Q: I need help identifying a specific Pennsylvania RR steam engine. The number on the cab was 1299. What class was this ...

[RimstarOrg] has posted an awesome writeup on his Hero’s steam engine . Hero’s engine is a Greek design from the first century and is the earliest known steam engine. It’s amazing to think ...

A mechanic of this city has constructed and set in motion a steam engine on the novel but obvious plan of working the “ inlet and ou,tlet valves “ by the direct' action of steam, instead of ...