Lyre Pendulum Rods

rudiedog

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Nov 12, 2013
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Greetings to one and all,

I have a large bob for a grandfather clock and it is missing the rods and neck. I have looked online for parts but can only find complete lyre pendulums. Does anyone here know where I can find the rest on the parts to makes this 10 1/2" bob work on my 94cm movement?


Thanks! :)
 

wow

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Jun 24, 2008
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Welcome, Rudiedog,
Timesavers has some lyre pendulum parts. You may be better off buying a complete pendulum. They have those too. Merritts antiques may have them too.

Will
 

Willie X

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Feb 9, 2008
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I agree with Wow.

It would be very difficult to find the right parts, mainly because these things are made in batches (large and small) and very few of the parts are interchangeable.

It would be much easier and better to simply buy a new on, or at least a complete on. You will need to shop for at least three things: bob size, movement specified length (the actual length will be much longer), and the movement maker, Basically the makers will be Hermle, Kieninger. or Urgos. The hooks are very different and not interchangeable. On this last point you can usually fab up a hook if necessary. Usually not to difficult to shorten a 114cm to work on a 94cm movement.

Good luck, Willie X
 

rudiedog

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Nov 12, 2013
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Do tell of this shortening that you speak of. I was wondering if it could be done. I am a handy person and had ideas, but not tested and proven remedies that you may know of. Do you shorten the rods, the leader or what? What should the finished length be? 35-43 inches is what my research shows depending on diameter.
 

Willie X

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Feb 9, 2008
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First thing, forget the measurements. You can keep the measurements in mind but always assume they are just a very rough guideline and think longer. The top of the pendulum's top piece is the usual place to shorten a to long pendulum. On many modern lyre pendulums, the top piece for a 114 will be about 4 or 5 inches longer than the 94, the bob and the lyre pare will be identical. Just a matter of moving, or remaking, the hook will convert a 114 - 116 to a 94 - 95. The best way to determine the exact length is to make a temporary hook and attach it with tape or wire. This way you can make actual "real world" adjustments. I always take an extra step and make the first cut-off about 1/2" long and retest everything, making sure the adjustment nut has plenty of range, before making the final cut and hook replacement.

Yes you can change the movement's leader length, but this is not usually practical on this type clock.

Willie X
 

rudiedog

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Nov 12, 2013
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Thanks!!! You have no idea how valuable that info is to me. I am new at clock repair, and need all the help I can get. :)
 

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