Package wrapping machine

Claim 1

IN AN APPARATUS FOR WRAPPING AN ARTICLE, MEANS FOR SUPPORTING A WRAPPING SHEET IN A VERTICAL PLANE, FIRST AND SECOND HORIZONTAL CONVEYORS FOR CONVEYING AN ARTICLE AT SUCH A LEVEL THAT THE ARTICLE PLACED ON SAID FIRST CONVEYOR MOVES THROUGH SAID VERTICAL PLANE INTERMEDIATE THE LENGTH OF THE SHEET WHEREBY THE SHEET IS LOOPED AROUND THE LEADING END OF THE ARTICLE AS THE LATTER MOVES FROM SAID FIRST TO SAID SECOND CONVEYOR, MEANS ABOVE SAID SECOND CONVEYOR FOR HOLDING AGAINST THE TOP OF THE ARTICLE THE PORTION OF THE SHEET BETWEEN SAID LOOP AND THE EXTREMITY OF THE SAID PORTION OF THE SHEET, AT LEAST ONE EXTREMITY OF THE SAID SHEET EXTENDING BEYOND THE FOLLOWING END OF THE ARTICLE, A THIRD CONVEYOR ALIGNED WITH SAID SECOND CONVEYOR AND HAVING AN INLET END SPACED FROM THE OUTLET END OF SAID SECOND CONVEYOR, SAID SECOND CONVEYOR MOVING THE ARTICLE TO SAID THIRD CONVEYOR TO BE ADVANCED HORIZONTALLY THEREBY, AND MEANS BETWEEN SAID SECOND AND THIRD CONVEYORS AS THE FOLLOWING END OF THE ARTICLE MOVES THEREBETWEEN FOR FOLDING THE EXTREMITIES OF THE SHEET INTO OVERLAPPING RELATIONSHIP AND FOR SEALING THEM TO EACH OTHER.