Dosing device on an ink fountain

A mechanism for adjusting the blade of an ink fountain with respect to a fountain roller comprising, in combination, a frame, a plurality of zonal adjusting subassemblies spaced along the blade at equal intervals, each subassembly including a pin slidable in the frame at right angles to the edge of the blade, the pin having a tip and a rear end portion, the tip being positioned to engage the edge of the blade at an angle thereby to hold the blade closely spaced to the cylinder, a slide secured to the rear end portion of the pin and guided for sliding movement with respect to the frame, a support member mounted on the frame adjacent the slide, said support member having a transverse cylindrical opening, a cylindrical adjusting member fitted in and rotatable in the opening, the cylindrical adjusting member having an eccentric crank for engaging and positioning the slide, the cylindrical adjusting member further having an adjusting arm projecting radially therefrom, the arm having a calibrated scale including a reference mark fixed with respect to the frame, the cylindrical adjusting member having a positive detent phased with the reference mark, the pin being threaded into the slide and the rear end of the pin being engageable by a turning tool so that when the adjusting arms are in detented reference position the blade may be preliminarily adjusted, zone by zone, into a reference spacing with respect to the roller by turning the pin in one direction or the other in each of the subassemblies, all of the reference marks and all of the scale graduations being in axial alignment with one another, the blade being finally and individually adjustable in each zone by movement of the corresponding arm with respect to its calibrated scale to establish a running condition.