Bulle Clock

Middlemarch

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May 2, 2021
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I have recently acquired a bulle clock and was wondering if it would be worth getting a bulle battery and hope that the clock works. I have enclosed photos of the mechanism to see if your expert advice could determine if there are any other parts that may be required. The serial number is 267636, which would date the clock to around 1924. Many thanks for your help.
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shutterbug

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I can't see what the balance wheel is attached to. Does the movement indicate the voltage required?
 

Middlemarch

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Thank you for your response, the only reference to the battery I can find is on the sticker underneath which states bulle battery no. 157? (maybe another digit).
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Jmeechie

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Greetings,
Bulle clocks run in a 1.5 volt battery. The only Bulle battery available is aftermarket look alike s that hold a battery.
You can try picking up a C cell battery holder off the internet or a local hobby shop and try connecting to the leads in the base. You’ll need to clean those contacts and just temporarily clamp a wire to each terminal, it doesn’t matter about polarity.
I will suspect your clock may need serviced to run properly. The silver contact pin is usually dirty and a culprit for non running.
These are great clocks and yours is certainly a cut above. I have about 6 of these clocks and love watching them.
Cheers,
James
 

Middlemarch

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May 2, 2021
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Greetings,
Bulle clocks run in 1.5 volt battery. The only Bulle battery available is aftermarket look alike s that hold a battery.
You can try picking up a C cell battery holder off the internet or a local hobby shop and try connecting to the leads in the base.
I will suspect your clock may need serviced to run properly. The silver contact pin is usually dirty and a culprit for non running.
These are great clocks and yours is certainly a cut above. I have about 6 of these clocks and love watching them.
Cheers,
James
Hi James,
Thank you for your advice, will give it a go as certainly yes I would absolutely love to see this clock up and running again if it's possible to fix.
Best regards - Sue
 

Willie X

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Feb 9, 2008
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Midd,
Do a search for your clock, or Google it, to find the voltage required and the coil resistance, so you can check it.
A regular "C" alkaline battery will work for many, Battery clocks usually require either 1.5 or 3 volts. If it takes 3 volts, you can make (or buy) a holder for 2 "C" batteries.
I'm saying "C" battery's because it appears you have room. Use a "D" size, if you can. Or, "AA" if you have to.
Look around on the "electric" forum. You will likely find the info you need there
Willie.X
 

Jmeechie

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Yours Doesn’t appear to have been messed with and appears complete which is a definite plus! The aftermarket Bulle battery holders are pricy and before taking that leap I’d certainly go the cheaper route if nothing else but for testing purposes. My suspicion is it was put away years ago when the replacement batteries became unavailable and has sat waiting on a return to life! One word of caution, take some paper and gently put it in the pendulum from both sides around the black magnet rod to prevent it from swinging too far to the sides while installing the battery. The isochronal spring as well as the suspension (cloth) are a bit delicate.
Good luck
 

Middlemarch

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May 2, 2021
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Midd,
Do a search for your clock, or Google it, to find the voltage required and the coil resistance, so you can check it.
A regular "C" alkaline battery will work for many, Battery clocks usually require either 1.5 or 3 volts. If it takes 3 volts, you can make (or buy) a holder for 2 "C" batteries.
I'm saying "C" battery's because it appears you have room. Use a "D" size, if you can. Or, "AA" if you have to.
Look around on the "electric" forum. You will likely find the info you need there
Willie.X
Brilliant! Here goes, will post back if I can successfully bring it back to life
Sue x
 

Middlemarch

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May 2, 2021
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Yours Doesn’t appear to have been messed with and appears complete which is a definite plus! The aftermarket Bulle battery holders are pricy and before taking that leap I’d certainly go the cheaper route if nothing else but for testing purposes. My suspicion is it was put away years ago when the replacement batteries became unavailable and has sat waiting on a return to life! One word of caution, take some paper and gently put it in the pendulum from both sides around the black magnet rod to prevent it from swinging too far to the sides while installing the battery. The isochronal spring as well as the suspension (cloth) are a bit delicate.
Good luck
I have noticed the very fine springs attached and am being very careful with moving it around. I am going to try and revive this old clock and will post if and when I do! I know nothing about clocks and the advice I have received is fantastic. Thank you for taking the time to respond to my enquiry
Sue x
 
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Jmeechie

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Here’s some helpful arrows of your pictures to help with what I posted earlier:
In the first picture this is the suspension and it is fabric as it insulates the pendulum.
In the second picture #1 is actually not a spring but rather a contact wire and is soft. It makes an electrical connection between the post and the frame. #2 is the isochronal spring. It compensates for temperature changes, modifying the arc of the pendulum swing.
Hope this helps.

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