UNT Libraries Government Documents Department - 3 Matching Results

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Filter

Description: Patent for "a new and improved filter which is simple and durable in construction and easily and conveniently cleaned without disturbing the gravel" (lines 13-17).
Date: November 6, 1889
Creator: Fretz, Emil & Waespi, Jacob
Item Type: Refine your search to only Patent

Plow.

Description: Patent for a new and improved plow. This design consists in "[t]he combination, with a plow carriage, having a sprocket-wheel attached to the driving-wheel, and a rotary mold-board provided with a sprocket-hub having bearings in the plow-beam, of a shaft journaled upon the carriage-frame provided with toggle or universal joints, and suitable chain or belt connections for the sprocket-wheels" (lines 69-76).
Date: August 6, 1889
Creator: Kirk, Johnathan P.
Item Type: Refine your search to only Patent

Plow

Description: Patent for "an improved attachment for the mold-boards and landsides of plows, the object being to furnish a plow or similar impliment with an attachable and removable covering for the landside and mold-board, which will prevent the adhesion of soil thereto" (lines 12-18).
Date: November 6, 1889
Creator: Miles, Fredrick Alanson
Item Type: Refine your search to only Patent
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