EP0374481B1 - Méthode et dispositif pour la surveillance automatique de la destruction de feuilles minces - Google Patents

Méthode et dispositif pour la surveillance automatique de la destruction de feuilles minces Download PDF

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Publication number
EP0374481B1
EP0374481B1 EP89121238A EP89121238A EP0374481B1 EP 0374481 B1 EP0374481 B1 EP 0374481B1 EP 89121238 A EP89121238 A EP 89121238A EP 89121238 A EP89121238 A EP 89121238A EP 0374481 B1 EP0374481 B1 EP 0374481B1
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EP
European Patent Office
Prior art keywords
cutting device
sensor
signal
destruction
sheet material
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.)
Expired - Lifetime
Application number
EP89121238A
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German (de)
English (en)
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EP0374481A3 (fr
EP0374481A2 (fr
Inventor
Karl Leuthold
Wilhelm Hell
Mümtaz Ertürk
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GAO Gesellschaft fuer Automation und Organisation mbH
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GAO Gesellschaft fuer Automation und Organisation mbH
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Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C3/00—Registering or indicating the condition or the working of machines or other apparatus, other than vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/0007—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating documents
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D11/00—Devices accepting coins; Devices accepting, dispensing, sorting or counting valuable papers
    • G07D11/10—Mechanical details
    • G07D11/16—Handling of valuable papers
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D11/00—Devices accepting coins; Devices accepting, dispensing, sorting or counting valuable papers
    • G07D11/20—Controlling or monitoring the operation of devices; Data handling
    • G07D11/22—Means for sensing or detection
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D11/00—Devices accepting coins; Devices accepting, dispensing, sorting or counting valuable papers
    • G07D11/50—Sorting or counting valuable papers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/0007—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating documents
    • B02C2018/0038—Motor drives

