UNT Libraries Government Documents Department - 1,159 Matching Results

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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.
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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.
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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
Item Type: Refine your search to only Patent

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.
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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
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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.
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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
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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.
Item Type: Refine your search to only Patent

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
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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.
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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.
Item Type: Refine your search to only Patent

Cotton-Chopper

Description: Patent for an improved cotton-chopper, which includes a vertical swinging movement, as well as a wheel at its base which, and has a chopper shaft that may be depressed by the feet of the operator so that the chopper can operate even on uneven ground.
Date: March 9, 1915
Creator: Baker, William A.
Item Type: Refine your search to only Patent
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