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Grain-Hulling Machine. (open access)

Grain-Hulling Machine.

Patent for improvements in grain-hulling machines for further effectiveness and convenience at a lesser cost.
Date: August 26, 1916
Creator: Couch, Albert B.
System: The Portal to Texas History
Car-Coupling (open access)

Car-Coupling

Patent for a simple, inexpensive, durable, and efficient car coupling "which will insure positive automatic coupling when two opposite draw-heads come together" (lines 16-18).
Date: April 26, 1892
Creator: Bird, Robert L. & Bird, John L.
System: The Portal to Texas History