Tire building machine

Claim 1

IN COMBINATION IN A TIRE BUILDING MACHINE: A TIRE BUILDING DRUM OF VARIABLE DIAMETER FOR RECEIVING FABRIC LAYERS FOR FORMING A TIRE CARCASS, AND HAVING ITS OPPOSITE END FACES PROVIDED WITH AXIALLY INWARDLY EXTENDING RECESS MEANS FOR RECIVING BEAD CORES, A PAIR OF FIRST ANNULAR MEANS FOR SETTING BEAD CORES IN SAID RECESS MEANS AND OF VARIABLE DIAMETER RESPECTIVELY ARRANGED AT OPPOSITE ENDS OF SAID DRUM AND SUBSTANTIALLY COAXIAL THEREWITH, SAID FIRST ANNULAR MEANS BEING MOVABLE SELECTIVELY TOWARD SAID DRUM OR AWAY THEREFROM FOR CONVEYING BEAD CORES INTO SAID RECESS MEANS, THOSE ENDS OF SAID FIRST ANNULAR MEANS WHICH FACE THE END OF FACES OF SAID DRUM BEING PROVIDED WITH REDUCED DIAMETER PORJECTIONS FROMING BEAD CORE RECEIVING PORTIONS OF STEP-SHAPED CROSS SECTION FOR RECEIVING THE BEAD PORTIONS OF FABRIC EXTENDING BEYOND THE ENDS OF THE DRUM AND UNDERLYING THE BEAD CORES AND FOR RECEIVING THE BEAD CORES ON SAID PORTIONS OF FABRIC, SAID FIRST ANNULAR MEANS BEING MOVABLE AXIALLY TOWARD THE DRUM TO DISPOSE SAID PROJECTIONS IN SAID RESPECTIVE ADJACENT RECESS MEANS OF SAID DURM FOR MOVING SAID PORTIONS OF FABRIC AND THE BEAD CORES THEREON INTO SAID RECESS MEANS, AND A PLURALITY OF SECOND ANNULAR MEANS RESPECTIVELY ARRANGED AT OPPOSITE ENDS OF SAID DRUM FOR FOLDING THE MARGINAL PORTIONS OF THE FABRIC LAYERS ON THE DRUM BACK OVER THE DRUM, SAID SECOND ANNULAR MEANS HAVING RADIALLY OUTWARDLY YIELD ABLE MEANS AT THE ENDS TOWARD THE DRUM RESTING ON THE OUTER SURFACE OF THE ADJACENT SAID FIRST ANNULAR MEANS, SAID SECOND ANNULAR MEANS BEING MOVABLE AXIALLY OVER THE RESPECTIVE ADJACENT FIRST ANNULAR MEANS AND OVER RESPECTIVE ADJACENT PORTIONS OF SAID DRUM WHEREBY THE RESPECTIVE FABRIC PORTIONS EXTENDING OUTWARDLY FROM SAID FIRST ANNULAR MEANS ARE LIFTED BY SAID SECOND ANNULAR MEANS AND FOLDED OVER THE RESPECTIVE ADJACENT BEAD CORES.