EP0645189A1 - Improvements in earth mills for producing terracotta products - Google Patents
Improvements in earth mills for producing terracotta products Download PDFInfo
- Publication number
- EP0645189A1 EP0645189A1 EP94402133A EP94402133A EP0645189A1 EP 0645189 A1 EP0645189 A1 EP 0645189A1 EP 94402133 A EP94402133 A EP 94402133A EP 94402133 A EP94402133 A EP 94402133A EP 0645189 A1 EP0645189 A1 EP 0645189A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bearings
- bearing
- wedge
- crusher according
- shim
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/32—Adjusting, applying pressure to, or controlling the distance between, milling members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/42—Driving mechanisms; Roller speed control
Definitions
- the present invention relates to grinders such as those which are used to prepare the raw materials intended for the manufacture of ceramic products.
- mills operate by rolling, that is to say that they are constituted by two counter-rotating rolls between which is poured the material to be ground which will be used to manufacture, by molding or extrusion, the products.
- frets For this, two cylinders made of an abrasion resistant alloy are used. Generally these cylinders are called “frets”. These frets are driven, by any suitable means, in rotation in opposite directions.
- the object of the present invention is to overcome these drawbacks by proposing a system for adjusting the spacing of the frets such that the bearing surfaces are always in the same position, these surfaces being placed so as to be symmetrical with respect to the axis of the resultant of the forces: it follows that there is no longer any deformation, which constitutes considerable progress compared to known devices.
- the present invention relates to a mill by rolling between two hoops of raw materials intended for the manufacture of ceramic products of the type comprising two counter-rotating cylindrical hoops, each being carried by two bearings, the bearings of one of the frets being capable of sliding in a slide under the action of the thrust of a hydraulic cylinder while the bearings of the other hoop are immobilized, characterized in that the shims are shims with thickness variable, each consisting of two parts, each part having a vertical face in abutment against a bearing and an oblique face, the two oblique faces being parallel and in abutment against one another; one of the parts of the variable thickness shim being fixed and the other mobile and adjustable in height.
- the vertical bearing surfaces against the bearings and the oblique surfaces in contact are arranged symmetrically with respect to a horizontal plane containing the result of the forces acting on the hoops.
- the mill according to the invention comprises two hoops 1 and 2 which are cylinders made of a material resistant to wear.
- the shaft 1a of the hoop 1 is carried by two bearings 3 and the shaft 2a of the hoop 2 is carried by two bearings 4.
- These two shafts 1a and 2a are rotated in opposite directions by any suitable means, for example by two pulleys 5 and 6 driven by belts or the like.
- the bearings 3 and 4 are slidably mounted in two slides 7 formed in the frame 8 of the crusher.
- the bearings 3 are held by an adjustable stop 10 bearing against a vertical wall 7a integral with the slide 7 in which they can slide, which ensures by construction a parallelism perfect of this fret called in what follows the "fixed" fret.
- the two bearings 4 are subjected to the thrust of two hydraulic cylinders 12 which are identical and supplied by the same hydraulic pressure.
- This wedge 11 is a variable thickness wedge.
- it consists of two parts 11a and 11b which are supported one against the other.
- Each part has a flat vertical face in abutment against a bearing and an oblique face in abutment against the oblique face of the other part.
- the part 11a bears against the bearing 3 by a flat face 13 perpendicular to the axis of the slide 7; while the part 11b bears against the bearing 4 by a flat face 14 perpendicular to the axis of the slide 7.
- the oblique face 16 of the part 11a of the wedge 11 bears against the oblique face 15.
- the part 11a of the wedge 11 is coupled by a threaded core 17 to a micrometric screw 18 driven by a motor 19, the axis of the screw 12 being perpendicular to that of the slides 7.
- the part 11a of the wedge is therefore mobile, while the part 11b is fixed.
- its support against the part 11b is always made against the surface 15 which, for its part, is stationary: it therefore appears that the support surface is always in the same position.
- the parts 11a and 11b of the variable thickness shim are arranged so that the surfaces 13, 14 and 15 are crossed in their middle by the plane containing the axes of the shafts 1a and 2a and therefore containing the result of the forces applied. .
