The world of model and hobby engineering

Subscribe
The Modelling Hub Logo

The world of model and hobby engineering

Subscribe
Buy Latest Issue

Forums

Help

Register

Log in

Longcase repeat – operating cord/string

Advert
New Replies
Report Bug
Help/FAQs

Longcase repeat – operating cord/string

Home › Forums › Clocks and Scientific Instruments › Longcase repeat – operating cord/string

Viewing 6 posts - 1 through 6 (of 6 total)
  • Author
    Posts
  • 26 February 2021 at 19:43 #3910
    Rob McSweeney
    Participant
      @robmcsweeney81205
      26 February 2021 at 19:43 #530401
      Rob McSweeney
      Participant
        @robmcsweeney81205

        On a longcase clock with repeat, where does the operating cord emerge? Does it hang down inside the case, or emerge from the side of the hood?

        On the movement I am currently working on, the hole in the little projection on the warning lever (does it have a name?) is tiny, less than 1mm, and I am wondering how a cord could be attached – was it a very thin but strong thread, such as silk, or would there have been a wire ring through the hole?

        Many thanks in anticipation, Rob.

        26 February 2021 at 20:14 #530412
        Roderick Jenkins
        Participant
          @roderickjenkins93242

          Perhaps gut is an option.  I believe it is sometimes used for fusees.  Available down to .45mm from the Early Music Shop **LINK**   Fretting gut is cheaper than the gut used for strings.

          HTH,

          Rod

          Edited By Roderick Jenkins on 26/02/2021 20:17:12

          26 February 2021 at 20:59 #530423
          Peter Cook 6
          Participant
            @petercook6

            Can't speak for a long case, but I have a Vienna wall clock with repeat. The repeat cord comes out through the side of the case, which makes sense as you would not want to open the case to activate the repeat (It would probably be dark).

            The "cord" on mine is heavy sewing thread 0.9mm dia. it is threaded through the lever and has a knot tied to stop it pulling through

            0.85mm thread has a break strength of 85lbs. If the repeat takes that much load you have other problems with the movement!

            Edited By Peter Cook 6 on 26/02/2021 21:07:39

            28 February 2021 at 12:46 #530720
            Rob McSweeney
            Participant
              @robmcsweeney81205

              Thank you Rod and Peter.

              Rob

              28 February 2021 at 12:58 #530721
              Nick Clarke 3
              Participant
                @nickclarke3
                Posted by Peter Cook 6 on 26/02/2021 20:59:56:

                0.85mm thread has a break strength of 85lbs. If the repeat takes that much load you have other problems with the movement!

                Edited By Peter Cook 6 on 26/02/2021 21:07:39

                I use this thread, but not in the clock context and the issue is wearing through rather than breaking, so I would try to ensure there is no movement where it passes through a metal arm or similar.

              • Author
                Posts
              Viewing 6 posts - 1 through 6 (of 6 total)
              • Please log in to reply to this topic. Registering is free and easy using the links on the menu at the top of this page.

              Latest Replies
              Report Bug
              Code of Conduct
              Help & FAQs
              Advert

              Latest Replies

              Home › Forums › Clocks and Scientific Instruments › Topics

              Viewing 25 topics - 1 through 25 (of 25 total)
              Viewing 25 topics - 1 through 25 (of 25 total)

              View full reply list.

              Advert

              Latest Issue

              Subscribe
              Buy Latest/Back Issues

              Newsletter Sign-up

              Latest Replies