Industrie Pirelli S.p.a.

Antonio Pacciarini

Silvio Manini

Franco Bottasso

Bruno Colombani

Giorgio Bertoldo

A method and apparatus are provided for receiving a length or section of a tire tread or the like and transferring it to a storage truck. The apparatus has a cylindrical member which receives the section from an extruder or other source, inverts the section and deposits it on a first endless conveyor. A second conveyor is looped about the downstream roller of the first endless belt and receives the section from the first belt. A vertically movable carriage has an endless belt which carries the section from the second belt to a storage truck. A slide member movable in the same direction as the endless belts is provided for transferring a section from the carriage to a storage surface.

Apparatus for automatically turning over and for storing sections of

A process is provided for manufacturing radial tires for a motor vehicle having a radial carcass, a reinforcing structure with at least two layers of criss-crossed symmetrically arranged metallic cords forming a belt, and a tread. The process involves a series of steps which comprise: building up a carcass in a cylindrical configuration on a first expandable building drum and shaping the carcass into a toroidal configuration. A reinforcing belt is also formed by winding two layers of metallic cords on an auxiliary expandable drum with a diameter equal to the external diameter of the toroidal shaped carcass. The belt is maintained in slidable contact on the drum and shaped toroidally by expanding the auxiliary drum. The belt is then removed from the auxiliary drum and transferred with a tread band to the carcass on the first drum. The carcass is toroidal shaped again to assemble the carcass and belt. The assembly is vulcanized under pressure in a mold.

Process and apparatus for manufacturing radial tires

Method of automatically transferring a plurality of objects between two

An apparatus is provided for assembling reinforcing rings and bead filler with a vehicle tire carcass. The apparatus has an expandable drum and a device for centering and locking the rings on the drum. The device comprises a support member which is coaxial with the drum and has bars which form a cage slidably disposed on the drum. The device also has a centering device for centering the rings on the drum.

Apparatus for setting bead rings on the carcass of a vehicle tire

A method and apparatus are provided for receiving a length or section of a tire tread or the like and transferring it to a storage means. The apparatus has a cylindrical member which receives the section from an extruder or other source, inverts the section and deposits it on a first endless conveyor. A second conveyor is looped about the downstream roller of the first endless belt and receives the section from the first belt. A vertically movable carriage has an endless belt which carries the section from the second belt to a storage means. A slide member movable in the same direction as the endless belts is provided for transferring a section from the carriage to a storage surface.

Apparatus for storing objects on a vehicle

A method is disclosed for accurately and readily forming a continuous band of rubberized fabric having transversal reinforcing metal elements by butt-splicing wherein a first and second piece of rubberized fabric having transversal reinforcing metal elements are positioned such that the initial end of the second piece is a predetermined distance from the terminal end of the first piece on a common plane with the reinforcing metal cords running parallel to the ends of the pieces, butt-splicing the pieces, without overlapping, by mutually approaching the pieces, obtaining a uniform accumulation of the rubber of the rubberized fabric about the reinforcing cords as well as a local thickening of the latter at a zone symmetrically situated with respect to the contact surface of the ends and whose width is proportional to the pre-established distance wherein the pieces are bound by the operating parts of the splicing apparatus, releasing the pieces from the operating parts of the splicing apparatus and winding up the continuous band on a collecting drum. An apparatus for producing the continuous band is also disclosed where the operating parts have a base element and a movable ledger capable of locking the pieces of rubberized fabric on a common plane by a series of fingers.

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Milan, Italy

Antonio Pacciarini