french clock

[ajs]

I am working on a Japy countwheel strike movement with a missing suspension spring and some of the regulator adjusting parts. The regulator is not a Brocot or a Vallet type but a Duvoye type. Anyone have parts or photos/diagrams to assist in fabrication?

 

[LaBounty]

Hey Ajs-

All I could find on the Duvoye suspension was in "The French Marble Clock" by Nicolas Thorpe, pg. 89. There's no photo but here's what it says...

"The Duvoye suspension is in many respects a cross between a Brocot and a Vallet versions. The name 'Duvoye' appears on the adjusting wheel. I first saw it used on a Japy locking plate movement that was manufactured after 1880. Duvoye lodged a patent for a type of clock suspension in 1852."

It may be possible to find the original patent information based on the above information.

A Google search for "Duvoye" turned up some photos Here. They may not be detailed enough to help with your reconstruction but at least they are photos .

Hope that helps!

 

[Richard T.]

Hi David,

There seems to be a problem with your "here" link. It looks like the Seth Thomas Fly photo from a few days ago.....

Best,

Richard T.

 

[Scottie-TX]

I didn't edit anything, LAB; I was just looking at the URL.

 

[LaBounty]

How did that get in there? Oh well, all fixed now .

And thanks for checking me Scottie and Richard! You may edit my posts any time you feel it is necessary.

Regards,

 

[ajs]

Thank you David
ajs

 

[LaBounty]

Glad to help! Maybe someone with access to one of these will post some detailed photos of the individual parts so we can see how it works.

Regards,

 

[LaBounty]

Found one! Or at least an early version. It should help with the construction of the missing parts though. Note: The threaded portion passes up through the rating pinion and is reverse thread.

Here are some photos...









Hope that helps!

 

[laprade]

ajs,

have a look at this thread, it covers a similar story.



http://www.mb.nawcc.org/showthread.php?t=55702

 

[ajs]

David
Thank you that is the closest I've seen yet. I would love to see the original patent drawings.
Ajs