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

@TEC,

Thanks for the valuable information. I am still confused with the steam supply pipe attached to the mid height of the boiler, and the other pipe that is sticking out of the boiler top. Any clue please?

The steam pipe goes inside and bends towards the top to pick up steam. This allows less pipe to be exposed to cold air. The pipe on the top is likely a safety valve.  I think this was added by Dewey when he decided to use the boiler for verticals. As you can see on the verticals, the frame screws in where the safety valve was originally located  There's a traditional safety valve in the smokestack shown Dewey's fire engine patents.  I'll be sending you a PM.

What is the overall length of the engine?

I've updated this posting to include a picture.  I suspect the drawing is accurate enough to use for plans.

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