8 Matching Results

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Pipe-Wrench.

Description: Patent for improvements to pipe wrenches to a more simple design.
Date: February 16, 1915
Creator: Lewis, Guy V.
Partner: UNT Libraries Government Documents Department

Valve for Engines.

Description: Patent for certain new and useful improvements in valves for steam engines, including instructions and illustrations.
Date: November 8, 1898
Creator: Allen, Walter J.
Partner: UNT Libraries Government Documents Department

Oxygen-Generator

Description: Patent for an oxygen generator that refills as it is emptied.
Date: February 7, 1911
Creator: Bradley, Richard Clinton
Partner: UNT Libraries Government Documents Department

Cotton Cleaner, Feeder, and Separator Elevator

Description: Patent for a machine designed to take and clean cotton from a cotton supply, and then feed it directly into a cotton gin. Illustrations included.
Date: May 19, 1908
Creator: Carmouche, Emile A.
Partner: UNT Libraries Government Documents Department

Rail-Bond.

Description: Patent for a rail bond that allows an electric current to travel through the rails.
Date: March 14, 1911
Creator: Humason, Granville A. & Odell, Edward F.
Partner: UNT Libraries Government Documents Department

Conduit Electric Railway.

Description: Patent for a surface trolley for electric railways that operates "upon the surface of the pavement or ground between the tracks of the road, for connecting the car with the motor power, in place of the trolley and over head wires now suspended upon the unsightly poles in the center or at the sides of the street, which are found to be very objectionable on account of their obstructing the passageway in the streets and upon the side walks, and the wires preventing the free movement of fire companies in extending their ladders in gaining access to buildings, and also because of the great danger attending persons and animals moving about in the street, on account of the charged or live wires frequently being thrown down upon the ground, and coming in contact with and destroying the life of persons, and also on account of the frequent fatal accidents to persons having charge of the repair of the wires and other apparatus in connection with them, often coming in contact with live wires while elevated on the poles and engaged in repairing them" (lines 16-38).
Date: April 11, 1893
Creator: Voe, William R. de
Partner: UNT Libraries Government Documents Department

Improvement in Plaiting-Irons.

Description: Patent for an improvement to plaiting-irons: "a plaiting-iron composed of a peculiarly-constructed iron or metal plate used in connection with a correspondingly-constructed board" (lines 23-25), with illustrations.
Date: August 14, 1877
Creator: Gingras, Joseph E.
Partner: UNT Libraries Government Documents Department

Conduit Electric Railway.

Description: Patent for an underground conduit electric railway meant to propel cars. The conduit can be drained and kept dry, and a trolley attachment protects the conduit from dirt and water as well.
Date: December 5, 1893
Creator: de Voe, William R.
Partner: UNT Libraries Government Documents Department