Abstract: An improvement of an airplane tire to obtain a more even distribution of temperature within the crown of the tire. An airplane tire comprises a crown reinforced by a working reinforcement (3), comprising at least one layer of working reinforcement (30) comprising axially juxtaposed substantially circumferential strips (31) comprising mutually parallel textile reinforcing elements (32) coated with a polymer coating material (33). Each strip of at least one layer of working reinforcement is in contact, over at least its radially inner axial face, with a heat transfer element (34) comprising mutually parallel substantially circumferential threadlike elements (35) made of a heat-conducting material with thermal conductivity at least equal to 50 times the thermal conductivity of the polymer coating material. Heat transfer element (34) comprises substantially circumferential threadlike elements (35) that have periodic geometric oscillations parallel to the strip in contact.

Abstract: A method for simplifying the conventional pressure monitoring and/or adjustment method for a mounted assembly for a vehicle, in particular for a two-wheeled vehicle, and, more precisely, reducing the number of steps in the method, and a pressure monitoring and/or adjustment device for the use of this method. A mounted assembly (31) is composed of a tire (32), preferably tubeless, mounted on a rim (33) and inflated to an initial pressure, the tire comprising an inner surface forming the wall (34) of the tire cavity, in contact with the internal air, the wall of the tire cavity being at least partially covered with a self-sealing material (35).

Abstract: During the process for production of a rubber mass the rubber mass is mixed in a mixing tank (12) by means of mechanical means (34); then, the movement of the mechanical means (34) for mixing of the rubber mass is interrupted; then, with the mechanical mixing means (34) stopped, the tank (12) is opened by displacing a door (18) for shutting of an opening (16) for discharge of the rubber mass from the tank (12), according to an opening trajectory between a position of shutting of the opening (16), towards a position of release of the opening (16); the positions of shutting and release corresponding to the ends of the opening trajectory; then, with the tank (12) open, the movement of the mechanical means (34) for mixing of the rubber mass is restarted when the door (18) is in a predetermined intermediate position of its trajectory between the positions of shutting and release.

Abstract: A tire comprising two beads, each bead comprising an annular reinforcing structure, a carcass reinforcement, anchored in the two beads by a turn-up around the annular reinforcing structure, so as to form a main portion and a wrapped-around portion. Each bead comprises a bead filler situated at least partially between the main portion and the wrapped-around portion of the carcass reinforcement. Each bead further comprises an outer strip situated axially on the outside of the wrapped-around portion of the carcass reinforcement. The bead filler has a thickness E(r), this thickness corresponding to the length of the intersection of the direction perpendicular to the main portion of the carcass reinforcement with the bead filler, r denoting the distance separating the point of intersection of the direction perpendicular to the main portion of the carcass reinforcement with the carcass reinforcement from the radially innermost point of the annular reinforcing structure.

Abstract: The invention relates to a tire with a radial carcass reinforcement comprising a crown reinforcement, itself radially capped with a tread, comprising at least two circumferentially continuous cutouts, the said tread being connected to two beads via two sidewalls. According to the invention, the crown reinforcement comprises at least one axially continuous multilayer laminate, the said laminate comprising at least one multiaxially stretched thermoplastic polymer film positioned between and in contact with two layers of rubber composition, and in a meridian plane, the axial ends of the laminate being axially on the outside of the axially outermost point of two different circumferentially continuous cutouts.

Abstract: An amplification device with frequency drift for a pulsed laser includes a stretcher temporally stretching an incident laser pulse, at least one amplifying medium for amplifying the stretched laser pulse, and a compressor for temporally compressing the stretched and amplified laser pulse. The compressor includes an amplifying medium for amplifying a partially temporally compressed laser pulse, increasing energy yield of the amplifier.

