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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.
Item Type: Refine your search to only Patent
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
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

[Tractor in a field]

Description: Photograph of of a tractor in a field. A belt runs from the tractor to equipment outside of the image. A man stands by the tractor and two men are at work in the background.
Date: January 30, 1912
Item Type: Refine your search to only Photograph
Partner: Panhandle-Plains Historical Museum

Attachment for Tractors.

Description: Patent for attachments in tractors. "This invention relates to tractors and has for its object the provision of means where by when the front axle and wheels of the tractor rise caused by rearing of the tractor, the clutch will be automatically disconnected and remain so until the front wheels of the tractor descend again into engagement with the ground. An important and more specific object is the provision in a tractor of a front axle formed n sections pivotally connected, one section being c… more
Date: August 30, 1921
Creator: Cholick, Joseph John
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Tractor.

Description: Patent for improvements to a previous patent application for a tractor (Serial No. 399599, filed 1920-07-28). The improvements include rearrangements of parts for the driving wheels from the front to the rear and the rearrangement of the transmission housing.
Date: January 10, 1922
Creator: Lewis, Otto Leroy
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Stalk-Cutter Attachment.

Description: Patent for a planter attachment. It allows quick attachment of a stalk cutter that would let a planter serve two purposes.
Date: February 7, 1922
Creator: Haynes, Jack M.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Process and Apparatus for the Utilization of Heat in Oil-Engines.

Description: Patent for an invention that improves the utilization of waste or surplus heat of internal combustion engines, specifically oil-burning engines of the Diesel type. This invention will assist diesel engines to run satisfactorily on lower or heavier-grade engine oils. This assists in the efficiency and production of Diesel engines.
Date: June 28, 1921
Creator: Lucke, Herbert R.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

[Threshing crew]

Description: Photograph of a threshing crew at work. A tractor stands in the left foreground, with a man leaning on one of its rear wheels. The thresher stands between two piles of grain, with three men standing on the piles and one man on the thresher. A pile of chaff is at the right, and two stacks of grain sacks are visible.
Date: June 1914
Item Type: Refine your search to only Photograph
Partner: Panhandle-Plains Historical Museum

[Threshing crew]

Description: Photograph of men at work threshing wheat. The thresher is in the center background, with the tractor powering it at the right. Several men stand on or around the machinery.
Date: August 9, 1911
Item Type: Refine your search to only Photograph
Partner: Panhandle-Plains Historical Museum

Driving Mechanism for Tractors

Description: Patent for an invention relating to the engines of tractors that provides "improved transmission gearing for controlling the movements of the machine." (lines 17-18)
Date: August 19, 1913
Creator: Ingram, Joseph D.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Caterpillar-Tractor.

Description: Patent for 1) a mechanism preventing the Caterpillar tractor's driving element from becoming clogged with mud; 2) a mechanism to regulate the force put on the wheels in relation to the weight of the tractor's load; 3) a mechanism to allow this regulation of force in relation the weight of the tractor's load to be manually adjustable; 4) a construction improvement to allow the tractor to be turned in a relatively short radius, including illustrations.
Date: May 7, 1918
Creator: Rountree, Joseph G.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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