EP0525142A1 - Spacing or lifting device. - Google Patents

Spacing or lifting device.

Info

Publication number
EP0525142A1
EP0525142A1 EP92903658A EP92903658A EP0525142A1 EP 0525142 A1 EP0525142 A1 EP 0525142A1 EP 92903658 A EP92903658 A EP 92903658A EP 92903658 A EP92903658 A EP 92903658A EP 0525142 A1 EP0525142 A1 EP 0525142A1
Authority
EP
European Patent Office
Prior art keywords
corner
sheets
wedge
sheet
contact
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
EP92903658A
Other languages
German (de)
French (fr)
Other versions
EP0525142B1 (en
Inventor
Paul Louis Joseph Tilman
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0525142A1 publication Critical patent/EP0525142A1/en
Application granted granted Critical
Publication of EP0525142B1 publication Critical patent/EP0525142B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F19/00—Hoisting, lifting, hauling or pushing, not otherwise provided for

Definitions

  • the present invention relates to a spacing device and more particularly to lifting per ⁇ putting aside or lifting parts and particularly when they have a very small space between the bearing faces.
  • spacers comprising jaws articulated by a jack; given the thickness that these jaws must have in order to withstand significant forces, these spacers can only be used if there is sufficient space between the two bearing faces. Due to their design, they only allow to lift small loads at the end of the hooks.
  • the following description of the invention relates to the case of its application for lifting parts; this is only a special case, the use of the device also being valid link, the use of the device also being valid for enlarging the distance between two neighboring elements.
  • the present invention consists of a device capable of both lifting heavy parts and usable even when the space between the support surfaces - the ground, for example, and the part to be lifted is small.
  • the operating principle of the device of the invention lies in driving a wedge between the two bearing surfaces, penetration being facilitated by the presence of two sliding surfaces.
  • Figure 1 is an elevational view of the device in its starting position, that is to say when it will be used to lift a part;
  • Figure 2 is a cross section of the device;
  • Figure 3 is an elevational view of the device when the elevation height of the part to be lifted is reached;
  • Figure 4 is a plan view.
  • the jack (4) and the sheets (2) and (3) are connected by means of connecting rods (7) and (8) which prevent the movement of the sheets under the thrust of the jack and on the other hand allow l 'deviates between 5 or the bringing together of said sheets one in relation to the other by rotation about the articulation pivots (9) (9'), (10) and (10 ').
  • the two sheets (2) and (3) are kept in permanent contact with the wedge (1), even when the device is inactive, by means of elements such as springs stretched between the pivots d 'articulation (10) and (11) and (10 1 ) and (11').
  • FIG. 2 which represents a cross section of the device f at the location of the articulation pivots (10) and (11); we can clearly see the corner (1) and the U-shaped sheets (2) and (3); the interior faces pianos dcsciit.es Liers are in 0 contact with the inclined plane faces of the corner.
  • -Article pivots are fixed to the wings of the sheets (10), (10 '), (11) and (11 1 ) to allow the rotation of the connecting rods, (7), (7') and (8) , (8 ') in the case shown.
  • the angle and the length of the corner can be determined according to the application.
  • the lifting force can reach 12 tonnes, but the invention also makes it possible to use other more powerful jacks or double-acting jacks.
  • the advancement of the corner can also be done mechanically with a screw.
  • the 2 sheets can be kept in contact with the wedge by springs fixed to the screws, but any other form of support can be provided, such as, for example, rubber rings.
  • the outer faces of the support plates can be striated or grooved to increase adhesion with the ground or the part to be lifted.
  • the spacing and more particularly lifting device, object of the present invention is thus essentially characterized in that it comprises an inner part in the form of a wedge, the two inclined faces of said wedge being covered each with a green U-shaped sheet whose inner face is in contact with the corresponding inclined face of the corner which it covers, a thrust system of the corner between the two direct sheets tion of the elements to be removed or the part to be lifted and means for connecting the sheets to the corner thrust system, comprising pivots for articulation of the sheet around an axis parallel to the plane of the inclined faces of the corner.
  • the device also comprises elastic means for holding the U-shaped sheets in contact with the inclined faces of the corner.
  • the wedge thrust system is constituted by a hydraulic cylinder; also according to the invention, the means for connecting the thrust system from the corner to the U-shaped sheets consist of connecting rods.
  • the elastic means for holding the U-shaped sheets in contact with the inclined fa ⁇ of the corner consist of springs, preferably fixed to the articulation pivots. sheets.
  • the articulation pivots of the upper sheet can be fixed either in the wings of the sheet, or in an integral housing and located above this sheet.
  • the U-shaped sheets can advantageously be extended by flat sections in the form of spouts, ensuring the protection of the corner during its movement.

