TROTTERMATIC
Rotary Engine
US Patent Number 3,220,388 Rotary Internal Combustion Engine November 30, 1965
In this photo from 1964 you see the engine sitting inside the front door of our house in Shreveport.
This is an actual running model of the engine. From what I remember when I was a child, it was very loud!
Inside the Trotter Rotary Engine