Abstract: The disclosure relates to a final drive unit for a motor vehicle in which a differential has a rotatable planet wheel carrier formed with hollow axial extensions on both sides thereof through which the output drives extend. One of the extensions is supported for rotation of the planet wheel carrier in a first bearing and an input ring gear is secured to the other extension. The input ring gear is supported directly on a bearing mounted on a carrier.

Abstract: A head/neck support for a vehicle seat comprises a cushioned head rest having a support frame which is mounted on a spindle attached to the upper end of a post projecting from the seat back. The spindle carries two spaced detents engageable with two members of the frame spaced along the spindle to lock the frame against rotation around the spindle, the head rest being released for adjustment by bodily moving the rest along the spindle against the action of a return spring to release the detents and then turning the rest to the required attitude and releasing it to allow the spring to return it along the spindle to re-engage the detents.

Abstract: The rotor balancing device disclosed herein comprises a cylindrical cup-shaped housing for mounting in a hollow rotor to be balanced having a central pivot on which two bushes are mounted. Two bob weights are connected by tension springs or other restraining devices to the two respective bushes to rotate about a pivot within the housing wall. The inner side of the housing wall and/or the weights have a coating of a contact or thermally activated adhesive. The restraining force of the tension springs is such that when the shaft in which the balancing device is mounted is rotated to a speed between natural frequencies of the vibration of the shaft and is nearer the lower frequency (i.e.

Abstract: The disclosure relates to a rack and pinion steering mechanism for a motor vehicle in which the rack housing is stiffened by integral webs and has lugs to provide mountings for the vehicle engine.

Abstract: A rotor to be balanced has an annular cavity containing two balls free to roll around the cavity. An initially inert thermo-setting adhesive is coated around the cavity. The rotor is rotated to a speed just above its first resonant frequency of vibration and the balls take up balancing positions in the cavity counter balancing the out of balance of the shaft. The adhesive is activated by a temporarily placed external heat source to permanently lock the balls in the balancing position so that the shaft is permanently balanced.

Abstract: A headlamp assembly includes a headlamp mounted to tilt in a vertical plane. An adjustment mechanism for varying the angle of tilt consists of a pivoted lever connected to the headlamp through a push/pull rod, a Bowden cable mechanism one end of the cable of which is connected to the lever and a linearly slidable block to which the other end of the cable is connected. The block is adjusted by a screw threaded rod mounted for rotational adjustment which engages in a threaded bore in the block.

Abstract: A vehicle seat assembly is mounted for fore and aft adjustment on slides. A separate slideway extends parallel to the slides and a slide element is lockable at spaced positions along the slideway. The seat has a tilting squab and a lock is provided for locking the sides of the squab. The squab is connected by a pivotal link to the slide element so that, with the squab lock released, the seat is slid forward along its slide by swinging the squab forwardly and with the squab locked and the slide lock released, the seat as a whole can be slid forwardly on its slides.

Abstract: The disclosure relates to a rack and pinion assembly in which flexible bellows are provided at both ends of the assembly between the ends of the rack housing and the ends of the rack. The bore at each end of the housing is enlarged and the bellows at each end of the assembly is so connected to the end of the housing and the rack that as the rack is retracted into the housing by movement in one direction the bellows is retracted into the bore and is wholly accommodated in the bore when the rack is fully retracted into the housing.

Abstract: The disclosure relates to a motor vehicle body having a passenger compartment with an air conditioning installation comprising a plenum chamber located externally of the compartment and having an inlet for fresh air and an outlet leading into an air heater in the passenger compartment. Air is delivered through the outlet plenum of the chamber by an air blower which is supplied by a separate duct in the plenum chamber containing an air cooler. The duct has valve controlled openings into the plenum chamber to receive fresh air and into the passenger compartment for recirculation of air from the compartment.

Abstract: The disclosure relates to a fan assembly including a duct in which an axial flow fan is mounted, there being a plurality of apertures formed in the duct wall around the fan and a layer of acoustic absorption material encircles the duct and projects through the apertures into the duct to have a minimum running clearance from the periphery of the fan.

Abstract: The disclosure relates to an interior light for a motor vehicle comprising a lamp body having light bulbs mounted thereon and enclosed by an elongate transparent cover. An opaque cover is slidable within the fixed cover to cover over said light bulbs or expose the bulbs and the slidable cover has at least one aperture therein through which a beam of light may pass when the cover is located over the light source.