A Hancock Coach cross-sectioned in order to display the engine and driving connections. (A) is the exhaust pipe that leads steam to screen (C) and up the flue (D) along with other exhaust from grate (B). (E) is the boiler, (H) is the out-take pipe, (K) is the engine cylinder, (J) is the water-feed pump, (G) is a rotary fan that creates forced drought, and (F) is the flue leading to the grate.
Homans, James E. A Practical Illustrated Treatise on Automobiles (New York, NY: Theo. Audel & Company, 1907) 8
Courtesy the private collection of Roy Winkelman