Abstract: A tyre for heavy goods vehicle comprising a tread with a thickness E having a tread surface, an asymmetrical sculpture design over at least one thickness equal to 30% of the thickness of the tread, forming an outer portion of axial width LE to be positioned axially towards the outside of a vehicle when the tyre is fitted and an inner portion of axial width LI situated in the axial extension of the outer portion, the inner portion and the outer portion separated by a groove of generally circumferential orientation, the outer portion of the tread comprising, in the circumferential direction, a succession of rigid strips of circumferential width D11 and of axial width LE having no groove or cavity opening onto the tread surface in the new state and of flexible strips of circumferential width D12 and of axial width LE provided with grooves extending over the whole circumferential width D12 of these flexible strips, the rigid strips having a circumferential width D11 at least equal to 7% of the axial width LE of t

Abstract: A tire for a motorized two-wheeled vehicle comprising a reinforcing structure of the carcass type, made up of reinforcing elements, anchored on each side of the tire to a bead the base of which is intended to be mounted on a rim seat, each bead being extended radially outward by a sidewall, the sidewalls radially toward the outside joining to a tread. At least the central part of the tread comprises at least one circumferentially continuous cut, the cut being made up, for at least 80% of its length of at least one incision and at most 20% of at least one part having a width greater than that of an incision and the apparent area of the at least one incision is greater than the apparent area of the at least one part having a width greater than that of an incision.

Abstract: A tire for a motorized two-wheeled vehicle comprising a reinforcing structure of the carcass type, made up of reinforcing elements, anchored on each side of the tire to a bead the base of which is intended to be mounted on a rim seat, each bead being extended radially outwards by a sidewall, the sidewalls radially towards the outside joining to a tread comprising incisions. The length of the incisions is less than 1.2 times the width of the area of the contact patch and at least one incision has at least one end which ends in a cut in the tread the width of which is greater than 2.5 mm and the length of which is between 2.5 and 10 mm.

Abstract: An inflatable article is provided with an elastomer layer that is airtight towards inflation gases. The elastomer layer includes at least one rubber composition, and the rubber composition includes at least: as a non-thermoplastic elastomer, a butyl rubber, used alone or as a blend with one or more other non-thermoplastic elastomers (preferably diene elastomers); a crosslinking system; optionally a reinforcing filler at a content within a range from 0 to 120 phr; and a thermoplastic elastomer that includes a polyisobutylene block. A content of the thermoplastic elastomer is within a range from 3 to 80 parts by weight per 100 parts of non-thermoplastic elastomer.

Abstract: A vehicle of motorcycle type comprising at least two axle systems each equipped with a mounted assembly consisting of a wheel and a tire. Each of the tires comprises, in each sidewall, at least one additional layer of reinforcing elements forming with the circumferential direction an angle of between 20° and 60°, the orientation of the reinforcing elements of the additional layer in a sidewall being symmetrical to the orientation of the reinforcing elements of the additional layer in the other sidewall in relation to the equatorial plane, the angle formed by the plane comprising a reinforcing element of an additional layer with a radial plane comprising the radially inner end of said reinforcing element being oriented in the direction of rotation of the mounted assembly corresponding to the forward movement of the vehicle in the rear tire and in the opposite direction in the front tire.

Abstract: The present invention relates to a novel organometallic compound based on a divalent metal belonging to the 2nd column of the Periodic Table that can be used as an alkylating agent in a catalytic system based on a rare-earth metal. This novel compound corresponds to the formula: in which, M is a metal belonging to the 2nd column of the Periodic Table, chosen from Be, Mg, Sr, Ba, and Ra; R1, R2, R3 and R4 are hydrogen atoms or alkyl or aryl substituents, optionally bonded together to form at least one ring or at least one aromatic ring; R and R? denote alkyl or aryl substituents; L is a Lewis base; x is an integer from 0 to 4; m is an integer greater than or equal to 0; and n is an integer greater than or equal to 1.

Abstract: A power wrench including a housing, a rotation motor, a reduction gearing connecting the motor to an output shaft, and a separate gearing casing which is rotatively and detachably mounted on the housing and supporting the output shaft. The reduction gearing is divided into a first gearing stage located in the housing and a second gearing stage located in the separate gearing casing. The first gearing stage and the second gearing stage are interconnected via an intermediate spindle, and the motor is connected to the first gearing stage via a hollow drive shaft surrounding the intermediate spindle and an angle gear. A torque sensor is associated with the first gearing stage in the form of strain gauges mounted on an elastically deformable sleeve connecting a ring gear of the first gearing stage to the housing.

Abstract: The invention relates to a tire curing mold comprising at least one lining element for molding the tread of said tire, said lining element comprising at least one bead for molding a groove in the tread. The curing mold comprises at least one insert forming a portion of the bead, said insert partially or completely delimiting a slot extending into the depth of the bead. The slot is oriented substantially perpendicularly to the bead. The slot is configured in order to mold a flexible wall of reduced thickness made as one piece with at least one wall of the groove molded by the bead.

