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Windmill-Regulator.
Patent for an automatic windmill regulator, which turns the windmill in and out of the wind based on the water level of the water tank.
Date:
July 12, 1910
Creator:
Echols, Champ T.
System:
The Portal to Texas History
Ventilator
Patent for Ventilator
Date:
September 12, 1916
Creator:
Curtis, Thomas R
System:
The Portal to Texas History
Cultivator.
Patent for a cultivator, by William J. Gillentine. It provides a means to adjust cultivator shovel-gangs relative to each other. Includes a lever-and-ratchet mechanism.
Date:
June 12, 1906
Creator:
Gillentine, Willliam A.
System:
The Portal to Texas History