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Topic Review (Newest First)

  • 05-11-2019, 19:22
    29stude
    Quote Originally Posted by NMNeil View Post

    Cheers
  • 04-11-2019, 18:02
    NMNeil
  • 04-11-2019, 14:48
    mygasser
    Quote Originally Posted by 29stude View Post
    Neil,
    I did consider that initially. But at this point, I just can't bring myself to wreck something that's so beautifully engineered. (Never get anything made close to this quality nowadays).

    However it might come to that later if nothing else works.

    Gav.
    It would be free too which is a cost I'm always happy with.
    Neil.
  • 04-11-2019, 12:54
    29stude
    Quote Originally Posted by mygasser View Post
    if it's just going to be a light stand why not 'grind' all but 1 1/2 turns of thread of of either the stand pipe or nut so they push together all but the 1 1/2 turns they currently do then screw on the rest of the thread? for what you need that'd work well.
    neil.
    Neil,
    I did consider that initially. But at this point, I just can't bring myself to wreck something that's so beautifully engineered. (Never get anything made close to this quality nowadays).

    However it might come to that later if nothing else works.

    Gav.
  • 04-11-2019, 12:49
    29stude
    Quote Originally Posted by Torment View Post
    try the rail heritage centre near you..
    Hadn't thought of them, only 5 mins away as well cheers





    Quote Originally Posted by drseg View Post

    a friend involved in a very old steam roller pointed out all nuts bolts and threaded holes were numbered as threads were not standardised when it was built so each pair of threads were matched to each other maybe you have this type of problem?
    drseg: I did consider they might be unique, but believe FS stand pipes had some degree of standardisation in this era.



    Quote Originally Posted by NMNeil View Post
    A long shot, but perhaps a trip to the local fire station. They may be able to see if the threads are still used on current equipment, and they may give you a contact at whoever supplies their hoses.
    Already tried that route Neil, Unfortunately modern Fire service stuff is different.
  • 03-11-2019, 23:20
    mygasser
    if it's just going to be a light stand why not 'grind' all but 1 1/2 turns of thread of of either the stand pipe or nut so they push together all but the 1 1/2 turns they currently do then screw on the rest of the thread? for what you need that'd work well.
    neil.
  • 03-11-2019, 17:16
    NMNeil
    A long shot, but perhaps a trip to the local fire station. They may be able to see if the threads are still used on current equipment, and they may give you a contact at whoever supplies their hoses.
  • 03-11-2019, 15:14
    drseg
    used to be involved in engineering and company were making hub nuts for Rubery Owen artic trailers pressed with 600 tonne press bored then threade4d with a cri dan threading machine li8ke a lathe but had a thread cutting tool which moved at a set rate inside the nut, not like a tap which touches all of the inside of the nut just one side of the inside of the nut, these nuts had a bore of about 4". if not done and set up correctly the thread could be too tight or loose on the hub, we used go or no go testing tools to check they were within tolerance at the machining stage and after heat treatment.

    a friend involved in a very old steam roller pointed out all nuts bolts and threaded holes were numbered as threads were not standardised when it was built so each pair of threads were matched to each other maybe you have this type of problem?
  • 03-11-2019, 10:16
    Torment
    try the rail heritage centre near you..
  • 03-11-2019, 08:44
    29stude
    Quote Originally Posted by cymrodder View Post
    Quote Originally Posted by NMNeil View Post
    Threads that size were probably cut on a lathe. So they may not be standard sizes.


    Thanks for suggestions chaps

    I’ve not resolved problem yet, there are a couple of local firms that deal with ex-engineering stock, so thinking of taking parts to them and find compatible tap/die.
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