EP0193497B1 - Wagon à déchargement par gravité à plusieurs compartiments ayant chacun leur mécanisme de déchargement - Google Patents

Wagon à déchargement par gravité à plusieurs compartiments ayant chacun leur mécanisme de déchargement Download PDF

Info

Publication number
EP0193497B1
EP0193497B1 EP86830029A EP86830029A EP0193497B1 EP 0193497 B1 EP0193497 B1 EP 0193497B1 EP 86830029 A EP86830029 A EP 86830029A EP 86830029 A EP86830029 A EP 86830029A EP 0193497 B1 EP0193497 B1 EP 0193497B1
Authority
EP
European Patent Office
Prior art keywords
hatches
car
opening
bilateral
reduction gear
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
EP86830029A
Other languages
German (de)
English (en)
Other versions
EP0193497A3 (en
EP0193497A2 (fr
Inventor
Pietro Miniotto
Ugo Rendo
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.)
SpA Casseforme Metalliche E Affini Sacma
Saem SRL
Sacma SpA
Original Assignee
SpA Casseforme Metalliche E Affini Sacma
Saem SRL
Sacma SpA
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 SpA Casseforme Metalliche E Affini Sacma, Saem SRL, Sacma SpA filed Critical SpA Casseforme Metalliche E Affini Sacma
Priority to AT86830029T priority Critical patent/ATE53354T1/de
Publication of EP0193497A2 publication Critical patent/EP0193497A2/fr
Publication of EP0193497A3 publication Critical patent/EP0193497A3/en
Application granted granted Critical
Publication of EP0193497B1 publication Critical patent/EP0193497B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D7/00—Hopper cars
    • B61D7/14—Adaptations of hopper elements to railways
    • B61D7/16—Closure elements for discharge openings
    • B61D7/24—Opening or closing means
    • B61D7/26—Opening or closing means mechanical

