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
Net-Frame. (open access)

Net-Frame.

Patent for a foldable and stable fishing net-frame.
Date: January 14, 1919
Creator: Franklin, Robert M.
System: The Portal to Texas History
Automatic Firing Device for Explosive Shells. (open access)

Automatic Firing Device for Explosive Shells.

Patent for automatic firing device where "an explosive shell may be caused to travel any distance within the range of the shell through the air without exploding" (lines 14-17).
Date: January 7, 1919
Creator: McCombs, Orville K.
System: The Portal to Texas History
Attachment for Laundry-Extractors (open access)

Attachment for Laundry-Extractors

Patent for a time cut-off and brake attachment for laundry extractors for preventing accidents. Illustrations included.
Date: January 23, 1912
Creator: Moore, Robert Marion
System: The Portal to Texas History