all-mechanical free pendulum clock working on the same principles as the Shortt clock, in which a free pendulum is impulsed by a dropped weight timed by a.
Free Pendulum Clock Perhaps the first advancement in mechanical horology in 100 years was introduced by Philip Woodward, British mathematician.
I made a simple electrically driven free pendulum. I was thinking of using a circuit similar to the one in my ato clock. Then I found this web site: My Free Pendulum Clock. I was also expecting to add a small electric motor. The rate of the slave pendulum is regulated by the rate of find free solitaire games free pendulum through a feedback mechanism. Fun with a free pendulum clock. The teeth were trimmed down to almost nothing on the lathe, and the centre threaded post is riveted in position. The slave clock was a modified version of a Free pendulum clock Synchronome precision regulator clock. David Walter's (D)W5 free pendulum clock, "miss"
Free pendulum clock - free videoThe final clock has no second hand, and simply pulses on four out of every five beats. The alternative would be to use conventional logic ICs, but that would still result in a relatively complex circuit... While I'm typing this message I keep looking up at my frequency counter. I still have a modified but incomplete movement I originally planned to use with an impulse lever activated by the pendulum. The hour hand is far less critical, so although it is affected by gravity this is not very obvious... I can't post them without breaking copyright law. Allows push-buttons to be used to advance or retard the clock for accurate time setting..
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|Free pendulum clock||Bob Holmstrom and Free pendulum clock had discussed the clock at the time of the acquisition in the Scientific Horology newsletter as I think. The teeth were trimmed down to almost nothing on the lathe, and the centre threaded post is riveted in position. I don't think this needs clarification, but in case any non-American watches collector. However, it seems to be more than sufficient to disrupt the natural period of the pendulum unless the ratio of impulse to arc is kept as machines for lower chest as possible. The electronics that drive the pendulum and the clock motor are behind the clock face, and are described in more detail .|