Abstract

PCT No. PCT/BE92/00003 Sec. 371 Date Dec. 14, 1992 Sec. 102(e) Date Dec. 14, 1992 PCT Filed Feb. 11, 1992 PCT Pub. No. WO92/14674 PCT Pub. Date Sep. 3, 1992.Device comprising a wedge-shaped lower part; both sloped faces of the wedge are covered by a channel, the lower face of which is in contact with the corresponding sloped face of the wedge that it covers; the wedge is driven between the two channels toward the items to be separated or the work-piece to be lifted; the channels are linked to the driving system of the wedge by connecting rods comprising articulation pivots; elastic means maintain the channels in contact with the sloped faces of the wedge.

Description

DISPOSITIF D'ECARTEMENT OU DE LEVAGE SPREADING OR LIFTING DEVICE
La présente invention a pour objet un dispositif d ' écartement et plus spécialement de levage per¬ mettant d'écarter ou de soulever des pièces et particulièrement lorsqu'elles présentent un espace très réduit entre les faces d'appui.The present invention relates to a spacing device and more particularly to lifting per¬ putting aside or lifting parts and particularly when they have a very small space between the bearing faces.
A côté des leviers traditionnels utilisés pour écarter des éléments ou pour soulever des pièces, on connait des écarteurs comportant des mâchoires articulées par un vérin; étant donné l'épaisseur que ces mâchoires doivent avoir pour résister à des efforts importants, ces écarteurs ne sont uti¬ lisables que s'il existe un espace suffisant entre les deux faces d'appui. Vu leur conception, ils ne permettent de soulever que de faibles charges a l'extrémité des âchoires.Besides the traditional levers used to spread elements or to lift parts, there are known spacers comprising jaws articulated by a jack; given the thickness that these jaws must have in order to withstand significant forces, these spacers can only be used if there is sufficient space between the two bearing faces. Due to their design, they only allow to lift small loads at the end of the hooks.
La description qui va suivre de l'invention se rapporte au cas de son application pour soulever des pièces; il ne s'agit là que d'un cas particu¬ lier, l'usage du dispositif étant aussi valable lier, l'usage du dispositif étant aussi valable pour agrandir la distance entre deux éléments voisins.The following description of the invention relates to the case of its application for lifting parts; this is only a special case, the use of the device also being valid link, the use of the device also being valid for enlarging the distance between two neighboring elements.
La présente invention est constituée par un dis¬ positif capable à la fois de soulever des pièces lourdes et utilisable même lorsque l'espace en¬ tre les surfaces d'appui - le sol, par exemple, et la pièce à soulever est faible.The present invention consists of a device capable of both lifting heavy parts and usable even when the space between the support surfaces - the ground, for example, and the part to be lifted is small.
Le principe de fonctionnement du dispositif de l' -cinvention réside dans l'enfoncement d'un coin entre les deux surfaces d'appui, la pénétration étant facilitée par la présence de deux surfaces de glissement.The operating principle of the device of the invention lies in driving a wedge between the two bearing surfaces, penetration being facilitated by the presence of two sliding surfaces.
Les figures ci-après, données à titre purement in¬ dicatif et sans que les éléments soient à l'échel¬ le, représentent le dispositif de l'invention et permettent une compréhension aisée de la réalisa¬ tion et du fonctionnement.The figures below, given on a purely indicative basis and without the elements being on the scale, represent the device of the invention and allow an easy comprehension of the realization and the operation.
