Abstract: A large format table-top cutting apparatus includes a cutter bar assembly configured to in use support and guide a cutting head to cut material located below the cutter bar assembly; a lifting mechanism configured to raise and lower the cutter bar assembly between an upper position and a lower position The cutter bar assembly includes an elongate upper and lower supports connected by a link assembly so that these are arranged substantially parallel to one another and can move relative to one another along their longitudinal axes, and a raising assembly configured for adjustment by a user to exert a variable force on the lower part of the upper support at one end so as to place the upper support in tension and raise the free-hanging central portion of the upper support.

Abstract: Disclosed are to a transfer apparatus and a method for transferring plies onto a carcass package on a tire building drum. The transfer apparatus includes a transfer ring with first ring segments and a frame that extends in a circumferential direction about a central axis for holding the first ring segments in first angular positions distributed in the circumferential direction along the frame, wherein the first ring segments are movable relative to the frame in a radial direction from a first radial distance to a second radial distance from the central axis that is smaller than the first radial distance. The transfer apparatus further includes a first rolling device that is positionable in a second angular position interposed between the first angular positions, and a second ring segment that is positionable in the second angular position at the second radial distance from the central axis.

Abstract: A method and device for manufacturing the tire are provided. For each tire obtained by feeding green tires having an identical specification into an identical vulcanizer, using an arrangement mechanism, with circumferential positions of the green tires varied with respect to the vulcanizer and vulcanizing the green tires, a storage unit stores characteristic value data of at least one of a UF or DB value and feed position data identifying the circumferential position of the green tires, a calculation unit calculates, based on the stored data, the circumferential position of the green tires with respect to the vulcanizer at which a characteristic value related to the characteristic value data is brought within a tolerance range, and feeding using the arrangement mechanism, into the vulcanizer, the green tire to be newly vulcanized while adjusting the green tire to the circumferential position with respect to the vulcanizer being calculated.

Abstract: A method of manufacturing a tire product comprising: a step of preparing a core-assembly 4 of a rigid core 2 and a rubber member 3 formed on the rigid core 2, wherein the rigid core 2 is attached to a spindle device 7, and the rubber member 3 is to be vulcanization-molded, and constitutes all or a portion of a green tire, a step of conveying the core-assembly 4 from the spindle device 7 into a mold 50, and a step of vulcanization-molding the rubber member 3 on the rigid core 2 in the mold 50. The conveying of the core-assembly includes obtaining the weight of the rubber member 3 included in the core-assembly 4.

Abstract: A tire comprising an innerliner, where the innerliner includes a rubber, a first carbon black having a statistical thickness surface area of at least 50 m2/g, and a second carbon black having a statistical thickness surface area of at most 45 m2/g.

Abstract: A method for making a carcass for a pneumatic vehicle tire includes building up a carcass free from sidewalls with an inner liner, a single-ply or multi-ply carcass inlay and bead cores, at a carcass station on a carcass building drum, while creating ply turnups. The carcass produced without sidewalls is transferred to a transfer device. The carcass is kept on the transfer device while applying sidewalls to the carcass. The carcass is retained on the transfer device while transferring the carcass provided with the sidewalls to a shaping machine where the carcass is shaped into a toroidal shape.

Abstract: A transfer ring of the type having a plurality of shoes arranged in a substantially circular configuration to define an inwardly-facing segmented cylindrical gripping surface, and a shoe for use in such a transfer ring, are disclosed. Each shoe comprises an arcuate interior surface defining a segment of the cylindrical gripping surface. The interior surface of each shoe has a first arcuate edge and an opposite second arcuate edge arranged substantially parallel to one another, and opposite first and second end edges extending between respective ends of said first and second arcuate edges. Each first end edge of each arcuate surface is mounted adjacent the second end edge of an adjacent arcuate surface, and the first end edge of at least one of the arcuate surfaces defines a varied or irregular shape along its arcuate surface.

Abstract: The invention relates to an apparatus and a method of forming an annular apex filler for tire beads. Said apparatus comprises a cylindrical former (2) for supporting a cut length of an apex filler strip (91) of elastomeric material, wherein said cylindrical former (2) comprises a hollow rotary shaft (21) and a plurality of rigid, circumferentially spaced apart fingers (22). The fingers (22) are movably connected to support members (24) for flipping the apex filler when wound on the cylindrical former. The support members (24) are movable connected to substantially radially extending guiding members (25). The guiding members (25) are connected to a hollow rotary shaft (21). The fingers (22) are connected via linkages (27) to a driving member (281) which is connected to a push/pull shaft (28) which extends at least partially through the hollow rotary shaft (21).