Definitions

  • Bulk cargos such as coal, gravel, sand cargos and the like are normally transported by rail in hopper cars; such cars are usually fitted with two separate bins for loading, while the discharge of the materials contained therein is effected by gravity through two large side hatches for each bin, wherein the hatches are opened by drive means into dump pits.
  • a further requirement relates to the necessity, in case of improper functioning of the drive and transmission means, of avoiding the unintentional open-- ing of a pair of hatches which are out of the discharge area at the same time of, or instead of the hatches whose opening has been operated.
  • a railway hopper car is known, corresponding to the first part of claim 1, with bilateral gravity discharge, comprising a container body having separate loading bins, each of these bins being provided with two openings on the opposite sides of the car, which may be closed by means of hatches hinged at their upper side, fitted with a plurality of locking hooks along the lower border; these hooks are fixedly carried by a shaft which is rotatively supported on the body of the car, which shaft can be rotated for unlocking the opening of the relative hatch by means of a mechanical transmission lever mechanism.
  • the operation for unlocking the hatch is effected operating the mechanism at the corner of the car near the hatch to be opened; this means that the operator has to walk around the car to open consecutively all the hatches for discharging the material contained in the car.
  • US-A 3 587 475 discloses a hopper car having doors which open in the bottom of the car, which are operated for the opening by means of selector mechanisms; these mechanism, however, are located on the two sides of the car, so that the operator must go around the car to set the selector of the doors to be opened; the doors are opened by pulling chains and are closed by gravity, without locking means, and no means is provided signalling the opening of the doors.
  • a railway hopper car with bilateral gravity discharge comprising a container body formed by two or more consecutive, separate loading bins, each of these bins being provided with two openings on the opposite sides of the car, which may be closed by means of hatches hinged at their upper side, each of the hatches being fitted with a plurality of locking hooks along the lower border, the hooks being fixedly carried by a shaft which is rotatively supported on the body of the car; the shafts carrying the locking hooks relative to the hatches of each of the loading bins being arranged to rotate, at choice, for unlocking the opening of the hatches by means of mechanical transmission lever mechanisms, characterized in that the mechanisms comprise a reduction gear of the irreversible type which is hand-controlled by means of shanks accessible from ground which are directly connected to the reduction gear and, in addition, by means of a handwheel which may be connected to the reduction gear through a mechanical transmission comprising a select
  • the lever mechanisms comprise a rocker keyed to the output or slow shaft of the reduction gear, at the ends of which there are hinged the extremities of two connecting rods which are, at the opposited extremities, hinged to two arms joined to the shafts carrying the locking hooks, wherein the rotation in one direction of the rocking lever is transmitted to the arms through the connecting rods, so as to cause rotation of the shafts in the sense suitable to disengage the locking hooks from the hatches, and in the opposite sense so as to cause the clamp of the hatches by means of the locking hooks.
  • the axis of the rocker intersects the action axis of both the connecting rods or is laying beyond the axis, in the closing direction.
  • the handwheel may be connected, through the selector and possible transmission shafts, to every reduction gear actuating the couple of hatches of each separate bin of the car; therefore, it is possible, by this way, to operate the opening of the selected couple of hatches by means of the handwheel itself.
  • At least one of the locking hooks of each hatch is provided with a hindering foot which projects upwards, beyond the edge of the hooks, and interfers with the opening path of the hatches when the hooks are in a first rotation position apt to free the hatches, the foot being free to rotate in the sense of the opening and rotationally blocked in the opposite sense, being capable in such rotation position of the hooks of non hindering the hatches from a free opening and at the same time, however, hindering them from a total closure movement, whereas a further rotation of the shafts carrying the locking hooks bears the hindering foot, or feet, out of the movement path of the hatches, thereby making their closing possible.
