Apparatus for coating a moving web

Claim 1

APPARATUS FOR APPLYING A COATING OF WAX-LIKE MATERIAL TO THE SURFACE OF A MOVING WEB COMPRISING MEANS PROVIDING A BATH OF SAID MATERIAL, MEANS FOR HEATING SAID MATERIAL TO A FLUENT CONDITION, A ROTATABLE DUCT CYLINDER HAVING A PORTION OF ITS SURFACE IMMERSED IN SAID HEATED FLUENT MATERIAL, THE SURFACE OF SAID CYLINDER HAVING A MULTIPLICITY OF MINUTE MATERIAL PICK-UP RECESSES THEREIN, A DOCTOR BLADE ENGAGING THE SURFACE OF SAID DUCT CYLINDER FOR REMOVING FROM SAID CYLINDER SURFACE SUBSTANTIALLY ALL OF SAID MATERIAL EXCEPT THAT FILLING THE RECESSES THEREIN, MEANS FOR HEATING SAID DUCT CYLINDER, A RESILIENT SURFACED ROTATING MATERIAL TRANSFER CYLINDER IN DIRECT ROLLING CONTACT WITH THE SURFACE OF SAID DUCT CYLINDER ADAPTED TO CONTINUOUSLY REMOVE SAID MATERIAL FROM THE SURFACE RECESSES OF SAID DUCT CYLINDER IN SMALL DEPOSITS WHICH ARE INVERTED DURING TRANSFER TO THE SURFACE OF SAID TRANSFER CYLINDER, MEANS FOR PASSING THE WEB TO BE COATED IN DIRECT CONTACT OVER THE PORTION OF SAID TRANSFER CYLINDER SURFACE BEARING SAID COATING MATERIAL SO THAT SAID SMALL DEPOSITS ARE AGAIN INVERTED DURING TRANSFER FROM THE TRANSFER CYLINDER TO THE WEB SURFACE, A ROTATABLE IMPRESSION CYLINDER LOCATED TO DIRECTLY ENGAGE THE WEB ON THE OPPOSITE SIDE FROM THAT RECEIVING THE COATING FROM THE TRANSFER CYLINDER AND URGE