Machine for simultaneously closing top

Claim 1

IN AN AUTOMATIC CYCLIC STAPLING MACHINE FOR SIMULTANEOUSLY STAPLING LOWER AND UPPER SIDE FLAPS OF A CARTON FED INTO SAID MACHINE, AFTER SAID CARTON HAS BEEN FILLED WITH A PRODUCT TO BE PACKAGED, TO LOWER AND UPPER END FLAPS RESPECTIVELY OF SAID CARTON, WHILE SAID CARTON IS HALTED IN A GIVEN POSITION IN SAID MACHINE, THE COMBINATION OF: MEANS FOR SUPPORTING A CARTON IN SAID POSITION ON ITS BOTTOM END AND SIDE FLAPS WITH SAID FLAPS FOLDED TOGETHER IN FLAT OVERLAPPING RELATION, AND WITH THE TOP END AND SIDE FLAPS OF SAID CARTON FOLDED TOGETHER IN FLAT OVERLAPPING RELATION OVER SAID PRODUCT; A LOWER STAPLING MECHANISM DISPOSED UNDER SAID CARTON WHEN THE LATTER IS SO SUPPORTED FOR DRIVING STAPLES UPWARDLY INTO THE BOTTOM OF SAID CARTON; AN UPPER STAPLING MECHANISM DISPOSED ABOVE SAID CARTON WHEN THE LATTER IS SO SUPPORTED, FOR DRIVING STAPLES DOWNWARDLY INTO THE TOP OF SAID CARTON; AND POWER MEANS FOR SUCCESSIVELY LOCATING SAID CARTON IN THE AFORESAID POSITION IN SAID MACHINE AND THEN SIMULTANEOUSLY ACTUATING SAID STAPLING MECHANISMS TO STAPLE TOGETHER THE OVERLAPPING BOTTOM END AND SIDE FLAPS OF SAID CARTON AND TO STAPLE TOGETHER THE OVERLAPPING TOP END AND SIDE FLAPS OF SAID CARTON.