Abstract: An autosynchronous motor comprises a control and power circuit for the windings of a stator generating a rotating field the angular direction of which is a function of the magnetizing direction of the permanent magnet of the rotor, and to a positioning device producing a signal representing the angular position of the rotor relative to the stator windings. This positioning device emits one pulse per rotation; it comprises a moveable member integral with the rotor and a steady or fixed member integral with the stator.The stator member of the positioning device and the stator comprise complementary means so that this stator member can, by manual operation, be rotated around the axis of the motor. Marking references are provided for predetermined angular positions of the stator member. These complementary means are, for example, on the stator constituted by a ball repelled by a spring and on the stator member by a number of notches equal to the number of pairs of the rotor.

Abstract: The synchronous machine comprises a rotor provided with permanent magnets arranged for orthoradial magnetic induction and which are disposed around the axis in such a way that two adjacent magnets have counter-direction inductions, pole-pieces deviating the said induction so that it becomes radial to the periphery and each of the pole-pieces being formed of half-poles separated by a split pin applying each of the half-poles against the adjacent magnet, and wherein each magnet and each half-pole is in a single block in axial direction, the edges of the flanges ensuring the cohesion in radial direction.