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Plow.
Patent for a new and improved plow. This design consists "[i]n the combination, with the double mold-board, of the recessed plow-blade, constructed in two parts secured to the mold-board, the said part having flat points, which are provided with cutting edges and raised portions extending from the crotch of the cutting-blades to the rear, in order to turn the soil to each side" (lines 84-91).
Date:
October 7, 1884
Creator:
Schulz, Carl A.
System:
The Portal to Texas History
Car Coupling.
Patent for a new and improved coupling for railroad cars. This design "is to make a car-coupler in which the link shall cause the pin to drop within it, which can be coupled or uncoupled from the side or top of cars without danger to the brake[people], and which is provided with means for lifting the link of cars with lower draw-heads" (lines 11-17).
Date:
October 7, 1890
Creator:
Testard, Adrian
System:
The Portal to Texas History