Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

Got it but never heard of a valve of any kind inside a boiler. Mike, is your engine an oscillator? In that case no valves required.

I'm working on part 2 of the article which will primarily be about Kraft & Huffington, Buckman, Union Mfg and Union Toy Mfg.  I'm starting to wonder if the boats, which were shipped in Union Mfg. or Union Toy Mfg boxes, were actually made by them.  One thing that might help is  if anyone can tell me if the cylinders in the Little Wonder boat are identical to the cylinders on the Buckman Young America or Little Giant engines.  I don't have a boat, and I can't see the detail on the bottom of the cylinders in auction pictures.  Union Mfg was the predecessor to Union Toy Mfg, and there's a reason the cylinders might be slightly different, even on Young America engines, as can be seen in the pictures. 

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@Nick, I sent you some info a couple of days ago, if you haven't received it, check your spam box. don't