[modeleng] Re: Automatic water feed pump

Thanks Tel
Alan
----- Original Message ----- 
From: "TEL" <tel47@xxxxxxxxxxx>
To: <modeleng@xxxxxxxxxxxxx>
Sent: Saturday, January 12, 2008 10:50 PM
Subject: [modeleng] Re: Automatic water feed pump


Rex Tingey
Vol 144
Issue 3582    pg. 384
Issue 3583    pg  428



> Some years ago there was a short series in ME on an automatic (loco?)
boiler
> feed pump.
>
> As far as I recall, it used a piston in a cylinder to "sense" the density
of
> fluid at a specific level in the boiler, and if that was water, held the
> actual pumping piston closed, and if not, it allowed it to move thus
pumping
> water into the boiler.
>
> I believe it was published in the 70's, possibly earlier.
>
> Can anyone with a better memory than mine, or with better luck at the
index,
> let me know who wrote it, or when it was?
>
> http://www.alanstepney.info
> Alan Stepney's Model Engineering, steam, and workshop pages.
>
> MODEL ENGINEERING DISCUSSION LIST.
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