Abstract: A device for removing water from the returning portion of the peripheral surface of a meshed roll mounted in a planographic printing press comprises at least one roll for removing water pressed against the said returning portion. The peripheral surface of the roll is made of soft and smoothed material, or brushes project to the centrifugal direction from the peripheral surface of the roll. In one embodiment, a smooth roll of rubber or soft resin presses against the meshed roll, a second smooth roll of metal contacts it, a blade scrapes the second roll and a container receives recovered water from the blade.

Abstract: A roller with a doctor blade has both a harder material portion and a softer material portion provided on the peripheral surface in the same radius from the center of the roller, for achieving complete doctoring. The harder material portion forms a minimum belt-like line in a non-perpendicular direction with respect to the axis of the roller, and preventing wear by doctoring against the softer material portion, and limits the wear of the doctor blade, producing uniform wear without a fear of local wear. The softer material portion has maximum area provided between the turns of the belt-like line and facilitates the formation of cells for measuring and the use of a lipophilic material.

Abstract: An apparatus for stacking signatures or the like includes a guide plate having a predetermined angle of inclination and a conveyor for successively loading signatures onto the upper end of the guide plate from the upper side of the latter. The foremost end of a stack of signatures which are being stacked on the guide plate is supported by a first support member which gradually lowers through a section from the signature loading position to an intermediary position, and is then supported by a second support member through a section from the intermediary position to an unloading position. The rearmost end of the stack of signatures is supported by a third support member through the entire section from the loading position to the unloading position. For this purpose, the first, second and third support members are repeatedly moved along the guide plate in relation to each other.

Abstract: A folding machine is composed of a mechanism for longitudinally dividing W-width travelling webs into two parts and overlaying one web on the other, the mechanism being mainly constituted by a former having the configuration of an inverted triangle with the base having a length equivalent to the W-width of a travelling web, and a slitter knife; a vertical pair of mechanisms for longitudinally folding the 1/2 W-width travelling webs into two parts which is mainly constituted by a pair of formers having the configuration of an inverted triangle with the base having a length equivalent to the 1/2 W-width of the travelling webs, the pair being veritcally disposed on the downstream side of the slitting and gathering mechanism at the same position with respect to the lateral direction of the travelling webs; a mechanism for cutting and folding the 1/4 W-width travelling webs in the lateral direction thereof; and a means for combining the route for the 1/2 W-width travelling webs which are discharged from the upper

Abstract: The known offset rotary press of the type that at least a pair of printing cylinders consisting of a plate cylinder and a blanket cylinder are disposed in juxtaposition adjacent to each other, and that the adjacent plate and blanket cylinders are rotated at the same revolution speed in the opposite directions to each other through gears having the same pitch circle diameter and the same number of teeth, is improved in that in the case where one of the pair of printing cylinders having a slightly larger finished cylinder diameter than that of another printing cylinder is positioned upstream on the side of power transmission with respect to the printing cylinder having the smaller finished cylinder diameter, an intermediate gear connected to a drive source is rotatably mounted on a cylinder shaft of the printing cylinder having the larger finished cylinder diameter on which a first gear is fixedly mounted also, and in that the intermediate gear and the first gear are respectively meshed with a second gear fixed

Abstract: There is provided a mesh roller having small recesses defined in its peripheral surface and interposed between a fountain roller for picking up ink from an ink pan and inking rollers held in contact with a plate cylinder, the fountain roller being rotatable at a peripheral speed much lower than that of the plate cylinder.A pair of doctor blades actuatable for rotations in normal and reverse directions, respectively, is disposed in confronting relation to the mesh roller, and a means is provided for switching a system for driving the all cylinders into a normal or reverse operation mode.

Abstract: In an offset rotary printing press which is equipped with a pair of blanket cylinders which can be shifted between two ultimate positions, in which one is a blanket to blanket type printing mode with four series-contacting cylinders exclusive of an impression cylinder and the other is a satellite type printing mode with five series-contacting cylinders including the impression cylinder, the blanket cylinders can be shifted between the two ultimate positions via two intermediate throw-off positions by three strokes of an actuator with switching by a clutch.The amount of displacement of each of the blanket cylinders between the two ultimate positions exceeds the tooth height of driving gears for the blanket cylinders and the cylinders contacting with said blanket cylinders.

Abstract: In an inking mechanism in a rotary press a doctor blade is provided to prevent the mixing into the ink of bubbles which cause the scattering of an ink mist upon bursting of the bubbles. The doctor blade can swing along the circumferential surface of eccentric sleeves supporting both ends of a fountain roll. A free end portion of the doctor blade contacts with a position just progressed in the rotative direction on that portion of the circumferential surface of a mesh roll to which ink is transferred from the fountain roll. A scraped ink returning plate is provided close to and along the circumferential surface of the fountain roll providing a streamline flow of the scraped ink without turbulent flow. The free end portion of the doctor blade can be displaced for cleaning and replacement.

Abstract: For imparting end-to-end vibration to an inking roller in a printing press, a worm is fixedly mounted on one of the opposite trunnions of the inking roller. A worm wheel in mesh with the worm is rotatably carried by a reciprocator which is mounted on the trunnion for vibratory motion therewith but which permits its rotation. An eccentric shaft extends eccentrically through the worm wheel for simultaneous rotation therewith about the axis of the latter. A pair of offset extensions projecting eccentrically from the opposite ends of the eccentric shaft are engaged in stationary guideways and thereby constrained to rectilinear reciprocation in a direction normal to the trunnion axis, for transforming the rotation of the worm wheel into the endwise vibration of the inking roller via the reciprocator.

