The escapement wheel needs to have a little torque on it so it will turn as
the pendulum swings.
Regards.
Max. K 4 O DS.
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----- Original Message -----
From: "Hal Murray" <hmur...@megapathdsl.net>
To: "Discussion of precise time and frequency measurement"
<time-nuts@febo.com>
Cc: <hmur...@megapathdsl.net>
Sent: Friday, January 31, 2014 12:49 PM
Subject: Re: [time-nuts] The pendulum problem...
wa1...@att.net said:
I think the best I can do is to use the basic design from the article
that
David noted and will have to adjust the clock once a week after winding.
How far off does it drift while you are winding?
I haven't wound a pendulum clock since watching my grandfather (and maybe
helping) when I was a small child. I think it was basically lift the
weight
with one hand and pull down gently on the other end of the chain with the
other hand. I assume there was ratchet in there.
Is that the way your clock works? Can you "wind" it a little bit while
the
pendulum is swinging and then let go so the weight does its thing when the
pendulum gets to the end? Repeat ...
------
I assume you are familiar with the Scientific American article from many
years ago. They put a magnet on the pendulum and used that to kick the
pendulum at the right time. As well as keeping good time, it also
supplied
power so you didn't have to wind it.
--
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