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

I came across an auction listing last week for "Disassembled Small Hobby Machine Pully Drive Assembly." and the details said, "may be missing components". From the pictures I could tell it was a small Steam engine and I ended up winning it for $80.00.

I picked it up today from the auction house.

This thing is a Beast.  2" bore and Stroke,  All Cast iron castings.  It is very well machined, but probably never fully assembled.  All the parts were there except for a couple of nuts and bolts.  I loosely bolted it together for the pictures, and now I am looking to see if anyone can identify the castings? 

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Here are a few of the pictures from the auction:

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Doe's anyone recognize these castings?

I will post more pictures later on as I clean it up, paint and polish, mount on a board etc.

Jim in Minnesota

Congrats, Jim..!!  You've won a bargain.

It looks like a 1/4 HP American Model Supply of Chicago engine.
They were offered in 1/8, 1/4, 1/2, and 1 hp sizes.

These engines were also offered by Evray Model Supply, other Chicago area industrial supply houses and even Strelingers.

The main thing missing is the cast base.

Here is a video that includes one the same size.

Gil


https://youtu.be/449aUXf_3U0

Thanks Gil.

The American model supply is very similar. I think though that the one I got is 1/2 HP or larger.  This has a 2" bore, and is much larger than my 1/4 HP SIPP.  I will have to see if I can track down a set of drawings for this.  There are a couple of holes drilled and tapped into the cylinder for cylinder drains (I think) that I cannot figure out the thread on.

Shame about the Cast Iron base if it did have one, it wasn't included in any of the auction lots or in any of the pictures.

Jim in Minnesota

I found this one on eBay, and it appears to have the same castings as my unknown mill engine, and looks to be the same size.  I would think that this one on eBay has the correct cylinder and valve chest, whereas mine has those parts made not from castings.  So this looks very much like the engine Gil identified as American Model supply in Chicago. 

https://www.ebay.com/itm/186109911409?hash=item2b5503 is the eBay listing.

Here is a photo comparison.

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Yes, it is here it didn’t look quite as big on eBay, so I am glad I seen yours in person

https://www.officeofsteamforum.com/collections-pictures/took-another-little-road-trip/msg59047/?topicseen#msg59047