Resource Type

Check-Turning Device (open access)

Check-Turning Device

Patent for improvements of check-turning devices. The improvements allow checks to be turned quickly especially by adding machine operators.
Date: February 18, 1919
Creator: Albaugh, Ellis
System: The Portal to Texas History
Rotary Engine (open access)

Rotary Engine

Patent for a rotary engine that uses steam as a motive agent. Illustrations included.
Date: February 18, 1913
Creator: Allan, William N.
System: The Portal to Texas History