19 Matching Results

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Tractor-Coupling

Description: Patent for tractor coupling. The object of the invention is to provide a coupling for tractor and plow. When a plow hits an obstruction, the coupling will automatically disengage tractor and plow without breaking any parts.
Date: December 21, 1920
Creator: Hart, Lawrence H.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Plow.

Description: Patent for a plow that improves the type of plow employing "a moldboard and plowpoint or share bolted to a standard" (lines 9-11), with illustrations. This patent improves upon previous patents numbered 974,675 and 974,676 issued to the same inventor on November 1, 1910.
Date: January 6, 1920
Creator: Kelly, Robert Marvin
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Partner: UNT Libraries Government Documents Department

Plow.

Description: Patent for an improvement to plows that allows adjustments to be made to them both vertically and angularly.
Date: July 30, 1920
Creator: Zebranek, Joseph
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Partner: UNT Libraries Government Documents Department

Plow.

Description: Patent for improvements in plows that will break and bed the soil at a single operation while it was customary for a plow to have to go over the soil at least twice in order to break the soil. This invention is also meant to conserve time and labor and cultivate the soil more thoroughly.
Date: June 8, 1920
Creator: Wendtland, William Sr.
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Partner: UNT Libraries Government Documents Department

Plow

Description: Patent for a plow which plows two furrows simultaneously. An axle is mounted on wheels, and the two adjustable plow beams pivot from the axle so that furrow depth and the width between furrows can be adjusted. Patent includes illustrations.
Date: November 30, 1920
Creator: Henderson, Warren H.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Grass Destroyer

Description: Patent for mechanical grass destroying equipment. This machine produces the results of harrowers, diggers and plows to destroy unwanted plants such as Bermuda and Jackson grass by "sifting the earth off their roots and dropping it back on the ground, and collecting the tops and the roots." (lines 15-17).
Date: March 2, 1920
Creator: Coker, Alvin
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Hay-Press.

Description: Patent for the improvement of hay presses used for forming tightly-compressed hay bales. Improvements include the provision of, "a hand or power operated hay press which may be operated to cause a great pressure to be exerted on the hay or other material being pressed, with a minimum exertion on power means" (lines 12-16). The invention of simple and durable construction with minimal parts reducing need for repair.
Date: November 9, 1920
Creator: Powell, Walter E. & Powell, Rosa E.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Shovel-Plow.

Description: Patent for the improvement of the shovel plow. The improvement of the shovel plow allows for the adjustment of the plow height as needed.
Date: February 17, 1920
Creator: Urban, John
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Peanut-Harvester

Description: Patent for peanut harvesting machine. It helps pull the peanut plant from the ground easily and aids in bunching them without having to use your hands.
Date: October 26, 1920
Creator: Phillips Willie Orman
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Drag

Description: Patent for a ground drag for "grading and removing refuse from the surface of the soil" (lines 10-12) that can be steered and that can gather and dispose of the dirt it levels off, including illustrations.
Date: May 11, 1920
Creator: Nelson, Charley E.
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Partner: UNT Libraries Government Documents Department

Crank-Axle Adjustment.

Description: Patent for a crank axle adjustment "to simplify and produce and efficient crank axle that will efficiently perform its function in connection with the general structure of a plow or cultivator." (lines 13-17)
Date: June 15, 1920
Creator: Kopplin, Otto E.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Clevis Attachment for Plows.

Description: Patent for an agricultural plow attachment that allows for more precision concerning the measurement of depth of the plow point against different types of terrain/soil conditions.
Date: February 13, 1920
Creator: Wolter, Fred W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Colter.

Description: Patent for a Colter attachment for plows that can be adjusted to various angles and increases the efficiency of the plow.
Date: August 31, 1920
Creator: Dillon, Robert L.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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