UNT Libraries Government Documents Department - 4 Matching Results

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Plow.

Description: Patent for an improved plow, which can support a rudder-blade adapted for use with a middle-breaker moldboard.
Date: December 31, 1901
Creator: Richmond, T.
Item Type: Refine your search to only Patent

Car Coupling.

Description: Patent for a new and improved coupling for railroad cars. This design "form[s] the central opening of the draw-bar with a tup-bar having rearwardly a spiral spring. The forward end of this tup-bar is inclined forwardly somewhat at an angle at the top, so that when the said bar is pushed forward by the spiral spring at its rear end, the coupling-pin will rest upon this forwardly-projecting end of the bar, while the link will rest beneath, so that in dropping the pin will rest within the link, an… more
Date: December 15, 1885
Creator: McAllister, Sanders F.
Item Type: Refine your search to only Patent

Fumigator.

Description: Patent for an improved fumigator that's primary purpose is to kill insects within corn storage units without damaging either the corn or the building. Illustration included.
Date: December 1, 1891
Creator: Bozarth, Stephen P.
Item Type: Refine your search to only Patent

Improvement in Wagon-Brakes.

Description: Patent for "wagons which have brakes applied to them, so constructed that in descending a grade the brakes will be automatically applied, and, in moving on a level or ascending a hill, the brakes will be relieved from the wheels." (Lines 6-11) Includes instructions and illustrations.
Date: December 4, 1877
Creator: Hart, Alfred
Item Type: Refine your search to only Patent
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