8 Matching Results

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in subjects: "plows"  
Results: 1 - 8

Listing-Plow.

Description: Patent for a listing plow, "more particularly an improvement upon the structure disclosed in Patent No. 866,679, issued to [Gottfried Persson] on September 24, 1907" (lines 9-11), including instructions and illustrations.
Date: April 22, 1913
Creator: Persson, Gottfrid
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Sulky-Plow

Description: Patent for the design of a plow that can "overcome obstacles without injury to"(lines 14-15) to the machine. It also includes a new design for a plow foot spring, in addition to an element that allows the foot spring to be adjusted quickly by there operator.
Date: April 24, 1917
Creator: Sanders, John T.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Plow.

Description: Patent for a plow that is simpler, more durable, and cheaper to make than previous ones and allows for easier adjustments in plowing depth.
Date: April 23, 1907
Creator: Stafford, George A. & Henry, Edward
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Plow.

Description: Patent for a new and improved plow. This design consists in "[t]he combination, with a plow-beam, of a plow-standard pivotally secured to the rear end of said beam, a brace pivotally secured to the standard, and a sliding clamp for securing the front end of the brace to the beam" (lines 90-94).
Date: April 13, 1886
Creator: Ketchum, Joel Thomas
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Moldboard

Description: Patent for improvements in plow mold-boards, specifically for shedding sticky soil, and includes illustrations and description.
Date: April 8, 1913
Creator: Martin, William A. & Coleman, Robert J.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Hillside-Plow

Description: Patent for improvements in the construction and design of hillside-plows.
Date: April 2, 1889
Creator: Bunnell, Marcellus Jackson
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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