Tire manufacture

Details Tire manufacture Tire manufacture

1975-05-28

1977-10-25

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

264275, 264326, 264328, B29D 302, B29H 312

Patent

active

040556190

ABSTRACT:
In moulding the tread portion of a pneumatic tire to have a breaker structure incorporated therein the breaker is built in an annular mould cavity to have a radially outermost 90.degree. ply consisting of parallel cords extending axially of the cavity, and uncured rubber is introduced into the cavity through an annular gate surrounding the cavity so as to spread axially of the cavity. As the introduced uncured rubber does not move circumferentially of the cavity it has no tendency to displace the breaker cords.

REFERENCES:
patent: 2744290 (1956-05-01), Corson
patent: 2985214 (1961-05-01), Lugli
patent: 3224481 (1965-12-01), Lugli

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