Watchmakers or Jewellery tools - unknown

Discussion in 'Watch Repair' started by vanjuxa, Sep 11, 2017.

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  1. vanjuxa

    vanjuxa Registered User

    Mar 31, 2013
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    Hello my friends

    Who knows more about current tools - I cant understand how to use it as it's a vintage tools

    some pictures
     
  2. gmorse

    gmorse Registered User
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    Jan 7, 2011
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    Hi vanjuxa,

    The first two pictures look like a small arc welding machine, and the last two are of a refractometer, which is used for measuring refractive index of various materials, including gems with the aid of a liquid medium, and also salts in solution, (I've come across them in food processing factories, used for checking sugars in jam making lines), and nothing to do with horology, but useful in jewellery. There's mention of a Rayner instrument in this link.

    Regards,

    Graham
     
  3. vanjuxa

    vanjuxa Registered User

    Mar 31, 2013
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    Thank you gmorse :)
     
  4. MrRoundel

    MrRoundel Registered User
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    Dec 28, 2010
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    Dang, Graham, nice ID'ing! That's interesting about the refractive-index device. Even having been in the optical business for a few years, I never saw that one. Maybe they were hidden in the recesses of the lab somewhere?
     
  5. gmorse

    gmorse Registered User
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    Jan 7, 2011
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    Hi MrRoundel,

    In my youth I spent quite a lot of each working day squinting down one of these things in a food factory quality control lab. We used them to check the sugar content of jams and marmalades.

    Regards,

    Graham
     
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