Resource Type

Month

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
Furnace (open access)

Furnace

Patent for "a system of producing heat for kilns, furnaces for burning lime, furnaces for boilers, and similar purposes, and the object is to provide apparatus for consuming all the fuel fed to the furnaces and for pre-heating the air which is fed to the furnaces and for excluding all air which has not been preheated" (lines 8 - 15).
Date: June 12, 1917
Creator: Bone, David R.
System: The Portal to Texas History