Hypodermic Syringe. (open access)

Hypodermic Syringe.

Patent for a new and improved hypodermic syringe. This design consists in "the combination of a barrel, a sleeve secured to said barrel and having a diaphragm adapted to close the end of the barrel, a needle-carrier having a cylindrical projection working in the sleeve, an outlet-tube secured to the needle-carrier and extending through the diaphragm in the sleeve, and a coiled spring arranged around said tube within the cylindrical projection of the needle-carrier" (lines 71-80).
Date: April 26, 1887
Creator: Dunbar, Addison
System: The Portal to Texas History
Design for a Badge. (open access)

Design for a Badge.

Design patent for a badge, "consisting of a plate or body ornamented on one side with the representation of a rising sun, an arm and hand, a serpent, and a shackle and lock" (lines 43-46). The accompanying illustration is not available.
Date: July 26, 1887
Creator: Horton, Henry A. R.
System: The Portal to Texas History
Car-Coupling. (open access)

Car-Coupling.

Patent for automatic car-coupling for passenger and freight cars.
Date: April 26, 1887
Creator: Ferguson, George Jones
System: The Portal to Texas History