Transfer of paper web between supporting felts, is achieved by suction unit directed to guide roller location on side opposite suction unit location

摘要

The suction unit (56) effect is directed to the guide roller (54, 70) location, on the web (W) side opposite the suction unit (56). The paper web (W) is taken from the fabric on the side of the guide roller (54, 70) in each location where the direction of movement of the fabric (46) begins to diverge away on the side of the suction device (56). Slot arrangement in the suction unit cover (80) aligns with planes running through the axial center line of the felt guide roller and through the line where the web (W) detaches from the felt guide roller (54, 70) to the following felt (46). In the suction unit cover (80), the slot starts at each plane running through the axial center line of the felt guide roller (50) and through the line, at which the web (W) departs from the felt guide roller (54, 70). Further mechanical details of the method and its variants are provided, in accordance with the foregoing principles. An independent claim IS INCLUDED FOR corresponding equipment.