La figure 1 est une vue en élévation du disposi¬ tif dans sa position de départ, c'est-à-dire au moment où il va être utilisé pour soulever une pièce; la figure 2 esL une coupe transversale du dispositif; la figure 3 est une vue en élévation du dispositif lorsque la hauteur d'élévation de la pièce à soulever est atteinte; la figure 4 est une vue en plan.Figure 1 is an elevational view of the device in its starting position, that is to say when it will be used to lift a part; Figure 2 is a cross section of the device; Figure 3 is an elevational view of the device when the elevation height of the part to be lifted is reached; Figure 4 is a plan view.
Sur toutes les figures, les mêmes éléments sont si¬ gnalés par les mêmes repères.In all the figures, the same elements are si¬ gnalés by the same references.
Sur la figure 1, on distingue en (1) le coin qui constitue l 'élément central du dispositif; de part et d'autre du coin, en contact avec ses pièces pla¬ nes inclinées sont disposées deux tôles en U (2) et (3) dont les faces intérieures, planes elles aussi, servent de surfaces de glissement au coin; un moyen de poussée (4) du coin, par exemple un vé¬ rin Hydraulique, est disposé à l'arrière du coin pour assurer la pénétration de celui-ci dans l'es¬ pace situé entre le sol(5) et la pièce à soulever (6), espace dont la hauteur (e1) de départ est faible. Le vérin (4) et les tôles (2) et (3) sont reliés par l'intermédiaire de bielles (7) et (8) qui em¬ pêchent le déplacement des tôles sous la poussée du vérin et permettent d'autre part l'écarte ent 5ou le rapprochement desdites tôles l'une par rap- • port à l'autre pa rotation autour des pivots d'articulation (9) (9'), (10) et (10').In Figure 1, we distinguish in (1) the corner which constitutes the central element of the system; on either side of the corner, in contact with its inclined flat parts are arranged two U-shaped sheets (2) and (3) whose inner faces, also flat, serve as sliding surfaces at the corner; a pushing means (4) of the corner, for example a hydraulic cylinder, is disposed at the rear of the corner to ensure the penetration of the latter into the space located between the ground (5) and the part to be lifted (6), space whose starting height (e1) is low. The jack (4) and the sheets (2) and (3) are connected by means of connecting rods (7) and (8) which prevent the movement of the sheets under the thrust of the jack and on the other hand allow l 'deviates between 5 or the bringing together of said sheets one in relation to the other by rotation about the articulation pivots (9) (9'), (10) and (10 ').
Les deux tôles (2) et (3) sont maintenues en con- 0tact permanent avec le coin (1), même en situation de non-activité du dispositif, par l'intermédiaire d'éléments tels que des ressorts tendus entre les pivots d'articulation (10) et (11) et (101) et (11' ).The two sheets (2) and (3) are kept in permanent contact with the wedge (1), even when the device is inactive, by means of elements such as springs stretched between the pivots d 'articulation (10) and (11) and (10 1 ) and (11').
5La figure 2 qui représente une coupe transversale du disposit f à l'endroit des pivots d'articula¬ tion (10) et (11); on y distingue nettement le coin (1) et les tôles en U (2) et (3); les faces intérieures pianos dcsciit.es Lôles sont en contact 0avec les faces planes inclinées du coin. -Des pivots d'articulation sont fixés aux ailes des tôles (10), (10'), (11) et (111) pour permettre la ro¬ tation des bielles , (7), (7') et (8), (8') dans le cas représenté . tif de l'invention lorsque le vérin (4) a enfoncé le coin (1) dans l'espace - maintenant la hauteur e2 - entre le sol et la pièce à soulever; on cons¬ tate que le bec (15) du coin est sorti de son loge- ment entre les deux tôles, que la tôle (2) qui n' est pas en contact avec le sol s'est écartée de la tôle (3) sans que le contact entre les surfaces de glissement du coin et des tôles ait été rompu, gr⬠ce au jeu de la bielle (7) qui a permis les mouve- ents vers le haut de la tôle (2).5 FIG. 2 which represents a cross section of the device f at the location of the articulation pivots (10) and (11); we can clearly see the corner (1) and the U-shaped sheets (2) and (3); the interior faces pianos dcsciit.es Lôles are in 0 contact with the inclined plane faces of the