Bag making machine

Claim 1

IN A BAG MACHINE, A SUPPORTING FRAMEWORK, A ROTATABLE SUPPORT FOR A SUPPLY ROLL OF A DOUBLE-PLY THERMOPLASTIC STRIP ON SAID FRAMEWORK, MEANS FOR MOVING SAID STRIP FROM SAID SUPPLY ROLL, A ROTATABLE HEAT SEALING HEAD AND A ROTATABLE IMPRESSION ROLLER SUPPORTED BY SAID FRAMEWORK IN PERIPHERAL TANGENCY TO EACH OTHER, SAID IMPRESSION ROLLER FORMING A ROTARY ANVIL FOR SAID HEAT SEALING HEAD, DRIVE MEANS OPERATIVELY CONNECTED TO SAID HEAT SEALING HEAD AND TO SAID IMPRESSION ROLLER, MEANS TO GUIDE SAID THERMOPLASTIC STRIP BETWEEN SAID HEAT SEALING HEAD AND SAID IMPRESSION ROLLER, SAID HEAT SEALING HEAD BEING GENERALLY CYLINDRICAL AND HAVING AT LEAST ONE HEAT SEALING AND CUTTING ELEMENT ON ITS PERIPHERY, HEATING MEANS FOR SAID ELEMENT IN OPERATIVE CONNECTION THEREWITH, AT LEAST ONE THERMALLY INSULATED INTERRUPTION ON SAID ELEMENT, WHEREBY SAID ELEMENT CONTACTS SAID STRIP TO FORM SPACED INTERRUPTED LINES OF SEAL AND SEVERANCE IN SAID STRIP, A BAG BEING DEFINED BETWEEN EACH PAIR OF SAID LINES OF SEAL AND SEVERANCE, A CONVEYOR ON SAID FRAMEWORK, SAID CONVEYOR BEING CONSTRUCTED AND ARRANGED TO MOVE SAID BAGS, WHILE JOINED TOGETHER BY THE INTERRUPTIONS IN SAID LINES OF SEAL AND SEVERANCE, AWAY FROM SAID HEAT SEALING HEAD.