Definitions

  • the invention relates to a method and a device for monitoring the destruction of thin sheet material, in particular banknotes in an automatic sorting system, the sheet material being fed from a transport device, sheet by sheet, one after the other to a motor-driven cutting device having intermeshing knife rollers.
  • Damaged, worn, dirty or otherwise unusable banknotes are sorted out of the money in circulation and destroyed. This is happening increasingly with automatic banknote sorting systems in which, among other things, banknotes that are not fit for circulation are sorted out. Unfit banknotes must be destroyed. For this purpose, the banknotes are cut into narrow strips in a cutting or shredding device and, under certain circumstances, also additionally cut into pieces by cross cutting.
  • DE-PS 27 59 678 shows a device for the automatic destruction of banknotes separated in an automatic sorting system, a light barrier being arranged in front of the cutting device for monitoring the destruction and for counting the destroyed banknotes.
  • the banknotes classified as unfit for circulation reach the cutting device via a branch of the transport device, and they pass the light barrier shortly before entering the cutting device.
  • the known system and also the known method for monitoring the destruction have proven themselves, but it has been shown that erroneous counts can occur due to certain sources of error.
  • the light barrier In order to enable the bank notes entering the cutting device to be recorded as completely as possible, the light barrier must be arranged as close as possible in front of the knife rollers of the cutting device. This ensures that a banknote that has passed the light barrier cannot be branched off or picked out in front of the knife rollers.
  • the close proximity of the light barrier and knife rollers leads to a rapid contamination of the light barrier, since a considerable amount of chips and dust is generated with each individual cutting process. The function of the light barrier is impaired if cleaning is not carried out at extremely short intervals.
  • the light barrier is arranged relatively close to the knife rollers of the cutting device, there is still a certain distance between the inlet gap of the knife rollers on the one hand and the light barrier on the other hand for design reasons. It has been observed that especially very lobed banknotes or banknotes with kinked leading edges or donkey ears tend to curl up in front of the counter rotating knife rollers so that, although properly counted, they are not destroyed.
  • a banknote is partially rolled up in front of the knife rollers
  • the rear part of the banknote can also remain like a flag in front of the light barrier. Since the light barrier does not report the proper passage of a bank note in good time in this case, an emergency stop of the machine is initiated for reasons of counting security. Since the knife rollers continue to run for a certain time due to the inertia of the moving parts, further separated banknotes may get into the cutting device and either get caught together with the partially rolled banknote in front of the knife rollers or pass through the shredder device with the partially rolled banknote. In any case, the trailing banknotes are not properly counted by the light barrier, since the light barrier of the partially rolled-up banknote in front of the knife rollers is out of function.
  • the speed at which banknotes are drawn into the cutting device is set so that it is somewhat greater than the speed at which the banknote is transported to the cutting device.
  • the banknotes entering the cutting device are accelerated briefly while the rear section of the banknote is still in the transport system located. If the banknote breaks, the light barrier may report two events, that is to say two banknotes that have passed through incorrectly, even though they were only the two parts of a single torn banknote.
  • the object of the invention is to provide a method and a device for monitoring the destruction of thin sheet material, in which the detection of individual sheets and thus the counting of the sheets intended for destruction is carried out with greater accuracy.
  • the basic idea of the invention is to monitor the destruction of a bank note using suitable sensory means, the destruction process itself or its immediate consequence being recorded.
  • the process of destruction itself can be sensed by detecting changes in the electrical or mechanical behavior of the shredder device or by monitoring the typical shredder noise that occurs during the destruction with suitable detectors.
  • the direct consequence of the destruction can be detected by sensing the cut sheet material leaving the cutting device, which forms a kind of "snippet cloud" behind the cutting device in the direction of transport.
  • the solution according to the invention allows further statements to be made, for example about banknote length, banknote quality and throughput of multiple banknotes.
  • the sensor signals generated by the sensor means used have a specific duration, intensity and also a specific amplitude profile depending on the banknote length, on the nature of the destroyed banknote and on the excess thickness resulting from overlapping banknotes.
  • the sensor signal can be used to determine whether a whole or two parts of a torn banknote have been destroyed. If several banknotes arrive despite the quick switch-off options, the characteristic of the sensor signal can also provide information about the number of shredded banknotes.
  • the sensor signals generated according to the invention can be correlated with other detector signals generated in other parts of the banknote sorting system in order to ensure the reliability of the counting and the evaluation of the above To further improve the parameters of destroyed notes.
  • the sensor signal can be correlated with the signal of a light barrier provided in front of the cutting device.
