Abstract: A delivery device for stacking cut flat articles such as rotary cross cut sheets has a braking table downstream of a sheet feeder which is provided with two counterrotating disks which are perforated and communicate with suction passages on the table beneath the disks to brake the sheets as they are supplied to a stacker. At the edge of this table, there is a broad slit nozzle directing a sheet of air upwardly onto the underside of the sheets which are delivered to the stacker.

Abstract: A conveying arrangement for sheet quires includes successively arranged conveying devices of which a downstream conveying device as seen in a conveying direction has a lower speed than an upstream conveying device and at least one ionization device for electrostatic charging of the sheet quires. The downstream conveying device includes a suction device for administering suction air to the sheet quires at stationary suction openings.

Abstract: A delivery includes sheet brakes and sheet supports constructed of modules including respectively identical carrier modules and braking modules with operationally revolving braking elements, the braking modules being selectively connectable to the carrier modules, and support modules selectively connectable to the carrier modules.

Abstract: An apparatus for forming stacks of flat objects 12, in particular printed products, comprises a compartment 10 which is mounted for selective rotation about a vertical axis and whose compartment space 10′ is bounded on two mutually opposite sides by bounding elements 68, 72. In the ejection direction A, the compartment is bounded by upstream guide elements 66 and downstream guide elements 70. The flat objects 12 are fed to the compartment 10 from above and come to lie in a stack formed on the compartment base 28. The upstream guide elements 66 and downstream guide elements 70 can be moved independently of one another in order, firstly, to permit the ejection of the stack formed and, secondly, to permit the stacked objects 12 to be held firmly during the rotation of the compartment 10.

Abstract: A sheet-fed printing press comprises a running transport chain, gripper devices supported by the transport chain and each having a gripper and a gripper pad for gripping a sheet, an inspection device for inspecting the sheet gripped and transported by the gripper devices, and a suction table having a guide surface for guiding the sheet at a position of inspection, and suction holes for spreading the sheet along the guide surface. Suction taper plates each having an inclined surface, which gradually decreases the distance between the gripper pads and the guide surface from an upstream side toward a downstream side of the guide surface in the sheet transport direction, are provided on the downstream side of the guide surface at predetermined intervals in the sheet width direction. Grooves, through which the grippers pass, are interposed among the suction taper plates.

Abstract: An object arresting device prevents rebounding effects when an object is decelerated from a high velocity by causing an impact-induced flow of fluid such as ambient air through a lattice membrane to develop vacuum effects and vortex activity while absorbing and dissipating energy to prevent damage to the object and preventing collisions between objects in a high-speed, high-capacity sorting/transport system. The lattice membrane is preferably formed as a woven fabric of a smooth polymer or synthetic fiber of preferably circular cross-section which causes laminar flow over the fibers and rotational vortex effects in the corners of each aperture which produce a combination of vacuum effects in a direction to oppose rebound motion and energy dissipation effects. The effects produced are proportional to the impact energy and the device is thus adaptive to a wide range of mass and energy limited only by the forces the device can mechanically withstand.

Abstract: A sheet-braking system and method of operation for a delivery of a sheet-processing machine, includes a braking belt revolving during operation and undergoing periodic decelerating and accelerating phases. The braking belt further includes a braking strand passable over a suction region providing a suction effect passing through the braking strand. The suction region is overlapped throughout the duration of a respective decelerating phase, by a respective sheet deposited on the braking strand.

Abstract: A delivery for a sheet-processing machine includes a sheet brake for braking processed sheets from a processing speed to an output speed, a sheet conveyor for transporting the processed sheets in a conveying direction at the processing speed and for transferring the processed sheets to the sheet brake, and a body defining a gap which, during operation, is connected to a vacuum generator and over which the sheets are pullable by the sheet conveyor for smoothing the sheets before they are transferred to the sheet brake, the gap being formed at the sheet brake; and a sheet-processing machine, more particularly, a printing machine, including the delivery.

Abstract: A smoothing device includes guide surface sections for a flat printing material whose leading edge is pulled in a direction of travel over the guide surface sections. The guide surface sections have openings which communicate with throttling ducts that are pressurized with compressed air during operation. The guide surface sections form a smoothing notch and have air passage openings which communicate with a flow duct. The air passage openings are configured to cause pressure conditions when there is an air throughflow during operation such that the flat printing material forms a bead projecting into the smoothing notch.

