Abstract: The system is comprised of three sub-systems. The first sub-system has an actuation lever (P) which can rotate about an axis (E1) to displace excentrically the Second Sub-system with respect to the Third by a predetermined angle circumferentially about a toothed wheel (R1), a toothed fluted wheel (R2) or fluted cross or cross with sliding torkes, and gear carrying shafts passing therethrough. The grooved wheel (R2) rotates a fixed transmission relationship with respect to the rotation of the input shaft. The second sub-system transforms and divides the input power for the primary shaft into powers which are transmitted to various secondary shafts (E3, E4) characterized by oscillating angular speeds and torkes. The third sub-system composes the powers transmitted by the secondary shafts by means of a epicyclic train (T1) into an output power. The resulting output motion is proportional to the eccentricity angle of the first sub-system with respect to the third sub-system.