EP0381112A2 - Procédé et dispositif pour travailler des bandes en registre, spécialement pour des fils de sécurités - Google Patents

Procédé et dispositif pour travailler des bandes en registre, spécialement pour des fils de sécurités Download PDF

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Publication number
EP0381112A2
EP0381112A2 EP90101721A EP90101721A EP0381112A2 EP 0381112 A2 EP0381112 A2 EP 0381112A2 EP 90101721 A EP90101721 A EP 90101721A EP 90101721 A EP90101721 A EP 90101721A EP 0381112 A2 EP0381112 A2 EP 0381112A2
Authority
EP
European Patent Office
Prior art keywords
web
film
cut
cutting
width
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP90101721A
Other languages
German (de)
English (en)
Other versions
EP0381112B1 (fr
EP0381112A3 (fr
Inventor
Wittich Dr. Kaule
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GAO Gesellschaft fuer Automation und Organisation mbH
Original Assignee
GAO Gesellschaft fuer Automation und Organisation mbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GAO Gesellschaft fuer Automation und Organisation mbH filed Critical GAO Gesellschaft fuer Automation und Organisation mbH
Publication of EP0381112A2 publication Critical patent/EP0381112A2/fr
Publication of EP0381112A3 publication Critical patent/EP0381112A3/fr
Application granted granted Critical
Publication of EP0381112B1 publication Critical patent/EP0381112B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/20—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed
    • B26D5/30—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed having the cutting member controlled by scanning a record carrier
    • B26D5/32—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed having the cutting member controlled by scanning a record carrier with the record carrier formed by the work itself
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/01—Means for holding or positioning work
    • B26D7/015—Means for holding or positioning work for sheet material or piles of sheets
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/40—Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
    • D21H21/42—Ribbons or strips
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/04—Processes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/141—With means to monitor and control operation [e.g., self-regulating means]
    • Y10T83/148—Including means to correct the sensed operation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/525—Operation controlled by detector means responsive to work
    • Y10T83/536—Movement of work controlled
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/647—With means to convey work relative to tool station
    • Y10T83/6539—With means for transverse positioning of work on a moving conveyor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/647—With means to convey work relative to tool station
    • Y10T83/6584—Cut made parallel to direction of and during work movement
    • Y10T83/6587—Including plural, laterally spaced tools

