These are schematic diagrams of some of the better modern steam automobile power plants. The Coats was designed by Allen Conkling Staley of Purdue. The car was made and driven around campus and is written up in the May, 1923 “The Purdue Engineering Review” Vol. 18 Number 4. Staley was born in 1885 and died in California in 1960. Needless to say his car and all information about it has disappeared. We think it was supposed to be manufactured in Ohio as the Coats steam car although there is something called Coats Steamers, Inc. out of Indianapolis and something called Coates Steam Car Company of Columbus, Ohio. We think that Charles A. French who at one time worked for International Harvester of Chicago also worked with Staley. Anyhow, the work was similar and it was all the next step after Stanley and White to make a practical steam car. Unfortunately for the steam fraternity the infrastructure was gone and therefore these vehicles never went into production.