  • the light barrier signal With the help of the light barrier signal, an expectation window is generated, within which the sensor signal must appear if it is running properly.
  • the light barrier can be arranged at a sufficient distance from the knife rollers, which protects it from dirt.
  • the invention can be used in general for sheet-like material, but is used in particular for automatic banknote sorting systems.
  • the embodiment described below relates to such a system, as is generally shown in Fig. 1 (see also DE-PS 27 59 678).
  • this known automatic bank note sorting system 1 comprises several modules or modules 10a, 10b, 10c, 100, 10d - 10h.
  • the pack of banknotes transported in magazines is debanded in module 10a.
  • the banknotes are separated in module 10b.
  • block 10c it is checked, among other things, whether the banknotes are damaged, worn, soiled or otherwise unsuitable for further circulation. Unfit banknotes can be destroyed in module 100.
  • the module 100 contains a cutting device 20, to which the banknotes that are not fit for circulation are successively fed.
  • the cutting device 20 contains two counter-rotating and intermeshing knife rollers which slit each individual bank note.
  • Cutting devices are also known which cut the banknotes lengthways and crosswise.
  • the snippets may get into a container 2 with suction air support, which can also be installed remotely from the system.
  • banknotes that are not fit for circulation can also be stored in subsequent modules 10d and 10e in tandem operation. Eligible banknotes are stacked and banded in modules 10f and 10g. In the last module 10h, banknotes are collected which have to be reworked by hand.
  • the bank notes cut or shredded into chips in module 100 must be counted using a very reliable method, since no conclusions can be drawn from the shredded snippets as to the number of destroyed bank notes. To do this, it is necessary to record each individual cutting or destruction process exactly.
  • FIG. 2 shows details of the cutting device 20 with a plurality of sensors, which can be provided individually or in any combination in order to detect the destruction of a banknote or the direct result of a destruction.
  • individual bank notes are introduced along a transport path T in the direction of the arrow through a slot into a housing of the cutting device 20.
  • a light barrier 11 is arranged on the transport path T, which registers bank notes passing through.
  • the cutting device 20 comprises two intermeshing knife rollers 12 and 13 which are rotated against each other in the direction indicated by the arrow.
  • the two knife rollers are driven by an electric motor 15 via a drive belt 14.
  • a first sensor device for generating a signal representative of the destruction of a bank note detects the increased mechanical load occurring during the cutting process. In the exemplary embodiment shown, this is done with a proximity switch 16, which registers the deflection of a tensioning roller 9.
  • the drive belt 14 has a certain tension. If a banknote gets between the knife rollers 12 and 13, it increases on the knife rollers acting mechanical load, with the result that the tension of the drive belt 14 increases. As a result, the tensioning roller 9 is moved in the direction of the proximity switch 16, which generates a corresponding signal.
  • a similar signal can be determined on all system components that are affected by the increased mechanical load using suitable sensors (displacement accelerometers or force transducers).
  • This second sensor for detecting the destruction process of a bank note can of course also be used when the electric motor 15 is rigidly coupled to the knife rollers.
  • the signal obtained via the change in current is all the more meaningful the lower the kinetic energy due to the moving masses, which more or less compensates for mechanical stress during shredding.
  • the method described is therefore preferably used when the kinetic energy of the system is low.
  • a further possibility of sensing the process of destruction by sensors is to evaluate the noise that occurs during each cutting process.
  • This noise is detected by a microphone 18 and converted into a corresponding electrical signal.
  • the microphone 18 can be coupled via air or directly be connected to the housing of the cutting device, absorbing the structure-borne noise.
  • the entire cutting device can also be acoustically decoupled from the sorting machine via a corresponding bearing.
  • Acoustic monitoring is preferably used when the kinetic energy present in the system is relatively high, so that a signal obtained via the current change described above does not have the desired informative value.
  • the destroyed sheet material behind the shredder rollers can also be detected using suitable detectors.
  • each destroyed banknote forms a dust and snippet cloud W after it emerges from the knife rollers 12 and 13.
  • the area in which the cloud is formed can be monitored, for example, by an optical sensor 19, the Sensor is arranged outside a housing 8 which is transparent to the sensor radiation.
  • Others, for example ultrasound sensors, are also suitable for detecting the snippet cloud.
  • piezoelectric materials in particular piezoelectric foils, which are distinguished by special electrical properties. External forces or deformation result in surface charges of different polarity on opposite surfaces of such a material, which can be measured by measurement. This tension only occurs when the force changes. At As with a capacitor, the voltage signal returns to the value 0 with a constant force, with a certain time constant. A negative force effect of the same size causes a voltage pulse of opposite polarity.
  • PVDF polyvinylidene fluoride
  • Pennwalt Piezo Film Ltd. Great Britain
  • a long chain semicrystalline polymer made of CH 2 - CF 2. 5 shows the simplest embodiment of such a piezo film for sensor technology purposes. Both surfaces of the piezo film 21 are given a complete metallic coating 23. The change in the surface charge density caused by deformation or bending can be measured on the measuring device 24 as a voltage between the metallic regions or can be processed further for the corresponding purposes.
