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Thread: Old boiler

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  1. #1
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    Old boiler

    _MG_2352 by Doug Smyth, on Flickr
    Cheers Doug

  2. #2
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    Re: Old boiler

    I like this one Doug, I've done something similar with one from a locomotive. Gives you a insight into what a boilermaker welder had to construct.

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    Re: Old boiler

    Very nice shot!

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    Re: Old boiler

    it's got me intrigued - any wider shots?
    nikon abuser

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    Re: Old boiler

    Smart blokes those old boilermaker welders...

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    Re: Old boiler

    Wow, that's different.

    What are the numbers on it for?
    Craig
    Flickr

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    Re: Old boiler

    Quote Originally Posted by gcflora View Post
    Wow, that's different.

    What are the numbers on it for?
    To identify each individual tube. No 1 top left counting down and across. Would be for boiler inspectors in case of repair or replacement of tubes.

  8. #8
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    Re: Old boiler

    Quote Originally Posted by closei View Post
    To identify each individual tube. No 1 top left counting down and across. Would be for boiler inspectors in case of repair or replacement of tubes.
    Thanks!
    Craig
    Flickr

  9. #9
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    Re: Old boiler

    Quote Originally Posted by redeye View Post
    it's got me intrigued - any wider shots?
    Yes, but probably not worth sharing.
    It is what is behind that round hinged door at the front of steam loco boilers.
    Those holes would normally hold tube running through the boiler. The tubes pass the heat from the fire box forward to the smoke stack area. On the way the surface area of the tubes transfers the heat to the water in the boiler.
    It is an innovation probably first seen on Stevenson's Rocket back in 1829 and became the standard for boiler design for its greater heat transfer efficiency over a single big tube.
    Cheers Doug

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