- the forces are always symmetrically distributed and no asymmetrical deformation is possible.
- the frets 1 and 2 are gradually brought closer to one another by lifting the part 11a from its low position to its high position.
- the shim 20 is removed and the part 11b is returned to the low position and it is gradually raised until it reaches the position shown in FIG. 4 which corresponds to the maximum wear of the hoops.
- the machine also includes grinding machines 21, 22 which are not described in more detail because they do not relate to the invention.
- Another advantage of the device which is the subject of the present invention over the previously known devices lies in the fact that the dimensions of the movable part 11a of the wedge 11 are not limited: the larger it is the greater the adjustment range and this without that the positions of the bearing surfaces 13, 14 or 15 are not modified.
- This horizontal slide arrangement eliminates all faults in the systems currently in use. But it also provides other advantages.
- each wedge 11 can have an electrical detection device for keeping each wedge 11 in contact against its bearing or the two parts of the wedge 11 of variable thickness. This makes it possible in the event of accidental introduction of a foreign body to send, as soon as the contact is interrupted, a signal revealing the passage of a foreign body and which can trigger the stopping of the motorization of the cylinders.
- the bearings 3 are held by the stop (s) 10 against a vertical wall 7a; but according to a variant, not shown, this wall 7a does not exist, the bearings 3 being held by the stops 10 directly in abutment against the flat face 13 of the shim with variable thickness or against an intermediate piece 13a, interposed between said face 13 and wedge 11.
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
- Rolling Contact Bearings (AREA)
Abstract
Description
La présente invention est relative à des broyeurs tels que ceux qui sont employés pour préparer les matières premières destinées à la fabrication de produits céramiques.The present invention relates to grinders such as those which are used to prepare the raw materials intended for the manufacture of ceramic products.
Ces broyeurs fonctionnent par laminage, c'est-à-dire qu'ils sont constitués par deux rouleaux contrarotatifs entre lesquels est déversée la matière à broyer qui servira à fabriquer, par moulage ou extrusion, les produits.These mills operate by rolling, that is to say that they are constituted by two counter-rotating rolls between which is poured the material to be ground which will be used to manufacture, by molding or extrusion, the products.
Il est nécessaire, pour avoir un produit fini de bonne qualité de réaliser un broyage par laminage très fin, c'est-à-dire après lequel ne subsiste aucune particule ayant une grosseur supérieure au millimètre.In order to have a good quality finished product, it is necessary to carry out very fine grinding by rolling, that is to say after which no particle having a size greater than one millimeter remains.
Pour cela, on emploie deux cylindres constitués d'un alliage résistant à l'abrasion. D'une façon générale ces cylindres sont appelés "frettes". Ces frettes sont entraînées, par tout moyen approprié, en rotation en sens inverse.For this, two cylinders made of an abrasion resistant alloy are used. Generally these cylinders are called "frets". These frets are driven, by any suitable means, in rotation in opposite directions.
Du fait des conditions de travail, les surfaces de ces frettes sont soumises à une usure intensive, usure qui n'est jamais parfaitement répartie ce qui conduit à des écarts de dimensions des particules broyées.Due to the working conditions, the surfaces of these hoops are subjected to intensive wear, wear which is never perfectly distributed, which leads to deviations in the dimensions of the ground particles.
On procède alors à une rectification des surfaces de ces frettes pour les ramener à la configuration géométrique d'un cylindre. Ces opérations de rectification étant fréquentes (car l'usure est importante), il est usuel de disposer de deux rectifieuses sur le bâti portant les frettes (une rectifieuse par frette) de sorte que l'on peut les rectifier sans avoir à les démonter.We then proceed to a rectification of the surfaces of these hoops to bring them back to the geometric configuration of a cylinder. These rectification operations are frequent (because there is significant wear), it is usual to have two grinders on the frame carrying the frets (one grinder per hoop) so that they can be rectified without having to dismantle them.