Abstract: In a counter stacker for stacking and dividing every predetermined number of printed copies including a counter disposed on a first path of convey along which said copies are successively conveyed partially superimposed one on the other at a constant pitch of superimposing, a first dividing plate disposed on said path and adapted to be inserted between said copies, the above mentioned system has an odd copies dividing and delivering mechanism including a second dividing plate located at the same position with the first dividing plate or at least at a downstream side position of the first dividing plate and a second path only for odd copies and shunting from said first path at said second dividing plate.

Abstract: A pair of three cylinders train units and a four cylinder train unit are provided in relationship such that a pair of impression cylinders of the former are adjacent to a pair of blanket cylinders of the latter, respectively.The blanket cylinders of the latter are switched between a first position in which the blanket cylinders make contact with each other and with their respective plate cylinders and a second position in which the blanket cylinders are isolated from each other, make contact with their respective plate cylinders and with their respective impression cylinders of the three cylinder train units.The switching between extreme positions can be completed in one motion by an angle increase shifting mechanism using gears which are added to the switching means.Throw-off means for the blanket cylinders can be diverged independently and branchingly from each extreme position by a pin clutch mechanism which is added to the switching means.

Abstract: A folding mechanism for a printing press comprising a frame of the printing press, a folding cylinder rotatably mounted on said frame, an eccentric member fixedly secured to said frame, said eccentric member having first and second holes formed therein, a sun gear shaft inserted in the first hole of said eccentric member and fixedly secured thereto, said sun gear shaft having a sun gear formed at one end thereof, a gear box rotatably mounted on said sun gear shaft, and a drive shaft rotatably mounted on said frame at one end thereof, the other end of said drive shaft being fixedly secured to said gear box and adapted to rotate together.

Abstract: In a mechanism for selectively obtaining two extreme positions of printing cylinders, i.e. a contact of four cylinders except an impression cylinder and a contact of five cylinders including the impression cylinder, through effecting angular displacements of eccentric sleeves attached to respective printing cylinders simultaneously by a common link mechanism, an angle increase shifting mechanism is interposed between the starting end of the link mechanism and the end of an actuator. Whereby, the pair of printing cylinders can be directly shifted from one to the other extreme positions by a single stroke of the actuator.A member attached to a main shaft of the angle increase shifting mechanism is divided into three pieces of a front piece, center piece and a rear piece, and the center piece is adapted to be selected engaged by and disengaged from the front and rear pieces by means of a pin clutch mechanism.

Abstract: A multiple-color, offset rotary press is disclosed wherein each plate cylinder carries two printing plates, with one of them wrapped around a larger diameter portion of the plate cylinder and the other around a tube slidably fitted over a smaller diameter portion of the cylinder. A shaft secured to the tube and extending coaxially from one end of the plate cylinder, and an axle extending coaxially from the other cylinder end, are mounted on frame means for independent rotary and axial motion. A pair of driven helical gears are mounted respectively on the shaft and the axle for simultaneous rotation therewith but for axial motion relative to same and are meshed respectively with a pair of driving helical gears fixedly mounted on the opposite axles of a corresponding blanket cylinder. The positions of the printing plates are separately adjusted in the circumferential direction by causing axial motion of the driven helical gears, and in the axial direction by causing axial motion of the shaft and the axle.

Abstract: A fixed guide plate is disposed on one side along a paper passage before and after turning bars, and a circulating running belt is disposed on the other side along said paper passage, so that the front end of running paper is fed in the state gripped therebetween; in each turning bar, the end portion of said guide plate is curved along the peripheral face of the turning bar with a clearance corresponding to the paper thickness, so that the front end of running paper is guided by said curved portion; and an endless belt from which a sticking plate projects toward the paper running passage is made to stand by at the point where the front end of running paper separates from the final turning bar, so that the top of running paper is stuck to the sticking plate of the endless belt and withdrawn from the turning bar mechanism; or, in each turning bar, flanged pins are planted on the side face of the circulating running belt, and a female type rail curved along the peripheral face of the turning bar with a clearance

Abstract: An upright conveyor belt is made to run only at one side of the row of papers. A section plate is operatively arranged to be inserted into the line of the conveyor, for retaining subsequent papers within the row. A blade is adapted to be moved across the line of the conveyor so as to sample a predetermined number of papers out of the row. A feeler for detecting the leading end of the earliest subsequent paper is provided at a position spaced downwardly from the location of the blade insertion. The blade can be timely actuated by the signal from a limit switch provided at the base of the feeler. A fork is provided at the side of the row of the papers so as to interrupt the line to eject the subsequent papers along the fork.

Abstract: Sampling apparatus for installation on a predetermined path along which sets of printed and folded sheets are fed in overlapping relationship from the folder to the counter-stacker of a web-fed rotary press. The sampling apparatus comprises a divider mechanism which includes a divider blade and which is pivoted by a fluid actuated cylinder to and away from a working position, in which position the divider blade is disposed in the printed sheet path to cause several consecutive ones of the printed sheet sets to travel on one of its sides, where the path is open to a sample exit, and the succeeding printed sheet sets to travel on its other side. Immediately following the movement of the divider mechanism to the working position, an extractor mechanism comprising a pair of extractor blades is pivoted by another cylinder past the printed sheet path for delivering out of the sample exit at least the last of the several consecutive printed sheet sets travelling on the said one side of the divider blade.