Abstract: The invention relates to a method for designing a curing mould for a tyre comprising at least one audible wear indicator, including the following steps (200-210): an initial population is defined, comprising a mould model having at least one characteristic relating to the wear indicator, a modified population is generated, comprising at least one mould model having at least one characteristic relating to the wear indicator produced by modifying at least one characteristic of at least one mould model of the initial population, at least one performance indicator is determined for each mould model in an evaluation population comprising at least one mould model of the modified population, based on at least one characteristic of each mould model of the evaluation population, one or more mould models of the evaluation population are selected on the basis of the performance indicator or indicators.

Abstract: A method for inspecting tyre tread, having circumferentially juxtaposed elements separated by identically shaped boundaries and having patterns arranged in a predetermined sequence, includes: acquiring an image of a surface of the tyre tread, the image including pixels associated with a light-intensity level; transforming the image by circumferentially offsetting pixels located axially at a same distance (x1, x2) from a given circumferential reference (OY), by an inverse (?y1, ?y2) of a circumferential offset (y1, y2) with respect to an axial line (OX) of a point (P1, P2) located on a boundary line of known shape at the same axial distance (x1, x2) from the circumferential reference (OY), such that boundaries between elements appear as straight traces orientated in an axial direction; and analyzing the image to identify points located on an axially orientated straight line, the points being treated as points located on a boundary line between two elements.

Abstract: Cutting device (2) for cutting a reinforcing ply (N) formed of a set of portions of thread, of given length, coated in a rubber compound, laid parallel to one another and making a given theoretical angle (a) with the longitudinal direction of the ply, characterized in that it comprises a first means (23) able, without proceeding to cut the said ply (N), to estimate the actual angle of the threads with the longitudinal direction (XX?) of the device and a second means (25) able to cut the ply (N) at the actual angle (a+da) estimated by the first means (23).

Abstract: Elastomer composition having a self-sealing property which can be used in particular as puncture-resistant layer in an inflatable article, based on at least (phr meaning parts by weight per 100 parts of solid elastomer): a blend of at least two solid elastomers, a polybutadiene or butadiene copolymer elastomer, referred to as “elastomer A”, and a natural rubber or synthetic polyisoprene elastomer, referred to as “elastomer B”, the elastomer A:elastomer B ratio by weight being within a range from 10:90 to 90:10; between 30 and 90 phr of a hydrocarbon resin; from 0 to less than 30 phr of filler. Inflatable article, such as a tire, provided with a puncture-resistant layer comprising a composition according to the invention; the puncture-resistant layer is advantageously used in combination with an airtight layer, for example based on butyl rubber or TPS elastomer, in order to form, in the inflatable article, an airtight and puncture-resistant laminate.

Abstract: An improvement in an airplane tire to obtain a more even distribution of temperature within the crown of the tire. An airplane tire comprises a crown reinforced by a working reinforcement (3), comprising at least one layer of working reinforcement (30) made up of axially juxtaposed substantially circumferential strips (31) made up of mutually parallel textile reinforcing elements (32) coated with a polymer coating material (33). Each strip is in contact, over at least its radially inner axial face, with a heat transfer element (34) comprising at least one heat-conducting material with thermal conductivity at least equal to 50 times the thermal conductivity of the polymer coating material. The product of the thickness of a heat transfer element by the tension modulus of a heat transfer element is at most equal to 0.3 times the product of the thickness of the strip by the tension modulus of the strip.

Abstract: Process for the manufacture of an elastomer composition having a self-sealing property which is based on at least (phr meaning parts by weight per 100 parts of solid elastomer): a blend of at least two solid elastomers, a polybutadiene or butadiene copolymer elastomer, referred to as “elastomer A”, and a natural rubber or synthetic polyisoprene elastomer, referred to as “elastomer B”, the elastomer A:elastomer B ratio by weight being within a range from 10:90 to 90:10; between 30 and 90 phr of a hydrocarbon resin; from 0 to less than 30 phr of filler, in which, during a first stage or stage (a), a masterbatch comprising at least the elastomers A and B and between 30 and 90 phr of a hydrocarbon resin is prepared by mixing these various components in a mixer at a “hot compounding” temperature or up to a “hot compounding” temperature which is greater than the softening temperature of the hydrocarbon resin.