Extended nip roll for use in a nip through which a fibrous web is to be passed

An extended nip roll (1) for use in a nip (N) through which a fibrous web (W) is to be passed, the extended nip roll (1) having two axial ends (3, 4) and comprising:

• a support beam (5) having an axial extension between the axial ends (3, 4) of the extended nip roll (1);
• a press body (6) having an axial extension and which press body (6) is substantially parallel with the support beam (5);
• means (7) supported by the support beam (5) for causing the press body to move or expand radially outwards towards a counter roll (2) to form a nip (N);
• a tubular flexible jacket (8) with two axial ends (12, 13), the tubular flexible jacket (8) forming a loop around the press body (6) and the support beam (5);
• at each axial end (3, 4) of the extended nip roll (1), an end wall (9, 10) which is rotatably journaled to allow each end wall (9, 10) to rotate about the support beam (5), each end wall (9, 10) being attached to an axial end (12, 13) of the tubular flexible jacket (8) such that the end walls (9, 10) and the tubular flexible jacket (8) form together an enclosed space (14);
• and on the support beam (5), at least one support element (15) for the tubular flexible jacket (8) which support element (15) is arranged to support a part of the tubular flexible jacket (8) at a location spaced away from the press body (6),
• wherein the at least one support element (15) is arranged to be movable in a circumferential direction such that it can be moved to different positions along the circumference of the tubular flexible jacket (8);
• and the extended nip further comprises:
• at least one curved guide (16) which is carried by the support beam (5) and which extends over at least a part of the circumference of the extended nip roll (1), the curved guide (16) being located inside the tubular flexible jacket (8);
• a carriage (17) which is movable on the curved guide (16) and on which carriage (17) the at least one support element (15) is carried;
• and at least one first actuator (18) which is carried on the support beam (5) and arranged to act on the carriage (17) and cause the carriage (17) to move along the curved guide (16) such that the circumferential position of the support element (15) can be changed.