Broken Tallcase Pinion Leaf - Advice Needed

Discussion in 'Clock Repair' started by David D'Apice, Sep 25, 2019.

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  1. David D'Apice

    David D'Apice Registered User
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    Mar 22, 2012
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    Good evening. Sadly, the English tallcase movement I'm playing with seems to have been hiding a pretty disappointing missing pinion leaf on the gear that trips the bell hammer -- I can see some porosity and crystallization --- perhaps the spring was made too strong on the hammer, and some backlash cracked this leaf free some time ago. (disappointing cartoon sound effect) ---- anyway -- does anyone have a good method of solving this, short of a complete re-cut, which is beyond my skill level. Any advice would be helpful. Thanks in advance.

    IMG_1166.jpg
     
  2. shutterbug

    shutterbug Moderator
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    Your best bet is to have one made for you. I often farm out that kind of repair to David LaBounty. He does great work at a reasonable price. I'm sure there are others capable of making a new arbor for you too.
     
  3. Jerry Kieffer

    Jerry Kieffer Registered User
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    There are three options that I can see.

    (1) If for preservation or value reasons, it can be repaired. In this case, a slot can be machined about half depth into the arbor and a new leaf blank silver soldered in place. The blank would then be machined to match the other leafs.

    (2) In some lucky cases, pinion wire is available in appropriate size requiring only that the arbor be machined.

    (3) Your most likely option will be to have a new pinion/arbor machined as mentioned by Shutterbug.

    Jerry Kieffer
     
  4. Uhralt

    Uhralt Registered User
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    Jerry,
    I never had luck finding pinion wire suitable for clocks. What I found was much too large and had the wrong tooth profiles. Is there a source for them still around?
    Uhralt
     
  5. David D'Apice

    David D'Apice Registered User
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    I will reach out to David LaBounty and see what he can do. Thanks for the insight!
     
  6. TEACLOCKS

    TEACLOCKS Registered User
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  7. bangster

    bangster Moderator
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    Can't go wrong with LaB.
     
  8. Uhralt

    Uhralt Registered User
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  9. Jerry Kieffer

    Jerry Kieffer Registered User
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    Uhralt
    As mentioned , its a get lucky thing, but one never knows.

    I generally google my exact needs, but when that fails to work my favorite source is the following link.
    Miniature Metric Gears - SDP/SI

    I generally call and discuss my needs. Very helpful people.

    Jerry Kieffer
     
  10. Uhralt

    Uhralt Registered User
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    Thank you Jerry!
    It's amazing what you can find when you know where to look! And the prices seem to be quite reasonable.

    Uhralt
     
  11. David D'Apice

    David D'Apice Registered User
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    You guys are the best ----- I didn't know any of these resources even existed --- you learn something new every day! Thank you so much.
     

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