Abstract: A delivery for a machine processing flat printing materials includes a suction belt conveyer having conveying runs forming a support surface. To remove rejects or proof sheets as required, the delivery transports the materials along a transport path over a stack that is otherwise built up and transfers the sheets to the support surface. The physical position of the support surface can be varied while maintaining its generatrix. Therefore, the support surface can be adjusted in each print job to a working position in which secured transfer of removed printing materials to the suction belt conveyer is ensured. In a particular configuration, a latching device is provided that permits the conveying runs to escape from their working position in the event of a jam. Preferably, the latching device has a latching pin and a latching recess.

Abstract: A delivery for a machine for processing flat printing materials, includes a sheet guide surface with suction openings opening into the sheet guide surface, a suction chamber communicating with the suction openings, and a sheet conveyor for gripping a respective sheet at an edge thereof extending in a sheet-conveying direction and for dragging the respective sheet over the sheet guide surface, the suction chamber being formed as a throttling duct; a machine for processing flat printing materials including the delivery; and a sheet-processing printing machine including the delivery.

Abstract: A delivery for a printing machine that processes sheets passing through the latter in a processing direction, includes sheet brakes adjustable transversely to the processing direction and a respective braking element having a vacuum passing therethrough, the braking element being cooperatable with the sheet and revolving during the operation thereof, and a supporting element through which vacuum does not pass, the respective braking element being replaceable by the supporting element for converting one of the sheet brakes to a respective sheet support adjustable transversely to the processing direction; and a printing machine having such a delivery.

Abstract: A printer has a media transport with a rigid, air-transmissive platen. A movable air-transmissive flexible web overlays the platen. A suction device communicates with the platen to draw air through the web and through the platen such that a sheet of media carried on the web is biased toward the platen. A valve sheet overlays or underlies the platen, and includes a plurality of shut-off elements, each movable in response to temperature changes between a closed position in which the element contacts a portion of the platen to prevent air flow through that portion of the platen, and an open position, in which the element is spaced apart from the platen to admit air to the platen portion. The shut off elements may include resistive heaters and bimetallic strips, so that application of electricity generates heat to flex the strip to an open position.

Abstract: A media outputting device for a hardcopy apparatus includes a media source and at least one roller having an outer surface with a contact region for engaging media, where the roller is rotatable for outputting the media. The media outputting device also includes a negative pressure mechanism for creating a negative pressure distribution on the contact region where at least one portion of the contact region that is farther from the media source has a greater negative pressure than at least one portion of the contact region that is closer to the media source.

Abstract: The delivery for a sheet-processing machine, such as a sheet-fed rotary printing press, has several braking devices which are movable transverse to a sheet transport direction. The delivery also has a sheet guiding elements that respectively cover the interspaces between adjacent braking devices at a level of the top edges. The sheet guiding devices are formed from a flexible tape material. The length of the tape transverse to the direction of sheet transport and seen from above is adjustable to the spacing between the adjacent braking devices.

Abstract: A hardcopy apparatus includes a media drive roller and an independent media holddown unit. Such holddown unit includes a platen, on which a print zone is defined, and a vacuum source for generating a negative pressure for holding at least a portion of a medium substantially flat on the print zone. The platen is extending towards, and partially overlapping, the drive roller. In addition, a method for holding a medium to be printed on substantially flat over a print zone of a hardcopy apparatus includes indexing the medium over the print zone, generating a negative pressure capable of holding a portion of the medium flat on the print zone, extending the negative pressure generated to the print zone, to achieve a substantially uniform holding force over the print zone.

Abstract: A method separates out individual sheets from a sheet-processing machine, by a revolving gripper chain bearing grippers for gripping the sheets one after another at a leading edge thereof and conveying them with a given mutual travel spacing and a given conveying speed to a stacking region for deposition. A separating device is disposed beyond the stacking region. The separating device has a controllable revolving suction belt for conveying individual sheets. The suction belt is accelerated to the conveying speed and the individual sheets are conveyed to the separating device. The individual sheets are picked up with the suction belt, and the grippers are opened. The suction belt is briefly decelerated so as to withdraw the respective sheet from the grippers. The suction belt is accelerated again to at least the conveying speed. The suction belt is subsequently decelerated to a given output speed.

