[modeleng] Re: Piston Rings

Ah----who's got the "bug" then?  Just wait, he'll be doing one in Brass and 
Steel before you know it!!!

Al


--- On Sat, 9/20/08, Tony Wells <oaksfield@xxxxxxxxxxxx> wrote:

> From: Tony Wells <oaksfield@xxxxxxxxxxxx>
> Subject: [modeleng] Piston Rings
> To: modeleng@xxxxxxxxxxxxx
> Date: Saturday, September 20, 2008, 2:46 PM
> Firstly, thank you everyone who took the trouble to reply to
> my query on piston rings on my proposed wooden model of a
> steam engine, which I forgot to do at the time .....
> <blush>  Since then, thanks to a link from Tel, I have
> purchased a set of plans for a wooden double acting
> oscillator from Bill Reichart's widow, who is continuing
> to sell all of his engine plans. Of possible interest to the
> group is that whilst it is designed to run solely on
> compressed air, there aren't any sealing rings at all on
> the (wooden of course) piston. According to Bill's
> original notes, he found that it still ran quite
> satisfactorily however, though with wood's natural
> movement as the ambient air humidity changes, I will have to
> wait and see if this is correct. I shall be changing the
> plans very slightly, to give a bore the same diameter as the
> closest O-ring diameter however, just in case I have to fit
> one retrospectively.
> Thanks again,
> 
> TonyW.
> 
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