| Patent Number |
Title Of Patent |
Date Issued |
| 6211968 |
Method of regulating a web tension |
April 3, 2001 |
| A process for adjusting a web tension in a web-fed rotary printing machine addresses the problems of processing variables which are not precisely quatifiable, while minimizing the influence of the press operator. This is achieved by adjusting the web tension using rules of fuzzy logic. |
| 6192140 |
Process and device for the qualitative assessment of processed sheets |
February 20, 2001 |
| The quality of processed or printed sheets is assessed while the sheets are supported on the periphery of a drum. The surface of each drum is provided with sheet leading and trailing end gripper systems which are circumferentially, and axially shiftable with respect to each other. Each |
| 6139009 |
Device and process for delivering imbricated products |
October 31, 2000 |
| A device and a method for depositing products or signatures on a conveying belt utilizes both a fixed stripper and a rotating stripper, in conjunction with a delivery paddle wheel. The cooperation of the fixed and rotating strippers deposits the signatures or folded products onto the |
| 6131496 |
Sheet processing machine with a chain conveyor |
October 17, 2000 |
| A sheet processing machine utilizes chain conveyors, each of which are provided with a plurality of chain gripper devices, to convey sheets. As each sheet is conveyed, it is cut by a transverse cutting device and is inspected. Each cut and inspected sheet may then be separated into sever |
| 6129352 |
Device for distributing a flow of signatures |
October 10, 2000 |
| In a device comprised of two rotating cam rollers that are spaced apart from each other by a nip, which device is for distributing a flow of signatures, first and second conveyor belts are disposed so that they can be moved cyclically back and forth onto the guide face of a guide tab |
| 6128988 |
Apparatus for moving point needles |
October 10, 2000 |
| Point needles in a conveying cylinder of a rotary press are caused to follow a curve course which securely fastens a web to the cylinder while eliminating transport damage to the printed products as well as reducing paper waste. The needle tips of the point needles are moved along their |
| 6125728 |
Apparatus for moving point needles |
October 3, 2000 |
| Point needles in a collecting cylinder are driven in a two stage extension process to initially needle or pierce the leading edge of a product web being cut. Once the cut has been made, the needle tips are moved further radially outwardly from the cylinder to secure the cut edge. As the |
| 6070534 |
Conveying system |
June 6, 2000 |
| A conveying system for transporting loads utilizes a transport cart that is supported by rollers. The transport cart is supported by the rollers adjacent several serially arranged revolving drives that each have a plurality of spaced recesses. At least one pusher is carried by the cart |
| 6067908 |
Method and device for keeping clean ends of spray damping mechanism nozzles on rotary printing p |
May 30, 2000 |
| Deposits are removed from the end of a spray dampening nozzle which is used to spray pressurized fluid that is delivered to the nozzle end. This fluid is activated by ultrasound before it exits the nozzle end. The activation of the fluid can be accomplished upstream of, or at the nozzle |
| 6062136 |
Sheet-fed offset rotary press |
May 16, 2000 |
| A sheet-fed rotary offset printing machine accomplishes multi-color printing. A central impression cylinder carries sheets to be printed as they pass by at least two serially located blanket cylinders. These blanket cylinders are provided with ink images from cooperating plate cylinders. |
| 6053684 |
Folded product |
April 25, 2000 |
| A method and a device for the production of folded products utilizes a row of folding jaws and a row of counter folding jaws. A signature to be cross-folded is inserted between the jaws by a folding blade. The folding jaws and counter folding jaws form a line of embossing on the folded |
| 6050188 |
Sheet-fed rotary press |
April 18, 2000 |
| A sheet-fed rotary offset printing machine accomplishes multi-color printing. A central impression cylinder carries sheets to be printed as they pass by at least two serially located blanket cylinders. These blanket cylinders are provided with ink images from cooperating plate cylind |
| 6007017 |
Method for detecting the position of a web supply roll and for positioning the roll |
December 28, 1999 |
