Utilizing Sulfur-Containing Petroleum. (open access)

Utilizing Sulfur-Containing Petroleum.

Patent for a method of removing sulfur from Beaumont petroleum and converting it into sulfuric acid.
Date: February 20, 1912
Creator: Robinson, Clarence I.
System: The Portal to Texas History
Grain-Door for Cars (open access)

Grain-Door for Cars

Patent for a door for grain containers. Illustrations included.
Date: February 20, 1912
Creator: Miller, Rudolph Charles
System: The Portal to Texas History
Plunger. (open access)

Plunger.

Patent for a plunger for use in pumps and air compressors that fits tightly into the cylinders of the machine.
Date: February 27, 1912
Creator: Ohmstede, August
System: The Portal to Texas History