Abstract: An apparatus and method to decelerate printed product in a stacking process is provided. The printed product may be a product such as printed paper, foil, or plastic. A continuous web of product may be cut into single items, one item at a time, and then the items may be stacked on top of one another. The apparatus may be comprised of a cylinder, which is comprised of a vacuum chamber having perforations and a blowing chamber having perforations. A first slow delivery tape, and first and second fast delivery tapes may also be provided. Each of the delivery tapes may have perforations to allow air to pass through and from or to the cylinder. The first slow delivery tape is wrapped around the cylinder. The first and second fast delivery tapes are wrapped around rollers and may help to create separation between individual cut items and may control moving items. The first slow delivery tape may slow down items to allow stacking of items.

Abstract: A vacuum drum assembly for a printing machine has a drum with an array of passageways distributed along its length and around its periphery to permit airflow from outside the drum to inside the drum in response to reduced air pressure inside the drum. An array of valves are movable between a closed position in which that valve restricts at least one of the passageways and an open position in which the restriction of the same passageways is reduced. When a partial area of the drum is wrapped with a sheet of material, at least some of the passageway valves adjacent the edges of that area are open, and the valves for the passageways not covered by the sheet and not adjacent the edges of that area are closed. The drum open area is regulated to be small in regions where there is no paper. Accordingly, the open area of the drum is adapted to the paper shape and size and the paper position on the drum, while minimizing the required suction flow.

Abstract: A vacuum holddown has a holddown member with an outer surface for temporarily capturing a flexible sheet material via a vacuum force distributed across the outer surface through discrete vacuum channels. A vacuum force valving mechanism abuts an inner surface of the holddown member in a selectable sliding engagement. The valving mechanism has a pattern of apertures therethrough in predetermined pattern such that discrete valve mechanism positions produce discrete vacuum force patterns at the outer surface of the holddown member.

Abstract: A vacuum holddown has a holddown member with an outer surface for temporarily capturing a flexible sheet material via a vacuum force distributed across the outer surface through discrete vacuum channels. A vacuum force valving mechanism abuts an inner surface of the holddown member in a selectable sliding engagement. The valving mechanism has a pattern of apertures therethrough in predetermined pattern such that discrete valve mechanism positions produce discrete vacuum force patterns at the outer surface of the holddown member.

Abstract: A vacuum holddown has a holddown member with an outer surface for temporarily capturing a flexible sheet material via a vacuum force distributed across the outer surface through discrete vacuum channels. A vacuum force valving mechanism abuts an inner surface of the holddown member in a selectable sliding engagement. The valving mechanism has a pattern of apertures therethrough in predetermined pattern such that discrete valve mechanism positions produce discrete vacuum force patterns at the outer surface of the holddown member.

Abstract: A file of successive sheets is delivered to a converting station by a faster first conveyor, and a stream of partially overlapping sheets is removed by a slower second conveyor. Partial overlapping between the leading sections of successive sheets in the file and the trailing sections of the respective preceding sheets in the stream is due to the difference between the speeds of the two conveyors. A deflector assembly at the converting station ensures that the leading sections of successive sheets of the file can predictably overlap with the trailing sections of the immediately preceding sections of the stream by causing the trailing sections to move out of the way of oncoming leading sections and/or vice versa.

Abstract: A delivery includes sheet brakes and sheet supports constructed of modules including respectively identical carrier modules and braking modules with operationally revolving braking elements, the braking modules being selectively connectable to the carrier modules, and support modules selectively connectable to the carrier modules.

Abstract: A delivery for a sheet-processing machine includes a sheet brake for braking processed sheets from a processing speed to an output speed, a sheet conveyor for transporting the processed sheets in a conveying direction at the processing speed and for transferring the processed sheets to the sheet brake, and a body defining a gap which, during operation, is connected to a vacuum generator and over which the sheets are pullable by the sheet conveyor for smoothing the sheets before they are transferred to the sheet brake, the gap being formed at the sheet brake; and a sheet-processing machine, more particularly, a printing machine, including the delivery.

Abstract: A delivery for a sheet processing printing machine having a delivery housing and a sheet conveyor substantially enclosed by the delivery housing, the delivery housing being formed with an opening at the underside thereof through which, operationally, sheets leave the delivery housing for forming a sheet pile, and a suction line connected to the interior of the delivery housing, the suction line having a negative pressure prevailing operationally therein, includes motor-driven fluid flow machines for acquiring air flows leaving the delivery housing through the opening and for generating air flows returning into the delivery housing.

