Strip bag producing mechanism

Claim 1

APPARATUS FOR TRANSVERSELY SEALING TOGETHER SUPERPOSED, ELONGATED WEB PORTIONS OF THERMOPLASTIC MATERIAL TO DEVELOP ADJACENT BAGS SEPARABLE ALONG A LINE OF WEAKNESS IN THE SEALED PORTION, COMPRISING: A FRAME EQUIPPED WITH AN ELONGATED, RIBBON-SUPPORTING MEMBER, MEANS ON SAID FRAME FOR POSITIONING SAID WEB PORTIONS WITH THE LENGTH OF SAID WEB PORTIONS TRANSVERSE OF THE LENGTH OF THE MEMBER, AN ELONGATED, METAL RIBBON HAVING A THICKNESS OF A FEW THOUSANDTHS OF AN INCH SUPPORTED ON SAID MEMBER AND HAVING THE RIBBON LENGTH EXTENDING PARALLEL TO THE LENGTH OF SAID MEMBER, SAID RIBBON BEING CENTRALLY, LONGITUDINALLY DEFORMED TO PROVIDE AN INTEGRAL, ELONGATED RIB OUTSTANDING FROM SAID MEMBER A FEW THOUSANDTHS OF AN INCH, THE RIB WIDTH BEING SUBSTANTIALLY LESS THAN THE RIBBON WIDTH, WITH THE BASE OF THE RIB BEING OF GREATER WIDTH THAN THE RIB TIP, MEANS ON SAID FRAME RESILIENTLY URGING SAID WEB PORTIONS AND RIBBON TOGETHER, AND MEANS ON SAID FRAMED FOR INTERMITTENTLY SENDING ELECTRIC CURRENT THROUGH SAID RIBBON, SAID CURRENT-SENSING MEANS AND RESILIENTLY URGING MEANS BEING ARRANGED TO DEVELOP LINEAR WEB SEALS ON OPPOSITE SIDES OF A LINE OF WEAKNESS PROVIDED BY SAID RIB.