Device for mounting lids on containers

Claim 1

A DEVICE FOR MOUNTING AUXILIARY PLASTIC LIDS ON SEALED CANS, INCLUDING A LOWER CONVEYOR BELT AND A PAIR OF ENDLESS SIDE-ENGAGING BELTS FOR MOVING THE SEALED CANS THROUGH THE DEVICE, PRESSURE GUIDE PLATE FOR SAID SIDE BELTS HOLDING SAID SIDE BELTS IN ENGAGEMENT WITH SAID SEALED CANS WHILE TRAVELING THROUGH THE DEVICE, HOLDING ELEMENTS FOR A VERTICAL STACK OF AUXILIARY PLASTIC LID ABOVE THE PATH OF SAID SEALED CANS, SAID HOLDING ELEMENTS INCLUDING A SUPPORTING BOTTOM SPRING PLATE AND A GUIDEWAY FOR SAID STACK, SAID SUPPORTING PLATE POSITIONED A SLIGHT DISTANCE ABOVE THE TOP LINE OF SAID SEALED CANS WHILE PASSING UNDER SAID STACK AND EXTENDING UNDERNEATH THE UNDERSIDE OF THE BOTTOM LID IN SAID STACK IN THE DIRECTION OF TRAVEL OF SAID SEALED CANS FOR NOT MORE THAN APPROXIMATELY HALFWAY ACROSS THE UNDERSIDE OF SAID BOTTOM LID AND LEAVING THE REMAINING UNSUPPORTED PORTION OF SAID BOTTOM LID CAPABLE OF BEING PUSHED SLIGHTLY DOWNWARDLY, INTERMITTENTLY OPERATING AIR JET DISCHARGING MEANS LOCATED SLIGHTLY BEYOND THE TOP EDGE OF THE RIM OF SAID BOTTOM LID IN THE DIRECTION OF TRAVEL OF SAID SEALED CANS FOR DIRECTING AN AIR JET INWARDLY AND DOWNWARDLY ON SAID TOP EDGE, WHEREBY TO CAUSE THE UNSUPPORTED PORTION OF SAID BOTTOM LID TO BE PUSHED SLIGHTLY DOWNWARDLY, AN AUTOMATIC CONTROL ASSEMBLY FOR SAID AIR JET DISCHARGING MEANS, A SWITCH ELEMENT IN SAID CONTROL ASSEMBLY ACTUATED BY ENGAGEMENT WITH A CAN MOVING INTO POSITION BENEATH SAID BOTTOM PLATE AND STACK, AND A SPRING MOUNTED PRESSURE ROLLER POSITIONED BEYOND SAID AIR JET DISCHARGING MEANS IN THE LINE OF TRAVEL OF SAID CANS FOR BEARING DOWNW ON THE LID CARRIER ALONG BY A CAN AND COMPLETING THE PRESSING OF THE LID FIRMLY DOWN IN PLACE ON THE CAN.