Apparatus for setting-up cartons

Claim 1

CARTON SETTING-UP APPARATUS FOR A BLANK HAVING A THERMOPLASTIC ADHESIVE COMPOSITION PRE-APPLIED THERETO, COMPRISING THE COMBINATION WITH A MAGAZINE TO CONTAIN A STACK OF BLANKS, A DIE, A PLUNGER RECIPROCABLE INTO AND OUT OF THE DIE, PLUNGER OPERATING MEANS OPERABLE TO EFFECT RECIPROCATION THEREOF AND TO CAUSE THE PLUNGER TO REMAIN STATIONARY IN THE DIE FOR A PREDETERMINED INTERVAL, A TRANSFER DEVICE OPERABLE TO REMOVE A BLANK FROM THE MAGAZINE AND TO POSITION IT RELATIVE TO THE DIE FOR MOVEMENT INTO THE DIE BY THE PLUNGER, AND HEATER MEANS MOVABLE WITH THE TRANSFER DEVICE TO EFFECT HEATING OF THE BLANK IN THE REGIONS OF THE BLANK TO WHICH THE ADHESIVE COMPOSITION IS APPLIED, OF TRANSFER DEVICE OPERATING MEANS OPERABLE IN TIMED RELATION WITH THE PLUNGER OPERATING MEANS AND ARRANGED DURING THE INTERVAL IN WHICH THE PLUNGER IS STATIONARY IN THE DIE TO RETAIN THE TRANSFER DEVICE STATIONARY RELATIVE TO THE MAGAZINE IN THE POSITION AT WHICH THE TRANSFER DEVICE RECEIVES A BLANK FROM THE MAGAZINE WHEREBY A PRE-HEATING OF THE ADHESIVE ON THE BLANK IS EFFECTED BY SAID HEATER MEANS PRIOR TO REMOVAL OF THE BLANK FROM THE MAGAZINE BY THE TRANSFER DEVICE, SAID TRANSFER DEVICE OPERATING MEANS COMPRISING A BELL-CRANK PIVOTED ABOUT A FIXED AXIS AND HAVING ONE ARM THEREOF COUPLED TO THE PLUNGER BY A CONNECTING LINK, A TRANSFER DEVICE CARRYING ARM PIVOTED BETWEEN THE ENDS THEREOF TO THE OTHER ARM OF THE BELL-CRANK AND CONNECTED AT ONE END TO THE TRANSFER DEVICE, AND A CONNECTING ROD PIVOTED ABOUT A SECOND FIXED AXIS AND CONNECTED TO THAT END OF SAID CARRYING ARM OPPOSITE THE END THEREOF TO WHICH THE TRANSFER DEVICE IS CONNECTED.