Definitions

  • the invention relates to a method for register-accurate processing of material webs, in particular for the production of security elements according to the preamble of claim 1, a device for carrying out the method and material webs which can be used as semi-finished products for the production of security threads.
  • the security threads are u. a. provided with printed images which run in the longitudinal direction of the thread, known print images of this type being in the form of patterns or alphanumeric characters, optically active structures and / or visually visible and / or only machine-readable prints, additives or coatings.
  • the printed images extend in a constant form over the entire length of the thread, with patterns or typefaces being repeated as often as desired.
  • terms such as print samples, printed images, etc. are representative of any type of identification; in this sense, embossing, punching, coating etc. are also to be understood as "printed images”.
  • printed security threads are made from wide sheets of film.
  • the film webs are printed with print patterns or lettering in a parallel arrangement; these film webs are then cut into the individual security threads. Since the threads are usually only 0.5 - 1.5 mm wide a register-accurate cutting of the film to the printed image generally involves a lot of effort. It was therefore preferred in many cases to choose the individual lettering and the width of the threads so that after cutting at least one lettering is always found completely on the cut thread (DE-OS 14 46 851).
  • Another known method is to print the desired pattern with larger spaces on transparent foils and then to make the cut in the space.
  • the transparent area is not recognizable, but only the print pattern running in the longitudinal direction of the thread.
  • the consequence of this method is that the thread to be embedded must be considerably wider than the visible part of the thread.
  • the embedding of a wide thread has an adverse effect on the quality of the documents and security papers, so the tear strength of the paper and the adhesion of the thread in the paper are reduced.
  • threads that exceed a certain width can no longer be produced with the required production reliability, i. H. embed in the paper without forming holes.
  • a method that allows a register-accurate processing of film webs in circumvention of the above problems is, for. B. from EP-A 0 238 043 known.
  • security threads or the film webs that carry the security threads are equipped with a mechanically tapped longitudinal surface structure.
  • profile rollers or similar devices that engage in these structures the film webs can be used in exact alignment with these structures for further processing devices, such as. B. printing devices or cutting devices are supplied.
  • this solution is based on the application of film webs with a suitable upper surface structures limited or requires an additional process step to apply the surface structures.
  • the sensors and the processing stations must have a fixed spatial relationship to one another, which requires an additional stable mechanical connection between the machine and the sensor.
  • an arrangement for correcting deviations from the target position consists of a feed device (register controller, etc.) and a sensor head, which were passed in this order by a material web provided with control markings (DE-AS 21 46 692).
  • the cutting station is located either in front of or behind the sensor head.
  • the sensor head continuously determines the deviations of the web markings from a target position, forms a control signal and passes it on to the feed device.
  • the feed corrects the position of the material web relative to the cutting station based on the control signal.
  • the device resulting from the method should be able to be easily integrated into existing machining or manufacturing facilities due to the spatially flexible design options.
  • a device for the production and processing of security threads is the subject of a subsidiary claim.
  • a material web as it can be used for the production and processing of security threads as a semi-finished product is also the subject of a subsidiary claim.
  • the particular advantage of the invention is that a method is used which allows position control in the technical sense, i. H.
  • the feed receives an actuating signal, the common reference line being the web edge.
  • position controls which can only react to deviations from target values, such position controls are free of control errors.
  • Another advantage of the method according to the invention is that there is great freedom in the choice of the placement of the sensors.
  • the sensor can be placed at any distance in front of the processing station. For each point on the film web, it is only necessary to ensure that the associated control signal is present at the feeder when it enters the station; a constant belt speed or an exact machine cycle makes this task easier.
  • This method can now be used to cut film webs on which the print image of security threads is arranged several times in a juxtaposition so that each thread cut from this film web has its print image in the desired position, e.g. B. in a central position.
  • the cutting process is carried out in two steps.
  • the two steps of the cutting process are divided into a rough cut and a fine cut.
  • first step several foil strips of the same width are cut out of the meter-wide foil webs in a rough cut. Due to their constant width, these foil tapes can be safely guided along the web edges in simple, standardized devices.
  • second step the fine cut, the individual security threads are then cut from the foil strips.
