The Fordson used the Model T coil magneto system; and water and oil pumps were eliminated in favor of the simpler thermosiphon cooling and splash lubrication.
The general principle of heat pipes using gravity, commonly classified as two phase thermosiphons, dates back to the steam age and Angier March Perkins and his son Loftus Perkins and the "Perkins Tube", which saw widespread use in locomotive boilers and working ovens.