GB337923A - Improvements in inking mechanisms for rotary printing machines - Google Patents

Abstract

337,923. Hoe & Co.. Ltd., R., (Hoe & Co., Inc., R.). Oct. 5, 1929. Inking-apparatus.-In an inking mechanism for a rotary printing- machine the reciprocating movements of the ink-distributing rollers are effected by a power means independent of the rest of the machine. Means, independent of the power means, may be provided for adjusting the stroke of the rollers. The inking-mechanism supplying the forme-cylinder 2, Fig. 1, consists of two sets of rollers A, B, the set A including reciprocating rollers 48<1>, 49<1> and a reciprocating cylinders 50, and the set B including reciprocating rollers 27<1>, 30', 31<1>, 42<1>, 43<1>. The reciprocating movements are effected by an electric motor which drives a shaft 13, Fig. 6, carrying two eccentrics 14, 15 cc rods 16, 17 to arms 18, 19 pivoted on The arm 18 is connected by a rod 22, 24 of a bell-crank lever fixed to a shaft 25, the other arm 26 of the bell-crank lever carrying a block 26<1> engaging between collars 26<2> on the shaft 27 of the roller 27<1> to cause axial reciprocation of this roller. Simultaneous reciprocation of the rollers 30<1>, 31<1> are effected by arms 28, 29, Fig. 1, fast on the shaft 25. A shaft 35, Figs. 1 and 6, is oscillated in the opposite direction to the shaft 25 by means of arms on these shafts connected by a link 33, and arms 36, 37 fast on the shaft 35 are connected by links 38, 39 to arms 40, 41 which are loose on the shaft 25 and operatively connected to the shafts of the rollers 42<1>, 43<1> so that these rollers are reciprocated axially but move in the opposite direction to the rollers 27<1>, 30', 31<1>. The arm 19 is connected by a rod 23 to an arm 45 on a shaft 46 to which is secured a two-armed lever 47, 47<1> operatively connected to the rollers 48<1>, 49<1> and to the cylinder 50 so that the rollers move in the opposite direction to the cylinder. Rods 22, 36 are adjustably connected to the arms 18, 19 by studs engaging slots in the arms so that the Length of stroke of the rollers may be adjusted.