  • the means for driving the opening of the hatches consist of shaped arms fixedly joined to the shafts which carry the locking hooks, having at their ends rollers suitable to act against sliding blocks linked to the flanks of the hatches when the shafts are rotated in the opening sense beyond the unlocking point of the locking hooks and the hindering feet.
  • the means signalling the opening of the hatches consist of two flags for each couple of hatches, which can rotate between a position enclosed in the side shape of the car and a position projecting from same; the flags being rotationally driven by connecting rods and cranks actuated by a staff hinged to a swivelling block which by gravity maintains the flags projecting out of the car shape, there being provided an arm joined rotationally to the rocker, suitable to act on the swivelling block when the rocker is rotated into the closing position, beyond the intersection position of its rotational axis with the action axes of the connecting rods.
  • the selector is formed by a bilateral clutch which is rotationally joined, through a chain transmission or the like, to the handwheel and may be rotationally coupled, through a control lever, either with a corresponding clutch carried by a transmission shaft connected to a reduction gear relative to a couple of hatches located remote from the handwheel, or to a transmission shaft connected to a reduction gear relative to a couple of hatches located adjacent to the car head carrying the handwheel; the transmission shafts being independently supported by self-lubricating bushes carried by separate supporting elements and both being fixed to the car structure, so that the possible seizing of a bush may not bring the non selected shaft into rotation.
  • a hopper car is usually formed by a body 1 subdivided into two bins 2, 3 separated by a wall 4. Inside of the loading bins there is provided a prismatic element 5, whose contour is dash- lined in the figure, having two oblique surfaces suitable to convey the contained material towards the couples of hatches 6, 7, relative to the front bin 2 and the back bin 3 respectively, with reference to the control platform 8 of the car.
  • the hatches 6, 7 are hinged, adjacent to their upper side, to the body 1 of the car, as shown in figure 1 and their center of gravity is so provided that they may rest in closure position by effect of their own weight.
  • the clamp of the hatches 6,7 in the closure position capable of standing the thrust of the material contained in the car is assured by a plurality of locking hooks 9,9a, supported by shafts 10, located below the lower border of the hatches, at the two opposite sides of the car.
  • the opening of the hatches for enabling to discharge the material contained in one of the two bins 2,3 of the car, is caused by the thrust of the material itself which flows along the oblique flanks of the inner prismatic element 5 when the shafts 10, carrying the locking hooks 9,9a relative to the couple of hatches whose opening has been selected, are rotated of an angle sufficient to disengage the hooks 9,9a from the border of the hatches (see fig. 3 and 4).
  • Rotation of the shafts 10 is achieved by means of a drive group, as illustrated in figure 2 in schematic form and partially visible in transparence in figure 1, wherein the drive group is represented by thick lines whereas the external shape of the car is represented by thin lines; it comprises a handwheel 11 connected through a chain 12 to a selector 13 suitable to select the pair of hatches, in the front or back side, which are to be opened.
  • the drive group is represented by thick lines whereas the external shape of the car is represented by thin lines; it comprises a handwheel 11 connected through a chain 12 to a selector 13 suitable to select the pair of hatches, in the front or back side, which are to be opened.
  • the selector 13 may, in fact, connect the handwheel 11, through the gear wheels 15, 16 and a second transmission chain 17, to a shaft 18 that is in turn connected, through a bevel gears pair 19, to the input or quick shaft of a reduction gear 20 or to the cardanic transmission shaft 14, which is coupled, at the opposite end of the car, to a second bevel gears pair 19a and to a second reduction gear 20a.
  • the output shaft of the reduction gears 20 and 20a carries a rocker 21, at the ends of which are connected the shaped connecting rods 22, 23 which are pivoted at their end on the arms 24 joined to the shafts 10 carrying the hooks 9, 9a.
  • the locking hooks 9, arranged in middle position along the border of the hatches 6, 7 are shaped as shown in the left side of figure 3; the end locking hooks 9a are shaped as illustrated in the right portion of figure 3 and also in figures 4 and 5, and exhibit a projecting part which carries a pivot 28 about which the hindering foot 29 may swivel, being fitted with a counterweight 30 and resting against the stop pin 31.
