H.K. Porter, Inc. (Porter) manufactured light-duty railroad locomotives in the US, starting in 1866. The company became the largest producer of industrial locomotives, and built almost eight thousand of them. The last locomotive was built in 1950, but the company continues to produce industrial equipment to this day.
0-6-0ST H.K. Porter locomotive from 1930 at the WK&S
Henry Kirke Porter
H. K. Porter Company builder's plate, 1914
Above 0-6-0 #65, inside view
A fireless locomotive is a type of locomotive which uses reciprocating engines powered from a reservoir of compressed air or steam, which is filled at intervals from an external source. They offer advantages over conventional steam locomotives of lower cost per unit, cleanliness, and decreased risk from fire or boiler explosion; these are counterbalanced by the need for a source to refill the locomotive, and by the limited range afforded by the reservoir.
Finnish fireless locomotive showing typical configuration. Note the fitting at the front of the tank for refilling
Preserved H.K. Porter, Inc. No. 3290 of 1923 powered by compressed air
Lamm & Francq fireless tram engine, 1888
Fireless steam locomotive being recharged with high-pressure steam at Leicester power station in 1967