
URGO'S 32 PENDULUM LENGTH - NAWCC Forums
Mar 27, 2025 · Stick pendulums are readily available and easy to adjust. You will have to do some looking around to find a lyre pendulum and modifications will be more difficult.
Catalog of 400 Day Torsion Clock Pendulums - NAWCC Forums
Sep 6, 2021 · Catalog of 400 Day Torsion Clock Pendulums 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 …
Broken pendulum - NAWCC Forums
Nov 29, 2024 · while trying to assess and fix the rubbing of the pendulum, I broke the wooden rod to a e Howard figure 8. I have looked on the time savers website but not sure what exactly I need to type in …
"R=A" label/decoration on pendulums - NAWCC Forums
Jul 18, 2021 · This apparently is such a basic question that the board's search function won't deign to help me, but what is the significance of the "R=A" seen on some wall clock pendulums?
French Gridiron Pendulum differences? - NAWCC Forums
Oct 4, 2024 · What's the significance, if any, of some early 19th century French gridiron pendulums having this extra steel component on the front? Some table regulators seem to lack this while others …
Seth Thomas 48S Pendulum's Mercury tube missing. - NAWCC Forums
Mar 14, 2025 · Just got this in yesterday. I have several questions regarding the missing glass mercury tube. The existing tube appears to have small bits of lead and is capped with a silver type metal cup …
Safety of Mercury in Pendulums - NAWCC Forums
Dec 15, 2002 · How safe are mercury pendulums used in large regulator clocks (jewelers regulators and standing floor regulators) ? Are the jars generally sealed ? If they are not fully sealed then it would …
Mercury pendulum - NAWCC Forums
Dec 16, 2025 · Leave them alone. These deposits are a sure sign of an old, real mercury pendulum. Most "mercury" pendulums you find are fake and have solid metal inserts. Uhralt
pendulum bob weight differences + thick head = (more) ?s
Mar 28, 2016 · Both pendulums were seconds pendulums, about 1 meter (39 in) long, with a period of 2 seconds; each swing of the master took exactly one second, with the slave's natural rate very slightly …
Does temperature affect pendulum clocks? | NAWCC Forums
Dec 5, 2004 · I do not heat my shop at night and was wondering if the nightly drop in temperature would affect the time on my pendulum type clocks?