  • the hindering foot 29 does not represent an obstacle to the hatches movement as it is free to swivel about the pivot 28 under the thrust of the hatches themselves, as shown by dot-and-dash line in the right part of fig. 4; in the closing phase of the hatches, under the action of their own weight, when the thrust produced by the flowing material is lowering, the hindering feet 29 blocks the hatches themselves in partial opening position, as shown by a dot-and-dash line in the left part of fig.
  • the input shafts to the reduction gears 20, 20a are besides connected with the shanks 32 for operation from earth, by which it is possible to carry out the operation of opening the hatches from earth; this operation is only possible when the selector 13 is in idle position, as the reduction gears 20, 20a are of the irreversible type, for example an endless screw, in order to prevent the handwheel 11 from being unvoluntarily brought into rotation by actuating the shanks 32, thus with danger of accident for a person casually staying on the platform in same moment.
  • the opening of the hatches is associated with a signal constituted by flags 33 which are projecting from the car shape, as shown in fig. 1 and 3, when the lever mechanisms for driving the hatches have been removed from their safety block position.
  • the closing position in fact, wherein the hooks 9, 9a lock the hatches, as shown in fig. 3, presents the rotation axis of the rocker 21 placed on the action axis of the connecting rods 22, 23 coupling the corresponding linking axes of the connecting rod itself with the rocker 21 and the arms 24.
  • the signalling flags 33 are carried by the supports 34 swivelling about the pivots 35; the supports 34 are also fitted with levers 36, one of which is connected with a staff 37, hinged to a heavy block 38, which is swivelling about the pivot 39.
  • a connecting rod 140 joins the ends of the levers 36, thus enabling a joined movement of the two flags 33 at both sides of the car.
  • the shafts 10 carry, in correspondence to the extremities of the hatches 6, 7, the shaped arms 43, having an end roller 44 suitable to act against the sliding blocks 45 linked to the flanks of the hatches 6, 7.
  • the shaft 55 is carried by the bush support 56 and is connected at its end with the cardanic shaft 14.
  • the bilateral coupling element 53 may be brought into the position of engagement with the frontal coupling 46 or with the frontal coupling 54, or maintained in a middle position, or "idle” position, through the lever 57 having three fixed stop positions which may be disengaged through the knob 58, as shown by dash-and-dot line in figure 7.
  • the selector 13 keeps the shaft 55 and the gear wheel 15 separated and independent; in this way, it is not possible that, in case of seizing of the self-lubricating bushes supporting the rotary elements, a non selected couple of hatches is also brought into rotation, as it would occur if the gear 15 were supported by bushes placed directly on the shaft 51, in case of seizing and blocking of the bushes.
  • the opening limiting rods 26, hinged at one end of the car structure, present a curvilinear shape; such a shape serves to establish a free space between the car wall and the surface of the rod 26 which is substantially larger than the maximum size of the transported material; this to the aim of assuring that possible material deposited on the surface of the rods may not remain closed, during unloading, between the same and the car, thus hindering a complete closing movement of the hatches.
  • a curvilinear conformation for the same above mentioned purpose, is provided for the arms 24 too, which, as they are also located in the area subject to material flowing, have not to be in condition of holding back some material against the car wall, what would hinder the hooks 9, 9a from their complete closing movement causing the clamp of the hatches.
  • the opening mechanism according to the present invention proves to be especially safe and reliable, besides economically convenient, since the transmissions and selection of the hatches to be opened are carried out at high speed, upstream to the reduction gears and consequently with low driving torques.
  • the car structure may be built according to the known art; it has, therefore, not to be described here in detail.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Feeding Of Articles To Conveyors (AREA)
  • Warehouses Or Storage Devices (AREA)
  • Braking Arrangements (AREA)
  • Loading Or Unloading Of Vehicles (AREA)
  • Power-Operated Mechanisms For Wings (AREA)

