THIS IS A NEW ONE ON ME

Jim_Miller

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Mar 6, 2001
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I was recently given a plate style metal wall clock to repair. The dial reads J.W. Siegl from Saltzburg. From what I can find, the movement was made by Jos(ef) Muhlhauser and is a time only and based on the spring it is a 8 day. Upon inspection, it appears whoever had their hands in this previously bushed both plates at the escape wheel. The problem is the pivot holes are not in line. I measured the distance of the center of the pivot hole to the side of the front plate with a mic and came up with 15.2mm. Measuring the same way on the rear plate, I came up with 15.33mm. The customer purchased this from an antique store so there is no known shop to go back to.

My question is, how do I go about re-centering the pivot holes so that the escape wheel runs true? The center shaft is also slightly bent, but my main concern is the escape wheel pivot holes. As shown in the attached pictures, there is not a lot of room to work with. Any help or guidance is greatly appreciated. As the title says, this is a new one on me.
Jim

Loosle (2).jpeg Loosle (3).jpeg Loosle (4).jpeg Loosle (5).jpeg Loosle 6.jpeg
 

Uhralt

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Sep 4, 2008
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I was recently given a plate style metal wall clock to repair. The dial reads J.W. Siegl from Saltzburg. From what I can find, the movement was made by Jos(ef) Muhlhauser and is a time only and based on the spring it is a 8 day. Upon inspection, it appears whoever had their hands in this previously bushed both plates at the escape wheel. The problem is the pivot holes are not in line. I measured the distance of the center of the pivot hole to the side of the front plate with a mic and came up with 15.2mm. Measuring the same way on the rear plate, I came up with 15.33mm. The customer purchased this from an antique store so there is no known shop to go back to.

My question is, how do I go about re-centering the pivot holes so that the escape wheel runs true? The center shaft is also slightly bent, but my main concern is the escape wheel pivot holes. As shown in the attached pictures, there is not a lot of room to work with. Any help or guidance is greatly appreciated. As the title says, this is a new one on me.
Jim

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I think the movement carries the logo of Japy Freres and was likely made by them. How sure are you that the escape wheel pivot holes have been bushed? For me it is not evident from the pictures and I don't know how close the specifications are for punching out the movement plates, so your measurements towards the plate edges may not be indicative that there is an alignment problem. I would address the center shaft problem first. Then I would check how the escapement is functioning. It seems that someone has worked on the eccentric bushing of the verge which is rarely a good idea. I had a similar movement made by Lenzkirch which had problems keeping running. There the issue was worn bushings in the mainspring barrel. Re-bushing the barrel and the barrel cap helped.

Uhralt
 

JimmyOz

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Feb 21, 2008
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Looking at the 3rd photo the back cock shaft looks like it is bent downward? if so, re-setting this to parallel may solve the issue.
 

Willie X

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Feb 9, 2008
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That tapered pin, that retains the click-wheel, needs to replaced with a close fitting soft steel 'S' wire. Willie X
 

shutterbug

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And that home made tension thing on the hour wheel looks like it's causing friction there too, and may be interfering with the minute wheel as well (first picture).
 

Jim_Miller

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Sorry for the delay in responding, lost internet access for a while. Thanks for the feedback, I’ll address the issues raised. My question still remains, however. If the pivot holes are out of line (on any clock), what would/could be done to bring them in line?
Thanks,
Jim
 

shutterbug

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You would need either a mill or a preacher to establish the placement from one plate so you could duplicate it on the other. You would likely need a depthing tool in order to determine which one was correct.
 

JTD

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Sep 27, 2005
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I think the movement carries the logo of Japy Freres and was likely made by them
I don't think this is a Japy logo or movement. The logo has an M with P K, standing for Mühlhauser & Pleskot, Karlstein.

The bottom plate on the movement also says M & Sohn. Karlstein.

So I think the OP is right in his identification.

JTD
 

Uhralt

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Sep 4, 2008
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I don't think this is a Japy logo or movement. The logo has an M with P K, standing for Mühlhauser & Pleskot, Karlstein.

The bottom plate on the movement also says M & Sohn. Karlstein.

So I think the OP is right in his identification.

JTD
Yes, obviously I didn't look close enough. The Japy Freres logo is similar in appearance and they made movements much like this one, so I fell for it...

Uhralt
 

JTD

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Sep 27, 2005
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Yes, obviously I didn't look close enough. The Japy Freres logo is similar in appearance and they made movements much like this one, so I fell for it...

Uhralt
Yes, they are very similar, both logo and movement. I first thought 'Japy Freres' too, until I looked closer.

JTD
 

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