Abstract: A bolt-like fixing assembly for use in improving the strength and/or stability characteristics of rock structure, such as for reinforcing rocks, includes an elongate structure one end of which is adapted to be fixed within a bore formed in a rock and a device for fixing the other end of the elongate structure to the surface of the rock. According to aspects of the invention, the elongate structure is constituted of at least two rod-like members and a fixing device of the elongate structure is constituted by a wedge-shaped member and a bearing plate, such as a washer. The elongate structure is preferably constituted of three rod-like members, each of which preferably is constituted of a bulb steel rod.

Abstract: On-machine supercalender apparatus adapted to be located at the discharge end of a paper making machine of the type which includes hard and soft calender rolls forming soft calendering nips with each other. The calender rolls are arranged in at least three roll groups, each of the calender roll groups consisting of three calender rolls, namely a central hard calender roll and two outer soft calender rolls. The calender roll groups are separate from each other in that the calender rolls of one group are neither directly or indirectly in nip contact with the calender rolls of another group. At least a majority of the soft calender rolls are replaceable during operation of the apparatus without any significant interruption in operation.