Abstract: The present invention relates to the field of tires having reinforced sidlls. In order to improve the high-speed performance of a tire and reduce the extent of vibration of the sidewalls (1) and effectively transmit a torque from the wheel to the ground via the tire, the rigidity of the sidewalls of the tire is adjusted by the provision of reinforcements (6) in the form of assembly sections oriented in circumferential direction. Said assembly sections are of short length as compared with the development of the tire measured at the point S of the tire which is located furthest radially to the outside.

Abstract: Rubber areas of a tire having electrical conductivity are used to transmit ignals to an integrated circuit embedded within the thickness of the tire without relying on an inductive or capacitive coupling. An identification device conducts an electric signal to the integrated circuit through a first electrically conductive area of rubber such as a bead cover and/or the tire tread, and a responsive signal is returned to the identification device through a second electrically conductive area.

Abstract: The invention concerns the structures and production of tubeless tire beads the seal of which on the rim and the resistance to degradation of which are increased. The beads, at least the surfaces of which in contact with the rim are formed of protectors (7), are covered, in accordance with the invention, with an air impermeable rubber mix (8) at least in part over the portion of the protector in contact with the rim. Extension of the covering (8) over the surface of the protector which is in contact with the inflation air is desirable.

Abstract: The present invention concerns a tire-building process in which a so-called "shaping" building drum is used and in which a ply turn-up bladder (2) is clamped on the outside of each bead recess (6) by an assembly of pallets (11) which can open in fan shape and cover the turn-up bladder completely in circumferential direction and in part in axial direction. The axial displacement of the said pallets (11), controlled by the axial displacements of two pistons (7) and (8), makes it possible to modify the shape of the ply turn-up bladder (2).

Abstract: An annular element (3) placed between the two beads (12) of a tire (P) moed on a flat-base rim (J). In order to be able to use the tire on said rim without an inner tube, the annular element, in order to assure the tightness of the assembly, has in meridian section a contour and, in particular, two lateral sides (30) such that the clamping s between the ring and the beads, which is zero or even negative at the base of the ring, increases then slightly over a certain radial distance h.sub.1 and then more greatly over a distance h.sub.2 radially adjacent the first distance.

Abstract: A method and device (100) for connecting the ends of two assemblages (1A, ) of threads (10A, 10B). The ends of the assemblages (1A, 1B) are subjected to an untwisting operation in order to separate the threads (10A1, 10B1) of these ends from each other; as many junction pairs (C) as there are threads (10A1, 10B1) are formed in each of the assemblages (1A, 1B); the filaments of the threads (10A1, 10B1) in the pairs (C) are untwisted, the untwisted parts are placed side by side in each pair (c) so as to obtain a junction region (15); the filaments of the two threads (10A1, 10B1) are assembled together by air splicing in each region (15); all the threads (10A, 10B) thus combined are assembled together by twisting. Joint assemblages thus obtained. Articles, for instance automobile tires, reinforced with these assemblages.

Abstract: A process and device for producing a wire (12) made of amorphous metal alloy having an iron base by producing a jet (7) of molten alloy (4) through the orifice (60) of a die (6), and introducing this jet (7) into a cooling liquid (9) urged by centrifugal force against the inner wall of a rotary drum. The crucible (2) containing the alloy (4) and the die (6) are made using different materials and are joined by a joint (25) the material of which differs from those of the crucible (2) and of the die (6). Furthermore, means (3) are employed for heating the alloy (4) both in the crucible (2) and in the die (6) and an inert or reducing gas is delivered directly in contact with the jet (7) as it leaves the die (6). Wire (12) obtained with this process or this device, this wire being employed, for example, for reinforcing pneumatic tires.

Abstract: A device for monitoring and "cold" checking of an inflation pressure of ts of a vehicle. The device monitors the inflation pressure of the tires with a central processing unit, as well as a socket placed on the vehicle, connected to the central processing unit and which is able to be connected to a portable checking box. This portable checking box can supply power to and communicate with the central processing unit, to thereby check the pressure of the tires "cold" from outside of the vehicle.

Abstract: The extrusion apparatus proposed effects an extrusion of the roller-spout type onto a cylindrical roller 7 associated with a profiled fixed wall 5 and a second extrusion of the roller die type onto a profiled roller 8 and an associated fixed wall 6, and then superimposes the extrusions in the passage between the rollers 7 and 8.

