Schatz ships bell clock striking out of sequence

scott nola

Registered User
Mar 23, 2020
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I have a single hammer Schatz ships bell clock that is striking out of sequence but not sure why. I am getting even strikes at top of hour and single strikes at half hour but is striking backwards, example it will strike the eight strikes at top of hour then next strike is 7 then 2 then 1 then 4 then 3 then 6 then 5. The rack is dropping correctly on the snail. I have tried repositioning the gather pallet but no difference. I have Steve Conovers book and followed best I could. Any thoughts.

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Ed O'Brien

NAWCC Member
Nov 30, 2009
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The strike counts you describe are confusing, and don't seem to make sense. Should be: 1 at first half, 2 at first hour, 3 at half, four at hour, 5 at half, 6 at hour, 7 at half then 8 at hour.
 

scott nola

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Mar 23, 2020
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Agreed I have no idea how it would be possible to strike in this sequence but it is. It’s almost like it striking backward.
 

Jeff T

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Feb 10, 2018
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looks like one that strikes out the change of watch or shift on a ship... I think its working correct
 

Wayne A

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Sep 24, 2019
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Looking at the snail its clear its not a standard strike pattern.
 

glenhead

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Nov 15, 2009
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I have a Schatz Royal Mariner with an original Schatz Number 39 movement. While it's a completely different movement I ran into a similar sequencing problem which guided me to find the answer for you.

Take a look at Figure 91 on page 82 of your Conover book, specifically at part number 20, the Strike Arresting Cam. That odd-shaped cam is what defines the top and bottom of the hour. Each of the steps on the snail allows two strikes, so the clock is actually striking 2-2, 4-4, 6-6, and 8-8. The high point on the Strike Arresting Cam stops the hammer from hitting the bell at the bottom of the hour, so the first half hour of the watch strikes one bell and the cam stops the bell ringing the second time (making a "ding-thunk" if you listen carefully), the top of the first hour the cam is out of the way so the bell is struck twice ("ding-ding"), etc.

On my Number 39 the Strike Arresting Cam is in a different place but serves the same purpose. I discovered that while the cam is a snug friction fit on the arbor it -will- turn with a bit of persuasion. The precise function of the cam on your clock is described in the big paragraph on page 81, but suffice it to say that your cam is backwards (or close to it) and needs to be turned to a different angle so the high point is active at the half hour and out of the way at the hour. Whether you can rotate it on its arbor or you have to decouple the wheel and rotate the wheel is for you to discover. :) Oh, and you'll have to mount your minute hand the other way around...

Hope this helps. Let us know, please.

Glen
 

Tim Orr

National Membership Chair
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Sep 27, 2008
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Good evening, Scott!

I agree wholeheartedly with Glen! I sometimes call that cam a "subtractor," because what it does is prevent the strike from going "ding-ding" on the half hour and giving only a "ding" as the last sound, even though the hammer lifts and falls twice, as on the top of the hour. If, however, that cam is functioning inconsistently, it may do its job sometimes and sometimes not.

At the half hour, the strike should always sort of sound like you're waiting for the other shoe to drop (because, in a way, you are). If it works intermittently, you'll get a strange assortment of counts that might sometimes sound like it is running backward.

At the top of the hour, there should always be an even number of strikes, never anything else: 2,4,6,8. At the half hour, the strikes should always be odd, never anything else: 1,3,5,7.

If it's any help, Chapter 8 has a recorded presentation by Nick Butt of Chelsea Clock Company on the striking system of Chelsea clocks. Here's the link to that. May not be your mechanism, but maybe will provide a clue: Video Conferencing, Web Conferencing, Webinars, Screen Sharing

Best regards!

Tim Orr
 

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