the ends of the wound web roll the embodiment shown in fig2 a 2b is similar to that shown in fig1 a 1b except that the means for mounting and actuating the working heads is somewhat different thus in fig2 b the circumferentially extending lines of glue 21 22 21 39 22 39 are applied by working heads which are attached directly to actuators 32 39 33 34 these actuators like the actuator 30 shown in fig1 a can comprise a hydraulic or pneumatic powered cylinder or an electric powered ball type screw or similar linear motion power device these actuators 32 39 33 39 can also serve a second function as tube reel spool 34 34 39 loaders for moving fresh tubes or reel spools into their working position from a storage position in a channel beneath the backing roll 10 reference is made to wo 91 18815 and de 38 08 271 a1 the feeding of fresh cores upwardly into their operating position where they are supported by the core chucks is known to those skilled in the art and therefore is not shown in detail and will not be described further the traversing movement of the actuators 32 39 33 39 on which the working heads 27 34 28 39 are mounted is accomplished by moving the carriages 19 19 39 on which the axes 18 18 39 are pivotably supporting the support arms and on which the actuators are also mounted so as to move.