Jump to content

Two Unusual Clocks


clockboy

Recommended Posts

Last night arrived two unusual clocks for repair/service. The first one is a bit unusual but the second one is a real strange one that I have never seen before & should imagine is quite rare.

 

The first one is a mantle clock with a typical French striking movement. What is a bit unusual is the case is not the usual slate/marble but wood. Also the decretive fretting is metal attached to the case. It is a mile out of beat & the metal fretting on the front has been damaged. see pics.

 

post-234-0-15997400-1432124809_thumb.jpg

 

French Movement

post-234-0-74732600-1432124838_thumb.jpg

 

Damaged part

post-234-0-51081000-1432124863_thumb.jpg

 

 

HOWEVER The second clock is a real strange one it is a gravity clock. If my research is correct there is no mainspring or winding it is just the weight of the clock traveling down a geared post that drives it. It is a non runner and I have already told the customer that if anything is broken or missing most likey they will have to be made. The clock is quite rare worth approx. @250. See Pics

 

The glass front also acts as the dial  with numbers painted onto it in reverse.

post-234-0-53176100-1432125130_thumb.jpg

 

Dead beat escapement with pendulum in the front

post-234-0-31698200-1432125154_thumb.jpg

 

Hopefully this pic shows the gearing it travels down & notice the lead attached to the bottom of the clock to add weight

post-234-0-76262000-1432125177_thumb.jpg

 

 

Time is going to be an issue with these but will keep you guys if interested updated

Link to comment
Share on other sites

Hi Guys,

A little story about a gravity clock I repaired recently.

A fellow clockmaker from Tiffanies had a gravity clock on his bench for month's. The problem was that it failed intermittently, no particular time or position on the gear bar. While it worked, it had lots of pendulum overswing, until it stopped, my friend bushed everything and asked if I would try to fix it before it found a home in the parking lot.

I suspected the gear bar assembly since my friend did beautiful bushing work.

In order to test the gear bar, I disabled the click so I could run the movement up and down the bar to see if it would bind up, it did but not always in the same place. I looked in the movement and there were two large round brass guides that slid on the back of the gear bar, they both had developed flat spots where they rubbed on the bar. I rotated the guides about 15 degree's to expose an unused curved area, readjusted clearance as well. Gear Bar and guides must be kept dry.

 

Took a 1/2 hour to repair and now the customer is very happy with it.

My friend owes me a beer

 

Al Takatsch

  • 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.



  • Recently Browsing

    • No registered users viewing this page.
  • Topics

  • Posts

    • The post below contains the link. If you don't already have a discord account it will take you to the registration screen.  Registration is free.   https://www.watchrepairtalk.com/topic/31653-mark/?do=findComment&comment=279066
    • HWGIKE#57 Valex FEF 190 15 jewels Swiss lever full service and repair This one was waiting for a balance staff replacement in my cabinet parts and case cleaned up with a new balance staff and a 4th wheel as the original 4th wheel had a broken pivot for the off center second hand. I never attempted a balance staff replacement before however I received a Bergeon Molfres (i was hunting it for about 2 years) and with the help of it I managed to remove the old staff and riveted the new one in. It also received a new MS, crystal and the hole for the MS arbor was also tightened. With the new MS now it has an acceptable performance meaning that the amplitude goes up to 280 fully wound, has an acceptable beat error and I have the two nice lines but only dial up, dial down is not as nice and I could not figure out as why. I have the two lines but the amplitude is dropping to around 230 and the lines are a bit hairy. Both dial up and dial down the lines just go up and down without seemingly any pattern. I cleaned the movement two times, and then a 3rd time pegged out the main plate and train bridge holes but made no change. Both the HS collet and the roller table was too lose on the new staff... I did not count how many times I took the balance cock off to sort out the HS collet, the roller table and the beat error, somebody before me also shortened the HS by pushing it out a bit and it seems every time somebody is messing with the end of the HS the protruding bit is most of the time twisted bent etc. This one was probably one of the most challenging repair and service. I might take the new MS out and clean it lubricate it as I just pushed the new one in to the barrel from the retaining ring. Plus started to re-read the theory of the escapement and how to analyse the graph on the timing machine: Greiner Chronografic Record manual. I am also thinking to put the watch on a 24 hour long run with the eTimer SW it once helped me to figure out what was wrong with a watch. There is an interesting part of the Greiner record manual talking about the pallets and the end shake of the balance and pallet staff. Maybe this is my issue? Who could that possibly identify? After a few years now I am still without a clue how could watchmakers make parts I can only see with my microscope or how could/can they carry out complicated services impossible to do.. real magic..... .... ..... before I sent this post while the pics were uploading I had an idea, i was browsing the possible outcomes on the timing machine I had one for magnetism..... so I demagnetized the movement and it is not hairy now.... two really nice lines 0.2 ms beat error still a bit wavy, but a lot lot better..... argh....  
    • Hi there, welcome here.  
    • yes the advertising revenue should generate money. The question is how much money? Then as far as the cost of the website goes that's relatively easy to determine? all you would have to do to grasp costs and profitability would be to go to the link below and you can actually get a website for free try it out for free I believe you get no advertising initially. They also talk about that they'll help you out they have marketing tools and some sort of paid subscription or something. So I guess were shopping for a whatever just ask them what would a maybe could use this one as an example in other words it's going to look basically identical to this is going to have advertising a paid subscriptions what's it going to cost? After all they want to sell or give us a message board like this they should bill answer the questions as they're the people who did the software for this. Yes they really said you can have a free discussion group at least to start. https://invisioncommunity.com/ I was curious about the monthly supporter thing where exactly do we find that on this message board? A quick search I'm not finding it so obviously I'm not looking in the right place?
    • Help me out here, but with all the advertising on this site (which I don't mind) wouldn't it pay for itself or even make money for the owner ???
×
×
  • Create New...