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Controlling Mechanism for Windmills. (open access)

Controlling Mechanism for Windmills.

Patent for the operation of a windmill pump that may be automatically controlled so that a constant supply of water will be maintained in the storage tank.
Date: June 18, 1918
Creator: Bradford, Joseph W.
System: The Portal to Texas History
Automobile Extracting Device (open access)

Automobile Extracting Device

Patent for an Automobile Extracting Device, which may be readily carried in compact form in one of the storage compartments of a motor vehicle, including illustrations.
Date: April 9, 1918
Creator: Morrow, Thomas B.
System: The Portal to Texas History
Heat-Producing Process. (open access)

Heat-Producing Process.

Patent for Improvements in Heat-Producing Processes by way of "process of producing heat and conserving heat..." for use in various types of furnaces (lines 9-10).
Date: October 15, 1918
Creator: Bone, David R.
System: The Portal to Texas History