Abstract: A tire manufacturing apparatus and a tire manufacturing method capable of efficiently manufacturing quality tire by uniformly expanding the diameter of an annular tread and mounting the tread on a base tire without axial deviation. The tire manufacturing apparatus for mounting an annular tread on the outer periphery of a base tire includes a drum for securing a base tire, a plurality of holding means each having a holding surface for holding the outer periphery of the annular tread, a moving means for moving the holding means along the central axis of the base tire, a sealing means for sealing the opening on one side of the annular tread, and an air supplying means for supplying air into a space surrounded by the annular tread and the sealing means.

Abstract: In an assembly station a carcass sleeve and an outer sleeve manufactured along respective building lines are mutually coupled. Integrated into the assembly station are engagement devices that can be alternatively coupled to an auxiliary drum carrying an outer sleeve and to a building drum carrying a carcass sleeve. A grip unit picks up the outer sleeve from the auxiliary drum associated with the engagement devices in order to position it to a location radially external to the carcass sleeve carried by the building drum associated with the engagement devices in place of the auxiliary drum. Shaping devices that can be operatively coupled to the building drum cause radial expansion of the carcass sleeve so as to enable the latter to be coupled to the outer sleeve retained by the grip unit.

Abstract: An annular rubber member is molded, across a through hole, on a support surface of a support device that includes the support surface and the through hole which opens to the support surface. The rubber member molded on the support surface is arranged so as to oppose a sidewall unit of a shaped tire intermediate body. The support device is moved close to the tire intermediate body and the rubber member on the support surface is brought into contact with the sidewall unit. The rubber member is adhered to the sidewall by moving the press member that presses the rubber member to the side wall unit via the through hole, in a tire radial direction.

Abstract: The present application is directed to a method for applying a flexible annular strip to a radially inward oriented surface of a tire. Moreover, the present invention is directed to a corresponding apparatus for carrying out the above method.

Abstract: In the field of tire building, underbelt inserts are applied to an expandable support associated with an auxiliary drum on which the belt structure is made, simultaneously with manufacture of a carcass structure on a primary drum. Following expansion of the expandable support, the underbelt inserts are applied to the belt structure that can be directly made on the support itself in an expanded condition. The belt structure together with the underbelt inserts and a tread band are then transferred onto the carcass structure formed on the primary drum to complete building of the tire following shaping of the carcass into a toroidal conformation.

Abstract: A transfer ring suitable for use in the manufacture of vehicle tires including a skeletal cylindrical cage which houses an oscillatable circular drive member. The drive member includes a plurality of cam followers disposed about the outer perimeter thereof and which operatively engage respective camming grooves defined in each of a plurality of hinged driven links which are individually hingedly mounted internally of the cage about the outer perimeter of the cage. Each driven link includes an inboard end hinged within the cage and an outboard end having an articulating shoe mounted thereon. The shoes are interconnected to provide like simultaneous substantially equal articulative and rotational movement of the shoes radially inwardly or radially outwardly of the cage upon rotational movement of the drive member and resultant rotational movement of the hinged driven links effected through the cam followers and camming grooves of the driven links.

Abstract: A run-flat pneumatic tire assembly includes a pneumatic tire having an elastomeric casing and a tire cavity formed therein. A longitudinally-extending and approximately planar length of strip material is helically arranged within the tire cavity to pre-stress the length of strip material for usage of the pneumatic tire during under-inflated and non-inflated conditions. A method of making a run-flat pneumatic tire assembly is also included.

Abstract: Provided is a process of manufacturing a pneumatic tire, which prevents blisters from being raised on a cylindrical thermoplastic resin film due to an air pocket even in a case where the cylindrical thermoplastic resin film is used as an air permeation preventive layer. Provided is the manufacturing process suitable for a heavy-duty pneumatic tire in particular. The process of manufacturing a pneumatic tire includes: covering the making drum 20 with a cylindrical thermoplastic resin film 6; winding an uncured rubber sheet member 7 as a tie rubber around the thermoplastic resin film 6; and winding a carcass layer 5 around the rubber sheet member 7. The process is characterized in that the rubber sheet member 7 is wound in the circumferential direction of the tire at least twice.