Abstract: A vacuum holddown for sheet materials has a surface having a field of vacuum ports in which each individual port is gated. When a vacuum is applied to the underside of the holddown, the gates close. When a sheet of material is introduced onto a region of the field, the gates only within vacuum manifold passageway covered by the material are configured to spring open, applying a suction force to the sheet via the now opened ports. The holddown thus automatically adjusts to material size. An implementation for use in an ink-jet printer with cut-sheet print media is demonstrated.

Abstract: A suction unit in a sheet-fed rotary printing press includes a plurality of suction wheels, a plurality of supports, a drive shaft, a motor, a shaft, a coupling, a bearing, a sleeve, and a gear, and a knob and a screw. The suction wheels are provided below a sheet convey path to draw a sheet-like printing product in a slidable contact by suction. The supports support the suction wheels to be movable in a sheet convey direction. The drive shaft, motor, shaft, coupling, bearing, sleeve, and gear drive the suction wheels in the sheet convey direction. The knob and screw detachably fix the suction wheels to the supports. The suction wheels are connected to/disconnected from the drive shaft, motor, shaft, coupling, bearing, sleeve, and gear when the suction wheels are fixed to/released from the supports by the knob and screw.

Abstract: A curl correcting unit in which plural curl correcting sections are sequentially arranged in a sheet transporting direction enhances curl correction in a direction to lower edge portions of a sheet. The curl correcting unit which performs curl correction on a sheet on which an image is formed by an image forming apparatus, has a first curl correcting device for applying pressure to the sheet and performing curl correction in a direction to raise the edge portions of the sheet, and a second curl correcting device for applying pressure to the sheet and performing curl correction in a direction to lower the edge portions of the sheet, the second curl correcting device being positioned downstream of a sheet transporting path with respect to the first curl correcting device, the pressure of the second curl correcting device being applied to the sheet at all times during at least transportation of the sheet.

Abstract: A sheet-like material guiding device of an offset printing press comprises a chain for holding and transporting a printed sheet; a product pile device for piling the printed sheet released from the chain; a suction device for reducing the speed of the printed sheet transported by the chain, the suction device being supported movably in the direction of transport of the printed sheet; and a belt disposed below the chain for guiding the printed sheet at nearly the same speed as the speed of transport of the printed sheet by the chain, the belt being movable so as to follow the movement of the suction device, the sheet-like material guiding device including a pair of driven rollers for supporting the belt, and a chain for supporting the driven rollers movably, with the distance between the driven rollers being unchanged. The belt can satisfactorily follow during movement of the suction device to achieve smooth transport, and a drive source for the suction device can be made small in capacity.

Abstract: A vacuum holddown has a holddown member with an outer surface for temporarily capturing a flexible sheet material via a vacuum force distributed across the outer surface through discrete vacuum channels. A vacuum force valve mechanism abuts an inner surface of the holddown member in a selectable sliding engagement. The valve mechanism has a pattern of apertures therethrough in predetermined pattern such that discrete valve mechanism positions produce discrete vacuum force patterns at the outer surface of the holddown member.

Abstract: In a large-format crosscutter (11) is proposed an apparatus for forming a gap in a scale-like or regulated sheet flow. Following onto an overlapping station (13) is provided a gap formation station (19), which has a conveyor (31) which can be accelerated to a higher speed than the feed conveyor (18). For gap formation purposes a gap formation carriage (22) runs along a guide (23) in the conveying direction (15), shortens the gap formation conveyor (31) and lengthens the feed conveyor (18). A suction device (41) on the gap formation carriage is lowered somewhat and by means of a blowing device (42) air is blown into the resulting clearance. Therefore the gap formation carriage precedes the slower feed conveyor (18) and forms the necessary gap, so that in the latter can be operated a switch or points (46) for switching to a different one of the two conveying paths (47, 48).

Abstract: A sheet-guiding suction box can be adapted to the size or format of a plurality of sizes of sheets to be guided. This is accomplished by structuring the guide box with a plurality of independently acting suction chambers. A central suction area of the guide surface of the suction box is smaller in size than the smallest format of a sheet to be guided.