| In a method for detecting the position of a web supply roll, the actual lateral positions of the two lateral faces of the web roll are detected and are compared with reference values. The differences between the actual and the reference values are used to shift the web supply roll latera |
| 5983764 |
Cutting device |
November 16, 1999 |
| A cutting device for transversely cutting a traveling web into signatures is usable to cut signatures into equal or unequal lengths and to accomplish proper register of the cuts. This is accomplished by supporting at least one cutter blade in a cutting cylinder so that the blade can be |
| 5975525 |
Paddle wheel for laying out folded products |
November 2, 1999 |
| A paddle wheel is used to deliver folded products to a conveyor belt in a shingled fashion. The paddle wheel has a plurality of pockets which are formed by circumferentially spaced curved paddles. The thickness or width of each product receiving product is adjustable by providing a guide |
| 5967456 |
Turning rod |
October 19, 1999 |
| A turning rod is used to change the direction of travel of a paper web. A guide tube is supported between spaced holders and is provided with air outlets in one side. The guide tube is rotatable about its longitudinal axis through generally 180.degree.. At least one of the guide tube hol |
| 5964154 |
Folding device |
October 12, 1999 |
| A device for accurately setting a roller gap of a folding device of a rotary web-fed press uses a rotatable threaded spindle with contrarotating threads at both of its ends. A drivable differential screw gear mechanism is associated with each threaded spindle end and operates to pivot |
| 5957004 |
Cam disk and method for producing a cam disk |
September 28, 1999 |
| A cam disk of a cam drive has a working surface which is provided with a discontinuous hardened rim. An open space in the working surface either receives or is bridged by an insertion piece that has a hardened surface portion. The result is a cam disk with an uninterrupted functional |
| 5950538 |
Printing unit having drive means |
September 14, 1999 |
| In a printing unit of an offset rotary printing press with two pairs of plate and rubber blanket cylinders, the first plate cylinder and the two rubber blanket cylinders are mechanically coupled and are driven by a common drive. The second plate cylinder is provided with its own drive. |
| 5934194 |
Rubber blanket for a printing machine |
August 10, 1999 |
| A multi-layer rubber blanket, that is intended for use on a rubber blanket cylinder, is secured at its underside to a dimensionally stable support plate. The ends of the multi-layer rubber blanket are not affected by mechanical or chemical cleaning. This is accomplished by sealing the fr |
| 5932888 |
Web or sheet edge position measurement process and device |
August 3, 1999 |
| The position of an edge of a web or sheet is measured using a photoelectric measuring device. Any edge anomalies will generate extreme edge position values. These extreme values are used together with other, more representative values, to determine an initial position of the web edge. |
| 5915304 |
Device for guiding freshly coated sheets |
June 29, 1999 |
| A device for guiding freshly coated sheets utilizes upper and lower air supply chambers which are both connected to a blower through supply conduits and a return conduit. An arrangement of throttle valves is used to connect one of the air supply conduits to either the discharge or the |
| 5909708 |
Sheet-fed offset rotary printing machine |
June 8, 1999 |
| A sheet-fed offset rotary printing machine is used for multicolor printing. A plate cylinder and a rubber blanket cylinder are utilized, as are first and second impression cylinders. Either of these two impression cylinders is operable with the blanket cylinder. Sheets to be printed can |
| 5902448 |
Method and device for preparing the beginning of a paper web feed roll for changing rolls in mot |
May 11, 1999 |
| A leading edge of a paper web on a paper web feed roll is prepared for use in a flying web splice. The paper web feed roll is supported adjacent a carriage which is movable generally parallel to an axis of rotation of the paper web feed roll. The carriage carries a paper web leading edge |
| 5901647 |
Process for driving equipment e.g. a folding device for a rotary press |
May 11, 1999 |
| Various components in a rotary printing press are driven by suitable electric motors. Each component and its associated drive motor is provided with an angle position sensor. A tolerance range for the rotary angular position of each electric motor is selected. If the actual instantaneous |
