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Car-Coupling. (open access)

Car-Coupling.

Patent for an improved, simple, and effective car coupling that couples automatically and without anyone having to go between the cars. It consists of a drawhead with a slot on one side, upper and lower slides in the drawhead, a coupling pin that sits in the upper slide, a lever that is connected to the slide, a spring that holds the lower slide in place, and a bolt that connects the lever with the upper slide.
Date: May 30, 1893
Creator: Cundiff, Middleton
System: The Portal to Texas History
Automatic Circuit-Closer Attachment for Telegraph-Keys (open access)

Automatic Circuit-Closer Attachment for Telegraph-Keys

Patent for an attachment for telegraph keys, so that the line circuit closes automatically upon the release of the key.
Date: April 30, 1918
Creator: White, James L
System: The Portal to Texas History