Abstract: A device for unrolling sheets, with positively guided leading edges, travelling along a conveying path of a delivery of a printing machine for processing the sheets, the sheet unrolling device being formed with a first unrolling groove followed upline in the conveying direction by at least one second unrolling groove, and having a negative-pressure generator for subjecting a respective unrolling groove to negative pressure, includes a delaying device for delaying a negative-pressure increase in the second unrolling groove relative to a negative-pressure increase in the first unrolling groove; and a delivery of a printing machine combined with the sheet-unrolling device.

Abstract: A device for depositing paper sheets, in particular on a sheet pile or stack in a delivery of a printing machine, includes a revolving belt, a drive motor for driving the revolving belt separately from any other drive system, and at least one suction device having a discretely effective suction action, the suction device being disposed on the revolving belt, the revolving belt being constructed as a toothed belt for transmitting torque and synchronicity between the drive motor and the suction device; and a method of operating the depositing device.

Abstract: An operator separates pressure rollers 14, 16 from the corresponding drive rollers 12 for a predetermined distance prior to his drawing work on the paper and allows the paper 18 to be inserted between the drive rollers 12 and the pressure rollers 14, 16 from the front of the platen 2. An optical sensor 28 detects the paper 18. A controller drives a fan after a lapse of a predetermined time to operate a vacuum power in a vacuum chamber 4. Thereafter, the paper 18 on the platen 2 continues to be held on the platen 2 by the vacuum power. In this condition, the operator sets the paper to a mark 20 drawn on the platen 2 which indicates a set position of the paper to adjust the position of the paper 18. When the operator completes the positioning of the paper 18, he manipulates the lever to lift down the pressure rollers.

Abstract: A device for the transport and deposit of sheets in a stacking region is provided. The device includes pneumatic guiding elements below the conveying path and extending across the entire width. A chain-conveyor system and a pneumatic conveyor system following the chain-conveyor system are provided. The devices also provides for selectable paths to plural delivery positions.

Abstract: A device for raising an edge of a topmost sheet from a pile of sheets comprises two cursors slidably coupled to a mobile head. On one end of each cursor two needles are fixed, which needles pierce into said edge. The device is especially useful in the manufacturing process of phenolic-melaminic decorative plastic laminates and preformable or postformable treated panels for raising sheets of paper which have been impregnated with resin and piled one on another.

Abstract: The device for removing flat articles from a stack comprises at least one roller which contacts the uppermost article of a stack and is rotatable about a shaft and whose circumferential surface is covered by a layer consisting of a resilient material. The resilient layer positioned on the circumferential surface of the roller includes a number of suction cups. The roller is designed as a hollow roller which includes a mechanical device by which the suction cups in the resilient layer on the circumferential surface of the roller can be operated by partial deformation of said resilient layer. The suction cups are formed by depressions in the resilient layer on the circumferential surface of the roller, said depressions cooperating with one bore each in the wall of the roller.

Abstract: The present invention relates to a sheet handling apparatus having a hopper drum (1) for receiving individual signatures (23) from a feed tray, the hopper drum being equipped with at least one set of signature seizing grippers (16). A hopper drum surface element (13) revolves counter to a direction of rotation (7) of the hopper drum (1) upon reversal of direction (33) of the signatures (23). A seizing element (26) is assigned to the direction reversal position (38) of the signatures (23).

Abstract: A slow-down apparatus is disclosed using a suction box by itself to slow a sheet of paper in a paper transport apparatus, and to remove the trailing edge of a sheet from the path of the leading edge of an oncoming or following sheet to prevent lead edge damage. A set of high-speed conveyors deliver a sheet above shingled predecessor sheets being drawn by a slowdown conveyor. The shingled sheets "shutter" a suction box beneath them from affecting the delivered high-speed sheet. As the shingled sheets uncover the suction box, the high-speed delivered sheet is affected and drawn to the low-speed conveyor.

Abstract: For each displaceable closing member (19) for controlling and scaling sheet layers (2, 2'), the pneumatic control (17) has in a control surface (26) two control openings (23), between which is formed an additional sliding surface (40) for the graphite closing member (19). Individual closing members (20) are used for the constant position fixing of the control (17) and, facing the openings (23, 24), the closing members (19, 20) slide on a sieve (19), so that limited fault susceptibility occurs at high working speeds.

