This animation is showing how one of simple pendulum constructions is supposed to function. System would have one direction brakes on a main axis, it would be controlled by the position of a ballast disc on a secondary axis. When the disc is in a highest position, one direction brake on a main axis is released only when the disc falls in to another position, or short moment before.
The main axis can be connected to a flywheel. and generator, which could possibly act as a one direction brake too.
Pendulum o
آی-ویدئو