Packaging machine

Claim 1

A PACKAGING MACHINE INCLUDING A PLURALITY OF STATIONS, MEANS FOR INTRODUCING A FIRST CONTINUOUS SHEET OF PLASTIC MATERIAL AND MEANS FOR PERIODICALLY INDEXING SAID SHEET THROUGH SAID STATIONS, SAID STATIONS INCLUDING A FORMING STATION CAPABLE OF PRODUCING RECEPTACLES IN SAID SHEET, FILLING STATION ADAPTED TO INTRODUCE THE ARTICLES TO BE PACKAGED INTO SAID MACHINE, MEANS FOR BRINGING A SECOND CONTINUOUS PLASTIC SHEET INTO REGISTRY WITH SAID RIMS, A HEAT SEALING STATION INCLUDING MEANS FOR PRESSING SAID RIMS AND SAID SECOND SHET TOGETHER AND MEANS FOR APPLYING HEAT DURING SAID PRESSURE WHEREBY SAID RECEPTACLES ARE COMPLETELY CLOSED, A CUTTING STATION INCLUDING MEANS FOR CUTTING SAID SHEETS AROUND THE OUTER EDGES OF SAID RIMS, AND MEANS FOR DISCHARGING SAID CLOSED RECEPTACLES FROM SAID MACHINE, SAID MEANS FOR PERIODICALLY INDEXING THE SHEETS THROUGH THE MACHINE INCLUDING MEANS FOR CLAMPING THE SHEETS ALONG THEIR SIDE EDGES, A BRACKET FOR SAID CLAMPING MEANS RECIPROCALLY MOUNTED FOR MOVEMENT BETWEEN A FORWARD POSITION NEAR THE DISCHARGE END OF SAID MACHINE AND A REARWARD POSITION NEAR THE ENTRY END OF THE MACHINE, AND MEANS FOR HOLDING SAID CLAMPING MEANS IN CLAMPING POSITION DURING FORWARD MOVEMENT OF SAID BRACKET AND FOR RELEASING SAID CLAMPING MEANS DURING REARWARD MOVEMENT OF SAID BRACKET.