| 5899843 |
Folding table with movable detents and its method of operation |
May 4, 1999 |
| A folding table for use in forming a third fold in a printed product, is provided with a plurality of detents that can be shifted into and out of the movement path of the product. Any accumulated paper remnants can be removed from the folding table when the detents, or selected ones of t |
| 5890431 |
Ink supply device |
April 6, 1999 |
| Ink is supplied to an ink duct in a rotary printing press from an ink cartridge. The cartridge receives a piston which can be pushed into the cartridge from one end to force ink out of the discharge end of the cartridge. This piston is moved through the cartridge by a helical gear in |
| 5875992 |
Supporting journal for winding tube |
March 2, 1999 |
| A retractable and extendable support journal for engaging and supporting paper web winding tubes in a printing press utilizes a plurality of spaced radially extendable and retractable clamping strips to securely connect the winding tube to the support journals. Each clamping strip has on |
| 5875713 |
Inking system for rotary printing press |
March 2, 1999 |
| An inking system for a rotary printing press utilizes a chain seal to prevent ink from passing from the ink receiving chamber of an ink reservoir beyond the length of the portion of a cylinder to be inked. A chain seal, that is comprised of a plurality of individual plates and pins, |
| 5865120 |
Diagnostic system |
February 2, 1999 |
| A diagnostic system for a rotary printing press utilizes signals from angular position detectors on press components to identify wear patterns. These signals are compared to press-idiosyncratic operating patterns and changes between the two are analyzed to provide information on press |
| 5865119 |
Soundproofing |
February 2, 1999 |
| Soundproofing of a machine, such as a rotary printing pres, is provided by a plurality of soundproofing doors. Each of these doors is provided with a hinge at each of its four corners. The doors can each be selectively pivoted open or closed about either of two separate pivot axes or can |
| 5860617 |
Device for unwinding a web of material |
January 19, 1999 |
| A device for unwinding a web of material which is wound in a roll on a winding core is utilized in a roll changer of a printing press. An inner shaft carries a clamping cone and an outer, coaxial shaft carries a torque transmitting element. These two shafts are slidable axially independe |
| 5860342 |
Method for moving point needles on a compound course curve |
January 19, 1999 |
| Point needles in a conveying cylinder of a rotary press are caused to follow a curve course which securely fastens a web to the cylinder while eliminating transport damage to the printed products as well as reducing paper waste. The needle tips of the point needles are moved along their |
| 5848745 |
Stitching device |
December 15, 1998 |
| A stapling device is usable to staple printed products transversely to their direction of travel in a folding machine of a rotary press assembly. There is no relative movement between the stapling heads and the product sections during stapling. The stapling heads move directly radially t |
| 5842419 |
Plate end ejector for plate cylinder |
December 1, 1998 |
| A flexible plate is removed from the surface of a cylinder in a rotary printing press by supplying a fluid under pressure to a chamber into which the plate ends have been inserted. The fluid under pressure creates a positive pressure in the chamber which is sufficient to push at least on |
| 5839343 |
Cutter bar for a cutting cylinder |
November 24, 1998 |
| A cutter bar which is usable in a cutting cylinder to sever paper web trains utilizes spaced clamping strips, that contain spaced pressure strips, to sandwich a cutter blade. The pressure strips have pressure surfaces that extend out adjacent a cutter edge of the cutter blade. These |
| 5836245 |
Drive for a multi-color web-fed rotary printing press |
November 17, 1998 |
| A multi-color web-fed rotary printing press is arranged having a plurality of printing groups with each group having several individual printing units. Each printing group has an upright drive shaft that is connected to a drive motor for each of the several printing units in the group. T |
| 5816125 |
Method and apparatus for removing trimming strips |
October 6, 1998 |
| In a method and apparatus for the removal of trimming strips located on point needles, it is intended to convey the trimming strips from a cylinder rotating at high rpm, in particular a blade cylinder of a scissors cut device, to a disposal device. This is achieved in an operation in |
