Continuous plastic laminator

Claim 1

A CONTINUOUS PLASTIC LAMINATOR ADAPTED TO LAMINATE ARTICLES SUCH AS CARDS AND THE LIKE BETWEEN SHEETS OF DOUBLE SIDED PLASTIC INCLUDING ADJACENT SIDES WHICH MAY BE RENDERED SLIGHTLY FLUENT AT A TEMPERATURE LOWER THAN A TEMPERATURE AT WHICH THE REMOTE SIDES ARE RENDERED FLUENT, SAID LAMINATOR INCLUDING SUPPORT MEANS ADAPTED TO JOURNAL A PAIR OF ROLLS ON WHICH SAID SHEETS ARE WOUND, A PAIR OF STATIONARY AND ELONGATED GENERALLY PARALLEL GUIDES SUPPORTED FROM SAID SUPPORT MEANS AND DEFINING A PAIR OF TRANSVERSELY ARCUATE GUIDE SURFACES FACING IN THE SAME GENERAL DIRECTION AND SPACED SLIGHTLY APART IN A PLANE DISPOSED NORMAL TO SAID DIRECTION, SAID SURFACES BEING DEFINED BY A NON-STICK MATERIAL AND BEING ADAPTED TO HAVE SAID SHEETS OF PLASTIC PASSED THEREABOUT FROM SAID ROLLS FOR MOVEMENT OF SAID SHEETS OVER SAID GUIDE SURFACES WITH SAID REMOTE SIDES OF SAID SHEETS IN CONTACT THEREWITH TOWARD THE ADJACENT EDGE OF SAID SURFACES, HEATING MEANS DISPOSED BEHIND SAID GUIDE SURFACES AND IN GOOD HEAT TRANSFER RELATION THEREWITH FOR HEATING THE LATTER AND THE REMOTE SIDES OF SAID SHEETS ENGAGED THEREWITH AND THEREFORE ALSO HEATING SAID ADJACENT SIDES TO A TEMPERATURE LESS THAN THE TEMPERATURE TO WHICH THE REMOTE SIDES OF SAID SHEETS ARE HEATED, A PAIR OF DRIVEN RESILIENT PRESSURE ROLLERS GENERALLY PARALLELING SAID GUIDES AND JOURNALED FROM SAID SUPPORT MEANS IN POSITION CLOSELY ADJACENT SAID ADJACENT EDGES AND SPACED SLIGHTLY FROM SAID GUIDES IN THE OTHER DIRECTION FOR COMPRESSIVELY ENGAGING AND PULLING SAID SHEETS OVER SAID GUIDE SURFACES AND THEREAFTER BETWEEN SAID ADJACENT EDGES, SAID PRESSURE ROLLERS BEING YIELDINGLY URGED INTO PERIPHERAL CONTACT WITH EACH OTHER, A PAIR OF JUXTAPOSED AND GENERALLY PARALLEL DRIVEN RESILIENT STRETCH ROLLERS JOURNALLED FROM SAID SUPPORT MEANS AND POSITIONED RELATIVE TO SAID PRESSURE ROLLERS TO RECEIVE SAID SHEETS AFTER PASSING BETWEEN SAID PRESSURE ROLLERS, SAID STRETCH ROLLERS BEING ADAPTED TO FRICTIONALLY GRIP SAID REMOTE SIDES OF SAID SHEETS AND BEING DRIVEN AT A SLIGHTLY GREATER PERIPHERAL SPEED THAN SAID PRESSURE ROLLERS, AND COOLING MEANS DISPOSED BETWEEN SAID PRESSURE AND STRETCH ROLLERS ALONG THE INTENDED PATH OF SAID SHEETS EXTENDING BETWEEN SAID PRESSURE AND STRETCH ROLLERS AND OPERATIVE TO COOL SAID SHEETS IN THE PORTIONS THEREOF EXTENDING BETWEEN SAID PRESSURE AND STRETCH ROLLERS ALONG SAID PATH, SAID LAMINATOR BEING FREE OF MEANS OPERATIVE TO HASTEN COOLING OF SAID SHEETS PRIOR TO THEIR PASSING FROM SAID PRESSURE ROLLERS AND FREE OF MEANS OPERATIVE TO HEAT SAID SHEETS AFTER PASSING BETWEEN SAID PRESSURE ROLLERS.