  • the mostly transparent foils are preferably designed in such a way that after a number of uses (print images of individual security threads) a non-printing area is provided.
  • a control line that contrasts with the transparent film web is printed in this area.
  • the film web is cut into the film strips along this control line, the width of the control line being chosen so that the cut line always runs within this control line. Since the control line is printed together with the printed image, it is ensured that the edges of the control lines run parallel to the printed images.
  • film strips are obtained which have a cut control line at least on one web edge. Due to the parallelism of the print pattern and control line edge, the width of this cut control line is a direct measure of the distance between the printed image and the web edge. In order to be able to carry out the fine cut using the method according to the invention, it is therefore only necessary to determine the remaining width of the control line.
  • the resulting measurement value can then be used directly to form the control signal for the feed device.
  • optical sensors for example a line grid of CCD sensors, are preferably used.
  • the method according to the invention can also be used in other processes and material web processing, e.g. B. for the application of embossed structures in exact alignment with a print image previously applied to a film, for the application of print images which are to be assigned to the already existing markings of the material web etc.
  • a security thread 1 which is provided with a printed image 2 oriented towards the center of the thread in order to increase the security against forgery.
  • the printed image consists of the lettering "XYZ", which is repeated over the length of the thread.
  • Transparent plastics such as polyester are preferably used as the material for security threads.
  • the width of the threads that are embedded in paper typically ranges from 0.5 to 1.5 mm; Threads embedded in plastic also have larger widths.
  • the security threads are made from foil webs that have a useful width of 0.5 to 1.5 m.
  • Fig. 2 shows an embodiment of such a film web 3, as it is used as a semi-finished product for the production of security threads.
  • the printed image of the film web consists of utility packages 4 arranged next to one another with adjoining or intermediate control lines 5.
  • the utility packages themselves consist of adjacent individual benefits, with about 50 individual benefits, each of which contains the printed image of a security thread, forming such a utility package.
  • the control lines are located in the pressure-free area between the utility packages and run parallel to them.
  • the film web 3 is cut into individual film strips, each of which contains a utility package.
  • the web feed is adjusted using the control lines 5 or using separate edge lines 6.
  • the film is cut by means of a plurality of cutting knives aligned parallel to one another, the cutting knives are arranged so that the cut is made within each of these control lines 5.
  • FIG 3 shows a section of such a film web 3, with the rough cutting line 7 running in the control line 5.
  • the control line 5 adjoins the printed images 8 of the individual security threads.
  • the width of the control lines is dimensioned such that the course of the rough cutting line within the control line is guaranteed over the entire length of the web, even taking into account all cutting tolerances. Due to the parallel arrangement of the knives, the film webs are also cut constantly in a predetermined width over the entire web length.
  • These film strips are cut into the individual security threads in a device shown schematically in FIGS. 4 and 5 in a fine cutting process.
  • the film strips rolled up on intermediate storage rolls 10 during the rough cut are drawn off from these storage rolls in this device and fed to the processing station, in this case a cutting station 12, with the aid of a transport device.
  • This cutting station 12 is equipped with a knife roller, not shown in the figures, which consists of a plurality of disk-shaped knives arranged jointly on an axis. The number of knives is matched to the number of individual uses on the foil tape; the distance depends on the desired security thread width.
  • this film passes through this cutting device 12, this film is thus cut into a multiplicity of security threads 13, which are separated from one another after the rolls 14 have passed and are wound onto individual bobbins (also not shown).
  • a compensation unit 15 in the transport system provided with the help of which the belt speed can be kept constant at a predetermined value.
  • a feed device 16 is provided in front of the cutting device, with which the belt 11 can be inserted into the cutting device 12, in particular the knife roller, in a predetermined position.
  • this feed device consists of a base plate 17 with two rows of guide pins 18; the mutual spacing of the rows is matched to the bandwidth, so that the tape is guided through edge stops on both sides.
  • the feed device is closed by an upper cover 19.
  • Spacer elements which are somewhat higher than the strip thickness and lie between the base plate 17 and the cover 19, ensure an unimpeded passage of the strip through the feed device.
  • the device is a total of z. B. via a spindle drive 20 laterally to the tape running direction.
  • the displacement is controlled via an actuator 21, for example a stepper motor.
  • the respective position of the feed device 16 is determined via a measuring and control circuit.