Les différentes rectifications et l'usure entraînent des modifications de la géométrie des cylindres qui conduisent à des ajustements fréquents de leur écartement.The different adjustments and wear lead to changes in the geometry of the cylinders which lead to frequent adjustments of their spacing.
Pour réaliser avec précision ces réglages de nombreux systèmes ont été développés tels que vis sans fin, écrous, leviers, balanciers ou autres.To achieve these adjustments with precision, many systems have been developed such as worms, nuts, levers, pendulums or others.
Il s'avère cependant, compte tenu de l'importance des masses en jeu et des efforts (50 à 150 tonnes selon les dimensions) que ces systèmes se déforment et n'assurent pas un parallélisme parfait des deux frettes.It turns out, however, given the importance of the masses involved and the forces (50 to 150 tonnes depending on the dimensions) that these systems deform and do not ensure perfect parallelism of the two frets.
Dans le brevet anglais 993.723 de 1963 aux noms de ROSE, DOWNS and THOMPSON et dans le brevet suisse 475.844 de 1967 aux noms des mêmes demandeurs, on a décrit un dispositif de réglage de l'écartement de deux frettes de laminage constituées par deux cales ayant soit une seule soit deux faces obliques prenant appui sur des faces obliques des carters portant les paliers des frettes, ces deux cales étant disposées symétriquement de part et d'autre de l'axe de la résultante des efforts auxquels sont soumis lesdits paliers des frettes et étant attelées l'une à l'autre par une vis sans fin de façon à pouvoir être rapprochées ou écartées l'une de l'autre.In the English patent 993,723 of 1963 in the names of ROSE, DOWNS and THOMPSON and in the Swiss patent 475,844 of 1967 in the names of the same applicants, there has been described a device for adjusting the spacing of two rolling frets constituted by two shims having either a single or two oblique faces bearing on oblique faces of the casings carrying the bearings of the frets, these two wedges being arranged symmetrically on either side of the axis of the resultant of the forces to which said bearings of the frets are subjected and being coupled to each other by an endless screw so that they can be moved towards or apart from each other.
Ces mécanismes ne sont efficaces qu'en théorie parce que dans la pratique il s'avère que les surfaces d'appui des cales ne sont jamais dans la même position par rapport à l'axe de la résultante des forces ce qui, du fait de l'importance considérable des forces en jeu amène des déformations et qui plus est des déformations irrégulières.These mechanisms are only effective in theory because in practice it turns out that the bearing surfaces of the wedges are never in the same position relative to the axis of the resultant of forces which, due to the considerable importance of the forces at play brings about deformations and what is more irregular deformations.
La présente invention a pour objet de pallier ces inconvénients en proposant un système de réglage de l'écartement des frettes tel que les surfaces d'appui soient toujours dans la même position, ces surfaces étant placées de façon à être symétriques par rapport à l'axe de la résultante des efforts : il en résulte qu'il n'y a plus alors aucune déformation, ce qui constitue un progrès considérable par rapport aux dispositifs connus.The object of the present invention is to overcome these drawbacks by proposing a system for adjusting the spacing of the frets such that the bearing surfaces are always in the same position, these surfaces being placed so as to be symmetrical with respect to the axis of the resultant of the forces: it follows that there is no longer any deformation, which constitutes considerable progress compared to known devices.
La présente invention concerne un broyeur par laminage entre deux frettes de matières premières destinées à la fabrication de produits céramiques du type comportant deux frettes cylindriques contrarotatives, chacune étant portée par deux paliers, les paliers d'une des frettes étant susceptibles de coulisser dans une glissière sous l'action de la poussée d'un vérin hydraulique tandis que les paliers de l'autre frette sont immobilisés, caractérisé par le fait que les cales sont des cales à épaisseur variable, chacune étant constituée en deux parties, chaque partie ayant une face verticale en appui contre un palier et une face oblique, les deux faces obliques étant parallèles et en appui l'une contre l'autre ; l'une des parties de la cale à épaisseur variable étant fixe et l'autre mobile et réglable en hauteur.The present invention relates to a mill by rolling between two hoops of raw materials intended for the manufacture of ceramic products of the type comprising two counter-rotating cylindrical hoops, each being carried by two bearings, the bearings of one of the frets being capable of sliding in a slide under the action of the thrust of a hydraulic cylinder while the bearings of the other hoop are immobilized, characterized in that the shims are shims with thickness variable, each consisting of two parts, each part having a vertical face in abutment against a bearing and an oblique face, the two oblique faces being parallel and in abutment against one another; one of the parts of the variable thickness shim being fixed and the other mobile and adjustable in height.
