Goal: $300, Received: $115.00 (38%) Contribute Now
Donate whatever you can or Join the 14,000 other NAWCC members for only $80 (plus $10 for hard copy publications). Check it out here.

Page 1 of 2 12 LastLast
Results 1 to 15 of 25
  1. #1

    Default Tall case clock stops

    This tall case clock runs well; however, when the weights are at the same level of the pendulum bob, it stops. The case does not have any movement. I am puzzled. please give input.

  2. #2
    Registered user.
    Join Date
    Jan 2016
    Location
    Pennsylvania
    Posts
    750

    Default Re: Tall case clock stops (By: pamacm)

    First make sure the weights aren't brushing the pendulum Bob. Also are you 110% positive the case isn't moving? There is this "bahavior" that occurs when the weights get to about that point. It causes the weights to seat a bit which then can cause problems with them rubbing the pendulum. This is a common problem on carpet is the case is not secured well enough

  3. #3
    Registered user.
    Join Date
    Dec 2011
    Location
    California
    Posts
    1,486

    Default Re: Tall case clock stops (By: Jasons34)

    Could be lots of things besides sway. The cables could be overlapped and/or bird nested. The cables could be so short you run out of length. There could be some sort of stop on the drums. There could be some sort of restraint on the weight pulleys (like an extra cable) to prevent the weights from falling and damaging the case if the main cable should break. The weights could be rubbing or bumping the pendulum.

    Lots of things. You need to investigate everything. Something is either robbing the power or interfering with the escapement/pendulum/suspension.

  4. #4
    Forums Administrator harold bain's Avatar
    Join Date
    Nov 2002
    Location
    Whitby, Ontario, Canada
    Posts
    39,644

    Default Re: Tall case clock stops (By: pamacm)

    Anchor the case to the wall and see if the problem goes away.
    harold bain, Member ch 33
    "If it won't "tick",
    let me "tock" to it"

  5. #5

    Default Re: Tall case clock stops (By: harold bain)

    Quote Originally Posted by harold bain View Post
    Anchor the case to the wall and see if the problem goes away.
    If it always stops when the weights and pendulum are the same length this is the first thing to do. (actually it's the first thing I do before I put the movement in)
    Nick, lots to learn, late starter.

  6. #6

    Default Re: Tall case clock stops (By: novicetimekeeper)

    The clock was running fine not attached to the wall. I changed the suspension spring to prevent wobble in the pendulum and the wobble has improved, but the clock stops when it reaches the level of the weights.The clock is in beat.

  7. #7

    Default Re: Tall case clock stops (By: pamacm)

    We have no idea where in the 350 odd years since longcase were first produced that this clock was made but if you can access the clicks you could try getting the weights below the pendulum and restarting to exclude sympathetic
    oscillation from the mix.

    (If you are going to do this I suggest removing the large weights and adding something just big enough to retain tension while carrying out this operation)
    Nick, lots to learn, late starter.

  8. #8
    Registered user.
    Join Date
    Jan 2016
    Location
    Pennsylvania
    Posts
    750

    Default Re: Tall case clock stops (By: novicetimekeeper)

    Ok so you get the weights to the same exact point each time before the clock stops. If you could remove the dial so you can examine the movement at that present time to see if the cable is in fact birds nested. Also what happens when you start it back up? No power? Slows to a stop? Does it go out of beat?

  9. #9

    Default Re: Tall case clock stops (By: Jasons34)

    The time has come for some pictures. Or just a clue as to the clock's identity.
    Nick, lots to learn, late starter.

  10. #10

    Default Re: Tall case clock stops (By: pamacm)

    Harold has the correct solution to the problem. What you have is sympathetic vibration. The pendulum causes the cabinet to rock slightly (usually too small to see) which in turn makes the weights start to swing. Eventually they will go circular, and hit the pendulum when it's in their vicinity. If you don't want to anchor it to the wall, try putting a block of wood between the case and the wall. That will hold the case steady, and the problem will disappear. If you can move it close to the wall so it leans against it, that will work too.
    A man with a clock always knows the time. A man with two clocks is never sure.

  11. #11

    Default Re: Tall case clock stops (By: novicetimekeeper)

    The clock is an 18 th century tall case with a nest of bells made by Robert Fleetwood. Once the pendulum and weights are not on the same level, it works fine. There is definitely a problem maybe sympathetic but why was it working fine for years and now there is a problem ? What other issues would cause the clock to stop ? The cables are fine as well as hands etc.

  12. #12

    Default Re: Tall case clock stops (By: pamacm)

    Just think yourself lucky it has survived this long in your care without being properly installed and get it fixed to the wall.

    Obviously something changed, but that doesn't really matter because it should be installed properly.

    It's very easy to do, just fit a batten to the wall so that you can screw the clock to that.
    Nick, lots to learn, late starter.

  13. #13

    Default Pendulum wobble (By: pamacm)

    With or without the crutch, which drives the pendulum, there is wobble at the attachment of the suspension spring to the pendulum rod. The spring is not bent or broken. I do not understand why it wobbles. This wobble , when the pendulum is at the same level as the weights,will stop the clock. There is no wobble in the case; it is secured to the wall with a foam pad. Please give me some input.

  14. #14
    Registered user.
    Join Date
    Jan 2016
    Location
    Pennsylvania
    Posts
    750

    Default Re: Pendulum wobble (By: pamacm)

    Is this an antique or modern clock?

  15. #15
    Registered User wow's Avatar
    Join Date
    Jun 2008
    Location
    Pineville, La. (central La.)
    Posts
    1,986

    Default Re: Pendulum wobble (By: Jasons34)

    Sounds like suspension spring is too thin. Try one a little stiffer or thicker.
    Will Walker (WOW)

Similar Threads

  1. Replies: 2
    Last Post: 10-23-2014, 12:36 PM
  2. Tall Case Clock Stops At 55 Minutes To Hour?
    By popeye in forum Clock Repair
    Replies: 6
    Last Post: 07-24-2006, 08:11 AM
  3. Unknown tall case clock
    By chasbaz in forum Clocks General.
    Replies: 0
    Last Post: 10-20-2005, 02:05 AM
  4. Waltham/Elliott Tall Case Clock
    By PEN in forum Clocks General.
    Replies: 2
    Last Post: 08-04-2005, 10:35 AM
  5. German tall case clock
    By DavidEFahrenholz in forum Clocks General.
    Replies: 0
    Last Post: 04-15-2004, 03:18 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •