any medium for example water or starch or any coating color e g a cb coating color can be applied by means of an additional applicator roll 15 interacting with an additional feed and dosing system 16 on the backing roll which transfers this medium then to the underside of the paper web 3 as indicated in fig1 the peripheral speed v 1 of the additional coating roll is lower than the operating velocity v of the overall device accomplished thereby is an especially fine dosing of the applied medium the exemplary embodiment relative to fig2 differs from fig1 essentially only in that a shoe press roll 1 39 is provided instead of a regular backing roll shoe press roll 1 39 has a revolving flexible press shell 1a through which extends a stationary support 7 movable radially a press shoe 5 has for the press shell 1a a concave sliding surface adapted to the coating roll 2 press shoe 5 is fitted in the support 7 and can push the press shell 1a sensitively onto the coating roll 2 opposite the movable press shoe 5 a stationary sliding shoe 8 with a convex sliding surface is provided on the support 7 here an additional feed and dosing device 16 can be fitted on the outside of press shell 1a for application of any medium via press shell 1a on the other paper side according to fig1 and 2 the paper web passes essentially from top to bottom through the nip.