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  1. Pendulum does not keep swinging - NAWCC Forums

    Jan 28, 2018 · Remember the clock movement powers the pendulum, the pendulum does not power the clock. The fact that the clock runs with the pendulum off indicates that all the …

  2. Catalog of 400 Day Torsion Clock Pendulums - NAWCC Forums

    Sep 6, 2021 · Latest update: Nov 3, 2025 This article is intended to provide a catalog of 400 day clock pendulums to fill in some of the omissions in the Horolovar Repair Guide and other …

  3. Pendulum weight - NAWCC Forums

    May 28, 2021 · Is there a specification for the pendulum weight of mantel clocks? I can't find anything in a search of the forums. I've accumulated weights ranging from < 2 oz to more than …

  4. Beat Setting 101 - NAWCC Forums

    Nov 21, 2011 · The pendulum passes back and forth across the beat-center in its progression from tick to tock and back. The clock is in beat when the beat-center is perfectly vertical: tick …

  5. fast/slow dial on mantel clock | NAWCC Forums

    Dec 15, 2012 · I am trying to get my Ingraham Adrian mantel clock that I got back from the clock repairman to keep accurate time. I have been adjusting the nut on the pendulum bob. I figure I …

  6. HOW A PENDULUM CLOCK WORKS - NAWCC Forums

    Jan 21, 2015 · The pendulum hangs from a flat suspension spring, and swings freely. But the rod or leader of the pendulum passes loosely through a loop in the end of the crutch.

  7. Pendulum weight | NAWCC Forums

    Mar 10, 2005 · The equation giving the period of a rod pendulum is different from that of a theoretical pendulum. So, the period differs depending on the relative weights of the rod and …

  8. Info on Flying Pendulum Clocks - NAWCC Forums

    Jan 5, 2017 · The "real" flying pendulum clocks were produced by New Haven in the 1880's and they were offered in nickel plated metal cased versions as well as wood cased one. In my …

  9. Westminster chime and pendulum - NAWCC Forums

    Nov 17, 2024 · As you can see in the picture, the pendulum is right in the middle of the hammers. The pendulum measures 86 cm and has a 14 cm stem on the movement. The chime is 57 cm …

  10. identification/age of Ingraham mantel clock... | NAWCC Forums

    Jul 25, 2005 · I was about to recommend the typical Ingraham mantel clock pendulum until I read the following - "The movement used is our heavy brass pendulum movement, which is well …