End of Left Complementary Arc
The balance transmits its dynamic energy
to the balance spring, comes to a stop
at the left point of inversion, and is
accelerated in the opposite direction by
the energy saved in the balance spring.
Discharge
The impulse pallet engages the pallet fork,
releases the escape wheel tooth
at the entry pallet via the pallet lever,
and causes the discharge.
Balance:
+220°, stationary,
left point of inversion
Balance spring:
Max spring tension,
max restoring force
Pallet lever:
Free, left locking point
Escape wheel:
Stationary
Balance:
+10°,
counterclockwise rotation
Balance spring:
Near center position,
tension almost all released
Pallet lever:
Discharge
Escape wheel:
Stationary
Illustration D
Illustration E
Lift and Impulse
The escape wheel tooth leaves the locking
plane of the entry pallet and glides to the
impulse plane. The balance thereby receives
another impulse from the rotational motion
of the escape wheel and the pallet lever via
the impulse pallet.
Drop
The impulse pallet leads the pallet fork to
the right banking stud. At the same time, the
entry pallet releases the escape wheel tooth.
After a small rotation of the escape wheel,
the next escape wheel tooth drops onto the
locking surface and pushes the pallet fork
to the right banking stud.
Balance:
+5°,
counterclockwise rotation
Balance spring:
Near center position,
tension almost all released
Pallet lever:
Lift
Escape wheel:
Rotating
Balance:
-20°, counterclockwise rotation,
left point of inversion
Balance spring:
Gathers energy
from the balance
Pallet lever:
Drop, right locking point
Escape wheel:
Stationary.
Illustration F
Illustration G
Functional Routine of the Escapement
