GB168933A - Improvements relating to inking mechanism for printing machines - Google Patents

Abstract

168,933. Butler, J. H., and Phythian, T. E. April 14, 1920. Inking-apparatus.-The duct blade of an inking- apparatus is adjusted at various points of its length by fluid-pressure means operated from a control station. As shown in Fig. 1, the blade a is secured to a support b on which are mounted a number of cylinders d containing pistons e in contact with the blade. The cylinders are connected by pipes f to a hollow support g to which fluid. under pressure, which is preferably oil, but may be water, air, gas, or ink such as that used in the duct, is supplied from a tank or pump. When the cylinders d and pipes f are full of fluid, communication with the supply is cut off by means of valves formed by the conical ends of cylinders h screwed into the support g. The cylinders h contain plungers i having extension i<2> screwed through the cylinder covers h<2> and adapted to receive an operating key by which the pressure in the cylinders d may be adjusted as required. The cylinders d may be fitted with pressure-releasing valves and, when ink is employed as the pressure fluid, these valves may communicate with the duct. In a modification, the plungers i are replaced by diaphragms and the pistons e are actuated through diaphragms. An indicating plate, which may be the side of the support g, is provided at the control station to indicate to which parts of the blade the various cylinders h relate.