Abstract: A rubber composition intended for the manufacture of tire casings and elastic bearings for vehicle suspension systems, with elastomeric base containing oxygenated functions reinforced with a majority of silica-type filler, whose hysteretic properties are improved by use of a combination of an aminoalkylalkoxysilane with an alkylalkoxysilane, particularly for use in the tread of tire casings for trucks, construction and farm vehicles or airplanes.

Abstract: A mold shell having a hole which extends from the molding surface through said shell up to the outside of said mold. The hole is closed by a plug having a completely air-tight end face which is flush with the molding surface so as to constitute a portion of the molding surface, said plug occupying all of the surface of said hole in the molding surface.

Abstract: An assembly line for mounting tires on wheels, for inflating the tire mounted on a wheel, for placement of the bead heels of the tire and for balancing which also includes apparatus for checking the conformity of the diameter of the tire to be mounted and for checking the conformity of the dimensions of the wheel.

Abstract: A molding element intended to equip a mold for molding, in a tread made of a rubber compound, a non-demoldable pattern, the element including at least one part molding a part of a pattern with an undercut. The molding element is one wherein during at least part of the demolding operation, the projected area of each part molding a pattern with an undercut onto a plane perpendicular to the demolding direction is smaller than the area of the same part projected onto the same plane in the molding position, so as to make demolding of the molding element easier.

Abstract: A tire with a radial carcass reinforcement, when viewed in meridian section, includes a first bead, the seat of which is inclined towards the outside, the heel of the bead being axially on the inside and being reinforced by at least a reinforcement ring, the toe of the bead being axially on the outside and having a rubber wedge section made of rubber mix, the wedge being defined by two sides, the said rubber mix having a Shore A hardness greater than the Shore A hardness(es) of the rubber mixes located axially and radially above the bead ring and above the rubber wedge section.

Abstract: A torsion axle for a vehicle, said axle having two arms and a cross member having a transverse axis parallel to the transverse direction, the cross member having a free edge at each of its lateral ends, the arms being connected to each of the ends of the cross member, each of said arms being designed to be attached to the body by a joint on the body, so as to define for each arm an axis coupling the arm on the body, the joint allowing a disalignment of the axes of coupling in relation to each other, each of the arms being designed to support a wheel, the cross member providing a torsion axis on which the arms swing in relation to each other, and the cross member being connected to each of the arms at each of its lateral ends by at least three ball joints, allowing a free twisting of the free edges of the cross member relative to the arms.

Abstract: A deformable structure for a vehicle, designed to roll on an axis of rotation, including an annular internal element centered on the axis, an annular external element, flexible and appreciably inextensible, forming a tread radially arranged externally relative to the internal element, a plurality of spokes arranged substantially radially between the internal element and the external annular element, each spoke being capable of opposing a radial compressive stress, beyond a given threshold, an appreciably constant force, the external element having a circumferential length such that the spokes are preloaded in radial compression, and in which provision is made for stabilizing the relative positions of the internal element and external element, characterized in that the spokes are formed and arranged between the internal and external elements, in such a way that their flexibility in a meridian plane is well below their flexibility in a circumferential plane, and in that the of stabilization limits the amplitude

Abstract: An extruder screw having at least one raised part forming a thread projecg on a core intended to be rotatably mounted inside an extruder roll in which the raised part includes a crown wall and side walls intersecting with the crown wall, the intersections between each of the side walls and the crown wall forming edges intended to cut the material, the crown wall of said raised part being provided with a coating of at least two materials of different hardnesses placed side by side on the crown wall.

Abstract: An axle for vehicles having a suspended body, the axle having a crossmember connecting two arms. The arms are each joined to a shaft defining a pivot axis of the arms on the body. The crossmember allows for a relative clence of said suspension arms. The axle further contains two supports. A resilient suspension joint is inserted between each support and each shaft, each resilient joint being integral, without sliding, both with the support and the shaft. Each resilient joint contains holes defining a position of less radial rigidity arranged approximately vertically.

Abstract: A process of molding of a rubber tread making it possible, after molding grooves, to strip the mold without rupture of connecting elements molded in the grooves. A molding element for molding a groove pattern in a rubber tread, the groove defined by at least two main opposite walls joined by at least one molded rubber connecting element, the molding element being designed to project from a molding surface of the mold and presenting at least one opening for molding a connecting element during molding of the tread. The molding element is constituted by the assembly of a first part forming a support, intended to be fastened to a piece of a mold by appropriate means, and of a second part constituted by at least one piece forming a key. Each key is disengaged from the support in order to strip the molding element from the mold.