Claims (8)

1. Wagon-trémie pour chemin de fer comprenant des trémies séparées à déchargement bilatéral par gravité, comprenant une caisse de charge composée de deux ou plus de deux compartiments de chargement séparés successifs, chacun de ces compartiments étant muni de deux ouvertures situées sur les deux côtés opposés du wagon, qui peuvent être fermées à l'aide de portes qui sont articulées au niveau de leur bord supérieur, chacune des portes étant équipée d'une multitude de crochets de verrouillage le long de leur encadrement inférieur, les crochets étant montés solidairement sur un arbre qui est monté rotatif sur la caisse du wagon; les arbres qui portent les crochets de verrouillage des portes de chacun des compartiments de chargement étant agencés pour tourner sélectivement pour déverrouiller l'ouverture des portes, sous l'action de mécanismes à leviers de transmission mécaniques, caractérisé en ce que les mécanismes comprennent un réducteur du type irréversible qui est commandé à la main à l'aide d'arbres accessibles du sol, qui sont directement accouplés au réducteur et, en outre, à l'aide d'un volant qui peut être accouplé au réducteur par un mécanisme de transmission comprenant un sélecteur capable d'accoupler en rotation au volant le réducteur qui correspond à la paire de portes dont l'ouverture a été sélectionnée, les crochets de verrouillage étant munis de moyens capables d'interdire la fermeture spontanée totale des portes par gravité; cependant qu'il est prévu en outre des moyens qui peuvent être actionnés par l'intermédiaire du réducteur, à l'aide des arbres ou du volant pour déterminer l'ouverture commandée des portes, et ainsi que des moyens servant à signaler l'ouverture de la paire de portes sélectionnées, qui sont actionnés par les mécanismes à leviers de transmission mécaniques.
2. Wagon-trémie de chemin de fer équipé de trémies séparées à déchargement bilatéral par gravité selon la revendication précédente, caractérisé en ce que les mécanismes à leviers comprennent un balancier claveté sur l'arbre de sortie ou arbre lent du réducteur, et aux extrémités duquel sont articulées les extrémités de deux bielles qui sont articulées à leurs extrémités opposées sur deux bras solidaires des arbres qui portent les crochets de verrouillage, dans lequel la rotation du balancier dans un sens est transmise aux bras par l'intermédiaire des bielles de façon à provoquer la rotation des arbres dans le sens approprié pour dégager les crochets de verrouillage des portes et dans le sens opposé pour provoquer le blocage des portes à l'aide des crochets de verrouillage.
3. Wagon-trémie de chemin de fer équipé de trémies séparées à déchargement bilatéral par gravité selon les revendications précédentes, caractérisé en ce que l'axe du balancier coupe la droite d'action de chacune des bielles ou se trouve au-delà de cette droite dans le sens de la fermeture.
4. Wagon-trémie de chemin de fer équipé de trémies séparées à déchargement bilatéral par gravité selon les revendications précédentes, caractérisé en ce que le volant peut être accouplé, par l'intermédiaire du sélecteur et éventuellement d'arbres de transmission, à chaque réducteur qui actionne la paire de portes de chacun des compartiments séparés du wagon.
5. Wagon-trémie de chemin de fer équipé de trémies séparées à déchargement bilatéral par gravité selon les revendications précédentes, caractérisé en ce qu'au moins un des crochets de verrouillage de chaque porte est muni d'un pied d'interdiction qui fait saillie vers le haut, au-delà du bord des crochets, et qui se place sur la trajectoire d'ouverture des portes lorsque les crochets sont dans une première position de rotation adaptée pour libérer les portes, le pied étant libre de tourner dans le sens de l'ouverture et étant bloqué en rotation dans le sens opposé, de sorte que, dans cette position de rotation des crochets, il n'empêche pas les portes de s'ouvrir librement et, en même temps, de les empêcher de décrire leur trajectoire de fermeture complète, tandis qu'une rotation additionnelle des arbres qui portent les crochets de verrouillage écarte le ou les pieds d'interdiction de la trajectoire des portes, en rendant ainsi leur fermeture possible.
6. Wagon-trémie de chemin de fer équipé de trémies séparées à déchargement bilatéral par gravité selon les revendications précédentes, caractérisé en ce que les moyens qui commandent l'ouverture des portes sont composés de bras en forme fixés solidairement aux arbres qui portent les crochets de verrouillage, ces bras portant à leurs extrémités des galets appropriés pour agir sur des glissières montées sur les côtés des portes lorsqu'on fait tourner les arbres dans le sens de l'ouverture au-delà du point de déverrouillage des crochets de verrouillage et des pieds d'interdiction.
7. Wagon-trémie de chemin de fer équipé de trémies séparées à déchargement bilatéral par gravité selon les revendications précédentes, caractérisé en ce que les moyens qui signalent l'ouverture des portes sont composés, pour chaque paire de portes, de deux drapeaux qui peuvent tourner entre une position située dans les limites du profil latéral du wagon et une position qui fait saillie en dehors de ce profil; les drapeaux étant entraînés en rotation par des bielles et des manivelles actionnées par une tringle qui est articulée sur un bloc pivotant qui maintient les drapeaux en saillie en dehors du profil du wagon par gravité, cependant qu'il est prévu un bras articulé sur le balancier, et approprié pour agir sur le bloc pivotant lorsque le balancier est conduit par rotation à sa position de fermeture au-delà de la position d'intersection entre son axe de rotation et les droites d'action des bielles.
8. Wagon-trémie de chemin de fer équipé de trémies séparées à déchargement bilatéral par gravité selon les revendications précédentes, caractérisé en ce que le sélecteur est formé d'un accouplement bilatéral qui est accouplé au volant en rotation par l'intermédiaire d'une transmission à chaîne ou analogue, et qui peut être accouplé en rotation, à l'aide d'un levier de commande, soit à un accouplement correspondant porté par un arbre de transmission relié à un réducteur associé à une paire de portes situées à grande distance du volant, soit à un arbre de transmission relié à un réducteur qui correspond à une paire de portes situées à proximité du bout du wagon qui porte le volant; les arbres de transmission étant supportés indépendamment l'un de l'autre par des bagues auto-lubrifiantes portées par des éléments supports séparés, et qui sont toutes deux fixées à la structure du wagon, de sorte que le grippage éventuel d'une bague ne risque pas de provoquer la rotation de l'arbre qui n'a pas été sélectionné.
EP86830029A 1985-02-12 1986-02-11 Wagon à déchargement par gravité à plusieurs compartiments ayant chacun leur mécanisme de déchargement Expired - Lifetime EP0193497B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86830029T ATE53354T1 (de) 1985-02-12 1986-02-11 Eisenbahn-trichterwagen mit mehreren behaeltern mit je einer entladevorrichtung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT19475/85A IT1183245B (it) 1985-02-12 1985-02-12 Carro ferrcviario a tramoggia a piu'scomparti con comando di scarico separato
IT1947585 1985-02-12

