[time-nuts] Quartz assisted pendulum clock.

[Chuck Harris]

John Miles wrote:

>> I believe Big-Ben in the UK can be corrected by adding pennies to it, so
>> providing an upwards force. That is what I am told, but I must admit it
>> seems a bit unlikely. Perhaps possible if there are a lot of pennies
>> there. Apparently this is done, as it allows corrections without
>> stopping the clock.
> 
> Sounds like the same idea as the regulator weight tray on the GE master
> clock described on that Telechron site.  You're supposed to add/remove
> weights from the tray until the clock is running at the desired rate.

A pendulum swings at the same rate, regardless of its weight.  The controlling
feature is the length of the pendulum.

A balance wheel, is a different beast, because the weight of the wheel is
balanced against the tension of the spring.

-Chuck