Patent ID: 7654428

Claim:
A turner bar for deflecting a substrate web in a rotary press in several web running directions, said turner bar comprising: an longitudinally extending outer tube having a cylindrical surface provided with outer air discharge holes for providing an air cushion between the cylindrical surface and the web, wherein the air discharge holes in the outer tube are formed as bores; at least one longitudinally extending inner tube received concentrically with said outer tube and having a cylindrical surface provided with inner air discharge holes, wherein at least some of the air discharge holes in the at least one inner tube are formed as slots extending in a circumferential direction of said cylindrical surface and perpendicular to the longitudinal direction of the at least inner tube, and wherein the circumferential length of said slots in the at least one inner tube increase toward the axial middle of the turner bar so that slots being positioned in an axially middle section of the at least one inner tube have a larger circumferential length than slots being positioned in an axially outer section of the inner tube, wherein the at least one inner tube can be moved both rotationally and axially relative to the outer tube to change the relative position of the inner air discharge holes with respect to the outer air discharge holes to close the outer air discharge holes not needed for said air cushion.