Month

Screen Attachment for Suction or Exhaust Fans. (open access)

Screen Attachment for Suction or Exhaust Fans.

Patent for a screen attachment that protects fan blades from damaging and being damaged by debris. Includes instructions and illustrations.
Date: June 29, 1897
Creator: Davis, Micajah R.
System: The Portal to Texas History
Improvement in Car-Couplings. (open access)

Improvement in Car-Couplings.

Patent for improvement in car-couplings, including description and illustrations.
Date: June 29, 1875
Creator: Ramage, Charles E.
System: The Portal to Texas History