Abstract: In order to be able easily to inflate a tire mounted on a rim with a seal ring (6) arranged between the two beads, without presenting the ordinary inconveniences in mounting, the inflation device is formed of a valve (V, V') provided with a locking element (2, 2') intended to be associated with a locking member (83, 51) separate from the valve. The method of inflation consists then in introducing the valve (V, V') provided with its stem (1, 1') and its locking element (2, 2') into the orifice (64) provided in the ring 6 and into the locking member (83, 51), and then turning the valve.

Abstract: Support device S for the tread of a tire P, comprising a rigid support (1), an elastic cap (2) of rubber stock, a layer of lubricant (5) being arranged between said support (1) and said cap (2) to permit circumferential displacement of one with respect to the other, means (21, 23, 12, 121, 122, 125) being provided to assure the holding of the cap (2) transversely and radially on the support (1).

Abstract: A device (100) for the heat treatment of at least one metal wire (1), chaterized by passing the wire (1) within at least one pair of thermal transfer plates (2, 2a, 2b) between two grooves (8, 8a, 8b) made in the two plates (2, 2a, 2b) of each of said pairs, the distance (E) between the plates being variable, the wire (1) being directly in contact with a gas (11) which is practically without forced ventilation and is disposed between the grooves (8, 8a, 8b).

Abstract: In order to grind a tire 2 mounted on a vehicle, an abrasive belt 5 is us which is stretched over rollers 51, 52, 53, 54 and 46 which are mounted on a frame 4. By the action of a jack 7, the tire 2 is released of all load. A counterweight 45 urges the frame 4 towards the tire 2. The force with which the abrasive belt 5 rests on the tire 2 can be adjusted to a very low value.

Abstract: A method and for the heat treatment of at least one metal wire (1), chararized by passing the wire (1) within at least one pair of thermal transfer plates (2, 2a, 2b) between two grooves (8, 8a, 8b) made in the two plates (2, 2a, 2b) of each of said pairs, adjusting the variable distance (E) between the plates, so that the wire (1) is directly in contact with a gas (11) which is practically without forced ventilation and is disposed between the grooves (8, 8a, 8b).

Abstract: In order to improve the fatigue strength of the bottom (80) of the groove ) which is located axially between the two treads (1A) (1B) of the of the same tire and which extends radially over a reinforcement wire (7) which is located axially at the level of the equatorial plane (XX') of the tire, and below which the carcass reinforcement (10) passes, said groove (8) has a special meridian configuration in combination with the radial position of the center of gravity of the reinforcement wire (7).

Abstract: The device comprises a ply turn-up bladder 1 capable of moving axially tods the center of the drum 3 in the manner of a caterpillar. It's movement is controlled by the inflation of a thrust bladder 2.

Abstract: A method and device (1) for causing a plurality of threads (7) to arrive on support (11) so as to obtain a ply (13) while imparting a nonlinear shape to the threads (7). The threads (7) are caused to arrive with controlled speed on a cylindrical drum (2) in rotation around an axis. The threads (7) are imparted the nonlinear shape by means of teeth (5) which are displaced with respect to others, parallel to the axis of rotation. At least some of these teeth are flexible between a free end in contact with a thread (7) and an anchoring zone. Plies (13) obtained with this method or device, these plies being used for instance in a tire.

Abstract: In order to assure excellent molding of the tire at the place of the markings appearing on the side wall of a tire, the shell of the mold has cutouts which correspond to the shape of the marking, the cutouts containing removable closures which admit material for molding the markings while permitting venting of the cutout. In one embodiment the removable closure is an insert which slides in the cutout. It is possible to adjust the relief of the marking. Venting is assured by the clearance between the insert and the cutout.

Abstract: The present invention relates to a tire (P) intended to bear heavy loads and inflated to high pressure, particularly suited for use as an airplane tire. In order to improve the fatigue strength of the beads (4), the axially outer plies (3E, 3F) of the carcass reinforcement (3) in the region of the beads (4) have their edges (30E, 30F) disposed between the upturns (30A, 30B, 30C, 30D) of the axially inner plies (3A, 3B, 3C, 3D).