Jump to content

Carriage escapment mecanism problem

AF10
 Share

Recommended Posts

AF10 Member

AF10

Posted
  • Author
Posted
23 minutes ago, RichardHarris123 said:

Is it from a clock, since you said carriage?  It's a cylinder escape wheel and the broken part is the pivot. We would need to know the caliber to find a replacement. 

Thanks,  it's from an old carriage clock, but I don't see any number that can identify the caliber. Should I measure it, in mm?

Link to comment
Share on other sites
watchweasol Distinguished Member

watchweasol

Posted
Posted

Hi it’s as said by Richard broken pivot, getting a replacement might be difficult as the escape wheels can be of different lengths, the alternatives are re pivoting the one you have or replacing the platform complete which may require you to re drill the plates to accommodate the new one.  Can you supply pictures of the clock and also the platform. Also are the balance pivots ok, if not a whole new ball game.

  • Like 1
Link to comment
Share on other sites
RichardHarris123 Distinguished Member

RichardHarris123

Posted
Posted
1 minute ago, watchweasol said:

Hi it’s as said by Richard broken pivot, getting a replacement might be difficult as the escape wheels can be of different lengths, the alternatives are re pivoting the one you have or replacing the platform complete which may require you to re drill the plates to accommodate the new one.  Can you supply pictures of the clock and also the platform. Also are the balance pivots ok, if not a whole new ball game.

Haha, posting at the same time. 

Link to comment
Share on other sites
AF10 Member

AF10

Posted
  • Author
Posted (edited)

Some images...

20231010_213711.jpg

20231010_213821.jpg

20231010_213914.jpg

20231010_213953.jpg

20231010_213510.jpg

20231010_213444.jpg

20231010_213425.jpg

20231010_213401.jpg

20231010_213339.jpg

20231010_213127.jpg

20231010_214830.jpg

35 minutes ago, RichardHarris123 said:

Post pictures of the movement, someone on here may be able help with identification. 

Done!

38 minutes ago, watchweasol said:

Hi it’s as said by Richard broken pivot, getting a replacement might be difficult as the escape wheels can be of different lengths, the alternatives are re pivoting the one you have or replacing the platform complete which may require you to re drill the plates to accommodate the new one.  Can you supply pictures of the clock and also the platform. Also are the balance pivots ok, if not a whole new ball game.

Done!

Edited by AF10
Link to comment
Share on other sites
watchweasol Distinguished Member

watchweasol

Posted
Posted

Hi. Judging from the pictures it’s in filthy condition but nothing that can’t be rectified by cleaning etc.  the balance needs checking as the condition of the spring does not look good. These were steel springs and suffered rust spots. If a compatible cylinder platform can’t be found the alternative is a relatively modern lever escapement, they are not a cheap option.   With no markings difficult to date probably late 30s. Early 40s  . No point repivoting if the balance is no good.

  • Like 2
Link to comment
Share on other sites
oldhippy Distinguished Member

oldhippy

Posted
Posted

You won't find a cal number on those types of clocks with a cylinder escapement. Your best bet is to find a replacement complete platform, you will need the wheel count and the length of the escape wheel, the width and length of the platform. As already been pointed out it is in a terrible condition, having an alarm is a bonus, have you got the dial and what condition is that in? Also the bell which fits under the base. I only see the alarm hand what about the minute and hour hands. How is the case is it complete with the glass panels if not they are very expensive to replace. One last thing the replacement platform look on ebay there are normally quite  few about. Make sure that the cylinder and hairspring are in good condition a worn cylinder and the clock will not work well if at all.  

  • Like 3
Link to comment
Share on other sites
JohnR725 Distinguished Member

JohnR725

Posted
Posted
9 hours ago, oldhippy said:

You won't find a cal number on those types of clocks with a cylinder escapement.

One of the problems in horology is the assumption of a caliber number will allow you to find spare parts. The problem is spare parts only existed if the manufacture had spare parts. Often times the manufacture was not thinking about after sales service.

