Patent ID: 6942760

Claim:
An arrangement in the wet end of a paper machine for transferring a web from a former to a press section, said former comprising a twin wire zone defined mutually by an upper wire loop and a lower wire loop, whereafter the web is arranged to follow the upper wire to a transfer point in which the web is transferred from the underside of the upper wire onto the top side of a fabric included in the press section, wherein at the end of the twin wire zone there is provided a suction box inside the upper wire loop, and facing the suction box an open roll inside the lower wire loop, the suction box having a lid which is curved at least in a run situation so that the tension of the upper wire reduces the normal force between the wire and the lid caused by the underpressure of the suction box, and within which suction box underpressure can be arranged which keeps the web at the suction box mainly off from the roll and from the lower wire while being adhered onto the underside of the upper wire and conforming to the curved shape of the lid of the suction box, the upper wire having a run extending downstream from the suction box with the web supported on the underside thereof, and that members comprising a blowing box, a suction box, or a suction part of the open roll are arranged in connection with the suction box and/or the roll for making the web follow the lower wire in a break situation for conducting it to a broke handling system.