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Piston

Description: The Patent for an improved piston to be used in connection with the cylinders of air brakes. The improvement involves making the removal and replacement of worn out packing material easier.
Date: July 22, 1913
Creator: King, Herbert G.
Partner: UNT Libraries Government Documents Department

Draft-Equalizer

Description: Patent relating to improvements to draft appliances for tractors. Illustration is included.
Date: September 28, 1920
Creator: Dudley, Thomas J.
Partner: UNT Libraries Government Documents Department

Draft Attatchment For Tractors.

Description: Patent for Draft Attachment For Tractors for the improvement of farming tractors. This invention includes adding machinery to allow interchangeable farming tools for a wide variety of uses.
Date: October 26, 1920
Creator: Gaida, Wale
Partner: UNT Libraries Government Documents Department

[Tractor and Plows on Main and Wall, Midland]

Description: Photograph of a gathering of agricultural machinery in front of the Llano Hotel and the Midland National Bank on the intersection of Main and Wall streets (formerly Abilene and Iowa, respectively). A row of plows is placed at center, where Bert Ramsey places his foot and rests his arm on the rightmost plow. At right is a large Rumley Oil Pull tractor with large wheels and an oversized engine, manned at the wheel by Henry Halff, owner of the tractor. E. J. Mumford stands to the left of the tract… more
Date: 1915~
Partner: Midland Historical Society

[Leaping Tuna Transport Pulled by Tractor]

Description: Photograph of 'Leaping Tuna" a four wheeled transport cart pulled by a U.S. Navy Tractor. Two unidentified men sit in the cart and another man sits on the wheel of the tractor waving. The transport is parked on a dirt road in front of a two-story building.
Date: [1941..1945]
Partner: National Museum of the Pacific War/Admiral Nimitz Foundation

Electric Attachment for Movable Objects.

Description: Patent for an electric device that can be attached to equipment such as plows or tractors which sends an electric current underground where the plow is going that prevents dirt from sticking to the equipment and clogging it when the ground is slightly wet.
Date: May 28, 1907
Creator: Dawkins, John R.
Partner: UNT Libraries Government Documents Department

Cultivator Attachment.

Description: Patent for cultivator attachment that is useful in breaking up the soil at opposite side of the plants and leveling the ground between the rows. It can be adjusted to any desired angle (vertical, horizontal) or level (up and down).
Date: January 6, 1903
Creator: Brewer, John Meed
Partner: UNT Libraries Government Documents Department

Cotton-Harvester

Description: Patent for an improved cotton harvester for the purpose of increased efficiency, with illustrations and explanations.
Date: August 13, 1918
Creator: Stark, Alvin E. & Garrett, Myers A.
Partner: UNT Libraries Government Documents Department

Cultivator

Description: Patent for improving attachment for a cultivator whereby an ordinary cultivator and wherein the cutting blade is effectively held against displacement after the attachment has been applied to a beam.
Date: August 21, 1917
Creator: Griffice, George D.
Partner: UNT Libraries Government Documents Department
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