Method and apparatus for embossing plastic coated strip

Claim 1

AN APPARATUS FOR EMBOSSING A THERMOPLASTIC COATING ON ONE SIDE OF METAL STRIP COMPRISING, THE COMBINATION WITH A FURNACE THROUGH WHICH SAID STRIP TRAVELS OVER A HORIZONTAL PATH WITH SAID COATING FACING UPWARDLY, OF AN EMBOSSING ROLL SET COMPRISING AN UPPER STEEL EMBOSSING ROLL, A LOWER RUBBER BACK-UP ROLL, MEANS MOUNTED SAID ROLLS FOR ROTATIONAL MOVEMENT ABOUT PARALLEL AXES WITH EMBOSSING ROLL COMPRESSED AGAINST SAID RUBBER ROLL AND COOPERATING THEREWITH TO FORM AN EMBOSSING PASSS OF ARCUATE SHAPE HAVING STRIP ENTRY AND EXIT ENDS AT CIRCUMFERENTIALLY SPACED POINTS ABOUT SAID EMBOSSING ROLL, SAID EMBOSSING PASS BEING LOCATED AT A VERTICAL LEVEL BELOW SAID HORIZONTAL PATH, A GUIDE ROLL BETWEEN SAID FURNACE AND EMBOSSING PASS AND HAVING THE UPPER PORTION OF ITS PERIPHERY AT THE SAME VERTICAL LEVEL AS SAID HORIZONTAL PATH AND IN ROLLING ENGAGEMENT WITH STRIP MOVING FROM SAID FURNACE TO SAID ROLL SET, SAID GUIDE ROLL OPERATING IN CONJUNCTION WITH SAID EMBOSSING ROLL TO GUIDE THE MOVEMENT OF SAID STRIP OUT OF SAID HORIZONTAL PATH AND IN A DOWNWARLY INCLINED DIRECTION TANGENTIAL TO SAID EMBOSSING ROLL SO THAT SAID COATING ENGAGES SAID EMBOSSING ROLL AT A POINT IN ADVANCE OF ITS MOVEMENT INTO THE SAID STRIP ENTRY END OF SAID EMBOSSING PASS, MEANS FOR ADJUSTING THE HORI-