| 5809889 |
Process and device for securing and tightening a packing on the cylinder of a rotary printing ma |
September 22, 1998 |
| A packing is secured to a cylinder of a rotary printing machine. The ends of the packing have suspension strips that are placed in a cylinder channel. A tightening strip is movable radially in the cylinder channel. One suspension strip is held, by one side of the tightening strip, in a |
| 5809882 |
Color-printing web-fed jobbing rotary press |
September 22, 1998 |
| A multi-color web-fed rotary printing press is usable for job printing. Several printing devices are arranged as several bridge printing units which are supported by frames, at least one of which is shiftable in a horizontal direction. The bridge printing units are arranged on a lower |
| 5806431 |
Method and apparatus for axially positioning a printing plate |
September 15, 1998 |
| A method and an apparatus for axially positioning a flexible plate on a surface of a cylinder, that is divided into several axially spaced segments, utilizes a plate transport arrangement to transfer plates from a plate preparation device to the plate cylinder. The plate is axially s |
| 5806399 |
Counter-strip for a perforating device |
September 15, 1998 |
| A counter-strip for a perforating device in a signature perforating assembly for a printing press is made of a resilient material and has a linearly extending bore. A support is placed in the bore and has a number of openings which will not interfere with the operation of perforating |
| 5803450 |
Device for conveying flat floppy products |
September 8, 1998 |
| A device for conveying flat floppy products has an inlet conveyor belt with a constant velocity, an intermediate conveyor belt with a periodically changing velocity and an outlet conveyor belt with constant velocity. The intermediate conveyor belt causes a deceleration or acceleration of |
| 5803448 |
Device for the suspended guidance of sheets or webs |
September 8, 1998 |
| Sheets or a web of material are suspended and guided by a plurality of nozzles that direct air out from a closed guidance surface. The nozzles are arranged in a central stabilizing zone and two tightening zones. The air delivered in these zones is directed generally opposite to the c |
| 5795638 |
Arrangement for the attachment of a paper web leading edge on a paper supply roll |
August 18, 1998 |
| An arrangement for the attachment of a paper web leading edge on a paper supply roll utilizes a rapidly setting material, such as a hot melt adhesive in the form of beads, drops or dots to attach the leading edge of the first paper web layer to the second layer. The drops or beads may |
| 5791219 |
Signature perforating device |
August 11, 1998 |
| A signature perforating device includes a perforating cylinder and a cooperating counter perforating cylinder. The perforating cylinder carries a perforating blade strip which is formed by a number of perforating blade elements. These elements are held in place on the perforating cylinde |
| 5787806 |
Electric motor speed control |
August 4, 1998 |
| A speed control device for a multi-motor drive mechanism for driving printing press components is described. The speed control device allows the control of drive motors experiencing different instantaneous loads. This is achieved in accordance with the invention by assigning the motor |
| 5783029 |
Paper web leading edge preparation device |
July 21, 1998 |
| A leading edge of a paper web supply roll is prepared for utilization in a flying web splice. The paper web supply roll is supported adjacent a work carriage that is movable transversely across the face of the supply roll. As the work carriage moves across the web, a leading edge of the |
| 5782182 |
Printing group for a color-printing web-fed rotary press |
July 21, 1998 |
| A printing system for a multi-color web-fed rotary printing press utilizes a plurality of printing system units that are arranged in a vertical array. Each printing system unit includes a left printing unit and a right printing unit. The left or the right units are supported in a frame w |
| 5782180 |
Spray damper |
July 21, 1998 |
| A spray dampening device for a printing press utilizes a plurality of magazines, each of which is assigned to cover a spray area on a dampening cylinder. Each magazine includes at least one active dampening fluid spray nozzle and one reserve, freshly prepared spray nozzle. The active noz |
