UNT Libraries Government Documents Department - 704 Matching Results

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Carbureter.

Description: Patent for a new and improved carburetor. This design calls for "the apparatus [to be] submerged in water for the purpose of equalizing the temperature of the carbureting-liquid, and thereby imparting a more uniform illuminating quality to the gas; also obviating the danger of explosion from access of flame to the exterior of the apparatus" (para. 2).
Date: July 18, 1876
Creator: Pollard, James M. & Barton, Wallace R.
Item Type: Refine your search to only Patent

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.
Item Type: Refine your search to only Patent

Car-Coupling.

Description: Patent for an invention for train cars which "relates to car couplings, and especially to that class of the same which effect an automatic coupling by means of a gravity-hook," (lines 12-15) including instructions and illustrations.
Date: May 13, 1884
Creator: Washburn, Andrew Lynch & Journeay, Abram L.
Item Type: Refine your search to only Patent

Plow.

Description: Patent for improvements in reversible plows: "The object of the present invention is to simplify and improve the construction of reversible plows and enable them to be adjusted to any desired depth" (lines 9-12).
Date: August 18, 1891
Creator: McKay, Robert B.
Item Type: Refine your search to only Patent

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 compan… more
Date: April 11, 1893
Creator: Voe, William R. de
Item Type: Refine your search to only Patent

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.
Item Type: Refine your search to only Patent

Method of and Apparatus for Treating Mineral Pitch.

Description: Patent for an "improved method of and apparatus for treating mineral pitch and similar material to readily separate the asphalt and asphalt-oils from sand, bituminous rock, and other impurities contained in the mined material and removing the sand and impurities" (lines 12-17). The method circulates the material in hot water to separate the asphalt and asphalt-oils from the sand and impurities. The asphalt and oil rise to the top of the water and the impurities sink.
Date: November 5, 1895
Creator: Sellers, Harvey Lee; Conyngton, Hugh Ronald & Conyngton, Thomas
Item Type: Refine your search to only Patent

Combination-Plow.

Description: Patent for a combination-plow that "may be combined with facility to form a variety of plows designed for work of different kinds, the present invention being an improvement upon that shown and described in Patent No. 492,462, granted to [the inventor] February 28, 1893" (lines 10-15).
Date: July 14, 1896
Creator: Dean, John Rowe
Item Type: Refine your search to only Patent

Railway-Ticket, &c.

Description: Patent "to furnish for railway-companies a form of excursion-ticket whose return portion or stop-over portion, as the case may be, is not capable of successful use by scalpers" (lines 11-15).
Date: July 9, 1901
Creator: Smith, Lowndes G.
Item Type: Refine your search to only Patent

Atlanta Quadrangle

Description: Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:62500
Date: 1910
Creator: Geological Survey (U.S.)
Item Type: Refine your search to only Map
Location: 33.12 -94.12
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