UNT Libraries Government Documents Department - 123 Matching Results

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Wrench.

Description: Patent for a wrench with a head having a pair of rigid jaws to engage the object. One unique use of this wrench is that it can tighten any threaded joint beyond the degree of tightness that can be obtained by pulling the handle of an ordinary wrench in the usual manner.
Date: July 19, 1921
Creator: Duda, Oswald
Item Type: Refine your search to only Patent

Vehicle

Description: Patent for a vehicle that can carry heavy loads and can turn around in a small space and can turn easily on a crooked road.
Date: July 1, 1919
Creator: Menning, Otto H.
Item Type: Refine your search to only Patent

Jack.

Description: Patent for improvements in jacks used for shipbuilding. The device described is designed to aid in the processes of fastening siding to the ribs of a ship hull by first forcing the boards that form the siding close together so that they can then be secured to the hull's ribs. The improvements this jack provides is the necessary force required to closely align the boards easily and quickly before they are nailed in place. This mechanical device is lightweight, efficient and easy to repair. It ca… more
Date: July 22, 1919
Creator: Singleton, James D.
Item Type: Refine your search to only Patent

Valve-Grinder.

Description: Patent for "a tool adapted to rotate valves of an internal combustion engine for grinding the same on their seats." (lines 9-11) It is adapted to connect to the cylinder "of the engine in such a manner as to permit accurate and quick operation of the valve for grinding it, and whereby the handle of the tool may be set at a convenient angle for manipulation, and may be lengthened or shortened according to requirements." (lines 15-21)
Date: July 13, 1920
Creator: Ralston, John
Item Type: Refine your search to only Patent

Well-Screen.

Description: Patent for a "well screen in which a maximum screening area is obtained without weakening the frame" (lines 11-13) including instructions and illustrations.
Date: July 23, 1918
Creator: Layne, Mahlon E.
Item Type: Refine your search to only Patent

Machine-Gun.

Description: Patent for a machine gun, meant to have relatively few parts, that includes a belt to carry a large amount of cartridges. The machine gun "provides a structure wherein the cartridges are positively and consecutively fed to the explosion chamber" (lines 11-14).
Date: July 16, 1918
Creator: McManus, Luis M. & Warner, James Harold
Item Type: Refine your search to only Patent

Tractor

Description: Patent for a tractor "of the caterpillar type, having a caterpillar on each side, said caterpillars being independently driven either forwardly or reversely" (lines 11-14).
Date: July 22, 1919
Creator: Fisher, Guy B.
Item Type: Refine your search to only Patent

Pump.

Description: Patent for a pump for deep wells with a "specially constructed piston capable of a powerful working stroke and which will secure at all times a full volume of liquid at each stroke of the pumping rod." (line 25) including instructions and illustrations.
Date: July 6, 1920
Creator: Humason, Granville Allison
Item Type: Refine your search to only Patent

Protecting-Casing for Electrical Conductors

Description: Patent for "new and useful Improvements in Protecting-Cases for Electrical Conductors" (lines 5-7). The object of the invention is to provide a device... for surrounding the commutator of an internal combustion motor and protecting the terminals thereof and the electrical conductors connected to said terminals" (lines 12-17).
Date: July 16, 1918
Creator: Rooke, Henry L., Jr.
Item Type: Refine your search to only Patent

Power-Transmitting Mechanism.

Description: Patent for improvements in a power transmitting mechanism that is "designed for the purpose of connecting a driving or power shaft with a driven shaft, whereby the driven shaft is continuously rotated from the driving shaft." (lines 11-14)
Date: July 13, 1920
Creator: Smith, Robert W. J.
Item Type: Refine your search to only Patent

Foldable Stool

Description: Patent for a foldable stool "primarily designed for the purpose of attachment to a sewing machine, and which may be collapsed into a compact form and swung into position underneath the top of the machine and out of the way, when not in use" (lines 12-17). It is intended to be used with a desk, table, or other similar furniture.
Date: July 22, 1919
Creator: Hagner, Frederick Hayes
Item Type: Refine your search to only Patent

Means for Drying Briquets

Description: Patent for drying briquets. Briquets are placed on a track, which is then rotated by chains as it dries, before falling into a stack in a chamber. This allows for faster, more even drying of the briquets before use.
Date: July 20, 1917
Creator: Baker, Burke
Item Type: Refine your search to only Patent
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