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Improvements in Tractors

Description: Patent for a tractor that of a light and durable but simple construction for the purpose of advancing the implements over the ground.
Date: unknown
Creator: Lightfoot, Thomas W.
Partner: UNT Libraries Government Documents Department

Discharge-Nozzle

Description: Patent for discharge nozzle for insecticide spraying machines. Proposed nozzle design to have adjustable opening.
Date: July 9, 1918
Creator: Gohmert, Otto Adolph
Partner: UNT Libraries Government Documents Department

Improvement in Cotton-Presses.

Description: Patent for the improvement of the cotton press using a cam-lever for operating the side of the press-box with two different application of power, including illustration.
Date: February 16, 1858
Creator: Witting, F. W.
Partner: UNT Libraries Government Documents Department

Cultivator.

Description: Patent for a riding cultivator that keeps the shovel gangs positioned "parallel with the line of the draft, or with the longitudinal axis of the machine" (lines 19-21), by shifting them in the direction that the driver guides the wheels. The cultivator also provides a means to keep the depth of cultivation as uniform as possible when working on uneven ground or in different kinds of soil.
Date: January 3, 1922
Creator: Mayer, Henry A.
Partner: UNT Libraries Government Documents Department

Oil-Burner.

Description: Patent for an oil burner which ensures the "formation of a thorough mixture of oil, air and a fluid under pressure, such as steam or compressed air" and the prevention of the "flooding of the burner with surplus oil".
Date: June 3, 1913
Creator: Eckhardt, Richard H.
Partner: UNT Libraries Government Documents Department
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