Abstract: A method and machine for mounting tires, bead by bead, in which, after hag partially set a first bead in place in the groove of a wheel rim, that mounting of the first bead of the tire is completed by means of a rotation of the wheel and tire assembly against a mounting roller.

Abstract: A device for making a mold for molding at least a portion of a tread of a re using a countermold and a pourable, solidifiable material. Molding elements are transferred from the countermold and imbedded in the tire tread mold in protruding fashion by placing each molding element in a housing of the countermold before the actual molding of the tire tread mold and in such a manner as to permit easy transfer from the countermold to the tire tread mold.

Abstract: A radial tire (10) having at least one belt enforcement (13) and one carc reinforcement (14) with at least one ply (20) of rubberized fabric (24) having radial threads (25) essentially parallel to the radial direction (xx'), the radial ply having at least one overlapping splice (21) formed by the overlapping of two edges (22, 23) of the said fabric (24) and being limited circumferentially by two borders (28,29), characterized in that the said splice (21), in each of the said edges (22, 23), has at least one cut (26, 27) located underneath the belt reinforcement (13) and splitting several radial threads (25). The tire according to the invention, compared with classical radial tires of the prior art, presents an external sidewall appearance that is clearly improved.

Abstract: Process and devices for detection of the actuation of support of a tire on safety support, the process and these devices being characterized by the fact that, when support actuation occurs, they detect the appearance of a resonance mode characteristic of supported rolling travel in the components of the vehicle suspension.

Abstract: A tire (1), a mounting rim (2) therefor and a circumferentially unstretchable ring (3) for supporting the tread (10) of the tire when running at low or zero pressure. The tire (1) has a radial ply casing (13) on which the points that are furthest apart axially are radially apart close to seats (12B) of outwardly sloping beads (12). The seats (12B) engage sloping seats (23', 23") on the rim (2), which may have at least one mounting well (22), at least one cylindrical portion (21) for receiving the supporting ring (3) and a rim flange (24).

Abstract: The strut comprises a ball bearing (42) located below the lower retainer ) of the spring (4). The ball bearing (42) is centered on an eccentric collar (27) in order to shift the center of the ball bearing (42) by a distance e from the axis of the shock absorber. Rotation between the body (2) of the shock absorber and the hub holder (5) displaces the center of the ball bearing (42), which shifts the lower retainer (41) accordingly. Using a suitable measuring bench, the strut is adjusted precisely upon the assembling thereof.

Abstract: A tire with radial carcass reinforcement 1, having a crown reinforcement 3 aving at least two working crown plies 32, 34 made of inextensible cables, crossed from one ply to the other and forming angles of between 10.degree. and 45.degree. with the circumferential direction, characterized in that in the absence of any ply formed of inextensible cables forming an angle greater than 45.degree. with the circumferential direction, an additional, axially continuous, ply 33 formed of metallic elements oriented substantially parallel to the circumferential direction, is placed radially between the working plies 32, 34, having an axial width L.sub.33 at least equal to 1.05 times the axial width of the widest working crown ply L.sub.32, L.sub.34.

Abstract: A method for obtaining a tire comprising a colored motif and a decal inted to be applied to the outer surface of a vulcanized rubber tire. The decal is made of a thin sheet serving as temporary support for a motif made with one or more vulcanizable colored inks. The support has at least one cutout having a shape adapted to permit the fitting therein of at least one element in relief protruding from the surface of a tire at the place selected for the colored motif.

Abstract: An axle comprises having a crossmember coupling two arms, each arm carrying a stub axle for receiving a wheel, the crossmember being formed essentiy by two coaxial half-crossmembers partially inserted into each other. Resilient rings non-slidingly integral with each of the half-crossmembers and axially spaced from each other ensure the relative torsional stress transmission between the half-crossmembers. The crossmember is not aligned with the pivot axis of the arms on the body.

Abstract: A wheel is formed of a rim and a wheel disk, the rim having a first rim s and a second rim seat, at least the first rim seat having a generatrix which is inclined towards the outside and extended axially towards the inside by a bearing surface intended to receive a tread support ring. The rim bearing surface is provided, radially to the outside, with elements in relief separated by recesses or hollows. On the major part of the entire surface of the radially inner wall of the wheel rim, each point of a generatrix of the radially inner wall, included between the point of tangency A of said generatrix with the corresponding axially inner generatrix of the disk and the end B axially located on the end of the second wheel seat, is on a circle of diameter D.sub.P which is at least equal to the diameter D.sub.A of the circle on which the point of tangency A is located and at most equal to the diameter D.sub.B of the circle on which the end B is located.