 |
Greg and Dave listen attentively to Lindsay talk
about the way he fits suspension springs to 400 day clocks |
 |
Lindsay clarifies the key operating functions
of the spring |
 |
The Horolovar Guide illustrates suspension assemblies,
mainly Post WWII |
 |
Removal of suspension guard if fitted is a necessary
first step |
 |
Lindsay's jig is simple a block of wood with a
line scribed down the middle and a small hole for the pin in
the bottom block |
 |
Insert the suspension spring into the top block
and screw the two halves together but not too tight |
 |
Check the length of the spring by eye, keeping
the penduum clear of the base and any locating cup that may
be present |
 |
Cut the spring to length and place on the block |
 |
Line up for the bottom block |
 |
Align the bottom block |
 |
Screw up the bottom block |
 |
Test the length with the pendulum attached. |
 |
This was done without reference to the guide to
demonstate what you do without a picture. This shows it to be
a little long. |
 |
Fix the fork in accordance with the guide, or
start 1/4"below the top block if there is no guide - experience
will help here |
 |
Voila! the finished piece - rotating but still
to be put in beat. |
 |
Hard work always deserves a cup of tea as Jack
agrees |
 |
Harry has a point to make |
 |
Good fun had by all! |
