Liquid-Measuring Device (open access)

Liquid-Measuring Device

Patent for a device that determines the amount of liquid (particularly gasoline and oil) that flows from its glass container with the end of facilitating the exchange of goods, including illustrations.
Date: May 25, 1920
Creator: Meredith, John Dewitt
System: The Portal to Texas History
Pipe Clamping Device (open access)

Pipe Clamping Device

Patent for improvements of a pipe-clamping device which is durable and easy to construct.
Date: August 25, 1915
Creator: Lincoln, Robert A.
System: The Portal to Texas History
Pipe-Pulling Device. (open access)

Pipe-Pulling Device.

Patent for a device for pulling pipes from wells without damaging the pipe, with a safety feature in case the pipe breaks.
Date: September 25, 1917
Creator: Osborne, William R.
System: The Portal to Texas History