Resource Type

Car-Coupling. (open access)

Car-Coupling.

Patent for an improved car-coupling that consists of a hollow drawhead, a knuckle pivoted in the drawhead, a lock that pivots across the drawhead, a catch on one side of the drawhead, a spring presses on the side of the lock, a lever pivoted in the drawhead, a hand rod connected to the arm, a hand rod connected to the drawhead, and a bell crank lever pivoted in the drawhead.
Date: May 22, 1894
Creator: Roosevelt, James A.
System: The Portal to Texas History
Tellurian. (open access)

Tellurian.

Patent for a device "which shall illustrate the axial and orbital movements of the earth and the directions of the sun's rays upon our globe... by simple and effective means of automatic character." (Lines 17-24) Includes instructions and illustrations.
Date: June 22, 1897
Creator: McArthur, Neel John
System: The Portal to Texas History