mogogear
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A top funnel for my stackI am looking for a funnel cap to top the stack on my Modeen /Crompton boiler. The stack is plainly made of copper and is shade over 1" I.D. and 1 1/16"O.D.
I am looking for a nice pronounced "fluted " type .. Is there any sources for one that resembles a original Bowman 135? I am unsure what size their stacks are////
Thanks ( I have checked a few known resources to me but I am sure I do not know all the right ones!!)
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johnreid
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The stack on my 135 is .9725 inches
I think it would be so easy if one had a lathe. Do you know anyone who is a machinist?
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Nick
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I think he does.
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Les Marsh
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Bowman chimney sizes:-
101 chimney, 8 1/2" long, exhaust pipe hole 2 5/8" from bottom.
101 chimney slots 3 1/4" from bottom, 3/4" long.
122 chimney, 6 3/4" long, exhaust pipe hole 2 3/4" from bottom.
122 chimney slots 3 1/4" from bottom, 1/2" long.
135 chimney, 5" long, exhaust pipe hole 1 1/2" from bottom.
All chimneys are made from 1" brass tube
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mogogear
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| ncseverson wrote: | | I think he does. |
OK.... I do .........I wonder what a cap would cost........if I were to request one from a machinist.....? 
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Bogstandard
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Mo,
Show me one similar, or do a quickie sketch and post it here, to get the shape that you want.
Borrow a vernier and get the exact in and out dimensions. Near enough isn't good enough if time is to be spent on it.
I will see what can be done from the recycle box.
Postage costs only required for this one
This isn't a worldwide offer, otherwise I would be making chimney caps forever.
John
If you can get that done, I might be able to show on here how easy they are to do, and anyone with a small lathe can churn them out by the dozen.
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mogogear
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Thanks John- I didn't expect you to reply here- I thought Nick or somebody had a lathe just waiting to be used...
I know my Modeen will run even better with a "Bogstandard" cap on top of the stack!! 
O.D of copper stack pipe=28.02mm
I.D. of pipe=26mm
Height from top of stack- Ok with 20mm-25mm what I am aiming for or scan a quick sketch .. back with an edit soon..
Thanks again for your kind offer..
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Bogstandard
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Do you want something like the funnel cap on Odilons new steam plant in his new boat?
John
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mogogear
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That would be just dandy!! Please feel free to interpret with what material you have available..
A beggar is not a chooser!!
I bow as I leave the room!!
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Bogstandard
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Mo,
No problems, I will see if I can squeeze the article out of myself tomorrow, but no promises. I have a long appointment tomorrow.
John
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mogogear
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I have a long way to go before t he cap on the stack holds me back from steaming the pond....
At your convenience..
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johnreid
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A true act of kindness and generosity. A good thing to see. Compliments to both of you, isnt this place great?
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mogogear
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You are Oh, so right John. He ( and others ) is way too kind... I do not have a lathe- and I thought Nick was fishing for a small custom job.. which I was glad to pay someone for things needed..
I sure didn't expect John to respond..  ..
A kind group indeed... I am going to have to figure out a name that rolls off the tongue that pays homage to this T. U. Mamod & other S. F. crew with a name on the stern of a boat...TUM&OSF just doesn't do it justice....
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