Rapid roll changer

Claim 1

A PROCESS FOR WINDING FILM MATERIAL, WHICH COMPRISES POSITIONING A FIRST MANDREL WITH CORE THEREON AT A FIRST LOCATION, APPLYING A FIRST DRIVING FORCE TO SAID MANDREL WITHOUT DIRECTLY CONTACTING SAID CORE TO WITHDRAW FILM MATERIAL FROM A SOURCE AND WIND SAID MATERIAL ON SAID CORE, SWINGING ALONG A SUBSTANTIALLY ARCUATE PATH A SECOND DRIVING FORCE FROM A SECOND LOCATION TO SAID FIRST LOCATION TO DRIVE SAID FIRST MANDREL WITHOUT DIRECTLY CONTACTING SAID CORE AND SAID FILM MATERIAL WOUND THEREON, SIMULTANEOUSLY INTERRUPTING THE DRIVING ACTION OF SAID FIRST DRIVING FORCE, SWINGING ALONG SAID SAME ARCUATE PATH SAID SECOND DRIVING FORCE AND SAID FIRST MANDREL WITH CORE AND ANY DESIRED AMOUNT OF WOUND FILM MATERIAL THEREON WHILE SAID FIRST MANDREL IS BEING CONTINUOUSLY DRIVEN BY SAID SECOND DRIVING FORCE, SAID LAST-MENTIONED SWINGING ACTION MOVING SAID SECOND DRIVING FORCE AND SAID FIRST MANDREL WITH CORE AND WOUND FILM MATERIAL THEREON FROM SAID FIRST LOCATION TO SAID SECOND LOCATION, POSITIONING A SECOND MANDREL WITH CORE THEREON AT SAID FIRST LOCATION AND BY SAID FIRST DRIVING FORCE DRIVING SAID SECOND MANDREL WITHOUT DIRECTLY CONTACTING THE CORE THEREON, AND SEVERING SAID FILM MATERIAL ALONG SAID SECOND CORE AND SIMULTANEOUSLY ATTACHING A SEVERED END THERETO SO AS TO WITHDRAW FILM MATERIAL FROM SAID SOURCE AND WIND THE SAME ON THE CORE ON SAID SECOND DRIVEN MANDREL.