corner. -Article pivots are fixed to the wings of the sheets (10), (10 '), (11) and (11 1 ) to allow the rotation of the connecting rods, (7), (7') and (8) , (8 ') in the case shown. tif of the invention when the jack (4) has driven the corner (1) into the space - maintaining the height e2 - between the ground and the part to be lifted; we see that the spout (15) in the corner is out of its housing between the two sheets, that the sheet (2) which is not in contact with the ground has moved away from the sheet (3) without the contact between the sliding surfaces of the corner and the sheets having been broken, thanks to the play of the connecting rod (7) which allowed the upward movements of the sheet (2).
Sur la figure 4 qui représente en plan le disposi¬ tif de l'invention dans la situation après levage correspondant à la figure 3 (bec coin sorti), on distingue à nouveau le bec (15) du coin, la tôleIn Figure 4 which shows in plan the disposi¬ tif of the invention in the situation after lifting corresponding to Figure 3 (corner beak out), there is again the beak (15) of the corner, the sheet
(2) reliée au vérin (4) par les bielles (7) et (7'). Lesdites bielles pouvant subir une rotation autour des pivots d'articulation (10) et (10') d'une part, (9) et (9' ) d'autre part.(2) connected to the jack (4) by the connecting rods (7) and (7 '). Said connecting rods being able to undergo rotation around the articulation pivots (10) and (10 ') on the one hand, (9) and (9') on the other hand.
La description de l'invention illustrée par les fi¬ gures ci-dessus permet de comprendre aisément le fonctionnement du dispositif.The description of the invention illustrated by the fi¬ gures above makes it easy to understand the operation of the device.
Sous la pression d'un vérin hydraulique, par ex¬ emple, d'une puissance de 5 tonnes, vérin simple effet avec ressort de rappel, actionné par une omr pe hydraulique- manuelle ou autre, le coin se de- place en écartant les deux tôles retenues par les bielles et s'introduit dans l'esoace réduit permet¬ tant le levage de l'appareil. Les deux tôles per¬ mettent l'élévation très précise de la pièce tout en évitant son déplacement latéral. Pour abaisser la pièce, il suffit de relâcher la pression du vé¬ rin : le coin se retire sous l'effet du ressort de rappel et les deux tôles se rapprochent.Under the pressure of a hydraulic cylinder, for example, with a power of 5 tonnes, single-acting cylinder with return spring, actuated by a hydraulic manual or other omr pe, the wedge moves away from the two sheets retained by the connecting rods and enters the reduced space allowing the lifting of the device. The two sheets per¬ put the very precise elevation of the part while avoiding its lateral displacement. To lower the part, it is enough to release the pressure of the cylinder: the wedge withdraws under the effect of the spring reminder and the two sheets come together.
L'angle et la longueur du coin peuvent être déter- minés en fonction de l'application.The angle and the length of the corner can be determined according to the application.
Avec un simple vérin de 5 tonnes, la force de le¬ vage peut atteindre 12 tonnes mais l'invention per¬ met également d'utiliser d'autres vérins plus puis- sants ou des vérins double effet.With a simple 5-ton jack, the lifting force can reach 12 tonnes, but the invention also makes it possible to use other more powerful jacks or double-acting jacks.
L'avancement du coin peut aussi se faire mécani¬ quement avec une vis. Entre les pivots qui main¬ tiennent les tôles d'appui aux bielles, les 2 tô- les peuvent être maintenues en contact avec le coin par des ressorts fixés aux vis mais on peut cependant prévoir toute autre forme de maintien comme, par exemple, des anneaux en caoutchouc.The advancement of the corner can also be done mechanically with a screw. Between the pivots which main¬ hold the support plates to the connecting rods, the 2 sheets can be kept in contact with the wedge by springs fixed to the screws, but any other form of support can be provided, such as, for example, rubber rings.
