Abstract: A drive comprising a first group of cylinders of a radial hydraulic pump, rotating in relation to the drive frame about a first axis, and torsionally integral with the input shaft of the drive and with a housing inside which the first group of cylinders rotates; a second group of cylinders of a radial hydraulic motor, rotating in relation to the frame about a second axis; an output shaft, the axis of which is located between the aforementioned axes, and which is integral with a gear meshing with a gear integral with the housing in which the first group of cylinders rotates, and with another gear integral with the second group of cylinders; a mechanism for varying displacement of the first and second group of cylinders; and a distributing mechanism for alternately connecting the cylinders in the first group with those of the second group.

Abstract: The process makes use of a lost core of polystyrene, on which are wrapped and compacted, in successive stages, various sheets or mats of carbon fibre, of known type; a first compaction is effected in an autoclave after having sealingly wrapped the core, before lamination of the carbon fibre layers, in a first polythene envelope, and after having sealingly wrapped the partly finished product constituted by the core wrapped in the first polythene envelope and some of the carbon fibre sheet or mat in a second polythene envelope, by creation of a vacuum within the interior of the second envelope, while maintaining the interior of the first envelope in communication with the outside of the second envelope; a second compaction, after removal of the second envelope, following lamination of further sheets or mats and possible mounting of metal inserts on the core and insertion of the partly finished product thus obtained between a pair of mould halves, is effected in an autoclave by wrapping the two mould halves, pre

Abstract: The device comprises first and second planet wheels having a common axis, first and second pairs of first satellite gear wheels meshing respectively with the first and second planet wheels, the two gear wheels of each of the said pairs being rotatable on a differential housing coaxial with the planet wheels and having axes lying respectively in first and second planes orthogonal to one another and passing through the first-mentioned said common axis; the device further includes two pairs of second satellite gear wheels also rotatable on the differential housing and having axes lying in the same plane orthogonal to the first and second first-defined planes, each of the second satellite gear wheels meshing simultaneously with one of the said first satellite gear wheels belonging to the first pair and with one of the said first satellite gear wheels belonging to the second pair in such a way that drive can be transmitted from one of the said first satellite gear wheels of one of the said pairs simultaneously to

Abstract: The structure comprises a pair of support elements for the window each of which has an abutment tongue which can be contacted by part of the rear surface of the window, a frame tongue orthogonal to the first and adapted to surround the lateral edge of the window, a guide tongue parallel to the abutment tongue and disposed rearwardly of this, and a connection wall connecting the abutment tongue and the guide tongue together; the structure further includes a pair of guide elements each of which is adapted to guide a corresponding support element during movement of the window, and each of which comprises a pair of parallel guide tongues defining with a base wall, a guide channel for a guide tongue of a corresponding window support element, each of the said guide elements being fixed to a corresponding upright of the door.

Abstract: A support structure for a motor vehicle that includes a passenger compartment and is resiliently connected to the vehicle wheels by front and rear suspensions. The structure includes a central frame which defines the passenger compartment of the vehicle. In addition, the structure includes front and rear frames which are connected by respective resilient connection devices to the front and rear of the central frame. The front and rear frames are provided with attachment devices for connecting with the front and rear suspension, respectively. The rear frame supports the motor vehicle engine, the rear differential and the torque divider, and the front frame supports the other transmission members, such as the front differential.

Abstract: The front frame is resiliently connected to a central frame of the motor vehicle supporting structure and is resiliently connected to each front wheel by means of a resilient suspension; this frame substantially comprises a plate engageable against the ends of the attachment beams of the central frame and at least two pairs of first arms substantially orthogonal to the plate itself; the said plate includes a substantially flat wall in which are formed perforations and from which project a plurality of ribs to form a flat reticular structural element, and connection of the said plate to the central frame is achieved by means of sleeves made of resilient material and disposed in corresponding nodes of the said reticular structural element.

Abstract: The rear frame is resiliently connected to a central frame of the support structure and is adapted to support the engine and some of the members of the transmission and is resiliently connected to each rear wheel of the motor vehicle; this frame substantially comprises a pair of first ring-shape structural elements each of which is adapted to support a resilient suspension and comprises a plurality of limbs connected together; the frame further includes a plurality of cross members connecting together the ring-shape structural elements to form with them a single lattice structure, as well as two pairs of longitudinal side members each of which has one end fixed to one of the ring-shape structural elements and the other end adapted to be connected resiliently to the central frame.