal trap, particularly desgned for rodents and birds, which is able to trap animals without having to be manually reset each time. Illustrations included.
Date: January 19, 1909
Creator: Barron, Nathan J.
Partner: UNT Libraries Government Documents Department

Animal-Trap

Description: Patent for an animal trap. Illustrations included.
Date: September 8, 1908
Creator: Dennis, Decatur D.
Partner: UNT Libraries Government Documents Department

Animal-Trap

Description: Patent for a foot trap for catching animals known for their furs that will prevent the animal from gnawing the trap or his foot off.
Date: May 9, 1911
Creator: Roberson, Elige L.
Partner: UNT Libraries Government Documents Department

Animal-Trap

Description: Patent for an animal trap primarily intended for capturing rodents. Illustrations included.
Date: May 19, 1908
Creator: Pierce, William Z.
Partner: UNT Libraries Government Documents Department

Barrel-Stand.

Description: Patent for improvments to barrel stands and related to the "object in view being to provide a simple, and convenient stand for holding barrels and casks and permitting the same to be readily turned with slight exertion from a vertical to a horizontal position and vice versa" (lines 9-12) including illustrations.
Date: August 27, 1901
Creator: McClary, Rufus E. & Gray, Thomas S.
Partner: UNT Libraries Government Documents Department

Ant Trap

Description: Patent for an ant trap. Illustration included.
Date: December 28, 1909
Creator: Mercer, John W.
Partner: UNT Libraries Government Documents Department

Advertising Device.

Description: Patent for certain new and useful improvements in advertising device, including instructions and illustrations.
Date: August 9, 1898
Creator: Hefley, Jefferson D.
Partner: UNT Libraries Government Documents Department

Axle

Description: Patent for an axle. Illustration included.
Date: January 29, 1907
Creator: Price, George T.
Partner: UNT Libraries Government Documents Department
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