Les faces extérieures des tôles d'appui peuvent être striées ou rainurées pour en augmenter l'ad¬ hérence avec le sol ou la pièce à soulever.The outer faces of the support plates can be striated or grooved to increase adhesion with the ground or the part to be lifted.
Grâce à la description qui vient d'être faite du dispositif de l'invention, on peut maintenant en dégager plus aisément les caractéristiques.Thanks to the description which has just been made of the device of the invention, we can now more easily identify its characteristics.
Le dispositif d'écartement et plus particulière¬ ment de levage, objet de la présente invention, est ainsi caractérisé essentiellement en ce qu'il comporte une pièce intérieure en forme de coin, les deux faces inclinées dudit coin étant recou¬ verte chacune par une tôle en U dont la face in- térieure est en contact avec la face inclinée cor¬ respondante du coin qu'elle recouvre, un système de poussée du coin entre les deux tôles en direc- tion des éléments à écarter ou de la pièce à sou¬ lever et des moyens de liaison des tôles au sys¬ tème de poussée du coin, comportant des pivots d' articulation de la tôle autour d'un axe parallèle au plan des faces inclinées du coin. Suivant une réalisation avantageuse de l'invention, le dispo¬ sitif comporte également des moyens élastiques de maintien des tôles en U en contact avec les faces inclinées du coin.The spacing and more particularly lifting device, object of the present invention, is thus essentially characterized in that it comprises an inner part in the form of a wedge, the two inclined faces of said wedge being covered each with a green U-shaped sheet whose inner face is in contact with the corresponding inclined face of the corner which it covers, a thrust system of the corner between the two direct sheets tion of the elements to be removed or the part to be lifted and means for connecting the sheets to the corner thrust system, comprising pivots for articulation of the sheet around an axis parallel to the plane of the inclined faces of the corner. According to an advantageous embodiment of the invention, the device also comprises elastic means for holding the U-shaped sheets in contact with the inclined faces of the corner.
Selon une modalité préférentielle de l'invention, le système de poussée du coin est constitué par un vérin hydraulique; également suivant l'invention, les moyens de liaison du système de poussée du coin aux tôles en U sont constitués par des bielles.According to a preferred embodiment of the invention, the wedge thrust system is constituted by a hydraulic cylinder; also according to the invention, the means for connecting the thrust system from the corner to the U-shaped sheets consist of connecting rods.
Toujours suivant l'invention, les moyens élastiques de maintien des tôles en U en contact avec les fa¬ ces inclinées du coin sont constitués par des res¬ sorts, de préférence fixés aux pivots d'articula- tion. des tôles .Still according to the invention, the elastic means for holding the U-shaped sheets in contact with the inclined fa¬ of the corner consist of springs, preferably fixed to the articulation pivots. sheets.
Dans une variante intéressante du dispositif, les pivots d'articulation de la tôle supérieure peuvent être fixés soit dans les ailes de la tôle, soit dans un logement solidaire et situé au dessus de cette tôle.In an interesting variant of the device, the articulation pivots of the upper sheet can be fixed either in the wings of the sheet, or in an integral housing and located above this sheet.
Dans cette dernière disposition on assure un déplace¬ ment vertical de la tôle supérieure et donc de la charge. Les tôles en U peuvent avantageusement être prolongées par des tronçons plans en forme de becs, assurant la protection du coin lors de son déplacement. In this latter arrangement, a vertical displacement of the upper sheet and therefore of the load is ensured. The U-shaped sheets can advantageously be extended by flat sections in the form of spouts, ensuring the protection of the corner during its movement.

