B - Operations – Transporting – 29 – D
Patent
B - Operations, Transporting
29
D
154/18.5
B29D 30/32 (2006.01) B29D 30/24 (2006.01)
Patent
CA 1153291
In re application of EMERSON C. BRYANT For: TIRE BUILDING APPARATUS ABSTRACT A tire building apparatus having two end drums disposed on respective opposite sides of an intermediate drum, with the intermediate drum embodying an expandable. sleeve for pneumatically expanding and supporting the portion of a tire carcass to be disposed between the beads of a completed tire, and with the end drums carrying bead lock clamping members and ply turn-up bags that are movable inwardly toward the longitudinal center of the apparatus during the aforementioned expanding of the tire carcass, the bags being of dual-compartment construction, having inner compartments for effecting ply turn-up operations at air pressures greater than the air pressure for expanding and supporting the sleeve, and outer compartments for effecting additional sidewall- applying operations at internal air pressure less than the pressures in the inner compartments, and with the components of the intermediate drum and end drums being readily removable and replaceable for changing the size of the tire to be produced by the apparatus. .
357405
Bartell Machinery Systems L.l.c.
Osler Hoskin & Harcourt Llp
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