Plow. (open access)

Plow.

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.
System: The Portal to Texas History
Car Coupling. (open access)

Car Coupling.

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, and not on the outer side, which would be the case if this bar were square" (lines 15-26).
Date: December 15, 1885
Creator: McAllister, Sanders F.
System: The Portal to Texas History
Fumigator. (open access)

Fumigator.

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.
System: The Portal to Texas History
Improvement in Wagon-Brakes. (open access)

Improvement in Wagon-Brakes.

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
System: The Portal to Texas History