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I know this is only a small article, but it needs some additional explanation for non- 'rail nuts'. For example 'throat sheet', 'crown sheet'...huh? If there was ever an article that needed a diagram, this is it!
EdJogg 20:34, 15 November 2007 (UTC)
I have added some clarification. Biscuittin ( talk) 08:43, 3 April 2008 (UTC)
I've added an external link but it only shows a small part of the thermic syphon. I'll see what else I can find. Biscuittin ( talk) 16:40, 3 April 2008 (UTC)
Quote:
"Fresh cold water introduced from the injectors is pre-heated by passage through the syphons before arriving at the crown sheet".
I don't agree with this statement. The feedwater will have been pre-heated (by being mixed with hot water in the boiler barrel) before it gets anywhere near the thermic syphons. The thermic syphons are not feedwater heaters, they are just part of the boiler heating surface. Please discuss. Biscuittin ( talk) 08:41, 3 April 2008 (UTC)
Locomotives with wide fireboxes often had arch tubes to support the brick arch. I've never seen an arch tube but I think it was a simplified version of a thermic syphon. Does anyone have more information? Biscuittin ( talk) 08:48, 3 April 2008 (UTC)
We should choose one spelling and use it throughout. Since most of the examples in the text relate to British applications, maybe the UK spelling should be used?-- Theodore Kloba ( talk) 19:13, 22 September 2010 (UTC)
I don't want to appear 'dense', but what in the picture of the Leader boiler are the thermic siphons? I think the caption needs a little more explanation, or the photo edited in some way to highlight them. -- EdJogg ( talk) 14:10, 24 September 2010 (UTC)
There's no explanation of just how these devices work. Is it that the heated and thus expanded water rises? Are bubbles and steam created? There doesn't seem to be a pump involved... Dan Griscom ( talk) 02:19, 26 October 2013 (UTC)
This article is rated Start-class on Wikipedia's
content assessment scale. It is of interest to the following WikiProjects: | |||||||||||||||||||||||||||||
|
I know this is only a small article, but it needs some additional explanation for non- 'rail nuts'. For example 'throat sheet', 'crown sheet'...huh? If there was ever an article that needed a diagram, this is it!
EdJogg 20:34, 15 November 2007 (UTC)
I have added some clarification. Biscuittin ( talk) 08:43, 3 April 2008 (UTC)
I've added an external link but it only shows a small part of the thermic syphon. I'll see what else I can find. Biscuittin ( talk) 16:40, 3 April 2008 (UTC)
Quote:
"Fresh cold water introduced from the injectors is pre-heated by passage through the syphons before arriving at the crown sheet".
I don't agree with this statement. The feedwater will have been pre-heated (by being mixed with hot water in the boiler barrel) before it gets anywhere near the thermic syphons. The thermic syphons are not feedwater heaters, they are just part of the boiler heating surface. Please discuss. Biscuittin ( talk) 08:41, 3 April 2008 (UTC)
Locomotives with wide fireboxes often had arch tubes to support the brick arch. I've never seen an arch tube but I think it was a simplified version of a thermic syphon. Does anyone have more information? Biscuittin ( talk) 08:48, 3 April 2008 (UTC)
We should choose one spelling and use it throughout. Since most of the examples in the text relate to British applications, maybe the UK spelling should be used?-- Theodore Kloba ( talk) 19:13, 22 September 2010 (UTC)
I don't want to appear 'dense', but what in the picture of the Leader boiler are the thermic siphons? I think the caption needs a little more explanation, or the photo edited in some way to highlight them. -- EdJogg ( talk) 14:10, 24 September 2010 (UTC)
There's no explanation of just how these devices work. Is it that the heated and thus expanded water rises? Are bubbles and steam created? There doesn't seem to be a pump involved... Dan Griscom ( talk) 02:19, 26 October 2013 (UTC)