Engines > Restoration of Model Engines

D.Maggs - workshop engine

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redhouseluv:
Whilst waiting for the postman to deliver the bits to finish the Anthony Mount Trapezium I thought I'd showed you the next project. It's a restoration, and it's a big'un. It's 12" wide and 74cm (29") long and weighs in at 25kg (55lbs). I have been informed it's not a model but a workshop engine, a term I had not encountered before. I Googled D.Maggs (see cylinder) and they were a very old engineering firm in Bourton, Dorset UK who became E. S. Hindley and Sons, makers of stationary engines.

I got it running and it certainly has some momentum and makes a wonderful noise. The chap who I bought it from never got round to fixing the missing feed pump; you can see where it should go - this is going to be my mission and I'm going to use a Stuart 5a feed pump but change the air reservoir to something more in keeping with the whole machine. I have looked thorugh Preston Services pictures and have found similar size engines with a feed pumps and novel looking air reservoirs. It has a cast exhaust exit (funnel) in the cylinder similar to an engine Michael just finished restoring!

It'll take a bit of thinking as I want to use the existing eccentric which can be seen spinning around in the video, but will need to get the 'throw' right or near as possible for it to operate.

https://www.youtube.com/shorts/2uvnuBlh4zw

PaulR:
Woo, what a beauty! Why not build a model of it?

Jasonb:
Some nice details on that one. I've not seen the bolt on plate to retain the eccentric strap used on a steam engine before.

Are you just going to use the 5A main pump casting and make the rest? even the casting is not a difficult fabrication and a lot cheaper plus you can make it the opposite hand to the stuart and have the vertical chamber to the outside which would work better for plumbing.

redhouseluv:
Yes the idea was to use a set of Stuart 5a pump casting's - it's a complete set, though old, and still packaged, so maybe I'd be better of making it from scratch and selling them whole as I wouldn't be using the eccentric (hopefully); I hadn't really thought about it too much.

I did wonder what the disc against the eccentric was for; I thought it was some sort of flat pulley to run something from

redhouseluv:

--- Quote from: PaulR on June 17, 2025, 04:15:04 PM ---Woo, what a beauty! Why not build a model of it?

--- End quote ---

I agree Paul, it's a nice engine, but I have soo many projects in need of attention, whether castings or restorations - I'm not complaining, keeps me off the streets and out of the pubs!  :D

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