may be constructed to have an inverted configuration wherein the press roll located above the backing roll in fig2 is shown a roll head 4 of the press roll of fig1 in the fashion illustrated in the diagram the outer rim of the roll head comprises a plurality of sector plates 7 that are mounted on the body 8 of the roll head by screws not shown in the diagram the sector plates include a locking hole 9 passing through the sector plate for locking the lateral rim of the blanket to the sector plate each pair of the locking holes is adapted to accommodate two pin shaped locking elements 10 shown by a dashed line in the diagram in a rack and pinion fashion the toothed locking elements 10 are adapted movable from the exterior side of the roll head in the radial direction of the roll head by way of rotating a gearwheel 11 functionally cooperating with the locking element fig3 shows a cross sectional view of a roll head taken along plane b u2014 b the roll head 4 is rotatably mounted on a support member 6 by an annular bearing element 13 in the exemplary embodiment of fig3 the bearing element is a ball bearing alternative bearing arrangements include e g some other type of rolling bearing or optionally a sliding bearing with sleeve or spherical journal surfaces can be used the roll head comprises a body 8 and sector plates 7 connected to the body by screws the body 8 is assembled from plural roll head rim parts by joints secured by screws the rim parts.