Pump-Valve Mechanism. (open access)

Pump-Valve Mechanism.

Patent for a pump valve mechanism for use in deep wells, which can be easily removed for cleaning and repair,
Date: August 13, 1907
Creator: Sheen, Davis
System: The Portal to Texas History
Float-Valve. (open access)

Float-Valve.

Patent for improved float valve. This patent is especially adapted for use in water tanks and other receptacles for providing water for stock or for any other purposes.
Date: July 13, 1915
Creator: Sharp, Harry Q.
System: The Portal to Texas History