Improvement in Insect-Destroyers (open access)

Improvement in Insect-Destroyers

Patent for an insect destroyer that forces fire smoke into the ground, targeting ants and other insects.
Date: May 29, 1877
Creator: Melcher, John C.
System: The Portal to Texas History
Cotton-Baling Press. (open access)

Cotton-Baling Press.

Patent for "an improved construction of hydraulic baling-presses, whereby it is designed to provide simple and more durable and reliable presses of this kind than any now in use" (lines 8-12).
Date: July 29, 1884
Creator: Baumgarten, Christian
System: The Portal to Texas History
Bridge Construction (open access)

Bridge Construction

Patent for a bridge building technique especially for arch or span bridges, to stabilize the bridge as well as making the bridge easy to assemble.
Date: December 29, 1914
Creator: Huebner, George
System: The Portal to Texas History