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Safety-Lock For Doors and the Like.

Description: Patent for improvements in door safety locks. Adding this simple and easy to manufacture lock allows a door to be locked from the inside, making the door inaccessible to anyone on the outside.
Date: June 21, 1921
Creator: Kless, Herman L.
Partner: UNT Libraries Government Documents Department

Improvement in Carriage-Axles.

Description: Patent for improvements to carriage axles which include the addition of a sleeve, bearing, and linch-pin device.
Date: June 13, 1871
Creator: Wagner, Ernest Friedrich
Partner: UNT Libraries Government Documents Department

Flexible Stay-Bolt

Description: Patent for a stay bolt for steam boilers which is flexible on both ends.
Date: June 11, 1907
Creator: Mooney, Thomas H.
Partner: UNT Libraries Government Documents Department

Coffee and Teapot.

Description: Patent for an improved coffee and teapot, in which the coffee or tea are boiled into the water and then strained out. Included instructions and illustrations.
Date: June 15, 1869
Creator: Heiss, Gregor & Schmidt, Martin
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

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

Fuse-Plug.

Description: Patent for a fuse plug for prolonged usage by allowing a new wire to be substituted to replace melted wire. This fuse plug has a second wire that can be triggered into circuit.
Date: June 11, 1918
Creator: Dugan, Joseph A.
Partner: UNT Libraries Government Documents Department

Improved Anchor for Animals.

Description: Patent for improvement in animals’ anchor in which it allow the animals to graze without being twisted or wound up the rope by using the combination of a swiveled loop and a pivoted loop with each other, and a pin. “This pin is made with four wings, or radial longitudinal flanges, tapering to a point at its lower end and is readily forced into the ground, and easily drawn out, but will resist a very strong side-draught.” (Lines23-27) Illustration is included.
Date: June 8, 1869
Creator: Raiford, P. H.
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

Locking Device for Automobiles

Description: Patent for automobiles to lock the steering shaft so that it is un-driveable and cannot be stolen and driven away without the key.
Date: June 6, 1916
Creator: Kavanaugh, Nelson J.
Partner: UNT Libraries Government Documents Department

Rotary Cutter for Roller Drills

Description: Patent for an improvement in rotary cutters for roller-drills. Improvement includes a secure locking mechanism upon bushing as it is related to author's prior patent for drill cutters.
Date: June 16, 1919
Creator: Godbold, Louis A.
Partner: UNT Libraries Government Documents Department

Jack-Block.

Description: Patent for improvement in jack boxes used for holding the wheel of a car.
Date: June 22, 1915
Creator: Guild, George
Partner: UNT Libraries Government Documents Department

Bridge Construction.

Description: Patent for '' bridge improvements, especially for placement over gutters, ditches, and alike ''
Date: June 21, 1921
Creator: McKenzie, Philip A.
Partner: UNT Libraries Government Documents Department

Valve for Pumps.

Description: Patent of a valve used on deep well pumps; that my contain sand, shale or sediment
Date: June 7, 1921
Creator: Shevlin, Miles
Partner: UNT Libraries Government Documents Department

Windmill Motor

Description: Patent for windmill motor. Illustration included.
Date: June 15, 1909
Creator: La Bauve, Valcoure J.
Partner: UNT Libraries Government Documents Department

Lock

Description: Patent for a lock. This lock is designed for a coin fed lock that releases the key for the customer. Illustration included.
Date: June 2, 1908
Creator: Johnson, Randall
Partner: UNT Libraries Government Documents Department

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

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

Railroad-Crossing Shock-Absorber.

Description: Patent for railroad crossings to protect the rails from contact with the vehicle wheels and to absorb the jar and vibration from passing vehicles over the crossing.
Date: June 15, 1920
Creator: Hargrave, Russell R.
Partner: UNT Libraries Government Documents Department

Roadway.

Description: Patent for an improved roadway that utilizes concrete tracks and asphalt or bitumen filler to create a grooved, hard, and durable surface, with illustrations.
Date: June 28, 1921
Creator: Moore, Stuart B.
Partner: UNT Libraries Government Documents Department

Drill.

Description: Patent for
Date: June 30, 1914
Creator: Weathersby, Fred Richard
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

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

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
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