Abstract: A method and a device (10) for setting up a web (1) of paper having lateral dragging holes (2) in a paper processing and/or printing apparatus. The device (10) is capable of making a reference hole (3) at the midway line (4) between two successive lateral holes (2a,2b). According to the method, when the web (1) is dragged by a paper dragger (7), reference hole (3) passes under a sensor (6) which signals the passage of it to a control unit. The control unit stores such passage and starts the linear measurement of the web from that moment, by an encoder. The control unit operates a perforating apparatus (8) which makes on the web transversal perforations (9) at the chosen distance for one another. Transversal perforations 9 are made coinciding with the midway line of two successive lateral dragging holes.

Abstract: Transversal perforating apparatus of paper for printers fed by a continuous strip of paper (1) without lateral dragging holes. The apparatus (12) comprises a perforator roller (13) holding a blade (16) substantially transversal to and engaging on a pressure roller (14) rotating in synchronism with the perforator roller (13). Means for varying the speed of the perforator roller (13) are provided for as well as means for measuring the position of the blade (16) with respect to the paper which communicate with a central processor. It is possible, therefore, to make transversal perforations coincident with the beginning and the end of each page printed by printing heads (2,3) being able to also vary the interval between two successive perforations during the course of printing.

Abstract: Apparatus for high speed stacking and cutting of resilient materials to form individual sheets wherein the resilient material is moved through the apparatus towards a stacking plane and is guided past a tear separator actuatable to effect a tear separation along a transverse prepunched line. The tear separator comprises two pairs of respectively upper and lower rollers for friction contact with the sheets. One roller of the upper rollers is provided with a planar beveled portion and the lower rollers are essentially cylindrical, and at least one of the lower rollers is driven into rotation with a speed higher than that of the upper rollers. The lower rollers are spaced from each other in a rest condition when the beveled portion is parallely positioned in front of a plane of the connected sheets in the rest condition of the upper rollers.

Abstract: Printed matter in form of single sheets or groups of sheets is converted into a sealed cover or parcel ready for mailing by glueing along all perimetral edges of the cover or parcel, in which a folding operation has been possibly previously carried out in order to form the size of a standard envelope for mailing.

Abstract: Web compensation loop device for a web of flexible laser printing paper positioned between a paper supply for supplying paper from a box containing the web in a folded condition or from a reel to a variable speed laser printer. Paper is fed to the printer and to compensate for intermittent operation of the laser printer, a support is provided for supporting and moving the web from the box or the paper roll and positioned between the paper storage and supply unit and the printer for supporting one end of the web, the other end of the web being supported by the printer as the paper moves towards the printer while supporting the web therebetween. The web forms a compensation loop between the printer and the web support as the paper forming the web leaves the support and enters the printer. A roller moves the web from the support to the printer and a variable speed motor, responsive to the intermittent operation of the printer and the web compensation loop drives the web moving roller.

Abstract: Transversal perforating apparatus of paper for printers fed by a continuous strip of paper (1) without lateral dragging holes. The apparatus (12) includes a perforator roller (13) holding a blade (16) substantially transverse to and engaging a pressure roller (14) rotating in synchronism with the perforator roller (13). The speed of the perforator roller (13) is varied and the position of the blade (16) is measured with respect to the paper. Encoders communicate with a central processor. Transverse perforations are made coincident with the beginning and the end of each page printed by printing heads (2,3). Intervals between two successive perforations can be varied during the course of printing.

Abstract: Improved apparatus for rotary printing of a strip of paper (1) or similar material, comprising a printing roller (2) provided with a cliche (3) brought into contact with a back pressure roller (4) and a screened roller (5) to quickly interrupt and resume the printing of the paper (1), said means comprising a support (20) to which the printing roller (2) is rotatingly connected and which is, in turn, rotatingly connected to a fixed pivot (21) eccentric with respect to the printing roller (2) and around which rotation occurs by means of an actuator (22). Washing means (15) are also provided for the cliche (3) and a mobile support (30) of the ink roller (6) which allows it to be distanced from the screened roller (5) so as to create a space (8) which promotes the formation of a film of ink on the screened roller (5) itself suitable to keep it damp and prevent drying. (FIG.

Abstract: A device for unwinding and discharging paper reels, having endless conveyor belts rotatably mounted on a pair of oppositely disposed rollers for unwinding a paper reel and having a concave portion between the oppositely disposed rollers for receiving the paper reel, the paper reel being supported above the endless conveyor belts for frictional engagement of the reel with the endless conveyor belts for movement of an end of the paper from the reel in a direction of movement of the endless conveyor belts, and a stopping member positioned on the endless conveyor belts between the oppositely disposed rollers downstream of the paper reel, the stopping member being positioned on the endless conveyor belts prior to a substitution of another paper reel for the paper reel already on the endless conveyor belts, and the stopping member comprises a wedge-shaped member having an upper inclined surface substantially in conformity with the outer surface of the paper reel and a lower surface in conformity with an upper surfa

Abstract: A device for aligning a continuous paper sheet strip stored in a stacker (10), to form a package (14), which includes a first lateral locator (20) transversally fixed and vertically movable and a second lateral locator (50) movable both laterally and vertically; the locators (20, 50) include telescopically-shaped rods, the external rod (52, 62) thereof being cylindrical in shape. In order to move the second locator (50), a motor, a pair of rods and a worm screw are provided which is located in a region over the collector (10) and do not protrude laterally with respect thereto.

