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).

Patent for automatic car-coupling for passenger and freight cars.