Waterbury Porcelain clock speeds up.

Kevin W.

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Apr 11, 2002
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My Waterbury porcelain clock with the open escapement speeds up towards the end of the week.
Would this be a indication of the wrong size of main spring.
I have not serviced this clock.
I try to regulate and after 5 days it will gain by maybe 4 minutes in a day. After i re wind fully it starts to keep better time, then later in the week speeds up.
Thanks for your thoughts on this.
 

Randy Beckett

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May 23, 2012
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It sounds like a case where the escapement is very slightly out of adjustment, with the escape wheel dropping just slightly on the impulse face, rather than the lock face, which the effect would be amplified as the swing diminished, as the spring ran down and weakened.
 

Willie X

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Feb 9, 2008
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Kev.

Will your clock run for 8 to 10 days on a wind?

Power loss can actually cause a clock to run faster. You may have a spring that is to short, or to strong.

As RB already mentioned. The pallets might be to shallow. This maladjustment is often a lame attempt to make a clock run, without repairing the 'power loss' problems.

Good luck, Willie X
 

Kevin W.

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Apr 11, 2002
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Yes it will run 8 to 10 days. I was thinking too strong a m spring as well.
It sounds good on the amplifier, Time Trax.
Not sure i want to mess with the jewelled pallets. as i dont see a adjustment.
 

Randy Beckett

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May 23, 2012
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Has it always done it, or just started recently? Worn pivot bushings on the anchor arbor or EW arbor, or both, might cause it even though the clock might still run strong.
 

Kevin W.

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Randy i have only had it for about 4 months, always did it this long.
I think a clean and oil and perhaps bushings is likely in order for the clock. And after that see if it still behaves the same.
 

Randy Beckett

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May 23, 2012
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Since you are taking it down anyway, longer and weaker springs probably would make it behave better.
 

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