How To Repair A Sprung Music Box

• #1

Hello!

I got an quondam Junghans tabular array clock where the warning is a music box. The clock was in terrible condition and then was the comb of the music box. So when I institute a second one for cheap I got information technology, thinking I could at least make 1 working clock out of them.

The comb of the 2d ane also has missing teeth though. And they seem to be the ones with the added atomic number 82 too. And I'm unsure of which notes they should be... And so maybe I'll leave this ane alone, just still:

I'm looking for a way to repair these combs. I did detect some photos of a method consisting of grinding part of the old rummage abroad to receive a block into which the new teeth would be cutting with a cutting off disc of a dremel or the like. Problem is I think that soft soldering was part of that procedure. And apart from risking ruining the atmosphere of the comb, it would almost certainly melt the lead weights on the bass teeth.

Does anyone take suggestions for repairing a comb such as this?

Best regards
Karl

• #iii

No way will soldering help. As said higher up, these tin can be purchased or plant in donor movements.
I incertitude that replacing a comb volition damage the value of the clock. They were always unrepairable with replacement as the only option.

• #5

Whilst the repair books talk of soldering new teeth in I've never been able to practice information technology and take the tooth "ring" every bit it should.
More than of a dull "clunk".
So it looked the concern, but didn't work.
Soldering new tips onto the teeth of bigger music boxes was, however, a consummate success using staples from my workshop staple gun, and a Dremel slitting blade.

Ralph.

• #6

Cheers for the replies! I suppose a press fit would be the best option. Still, oestrus doesn't sit down well with me in these applications... Too much that could motion or change.

I recall the commodity I found showed something like this:

Apart from the not very reassuring use of the phrase "estrus soldering" This is what I had in listen.

Best regards
Karl

• #8

I agree that if you are going to solder it, do it with silver or fifty-fifty aureate.

• #9

Thank you for all the input!

I refrained from trying to repair the teeth in this case, partly because it seemed similar the teeth that were broken were chord tones that were also equipped with lead dampeners. I take no way of reproducingsuch teeth and would melt the lead if I tried to affix on a tooth that was dampened beforehand. As I understand it, the dampeners are cutting afterward the fact that they are bandage onto the teeth.
Then at that place is the fact that I don't know what tones I would exist trying to melody the teeth to. The comb does not play a scale.

I did however repair the frame of the music box rather sucessfully, information technology had split in one finish.

The movement of the clock is performing very well later on some much needed TLC. I have 2 issues with using this clock even so. The start is that I'm not certain of how I deactivate the alarm without letting the spring wind down (which is non an option in regards to girlfriend and neighbours...). It has a pretty rough setting mechanism for the alarm with a spring loaded, axial date that releases a catch equivalent to the warning wheel on a hit clock. The actuating part of the alarm set is a brass collar with a ramp and a drop. As the pivot that rides along the edge of the neckband reaches the drop, the collar lifts, releasing the railroad train for the alarm. There is a notch in the neckband at the halfway indicate betwixt ramp and drop, I'k suspecting this has something to do with the deactivation only so far, no luck. I idea I'd ask here earlier I rig some sort of lever into the clock, of my ain pattern...

The second problem is that it is an incredibly loud ticker. Any suggestions for dampening the volume of the tick? Perchance the combination of burnished pivots and PTFE grease on the mainspring has provided the motion with a trivial too much power to the residue? Fifty-fifty though the springs seemed to accept set a bit.

Whatever suggestions are welcome! I shall not be using information technology as an warning clock merely information technology would be nice to have it around. It looks pretty and the tune it plays is pretty catchy!

Best regards
Karl

• #11

Really loud ticking is usually the result of too much drop. Y'all may have to adjust that a flake.

Pin lever, not much to exist washed for the drop I'1000 afraid...

How To Repair A Sprung Music Box,

Source: https://mb.nawcc.org/threads/music-box-comb-repair.151049/

Posted by: gilmandulaying78.blogspot.com

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