  • Piezo foils have the advantage that they work in a wide frequency range (1 ... 10 MHz) and have a wide dynamic range in sensitivity. This sensitivity when converting mechanical deformation into electrical signals ranges from the slightest touch to the monitoring of material destruction. Another important point is the low manufacturing and processing costs of these films.
  • FIG. 2 shows the use of a piezoelectric film according to the invention in its simplest embodiment.
  • the film 21 is fastened in a flag-like manner behind the shredder rollers 22 in such a way that the snippet cloud when shredding banknotes W meets the piezo film.
  • the pounding banknote chips W deform the film in the manner indicated in FIG. 5 25 and thus induce a voltage between the electrodes 23.
  • This voltage pulse is further processed by the measuring electronics 24.
  • the analog signal of the film processed and compared with the signal of the light barrier 11 (Fig. 2) in front of the shredder rollers to make sure that every single bank note has actually passed through the shredder.
  • the simplest form of evaluation consists in comparing the sensor signal with a suitable threshold value once or several times over the signal curve. If the sensor signal exceeds the threshold value, a corresponding counter is incremented by one. The comparison process can be initiated with the rising edge of the sensor signal.
  • suitable threshold values statements about destroyed banknotes, about double or multiple banknotes, about the length of the destroyed banknote and its quality are also possible.
  • a very reliable counting function is guaranteed with all the methods mentioned. If further statements, for example about the banknote quality, are desired, the most suitable procedure will be selected. For example, the acoustic signal is preferably used when statements about the quality of the grade are desired. A relatively well preserved and still rigid banknote makes a different sound than a worn, lobed note. With the help of suitable analysis methods (e.g. frequency analysis) statements about the quality of the destroyed note are possible.
  • suitable analysis methods e.g. frequency analysis
  • the acoustic signal is correlated with a light barrier signal, among other things.
  • FIG. 3 shows the time profile of a rectangular pulse signal S11 generated by the light barrier 11 and a sensor signal S18 generated by the microphone 18. Since the light barrier 11 has a certain distance from the knife rollers 12 and 13 and the bank note has a certain speed, there is a corresponding time delay ⁇ t1 between the two front and back edges of the signals S11 and S18. Depending on the throughput speed of the banknote and the banknote length, the signal S18 has a time period ⁇ t2.
  • a so-called expectation window is generated in a control device, in which the rising edge of the sensor signal S18 must appear after the time ⁇ t1 during normal operation. If the signal does not appear, there is a fault. With this evaluation method, interference signals that lie outside the expected gate are automatically hidden. Another expectation window can be generated to check the time ⁇ t2, which is proportional to the length of the destroyed banknote.
  • the signal S18 shown in FIG. 3 can alternatively also be a signal generated by the proximity sensor 16, a signal generated by the current sensor 17 or a signal received by the optical detector 19.
  • control and evaluation circuit the essential component of which is a microprocessor 30 equipped with a memory 32, into which setpoint signals can be input via an input device 31.
  • the microphone 18 is connected to the microprocessor 30 via a bandpass filter 21, a regulated amplifier 22 and an analog / digital converter 23.
  • the gain of the amplifier 22 can be adjusted by the microprocessor 30 via a digital / analog converter 24.
  • the signal picked up by the microphone 18 is filtered, amplified and converted into a digital value and then, as already mentioned, in the microprocessor 30 correlated with the light barrier signal, processed accordingly.
  • the microprocessor 30 outputs a test signal to a loudspeaker 33 and evaluates the test signal recorded by the microphone 18. Corrections are made via the digital / analog converter 24 to the amplifier 22.
  • the microprocessor 30 is connected to a unit 35, which is responsible, among other things, for controlling the sorting system and for logging the recorded data.
  • the unit 35 has access to a part of the memory 32 in which, depending on the number of parameters evaluated, the results for the notes destroyed in each case are stored. These are, for example: number of destroyed notes, information about length, quality and multiple deduction.
  • the microprocessor can also be connected to a sensor 36 which permanently monitors the speed of the shredder knives. This information can be used to improve the determination of the length of a destroyed note.
  • signals from the state sensors 37 present in the sorting machine can be routed to the microprocessor in order to include the results of these sensors in the evaluation of the quality of a destroyed note.
  • the light barrier 11 can be used to obtain additional information that can also be included in the evaluation of the acoustic signal. If the front edge of a banknote is detected by the light barrier 11, the microprocessor 30 outputs an increased current signal to the light barrier 11 so that it can be operated practically as a transmitted light sensor. If several banknotes pass through the light barrier, the translucent light is attenuated more and the amplitude of the signal correspondingly weaker.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Controlling Sheets Or Webs (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Disintegrating Or Milling (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Claims (18)

