Resource Type

Linotype and Intertype (open access)

Linotype and Intertype

Patent for automatic stopping of matrices.
Date: February 11, 1919
Creator: Sundstrom, Herman T.
System: The Portal to Texas History
Pump. (open access)

Pump.

Patent for a new and improved design for pumps as they are used in deep wells. New design meant to prevent sand from entering machine between the working barrel and plunger.
Date: February 1, 1919
Creator: Carmichael, Robert E.
System: The Portal to Texas History
Sample Taking Device (open access)

Sample Taking Device

Patent for an oil sample-taking device.
Date: February 25, 1919
Creator: Dodds, Redus D.
System: The Portal to Texas History