B - Operations – Transporting – 29 – D
Patent
B - Operations, Transporting
29
D
18/133
B29D 30/56 (2006.01) B29C 33/00 (2006.01)
Patent
CA 1055209
ABSTRACT OF THE DISCLOSURE The present invention provides an apparatus for support- ing a tyre during the retarding thereof whilst a strip of pre- molded tread is applied to the suitably prepared outside surface thereof with a bonding strip interposed between said strip and said surface of said tyre, said apparatus comprising a rim which supports said tyre and a protective casing which closely encircles said strips and the sidewalls of the tyre and extends up to the vicinity of bending a said tyre, said rim comprising a pair of coaxial tubular members a first member of which is insert- able in a second member thereof, said members each having parts disposed around their circumference parts which are adapted to be connected to each other in a free complementary manner on inserting said first member into said second member, said parts having a plurality of grooves aligned in groups perpendicular to the axis of said pair of members, said first member on insertion into said second member being releasably lockable therein by partial rotation of a disc accommodated in said groups of grooves between an open and closed position, each of said pair of members having a circumferencial rim portion which extends symmetrically with respect to a plane perpendicular to the axis of said rim, faces of said rim portions facing said tyre in said rim being dimensioned to curve the tyre beading and in portion of the side- walls thereof when said pair of members are locked together, each of said surfaces of said rim portion being provided with at least one groove extending in a direction parallel to the plane of symmetry each groove accommodating a sealing ring which serves to seal the protective casing against the side walls of the tyre in an air tight manner.
238281
Ital - Rubber S.r.l.
Na
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