Abstract: The manufacture of bags requires stacks of tube sections to be separated as desired. The stacks must also be able to be turned 180.degree. and then fed to a separating device so that filling valves can be attached to varying end areas. A suitable device for feeding and for turning and feeding bundles includes a support bracket which is seated in bearings in a frame so as to rotate or pivot. The support bracket is provided with a rotary or pivot drive. Guideways, running crosswise relative to the support bracket, are provided for rods which can be moved back and forth by a drive. The rods support a beam parallel to the support bracket which is connected perpendicularly to a number of mutually parallel arms. The device includes a crosswise support bracket which is connected to the support bracket by joining pieces. Tines are supported approximately parallel to the arms.

Abstract: A device for stiffening workpieces of paper includes elements that provide the workpieces with an undulated profile. The elements may be in the form of freely rotatable disks or belts that revolve around freely rotatable rollers. Respective sections of the disks or belts which come in contact with the workpieces extend through a common central plane in such a way that they provide the workpieces with an undulated profile. In order to prevent the profiling elements from laterally displacing the workpieces, a conveyor is provided which clamps the workpieces between respective conveyor sections.

Abstract: An apparatus for manufacturing cross bottom sacks from laid-flat tubular sections consists of a frame having:- a table, means for holding the tubular section thereon in a processing station where the ends of the tubular section become opened out into a bottom square or rectangle, a suction gap arranged in the table in the zone of one of the ends of the tubular section, and suction means mounted in the frame above the suction gap and which is able to be raised and lowered for opening one end of the tubular section. Above the plane of the tubular section situated in the processing station, a slide can be extended and retracted over the table in the direction of the median line of the tubular section, the median line of the slide defining with the median line of the tubular section a plane perpendicular to the plane of the tubular section. The width of the slide is less than the interspacing of the hypotenuses of the two opened-out corner folds from each other.

Abstract: A device for isolating stacked flat workpieces includes a driven, web-like supporting framework which rotates in a frame. Rotating rolls are supported at equal intervals on a circle concentric to the turning axis of the framework. Each roll is provided with a row of suction boxes. Driving gears of the rolls are rotated, in a direction opposite to the rotation direction of the supporting framework, by a spider gear fixed to the framework. Intermediate gears, through which the spider gear rotates the driving gears, are supported in the supporting framework. A stacking cartridge is placed at the external cylinder defined by the row of suction boxes in such a way that each row of suction boxes of each roll withdraws an exposed workpiece from the cartridge. A transport device which removes an isolated workpiece and further transports the workpiece is placed at the external cylinder. In order to prevent a stack from being set into vibration by a passing roll, a stacking cartridge completely confines the stack.

Abstract: A device for applying adhesives includes an adhesive chamber, the front side of which is closed by an adhesive roller with a vertical rotational axis which, in cooperation with one vertical side wall of the chamber, delimits a return gap for unremoved adhesive. A sealing roller is arranged parallel to the adhesive roller, forms a gap for the adhesive in cooperation with the adhesive application roller and is sealed relative to the other vertical side wall of the chamber by sealing elements. A glue application roller can be adjusted such that it adjoins the adhesive roller, receives preferably formatted glue sections from the adhesive roller and transfers the glue sections to the work pieces on which the glue needs to be applied. In order to prevent accumulations of the adhesive in front of the return gap which are discharged in uncontrolled fashion, a strip of flexible and/or elastic material is fastened to the side wall that delimits the return gap.

Abstract: An apparatus for the transfer of flat workpieces from a first conveyor to a second conveyor consists of a first conveyor with two endless pulling members circulating parallel to each other over guide wheels or drive wheels which carry in pairs supporting elements with pins. The pins perforating and conveying the workpieces project above a table forming the conveyance path by virtue of the supporting elements and the pins having attachments which run in guides that are parallel to the table and which displace the attachments towards each other. The pulling members of the second conveyor carry in pairs supporting elements with pins which project above a table forming the conveyance path. In the transfer zone of the two conveyors, a plunger is arranged in the frame and mounted in guides. The plunger can be raised and lowered and impales the workpieces onto the pins of the second conveyor.

