Catalog of 400 Day Torsion Clock Pendulums - NAWCC Forums 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 Horolovar Repair Guide and other references It will attempt cover as many of the different variations from each manufacturer as examples have been discovered
New England Clock Co wall Clock needs pendulum | NAWCC Forums It did have the weights, but none of my extra Pendulums worked and I am having a hard time getting a match out of catologs on line Probably I dont completely know waht I am looking for It appears that a 8" drop and bob shoud do it This clock has a crutch leader set up that looks as if needs a specifally matched pendulum
Compensated pendulums - NAWCC Forums Mercury compensating pendulums contain one or more glass or metal flasks partially-filled with mercury as counterweight When the mercury expands, it moves up inside the flask (s), counteracting the lengthening of the iron pendulum rod I believe such pendulums were designed to be used in true regulator clocks
Meaning of RA on German pendulums - NAWCC Forums Hi, everyone, I'm sittin here in Colorado's only clock repair class and a couple of us are wondering what RA stands for? I'm sure someone out there knows, it's a question that has come up before Thanks!
Pendulum Length - How to Measure | NAWCC Forums I am a little confused Sometimes I see a grandfather movement marked with pendulum length and the pendulum itself matches the length Some pendulum boxes are marked with a pendulum length and it matches the length of the pendulum inside However, this may not be the case OR may not always be
Broken pendulum - NAWCC Forums 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 or ask for Need the whole assembly with the hinge and all if possible to avoid having it to remove
Correct Pendulum Weight - NAWCC Forums The more that I work on this E N WELCH eight day weight driven movement the more I am convinced that little of the components are original So far, The dial, hands, weights and suspension rod have been found to be incorrect for the movement Now, I’m wondering about the pendulum The one that
ibm itr pendulum. . . . mercury? - NAWCC Forums i have a 1935 ibm itr 17-7 master clock with this pendulum i was trying to look up how much it weighed (so i didn't have to take the clock apart) and came upon this original ibm itr doc that seems to say this is a mercury pendulum is it?
old urgos help (pendulum length) - NAWCC Forums These all had large (10 1 2") lyre pendulums and they made 3 different lengths You may be able to order one that is made to fit an Urgos movement but most likely you will have to order any one second (10 1 2") lyre pendulum and modify the length and hook for your movement