  • a measuring device 22 is provided in front of the feed device, which is arranged in the region of the cut control line 5 and by means of which the width of this control line is measured.
  • a measuring device z. B. a CCD element can be used in connection with corresponding electronic circuits 23, which generate a control signal for the positioning on the basis of the measurement result.
  • This cut control line 5 is a direct measure of the distance of the printed images of the individual security threads to the band edge 25. If one measures the width of this control line, it can be calculated in advance exactly in which position the film band will be with the aid of the feed device when it enters the processing device must be kept so that the printed images of the individual security threads z. B. in the desired center position exactly between two knives.
  • the measuring device 22 itself can be arranged at almost any desired distance from the processing or feed station. It is only z. B. via a corresponding temporal correlation to ensure that the width of the control line detected by a certain band section and the actuating signal determined from this width determination is present at the moment at the feed device in which the relevant band section passes through the feed device. To ensure that no errors occur here, additional elements that control and register the tape run, such as counting devices for tape lengths, are used. The temporal correlation can also take place using the machine cycle or a constant path speed of the transport device.
  • the z. B. lead only on one edge and with appropriate mechanical means it is ensured that the tape always rests with the respective leading edge on the feed device.
  • other processing stations such as embossing machines, printing units and the like.
  • any pattern along each security thread be applied.
  • the above-described cutting device can also be connected to these devices.
  • the feed of the strip to the processing stations and to the cutting station can be controlled via a single feed device, as described above, this feed device being upstream of both stations.
  • each of the processing stations can also be provided with such a feed device, but both feed devices and the corresponding actuators can access the measurement result of a common measuring device.
  • the device according to the invention is expanded by a further measuring unit 24, which allows a final inspection.
  • This control device 24 is, for. B. in turn a CCD camera that detects one of the threads already cut and with the help of which the actual position of the printed images on the threads can be checked on behalf of all others.
  • this device z. B. determine systematic errors, the z. B. arise from a zero-point adjustment of the feed device to the processing device. Such errors cannot be detected by the measuring device 22 described above.
  • the procedure for fine cutting is preferably such that at least one of the cutting lines still runs in the control line (FIG. 6). If the thread 31, which still contains this part of the control line, is now run into the control device 24, the width of the control lines still remaining on the thread can easily be determined with good contrast.
  • this control line on the control thread 31 has a predetermined width, since the control line was printed together with the print image of the individual security threads on the film and this common printing ensures that the control line lies at a predetermined distance from these print images.
  • the control device which can be similar in construction to the measuring device, but is arranged behind the processing station, it is possible to carry out a constant quality control that is easy to carry out using measuring technology.
  • the feed control of the film strip into the processing device is carried out using control lines provided specifically for this purpose.
  • the printed images of the individual security threads already meet the requirements in terms of design and contrast so that they can serve as control lines themselves.
  • the z. B. have a longitudinal stripe pattern, one of the color stripes can be used directly as a control line. 7 shows such an embodiment.
  • the security thread should each have a pattern with three differently colored, border-parallel color strips, which, for. B. represent the national colors black, red, gold, wear.
  • the color strips 41, 42, 43 are printed next to one another and without a space with a color sequence that changes from thread to thread on a corresponding film.
  • This arrangement of the color strips has u. a. also the advantage that it is not possible to cut exactly between two directly adjacent color strips when cutting. In this case, the smallest deviations would result in the security thread having disruptive color edges, which are generally clearly visible.
  • the film webs can be printed in direct juxtaposition with the different color strips, without any gaps being necessary here in order to compensate for cutting tolerances.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Credit Cards Or The Like (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Paper (AREA)
  • Handling Of Sheets (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Undergarments, Swaddling Clothes, Handkerchiefs Or Underwear Materials (AREA)
EP90101721A 1989-02-01 1990-01-29 Procédé et dispositif pour travailler des bandes en registre, spécialement pour des fils de sécurités Expired - Lifetime EP0381112B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3902960 1989-02-01
DE3902960A DE3902960C2 (de) 1989-02-01 1989-02-01 Materialbahn, insbesondere Folienbahn als Halbzeug zur Herstellung von Sicherheitselementen in Form von Fäden und Bändern

