This is very interesting and I wonder if the capabilities of this system being applied to any clock pendulum. If this sort of control any pendulum, then I wonder if it's possible to sync it to some standard.
Steve On 08/08/2010, Don Mimlitch <donm...@yahoo.com> wrote: > Jim Said: >>It also has a coil mounted near the pendulum and a fixed magnet on the >>pendulum bar and this coil connects to a box down below with a meter >>and a knob. They are labeled in sec/day. The electronics in the box >>are not clear (being quite old) but by measuring the current in the >>coil it quite simply increases the current one way to slow the clock >>and the other way to speed it up. (I'll admit the physics of this >>doesn't make sense to me - but it works!) > > I have a Warren Telechron Master Clock used in Power Stations in the 20's to > regulate the 60 Cycle so that household clocks using synchronous motors > would be accurate to seconds a day. > > This clock has a similar permanent magnet at the end of the Pendulum and > a battery connected to a potentiometer to adjust the current flow positive > or negative in an electro-magnet below the pendulum.. > If the bottom of the magnet in the pendulum is "north" and the current in > the electromagnet is flowing such that its top face is North, then this will > repel the pendulum causing its swing to be wider and contrary to common > knowledge the swing of a fixed length pendulum is not constant regardless of > the swing. (Huygens discovered this in 1670 an found by forcing the arc of > the swing to be cycloid instead of circular he could produce uniform > oscillation) Thus if the arc is longer the swing takes more time and the > clock runs slower. > If the current flows in the opposite direction and the two magnets attract > then the arc is shortened and the clock runs faster. Of course my master > clock isn't as accurate as a Riefler pendulum clock. Also the magnet in my > clock has lost it's magnetism over time and I can't use this regulation. > > So the goal of your adaptation is to have precision control of the current > flow in the positive or negative direction. Others on the list are better > then me at describing how you might achieve this. > > > > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > -- Steve Rooke - ZL3TUV & G8KVD The only reason for time is so that everything doesn't happen at once. - Einstein _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.