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Hello.....I'm new here and need some advice about a pendulum

MC_Emily

Registered User
Mar 6, 2017
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Lincolnshire, England
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Hi everyone

I have an old (I guess 1930s/40s) mantle clock with full Westminster Chime. It's working fine but I've lost the pendulum. I've seen some similar looking ones for sale online but how do I know what weight I need, please?

Thank you for any advice :)

Emily
 

MartinM

Registered User
Jun 24, 2011
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El Dorado, CA
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Pictures of the clock will help identify what it is you'll need. Most important is a picture of the back of the clock, trying to include any numbers or other identifying details.
 

JTD

Registered User
Sep 27, 2005
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Welcome to the board.

Martin is right, we need to know more about the clock before we can help. However, I am curious as to how you lost the pendulum if it has been 'working fine'? Are you sure it is not lodged in a corner of the case - that happens more often than you might suppose.

JTD
 

Tinker Dwight

Registered User
Oct 11, 2010
13,666
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Calif. USA
Weight is not as critical as you'd first think. The length is the critical measurement.
That is what sets the rate.
If the bob is too light on a deadbeat escapement, it may stall.
A bob that is too heavy on a recoil may increase the friction enough
to stall the clock.
Often the clock will have a number on the back of the movement indicating
the pendulum length. The problem with these is one may not know from
where on the movement it is measured from.
Typically it is from the top of the suspension, the center shaft or the bottom
of the back plate.
In general, the pendulums are chosen such that they just have clearance from
the bottom of the case.
Bob shape and size can be a factor here as well.
Tinker Dwight
 

MC_Emily

Registered User
Mar 6, 2017
10
0
0
Lincolnshire, England
Country
Thank you so much for the replies. Good news.....I have found the pendulum!!! As suggested by JTD, it was jammed up inside the case! It is now up and running and sounding wonderful :)

I have other clocks, so I will be back with more questions soon :)
 

JTD

Registered User
Sep 27, 2005
10,963
1,545
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So glad you found the pendulum and you are enjoying your clock.

JTD
 

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