Abstract: A transfer ring for supporting a belt and tread package about a tire carcass for inflation of the carcass within the package during a tire-making process includes a plurality of shoes which are movable inwardly and outwardly for purposes of grasping or releasing a package positioned between the shoes. Components are provided for moving the shoes inwardly to a radial position about a package; and at this radial position, the shoes apply to the package a biasing force for maintaining a substantial uniform pressure about the package if it were to contract in size after the shoes are moved to the radial position. A braking arrangement is provided which prevents the shoes from moving outwardly of the radial position when a tire carcass is thereafter inflated within the package to thereby limit the diameter of the package during the carcass-inflating process.

Abstract: A tire manufacturing method includes a method for optimizing the uniformity of a tire by reducing the after cure radial force variation. The after cure radial force variation vector is modeled as a vector sum of each of the vectors representing contributions arising from the tire building steps—the “tire room effect vector” and a vector representing contributions arising from the vulcanization and uniformity measurement steps—the “curing room effect vector.” In further detail, both the tire room and curing room effect vectors can be further decomposed into sub-vectors representing each radial force variation contribution for which a measurable indicator is available. For a series of tires, the method obtains such measurements as the before cure radial runout (RRO) at one or more stages of the building sequence, measurements of loading angles on the tire building equipment, and measurements made during vulcanization process.

Abstract: A process for assembling a tire, including producing a crown of said tire on a drum of variable diameter of a generally cylindrical form.

Abstract: A transfer ring especially suitable for use in the manufacture of vehicle tires including a skeletal cylindrical cage which houses an oscillatable circular drive member therewithin. The drive member includes a plurality of cam followers disposed about the outer perimeter thereof and which operatively engage respective camming grooves defined in each of a plurality of hinged driven links which are individually hingedly mounted internally of the cage about the outer perimeter of the cage. Each driven link includes an inboard end hinged within the cage and an outboard end having an articulating shoe mounted thereon. The shoes on the several driven links are interconnected to provide like simultaneous substantially equal articulative and rotational movement of the shoes radially inwardly or radially outwardly of the cage upon rotational movement of the drive member and resultant rotational movement of the hinged driven links effected through the cam followers and camming grooves of the driven links.

Abstract: A belt package for a pneumatic vehicle tire has at least two belt plies. The belt plies are built up in at least two sub-packages, which are automatically placed on a belt drum and automatically spliced independently of one another. The sub-packages are then joined together to form the complete belt package.

Abstract: The constituent elements of a carcass structure of a tire are formed by laying elementary components on a building support including an inflatable bladder set in an inflated condition in which it substantially reproduces the inner configuration of the carcass structure to be obtained. A belt structure carrying a tread band, both produced separately, is coaxially disposed around the carcass structure formed on the building support and applied thereto following a radial expansion of the inflatable bladder. In a vulcanization mold, the building support is submitted to an over-inflation step to press the tire against the inner walls of the mold. The circumferential edges of the inflatable bladder are in engagement with respective anchoring flanges with possibility of movement in a radial direction, so as to be submitted to an elastic expansion during the over-inflation step.

Abstract: The invention relates to a device (1) consisting an intra-gastric balloon for treating morbid obesity, or a gastric ring for treating obesity, wherein said device (1) is to be in contact, on at least a fraction of the surface thereof, with at least one bodily fluid when implanted, said device (1) being characterised in that the same comprises a first coating (4) at least partially covering said surface fraction, said first coating (4) including at least a first material containing at least a silicon oxide and/or at least a silane and/or at least a siloxane and/or at least a carbosilicate compound in order to improve the tightness of said surface fraction to said bodily fluid. The invention can be used for implantable medical devices.

Abstract: Provided is a method of manufacturing a pneumatic tire, which is capable of reducing tire failure without leading to reduction in productivity, the method including: folding a cylindrical film made of thermoplastic resin or thermoplastic elastomer composition into a sheet shape; stacking rubber layers on both surfaces of the folded film in a manner that the rubber layers protrude from both edge portions of the film; forming a laminate by cutting protruding parts of the rubber layers into rubber protruding portions each having an amount of protrusion (h) in a range from 3 mm to 20 mm; expanding the laminate into a cylindrical shape and fitting the laminate onto a tire making drum; pressing down each rubber protruding portion toward the surface of the drum by use of a pressure roller; pasting other components of a tire onto the laminate to form an uncured tire; and curing the uncured tire.