  1. Procédé de surveillance de la destruction de matériaux en feuille mince, en particulier de billets de banque, dans une installation de tri automatique, le matériau en feuilles étant amené à la file feuille par feuille par un dispositif transporteur à un dispositif de coupe motorisé présentant des cylindres à couteaux s'interpénétrant, caractérisé en ce que le processus de destruction et/ou son résultat immédiat est surveillé par des capteurs.
  2. Procédé selon la revendication 1, caractérisé en ce que la sollicitation électrique du système moteur est surveillée.
  3. Procédé selon la revendication 1, caractérisé en ce que la sollicitation mécanique du dispositif de coupe, respectivement du système moteur est surveillée.
  4. Procédé selon la revendication 1, caractérisé en ce que le bruit provenant du processus de destruction est surveillé par un capteur acoustique.
  5. Procédé selon la revendication 1, caractérisé en ce que le matériau en feuilles coupé quittant le dispositif de coupe est surveillé par des capteurs immédiatement après le dispositif de coupe dans la direction du transport.
  6. Procédé selon la revendication 1, caractérisé en ce que le matériau en feuilles coupé quittant le dispositif de coupe est surveillé par des moyens piézo-électriques immédiatement après le dispositif de coupe dans la direction du transport.
  7. Procédé selon l'une quelconque des revendications 1 à 6, caractérisé en ce qu'un ou plusieurs capteurs sont mis en oeuvre pour surveiller le processus de destruction.
  8. Procédé selon la revendication 7, caractérisé en ce que le signal d'un détecteur de présence disposé, dans la direction du transport, en amont du dispositif de coupe est utilisé pour élaborer une fenêtre d'occurrence escomptée.
  9. Procédé selon la revendication 7, caractérisé en ce que le signal d'au moins un capteur est transmis à un microprocesseur dans lequel le signal est interprété en ce qui concerne plusieurs paramètres tels que les nombres, les déterminations de la longueur, les déterminations de la qualité, les reconnaissances de billets multiples.
  10. Dispositif de destruction automatique d'une classe déterminée de feuilles minces mises à part par une installation de tri automatique (1), en particulier de billets de banque et similaires, comprenant un dispositif de coupe (20) motorisé équipé de cylindres à couteaux (12, 13), auquel les feuilles à détruire sont amenées individuellement et pourvu de capteurs servant à compter les feuilles à détruire, caractérisé en ce que les capteurs (16, 17, 18 ,19) sont conçus et couplés au dispositif de coupe ou disposés en aval de celui-ci de façon à surveiller le processus de destruction et/ou son résultat immédiat.
  11. Dispositif selon la revendication 10, caractérisé en ce qu'il comprend un capteur de courant (17) qui surveille le courant moteur du dispositif de coupe.
  12. Dispositif selon la revendication 10, caractérisé en ce qu'il comprend un capteur de trajectoire, de force ou d'accélération (16) qui surveille la sollicitation mécanique du dispositif de coupe.
  13. Dispositif selon la revendication 10, caractérisé en ce qu'il comprend un transducteur acoustique (18) qui est couplé directement au dispositif de coupe (20) ou par couplage aérien et surveille le bruit provenant d'une destruction.
  14. Dispositif selon la revendication 10, caractérisé en ce qu'un capteur optique (19) détectant le matériau en feuille découpé sortant des cylindres à couteaux (12, 13) ou un capteur ultrasonore est disposé en aval de ceux-ci.
  15. Dispositif selon la revendication 10, caractérisé en ce qu'un capteur piézo-électrique détectant le matériau en feuille découpé sortant des cylindres à couteaux (12, 13), est disposé en aval de ceux-ci.
  16. Dispositif selon la revendication 15, caractérisé en ce que le capteur piézo-électrique est une feuille piézo-électrique.
  17. Dispositif selon une ou plusieurs des revendications 10 à 16, caractérisé en ce qu'il comprend un microprocesseur qui corrèle au moins un signal représentatif du processus de destruction ou de son résultat immédiat avec d'autres signaux du dispositif de coupe ou de tri.
  18. Dispositif selon la revendication 17, caractérisé en ce que le signal représentatif du processus de destruction est corrélé avec le signal d'une barrière photo-électrique (11) disposée en amont des cylindres à couteaux (12, 13).
EP89121238A 1988-12-23 1989-11-16 Méthode et dispositif pour la surveillance automatique de la destruction de feuilles minces Expired - Lifetime EP0374481B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3843602 1988-12-23
DE3843602A DE3843602A1 (de) 1988-12-23 1988-12-23 Verfahren bzw. vorrichtung zum automatischen ueberwachen der zerstoerung von duennem blattgut

