Abstract: Apparatus for applying disc-shaped end walls to the end faces of rolls of convoluted paper in a positioning unit wherein the rolls are maintained in horizontal positions has a magazine with two rows of floor-mounted pallets for stacks of superimposed end walls having different diameters. A conveyor which is mounted for travel between the two rows of pallets has lifters which can simultaneously pick up end walls from selected pairs of transversely aligned stacks and delivers the thus lifted end walls to an orientation changing unit which moves the end walls from horizontal into vertical planes and centers the end walls prior to applying them to the respective end faces of the roll in the positioning unit.

Abstract: Apparatus for providing rolls of convoluted paper or the like with cylindrical envelopes defines an elongated path wherein the rolls are advanced sideways first to a centering station where the end faces of successive rolls are overlapped by inner discs which are attached to the rolls by plugs extending into the end portions of central openings provided in the cores of the respective rolls. The rolls are thereupon advanced to a draping station where they are set in rotary motion and provided with blanks of wrapping paper whose marginal portions are folded over the outer sides of the inner discs before the rolls advance to a pressing station where the folded-over marginal portions of the blanks are compressed against the outer sides of the inner discs and, at the same time, the pressing plates of the pressing device apply outer discs to the folded-over marginal portions to thus complete the making of cylindrical envelopes for the respective rolls.

Abstract: Apparatus for providing cylindrical paper rolls with envelopes consisting of inner discs which are adjacent to the end faces of the rolls, of blanks which are draped around the peripheries of the rolls and whose marginal portions are folded over the inner discs, and of outer discs which are pasted over the folded marginal portions of the blanks has a feeding unit which delivers successive rolls axially to a monitoring station where the dimensions of the rolls are ascertained by sensors and where the recesses in the end faces of the rolls receive expandible clamping heads of a lifting device serving to advance the rolls, in horizontal positions, past a draping and thereupon past a blank-folding station. The heads are movable toward each other in response to signals from the sensors to enter the recesses of a roll at the monitoring station, and such heads deliver successive rolls to an intermediate conveyor which, in turn, delivers successive rolls to an orientation changing device.