Tire building apparatus

Claim 1

IN A TIRE BUILDING MACHINE HAVING A HOLLOW COLLAPSIBLE BUILDING DRUM SUPPORTED AND DRIVEN AT THE END OF A CENTILEVER SHAFT AND HAVING STICHING MEANS ADAPTED TO TURN THE TIRE PILES EXTENDING AXIALLY BEYOND THE ENDS OF SAID DRUM RADIALLY AROUND THE TIRE BEADS POSITIONED AT THE SHOULDERS OF SAID DRUM, APPARATUS LOCATED AT EACH END OF SAID DRUM INCLUDING, RESPECTIVELY, MEANS TO SET THE BEADS OF SAID TIRE AGAINST THE SHOULDERS AT EACH END OF THE DRUM AFTER THE TIRE PILES EXTENDING BEYOND THE ENDS OF THE DRUM HAVE BEEN TURNED RADIALLY INWARDLY BY SAID STICHING MEANS, A PAIR OF CYLINDRICAL SURFACES MOUNTED CO-AXIALLY WITH AND NORMALLY POSITIONED WITHIN SAID DRUM, MEANS TO MOVE SAID CYLINDRICAL SURFACES AXIALLY FROM WITHIN THE DRUM TO POSITIONS IMMEDIATELY ADJACENT THE BEADS OF SAID TIRE RESPECTIVELY, WHEREBY TO PULL SAID INWARDLY TURNED PILES OUTWARDLY INTO AXIALLY EXTENDING CYLINDRICAL FORM, SAID ONE CYLINDRICAL SURFACE OPPOSITE SAID CANTILEVER SHAFT BEING MOUNTED FOR AXIAL MOVEMENT ON THE SUPPORT POSITIONED ADJACENT SAID DRUM, SAID SUPPORT BEING ROTATABLE ABOUT A VERTICAL AXIS WHEREBY SAID CYLINDRICAL SURFACE MAY BE MOVED AWAY FROM SAID DRUM TO PERMIT REMOVAL OF SAID TIRE THEREFROM.