Abstract: An intercirculation tunnel between successive railroad cars or highway vehicles for ensuring protection against bad weather and atmospheric agents as well as noise and heat insulation as a unitized structure with oval constant cross section. The structure has a self-supporting wall that is elastically deformable throughout without mechanical devices, and that is composed of a multilayer composite of compact elastomers including an outer layer and an inner layer which can also contain reinforcements and an intermediate layer of a cellular polymer material.

Abstract: An elastic mounting molded from an elastomer compound bonded to two fastening frames, in particular for antivibration isolation of vehicle suspension elements, where the deformation rigidity is blocked in one direction by the tension of a metal cable embedded in the elastomer.

Abstract: A fastening device for splicing belts which include reinforcement elements fashioned of a synthetic textile or metal cord. The fastening device includes two lateral plates provided, in lower areas thereof, with retainer irons, and two intermediate plates which are provided, at an upper portion thereof, with an end zone of a rounded shape. The lower part of the intermediate plates is fashioned into an arc of a circle and provided with a stop which, when the belt is in use, will contact the retainer irons. A central plate is also provided which includes, at a base thereof a zone having a curvilinear triangular cross-sectional configuration, with the two lateral plates, two intermediate plates, and central plates and the belt being held by transversely extending bolts and, with the device acting as a cord clamp.

Abstract: Radial device for anchoring a flexible tubular structure in an opening in a rigid wall, characterized by flexible tubular structure having a bead reinforced by an armature with linked segments, embedded in rubber, composed of segments made integral by a nonrigid linking element in order to allow bead to bend in the axial direction so that it can slide into the hole in rigid wall.The invention applies to any industrial assembly, for example expansion joints, or any assembly on a vehicle, such as air suspension diaphragms.

Abstract: Radial device for anchoring a flexible tubular structure in an opening in a rigid wall, characterized by flexible tubular structure having a bead reinforced by a fragmented armature embedded in rubber, composed of individual elements in order to allow bead to bend in the axial direction so that it can slide into a bore of the rigid wall.The invention applies to any industrial assembly, such as for example, expansion joints, or any assembly on a vehicle, such as air suspension diaphragms.

Abstract: Radial device for anchoring one end of a flexible tubular structure to a mating flange, characterized by a flexible tubular structure having a bead reinforced by an armature embedded in rubber, one-piece and rigid at the time of manufacture of the tubular structure but mechanically divisible into predefined segments at the time of the flexible tubular structure mounting, to allow the bead to bend so that it can slide into the bore of the rigid wall.The invention applies to any industrial assembly, for example expansion joints or air suspension diaphragms.

Abstract: A vacuum-operated mount for mounting an engine of a passenger or commercial motor vehicle which includes a variable volume chamber enclosed by a thick rubber encasement. The encasement is adapted to tolerate a force greater than the suspended engine under the effect of a moderated vacuum affected by controlling a connection of the variable volume chamber with two additional enclosures or chambers so as to increase or decrease a vacuum in the work chamber in order to create an accelerating force for correcting a displacement of the engine.

Abstract: A vibration insulation arrangement for a load which includes a rubber mount formed with a rubber enclosure adapted to alter its shape, and with modulated auxiliary pressure that when displacements of the mount occur an active absorption is provided by a rapid communication of an interior of the rubber enclosure with two additional enclosures which are maintained at preadjusted pressures in order to exert a predetermined pressure so as to provide for a vibration damping of the load.

Abstract: A device for temporarily shutting off conduits comprises an elastic or resilient sleeve expansible under powerful internal pressure, and having a rubber wall comprising at least two superimposed plies defining an internal tube and an external sheath, the cords of all the plies being crossed from one ply to another while forming angles smaller than 30.degree. with respect to the generatrices.According to the invention, the pair of outer plies constitutes a resistant carcass of the sleeve while the pair of internal plies form protective plies constituted by adjacent cords having a diameter less than half that of the cords of the outer plies of the carcass and forming with the generatrices angles not greater than the angles of the cords of the carcass plies.

Abstract: An expandible plug-like device is disclosed for insertion into a conduit for closing or sealing off the conduit. The device has a flexible and elastic hose that is reinforced by at least two reinforcement plies made of flexible metal cables. The hose is secured at least one end of the device by the reinforcement plies being locked or held by rigid closure elements. These elements include an inner support element, an outer support element and a bottom seal sealing element. The inner and outer elements have conical locking surfaces which diverge towards one end of the device and a wedge is arranged between the end edges of the reinforcement plies in order to lock the plies against the support element and the reinforcement element.

