Stack aligning chute

Claim 1

AN ARTICLE TRANSFER CHUTE COMPRISING AN INCLINED BOTTOM WALL FORMED WITH A PLURALITY OF ROWS OF PERFORATIONS NORMAL TO THE DIRECTION OF INCLINE, MEANS PROVIDING AN AIR BLAST UPWARDLY THROUGH SAID ROWS OF PERFORATIONS IN SEQUENCE FOR SUPPORTING ARTICLES IN SPACED RELATION ABOVE SAID WALL IN THEIR PASSAGE THEREOVER, THE SEQUENCE OF SAID AIR BLASTS BEING TIMED TO PROVIDE AIR BLASTS THROUGH THE PERFORATIONS OF EACH ROW WHICH AN ARTICLE IS TO PASS OVER IMMEDIATELY PRIOR TO AND DURING SUCH PASSAGE, AND A PLURALITY OF VALVES CONNECTED TO SAID MEANS FOR CONTROLLING SAID AIR BLASTS, EACH OF SAID VALVES HAVING AN ACTUATING MEMBER MOUNTED ABOVE ONE OF SAID ROWS OF PERFORATIONS IN POSITION FOR ACTUATION BY AN ARTICLE PASSING OVER SUCH ROW SO AS TO SUPPLY THE AIR BLAST TO THE ROW ONLY WHEN ACTUATED BY AN ARTICLE, AND A PAIR OF VERTICAL SIDEWALLS MOUNTED IN SPACED RELATION ON SAID BOTTOM WALL TO DEFINE AN INCLINED TROUGH, SAID SIDEWALLS BEING SPACED APART BY A DISTANCE SLIGHTLY EXCEEDING THE WIDTH OF THE ARTICLE WHEREBY SAID AIR BLAST WILL PASS UPWARDLY BETWEEN THE SIDES OF THE ARTICLE AND SAID SIDEWALLS AND HOLD THE ARTICLE OUT OF CONTACT WITH SAID SIDE WALLS DURING ITS PASSAGE THEREBETWEEN.