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Seed Planter.
Patent for a new and improved seed planter. This design consists "[i]n a seed planter, [with a] seed-dropping cylinder . . . with a row of recesses around its middle part, and rows of different-sized recesses provided with adjustable gage-screws around its end parts, whereby different-sized seeds can be dropped by the same cylinder" (lines 67-74).
Date:
June 14, 1881
Creator:
Holekamp, Julius
System:
The Portal to Texas History
Car Coupling.
Patent for a new and improved coupling for railroad cars. This design "consists in a car-coupling formed of two coupling-hooks pivoted on a pivot projecting from the bottom of the car, which coupling hooks pass through an inverted-V-shaped guide-slot in the guide-plate, held in front of the pivot, and the said coupling-hooks are connected with a vertically-moveable bar for raising the coupling-hooks. The coupling hooks are raised and their free ends are pressed together, and if then the coupling-hooks are released they swing downward and their free ends are separated" (lines 7-18).
Date:
June 24, 1884
Creator:
Grothaus, Frederick E.
System:
The Portal to Texas History