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  • ALL ABOUT PENDULUMS - NAWCC Forums
    A basic pendulum consists of a weighted bob, and a stick, hanging from some suspension point The pendulum is the whole thing, because when we talk about "the mass (weight) of a pendulum", we're including the mass of the stick [BASIC PENDULUM] View attachment 183643 The period of a pendulum is the amount of time it takes to swing back and forth: from one side of its arc to the other, and back
  • Pendulum does not keep swinging - NAWCC Forums
    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 internal moving parts are free to move If the pendulum swings and there is no tic-toc sounds then the clock isn't running at all - the pendulum, for lack of a better word, is just
  • HOW A PENDULUM CLOCK WORKS - NAWCC Forums
    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
  • pendulum bob weight differences + thick head = (more) ?s
    For a pendulum, the farther the bob from the suspension spring, the more rotational inertia it has and the more force required to get it to move (or stop moving) Think about when you take the pendulum off and the crutch takes off on its own The escape wheel force is enough to overcome the inertia that is greatly reduced from the full pendulum
  • Junghans mantel clock: pendulum suspension (?) spring replacement
    One of my educational clocks is an early 20th century Junghans This is a pendulum clock with a five tone strike mechanism The pendulum suspension (assuming I have the term correct) appears damaged My first question is: is it damaged beyond repair? If so, how do I correctly describe it so that I can search around to find a suitable replacement?
  • Vienna Regulator Pendulum Rod Crooked, and not running with case level
    I know about the things you mention re what the pendulum swing has to do Here is a response I made to another member re the problem with the bracket that holds the movement and the case itself being "out of level" with each other The problem seems to be that the bracket that the movement slides into is not perfectly aligned with the case
  • Conical pendulums. doc - NAWCC Forums
    ABOUT CONICAL PENDULUMS conical pendulum isnʼt a pendulum shaped like a cone Itʼs a weight on the end of a string thatʼs swung in a circle from a suspension point so the string describes a conical path Unlike a swinging pendulum, its motion is continuous rather than in discrete back-and-forth bits
  • URGOS 32 PENDULUM LENGTH - NAWCC Forums
    The pendulum bob and stick are broken and the weights are missing I see some suggestions about the pendulum in this forum Any suggestions or recommendations where to purchase a replacement pendulum? How heavy should the weights be? I have the chains Any suggestions or recommendations where to purchase weights? Thank you! Butterworth has the
  • Needing info on how to rehang a pendulum | NAWCC Forums
    Hello! I inherited my grandmother's grandfather clock several years ago It has had to be moved 3 times and the last time the pendulum fell off and I can't figure out how to hang it again I can post photos if that would be of help Thanks!
  • Pendulum length - NAWCC Forums
    What is the normal procedure if the pendulum does not extend low enough? How would we extend it if its a threaded screw? Thanks Ron





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