Mystery tool

Discussion in 'Horological Tools' started by Dave Coatsworth, Dec 3, 2016.

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  1. Dave Coatsworth

    Dave Coatsworth Forums Administrator
    NAWCC Business Sponsor

    Feb 11, 2005
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    Here's one I've never seen before. Any ideas?

    2PieceTool-1.jpg 2PieceTool-2.jpg
     
  2. dAz57

    dAz57 Registered User

    Dec 7, 2011
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    Helical spring winder?
     
  3. praezis

    praezis Registered User

    Feb 11, 2008
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    A tool to bend the knee at the starting point of a Breguet coil.

    Frank
     
  4. Dave Coatsworth

    Dave Coatsworth Forums Administrator
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    Feb 11, 2005
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    Thank you, Frank. Do you happen to know of a reference that describes its use? I'm having a bit of trouble visualizing how to use it properly.
     
  5. praezis

    praezis Registered User

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    It is mentioned in a German book: Schultz, Der Uhrmacher am Werktisch. I have acces tomorrow and will make a picture.
    AFAIK you lay the blade flat in the gap between arbor and pins, press both assembled parts together and turn.
    Frank
     
  6. praezis

    praezis Registered User

    Feb 11, 2008
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    Here come the pictures of the mentioned book:

    Breguet1.jpg Breguet2.jpg Breguet3.jpg

    Frank
     
  7. Dave Coatsworth

    Dave Coatsworth Forums Administrator
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    Thank you very much, Frank. Now I understand.
     

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