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Improvement in Seed-Planters.

Description: Patent for the improvement of seed planters using a gage-wheel "to regulate the depth of the furrow made by the plow" (lines 16-17), including illustration.
Date: December 28, 1858
Creator: Marshall, Frank M.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Plow.

Description: Patent for an improvement to the plow by adjusting various devices for better results.
Date: April 15, 1919
Creator: Kopplin, Otto E.
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 "may be detached and used independent of the frame or carriage; also, that the tongue or pole may be detached and removed from the axle, and such axle, together with the bolster and hounds, may be applied to and used with the farm or other wagon. Thus by means of the attachments described a farmer can, by providing himself [or herself] with the pole and the attachments thereto . . . readily convert his [or her] ordinary walking plow into a wheel-p… more
Date: July 5, 1887
Creator: Green, William H.
Item Type: Refine your search to only Patent
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
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