Abstract: A sheet stopping system for a folding machine for the folding of a sheet in the form of a continuous band in a zig-zag like manner, in which the folding machine comprises a supporting plane (18) onto which means associated with the sheet in the form of the continuous band is fed to have it impinge alternately against hinderances (24, 26) limiting one of the two opposite sides of the supporting plane (18). The sheet supporting system includes the supporting plane and pairs of vertically slidable fingers (38a, 38b) projecting downwardly from the hinderance for engaging the supporting plane (18) to prevent the introduction of a sheet starting portion between the hinderance and the supporting plane (18).

Abstract: Device for uncoiling a paper strip (C) from a coil (10), comprising a support (24) for coil (10) for driving paper uncoil therefrom which comprises, downstream of the support (24), belts and roller (24, 26) for receiving and supporting the coil (10a) about to be exhausted, allowing the rotation thereof in order not to interrupt the paper strip (C) uncoiling therefrom, and provided with a sensor (28) actuated by the presence of coil (10a) and a photodetector (34) for detecting paper presence on the coil (10a) for controlling the stopping of the device when the coil (10a) is substantially exhausted.

Abstract: Splicing apparatus for a laser printer and to assist in carrying out an operating method for a service apparatus for laser printers having a pair of conveying belts with upper surfaces parallel, co-planar and displaceable in the same direction and having a stationary splicing area provided between the conveyor belts with fixed and movable anchors for the temporary anchoring of two sheets to be spliced, and an adhesive tape supported for unwinding by two V-shaped gorges having an apex flush and aligned with the splicing line, and a motor coupled with a frame for the translation thereof between a first position in which it forms the upper cover for an exit from the service apparatus of the laser printer and a second position in which it is displaced towards one end in a cantilevered manner, so as to uncover and give access to the exit of the service apparatus.

Abstract: Compensation loop device between a web feed system and the input of the web in a paper using machine such as a high speed printer, for example, a laser printer, including a frame provided with sliding feeding rollers, the latter roller being driven by an electrical motor that accelerates or decelerates the web coming into the machine according to the length of a loop.

Abstract: Apparatus for the high speed stacking of paper sheets of either a continuous web of an accordion-like folding formation of a continuous web or superimposed separated sheets. A drive brings the paper sheets to a tearing mechanism for tearing the sheets along a prepierced line. Properly spaced portions of either the continuous web or the leading edge of every sheet is diverted to a first or a second stop which can also include a folding station arranged on both opposed sides of a sheet stacking plane. The diverter includes, on each side of the sheets to be stacked, a plurality of compressed air blowing nozzles, connected with a compressed air source so that the continuous web portion or the leading edge of the individual sheets are directed to the predetermined stopping station, and folding station, if necessary.

Abstract: A method for zig-zag folding a web of sheet material includes feeding the web with a pair of rollers against an obstacle to form a loop. The loop is engaged by a roller having a higher peripheral speed than the pair and engaged against another obstacle to form a fold line from the first loop and to form a second loop. Another roller having a higher peripheral speed than the pair forms the second loop into a fold line, and the steps are repeated to form a zig-zag folded stack.

Abstract: Automatic service apparatus for fast printers (10) including a store (12) containing reams of papers to be printed, a mechanical arm (16), equipped with pliers (24), movable among a plurality of boxes (14) for drawing reams from the store (12), unpacking and aligning sheets from the ream, depositing one of the reams into a sheet feeding seat of a printer (10), drawing groups of sheets from the output of the printer (10) and transferring the groups to an after-treatment station (60). The pliers can be provided with a static device for aligning the reams.

Abstract: Teleprinting system, at a telephone user, comprising an apparatus containing a microprocessor corrected to a telephone line through a modem unit providing to distinguish data transmission messages from standard telephone messages using differences in the ring signal to send the received data to a printer, to a display, or through an interface circuit to an outer computer, and receiving messages from an optical reader or from a keyboard for their transmission through the modem unit to the corresponding apparatus of an agency or individual connected in order to embody the interaction, and is particularly applicable to telebilling or teleinvoicing methods from service agencies to an end user.

Abstract: A teleprinting method for periodically transmitting billing data to a meter user for measuring service and to allow the user to control and pay the bill to a supplier or the service, in which data about a service from a user meter is transmitted to a central processor at a supplier location and data is processed, and wherein a corresponding service rate is taken into consideration, with the service data being assembled together with a service rate and service charge with all other data related to the user and stored in the memory of the central processor is periodically assembled and transmitted from the central processor and then sent to a printer at the user location for printing the data stored in the remote processor on a blank bill form available to the user at the supplier location, and the blank bill is printed to produce a bill form to allow the user to control the billed data and carry out payment for the service received.

Abstract: An unwinding device comprises a number of elastic belts forming a loop within which the paper reel abuts. The translating motion of the belts causes the unwinding of the paper reel by friction.

Abstract: Machine for high speed folding in an accordion-like manner of bands of elastic materials such as paper, thin plastic laminates or metal sheets coming from coils onto which are stored in a rolled up form, comprising an orientable guide (104) launching the band (102) against an obstacle (24, 26) so as to cause a length of the band to be bent into an arc-shaped manner, thus forming a loop (150), towards a first roller (20) having circumferential grooves (40) and areas (136, 138, 140) having high friction coefficient with respect to the material of the band to be folded, the roller (20) being rotated at a speed such that its peripheral speed is greater than the advancing rate of the band (102), whereby the loop (150) formed by the band is drawn by the roller (20) up to impinge against releaves (32) engaged within the circumferential grooves (40), causing the band (102) to be pinched, thus forming a sharp fold and then to start again the arc-shaped folding in the opposite direction until it comes into contact with