Apparatus for applying adhesive to carton blanks

Claim 1

APPARATUS FOR APPLYING LIQUFIED ADHESIVE TO BOXBOARD BLANKS COMPRISING A PLATE CYLINDER HAVING AN ADHESIVE APPLICATOR PAD SECURED TO THE PERIPHERY THEREOF AND PROTRUDING THEREFROM ALONG ONLY A PORTION OF SUCH PERPHERY, MEANS FOR APPLYING SUCH ADHESIVE TO SAID ADHESIVE APPLICATOR PAD FOR SUBSEQUENT TRANSFER TO SUCH BLANKS, A PRESSURE ROLL PARALLEL TO AND SPACED FROM SIAD PLATE CYLINDER FOR RECEIVING SUCH BLANKS THEREBETWEEN, THE SPACING BETWEEN SAID PLATE CYLINDER AND SAID PRESSURE ROLL PROVIDING TANGENTIAL ENGAGEMENT OF SUCH BLANKS BY SAID PRESSURE ROLL AND BU SAID ADHESIVE APPLICATOR PAD, MEANS FOR FEEDING SUCH BLANKS BETWEEN SAID PLATE SYLINDER AND PRESSURE ROLL AT A PREDETERMINED SPEED, MEANS PROVIDING ROTATION OF SAID PRESSURE ROLL AT A PERIPHERAL SPEED SUBSTANTIALLY EQUAL TO AND IN THE SAME DIRECTION AS SAID SPEED OF SUCH BLANKS, MEANS ROTATING SAID PLATE CYLINDER PRODUCING A SIGNIFICANT SPEED DIFFERENTIAL BETWEEN THE PERIPHERAL SPEED OF SAID ADHESIVE APPLICATOR PAD AND SAID SPEED OF SUCH BLANKS AND RESILIENT GUIDE FINGER MEANS URGING SUCH BLANKS INTO SAID TANGENTIAL ENGAGEMENT WITH SAID PRESSURE ROLL AND AWAY FROM SAID TANGENTIAL ENGAGEMENT WITH SAID ADHESIVE APPLICATOR PAD.