Abstract: A conveyor system wherein individual sheets are conveyed from a cutter at a given speed, are increased in speed before passing through a vacuum conveyor shingling section, are slowed down at the shingling section, and then normally proceed at a slowed down speed to the stacker which is adapted to stack a fixed number of sheets before discharging a stack. The sheets are basically handled in accordance with the device disclosed in U.S. Pat. No. 4,200,276. The vacuum shingler of the invention includes a slow-down device, such as a smoothing wheel or spring fingers, positioned above the vacuum conveyor section to nip the leading edge of the individual sheets before they contact the vacuum conveyor. The slow-down device acts to reduce the tendency of lightweight paperboard sheets to fold transversely or buckle across their width.

Abstract: Method of introducing an auxiliary sheet pile carrier above a main sheet pile to be removed, the introduction being effected during uninterrupted feeding of additional sheets above the main sheet pile in a sheet travel direction and in synchronism with the travel of a sheet to be deposited, includes controlling respective drives at a sheet delivery by a control device which determines actual data of a printing press, so that the auxiliary pile carrier traverses a velocity profile identical with a velocity profile of the sheet to be deposited in order to avoid relative movement between the auxiliary pile carrier and the sheet to be deposited.

Abstract: Method for guiding a sheet in vicinity of a sheet slow-down device of a sheet-processing machine. The sheet is gripped at a leading edge thereof with of a gripper system and the sheet is transported in a sheet-transport direction along a sheet travel path. The sheet has a defined region with which the sheet comes into contact with a sheet slow-down device for subsequently forming a sheet pile, and directing the sheet, in the vicinity of the sheet slow-down device, into a range of influence of a flotation guide produced along a guiding surface member by an air flow. The flotation guide, without taking into account the influence of the sheet slow-down device, is effective for bringing the sheet to a normal flotation level located above the guiding surface member. The sheet is supplied to the sheet slow-down device at a height level above the normal flotation level in order to form sheet-stabilizing vacuum forces resulting from the air flow. There is also disclosed a device for performing the method.

Abstract: A veneer hoisting apparatus in which even a top veneer of piled veneers is inclined, a piercing unit is adapted to the inclination to pierce and hoist the veneer by piercing members. The veneer hoisting apparatus comprises: a piercing unit with a sharp piercing member; an elevating member for vertically moving the piercing unit fixed thereto; a device for supporting the elevating member, the supporting device having an angle adjusting mechanism for adjusting an angle between the piercing unit and the top veneer when the piercing member contacts the top veneer; and a controller for controlling motion of the elevating member.

Abstract: A veneer hoisting apparatus in which at the hoisting of a veneer by a piercing body, the decrease in sustaining force applied to the veneer by the piercing body is prevented, and it rarely happens that the veneer drops down from the piercing body. With the construction of the piercing body 7 and a sustaining member 9, when the veneer is hoisted through the piercing body 7, although the central portion side of the veneer 5 in the direction of its fiber is hung down about the root of the piercing body 7 which pierces the veneer as a fulcrum, and the end side thereof is curved upward, no fulcrum occurs at a position apart from the root of the piercing body in the direction of the fiber of the veneer.

Abstract: A segment pickup apparatus for handling material segments. The apparatus includes a frame and at least one pair of picker assemblies coupled to the frame. Each of the picker assemblies includes a linear array of carding elements, and each of the carding elements is resiliently coupled to one of the picker assemblies and is positionable relative to the frame in a resting position and in a picking position. Each of the carding elements includes a base portion and a linear array of substantially parallel, elongated, resilient needle-like elements extending from the base portion to a distal tip. When a carding elements is positioned in the resting position, the distal tips of that carding element lie above a picking plane, and when a carding elements is positioned in the picking position, the distal tips of that carding element lie substantially in the picking plane.

Abstract: A downstacker for paperboard sheets includes a sheet speed reducing shingler positioned in the stacking station and forming a shingling nip with the top sheet of the continuously descending stack. The shingling nip is positioned to engage and nip the next following sheet simultaneously with engagement of the stacking station backstop by the preceding sheet, thereby obviating sheet marking by an overrunning nip roll. A false backstop is periodically interposed to define a stack separation level and create an offset in the stack which engages the end of a separating fork as the continuously forming stack descends to facilitate insertion of the fork supporting into the stack. The fork provides interim support for the upper stack portion which continues to form while the lower stack portion is rapidly discharged.

Abstract: Sheets or sets of sheets are turned very rapidly and reliably, especially after the cutting of endless stationery, conveyed further in a different transport direction and separated in that the leading edge of each sheet is taken to a diagonal bending slot (33) via which a corner of each sheet first reaches an output slot (49).