UNT Libraries Government Documents Department - 233 Matching Results

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Railroad-Crossing Signal

Description: Patent for signaling devices designed for use along railroads and grade crossings and meant to be automatically operated upon the approach of a train by giving a visible or audible signal at the crossing which will warn travelers of the approach of the train and calcuated to avoid the occurrence of accidents. The signal device includes a track associated train operated circuit closing device for energizing a bell, flashing light, or signal arm or any other equivalence or suitable signal device … more
Date: October 17, 1922
Creator: Hamilton, Morgan Smith & Brady, Charles Pettus

Incubator

Description: Patent for an incubator designed to maintain temperature automatically.
Date: September 27, 1921
Creator: Kovar, Joe

Gearing.

Description: Patent for a speed transmission device that simply and efficiently changes the gears in an automobile especially at fluctuating speeds.
Date: September 13, 1921
Creator: Anderson, Bert

Burglar-Alarm

Description: Patent for improvements in burglar alarms, with horns and sirens.
Date: March 8, 1921
Creator: Sefcik, Francis

Silo

Description: Patent for a silo that is constructed in sections, making transport more efficient.
Date: June 15, 1920
Creator: Comer, John H.

Spring Wheel.

Description: Patent for new and useful improvements in spring wheels sufficient to enable it to successfully stand up under the shocks and jars to which such wheels are ordinarily subjected, while at the same time having all the wearing qualities and resiliency of the pneumatic tire.
Date: May 20, 1920
Creator: Atkinson, George C.

Cotton-Chopper

Description: Patent for treating soil for agricultural purposes. This invention destroys the ridges used for planting and growing cotton and also cultivating the soil in the vicinity of the ridges.
Date: May 11, 1920
Creator: Kriel, John J.

Ensilage-Packer for Silos.

Description: Patent for a device in "which the center and edges" of a silo "will be packed with equal firmness and solidity" (lines 14-16) of materials, including an illustration and description of the device.
Date: March 23, 1920
Creator: Comer, John H.

Wire-Straightening Tool.

Description: Patent for a wire straightening tool, with illustrations, that relies on a series of levers and cams to apply pressure to the wire as it is pulled through. The patent notes that "the wires can be straightened quickly and with facility, thereby permitting the using of all twisted and bent wire which has heretofore gone to waste and resulting in considerable saving of metal" (page 2, lines 14-18).
Date: January 27, 1920
Creator: Cervenka, Frank L.

Shoe

Description: Patent for improving the design and comfort of footwear that uses a fastening strap across the top to allow the user to quickly put on and take off the shoe. The design will also aid in preventing and correcting foot ailments that can occur when the boot or shoe is used in situations that typical cause problems such as long hikes, marches, or standing.
Date: January 20, 1920
Creator: Mann, William L.

Work Clamp.

Description: Patent for an improved work clamp. The inventor claimed that the clamp was meant to be universal, allowing for several clamped pieces of material to be secured simultaneously for welding or other joining methods. The tool was meant to facilitate complex construction in a variety of machinery repair facilities and markets.
Date: November 25, 1919
Creator: Treuthardt, Arnold Charles

Tool-Heater

Description: Patent for tool heaters "adapted to heat a soldering iron by gas" (lines 9-10) to increase the heat applied to the tool, including illustrations.
Date: October 21, 1919
Creator: Juergens, Ernest

Automobile Attachment

Description: Patent for an automobile attachment designed to utilize the power produced by motorized engines for various farming implements.
Date: September 23, 1919
Creator: Klima, J.

Fly Catcher

Description: Patent for the fly catcher. This invention comprehends the provision of a fly trap embodying a chute through which livestock may pass and have flies that circulate around them being scared or brushed off of them and causing them to enter a trap. Illustrations are provided.
Date: March 12, 1918
Creator: Girvin, Fitzhugh B. & Brady, Charles P.

Waterproof Car-Door.

Description: Patent for a freight car door of "strong, durable, and inexpensive construction which will be water and air tight, and which will be practically indestructible in case of a wreck" (lines 17-20) including illustrations.
Date: January 1, 1918
Creator: Atkinson, George C.

Combined Rule and Square.

Description: Patent for new and useful Improvements in Combined Rules and Squares which makes it "possible to form a rigid straight rule or one or more rigid squares" (lines 24-25), including illustration and instructions.
Date: August 21, 1917
Creator: Grossman, Edwin

Watering-Trough.

Description: Patent for a valve that controls the flow of drinking water from a reservoir or tank into a trough. It can be operated by domestic animals and automatically shuts off when they are finished drinking.
Date: August 21, 1917
Creator: Atkinson, George C.

Metallic Roof.

Description: Patent for new and useful improvements to the design of portable metallic roofs, including illustrations.
Date: May 22, 1917
Creator: Draper, David F.

Corn Popper

Description: Patent for corn-popper improvement by connecting to the cover of the popper a rotating agitating blade which would prevent the corn within from burning.
Date: April 10, 1917
Creator: Zschiesche, William H. M.

Land Marker

Description: Patent for land markers that can be used as guides such as for planting.
Date: December 19, 1916
Creator: Bland, Royal H.

Engine

Description: Patent for internal combustion engine.
Date: November 7, 1916
Creator: Box, Walter
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