Abstract: The present invention concerns essentially a method for moulding a rocker arm for an internal combustion engine and the mould structure for carrying out this method, which mould structure comprises a device for maintainiing a ceramic reinforcing element of the arm of the rocker arm co-operating with the cam of a camshaft and comprising a spindle-forming part disposed on the end of the reinforcing element and a pusher-forming assembly located above the spindle-forminig part to forcibly urge the latter against the reinforcing element.

Abstract: A guide arrangement for a sliding window of a vehicle includes a generally "U" shaped guide rail secured in a frame of the window opening and a runner slidable in said guide rail and which straddles and is fixed to the an edge of the window. The runner has a thin web disposed between the outer surface of the window and an outer leg of the guide rail in which the runner slides, so that the outside surface of the window is almost flush with the outer surface of the vehicle. A weatherstrip like seal mounted on the frame of the window opening engages the window.

Abstract: The present invention relates to a device for fastening a first part to a second part, the two parts having an assembling backlash between them, this device comprising a bush with inner and outer threads with opposite pitches, interposed between the threads of a fastening screw and an inside thread of the second part matching with the outer thread of the bush.

Abstract: The support is so arranged as to have a wider damping characteristic. For this purpose, it comprises two expansion chambers connected to the same work chamber by ducts having different characteristics so that the liquid contained in these ducts is put into resonance at different frequencies. The two expansion chambers are disposed concentrically to each other on the same side of the work chamber and are defined by a separating partition and by a single diaphragm.

Abstract: The present invention concerns a machine for heat treating camshafts, this machine comprising essentially torches likely to produce an electric arc and carried by a carriage which is movable owing to a binary control motor along a horizontal direction parallel to the axis of the camshaft to be treated, this carriage being carried by an intermediate carriage movable owing to another binary control motor along a horizontal direction perpendicular to the axis of the camshaft, which intermediate carriage is mounted in a vertically movable manner on the frame of the machine along a vertical direction perpendicular to the axis of the camshaft owing to still another binary control motor carried by the frame.

Abstract: The bunch of electric conductors comprises a plurality of sections (10a, 10b) which are interconnected and each group a plurality of conductor wires. At least one of the sections (10a, 10b) comprises a rigid body which contains the wires and has ends which are connected to mulitple connectors (11a, 13a, 15a, 13b, 15b) which are interconnected by the wires. With this arrangement, the bunch of conductors may be mounted in an automatized manner.

Abstract: The device can be applied to vehicles provided with an electronic control device for the vehicle engine. The protecting device for includes a keyboard for entering a user's code, a microprocessor for converting entered data coming from the keyboard into an output message containing the user's code, programmable and non-volatile memory for storing the code for unlocking the engine electronic control device, a microprocessor for comparing the unlocking code stored in the memory with the user's code contained in said message coming from the keyboard and unlocking the engine electronic control device when there is coincidence of the code contained in the memory with that contained in said output message, and the microprocessor and the memory being capable of effecting replacement of the unlocking code of the engine control device with a new unlocking code through action on the keyboard.

Abstract: A three part mould for an engine cylinder block which has several aligned cylinders with parallel axes, several bearings for mounting a crankshaft having an axis perpendicular to the cylinder axes, voids formed around the cylinders, and recesses between the bearings and the cylinders, includes an upper segment, a lower segment and a central segment. The three segments are superposed in the direction of the cylinder axes. The upper segment forms the cylinders and at least one portion of the voids. The lower segment forms the bearings and at least one part of the recesses. The central segment forms matching parts of the voids and the recesses.

Abstract: Cylinder block molding apparatus includes two series of parallel and alternate molding plates for partitions. The plates extend in planes perpendicular to the axis of an engine shaft. Each series of molding plates is mounted, respectively, on a support capable of sliding parallel to the axis of the engine shaft relative to the cylinder block between a molding position where mutually confronting molding faces of two consecutive plates bear against one another and a lifting position where the molding faces are moved apart as a result of sliding of the supports.

Abstract: A clamp for fastening a carpet onto a floor, comprising two members spaced from each other in a vertical plane and including one claw directed upwards for one member and downwards for the other member to allow the insertion and catching of two sides of a carpet onto the clamp before the clamp is clipped onto a flange-like edge.

Abstract: The support has a generally annular shape and a fixing device extends axially therethrough. It comprises an annular elastically yieldable mass connected to two frames, a semi-toric membrane fixed between the two frames and defnining with the outer surface of the mass a work chamber (A). This chamber communicates with an expansion chamber (B) through a passageway. The support also includes a device for limiting its axial and radial movements. Such a support has a particularly low natural stiffness both in the radial direction and in the transverse direction, which improves the filtering of high frequency vibrations while affording a good damping of trepidations of low frequency and large amplitude.

