Abstract: Cutting device in folding apparatus of a rotary printing machine for forming a second longitudinal fold in foldable items, the folding apparatus having a folding blade disposed parallel to a travel direction of the foldable items and disposed in the middle of the items and between two folding rollers located below the folding blade, and a paddle wheel disposed downstream of the folding blade in the travel direction for receiving and depositing the folded items on a delivery belt, the cutting device includes means defining cutting grooves formed in an outer cylindrical surface of one of the folding rollers, a cutting roller associated with and disposed adjacent to the one folding roller and carrying cutting knives adjustable in position with respect to the cutting grooves, both of the folding rollers being formed on the outer cylindrical surfaces thereof with recesses wherein respective conveyor belts are received, the conveyor belts having respective strands superimposed on one another, the superimposed stran

Abstract: A master frame assembly for use in a screen printing press carries an upper seal means to seal directly to a screen printing frame to provide an enclosed sealed chamber within the screen frame to contain solvents associated with the ink within the sealed chamber. The preferred upper seal means includes a traveling cover sheet which is pressed directly into sealing engagement with the underlying screen frame about all four sides of the screen frame. Mounted on the master frame are side seal bars for pressing the traveling marginal edges of the sheet against the underlying sides of the screen frame. These side seal bars are adjustably and movably mounted on the master frame so that they may press the traveling cover sheet against the sides of each of several different widths of screen frames.

Abstract: A straight-line insert machine for inserting materials into a newspaper jacket is disclosed. The jacket is positioned in a moving pocket which is hinged but closed at the bottom such that when the pocket opens, as vacuum is applied to the walls of the pockets, the jacket opens. Vacuum flanges moving at the same linear speed as the pockets mate with vacuum stems attached to the pockets for a predetermined time and apply vacuum to the walls of the pocket so that the front and rear portions of the newspaper jacket are held against the fixed and movable walls, respectively, as the pocket opens. The pockets and vacuum system are synchronously driven. Camming action is used to open and close the pockets. Insert hoppers place insert materials into the open jackets. Because the machine is modular, additional insert hoppers and pockets can be added.

Abstract: An impression cylinder (11) and a blanket cylinder (2) are made in contact with/separated from each other at prescribed timing. Continuous paper (12) inserted between the impression cylinder (11) and the blanket cylinder (2) is intermittently fed in association with the said timing for printing. A pin feed tractor (13) arranged on an inlet side of a printing position forward/reversely feeds and stops the continuous paper (12) at timing previously set in relation to the said timing for contact/separation. A suction conveyer (14) arranged on an outlet side of the printing position sucks and conveys the printed continuous paper (12) while switching its suction force in plural of stages in relation to the said paper feeding timing.

Abstract: A printing press has an apparatus for preventing contact of wet ink sheets with the chain delivery mechanism. The printing press has an impression cylinder and a blanket cylinder through which sheets are drawn by the chain delivery mechanism. The chain delivery mechanism has two sprockets mounted to a shaft, each of which rotates runs of chain to pull the sheets from the cylinders. A nozzle is mounted adjacent the shaft for discharging jets of air against the sheets to push them away from the shaft. An air compressor supplies air to the nozzle. A regulator valve allows the pressure at the nozzle to be varied depending upon the type of sheets.

Abstract: An apparatus is provided to sequentially form and transport sheet material assemblages to a receiving location. The apparatus includes a collating conveyor assembly which is operated to form the sheet material assemblages. A gripper conveyor assembly sequentially grips sheet material assemblages formed by the collating conveyor assembly and transports them to a receiving location. A receiving conveyor transports the sheet material assemblages from the receiving location. The gripper conveyor assembly includes a plurality of grippers which are sequentially moved beneath the collating conveyor assembly with the grippers fully open and facing upwardly. Sheet material assemblages are sequentially dropped from the collating conveyor assembly downwardly into the upwardly opening grippers. Each of the grippers in turn is closed to clampingly grip the sheet material assemblages.

Abstract: An improved torsional limiting device and associated control system are incorporated in a large scale trencher between the power source and the cutting wheel to provide for protection of the equipment components in the event the cutting wheel encounters unforeseen obstructions. The control system provides for prompt and variable adjustment by the operator of the amount of torque transmitted to downstream components and also provides for the prompt and easy resumption of the trenching operation after an obstruction has been encountered.

Abstract: The webs of printed material 1a, 1b printed in a printing machine are assembled in the desired manner, after being previously cut, via various deflectors (e.g., 12, 17, 18, 23, 24, etc.) and are optionally provided with inserts or wrappers which have been cut to size and come from rolls (40, 41). After braking has been effected in braking stages (e.g., 37a-37h), the fold is formed on folding tables (38a-38h). The folded products can be assembled in any desired manner on collecting tables, after which they are either paid out below the collecting tables (39a-39h) or combined with further folded products (FIG. 1).

Abstract: Method and apparatus for automatically separating interfolded sheets from an interfolder into bundles having a predetermined count. Two separator plates are inserted into the stack of sheets at the proper sheet count, defining a bundle. An elevator and one of the separator plates take the bundle away from the discharge area of the interfolders.

Abstract: To provide double-infolded printed copy substrates for short copies, a collection and assembly apparatus assembles copy of a first type, for example representative of an advertisement for ladies' fashions, with folded copy of a second type, for example representative of men's fashions. The apparatus forms a first cross fold in a first transverse folding stage (5, 7), typically a folding blade-folding cylinder unit, and forms a longitudinal fold by a longitudinal folding stage (13, 14), typically a folding blade (14) pushing printed copy between gripping rollers (13).

