|Checking the Power Train
The plates and wheel are now pre-assembled and
checked for freedom (See Fig.7).
The Plates are then taken apart again, and all of the
pivots are inspected. This has revealed that some of the
pivots will need to be polished, as signs of wear are
apparent. You will also note that there are some nasty
dark stains on the brass. I will use a different chemical
soaking treatment to attempt to remove these stains as
much as possible. The spring barrel is soaked (see Fig.
8) in an attempt to loosen and minimize the stain left
from crystallized grease.
|Cylinder Escapement Pocket Watch Restoration (cont.)
| The upper balance cock jewel is missing, and the
lower jewel is cracked, so it is removed leaving empty
settings ready to accept new jewels. The cap jewel for
the upper cock is missing as well (see Fig. 9).
One option is to make small brass settings that can
be fit with small friction balance jewels (see Fig. 10),
and these brass settings will then be burnished into the
exiting holes. As original 'rub-in' jewels are very
difficult to find and are not made any more, this option
allows for replacement without altering the plates.
As the existing hairspring is in very bad shape, a
blank hairspring has been found and will be "vibrated"
to the balance wheel (see Fig. 11).