De préférence, les surfaces verticales d'appui contre les paliers et les surfaces obliques en contact sont disposées symétriquement par rapport à un plan horizontal contenant la résultante des forces agissant sur les frettes.Preferably, the vertical bearing surfaces against the bearings and the oblique surfaces in contact are arranged symmetrically with respect to a horizontal plane containing the result of the forces acting on the hoops.
A titre d'exemple non limitatif et pour faciliter la compréhension de l'invention, on a représenté aux dessins annexés :
- Figure 1, une vue schématique en élévation latérale et coupe selon B-B de la figure 2, d'un mode de réalisation de l'invention;
- Figure 2, une vue en plan avec coupe selon A-A de la figure 1 du dispositif de la figure 1;
- Figure 3, une vue partielle de la figure 1, à échelle agrandie illustrant la position de la cale lorsque les frettes sont neuves;
- Figure 4, la même vue que la figure 3 lorsque les frettes sont usées.
- Figure 1, a schematic side elevational view in section along BB of Figure 2, of an embodiment of the invention;
- Figure 2, a plan view with section along AA of Figure 1 of the device of Figure 1;
- Figure 3, a partial view of Figure 1, on an enlarged scale illustrating the position of the wedge when the frets are new;
- Figure 4, the same view as Figure 3 when the hoops are worn.
En se reportant à ces figures, on voit que le broyeur selon l'invention comporte deux frettes 1 et 2 qui sont des cylindres constitués d'un matériau résistant à l'usure. L'arbre la de la frette 1 est porté par deux paliers 3 et l'arbre 2a de la frette 2 est porté par deux paliers 4. Ces deux arbres 1a et 2a sont entraînés en rotation en sens opposé par tout moyen approprié, par exemple par deux poulies 5 et 6 entraînées par des courroies ou analogue.Referring to these figures, it can be seen that the mill according to the invention comprises two
Les paliers 3 et 4 sont montés à coulissement dans deux glissières 7 ménagées dans le bâti 8 du broyeur.The
Les paliers 3 sont maintenus par une butée réglable 10 en appui contre une paroi verticale 7a solidaire de la glissière 7 dans laquelle ils peuvent coulisser, ce qui assure par construction un parallélisme parfait de cette frette appelée dans ce qui suivra la frette "fixe".The
Les deux paliers 4 sont soumis à la poussée de deux vérins hydrauliques 12 qui sont identiques et alimentés par la même pression hydraulique.The two
Selon l'invention, on dispose entre les paliers 3 de la frette 1 et les paliers 4 de la frette 2 une cale 11, cale qui permet de régler à volonté l'écartement entre lesdites frettes.According to the invention, there is between the
Cette cale 11 est une cale à épaisseur variable. Pour cela, elle est constituée de deux parties 11a et 11b qui sont en appui l'une contre l'autre. Chaque partie a une face verticale plane en appui contre un palier et une face oblique en appui contre la face oblique de l'autre partie. Ainsi, la partie 11a prend appui contre le palier 3 par une face plane 13 perpendiculaire à l'axe de la glissière 7 ; tandis que la partie 11b prend appui contre le palier 4 par une face plane 14 perpendiculaire à l'axe de la glissière 7. La face oblique 16 de la partie 11a de la cale 11 prend appui contre la face oblique 15.This
La partie 11a de la cale 11 est attelée par un noyau fileté 17 à une vis micrométrique 18 entraînée par un moteur 19, l'axe de la vis 12 étant perpendiculaire à celui des glissières 7.The part 11a of the
