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Recent content by Phil G4SPZ

  1. Phil G4SPZ

    Perivale/Bentima beat rate question

    Sorry Dick, I completely forgot to upload the pictures! Successive approximation is my rather flowery language for “trial and error”... simply adjusting the rating nut a bit at a time over a short period until the clock doesn’t gain or lose too much. As in this case, I frequently find myself...
  2. Phil G4SPZ

    Perivale/Bentima beat rate question

    Can anyone tell me the correct beat rate for this Bentima three-train mantle clock with English Perivale movement, please? By successive approximation I’ve arrived at 10,300 BPH but it would be nice to know the correct figure as I don’t have the luxury of a fortnight to spend on regulation! A...
  3. Phil G4SPZ

    Garryflex for polishing pivots

    I absolutely agree that burnishing serves a totally different purpose, and an abrasive will not restore a pivot where wear or damage is present. That’s not what I use Garryflex for; it’s just quicker and more effective than pithwood alone and improves the surface finish. Phil
  4. Phil G4SPZ

    Kern & Link standard, dial restoration advice

    Thanks for the tip, Dell. I do use white gloves, but I will pay special attention to any waxed areas.
  5. Phil G4SPZ

    Garryflex for polishing pivots

    Hi Mike, and hello again to you, Eberhard! I hope you’re both well. I recall back in my childhood that you could buy a hard, abrasive rubber that was designed to clean rust and tarnish off the surface of the rails of model railway layouts, to improve electrical contact with the locomotive...
  6. Phil G4SPZ

    Garryflex for polishing pivots

    Garryflex is a rubber compound impregnated with silicon carbide abrasive particles. The Museum, where I work as a volunteer horologist, use it for cleaning rust etc from cast iron and other artefacts, and they gave me a piece of the 240-grit material. A finer 320-grit version is available too...
  7. Phil G4SPZ

    Kern & Link standard, dial restoration advice

    Thanks, both! Any vestiges of lacquer on the plates and base had long since disappeared, and the brass responded well to conventional polishing. How to keep it looking shiny and prevent tarnishing is my next question. I have used liquid wax polish on brass before, with quite good results, but...
  8. Phil G4SPZ

    Kern & Link standard, dial restoration advice

    Just finished, going well and I’m chuffed to bits with the end result of 18 hours work. Phil
  9. Phil G4SPZ

    Kern & Link standard, dial restoration advice

    I have decided to replace the dial. The new dial has Roman rather than Arabic numerals. I will store the old dial carefully beneath the clock’s base, in case some future owner wishes to restore the original. Phil
  10. Phil G4SPZ

    Kern & Link standard, dial restoration advice

    Hi Dell, No, it’s a brass-coloured finish rather than silver. Difficult to capture in a photograph. I’ve tried very gentle cleaning with a moistened Q-tip but it had no effect. I think the surface has degraded, rather than simply being dirty. Not wishing to damage the dial, I think I will...
  11. Phil G4SPZ

    1954 M Reiner with odd hands, perhaps?

    Quick update. After it had been going for a couple of days I watched the escapement action for a while, and the EW teeth were tending to land at the transition between the entry pallet’s lock and impulse faces, causing jerky action of the fork. The eccentric slot was scratched, showing...
  12. Phil G4SPZ

    Kern & Link standard, dial restoration advice

    Carefully, then...
  13. Phil G4SPZ

    1954 M Reiner with odd hands, perhaps?

    Good idea. According to this thread https://mb.nawcc.org/threads/new-to-me-400-day-clock.173575/#lg=post-1412192&slide=2 the hands should be of a matching solid 'spade' design. Phil
  14. Phil G4SPZ

    1954 M Reiner with odd hands, perhaps?

    Kurt, you are absolutely spot-on! I thought it looked familiar. Here is a picture of the hands on my Kundo miniature, plus the circle-in-circle design on the hour hand of my 1952 synchronous Ferranti. I'm now pretty sure the Reiner's hands have been swapped. A bit of a mix-and-match. It...
  15. Phil G4SPZ

    Kern & Link standard, dial restoration advice

    I was very lucky to have been given this 1932 Kern & Link plate 1667 standard 400-day clock. It's the early model, having no pendulum locking mechanism or levelling adjusters. Apart from being very dirty, it is complete apart from its missing dome, and I am just embarking on restoring it. The...
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