In the case of a clock with a platform escapement the platform escapement was purchased typically not made by the clock manufacturer. So if the platform escapement maker was thinking about 100 years from now you might need spare parts they would've bundled up spare parts but more than likely they never did. They would prefer to sell you the entire platform.

 

 

 

 

 

  • Like 1
Link to comment
Share on other sites
AF10 Member

AF10

Posted
  • Author
Posted
14 hours ago, oldhippy said:

... have you got the dial and what condition is that in? Also the bell which fits under the base.

Thanks! Yes, I have... and the glass panels. Everything else is working and seems to run smoothly, but before I start the cleaning I need to find a platform that fits.

Link to comment
Share on other sites
oldhippy Distinguished Member

oldhippy

Posted
Posted
9 hours ago, AF10 said:

Thanks! Yes, I have... and the glass panels. Everything else is working and seems to run smoothly, but before I start the cleaning I need to find a platform that fits.

If that is so then do as I suggested in my previous reply. Just one more thing about the replacement platform try to get one so the 4 screw holes are more or less in the same place. If not that will be a dead giveaway that it is a replacement and the value will be affected a lot.  

  • Like 2
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
 Share
Go to topic listing


  • Similar Content

  • Recently Browsing

    • No registered users viewing this page.

  • Topics

  • Posts

    • JohnR725
      Epilame / Fixodrop

      By JohnR725 · Posted

      yes the things we read in the universe I did see some where it was either difficult to clean off or it contaminated the cleaning fluid there was some issue with cleaning. I was trying to remember something about grease where as opposed to a substance of a specific consistency they were suggesting it had a base oil with something to thicken it. That conceivably could indicate that the two could separate and that would be an issue. But there is something else going on here that I had remembered so I have a link below and the description of the 9501 notice the word that I highlighted? Notice that word appears quite a bit on this particular page like 9415 has that property all so they 8200 mainspring grease and that definitely has to be mixed up when you go to use it because it definitely separates. just in case you didn't remember that nifty word there is a Wikipedia entry. https://en.wikipedia.org/wiki/Thixotropy   https://www.moebius-lubricants.ch/en/products/greases I wonder if what you're seeing is the boron nitride left behind after cleaning. In other words it's the high-pressure part of the grease and it's probably embedding itself into the metal which is why it doesn't clean off and shouldn't be a problem?
    • VWatchie
      Epilame / Fixodrop

      By VWatchie · Posted

      Yes and no. I use Moebius 9501 synthetic grease and it is significantly runnier than the Moebius 9504 synthetic grease (and I assume Molykote DX) that I previously used. I haven't seen 9504 spread and it is in my opinion the best grease money can buy. However, my current method of cleaning doesn't remove it from the parts, so that's why I have decided to use the 9501 instead. I believe I read somewhere that Molykote DX too is difficult to clean off. Thinking about it, I'm pretty sure my 9501 grease which expired in June 2022 is runnier now than it was when it was new, but whether new or old it always needs to be stirred before use. So, that's why I treat the parts of the keyless works, cannon pinion, etc. with epilame. That was very thoughtful of you and something that had completely passed me by. Not sure what the epilame will do when it wears off in a non-oiled hole. Anyone?
    • watchweasol
      Seiko 6601 Tech Sheet?

      By watchweasol · Posted

      Hi not found one either yet,  close relative is the 436 and 4361 according to ranff.db.   It gives quire a lot of detail but not as good as the old site.      RANFF.DB.
    • nevenbekriev
      Rolex 2235 escape wheel jewel setting replacement

      By nevenbekriev · Posted

      No problem to replace the setting with the staking set. Press the new setting from inside, use flat face punch with hole. The punch must be wider than the setting, the hole to be as not to press at the stone, but only on the bush. Press by hand until the setting gets flush with the plate surface, so the punch must rest on it.
    • nevenbekriev
      Quarter repeater mainspring thickness

      By nevenbekriev · Posted

      Yes, the arbor usually makes about 3 to 3.5 turns. But usually spring takes 2/3 to 3/4 of the free space in barrel, not 1/2, so take it for the calcullations. This way the change in torque is smaller. I have a picture for You, this one is little older, but no mater
×
×
  • Create New...