Abstract: A device for pulling open continuously cross-conveyed tube sections for the purpose of forming bottoms in the manufacture of sacks has support tubes provided in pairs and connected to vacuum sources by lines. Each of the support tubes forms the coupler of two parallel connecting rods housed in a machine frame so as to rotate and is equipped with a row of radial suction units. A crank is connected to a shaft of a parallel connecting rod. A crank pin, supporting a slide ring or a roll, slides in a radial guide attached to a shaft. The shaft of the guide is offset relative to the parallel connecting rod shaft such that an essentially translational movement corresponding to the conveyance speed is superimposed on the opening movement of the row of suction units. In order to achieve a better opening of the tube section ends even at higher conveyance speeds, the radial guide is formed in a curved shape such that the time of uniform motion of the suction units and the tube section is lengthened.

Abstract: A doctor blade device of a rinsable ink application device of a rotary press is cleaned by first pumping ink back out of an ink chamber of the doctor blade device via a discharge line into an ink tank. Subsequently, from a solvent tank and via a feed line, solvent is directed into the ink chamber. During a predetermined time span, solvent is directed via the discharge line into the ink tank. Subsequently, the solvent, which is still contaminated with ink, is pumped into a contaminant chamber within a predetermined time span. The solvent flow from the solvent tank is interrupted and the solvent is pumped into the contaminant tank. Fresh solvent is then pumped via the feed line into the ink chamber, the suction line to the solvent tank is closed, and the solvent is pumped via the feed and discharge lines within a closed rinsing cycle for a predetermined amount of time. The circulating solvent is then directed into the contaminant tank.

Abstract: A palleting device for palleting stacks of flat objects on a height-adjustable pallet includes a moving support device located above the pallet. The stacks are delivered onto the moving support device by a supply conveyor and into formation on the pallet or on a pallet stack forming on the pallet. The layer to be stacked is ejected from the support surface by a release motion of the support device while retaining the stacking pattern of the stack. In order to be able to place the palleted stack onto the support device so that it is lined up edge-to-edge, the supply conveyor is formed from two conveyor belts which are separately controllable and positioned in alignment with each other in a common plane parallel to the support device. The front delivery rollers of the belts can be moved in both the same and opposite directions by movement of lower conveyor belt strands.

Abstract: A needle roller arrangement includes several needle rollers arranged in a freely rotatable manner in a rotary frame on a circular line which is concentric to its rotational axis. One of the needle rollers interacts with a brush roller for perforating a material web passing through the arrangement. In order to be able to lift the needle roller interacting with the brush roller away and replace it while requiring less energy, each roller is arranged inside the rotary frame such that it can be lifted off of the brush roller. The needle roller interacting with the brush roller is respectively provided with an arrangement for removal from the brush roller and application to the brush roller.

Abstract: A printing press includes a central impression drum seated in bearings in a printing press frame. The drum is provided with a drive. At least one printing unit has a driven printing cylinder, which can be pressed against the central impression drum, and an inking roller, which can be pressed against the printing cylinder and which operates in combination with a cleaning inking system. The central impression drum, the printing cylinder and the inking roller have gears on their axles for driving them. The anilox roller is provided with a special continuous running drive. The printing cylinder gear can be coupled with the central impression drum and the anilox roller gear can be coupled with the printing cylinder gear by parallel displacement of the printing cylinder and anilox roller, respectively.

Abstract: A device for decollating stacks of flat objects includes a stack magazine. The base of the stack magazine supports the stack and includes revolving rollers that form a continuously moving series of rollers, pass underneath the stack magazine, and roll along the lowest object of the stack. A conveyor system is arranged underneath the upper run of the series of rollers and extends at an angle to the series of rollers. The lowest object that is removed from the stack by one passing roller is deposited on the conveyor system. A suction device moves or suction devices move between the rollers in the cycle in which the rollers pass underneath the magazine. The suction device or devices pulls or pull down one lateral edge of the lowest object between two rollers. The leading roller still supports the stack via the object and the trailing roller passes between the object and the object situated above so as to cause a secure separation of the lowest object from the stack.