Abstract: Device and method for building a radial tire. The device includes a first drum device for building a belt package and a transfer device for transferring the belt package from the first drum device to a second drum device having arranged thereon a carcass tube from at least one airtight inner layer, a carcass play and two bead cores with core profiles. The second drum device is arranged between core clamping devices and is structured and arranged to join the carcass tube and the belt package during expansion of the second drum device. The belt package is contoured or shaped by deformation via the second drum device. This abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.

Abstract: Apparatus and method in the use thereof attaches an annular transponder unit to an annular tire surface, the transponder unit being of a type having a sensor housing coupled to an annular antenna. The apparatus includes a rotary turntable for supportably rotating a tire having an annular tire surface in an accessible disposition and an arm proximately disposed to the turntable and having end-of-arm tooling for attaching the transponder unit section by section to the annular tire surface as the tire is rotated. The tooling includes a gripping mechanism engaging the sensor housing and placing the sensor housing at a preselected location on the annular tire surface and a guide mechanism engaging the annular antenna and positioning the annular antenna section by section along the annular tire surface as the tire is rotated.

Abstract: A process for building tyres for vehicle wheels wherein each tyre includes a carcass structure and a crown structure, the crown structure including a belt structure including a first radially inner belt layer and at least one second belt layer radially external to the first belt layer, the process including the steps of: a) placing an annular assembly including a first radially inner belt layer and at least one second radially outer belt layer on at least one auxiliary turning up drum; b) defining at least one pair of folding lines in axially opposite positions of the annular assembly by respective abutment devices radially external to the auxiliary turning up drum; c) adjusting the axial position of the folding lines relative to a centre line plane of the auxiliary turning up drum; and d) turning up, at the folding lines, at least a part of end portions of the first belt layer axially protruding relative to the at least one second belt layer on the at least one second belt layer of the annular assembly.

Abstract: A method for manufacturing a pneumatic tire with tread grooves comprises: building a green tire, and vulcanizing the green tire in a mold, wherein the building of the green tire includes making a tread rubber by overlap-winding a raw rubber tape, and the mold is provided with protrusions for molding the tread grooves on the tread rubber. During vulcanizing the green tire in the mold, one of the protrusions is positioned radially outside an end of the raw rubber tape so that the end is relatively pressed radially inwards of the tire by the protrusion.

Abstract: A method is disclosed for reducing separation of ribbon layers of a ribbon-layered body formed by extruding rubber into ribbon-shape and spirally wrapping it around a cylindrical support axially, making overlaps, which occurs when the ribbon-layered body is pressed at axially both ends from the periphery. A ribbon-tread 1 includes a center part 1a, a left part 1b, and a right part 1c. With respect to the left part 1b and the center part 1a of this ribbon-tread, the ribbon is layered from the end toward the center, and with respect to the right part 1c, the ribbon is layered from the end toward the center, axially of a tire (horizontal direction in the drawing). Because the ribbon-shaped rubber in the right part 1c is layered toward the center part 1a in the same way as the left part 1b, separation of the ribbon layers in the right part 1c, which occurs when both ends of the ribbon-tread is pressed from the radially outside of the tire, is reduced.

Abstract: It is an object of the present invention to precisely and efficiently paste a tread ring and a raw tire base body with each other. A ring-like base body 5 is aligned with a former 3. The ring-like base body 5 relatively approaches and separates from a former 3. The ring-like base body 5 includes pasting means 6 which pastes a tread ring A to a raw tire base body B. The pasting means 6 includes a grasping tool 11 having a plurality of segments 13 which abut against an outer peripheral surface of the tread ring A to grasp the tread ring A. The pasting means 6 also includes a pushing-down pasting tool 12 having an annular rubber tube body 15. The rubber tube body 15 is disposed on each side of the segment 13 and pushes down a shoulder side portion As of the tread ring A by expansion to paste the shoulder side portion As to the raw tire base body B.

Abstract: A self-sealing tire according to the present invention includes a pneumatic tire and a puncture sealing layer disposed over a whole tire inner wall surface from one shoulder portion to the other shoulder portion of the pneumatic tire. The puncture sealing layer comprises an annular sponge layer which is impregnated with an adhesive so as to be exposed on a radially outer surface side thereof, and a bonding layer of an adhesive which is provided on a radially outer surface of the sponge layer and is adhered to the tire inner wall surface. The sponge layer is provided in a compressed state. The puncture sealing layer is press attached to the tire inner wall surface by a recovery force of the compressed sponge layer.

