Resource Type

Process For Expressing Fluid From Paraffin Compositions. (open access)

Process For Expressing Fluid From Paraffin Compositions.

Patent for using a cooling and heating process to assist with expressing fluids from paraffin compositions.
Date: January 20, 1914
Creator: Hansen, Julius
System: The Portal to Texas History
Rail. (open access)

Rail.

Patent for an invention relates to improvements in railway rails. The object is to provide a hollow rail having simple and cheap, but effective means for connecting the ends of the rails.
Date: October 20, 1914
Creator: Rochel, Ken E.
System: The Portal to Texas History