Boll Weevil Catcher (open access)

Boll Weevil Catcher

The objective of the invention is to improve to catching and destroying boll weevils with a device that is easily attached to a cultivator. This device includes "receptacles filled with an insect destroying liquid." (lines 23-24).
Date: July 5, 1921
Creator: Ploch, Alex
System: The Portal to Texas History
Thread-cutting Tool. (open access)

Thread-cutting Tool.

Patent for a thread cutting tool developed to efficiently thread bolts, rods, and other parts without damaging the ends of the thread, includes illustrations.
Date: August 5, 1919
Creator: Newman, Malcolm A.
System: The Portal to Texas History
Piano. (open access)

Piano.

Patent for a new piano "in which the strings are vibrated through the medium of a bow, as in a violin, instead of being struck with hammers in accordance with the usual method" (lines 8-12), including illustrations.
Date: June 5, 1900
Creator: Holcombe, Edgar L.
System: The Portal to Texas History