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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. & Kriel, Otto J.
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Partner: UNT Libraries Government Documents Department

Silo

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

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.
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Partner: UNT Libraries Government Documents Department

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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Partner: UNT Libraries Government Documents Department

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
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Partner: UNT Libraries Government Documents Department

Incubator

Description: Patent for an incubator designed to maintain temperature automatically.
Date: September 27, 1921
Creator: Kovar, Joe
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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