Abstract: Pneumatic deicer with multiple inflatable chambers made of rubberized fabric in which all of chambers (10) or of a group of chambers are made of a double rubberized fabric on its outer faces which form two separate layers (14.1-14.2) which are connected along spaced linear areas (15) which are interknit from one layer to the other to delimit the juxtaposed tubular chambers, characterized by the fact that the interknit linear zones are oriented in the longitudinal direction of the tricot and this double tricot is a Jersey tricot with a transverse extensibility rate which is equal to at least twice its longitudinal expandability.

Abstract: A tank installation comprising a tank having at least one flexible wall arranged to rest on a rigid apertured partition, which per se does not form part of the invention. A flexible duct is joined to said wall and is intended to pass through the aperture in the partition. One end of the duct is connected to the flexible wall of the tank by a folded-over portion located inside the tank, and the other end of the duct is arranged for connection to another device that is to be placed in communication with said tank.The other device may be a second tank which also comprises a flexible wall with a flexible duct substantially aligned with said flexible duct of said first tank, and the extremities of said two flexible ducts are joined to a rigid pipe. These two tanks may be adjacent, the flexible duct of said second tank being directed towards the inside of the second tank and the rigid pipe is located within the second tank.

Abstract: A segmented mold for molding tire casings has a fixed lower mold part for molding one side wall of the tire, a series of molding segments for molding the tread movably mounted on the lower mold part to be slidable and swingable along radial planes, an axially movable upper mold part for molding the other side wall of the tire, and means cooperating with the segments to effect the movement thereof along the radial planes. The mold also has elastic members interposed between the fixed lower mold part and the segments for continously urging each of said segments toward an open position in which the segments are radially retracted and swung upward and to the outside of the mold to free a passage for the tire when the upper mold part is lifted off. These members include a first spring for pulling each segment radially outward and a second spring for tilting each segment vertically upward toward an open position.

Abstract: Safety tire comprising a tread (11) reinforced by an inextensible belt (23), spaced beads (12), and side walls (14) connecting the beads to the sides of the tread, defining below the latter a central inflatable chamber (15), each side wall at least being reinforced by a carcass (21), and comprising on the inside of the carcass a supporting shaped part or support member (20) of lenticular section, made of an elastomer and extending from the vicinity of the beads (12) to below the edges of the belt, said tire being characterized in that the said shaped supporting parts (20) are constituted by two parts with different flexibility, whereof one (20.sub.1) disposed near the inner face of the carcass (21) is of a more flexible elastomer while the other (20.sub.2) disposed inside the tire is of less flexible elastomer.

Abstract: A floating anti-pollution barrier for combating water pollution and method of using the same is disclosed. The floating pockets of the barrier, the openings of which are downwardly disposed, are given their shape and kept in shape by masses of a material which is lighter than water. These masses preferably consist of a cellular material which is watertight and minimally compressible, of inflated bladders, or of air blown into the pockets. In a preferred embodiment in which the pockets are given shape by the masses, air enters the shaped pockets and is trapped therein to effect flotation of the barrier, and provisions are made for accommodating retention of the barrier at the surface of the water, even in the event that water fills the pockets, since the masses then act to effect the flotation of the barrier.

Abstract: A vehicle tire has a radial carcass and a reinforced crown and the tire beads each comprise at least one beadwire surmounted by a filler strip whose cross-section is broadly tapered towards the side-wall and which is made of a rubbery mixture reinforced with short fibres. According to the invention, the fibres reinforcing the filler strip are, at least in part, orientated in the radial direction of the tire so that the mixture used for the strip has a ratio of anisotropy at least equal to 2:1. The filler strip may rise up the side wall to a height of between 0.2 and 0.5 times the cross-sectional height of the tire.

Abstract: This invention relates to flexible hoses having a rubber body and a flange at each end thereof. The rubber body is strengthened by a reinforcement comprising continuous metal elements extending from one flange to the other and whose ohmic resistance from flange to flange needs to be high. The surfaces, of said flanges situated facing the metal elements of the reinforcement are covered with an insulating layer formed from a glass cloth having high mechanical strength and high electrical resistance and from a firm binder of high electrical resistance comprising an epoxy resin, the insulating layer adhering to the metal surfaces of the flanges and to the rubber body of the hose. The layer of glass cloth preferably consists of a plurality of plies which are superimposed and having filaments whose respective axes are at an angle of 45.degree..