chamber i e between the partition walls 45 and the roll ends the feed pipe 42b is closed so that in this area no nozzles have been arranged into the pipe thus in the lateral compartments 40b no feed of coating agent to the application zone takes place instead in the areas of the lateral compartments 40b spraying of liquid is carried out through the jet pipes 37 to the end areas of the roll so as to lubricate the roll ends likewise in the areas of the lateral compartments 40b the excess quantity of the sprayed liquid is collected and drained off so that the excess sprayed liquid flows into the lateral compartments 40b in the feed chamber from the lateral compartments the excess sprayed liquid is drained off e g through one or several openings 43 formed in the bottom of the feed chamber so that the liquid does not enter into the recirculation system and conduits of the coating agent and dilution of the coating agent is substantially prevented thus the embodiment of fig3 and 3a does not include the collecting trough shown in fig1 a and 2b above with reference to the figures in the drawing the invention has been described in connection with a coating device in which the coating member is a revolving bar 10 30 resting against the roll face 1 coating bar 10 30 is preferably a smooth faced bar but the invention is also suitable for use in connection with a grooved bar because also in such a case the same advantage is obtained with respect to the prevention of the dilution of the coating agent further it is possible to employ the device in accordance.