La partie 11a de la cale est donc mobile, tandis que la partie 11b est fixe. Lorsque la partie 11a coulisse verticalement son appui contre la partie 11b se fait toujours contre la surface 15 qui, elle, est immobile : il en ressort donc que la surface d'appui est toujours dans la même position.The part 11a of the wedge is therefore mobile, while the
De plus, les parties 11a et 11b de la cale à épaisseur variable sont disposées de façon que les surfaces 13, 14 et 15 soient traversées en leur milieu par le plan contenant les axes des arbres 1a et 2a et contenant donc la résultante des forces appliquées. Ainsi les efforts sont toujours symétriquement répartis et aucune déformation dissymétrique n'est possible.In addition, the
Dans le cas où la course de la partie 11a n'est pas suffisante, une cale plate additionnelle 20 est interposée entre la face plane 14 de la partie 11b et le palier 4.In the event that the travel of part 11a is not sufficient, an additional
Comme on le voit sur la figure 2, il y a deux jeux de cales 11, un dans chaque glissière 7.As can be seen in FIG. 2, there are two sets of
Sur la figure 3, on a représenté les pièces dans la position qu'elles occupent lorsque les frettes 1 et 2 sont neuves avec mise en place de la cale additionnelle 20 et à la figure 4 celle qu'elles occupent lorsque les frettes 1 et 2 sont usées, la position de la figure 3 étant représentée en pointillé.In Figure 3, the parts are shown in the position they occupy when the
On voit qu'au fur et à mesure que les frettes 1 et 2 s'usent on peut les rapprocher l'une de l'autre en faisant monter progressivement la partie 11a de la cale 11 au moyen du moteur 19 et de la vis micrométrique 18.We see that as the
Lorsque l'on utilise une cale additionnelle telle que la cale 20, son épaisseur est égale à la distance parcourue par le palier 4 entre la position la plus basse et la position la plus haute de la partie mobile 11b de la cale 11.When an additional shim is used such as the
Ainsi, en partant de la position représentée à la figure 3, on rapproche progressivement l'une de l'autre les frettes 1 et 2 en soulevant la partie 11a depuis sa position basse jusqu'à sa position haute. Lorsque cette position est atteinte, on retire la cale 20 et on remet la partie 11b en position basse et on la soulève progressivement jusqu'à arriver dans la position représentée à la figure 4 qui correspond à l'usure maximum des frettes.Thus, starting from the position shown in FIG. 3, the
La machine comporte également des rectifieuses 21, 22 qui ne sont pas décrites plus en détail parce qu'elles ne concernent pas l'invention.The machine also includes
Un autre avantage du dispositif objet de la présente invention sur les dispositifs antérieurement connus réside dans le fait que les dimensions de la partie mobile 11a de la cale 11 ne sont pas limitées : plus elle est grande plus la plage de réglage est importante et cela sans que ne soient modifiées les positions des surfaces d'appui 13, 14 ou 15.Another advantage of the device which is the subject of the present invention over the previously known devices lies in the fact that the dimensions of the movable part 11a of the
Cette disposition à glissières horizontales élimine tous les défauts des systèmes actuellement en usage. Mais elle procure en outre d'autres avantages.This horizontal slide arrangement eliminates all faults in the systems currently in use. But it also provides other advantages.