Abstract: A method and apparatus for forming a core of plies, belts and beads and for positioning the core in a mold for forming an elastomeric tire. The core is built up on a mandrel of the inner mold that is formed from hard foam core segments positioned between top and bottom hub plates, around a center hub that includes flow passages formed therethrough and through the hub plates. Plies for building the core are formed as a woven sleeve for passage along an expander cone and over the mandrel whereon a separator has been positioned, and a bead is passed over each sleeve end that receives a bead centering plate fitted through the sleeve, capturing the bead and positioning it on the mandrel side and provides for folding the plies end over the bead and up each mandrel side.

Abstract: In a method of making a pneumatic tire which comprises a tire main body and a tread rubber with axial edges, the inside diameter of the tread rubber being smaller at the axial edges than in the intermediate portion, the tire main body including an underlying component on which the axial edge of the tread rubber is stuck, the green tire is made by: making a raw tire main body including an underlying component; placing an annular raw tread rubber around the raw tire main body; swelling the raw tire main body by pressurizing the inside thereof; pushing the entire width of the raw tread rubber onto the swollen tire main body partially with respect to the tire circumferential direction; and conducting the circumferentially-partial pushing through the enter circumference of the raw tread rubber, whereby the axial edge of the raw tread rubber is stuck on the underlying component without being wrinkled.

Abstract: A carcass structure for a vehicle wheel tyre includes at least one carcass ply comprising thread elements substantially disposed transversely of a circumferential extension of the carcass structure, and at least one pair of annular reinforcing structures disposed close to respective inner circumferential edges of the at least one carcass ply. Each of the annular reinforcing structures includes at least one first circumferentially-inextensible annular insert formed of at least one first elongated element extending in concentric coils, and at least one second circumferentially-inextensible annular insert formed of at least one second elongated element extending in concentric coils. The at least one carcass ply has end flaps each turned back around an inner circumferential edge of a respective first annular insert and each axially interposed between respective first and second annular inserts. A method of manufacturing the carcass structure is also disclosed.

Abstract: It is an object of the present invention to precisely and efficiently paste a tread ring and a raw tire base body with each other. A ring-like base body 5 is aligned with a former 3. The ring-like base body 5 relatively approaches and separates from a former 3. The ring-like base body 5 includes pasting means 6 which pastes a tread ring A to a raw tire base body B. The pasting means 6 includes a grasping tool 11 having a plurality of segments 13 which abut against an outer peripheral surface of the tread ring A to grasp the tread ring A. The pasting means 6 also includes a pushing-down pasting tool 12 having an annular rubber tube body 15. The rubber tube body 15 is disposed on each side of the segment 13 and pushes down a shoulder side portion As of the tread ring A by expansion to paste the shoulder side portion As to the raw tire base body B.

Abstract: In accordance with one aspect of the present invention there is provided improved means for centering of a green vehicle tire carcass on a shaping drum. “Centering” as used herein and unless otherwise stated or obvious from the context of its use, includes positioning of the bead ring-containing. opposite ends of a carcass substantially equidistantly from the centerplane of the drum and substantially radially equidistant from, and substantially concentric about, the rotational axis of the drum.

Abstract: A method of arranging cyclic patterns in a tire tread is disclosed, wherein design cycles in each cyclic pattern are repeated in a pitch sequence; with respect to each of the design cycles, an averaged pitch of the pitch lengths of a predetermined number of subsequent design cycles is obtained; combinations of the sequences of the averaged pitches are defined by changing phase between the sequences; with respect to the averaged pitches of the combined sequences, crossover averages are obtained; from the crossover averages in each combination, a difference between a maximum and a minimum is obtained; from the differences of the combinations, a combination having a smaller difference is found; the cyclic patterns are arranged in accordance with the phase shift of the combination having the smaller difference.

Abstract: A process for improving the adhesion of a tire cover to dry ground includes providing a tire cover having a tread comprised of an electrically insulating material which is delimited radially by inner and outer faces and laterally by two lateral faces connecting between them the radially inner and outer faces of the tread, and further providing at least one circumferentially extending conductive layer which substantially connects the lateral faces to one another, the conductive layer having a resistivity less than that of the insulating material, which insulating material is provided radially on either side of the conductive layer in the tread.

Abstract: A method of preparing a cylindrical-shaped innerliner (10) for storage. The method involves converting the innerliner (10) from a cylinder into a solid torodially-shaped donut (10A).

