Resource Type

Heater for Gaseous Fluids. (open access)

Heater for Gaseous Fluids.

Patent for "an attachment for use in connection with internal combustion engines whereby heavy oil...may be advantageously used as fuel" (lines 9-12) including instructions and illustrations.
Date: March 16, 1915
Creator: Anderau, Joseph Engelbert
System: The Portal to Texas History
Display Apparatus. (open access)

Display Apparatus.

Patent for an apparatus that displays objects enclosed in containers and allows them to be retrieved without "changing the position of any other than the [container] to which access is desired" (lines 16-17) including instructions and illustrations.
Date: February 16, 1915
Creator: Boudreaux, Carlos
System: The Portal to Texas History