Abstract: A processor node which includes at least one local bus (10) that assures a parallel link among the processors (8), a local memory (11) and a shared cache (12), and one network bus (13) that assures a parallel link among the local memory (11), the shared cache (12), and at least one input/output device (6).

Abstract: An electric motor comprises a stator element made of magnetic material, a moving element made of magnetic material and carrying at least one permanent magnet and adapted to run along sections of the stator element while defining two constant air-gaps by means of which the magnetic flux of the permanent magnet closes up in said stator element, and at least one coil wound around at least one of said sections. At least a pair of stops delimits a given clearance for the moving element along the coil. The movable element bears against either of the stops as a function of the direction of the direct current applied to the coil and remains magnetically locked thereto by means of a magnetic portion of the stops through which passes part of the magnet flux.

Abstract: A device for temporarily locking onto a stator a rotor that normally rotates on the stator on magnetic bearings (such as an inertia wheel in a space satellite) includes a frustoconical bearing surface near the periphery of the rotor and a complementary frustoconical bearing surface on the stator. The rotor bearing surface is axially engaged with the stator bearing surface by a cable forming an annular loop in a transverse plane. A device is provided for releasing this cable. A plurality of radially mobile elementary bearing surfaces are coupled to the stator and there is a second bearing surface at the periphery of the rotor. These elementary bearing surfaces are axially engaged with the second bearing surface on the rotor, against the action of a return spring arrangement, in the direction opposite that in which the conical bearing surface on the stator applies an axial engagement force to the frustoconical bearing surface on the rotor.

Abstract: A closing and filling unit having a piston valve (22) whose closure member (28) is provided with axial openings. A rotatable and slidable element (32) is provided for actuating the valve. Arrangements (35, 40, 41, 33, 36) are provided for utilizing the pressure of the fluid to force the element (32) into engagement with the piston (28). The device is adapted to be detachably fixed to the body of the valve by means of a screw-threaded boss through which extends an actuating rod (37) which is rigid with a piston (36) sliding in a chamber (33).