Allchin 3" traction engine drawings

[Dan B]

Hi

I recently purchased a part built 3" Allchin traction engine with steel boiler.

I'm after a set of drawings for it so I can finish it off, as it came with no drawings. I was told it was based on the 1.5" drawings with all the dimensions doubled. There are some questions that need answering, particularly regarding the design of the boiler.

Can anyone help?

Cheers,

Dan