Abstract: A resilient sheet gripper for a sheet-fed rotary printing press having a gripper finger resiliently connected to a clamping member secured to a gripper shaft is provided including prestressed spring strips for connecting the gripper finger to the clamping member with each spring strip having articulation points disposed along a line passing substantially through the axis of the gripper shaft.

Abstract: The dual former (1, 2) apparatus includes a central housing and support (7) within which is retained a central common drive train (8). Located symmetrically with respect to a center line (21) through the housing and support (7) are respective transport roller units (9-12), cutting cylinder units (13, 14) and distribution apparatus units (15, 16; 27, 28), all driven from the common drive train (8). Some (9, 10) of the units may be cantilevered from the central housing and support (7), others (11, 12, 13, 14) have their remote ends journalled in bearing plates (17, 18) secured to the central housing structure (7) while still others (15, 16, 27, 28) are journalled in bearing plates secured on a base (6) which can also support the central housing structure, for example by being a metal element to which the central housing structure is welded. Delivery of folded, cut and separated printed subject goods is, preferably, laterally of the central housing structure.

Abstract: This invention relates to a process and an apparatus for automatically folding long hose, wrapping them up in dressing paper and packing them into an envelope using dressing paper capable of being folded in three on two crease lines. A sheet of the dressing paper, fed on to the start position of a conveyor unfolded, is intermittently transferred at a constant interval firmly held by a suction belt; to begin with one third on one side of the dressing paper, to form the inner-flap part, is bent up during transfer; on its arrival at next stop, a pair of hose are put on the central part of the dressing paper, to form the back cover part; the inner-flap part is laid on the hose; one of the hose ends behind the other on the conveyor is laid on the inner-flap part. A weighting plate, after having pressed them together, moves forward in order to tense the hose, and pass through under a fixed plate on which the other hose end is placed, whereby the second hose end is put on the first one.

Abstract: A device for zig-zag folding a series of web segments connected at transverse lines of perforation and for separating a pre-determined series of the web segments into stacks having co-acting folding rolls adapted to deliver a zig-zag folded web, a pair of opposed cantilevered plates movably mounted adjacent the folding rolls to provide alternative support for a developing stack and to prevent concavity, and means for moving the plates.

Abstract: An apparatus and method for oscillating the form rollers in a lithographic printing press to apply a smooth, relatively uniform coating of ink to the ink-receptive areas of a lithographic printing plate. The apparatus is comprised of a shaft rotatable about its own axis and a roller concentrically disposed on the shaft. The roller is preferably comprised of a hollow cylindrical metal core surrounded by a rubber covering. First and second bronze bushings are partially inserted into the hollow core at respective opposite ends of the roller. The shaft has first and second shaft keys for mating with complementary first and second keyways formed in the respective first and second bushings to allow the bushings to engage the shaft for common rotation while allowing the roller and bushings to slide axially with respect to the shaft. First and second collar members are disposed at respective predetermined locations on the shaft for limiting the axial movement of the roller on the shaft between selected limits.

Abstract: An instantaneous adjustment device for a doctoring blade assembly operatively linked to a cylinder in a printing press is provided which includes, interposed to the piston rod of a cylinder-piston unit actuated by compressed air and the oscillating holder assembly accommodating the doctoring blade, a mechanical means, such as a spring for storing up a force, and/or a means effective to periodically transfer an impact force to the doctoring blade oscillating holder.

Abstract: Apparatus and process for interfolding a pair of webs into a plurality of bundles, the process comprising conveying the webs through cutting means, a first web-directing means, and a folding means in a first path to form a first bundle, and conveying the webs through cutting means, a second web-directing means, and folding means in a second path to form a second bundle.

Abstract: A sheet folding apparatus including a plurality of sheet processing units each having a couple of folding rollers, a deflector and a folding position controlling passage. One set of the apparatus is sufficient to effect two-folding, z-folding and reversed z-folding of the sheet. A guiding member is disposed closely adjacent to the nip of the folding roller couple for conveying the sheet out of the folding positions controlling passage and for forming a new fold. When the sheet is three-folded, an undesirable double fold is prevented, which may otherwise be produced by an undesirable fold formed adjacent to the already formed fold when the sheet is folded second time.

Abstract: A paper circulating assembly is provided for use in a field sequential printing apparatus such as a facsimile. The facsimile includes an ink ribbon having multiple color ink segments. A piece of paper is conveyed ultimately into a printing paper path and to the ribbon and printing platen for printing. The printing platen conveys the leading edge of the printed paper to a gripping arm of the paper circulating assembly. After a predetermined time period, the leading edge of the paper rests in the gap created between the gripping arm and the gripping platen, and the gripping arm closes against the gripping platen. Thereafter, the secured leading edge is conveyed to a recirculating paper path which flows into the printing paper path, and stays in this position until the trailing edge of the printing paper is just about to enter the printing paper path. During this time, the portion of the paper which lies between the gripping arm and the printing platen gathers in a loop in a paper loop area.

Abstract: The present invention relates to a squeegee arrangement for silkscreen printing machines, comprising two squeegees arranged side-by-side and made from a somewhat flexible material, and respective squeegee holders. The squeegees (5,5a) are arranged to move relative to a stencil (3) having a printing pattern provided thereon and located above a material substrate (4) to be printed upon. The squeegees are arranged to press print-forming substance (10) through the stencil (3) and onto the material substrate (4) during this relative movement. A plane extending centrally through respective squeegees forms an obtuse angle with the stencil and the material substrate in relation to the directional plane of squeegee movement. The centrally located planes of the two mutually adjacent squeegees (5,5a) subtend therebetween an angle of less than 120.degree., and greater than 60.degree.