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in subjects: "Plows -- Patents."  
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Improvement in Plows.

Description: Patent for improvement in plows: "The invention consists in so attaching a revolving disk, cutter, or colter to the beam of the plow that it will rotate on its own axis, and vibrate laterally, to accommodate itself to the line of draft or direction of the beam of the plow; also, in the means used by which the revolving cutter or colter is attached to the beam of the plow, and having the means of swiveling or turning in the beam to accommodate itself to the line of draft of the plow" (lines 22-3… more
Date: December 28, 1869
Creator: Hall, Thomas J.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Trace-Carrier

Description: Patent for trace carrier for a plow "especially designed to support the trace adjustably in a vertical direction, so as to vary the line of the draft upon the plow and also provide a guide and support for the reins" (lines 9-13), including illustrations.
Date: September 25, 1900
Creator: Smith, William F.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Plow.

Description: Patent for improvements to the turning-plow, with convertible attachments for other forms of plow.
Date: December 11, 1900
Creator: Armstrong, John Joshua, Sr.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Plow.

Description: Patent for "a plow of simple and cheap construction and the arrangement of whose parts will permit of a ready adjustment of the handles, both as to height and point of pressure, and also a ready adjustment of the plow-standard, whereby the plow as a whole is adapted for large and small horses" (lines 10-17), with illustrations.
Date: December 6, 1892
Creator: Richmond, Stirling P.
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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
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