UNT Libraries Government Documents Department - 64 Matching Results

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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
Item Type: Refine your search to only Patent

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
Item Type: Refine your search to only Patent

Car Coupling.

Description: Patent for a new and improved coupling for railroad cars. This design consists in "[a] car-coupling link having a slotted spring-head adapted to hold the link in a draw-head by frictional contact therewith, and arranged and adapted to permit a coupling-pin to pass through the slots in the said link and its spring-head" (lines 48-53).
Date: February 4, 1890
Creator: Thompson, James Alfred M.
Item Type: Refine your search to only Patent

Clutch.

Description: Patent for "the principal object of this invention to provide a compact and efficient friction clutch for transmitting power from a single driving member to a plurality of individual driven mechanisms" (lines 11-15), including illustrations.
Date: February 4, 1919
Creator: Taft, John A.
Item Type: Refine your search to only Patent

Compressor for Ice Machines.

Description: Patent for a new and improved ice-machine compressor. This design consists in "an ammonia-compressor, the piston-rod having transverse opening in combination with the valve, stem having slot and shoulder, key held therein by a wedge, and the spring and washer" (lines 90-94).
Date: October 4, 1887
Creator: Schuehle, Jacob
Item Type: Refine your search to only Patent

Filter.

Description: Patent for an improvement in filters to remove impurities from gasoline and oil and to reuse the gasoline and oil. Includes illustrations.
Date: February 4, 1919
Creator: Northrup, Early
Item Type: Refine your search to only Patent

Gas-Compressing Pump.

Description: Patent for a gas-compressing pump used in refrigeration and ice making. "The object of [the] invention is to reduce the height of a vertical machine, to facilitate access to the parts and relieve the foundation of strains; to reduce to a minimum the angularity of the connecting rod during the latter part of the stroke, and to improve various details of construction" (lines 19-25).
Date: December 4, 1894
Creator: Farnsworth, Thomas
Item Type: Refine your search to only Patent

Gasoline and Oil Renovator

Description: Patent for a device that can take the impurities from gasoline and oil, thus making them reusable. Development and use are within text; includes illustrations to demonstrate the object of the patent.
Date: December 4, 1917
Creator: Caen, George
Item Type: Refine your search to only Patent

Horse-Detaching Device.

Description: Patent for a horse-detaching device that attaches to the forward axle of a vehicle. The invention will not affect the seating capacity of the vehicle, and can be used to release the thills of the vehicle quickly if the driver loses control of the horse. The device can be used to guide the vehicle after the horse is released.
Date: February 4, 1896
Creator: Friedlander, Joseph
Item Type: Refine your search to only Patent

Key.

Description: Patent for a key, which can be produced in quantity but without any of them being able to open the same door.
Date: February 4, 1908
Creator: Katzenberger, Oscar
Item Type: Refine your search to only Patent
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