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Gustav Becker 400 Day Disc Pendulum

Les Sanders

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Apr 3, 2010
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I have not had one of these on my bench is a while. It has a .0033 suspension, seems to me it take a .004 or 0045? Nice condition the customer just wants it running and keeping time. How do you like my Goodwill Turn Table, its slick!

MVC-001L.JPG MVC-002L.JPG MVC-003L.JPG MVC-004L.JPG
 

whatgoesaround

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Jan 22, 2008
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Hello Les,
Your memory serves you well. My Beckers run well on .0004, but I have read on here of those that need a .0045 thinned to about a .0042 or so. Turn table was a useful find.
 

KurtinSA

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Nov 24, 2014
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Les -

What's the serial number? That will help with the dating. I agree that 0.004 is the more typical size. What is the weight of the pendulum? Mine run in the 13-14 oz range. I notice that your pendulum is higher above the base than most. Being higher, it will run fast but then a thinner spring would help compensate for that.

Kurt
 

KurtinSA

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Nov 24, 2014
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That makes it late 1904. I have several Beckers that are slightly before or after that date. The pendulums are essentially 14 oz plus or minus a few. 18 oz seems quite heavy which probably explains why the spring is so different. But I guess if it runs, it's good to go!!

Kurt
 

Dells

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Oct 18, 2019
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Hi Les
Your G B pendulum is the spitting image of my G B and I had to thin an 0045 .
Dell
 

Les Sanders

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Apr 3, 2010
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Thanks for the input I ran the clock for a couple of days quite slow but it seems to be good other wise.
I have thinned a few but if it was my clock I would just leave it alone.
 

Les Sanders

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Apr 3, 2010
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Well the reason it won't run is the anchor pin has been glued in and is on the verge of falling out, I thought these Pins were screwed in, any thoughts?
 

KurtinSA

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Nov 24, 2014
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I don't think all are screwed in. Some I believe are just pressed in...chamfered end into a conical shaped hole. To date, I've never tried to even take one out...I did break one out of the anchor...a Master 400-day...I ended up gluing it back in.

I'm not sure on how brittle the anchor pins are. I've heard Becker's might be. I had a bent anchor pin on a recent per WWII Kundo and I seemed to get away with simple bending while supporting the base of the pin.

Kurt
 
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Les Sanders

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Apr 3, 2010
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Well all back together, both hands turn together Cannon spring hour pipe minute pipe al in place should not be doing this deal. Help