Seth Thomas Unusual Seth Thomas Type 86 movement

Discussion in 'General Clock Discussions' started by kcookapex, Sep 27, 2019.

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  1. kcookapex

    kcookapex Registered User
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    Jun 8, 2009
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    Hi all,
    I recently found this Unusual Seth Thomas Type 86 movement and I was wondering if anyone on this board could give me any information on it. It has been suggested to me that it may have been used to run multiple faces. It has a long pendulum in the neighborhood of a 34"-35" working length. I have added 6 photos - I hope they are viewable. Any information would be greatly appreciated.

    IMG_4091 (2).JPG IMG_4092 (2).JPG IMG_4093 (2).JPG IMG_4094 (2).JPG IMG_4095.JPG IMG_4096 (2).JPG
     
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  2. THTanner

    THTanner Registered User
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    Multiple dials is certainly a good guess. This would be three dials, but a fourth dial could easily be driven by a wheel meshed with the side dial gear on the back of the movement. That would make a fine four dial tower clock
     
  3. Uhralt

    Uhralt Registered User
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    I assume it's a weight driven movement. The distance between the additional two extensions suggests that it would be too small for a tower clock. I could imagine a kind of grandfather clock, mounted with the back to a wall and having three dials. One in front and one each at the sides.

    Uhralt
     
  4. gleber

    gleber Registered User

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    I don't get how hands would be attached? It looks like there were vertical shafts that went through the holes in the brackets above the side wheels and had a horizontal wheel that meshed with these these side wheels. They would mesh like the gears in photo #4, in which the larger gear has the same kind of teeth as the side wheels (chisel-like instead of round pins). That would allow for rotation about the vertical axis, sort of like dancers on a cuckoo platform. But I don't think dancers, more like a master clock maybe? Or calendar function?

    So, we have two vertical arbors, one on each side of the clock... With a rotation rate that looks to be about the same as the minute hand (+/-)... Interesting puzzle.

    Tom
     
  5. Kevin W.

    Kevin W. Registered User
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    Pretty sure i can see a main spring. Interesting movement.
     
  6. bruce linde

    bruce linde Technical Admin
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    definitely mainsprings... so there would be motion works out to the sides? interesting...
     
  7. Uhralt

    Uhralt Registered User
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    I wasn't sure. I could also be the chainwheel.
    Uhralt
     
  8. kcookapex

    kcookapex Registered User
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    It is double spring driven.
     
  9. Uhralt

    Uhralt Registered User
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    Thanks for the clarification. I wasn't sure what I was seeing.

    Uhralt
     
  10. bruce linde

    bruce linde Technical Admin
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    I meant to post a photo of the movement that I lightened up in Photoshop so I could actually see the springs… But forgot. Sorry!
     
  11. bruce linde

    bruce linde Technical Admin
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  12. Uhralt

    Uhralt Registered User
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    Ah, thanks! Now I can see the coils.

    Uhralt
     
  13. RAK

    RAK Registered User
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    Hi kcookapex,

    I'm going to throw a long shot out there. I think it might be the movement for a TYPE 2 Sidney Advertising Clock. I have never see the movement for one of them but when one sold through R.O. Schmitt many years ago the description of the movement was that it had little nails stuck in gears that drove the two advertising columns. The person who would know is Russ Oschele (sorry if I murdered the spelling). Russ' Webinar presentation (available here on the NAWCC website) on Sidney Clocks is the gold standard on the subject and he has photos of the early and late TYPE 2 clocks (extraordinarily rare). I don't have Russ' email available, but I think he would find this discussion interesting.

    Well, it is at least a possibility.

    Bob
     
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  14. senhalls

    senhalls Registered User

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    RAK has pinpointed the movement exactly. There were variations in the Sidney movements. A great ID RAK !
     
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  15. kcookapex

    kcookapex Registered User
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    Thank you for posting this. It was very informative and seeing the exact movement certainly made my day.
     
  16. kcookapex

    kcookapex Registered User
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    Thank you for your post. I watched the video below. You nailed it!
     
  17. kcookapex

    kcookapex Registered User
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    Thank you for lightening up the photos Bruce.
     
  18. RAK

    RAK Registered User
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    kcookapex,

    There was a post about a year ago from a person who found an Early Sidney Type 2 case in a barn. The thread was "Barn Find - Unusual Clock Case". I don't know if your movement is for an early or late case and if there was a difference in the movements or not. If they are a match and if you were looking to sell your movement or if he wanted to sell his case one of you could have a start on putting one of these really rare clocks back together.

    Just thinking out loud,

    Bob
     
  19. stopped ticking

    stopped ticking Registered User
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    Hello All!.....I'm the guy with that Strait Automatic Advertising Clock 2nd patent case. Original patent was the Sidney Advertising Clock with 3 rotating cylinders. Movement was bought on ebay and given to me through the generosity of a good friend. Never thought in my wildest dreams this movement would show up. So now I have a start to put this clock back as a running time piece. So the hunt will be for machining of the gears and the fabrication of the triangle shaped columns to hold the advertising cards. Wouldn't it be great if original advertising cards showed up at one of our local auctions or sales, since I live close to the Weir's printing office. I understand the real value would be original advertising....who knows what might show up?

    sidney clock case.jpg
     
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