Gluing mechanism for a carton closing machine

Claim 1

GLUING MECHANISM FOR A CASE CLOSING MACHINE WHICH HANDLES A SUCCESSION OF MOVING CASES EACH HAVING AT LEAST ONE FLAP A DISPOSE FOR THE APPLICATION OF GLUE THERETO, SAID MECHANISM COMPRISING A GLUE APPLICATOR NOZZLE CONNECTIBLE WITH A SOURCE OF GLUE UNDER PRESSURE AND WHICH NOZZLE INCLUDES A VALVE WHICH PERMITS GLUE TO FLOW THEREFROM ONLY WHEN THE NOZZLE IS ENGAGED BY A FLAP OF A MOVING CASE, MOVABLE MEANS FOR SUPPORTING SAID NOZZLE IN A POSITION IN THE PATH OF MOVEMENT OF THE FLAPS OF THE MOVING CASES TO BE ENGAGED AND OPERATED THEREBY AND IN A POSTION OUT OF THE SAID PATH OF MOVEMENT, AND MEANS OPERATIVELY ASSOCIATED WITH SAID NOZZLE SUPPORT MEANS TO PLACE THE NOZZLE SELECTIVELY IN EACH OF ITS TWO SAID POSITIONS AND INCLUDING CONTROL MEANS NORMALLY HOLDING SAID NOZZLE IN THE SAID PATH OF MOVEMENT BUT BEING OPERABLE IN RESPONSE TO THE MOVEMENT OF A CASE PAST THE LOCATION OF SAID NOZZLE TO MOVE THE NOZZLE OUT OF THE SAID PATH AND TO RETURN IT TO ITS NORMAL POSITION WHEREBY TO SKIP THE APPLICATION OF GLUE OVER A PORTION OF EACH FLAP MOVING ALONG THE SAID PATH.