Claims

Revendications claims
1. Dispositif d ' écartement et plus particulièrement de levage, caractérisé en ce qu'il comporte :1. Spacing device and more particularly lifting device, characterized in that it comprises:
- Une pièce intérieure en forme de coin, les deux faces inclinées dudit coin étant recouverte chacune par' une tôJu on U dont la face intérieure est en contact avec la face inclinée correspondante du coin qu'elle recouvre,An inner piece in the form of a corner, the two inclined faces of said corner each being covered by a ' sheet on U, the inner face of which is in contact with the corresponding inclined face of the corner which it covers,
- Un système de poussée du coin entre les deux tô¬ les, en direction des éléments à écarter ou de la pièce à souleve .- A pushing system of the corner between the two sheets, in the direction of the elements to be removed or the part to be lifted.
- Des moyens de liaison des tôles au système de poussée du coin, comportant des pivots d'articula¬ tion de la tôle autour d'un axe parallèle au plan des faces inclinées du coin.- Means for connecting the sheets to the corner pushing system, comprising pivots for articulation of the sheet around an axis parallel to the plane of the inclined faces of the corner.
2. Dispositif suivant la revendication 1, carac¬ térisé en ce que les pivots d'articulation de la tôle autour d'un axe parallèle au plan des faces inclinées du coin sont fixés dans un logement soli¬ daire de la tôle situé au dessus de cette tôle.2. Device according to claim 1, charac¬ terized in that the articulation pivots of the sheet around an axis parallel to the plane of the inclined faces of the corner are fixed in a housing soli¬ daire of the sheet located above this sheet.
3. Dispositi f suivant l 'une ou l'autre des revendi¬ cations 1 et 2, caractérisé en ce que le système de poussée du co n est constitué par un vérin Hydrau¬ lique .3. Dispositi f according to one or the other of revendi¬ cations 1 and 2, characterized in that the thrust system of the co n is constituted by a hydraulic cylinder.
4. Dispositif suivant l'une ou l'autre des revendi- cations 1 à 3, caractérisé en ce que les tôles en U sont prolongées par des tronçons plats en forme de becs assurant la protection du coin lors de son déplacement 4. Device according to either of claims 1 to 3, characterized in that the U-shaped sheets are extended by flat sections in the form of beaks ensuring the protection of the corner during its movement
5. Dispositif suivant l'une ou l'autre des revendi¬ cations 1 à 4, caractérisé, en ce que les moyens de liaison du système de poussée du coin aux tôles en U sont constitués par des bielles.5. Device according to either of the claims 1 to 4, characterized in that the means for connecting the thrust system from the corner to the U-shaped sheets consist of connecting rods.
6. Dispositif suivant l'une ou l'autre des revendi¬ cations 1 à 5, caractérisé, en ce qu'il comporte des moyens élastiques de maintien des tôles en U en con¬ tact avec les faces inclinées du coin de préférence fixés aux pivots d'articulation des tôles. 6. Device according to either of claims 1 to 5, characterized in that it comprises elastic means for holding the U-shaped sheets in contact with the inclined faces of the corner preferably fixed to the articulation pivots of the sheets.
EP92903658A 1991-02-14 1992-02-11 Spacing or lifting device Expired - Lifetime EP0525142B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
BE9100143A BE1005571A3 (en) 1991-02-14 1991-02-14 Device for lifting or gap.
BE9100143 1991-02-14
PCT/BE1992/000003 WO1992014674A1 (en) 1991-02-14 1992-02-11 Spacing or lifting device

Publications (2)

Publication Number Publication Date
EP0525142A1 true EP0525142A1 (en) 1993-02-03
EP0525142B1 EP0525142B1 (en) 1995-08-09

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP92903658A Expired - Lifetime EP0525142B1 (en) 1991-02-14 1992-02-11 Spacing or lifting device

Country Status (7)

Country Link
US (1) US5374033A (en)
EP (1) EP0525142B1 (en)
AT (1) ATE126176T1 (en)
BE (1) BE1005571A3 (en)
DE (1) DE69203991T2 (en)
ES (1) ES2078031T3 (en)
WO (1) WO1992014674A1 (en)

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Also Published As

Publication number Publication date
DE69203991T2 (en) 1996-04-25
US5374033A (en) 1994-12-20
BE1005571A3 (en) 1993-11-09
DE69203991D1 (en) 1995-09-14
EP0525142B1 (en) 1995-08-09
ATE126176T1 (en) 1995-08-15
ES2078031T3 (en) 1995-12-01
WO1992014674A1 (en) 1992-09-03

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