Publications (3)

Publication Number Publication Date
EP0381112A2 true EP0381112A2 (fr) 1990-08-08
EP0381112A3 EP0381112A3 (fr) 1991-10-09
EP0381112B1 EP0381112B1 (fr) 1995-08-02

Family

ID=6373222

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90101721A Expired - Lifetime EP0381112B1 (fr) 1989-02-01 1990-01-29 Procédé et dispositif pour travailler des bandes en registre, spécialement pour des fils de sécurités

Country Status (6)

Country Link
US (2) US5239902A (fr)
EP (1) EP0381112B1 (fr)
AT (1) ATE125742T1 (fr)
DE (2) DE3902960C2 (fr)
DK (1) DK0381112T3 (fr)
ES (1) ES2076234T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992011142A1 (fr) * 1990-12-20 1992-07-09 Gao Gesellschaft Fúr Automation Und Organisation Mbh Fil de securite metallique magnetique avec une ecriture negative

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2282345B (en) * 1993-10-02 1997-06-04 Graham Athey Signature filaments and security papers
US6588309B2 (en) * 1997-11-10 2003-07-08 Donald E. Weder Decorative grass having a three-dimensional pattern and methods for producing same
DE19819571A1 (de) 1998-04-30 1999-11-04 Giesecke & Devrient Gmbh Wertdokument mit Sicherheitselement
AU5317099A (en) * 1998-07-24 2000-02-14 Hilary Robin Zelson Craft lanyard material
US20030105443A1 (en) * 2000-07-10 2003-06-05 The Procter & Gamble Company Absorbent article comprising mircroporous film with registration mark
DE10132892A1 (de) * 2001-07-06 2003-01-16 Giesecke & Devrient Gmbh Verfahren und Vorrichtung zum Herstellen eines Substrats mit Sicherheitselementen für Sicherheitsdokumente
US20050066781A1 (en) * 2003-06-27 2005-03-31 Kurt Begemann Method and apparatus for trimming printed products
ITUA20163797A1 (it) * 2016-05-25 2017-11-25 Fotoba Int S R L Metodo e dispositivo automatico per il taglio di substrati recanti immagini stampate
DE102017004999A1 (de) 2017-05-24 2018-11-29 Giesecke+Devrient Currency Technology Gmbh Verfahren zur Herstellung von Mehrnutzenstreifen und deren Verwendung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0110670A1 (fr) * 1982-11-24 1984-06-13 Xerox Corporation Dispositif à rouleau mobile latéralement
US4694181A (en) * 1986-07-07 1987-09-15 Piller Richard G Web lateral position control system using both coarse and fine mode control means
EP0238043A2 (fr) * 1986-03-18 1987-09-23 GAO Gesellschaft für Automation und Organisation mbH Document de sécurité à fil de sécurité incorporé
US4819528A (en) * 1987-12-03 1989-04-11 Essex Manufacturing Company Ribbon cutting apparatus having multiple, independently driven groups of cutting blades

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GB1095286A (en) * 1963-07-08 1967-12-13 Portals Ltd Security device for use in security papers
DE2146492B2 (de) * 1971-09-17 1978-07-13 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Anordnung zur regelung der seitlichen lage einer laufenden bahn
SE383121B (sv) * 1974-07-10 1976-03-01 Hammars Mekaniska Verkstad Ab Sett att utfora rotkapning av virke och anordning for utforande av settet
US4633747A (en) * 1985-09-30 1987-01-06 Gary Steel Products Corp. Sheet material slitter
DE3614981A1 (de) * 1986-05-02 1987-11-05 Erhardt & Leimer Gmbh Verfahren und vorrichtung zum fuehren einer laufenden warenbahn
JPS6397566A (ja) * 1986-10-13 1988-04-28 Tokyo Kikai Seisakusho Ltd 輪転機における料紙切断位置自動調整装置
US5142955A (en) * 1991-05-16 1992-09-01 Trienco, Inc. Lumber cutter for removing end defects and sawing to desired lengths

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0110670A1 (fr) * 1982-11-24 1984-06-13 Xerox Corporation Dispositif à rouleau mobile latéralement
EP0238043A2 (fr) * 1986-03-18 1987-09-23 GAO Gesellschaft für Automation und Organisation mbH Document de sécurité à fil de sécurité incorporé
US4694181A (en) * 1986-07-07 1987-09-15 Piller Richard G Web lateral position control system using both coarse and fine mode control means
US4819528A (en) * 1987-12-03 1989-04-11 Essex Manufacturing Company Ribbon cutting apparatus having multiple, independently driven groups of cutting blades

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992011142A1 (fr) * 1990-12-20 1992-07-09 Gao Gesellschaft Fúr Automation Und Organisation Mbh Fil de securite metallique magnetique avec une ecriture negative
US5354099A (en) * 1990-12-20 1994-10-11 Gao Gesellschaft Fur Automation Und Organisation Mbh Magnetic metallic safeguarding thread with negative writing
US5599047A (en) * 1990-12-20 1997-02-04 Gao Gesellschaft Fur Automation Und Organisation Mbh Magnetic metallic safeguarding thread with negative writing and a method of making same

Also Published As

Publication number Publication date
DE3902960A1 (de) 1990-08-02
ES2076234T3 (es) 1995-11-01
EP0381112B1 (fr) 1995-08-02
DK0381112T3 (da) 1995-12-11
EP0381112A3 (fr) 1991-10-09
US5335572A (en) 1994-08-09
DE3902960C2 (de) 1999-07-01
US5239902A (en) 1993-08-31
ATE125742T1 (de) 1995-08-15
DE59009454D1 (de) 1995-09-07

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