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Antifriction-Bearing.

Description: Patent for a new and useful improvements in anti-friction bearings.
Date: April 5, 1898
Creator: Hobron, Charles B.
Partner: UNT Libraries Government Documents Department

Aeroplane

Description: Patent for an aeroplane. This invention does not use any mechanism to maintain the planes equilibrium. Illustration included.
Date: November 5, 1912
Creator: Goebel, Alois
Partner: UNT Libraries Government Documents Department

Adjustable Trace Connector

Description: Patent for an adjustable trace connector. Illustration included.
Date: January 5, 1909
Creator: Erwin, Agustin Reese
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

Antileak Composition.

Description: Patent for improvements in antileak composition in order to prevent leaks in liquid holding containers like radiators, boilers, etc.
Date: July 5, 1921
Creator: Shrum, Will N.
Partner: UNT Libraries Government Documents Department

Advertising-Sign.

Description: Patent for an advertisement sign with a translucent display band that illuminates different sections of letters, numbers, or figures, in various colors, giving the appearance of animation.
Date: August 5, 1919
Creator: Craig, Richard M.
Partner: UNT Libraries Government Documents Department

Cattle-Guard.

Description: Patent for a railway cattle-guard that is simple, inexpensive, and efficient. It prevents the cattle "from traversing a railway-track in order to pass form one field or inclosure to another" (line 12-14). It has spurred rollers, and has a unique way of mounting rollers or rotary ties, in that they do not block the track.
Date: January 5, 1897
Creator: Nevill, William Birt
Partner: UNT Libraries Government Documents Department

Compressed-Air Engine

Description: Patent for a compressed air engine. Illustrations included.
Date: September 5, 1911
Creator: Murray, Dick H.
Partner: UNT Libraries Government Documents Department

Aeroplane

Description: Patent for an aeroplane that will maintain its balance in the air automatically
Date: December 5, 1911
Creator: McManus, Augustus F. W.
Partner: UNT Libraries Government Documents Department

Advertising Device.

Description: Patent for an advertising machine that is motor-operated and will display a succession of slides that can be shown during the day or at night. It includes a light to help show slides to the public, a shutter that automatically and intermittently displays slides, a lens for projecting slides on a distant screen, and a master slide to be shown with each slide. The patent includes illustrations.
Date: August 5, 1913
Creator: Bernard, Oscar C.
Partner: UNT Libraries Government Documents Department

Ax-Sharpener

Description: Patent for an ax sharpener that can be attached to and removed from an ax head.
Date: January 5, 1915
Creator: Wilson, Friend A.
Partner: UNT Libraries Government Documents Department

Antifreezing Outlet-Valve for Tanks.

Description: Patent for a new and improved "valve-operating mechanism which cannot be rendered inoperative by ice forming in the tank, and also whereby the valve itself cannot become frozen" (lines 26-30) including illustrations.
Date: May 5, 1914
Creator: Whipp, John W.
Partner: UNT Libraries Government Documents Department

Adjustable Window-Shade

Description: Patent for an adjustable window-shade that is more useful and can be "raised and lowered in its entirety" (lines 10-11) including instructions and illustration.
Date: December 5, 1916
Creator: Hayes, George Daniel
Partner: UNT Libraries Government Documents Department

Bale-Tie Buckle

Description: Patent for a bale-tie buckle which can be fastened quickly. The bale-tie buckle "can be economically manufactured," is "capable of resisting enormous pressure," and "can be quickly and easily placed on the bands or ties."
Date: January 5, 1915
Creator: Horsley, Robert L.
Partner: UNT Libraries Government Documents Department
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