Post Your Schlenker & Posner 400-Day Clocks Here

Dells

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Oct 18, 2019
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Best way to get clocks, two freebie’s one complete apart from spring guard ( they usually are ) and one missing dome and pendulum and of course spring guard, I think both are plate 1529 S und P but without any markings apart from serial number 9923 and 11899.
Dell 7994C385-8E03-4ABE-A0F1-FFAAE090C49B.jpeg DE3793AE-BC23-4D23-95DC-03211B6229B6.jpeg 761065CC-64C6-4F01-8802-E5B9EF4FE726.jpeg 49327666-F3EA-4087-B7BE-D370D07E0B22.jpeg 1EE92CEA-7E24-4AEA-B696-449A68FB3DBD.jpeg
 
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Dells

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Oct 18, 2019
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In the cotswolds UK
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Having to change the torsion spring on S und P again , book said .0032, updates on here said .0035 but to slow on fully fast so will have to change to .0036 or 37 .
 

Dells

NAWCC Member
Oct 18, 2019
901
226
43
In the cotswolds UK
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Region
Having to change the torsion spring on S und P again , book said .0032, updates on here said .0035 but to slow on fully fast so will have to change to .0036 or 37 .
Well none of the torsion springs above were good enough I ended up using a 0.004 very strange because the pendulum doesn’t look altered and looks original.
But keeping reasonably good time now.
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Roy Film

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Aug 13, 2022
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I just inherited my grandfather's Schlenker & Posner clock that he bought original. Great to have a family heirloom. I am trying to get it going. My uncle had it on a shelf for 50 years in California. He took the pendulum off in case of an earthquake. So I'm not sure if it works yet. The serial number is 12405 but I'm not sure of the model number. It has a round gold face with black numbers. Is anyone able to tell me the year of this clock? From watching John Hubby's video online, I know there were just over 40,000 Schlenker & Posner made. Interesting stuff! Does anyone know how many of this specific type of clock were made? And if there's anything I need to be careful of as I start working on it?

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KurtinSA

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Nov 24, 2014
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Welcome to the forum! Nice to see that you have kept this in the family. I have the exact same clock, although my dial is a bit darker than yours...yours shows very nice. Mine dates to 1929 but your clock serial number dates to the middle of 1930. From the SEPO catalog it would appear that your clock is Model 403B or the Toronto "B". I don't know if there's ever been any accounting of the exact numbers of each model...there were approaching a dozen models at least according to the catalog. John Hubby might have some further details in his collection of info about that, but can't say as I've seen those details. In the "bible" of 400-day restorations and history by Charles Terwilliger, we refer to as the repair guide, this clock is identified as plate 1505.

Have you tried to just hook up the pendulum, ensure that the spring is wound, and see if it will run? It likely needs service as the original oils could easily have dried up. You would need to take some precautions before starting to work on the clock. If you decide to dig deeper in case it doesn't run as-is, I would suggest that you start a specific thread out it in the 400-Day section of the forum so that we can contain all the specifics about your clock in one place.

Kurt
 
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Roy Film

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Aug 13, 2022
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Thanks for such a quick reply! And thanks for giving it a date and a model number - much appreciated. It doesn't appear to have a lock, but I can tell that the spring has been fully wound. Does yours have a lock? Perhaps I just don't know what to look for. It feels like there's a lot of tension in the mechanism. Not sure how many years it was in that state. Since I couldn't find a locking mechanism, I believe it would have wound itself down all the way. I followed instructions I saw for a Kundo clock on how to start it properly. It doesn't appear to be doing anything. I don't hear any ticking at all and the pendulum appears to be slowing down, only rotating 45 degrees or so before changing direction. If it looks like I'll need to work on it, I'll definitely follow your advice and start another thread. Thanks for any help or info you can offer!
 

KurtinSA

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Nov 24, 2014
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No lock on these clocks. Various locks were used over the years, but mostly they showed up later. Locks were used to secure the pendulum, not to lock the mechanism from winding down. To be honest, the mechanism on the back plate with the winding arbor and the ratchet wheel, that is essentially the mechanism lock. That bit of mechanism would "click" as you wind the arbor counter clockwise. But it sounds like it's already wound.

There is an anchor pin that sticks straight up with the tines of a fork that surround the pin. Assuming the clock is fully wound, you can try carefully moving that anchor pin side to side. It engages what's call an escape wheel, a wheel with very thin teeth that radiate around the edges. If you move that anchor pin back and forth and that escape wheel doesn't turn at all, then you certainly have some problems.

We'll look forward to your repair/overhaul thread and your questions when you get ready!

Kurt
 

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