Need help for Synchronome Masterclock with seconds contact

MarkusL

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Oct 8, 2018
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Hello everybody,
I got the advice to search for help in this forum. I live in Bavaria/Germany and some weeks ago I was able to buy the Synchronome Masterclock with the sn 2501. This clock was used as decoration in the last 40 years in a german clock manufactur. I try to "reanimate" it now - but I realized, that one important part is missing: the second-impulse-generator. It's impossible to get help inn german forums, because the clocks are not very "fancy" here in Germany. I'm deeply impressed about the precision of the old mechanic and the simplictiy of the idea. Perhaps somebody has an idea? (sorry for my bad english). I try to put some fotos of the clock to this thread and I found a low-res picture of the presumably missing part - but I'm not realy sure, that it is exactly looking like that. Sonce now I was also not able to get the Synchrnome-book from Mr. MIles that is talked about on some information-websites about Synchronome.
Best regards and many thanks, Markus

P1260387.JPG P1260388.JPG P1260392.JPG P1260401.JPG Sekundenmechanismus.jpg
 

JTD

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Sep 27, 2005
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Hallo Markus, welcome to the board.

I think your questions might get a better response if you had posted this in the 'Electric Horology' section, which is where most of the electric clock people are.

I think a moderator can move this for you if necessary.

Good luck with your restoration, it is always nice to see an old mechanism brought back to life.

JTD
 

MarkusL

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Oct 8, 2018
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Oh, sorry. I don't have any overview to the structure of the forum :-(
Maybe this would ba a good idea.
Thanks.
 

JTD

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Sep 27, 2005
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Don't worry too much - people will probably still reply, just not so many. And a moderator can move it for you also. [Edit: I see that your enquiry has already been moved over and is now in Electric Horology; thanks moderator]

To get an overview of the forum, you can go to the first page and there you will see the various sections, 'Clock Discussion', 'My newest Acquisition', 'Clock Repair', 'Electric Horology' etc. etc. The you just click on the heading you want and post your message there.

The book you mentioned is : MILES, Robert H., 'Synchronome: Masters of Electrical Timekeeping'. It was published in 2011 by the Antiquarian Horological Society, but it seems to be out of print, as it is no longer offered in their books section. You could send an enquiry to them at secretary@ahsoc.org

I have not been able to find a second hand copy to suggest to you, and although the book is held in several libraries in Britain, there is none in any German library as far as I can see.

There is a copy in the NAWCC library and if you are interested in any particular page(s), they might be able to make you a photocopy.

JTD
 

Edwardo

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Jun 18, 2006
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Welcome
That is a beautiful clock
Serial number 2501 makes the clock approximately 1937
I have attached a file to help you
I can't remember where I got it from but I hope it helps
I will look through my archive for more information this next week

synchro_power_wiring_dgm.jpg
 

MarkusL

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Oct 8, 2018
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Thanks for the "real" picture - perhaps somebody somewhere in UK or another interesting part of the world remebers, that he/she has this missing part for sale?:)
Or knows somebody who knows somebody ...
I'm waiting patiently ...
best regards
Markus
 

Peter

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Jan 28, 2010
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While the seconds transmitter would be nice to have, the clock will run without it. What you are missing is the wire with the gathering pallet that advances the count wheel. I will see if I have some more information.

-Pete
 

Edwardo

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Jun 18, 2006
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While the seconds transmitter would be nice to have, the clock will run without it. What you are missing is the wire with the gathering pallet that advances the count wheel. I will see if I have some more information.

-Pete
I think you will find that this clock uses a different slave movement in the pilot dial
that requires one second impulses
 

John UK

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Mar 25, 2006
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I think you will find that this clock uses a different slave movement in the pilot dial
that requires one second impulses
You may be OK. I have one with a sub dial for seconds like that. It uses two No 1 style (i.e. the small size) movements. The seconds sub dial has a 60 impulse per rotation movement and the minute and hour hands use a 120 impulse per (minute) rotation (i.e. a normal No 1 half minute movement).
 

MarkusL

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Oct 8, 2018
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Hello, sorry for my late reply - I was very busy the last days :-(
here are the photos from the backside of the dial. Maybe helpful for the specialists?
Since now I wasn't able to find the missing part ...

P1260631.JPG P1260636.JPG
 

MarkusL

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Oct 8, 2018
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and a photo of the complete wiring - I didn't solve the wiring-riddle till now....

P1260641.JPG
 

MarkusL

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Oct 8, 2018
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by the way - I do have the correct gethering pallet - but not assembled at the moment to avoid "accidents" while testing this and that ..
 

John UK

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Mar 25, 2006
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The movements on the back of the dial are similar to my clock. You will be able to run the half minute parts (hours and minute hands) whilst you try to find the seconds switch - which operates independently.
 

MarkusL

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Oct 8, 2018
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I already tried to activate it, but I think there is a electrcal short circuit somewhere in the wiring. A work for the quiet time before christmas ;-)
And still nobody out there in the world with an Idea where to get the missing part? Maybe somebody will have a look into his spare part boxes?
 

John Haine

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Feb 17, 2015
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I already tried to activate it, but I think there is a electrcal short circuit somewhere in the wiring. A work for the quiet time before christmas ;-)
And still nobody out there in the world with an Idea where to get the missing part? Maybe somebody will have a look into his spare part boxes?
Hello Markus, there is a specific forum for Synchronomes that has recently migrated here:

synchronome1 groups.io Group

You may have a better chance if you look there as the membership focuses on Synchronomes. Of course it wouldn't be original but it would be trivial to add the seconds functions with, for example, a little Hall Effect or opto sensor and a transistor.
 

MarkusL

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Oct 8, 2018
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Now I tried several times to join the new form - but I have not been successful till now. Confirmation mail doesn't work. No answer from heldesk. :-(
 

norman_heckenberg

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NAWCC Member
Sep 11, 2008
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Hello Markus,
A seconds counter will take a while to find. If you or a friend have any knowledge of electronics you could make an optical sensor to provide seconds pulses for the seconds dial movement. The original seconds counters are quite independent of the 30s impulses.
Norman
 

AlpineTime

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NAWCC Member
Jan 31, 2016
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And Markus, the second edition of the book Synchronome, Masters of Electrical Timekeeping is just out. I just got mine. Whether you still have an immediate need or not, it's a beautiful book and a wonderful resource for all things related to Synchronome. Everything you could need to know about the seconds generator is there, of course. Don't wait; the press run was only 300 copies, and more than half of them are gone. It's from the Antiquarian Horological Society. Get to their website, and you can order the book.

Regards,
Steve
 
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