COUPLING PATENT (open access)

COUPLING PATENT

This patent is for a new coupling system to connect hollow pipes. It is specifically designed to address issues of vibration, which cause the coupling pin to become damaged.
Date: July 10, 1919
Creator: Hiegel, Joseph L.
System: The Portal to Texas History
Nutcracker (open access)

Nutcracker

Patent for a nutcracker that can be used for a variety of types of nuts without crushing them.
Date: September 10, 1912
Creator: Moser, Frank W.
System: The Portal to Texas History