Attachment for Stalk-Cutting Machines. (open access)

Attachment for Stalk-Cutting Machines.

Patent for improved, cheap, and simple stalk-cutting technology with shielded protection, including instructions and illustrations.
Date: September 17, 1918
Creator: McCray, Henry L.
System: The Portal to Texas History
Wire Twister and Tightener. (open access)

Wire Twister and Tightener.

Patent for a wire twister and tightener for wire fences. With this invention, "the fence-wire is caused to be contracted, twisted, and made taut" (lines 17-18). It is a set of toothed ratchet wheels that have v-shaped slots for the wire. Pawls act on the teeth, and springs and levers move the pawls.
Date: March 17, 1896
Creator: Stafford, George A.
System: The Portal to Texas History
Windmill. (open access)

Windmill.

Patent for an improved windmill, a wind-driven wheel which will operate with the wind blowing in any direction and without the necessity of a typical vane and which produces a maximum velocity with a minimum amount of wind.
Date: April 17, 1906
Creator: Bartlett, Robert S.
System: The Portal to Texas History