Abstract: An adhesive application device includes an adhesive chamber for containing adhesive, an adhesive roll which dips partially into the adhesive, and an adhesive application roll or block roll for applying glue onto a workpiece guided past the block roll by a clamping device. In the absence of a workpiece, a turning axis of the block roll is swung away from the clamping device on an eccentric axis which does not coincide with the rotational axis of the adhesive roll. The turning axis of a block cylinder or the turning axis of an adhesive roll is guided so as to be movable in such a manner that the distance of the block roll from the adhesive roll remains constant.

Abstract: A doctor blade unit for the inking system of a rotary printing press includes a doctor blade carrier that is formed by a profiled rail with a channel-shaped recess. The doctor blade carrier is provided with two doctor blades that can be screwed to the carrier and moved down on an ink application roller as well as sealing elements at its ends. The face walls on the ends of the ink chamber which carry the sealing elements are provided with holes for accommodating a pipe that is provided with spaced apart holes that form spraying nozzles over its entire length. One end of the pipe is provided with a connection for supplying cleaning fluid.

Abstract: A doctor blade unit for the inking system of a rotary printing press consists of a doctor blade carrier, on which two doctor blades that can be brought into contact with an inking roller or screen roller are fastened parallel to one another in the approximate shape of a roof, with said doctor blades limiting an ink chamber in cooperation with the inking roller, the doctor blade carrier and sealing elements provided on the ends of said doctor blade carrier. Ducts for supplying and discharging ink into/out of the ink chamber and contacting units for pressing the doctor blade carrier against the inking roller are also provided. In order to ensure that both doctor blades can be pressed against the screen roller with exactly the same contact pressure, the doctor blade carrier is connected to a doctor blade unit carrier that is provided with the coupling rods of parallel pitman systems. The parallel pitmans are coupled to inking system flames or supports of the inking system flames.

Abstract: An arrangement for separating flat stacked objects is composed of a stacking hopper, the base of which supports the stack and is composed of rolls. The rolls pass through at intervals and roll against the respective bottommost workpiece. The rolls are provided in a traveling series and are driven in a rotating manner. A conveyor belt for transporting material away is arranged below the series of rolls. The respective bottommost workpiece successively peeled off the stack by each roll passage is placed onto the conveyor belt. In sync with the passage of the rolls, suction boxes grip and pull down a lateral edge of the respective bottommost workpiece between two rolls in such a way that the roll that arrives below the stack still supports the stack through the workpiece. The subsequent roll passes between the workpiece and the workpiece located above the previous workpiece and causes a reliable separation of the respective bottommost piece from the stack.

Abstract: An arrangement for scoring continuously transported flat workpieces to be folded along scored lines is composed of scoring tools fastened to shafts that are parallel to each other. One part of the scoring tools features a groove and the other part features a ridge. The groove and the ridge follow a helical path over external cylinders defined by the tools and engage with each other in the contact region of their cover lines. In order to set lengths of the scored lines, a tool part is composed of a package of tightly compact, discoid segments that carry the scoring tools. At least one part of these segments can be retained on the shaft in a manner permitting rotation, and located at different angles, in order to be able to form two scored lines with only one pair of scoring rolls. A cylindrical saucer-type segment forming a second scoring tool is retained on each shaft.

Abstract: The invention pertains to a doctor device for intaglio printing machines with a doctor blade displaceable relative to the printing cylinder, the working stroke of which is adjustable. In keeping with the invention, a motor-driven swash plate rigidly affixed to the frame actuates the doctor blade along with a displaceable doctor beam.

Abstract: A withdrawal device for a plastic tubular film is manufactured in a blowing method by an extruder. To prevent the formation of center wrinkles in the withdrawal of plastic tubular film, at least one deflection cylinder and/or angle bar has a differing diameter across its length.

Abstract: A mounting device for bearings placed on shaft extensions consists of a lower support basin rigidly connected with the frame and of a lid, connected in a pivoting manner with same, provided with a lower lever forming the operating portion which, when the lid is in the open position, extends into or across the support basin far enough to pivot the lid into its closed position by lowering the bearing abutting against it and placed on the shaft extension; in which closed position the basin rests tightly against the bearing with its circular, curved inner side. For the sake of simplification, a single lid is provided in a pivoting manner with a locking lever, which has at its end a hook portion, which engages an abutment of the support basin. Furthermore, an arrangement is provided which automatically pivots the locking lever.