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Anyone familiar with pendulum clock mechanisms ?

Discussion in 'General Electronics Discussion' started by Externet, Jul 3, 2018.

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  1. Externet

    Externet

    751
    164
    Aug 24, 2009
    Hi.
    Trying to find if these common AA operated mechanisms are self-starting or need a first swing by hand to start.

    [​IMG]

    Or the pendulum mechanism alone :

    [​IMG]
     
    Last edited: Jul 3, 2018
  2. Bluejets

    Bluejets

    4,265
    907
    Oct 5, 2014
    Found this on another Ebay listing...........

    • For the swing clock with movement shaft 12mm (thread 5mm)

    • The pendulum is for decoration only and does not affect the clock movement's timekeeping

    • This pendulum clock movements will drive any light shape making them ideal for novelty clocks

    • Complete with removable hanger
     
  3. dave9

    dave9

    958
    250
    Mar 5, 2017
    Repaired one for my aunt recently. Yes it has to be started by hand to reliably start. If it is working and you don't do that, it might eventually gain enough momentum but I wouldn't trust that, swing it to one end of travel to see what happens next.
     
  4. Externet

    Externet

    751
    164
    Aug 24, 2009
    Thank you. Unreliable self-start... :( hmmm
    In need of oscillatory mechanisms, ordered a couple as they are cheap, and will evaluate when arrive. As will not need a pendulum, there may be enough push to self start. Will see.

    Did not find a AA operated mechanical metronome or something similar. Perhaps something else exists but cannot think of what could it be.
     
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