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    400-day clock: Spring replacement

    I am replacing the spring on my 400-day clock. Can someone remind me..... the THINNER the spring the FASTER the clock, or is it the other way round? Thanks
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    Lovely 400-day Miniature

    The best I can do - am at the limit of focus
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    Lovely 400-day Miniature

    Sorry, of course that's the standard way - being a pin pallet got me a bit mixed up. The top screw it is.
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    Lovely 400-day Miniature

    I forgot: the period of rotation from left-right-left is 10seconds (rather than 15 seconds). Is this normal?
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    Lovely 400-day Miniature

    Just bought this lovely little pin-pallet miniature, whose I think is Plate 1406C (KS) in the Terwilliger 'bible'. The back plate measures 4.35 x 5.2mm and has the strange KS symbol, BUT no other name as in the Plate. Anyone know anything about this clock? Is it a Kern & Söhne clock...
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    400-day clock - ball pendulum problem

    Thanks Randy, Bob
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    400-day clock - ball pendulum problem

    http://www.youtube.com/watch?v=RAxbfH-o9GU Any ideas on this, the second problem?
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    400-day clock - ball pendulum problem

    Good idea, John, thanks Bob
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    400-day clock - ball pendulum problem

    I've just clicked on the link http://www.youtube.com/watch?v=RAxbfH-o9GU and it seems to work. Thanks all the same.
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    400-day clock - ball pendulum problem

    Have 2 more problems ..... 1. When I gently advance the minute hand, it gets harder and harder to turn - as though the nut on the screw shaft is tightening. I attach a photo of the shaft (without nut). - 2. I have a video of the escapement, where you would see (I hope!) that the...
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    400-day clock - ball pendulum problem

    Thanks. The clock is keeping such good time now (albeit nearly at the extreme slow end of the adjustment disc), that I don't want to fiddle around anymore - what a horror should one of the small arms should break after too much bending! I have just ordered 3 Horolovar springs at 1 thickness...
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    400-day clock - ball pendulum problem

    John, Also a (bad - taken too hastily!) close-up of the back-plate.
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    400-day clock - ball pendulum problem

    Yes, all the spheres contain lead balls. Excuse the quality of the photos! I seem to have temporarily fixed the problem, by being very naughty: you will see on the 4th photo, 2 red arrows representing application of pliers! I squeezed each of the 4 points with the pliers (narrowing the gap...
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    400-day clock - ball pendulum problem

    Thanks The weights are of lead, and there is no flutter. It is in beat. I am using a 0.091m Horolovar suspension spring. In Terwilliger's book, the back plate is Plate 1119. Is there any way I can get the 4 balls further out?
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    400-day clock - ball pendulum problem

    I have rotated the A<->R disc to the slowest position, but the clock is still too fast (10 minutes per hour!). It goes without saying that the pendulum is not the original. Any tips or tricks to solve this problem?

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