healey36 wrote:I flipped the link to Sarge for his take; he says it's a cross-compound set-up, which I've seen I've seen a few of before but they looked somewhat different. High-pressure cylinder on one side, low-pressure on the opposite.
I saw this post earlier today and was almost inclined to post something humorous. Being an ex-auto tech and mechanically inclined, I was gonna say: It's a supercharger for a steamer!
