Patent ID: 6425512
Filing Date: 2002-07-30
Classification: B65H,D21G

Abstract:
A process of transporting at least a portion of a web from a first structure to a second structure via an apparatus that includes at least two pulleys located at spaced locations from each other, an air-pervious endless belt positioned to run from the first structure to the second structure, an underpressure source arranged to produce an underpressure adjacent to the run of the endless belt, a nose shoe disposed beyond the second pulley and spaced from the second pulley, thereby defining an opening, the nose shoe having an inlet and air jet outlet positioned adjacent the second pulley, a guiding tray arranged beyond the nose shoe having an upstream section positioned adjacent said nose shoe, and the upstream section including an air slot, which extends cross-wise to a web travel direction, said process comprising:transferring the at least a portion of the web from the first structure onto the endless belt; holding the at least a portion of the web onto the endless belt through the underpressure; directing air from the air jet outlet through the opening in a direction against a rotational direction of the second pulley; transferring the at least a portion of the web from the endless belt to the nose shoe; and directing an air curtain from the upstream section of guiding tray along a surface of the guiding tray, whereby the at least a portion of the web is guided over the guiding tray.