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  1. #16
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    So this is one of the grub screws that bisect a join between two of the main castings? What is their function?
    …..Live a Quiet Life & Work with your Hands

  2. #17
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    Dec 2013
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    Sydney
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    To keep the casting outer surfaces in planar alignment prior to bolting down?

    I have found a few of these grub screws in split threads on the Nuttall lathe and an old drill that I'm restoring, but they have been used to hold shafts into housings or bushes or pulleys onto shafts.

    Whereabouts on the machine are they used?

    Graham.

  3. #18
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    There is four of them on the machine from memory and they are in opposing pairs, ie same position on opposite side of machine.

    The base and front of the pillar is one piece and the rear taller pillar sits on the back of the base and butts up to the front. There is one on each side where the two halves of the pillar join. I wasn't the one to remove the other two so I have to find where they go.


    Sent from my iPhone using Tapatalk
    …..Live a Quiet Life & Work with your Hands

  4. #19
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    Dec 2013
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    Sydney
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    Are you certain that there is thread on both parts, and that they are not intended to bring the mating parts together like a taperlock hub works? Just a thought.

    They do look like registration screws to me though. If you've ever had to align parts close enough to get one of these suckers back in the thread then you'll appreciate how accurately they can be used to align parts.

    Graham.

  5. #20
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    Jul 2008
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    near Warragul, Victoria
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    Quote Originally Posted by kwijibo99 View Post
    made under contract to the US Army Air Force towards the end of WWII


    Greg.
    That would have been under the reverse Lend-Lease scheme. The Yanks supplied us with many things during WW2 and in return we supplied their forces in the SW Pacific with just about everything, vehicles , radios, uniforms, food and more. After the war ended, both the Aust. and US Govt. had to work out who owed who and what to do with the surplus equipment.

    More reading here

    Amazing USA/Australia Treaty 1946 - MLU FORUM

  6. #21
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    Jul 2008
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    near Warragul, Victoria
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