Cleaning Apparatus. (open access)

Cleaning Apparatus.

Patent for a cleaning apparatus, which cleans objects by blasting air across them and has an air cleaning system for use after the cleaning is done.
Date: June 1, 1909
Creator: Mayo, William C. & Houlehan, John
System: The Portal to Texas History
Governor for Explosive-Engines. (open access)

Governor for Explosive-Engines.

Patent for a governor for explosive engines for use in trains, which will increase the fuel efficiency of the engines.
Date: April 27, 1909
Creator: Mayo, William C. & Houlehan, John
System: The Portal to Texas History