an arrangement for lifting the gluing unit to rotate around the shaft so that the glue applying roll will be positioned closer to the web leading roll and the device includes at least one cam mounted in the frame to engage a stop on the subframe of the glue unit to limit the amount of movement in elevation of the gluing unit application_number US 7804393 A description the principles of the present invention are particularly useful when incorporated in a single face station generally indicated at 1 in fig1 and 2 in a single face station 1 a first paper web 5 coming from above is corrugated when it passes between an upper corrugating roll 10 and a lower corrugating roll 12 while engaged on the lower corrugating roll 12 the web receives a layer of glue on the crest of the corrugations from a glue applying roll 26 prior to the application of a covering paper 7 by means of a lower pressure roll 14 the corrugating rolls 10 12 and 14 are mounted in a main frame 3 which includes a pair of lateral walls 4 a gluing unit 20 includes a glue container 21 in which the glue application roll 26 dips a dosing roll 28 is positioned close to the glue application roll 26 at a predetermined distance adjusted at any time therefore when the glue.