Abstract: The present invention concerns a rear steering control device in particular for an automotive vehicle, this device comprising a plate with at least one cam-forming part forming a recess in the plate and whose profile defines the law of deflection of the rear wheels according to the deflection of the front wheels and a roller meshing with the cam-forming part and mechanically driven by the drive shaft so that the rotation of the transmission main shaft of the vehicle causes the roller to exert a thrust on the cam-forming part.

Abstract: A device and method are provided for rapidly priming a catalyst contained a catalytic pot for a two stroke engine wherein the hottest fraction of the exhaust gases is transferred upstream of said catalyst and the remaining fraction of the exhaust gases is transferred downstream of said catalyst, as long as said catalyst is not primed.

Abstract: A device for fixing an element to an outer surface of a support wall of a hollow body in proximity to a first partition wall of this body perpendicular to said surface, including a bolt which extends through a part of the element and said support wall and cooperates with a nut bearing against an inner wall of the hollow body, parallel to said outer surface, wherein the nut is constituted by a plate in which is provided at least one tapped hole and to which is elastically fixed a fastener extending through an opening in the first partition wall. This opening permits the introduction of the plate, the fastener being itself elastically fixed to the first partition wall.

Abstract: An inertia-actuated circuit breaker for protecting an electrical circuit of a motor vehicle in the event of collision or overturning of the vehicle, the circuit breaker including a piston with a conductive element. The piston is axially slidable inside a case between a rest position and a circuit-breaking position. In the rest position, the conductive element bears against two contact studs of the electrical circuit. A ball is resiliently maintained in a rest position between a seat of the piston and a seat of the case by a spring. The studs of the electrical circuit are mounted to be axially slidable relative to the case to permit the piston to slide axially in opposition to the resiliently yieldable force exerted by the spring and are resiliently yieldably biased against the conductive element.

Abstract: Fixing means (4, 5) extend axially throughout this support which has a generally annular shape. It comprises an annular elastically yieldable body (1) connected to two frames (2, 3), a flexible elastically yieldable wall (8) fixed between the two frames (2, 3) and defining with the outer surface of the body (1) a working chamber (A). This chamber communicates with an expansion chamber (B) through a duct (16). The support also includes means for limiting its axial and radial movements. Such a support has a particularly low specific stiffness both in the axial and transverse direction, which improves the filtering of high frequency vibrations, while affording a good damping of low frequency and large amplitude trepidations. It is moreover easy to manufacture and therefore of relatively low cost.

Abstract: The control device is of the type in which the movable elements for engaging the gear ratios are shifted by means of parallel slidable yokes (40, 42, 46, 48) on which acts a main control finger member (20) which pivots for alternately sliding each of the yokes in at least one direction and causing the engagement of a gear ratio. According to the invention, the device further comprises an auxiliary control finger member (54) which is capable of pivoting about the axis of the control shaft (12) for sliding a yoke (46) of the two lateral end yokes in a first direction and causing the engagement of the reverse gear ratio, it only being possible to shift the other lateral end yoke (48) by means of the main control finger member (20) in the opposite direction for selecting the forward gear ratio of the highest rank.

Abstract: A hydropneumatic accumulator including a metal sheet casing and an elastomer membrane which separates the inside of the casing into a first chamber containing a pressurized gas and a second chamber containing a liquid, this membrane being fixed to the casing by a cup, in which a sheet metal disk is cold deformed in two operations, namely a first operation for obtaining a cylindrical or conical blank, one end of which has a convex bottom and provided with an orifice for filling the first chamber with gas, and a second operation in which, after the membrane has been fixed in the casing by means of the cup, the cylindrical part of the blank is hammered so as to give it a spherical shape with an axial orifice in which a connection is crimped and welded for feeding liquid into the second chamber, wherein said cup is fixed to the bottom of the casing by irremovable means and the first deformation operation is carried out so that the blank has a form such that the membrane may be engaged between it and the cup, clam

Abstract: There is provided in the partition wall separating two adjacent cylinders, on one hand, a main passageway and, on the other hand, at least one conduit drilled from the upper surface of the cylinder block and putting in communication a cavity connected to a first chamber and a second chamber located on the other side of the line of cylinders. Application in particular in engines in which the distance between two adjacent cylinders is particularly small for reasons of reduced overall size.

Abstract: The device includes a filter containing a material which adsorbs the vapors coming from a tank. The filter is connected through a first duct to the upper part of the tank, through a second duct to a source of depression and through a third duct to a source of air for regenerating the adsorbent material. Apparatus is provided for heating the regenerating air. The device further includes apparatus for regulating the temperature of the air flowing in the third duct, this apparatus has a temperature response control element disposed in the filter. The device is particularly useful in automobile vehicles.