Tire building machine

Claim 1

IN A TIRE BUILDING MACHINE; A FRAME, A TIRE BUILDING DRUM FOR RECEIVING A TIRE CARCASS, AN AUXILIARY DRUM LARGER THAN THE TIRE BUILDING DRUM FOR RECEIVING THERON A TREAD TO BE PLACED ON A CARCASS ON THE TIRE BUILDING DRUM, AND A TREAD HOLDING MEANS LARGER THAN SAID AUXILIARY DRUM FOR RECEIVING THEREIN A TREAD FROM SAID AUXILIARY DRUM AND TRANSFERRING IT TO A CARCASS ON SAID TIRE BUILDING DRUM, SAID DRUMS AND TREAD HOLDING MEANS BEING IN POSITIONS OF PARALLEL SPACED COAXIAL RELATION IN SAID FRAME WITH THE TIRE BUILDING DRUM REMOTE FROM THE FRAME AND HAVING ONE SIDE EXPOSED FOR THE REMOVAL OF A TIRE THEREFROM, MEANS IN THE FRAME MOVABLY INTERCONNECTING SAID DDRUMS AND TREAD HOLDING MEANS FOR RELATIVE AXIAL MOVEMENT THEREOF TO BRING SAID TREAD HOLDING MEANS FROM SAID POSITION OF SPACED RELATION TO SAID DRUMS INTO SELECTIVE COPLANAR SURROUNDING RELATION WITH SAID RESPECTIVE DRUMS, SAID AUXILIARY DRUM BEING RADIALLY EXPANSIBLE AND CONTRACTABLE, MEANS LOCATED EXTERNALL Y OF SAID TREAD HOLDING MEAN FOR SELECTEIVELY RADIALLY EXPANDING AND CONTRACTING SAID TREAD HOLDING MEANS, SAID TIRE BUILDING DRUM COMPRISING AXIALLY SPACED BEAD RINGS HAVING BEAD SUPPORTING SURFACES FACING EACH OTHER AND A FLEXIBLE CYLINDRICAL MEMBER FIXED TO AND EXTENDING BETWEEN SAID RINGS, MEANS FOR SUPPLYING FLUID UNDER PRESSURE TO THE INSIDE OF SAID CYLINDRICAL MEMBER TO EXPAND SAID CYLINDRICAL MEMBER RADIALLY, THE ONE SAID BEAD RING ON SAID ONE SIDE OF SAID TIRE BUILDING DRUM BEING RADIALLY COLLAPSIBLE TO PERMIT A COMPLETED TIRE TO BE REMOVED FROM SAID ONE SIDE OF SAID TIRE BUILDING DRUM, AND MEANS FOR COLLAPSING SAID ONE BEAD RING.