Conveying and turning mechanism

Claim 1

IN A CONVEYING AND REPOSITIONING MECHANISM FOR SQUARE-SHOULDERED BOXES COMPRISING, AN ENDLESS PLATFORM TYPE CONVEYOR FOR CARRYING THE BOXES, AND MEANS FOR ROTATING SAID BOXES RELATIVE TO SAID CONVEYOR THROUGH A 90 DEGREES ATTITUDE TURN, SAID MEANS FOR ROTATING SAID BOXES COMPRISING A STATINARY CAM DEVICE LOCATED ALONGSIDE SAID CONVEYOR, SAID CAM DEVICE INCLUDING AN INCLINED RAMP PORTION HAVING ITS UPPER SURFACE AT ONE END DISPOSED AT AN ELEVATION BELOW THAT OF THE TOP SURFACE OF SAID CONVEYOR AND INCLINING UPWARDLY THEREFROM TOWARD THE OPPOSITE END OF THE RAMP PORTION TO AN ELEVATION SUBSTANTIALLY ABOVE SAID CONVEYOR AND AN UPSTANDING ABUTMENT PORTION AT SAID OPPOSITE END OF THE RAMP PORTION, SAID RAMP PORTION HAVING A LENGTH WHICH IS A SUBSTANTIAL PORTION OF A BOX DIMENSION PROVIDING AT LEAST A LINE CONTACT THEREWITH, MEANS GUIDING THE BOXES TO TRAVEL WITH SAID CONVEYOR WHILE EXTENDING AT THEIR EDGES TO OVERHANG SAID CONVEYOR AND TO MOVE IN DIRECTIONAL ALIGNMENT WITH SAID RAMP AND ABUTMENT PORTIONS, SAID RAMP PORTION MAINTAINING THE OUTER EDGE OF EACH SAID BOXES IN ELEVATED AND INCLINED RELATION AS THEY RIDE THEREUPON IN FRICTIONAL-DRAGGING RELATION WHEREBY ONLY THE INNER TRAILING CORNER PORTION OF THE BOX REMAINS IN FRICTIONALLY DRIVEN AND VERTICALLY SUPPORTED RELATION WITH SAID CONVEYOR AND SAID BOX IS THEREBY CAUSED TO START TO ROTATE AS SEEN IN PLAN VIEW AND WHEREBY WHEN THE TRAILING OUTSIDE CORNER PORTION OF SAID BOX MOVES INTO BEARING RELATION AGAINST SAID ABUTMENT PORTION THE LATTER FORCES SAID BOX TO COMPLETE A 90 DEGREE TURNING OPERATION AND TO THEREUPON FALL FLATLY UPON SAID CONVEYOR.