Abstract: To provide for threading of paper webs to a folding apparatus (140), a plurality of paper webs (1-8; 77-84) are fed from respectively opposite sides to a plurality of deflection rollers directing the paper webs in a vertical combining plane (9). The deflection rollers are positioned in vertically staggered arrangement. The paper webs are positively fed by transport rollers (26-29; 53-56) or transport belts (110-113; 128-130), located on respective carrier plates (18, 19; 93, 94) which are movable towards or away from the combining plane and on which the transport rollers or belts are located, staggered, between the deflection rollers on the same side and so as to engage the deflection rollers on the other side of the combining plane, to provide for positive drive of paper webs and feeding to the folding apparatus (140) during threading, or upon tearing of a web, but permitting withdrawal laterally upon full-speed operation of the paper handling apparatus, for example the folder.

Abstract: A lever at each end of a pressure roll has one arm connecting with means for applying a force thereto and another arm applying a bending moment through rotary bearings to the shell of a pressure roll. In one embodiment, the axle is non-rotating and is forked at the ends and mounted in a sliding carriage on stationary supports there, on which carriage a pressure and cylinder and piston are provided for carrying a force to a lever pivoted on a pin bridging the fork of the axle end to apply the bending moment to the roll shell through a rotary bearing. In another embodiment, the axle is rotary and connected at various places intermediate the roll ends by connection pieces past which bending moments may be transmitted and the lever is tubular and mounted on a stub of the axle by a swing bearing, and the bending moment is transferred to the shell by another swing bearing. Application of force to the lever for bending the roll shell in this case can be done manually with a set screw.