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Trap.

Description: Patent for a small animal trap that prevents injury to the animal. When the animals step on the pedal inside the enclosure, a door is automatically dropped. The animal is trapped inside the enclosure.
Date: June 27, 1922
Creator: Dinkins, Earl T.
Partner: UNT Libraries Government Documents Department

Improvement in Apparatus for the Manufacture of Gas from Oils.

Description: Patent for "machines for the manufacture of gas from oils, benzine, gasoline, &c.; and it consists in providing the tank or cistern with a retort constructed with an outer cylinder surrounding one or more cylinders or tubes, which inner cylinder is provided with perforated plates at the top and bottom thereof, and the space between said plates filled with sponge or other porous material, while the space or chamber between the inner and outer shell of the retort serves as a mixing-chamber for th… more
Date: June 18, 1872
Creator: Gearing, Charles & Gearing, Franklin A. G.
Partner: UNT Libraries Government Documents Department

Improvement in Circular-Saw Guides.

Description: Patent for a new and improved arrangement of guides for circular saws. Includes illustrations.
Date: June 9, 1868
Creator: Milner, Thomas
Partner: UNT Libraries Government Documents Department

Improvement in Apparatus for Destroying Worms on Cotton-Plants.

Description: Patent for improvement in insect destroyer by “placing a gas-generator on a wagon, in its lower chamber, a fire box is placed for creating sulphurous gas. A bellows attached to its lower end to regulate sufficient air in forming the sulphurous gas.” (Lines 15-18) Illustration is included.
Date: June 15, 1869
Creator: Perl, M.
Partner: UNT Libraries Government Documents Department

Hydrocarbon-Burner

Description: Patent for a hydrocarbon burner that releases the fuel oil by means of a spray, for use in furnaces of stationary boilers. It also allows easy adjustment to the fuel nozzle on the spray.
Date: June 22, 1915
Creator: Smith, Algernon V.
Partner: UNT Libraries Government Documents Department

Steering Device for Vehicles.

Description: Patent for certain new and useful improvements in steering devices for vehicles, including instructions and illustrations.
Date: June 28, 1898
Creator: Fisher, Charles Nicholas
Partner: UNT Libraries Government Documents Department

Washing Machine

Description: Patent for a washing machine. This invention has a basket for holding clothes contained within a tub with hot soapy water. Illustration included.
Date: June 9, 1908
Creator: Hamilton, Walter Scott & Williams, James Rozier
Partner: UNT Libraries Government Documents Department

Steam-Trap

Description: Patent for " a improved steam-separating trap or steam-eliminator for obtaining a supply of dry steam to an engine or like machinery" (lines 7-10 including instructions and illustrations.
Date: June 5, 1900
Creator: Guild, George
Partner: UNT Libraries Government Documents Department

Metal-Frame Screen

Description: Patent for a window screen frame made of metal.
Date: June 7, 1910
Creator: Williams, John B.
Partner: UNT Libraries Government Documents Department

Spark-Plug

Description: Patent for a spark plug that has a cooling method for keeping the porcelain section from cracking and a better way of keeping it clean.
Date: June 27, 1911
Creator: Harpst, Fred E.
Partner: UNT Libraries Government Documents Department

Oil-Can

Description: Patent for an oil can that prevents flames from going beyond the spout of the can and blocks gases from coming out of the can while still allowing the oil to be easily poured out.
Date: June 18, 1907
Creator: Harmon, William Ellis & Goodpasture, Thomas Boisarth
Partner: UNT Libraries Government Documents Department

Motor.

Description: Patent for improvements in motors designed for motor-vehicle operation. Cheaper manufacture and less expensive fuel are included as claimed improvements.
Date: June 5, 1916
Creator: Edwards, Charles R.
Partner: UNT Libraries Government Documents Department

Telegraph-Repeater

Description: Patent for a telegraph repeater. This invention improves repeaters by eliminating lag by simplifying the apparatus which increases capacity and clarity in transmission by maintaining a larger current strength.
Date: June 24, 1919
Creator: McKibben, Charles W.
Partner: UNT Libraries Government Documents Department

Washer for Well Screens.

Description: Patent for improvements in a washer for well screens relating to oil wells, using a fluid conducting tube, to be let down in a well.
Date: June 3, 1919
Creator: Mack, James O.
Partner: UNT Libraries Government Documents Department

Packer for Wells

Description: Patent for a well packer, specifically for oil wells, for the purpose of facilitating the formation of watertight joints between outer and inner pipes.
Date: June 28, 1921
Creator: Fondren, Walter William
Partner: UNT Libraries Government Documents Department

Nut Lock.

Description: Patent for a new and improved nut lock. This design "is to provide a spring-washer of great stiffness and strength, which, when applied to a bolt beneath a nut, serves to prevent the latter from turning, and also acts to firmly hold the parts of a rail-joint after there has been some wear thereof, thus keeping the bolts from becoming loose and rattling from such wear" (lines 13-20).
Date: June 10, 1884
Creator: Campbell, Eli F.; Noble, Laroy C. & Howe, Milton G.
Partner: UNT Libraries Government Documents Department

Notching Attachment for Wire-Winding Machines

Description: Patent for a notching attachment for wire winding machines used for well screens. Illustrations included.
Date: June 7, 1910
Creator: Stancliff, George W.
Partner: UNT Libraries Government Documents Department

Oil Can

Description: Patent for an oil can. This design is a non-explosive air vented for pouring can. Illustration included.
Date: June 18, 1907
Creator: Demory, Alexander F. & Suhm, Carl J.
Partner: UNT Libraries Government Documents Department

Mop

Description: Patent for "a simple and durable construction of mop in which the fibre holding element consists of strands of twisted wire" (lines 9-11) designed such that the mop maintains its shape with or without the handle, including illustrations.
Date: June 20, 1922
Creator: Welch, James. S.
Partner: UNT Libraries Government Documents Department

Plow.

Description: Patent for a plow with a convex moldboard and a landside, or shoe, which in combination acts as a turning plow and subsoiler.
Date: June 12, 1883
Creator: Kennedy, George Finlay
Partner: UNT Libraries Government Documents Department

Penholder.

Description: Patent for a simplified construction of a pen holder which is inexpensive to manufacture. It detachably engages the pen point, prevents rusting and sticking. Releases pen point without user needing to grip, therefore avoiding sullying fingers.
Date: June 22, 1920
Creator: Baldwin, Charles E.
Partner: UNT Libraries Government Documents Department

Rotary-Disk Boring-Drill.

Description: Patent for improvements to rotary disk boring drills, including a "novel means for securely locking in the head the spindles on which the cutters are rotatably mounted."
Date: June 15, 1915
Creator: Hughes, Howard R.
Partner: UNT Libraries Government Documents Department

Rail Fastening

Description: Patent for rail fastening. This invention is designed to fasten railroad rails and consists spikes, bolts, and a flange. Illustration included.
Date: June 15, 1909
Creator: Percival, Herbert E. & Key, Brewer W.
Partner: UNT Libraries Government Documents Department

Railway-Crossing Signal

Description: Patent for a railway crossing signal that provides a visible signal, an alarm, and a whistle.
Date: June 22, 1909
Creator: Weisenborn, George P. A.
Partner: UNT Libraries Government Documents Department
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