Box forming machines

Claim 1

IN A MACHINE FOR FORMING BOXES FROM BLANKS OF SHEET MATERIAL HAVING A BOTTOM PORTION, SIDE WINGS AND END WINGS FOLDABLY CONNECTED THERETO, AND CORNER LAPS AND EXTENSIONS FOLDABLY CONNECTED TO THE SIDE WINGS AND END WINGS, RESPECTIVELY; A FIRST STATION, A PAIR OF RAILS AT THE FIRST STATION AND EXTENDING THEREFROM ALONG A DESIRED PLANE OF MOVEMENT OF THE BLANK, SAID RAILS BEING SPACED APART A DISTANCE EQUAL TO THE LENGTH OF SAID SIDE WINGS, MEANS FOR PLACING A SINGLE BLANK ON SAID RAILS AT THE FIRST STATION WITH THE SIDE WINGS EXTENDING ACROSS SAID RAILS, BENDING MEANS AT THE FIRST STATION FOR BENDING THE CORNER LAPS OVER SAID RAILS WITH THE END WINGS AND THEIR EXTENSIONS REMAINING OUTSPREAD BEYOND THE RAILS AND IN SAID PLANE, FEED MEANS EFFECTIVE AFTER SAID LAPS ARE BENT FOR FEEDING THE BLANKS ALONG SAID RAILS, GUIDE MEANS ADJACENT THE OUTER SURFACES OF SAID RAILS FORMING WITH SAID RAILS A SUBSTANTIALLY CLOSED PATH FOR MAINTAINING THE CORNER LAPS IN BENT CONDITION WHEREBY THE BLANK IS GUIDED BY ITS CORNER FLAPS AS IT IS FED ALONG THE RAILS IN SAID PLANE, A SECOND STATION THROUGH WHICH EXTEND SAID RAILS AND HAVING ADHESIVE APPLYING MEANS OUTSIDE SAID RAILS FOR COATING ONE SIDE OF THE OUTSPREAD END WINGS AND THE THEIR EXTENSIONS AS THE BLANK IS FED ALONG SAID RAILS, A THIRD STATION THROUGH WHICH SAID RAILS EXTEND AND HAVING SUPPORT PLATES SPACED OUTWARDLY FROM SAID RAILS AND ADAPTED TO SUPPORT THE END WINGS AT THE FOLD LINES CONNECTNG SAID EXTENSIONS TO THE END WINGS, AND FOLDING MEMBERS HAVING FIRST SURFACES CONVERGING FROM ONE SIDE OF THE BLANK INTO THE PLANE OF MOVEMENT OF SAID EXTENSIONS AS THE BLANK IS FED ALONG THE RAILS FOR PROGRESSIVELY BENDING SAID EXTENSIONS OVER SAID PLATES, SAID MEMBERS ALSO BEING PROVIDED WITH ADDITIONAL SURFACES CONVERGING FROM THE PROVIDED WITH ADDITIONAL SURFACES PLANE OF MOVEMENT OF SAID EXTENSIONS AFTER BENDING BY THE FIRST CONVERGING SURFACES FOR FURTHER BENDING SAID EXTENSIONS IN THE SAME DIRECTION TO AN EXTEND SUFFICIENTLY TO CAUSE A PERMANENT BEND TO BE IMPARTED TO SAID EXTENSION WITHOUT CAUSING THE ADHESIVELY COATED SURFACES OF THE END WINGS AND THEIR EXTENSIONS TO BECOME ENGAGED.