The Showcase > Shows
Shay 100th birthday party
CI:
Here is another Vestal Shay.
They actually gave me this apparently original photograph, but it is about 1/4th the size of the 108 photo.
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crueby:
Great looking engine!
Dan Rowe:
That is shop number 3284. If you want to see the left side of this one and the other Vestal Shays
https://www.shaylocomotives.com/data/dataframe.htm
Choose V in the Shays by owners section. Vestal Lumber was in TN and GA and there are photos of most of them.
Cheers Dan
Dan Rowe:
I took a better look at the photos and wow a feature I have never spotted.
Look at #107. The line in the middle of the boiler goes into the upper section of the smoke box. This is a superheater supply pipe from the superheater to the steam engine. Now look to see the valve, Shutting this valve will stop the engine. There has to be a bypass valve for steam flow to the engine. Now look at the pipe just above the forward running board. That is the exhaust line.
I have to think about that valve for a while. The throttle valve for a superheated Shay is in the smoke box, not on the backhead.
Cheers Dan
crueby:
Okay, question: I don't know much about superheaters and how they are plumbed, but why would there need to be a bypass line around that valve? I would think that valve would be there just as a way to isolate the engine during maintenance? I've not seen any references about running a superheat boiler without the superheater, though I'll admit I've never investigated it!
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