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Account-Index.

Description: Patent for an account index card holder with “superposed parallel arms” (lines 111-112) that allow portions of the front and reverse side of each card to be visible. The holder and its supports may be used with a system for organizing, tracking, and indexing accounts.
Date: November 4, 1913
Creator: Roach, William Eli.
Partner: UNT Libraries Government Documents Department

Acetylene-Gas Apparatus.

Description: Patent for machines that generate acetylene gas for a "simple and comparatively inexpensive construction, in which the gas is thoroughly washed before entering the service-pipe and in which the water-supply to the generator is controlled by the gas pressure and the carbid kept at all times cooled by surrounding water" (lines 11-17).
Date: December 4, 1900
Creator: McGoldrick, William Hamilton
Partner: UNT Libraries Government Documents Department

Acetylene Gas Torch

Description: Patent for a acetylene gas torch. Illustration included.
Date: March 15, 1904
Creator: Marsh, William H.
Partner: UNT Libraries Government Documents Department

Acetylene Generator

Description: Patent for an acetylene generator. Illustration included.
Date: December 12, 1905
Creator: Sinclair, William
Partner: UNT Libraries Government Documents Department

Adding-Machine

Description: Patent for improvements to adding machines, which is key-operated and includes a vertically disposed shaft and a means to actuate the sliding plate.
Date: January 5, 1915
Creator: Gatewood, William F.
Partner: UNT Libraries Government Documents Department

Adding-Machine

Description: Patent for adding machine that has improvements such as a controllable disk to avoid over or under rotation and simpler means of adding and removing adding disks.
Date: February 16, 1915
Creator: Sweet, William F. & Tideman, S.
Partner: UNT Libraries Government Documents Department

Adjustable Bench Hook.

Description: Patent for a new and improved bench hook. This design "consists in a bench-hook constructed with a plate carrying a sliding bar, to which is adjustably secured a hook. The sliding bar and hook are locked in place by a clamp and cam attached to the plate, and the plate and its attachments are locked to the bench-front by a stationary lug attached to the plate, and a moveable lug attached to a lever pivoted to the said plate and locked in place by a cam, so that the said hook can be readily adjusted upward, downward, forward, and backward" (lines 20-30).
Date: July 22, 1884
Creator: Cooper, Harry
Partner: UNT Libraries Government Documents Department

Adjustable Bicycle-Rest.

Description: Patent for a new and useful adjustable bicycle-rest, including instructions and illustrations.
Date: January 23, 1900
Creator: Wise, Harry
Partner: UNT Libraries Government Documents Department

Advertising Street Car Sign

Description: Patent for an advertisement sign located on the top of street cars. Illustration included.
Date: February 11, 1908
Creator: King, Alphonse
Partner: UNT Libraries Government Documents Department

Aerodrome

Description: Patent for an aerodrome which is a heavier than air flying machine powered by motorized propellers
Date: August 24, 1909
Creator: Sinclair, William
Partner: UNT Libraries Government Documents Department

Aeroplane

Description: Patent for Aeroplane. This flying machine will automatically return to normal horizontal position if tilted.
Date: September 17, 1909
Creator: MacManus, Agustus, F.
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

Aeroplane

Description: Patent for an aeroplane. Illustrations included.
Date: February 11, 1913
Creator: Goodrich, Luman L., Jr.
Partner: UNT Libraries Government Documents Department

Aeroplane

Description: Patent for an aeroplane which has its equilibrium maintained by the operator through levers that bring the plane up or down.
Date: December 6, 1910
Creator: McManus, Augustus F. W.
Partner: UNT Libraries Government Documents Department

Air-Brake

Description: Patent for an air brake with instructions and illustrations.
Date: November 24, 1914
Creator: Wolf, Gustav B.
Partner: UNT Libraries Government Documents Department

Air-Compressing Apparatus.

Description: Patent for a new air compressing apparatus which employs two kinds of tanks called high pressure containers and low pressure containers charged by means of an air compressing engine.
Date: March 16, 1915
Creator: Gebhardt, William Charles
Partner: UNT Libraries Government Documents Department

Air Compressor for Deep Well Pumps.

Description: Patent for a new and improved air-compressor. This design "relates to improvements in air-compressing mechanism for the purpose of pumping for forcing from deep wells and performing similar work; and it consists in the construction and arrangement of a larger and smaller air-cylinder, and the combination therewith of mechanism to force the air from the larger into the smaller cylinder to increase the air-pressure in the latter" (lines 22-30).
Date: August 2, 1887
Creator: Adams, John R.
Partner: UNT Libraries Government Documents Department

Air-Lift Pump

Description: Patent for an air lift pump. Illustrations included.
Date: July 30, 1912
Creator: Holmgreen, Julius H. & Underwood, William H.
Partner: UNT Libraries Government Documents Department

Air Suction and Force Pump

Description: Patent for improvement in suction and force pumps, a pneumatic lift-and-force pump for raising water from wells.
Date: October 7, 1913
Creator: De Hymel, Franklin O.
Partner: UNT Libraries Government Documents Department

Air-Supplying Device For Diving Purposes.

Description: Patent for a new and useful air supplying device for diving purposes, including instructions and illustrations.
Date: December 5, 1899
Creator: Hensley, Frank A.
Partner: UNT Libraries Government Documents Department

Amusement Device

Description: Patent for an amusement device. This invention is designed as an apparatus for a swing, a trapeze, a horizontal bar, and seesaw. Illustration included.
Date: December 18, 1906
Creator: Haye, August, of San Antonio, Texas
Partner: UNT Libraries Government Documents Department

Animal-Trap.

Description: Patent for a live animal trap that uses a trigger and allows for live bait. Wire fabric is used to prevent animals from digging and escaping.
Date: March 3, 1914
Creator: Herring, Henry H.
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 new and useful animal trap, including instructions and illustrations.
Date: December 5, 1899
Creator: Buckersberg, Simon
Partner: UNT Libraries Government Documents Department