Wrapping machines

Claim 1

A WRAPPING MACHINE FOR ENCLOSING A PACKAGE IN WRAPPING MATERIAL, INCLUDING IN COMBINATION, GUIDE MEANS DEFINING A FEED PATH ALONG WHICH THE PACKAGE CAN MOVE TO A WRAPPING POSITION, A RETRACTABLE HEAD CONTROLLING THE FEEDING OF THE WRAPPING MATERIAL AND HAVING AN ADVANCED POSITION AND A WITHDRAWN POSITION, DRIVING MEANS FOR MOVING THE RETRACTABLE HEAD FROM EITHER OF SUCH POSITIONS TO THE OTHER, MEANS WHEREBY THE WRAPPING MATERIAL IS CAUSED TO EXTEND FROM ONE SIDE OF THE FEED PATH TO THE OTHER WHEN THE RETRACTABLE HEAD IS IN THE WITHDRAWN POSITION, WHEREBY THE MOVEMENT OF THE PACKAGE INTO THE WRAPPING POSITION CAUSES THE WRAPPING MATERIAL TO BE WRAPPED AROUND A PORTION OF ITS PERIPHERY, MEANS WHEREBY WHEN THE PACKAGE IS IN THE WRAPPING POSITION THE DRIVING MEANS IS CAUSED TO MOVE THE RETRACTABLE HEAD FROM ITS WITHDRAWN POSITION INTO ITS ADVANCED POSITION THEREBY WRAPPING THE WRAPPING MATERIAL AROUND A FURTHER PORTION OF THE PERIPHERY OF THE PACKAGE, A SUPPLY REEL FROM WHICH A WEB OF WRAPPING MATERIAL IS DRAWN BY MOVEMENT OF THE RETRACTABLE HEAD FROM ITS WITHDRAWN POSTION INTO ITS ADVANCED POSITION, A CLAMPING DEVICE FOR GRIPPING THE FREE END OF THE WEB LOCATED ON THE SIDE OF THE FEED PATH REMOTE FROM THE WITHDRAWN POSITION OF THE RETRACTABLE HEAD, MEANS FOR RELEASING THE CLAMPING DEVICE WHEN THE PACKAGE IS IN THE WRAPPING POSITION PRIOR TO THE COMPLETION OF THE MOVEMENT OF THE RETRACTABLE HEAD INTO THE ADVANCED POSITION, MEANS FOR WRAPPING THE RELEASED FREE END PORTION OF THE WEB OF WRAPPING MATERIAL AROUND A PORTION OF THE PERIPHERY OF THE PACKAGE, A CUTTING DEVICE FOR SEVERING THE WEB OF WRAPPING MATERIAL AFTER COMPLETION OF THE WRAPPING OF THE PERIPHERY OF THE PACKAGE BY THE MOVEMENT OF THE RETRACTABLE HEAD INTO ITS ADVANCED POSITION, AND MEANS WHEREBY THE CLAMPING DEVICE IS CAUSED TO GRIP THE NEW FREE END OF THE WEB OF WRAPPING MATERIAL.