Publications (3)

Publication Number Publication Date
EP0374481A2 EP0374481A2 (fr) 1990-06-27
EP0374481A3 EP0374481A3 (fr) 1994-08-03
EP0374481B1 true EP0374481B1 (fr) 1996-02-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP89121238A Expired - Lifetime EP0374481B1 (fr) 1988-12-23 1989-11-16 Méthode et dispositif pour la surveillance automatique de la destruction de feuilles minces

Country Status (7)

Country Link
US (1) US5039020A (fr)
EP (1) EP0374481B1 (fr)
JP (1) JP2884247B2 (fr)
AT (1) ATE134532T1 (fr)
DE (2) DE3843602A1 (fr)
ES (1) ES2083372T3 (fr)
HK (1) HK1007699A1 (fr)

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EP0565112A2 (fr) * 1992-04-10 1993-10-13 GAO Gesellschaft für Automation und Organisation mbH Procédé de contrôle de fonctionnement de destructeurs mécaniques de papier
US5772129A (en) * 1994-08-31 1998-06-30 Ricoh Elemex Corporation Process and apparatus for controlling the cutter of a shredder
US5945602A (en) * 1996-12-18 1999-08-31 Ncr Corporation Apparatus for monitoring a self-service transaction terminal
WO2002072270A1 (fr) 2001-03-13 2002-09-19 Giesecke & Devrient Gmbh Dispositif et procede d'invalidation de produits en feuilles

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DE4103950C1 (fr) * 1991-02-09 1992-04-23 Geha-Werke Gmbh, 3000 Hannover, De
JPH0568907A (ja) * 1991-03-13 1993-03-23 Riso Kagaku Corp 紙葉類情報廃棄処理装置
JPH0583499A (ja) * 1991-03-13 1993-04-02 Riso Kagaku Corp 紙葉類情報廃棄処理装置
DE4413079A1 (de) * 1994-04-15 1995-10-19 Schleicher & Co Int Schalteinrichtung zum Schalten eines Schneidwerk-Antriebes eines zerkleinernden Dokumentenvernichters
IT1269814B (it) * 1994-05-20 1997-04-15 Service Point Srl Apparecchiatura per triturare oggetti di piccola taglia,in particolare mozziconi di sigarette
AU7205094A (en) * 1994-06-06 1996-01-04 Irwin Research & Development Inc. An improved apparatus for comminuting solid waste materials
US5836527A (en) * 1994-06-06 1998-11-17 Irwin Research & Development Apparatus for comminuting solid waste materials
DE19516569B4 (de) * 1995-05-05 2009-04-23 TRüTZSCHLER GMBH & CO. KG Vorrichtung zum Abscheiden von Fremdstoffen, z. B. metallischer Verunreinigungen, aus einer Fasertransportstrecke in der Spinnereivorbereitung
US5922959A (en) * 1996-10-15 1999-07-13 Currency Systems International Methods of measuring currency limpness
US5860607A (en) * 1997-01-08 1999-01-19 Irwin Research & Development, Inc. Apparatus for comminuting waste materials having screw delivery features
US5893523A (en) * 1997-06-13 1999-04-13 Irwin Research & Development, Inc. Apparatus for comminuting waste materials having feed roll delivery features
WO1999027488A1 (fr) * 1997-11-25 1999-06-03 Currency Systems International Destruction commerciale de billets de banque
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Also Published As

Publication number Publication date
EP0374481A3 (fr) 1994-08-03
DE3843602A1 (de) 1990-07-05
DE58909611D1 (de) 1996-04-04
JP2884247B2 (ja) 1999-04-19
ES2083372T3 (es) 1996-04-16
JPH02214550A (ja) 1990-08-27
US5039020A (en) 1991-08-13
ATE134532T1 (de) 1996-03-15
EP0374481A2 (fr) 1990-06-27
HK1007699A1 (en) 1999-04-23

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