French Picture Clock

 


Set of three movements on board


Front Plate



Front Plate with partial lever removed

Top plate removed



Back plate

Front plate showing the amount of dirty oil in pivot holes

Broken Suspension 
The suspension was a thread like material.  To regulate the clock there is a keyed arbor that wraps the thread materal around the arbor thus making the suspension loop longer or shorter.

Damaged mainspring end.  The mainspring end was chiped and down at the bottom of the hole the material is cracked.  This must be rebuilt.  About one inch of the  mainspring was removed.  The end heated and tempered.  From there a hole was punched and filed to size.

Repaired Mainspring End.  This image is not the finished product.  As you can see the hole was not centered.  This was corrected with a little more fileing.

The barrel was repaired by a previous repairman.  This image shows the repair



After all the repair work was completed.  The movement parts including plates, wheels, mainspring and barrels were ultrasonically cleaned, pivot holes cleaned with peg wood, and reassembled it was run on in a test environment.  Click the below image to watch it run.


Once the main mechanism was complete the 2nd strike mechanism was overhauled.  

The movement was completely disassembed.  An inspection of pivots and pivot holes showed no decerable wear.  The movement was just dirty and was ultrasonically cleaned.  

When the mainspring was taken out of the case, it was apparent that the spring end also needed some attention.  It was not as bad and the 1st mechanism but needed a little modification to clean it up.  I do not have a picture of this before and after.

The 2nd and 3rd mechanisms in this image shows how clean the one of the left compared to the mechanism on the right.

Next the 3rd mechanism.  Again completely taken apart and inspected.  Pivots and pivot holes looked good.  The mainspring, like the 1st mechanism was damaged.  The end was removed and a new end was fabricated.  Here is a picture of the mainspring end before work was started:

The new mainspring end

The 3rd mechanism was ultrasonically cleaned and assembled.  

Here is a picture of all three mechanisms reinstalled on the board















Picture clock testing

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