The
patented Clock Care System
consists of three components.
1. The winder attached in a
100 % reversible manner.
This
equipment makes it possible to automatically wind the weights without
damaging the movement: the winding unit prevents
the clock from being wound too tightly.
The winding unit pulls the weight up using a cord that is hooked to
the original weight rope or line and that is wound through to the same
barrel in the same direction. This means that nothing is attached directly
to the clock parts and the winding unit can be installed at a distance.
By defining the direction of pull on the winding cord in the opposite
direction to that of the rope, the load on the bearings during winding
is diminished.
Because battery backup is used, the ratchet wheel softly falls back
against the click after the clock is wound. The battery backup serves as an inexpensive back-up
system for winding during a short power failure of the mains.
When the winding cord is unhooked, manual winding can be performed as
usual.
This winding method is detrimental in movements that do not have 'Maintaining
Power'; this is the system that ensures that the gears are still powered
during winding.
With these movements, the pendulum must be stopped before winding and
set back in motion thereafter. As a result, these clocks must be reset
each time they are wound.
The Clock Care System solves this problem by combining component
1. (the winder) with component
2. (the pendulum catcher).
2. The pendulum catcher, attached in a 100 % reversible
manner.
This
component holds the pendulum in its farthest sideways position,
meaning the point in time at which its motion is theoretically 0, in
order to prevent damage to the pendulum and its suspension.
The pendulum of the movement must be adjusted to run a few seconds ahead
of time each hour (see the previous
section 1.).
The end of an extremely thin (0.1 mm) but strong wire is hooked to the
pendulum bob, which follows its sideways motion. The other end of the
wire is fed into a small column that is located some distance from the
clock. Inside, the motion of the wire is measured electronically, the
pendulum is held at the proper moment and released exactly on time based
on the DCF time signal.
When this wire is unhooked, the pendulum will function as usual.
3. Control system to protect
the original movement.
The
essence of automation is that a machine takes over one or more manual
actions.
Because an automated clock no longer needs to be manually wound or reset,
the regular human checks are no longer performed and the
opportunity for immediate action in case of calamities is lost.
It is for this reason that the quality of the automation is determined
by the manner in which the equipment checks itself and the old clock
in order to prevent damage.
If the movement starts running poorly and the weights no longer drop
(which is observed by component 1.)
or if the pendulum action fails to meet the specifications as defined
(which is observed in the column 2.),
the Clock Care System is automatically put on hold and the clock
will stop.
The relevant data (stored in a computer) can be humanly
interpreted later, and on the basis of this data the movement can be
physically repaired.
Safeguarded in this manner by the computer 3
together with the components 1.
and 2, the clock is protected from
improper running.
Providing the old clock is carefully maintained
and automated in this manner, it has excellent future prospects of being
treated carefully and saved as a living part of our cultural heritage.