Dunlop Gmbh

James N McGlashen

Anthony Gerald Goodfellow

Eric Holroyd

A method and apparatus for adhesively applying cover pieces to a resilient tennis ball core. In one embodiment the exterior of the core is subjected to vacuum to expand the core while the covers, positioned in a flat orientation, are applied and adhesively secured with the vacuum then released. In another embodiment the cover pieces are cut undersize and longitudinally stretched immediately prior to their adhesive application.

Apparatus for the manufacture of balls

Method of making balls

A method for making tires. The tire is first formed in two or more parts from uncured rubber, in mould cavities provided with locking sprues to retain the moulded tire part in a desired section of the moulding. The mould is pressurized, at least when moulding the tire sidewalls, then opened and the moulded uncured tire parts carried in parts of the mould are brought together and joined under heat and pressure.

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Winstanley, near Wigan, United Kingdom

James N McGlashen