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Ant Trap
Patent for an ant trap designed as a ring-shaped trough and which allows for the drainage of rainwater through a pipe fitted with a porous plug. Both walls of the trough are capped with inward and downward curved flanges.
Date:
August 1, 1922
Creator:
Scrivner, Jefferson Davis
System:
The Portal to Texas History
Air Cycle.
Patent for a pedal power "aeroplane" (line 9) with improvements to driving pedals and controlling the flight path.
Date:
August 1, 1922
Creator:
Kinnard, Laban B.
System:
The Portal to Texas History