Web feeding mechanism for continuous web converting machines

Claim 1

IN A FEED FOR A CONTINUOUS, FLEXIBLE WEB PACKAGING MACHINE HAVING A POWER SOURCE, AND LONGITUDINAL AND TRANSVERSE HEAT SEALING MEANS, THE COMBINATION COMPRISING: AN AXIALLY ADJUSTABLE WEB SUPPORTING MANDREL, SAID MANDREL BEING RESTRAINED FROM FREE ROTATION BY BRAKING MEANS; MEANS FOR AXIALLY ADJUSTING SAID MANDREL ALONG A NON-ROTATABLE MANDREL SHAFT; A PAIR OF SPACED SIDE FRAMES LYING IN PLANES GENERALLY PERPENDICULAR TO SAID MANDREL SHAFT; A ROTATABLE ENTRY ROLLER JOURNALED AT ITS ENDS FOR BEARING SUPPORT IN SAID FRAMES; A FIRST WEB ADJUSTMENT ROLLER ROTATABLY BORNE BY AND SPACED BETWEEN SAID FRAMES AND CARRIED AT ITS RESPECTIVE ENDS BY BEARING BLOCKS MOVABLE IN SLOTS PROVIDED IN SAID FRAMES; FIRST ADJUSTMENT MEANS FOR EACH OF SAID BEARING BLOCKS ADAPTED TO INDIVIDUALLY MOVE THE BLOCKS AND RETAIN THE SAME IN SET POSITION; A SECOND WEB ADJUSTMENT ROLLER ROTATABLY BORNE BY AND SPACED BETWEEN SAID FRAMES AND CARRIED AT ITS RESPECTIVE ENDS BY BEARING BLOCKS MOVABLE IN SLOTS, PROVIDED IN SAID LAST NAMED FRAMES, TRANSVERSELY RELATIVE TO THE MOVEMENT OF SAID FIRST ADJUSTMENT ROLLER; SECOND ADJUSTMENT MEANS FOR EACH OF SAID BEARING BLOCKS ADAPTED TO INDIVIDUALLY MOVE THE BLOCKS AND RETAIN THE SAME IN SET POSITION; A FIRST PAIR OF OPPOSITELY DISPOSED, COACTING DRAW ROLLERS PRECEDING SAID LONGITUDINAL HEAT SEALING MEANS; A SECOND PAIR OF OPPOSITELY DISPOSED, COACTING DRAW ROLLERS, DISPOSED BETWEEN SAID LONGITUDINAL AND TRANSVERSE HEAT SEALING MEANS; A THIRD PAIR OF OPPOSITELY DISPOSED, COACTING DRAW ROLLERS, SUCCEEDING SAID TRANSVERSE HEAT SEALING MEANS; MEANS FOR TRANSMITTING POWER FROM SAID POWER SOURCE TO EACH OF SAID PAIRS OF DRAW ROLLERS; AND SPEED ADJUSTMENT MEANS FOR ADJUSTING THE SPEED OF AT LEAST ONE OF SAID PAIRS OF DRAW ROLLERS RELATIVE TO THE OTHER PAIRS OF DRAW ROLLERS.