Abstract: A process for the manufacture of a tire the beads of which are without anchoring bead wires and are reinforced by complexes of layers of reinforcement elements of low angle, around which complexes the radial carcass reinforcement is anchored by winding, said process being characterized in that each complex is produced independently of the carcass reinforcement blank, the manufacture of said complex including using at least one raw blank of reinforcement elements which are oriented at a higher angle than the angle to be obtained in the vulcanized state, subjecting said ply to pre-extension before formation of a two-layer sleeve, the pitch, angle and width characteristics of which are obtained by pantograph effect upon a second extension.

Abstract: A cord-embedded rubber tape, a tire component made by winding such a tape, and a pneumatic tire comprising such a tire component are disclosed, wherein the tape is made of unvulcanized rubber and at least one cord is embedded therein along the length of the tape. The unvulcanized rubber may include short fibers oriented in the longitudinal direction of the tape.

Abstract: A process and apparatus for laying a strip for the manufacture of a tire by extruding uncured rubber through a die to form a rubber tube on a rotary support and flattening the tubular form to form a band which is adhered to a receiving surface on the rotary support.

Abstract: Forming a tubular tire ply from a flat sheet of wire reinforced material, cutting the ply to length and applying the ply to a drum.

Abstract: Rubber composites, for example pneumatic tipes, can be made using seamless, tubular reinforcement (14). By pulling socks of seamless tubular reinforcement over, for example, a tire building drum (10), spliceless carcass reinforcement (18) and spliceless belts (64) can be incorporated into tires. Methods of treating the spliceless tubular material, by drawing and by adhesive coating, enhance its strength and adhesion to rubber.

Abstract: A method of manufacturing a radial tire is disclosed, wherein a tread ring is formed separately from a tier main body by the sue of a tread ring forming apparatus. The radial tire comprises a belt having a camber and a band wound thereon. The tread ring is an annular assembly of a raw belt, a raw band wound thereon and a raw tread rubber. The tread ring forming apparatus comprising a belt drum made up of segments defining the drum circumference. In a cross section including the belt drum axis, the radially outer surface of each segment is a straight line parallel to the axis. In a cross section normal to the belt drum axis, the radiallly outer surface is an arc having one radius substantially equal to one half of the drum diameter, but the drum circumference is decreased in the belt edge portion than the central portion by increasing gaps between the segments.

Abstract: Means for measuring deviation measures a vertical deviation of a green tire from circularity while the green tire is clamped by a green tire building drum. The green tire to be formed is shaped into a complete circle according to the measured value.

Abstract: A method and unit for producing a road vehicle radial tire, whereby an impermeable innerliner (10) is applied to the inner surface of a toroidal tire carcass (3) by placing the innerliner (10) on a substantially cylindrical inner support (13), which is radially deformable to gradually assume a deformed configuration capable of mating with an inner surface of the carcass (3); the inner support (13) being fitted through the toroidal carcass (3) and through a toroidal outer support (14) housing the carcass (3), and being moved into the deformed configuration to lift the innerliner (10) towards the carcass (3) and compress the innerliner (10) against the inner surface of the carcass (3), (FIGS. 1 and 2).

Abstract: A tire support structure capable of spreading the beads of a tire for inspection and repair is supported by a mechanism for raising and lowering the structure. This permits the structure to be positioned in a lower position at a convenient height for a worker in an adjoining working position and permits the structure to be raised to an elevated position for retrieving a tire from an overhead conveyor system or delivering a tire to the conveyor system. A work bench is preferably located adjacent the worker position for supporting tools and supplies for repairing the tire.

Abstract: A method of forming a complete carcass of a tire, whereby an inner carcass (5) of the tire, formed on a collapsible forming device (2) supporting the beads (8) of the inner carcass (5), is inserted, together with the collapsible forming device (2), inside a toroidal body (19) supporting, internally, an outer carcass (9); is made to adhere to the outer carcass (9) to form the complete carcass; is clamped with respect to the toroidal body (19) by means of a pair of fastening rings (24) fitted laterally to the toroidal body (19) and having radial arms (26) for supporting and clamping the two beads (8); and, finally, is detached from the forming device (2) by collapsing and extracting the forming device (2) from the toroidal body (19).

Abstract: Means for measuring deviation measures a vertical deviation of a green tire from circularity while the green tire is clamped by a green tire building drum. The green tire to be formed is shaped into a complete circle according to the measured value.