Publications (3)

Publication Number Publication Date
EP0193497A2 EP0193497A2 (fr) 1986-09-03
EP0193497A3 EP0193497A3 (en) 1987-09-30
EP0193497B1 true EP0193497B1 (fr) 1990-06-06

Family

ID=11158333

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86830029A Expired - Lifetime EP0193497B1 (fr) 1985-02-12 1986-02-11 Wagon à déchargement par gravité à plusieurs compartiments ayant chacun leur mécanisme de déchargement

Country Status (5)

Country Link
EP (1) EP0193497B1 (fr)
AT (1) ATE53354T1 (fr)
DE (1) DE3671729D1 (fr)
ES (1) ES8700615A1 (fr)
IT (1) IT1183245B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI92665C (fi) * 1992-11-04 1994-12-27 Transtech Ltd Oy Katteensiirtomekanismi
CN103496373B (zh) * 2013-09-29 2017-01-04 中车长江车辆有限公司 两用漏斗车
CN111942413B (zh) * 2020-08-13 2023-05-23 中车齐齐哈尔车辆有限公司 石砟车的漏斗底门的手动启闭机构及石砟车

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE160913C (fr) * 1903-05-23
FR529809A (fr) * 1921-01-14 1921-12-07 Wagon trémie à déchargement automatique bi-latéral à portes à guichet
DE491984C (de) * 1928-03-06 1930-02-19 Linke Hofmann Busch Werke Akt Umschaltbare Kupplung fuer die Drehrichtungsaenderung von Antriebswellen zur Bedienung von Selbstentladerklappen oder Kastenkippern
DE2452047C2 (de) * 1974-11-02 1976-12-16 Waggon Union Gmbh Klappenverschluss fuer eisenbahngueterwagen
US3587475A (en) * 1968-12-27 1971-06-28 Eduardo M Damy Selectively actuated hopper car doors

Also Published As

Publication number Publication date
ES551781A0 (es) 1986-11-16
EP0193497A3 (en) 1987-09-30
IT8519475A0 (it) 1985-02-12
DE3671729D1 (de) 1990-07-12
EP0193497A2 (fr) 1986-09-03
IT1183245B (it) 1987-10-15
ES8700615A1 (es) 1986-11-16
ATE53354T1 (de) 1990-06-15

Similar Documents

Publication Publication Date Title
US3187684A (en) Rapid discharge hopper car
US2258988A (en) Refuse truck
US3396675A (en) Dual hopper outlet closure structure
US5261333A (en) Automated ballast door mechanism
US6405658B1 (en) Manual discharge door operating system for a hopper railcar
CA1070564A (fr) Mecanisme de verrouillage d'obturateur de wagon-tremie
EP0193497A2 (fr) Wagon à déchargement par gravité à plusieurs compartiments ayant chacun leur mécanisme de déchargement
US3314558A (en) System for automatically operating discharge doors of railway cars
US1763560A (en) Loading apparatus
US3459316A (en) Means for automatically operating bottom hopper discharge doors during travel of railway cars
MXPA05002137A (es) Cierre de puerta de vagon ferroviario.
US3515076A (en) Manual or trackway cam hopper car door operating mechanism
US4213725A (en) Double locking door latch mechanism for railway hopper cars
US2891487A (en) Hopper door locking mechanism
US3483830A (en) Selectively actuate clutch controlled toggle actuated railway hopper car doors
EP0054051B1 (fr) Garage a bicyclettes
CN209274594U (zh) 一种漏斗车侧门开闭系统
US4629386A (en) Railroad hopper car door opener
US2741194A (en) Operating mechanism for dumping door
AU741224B2 (en) Railway wagon discharge system
US3474920A (en) Operating mechanism for a vehicle discharge means
CN119898633B (en) Oil drum turning device
US3255713A (en) Dumping railway car
JPH07250530A (ja) ローンモアのキャッチャボックス
SU1678674A1 (ru) Устройство дл открывани и закрывани крышек разгрузочных люков бункерного вагона

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE FR GB LI

17P Request for examination filed

Effective date: 19861103

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE FR GB LI

17Q First examination report despatched

Effective date: 19880928

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB LI

REF Corresponds to:

Ref document number: 53354

Country of ref document: AT

Date of ref document: 19900615

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3671729

Country of ref document: DE

Date of ref document: 19900712

ET Fr: translation filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19910211

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19910211

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19910228

Ref country code: CH

Effective date: 19910228

Ref country code: BE

Effective date: 19910228

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19911031

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19911101

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19920211

GBPC Gb: european patent ceased through non-payment of renewal fee