Ces cales 11 sont pratiquement dans le plan de contact des deux frettes où se produit inévitablement un échauffement important. En choisissant de façon appropriée le matériau dont elles sont constituées et leurs dimensions en largeur et hauteur, on peut obtenir que leur dilatation compense le rapprochement des surfaces des deux frettes provoqué par leur dilatation.These
D'autre part, on peut disposer un dispositif de détection électrique de maintien en contact de chaque cale 11 contre son palier ou des deux parties de la cale 11 à épaisseur variable. Cela permet en cas d'introduction accidentelle d'un corps étranger d'envoyer, dès que le contact est interrompu, un signal révélant le passage d'un corps étranger et pouvant déclencher l'arrêt de la motorisation des cylindres.On the other hand, one can have an electrical detection device for keeping each
Dans l'exemple représenté, les paliers 3 sont maintenus par la ou les butées 10 contre une paroi verticale 7a ; mais selon une variante, non représentée, cette paroi 7a n'existe pas, les paliers 3 étant maintenus par les butées 10 directement en appui contre la face plane 13 de la cale à épaisseur variable ou contre une pièce intermédiaire 13a, interposée entre ladite face 13 et la cale 11.In the example shown, the
Claims (8)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9311557A FR2710555B1 (en) | 1993-09-29 | 1993-09-29 | Improvements to earth crushers intended for the manufacture of earthenware products. |
FR9311557 | 1993-09-29 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0645189A1 true EP0645189A1 (en) | 1995-03-29 |
EP0645189B1 EP0645189B1 (en) | 2001-07-25 |
Family
ID=9451337
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19940402133 Expired - Lifetime EP0645189B1 (en) | 1993-09-29 | 1994-09-26 | Improvements in earth mills for producing terracotta products |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0645189B1 (en) |
DE (1) | DE69427794T2 (en) |
ES (1) | ES2161746T3 (en) |
FR (1) | FR2710555B1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102974422B (en) * | 2012-12-11 | 2014-12-03 | 四川峨胜水泥集团股份有限公司 | Rolling machine limiter |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE43854C (en) * | A. WAGNER in Böblingen, Württemberg | Pivot bearings for roller axles | ||
US2158321A (en) * | 1937-06-08 | 1939-05-16 | Charles N Ford | Ore pulverizer |
GB993723A (en) * | 1963-06-11 | 1965-06-02 | Rose Downs & Thompson Ltd | Rolling equipment |
DE1227313B (en) * | 1958-12-13 | 1966-10-20 | Kloeckner Humboldt Deutz Ag | Roller crusher with overload protection |
CH475844A (en) * | 1966-08-31 | 1969-07-31 | Rose Downs & Thompson Ltd | Device for controlling the spacing of the rolls of a rolling mill, in particular of a flaking mill |
US3517531A (en) * | 1967-11-03 | 1970-06-30 | Gulf & Western Ind Prod Co | Rolling mill gage control actuator system |
US3684332A (en) * | 1971-03-29 | 1972-08-15 | Procter & Gamble | Apparatus for adjusting the center distance between bearing support members |
-
1993
- 1993-09-29 FR FR9311557A patent/FR2710555B1/en not_active Expired - Fee Related
-
1994
- 1994-09-26 ES ES94402133T patent/ES2161746T3/en not_active Expired - Lifetime
- 1994-09-26 EP EP19940402133 patent/EP0645189B1/en not_active Expired - Lifetime
- 1994-09-26 DE DE1994627794 patent/DE69427794T2/en not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE43854C (en) * | A. WAGNER in Böblingen, Württemberg | Pivot bearings for roller axles | ||
US2158321A (en) * | 1937-06-08 | 1939-05-16 | Charles N Ford | Ore pulverizer |
DE1227313B (en) * | 1958-12-13 | 1966-10-20 | Kloeckner Humboldt Deutz Ag | Roller crusher with overload protection |
GB993723A (en) * | 1963-06-11 | 1965-06-02 | Rose Downs & Thompson Ltd | Rolling equipment |
CH475844A (en) * | 1966-08-31 | 1969-07-31 | Rose Downs & Thompson Ltd | Device for controlling the spacing of the rolls of a rolling mill, in particular of a flaking mill |
US3517531A (en) * | 1967-11-03 | 1970-06-30 | Gulf & Western Ind Prod Co | Rolling mill gage control actuator system |
US3684332A (en) * | 1971-03-29 | 1972-08-15 | Procter & Gamble | Apparatus for adjusting the center distance between bearing support members |
Also Published As
Publication number | Publication date |
---|---|
FR2710555B1 (en) | 1995-11-24 |
ES2161746T3 (en) | 2001-12-16 |
DE69427794T2 (en) | 2002-04-25 |
FR2710555A1 (en) | 1995-04-07 |
DE69427794D1 (en) | 2001-08-30 |
EP0645189B1 (en) | 2001-07-25 |
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