EP0118068A1 - Discharge door for gable-bottom railway hopper wagon - Google Patents

Discharge door for gable-bottom railway hopper wagon Download PDF

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Publication number
EP0118068A1
EP0118068A1 EP84101705A EP84101705A EP0118068A1 EP 0118068 A1 EP0118068 A1 EP 0118068A1 EP 84101705 A EP84101705 A EP 84101705A EP 84101705 A EP84101705 A EP 84101705A EP 0118068 A1 EP0118068 A1 EP 0118068A1
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EP
European Patent Office
Prior art keywords
unloading
flap
saddle
unloading flap
longitudinal
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
EP84101705A
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German (de)
French (fr)
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EP0118068B1 (en
Inventor
Rolf Dipl.-Ing. Kramer
Günter Ahlborn
Henry Dipl.-Ing. Hübsch
Eberhard Filk
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.)
Waggon Union GmbH
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Waggon Union GmbH
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 Waggon Union GmbH filed Critical Waggon Union GmbH
Publication of EP0118068A1 publication Critical patent/EP0118068A1/en
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Publication of EP0118068B1 publication Critical patent/EP0118068B1/en
Expired legal-status Critical Current

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    • 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
    • B61D7/22—Sealing means thereof

Definitions

  • the invention relates to an unloading flap for railroad saddle floor self-unloading wagons, which is hinged on its upper longitudinal side by means of hinge joints to the car body of the self-unloading wagon, in the closing direction with its inside above and close to its longitudinal ends close to the frame of the unloading opening of the self-unloading wagon and close to the bottom the lower end of the saddle floor rests, the unloading flap being actuable by means of handlebar rods articulated on its longitudinal ends, and a flexurally and torsionally rigid longitudinal member being arranged in the unloading flap between the joints of the handlebar rods.
  • a bending and torsion-resistant longitudinal beam is arranged in the unloading flap at its lower end.
  • the joints of the handlebars are provided on the unloading flap at its longitudinal ends approximately in the area of the side member.
  • the handlebars close and unload the flap in the closed position. Due to inaccuracies in construction, welding delay, weather influences and deformations caused by the load, difficulties generally arise with regard to the sealing of the lower end of the unloading flap against the lower end of the saddle floor. Due to the torsionally stiff unloading flap at its lower end, which should lie sealingly against the lower end of the saddle floor near its side member designed as a box girder, gaps occurring above cannot be bridged by the above-mentioned defects.
  • the object of the present invention was to design unloading flaps of the type mentioned at the outset in such a way that a correct closing of the unloading flap is constantly ensured even in the case of inaccurate construction and dimensional deviations occurring during use.
  • this object is achieved in that the longitudinal member is at a distance from the lower end of the unloading flap. is arranged that the unloading flap is formed below the longitudinal beam towards its lower end with a tapering cross-section and in the region of its abutment at the lower end of the saddle base as an elastic stop seal.
  • the longitudinal member is arranged on the inside of the unloading flap and has a protrusion that protrudes against the saddle floor in the region of its largest cross section.
  • the unloading flap is protruded against the saddle floor over its entire length.
  • the unloading flap Due to the inventive design of the unloading flap, its lower end, which lies tightly against the saddle floor, is designed to be so elastic that inaccuracies in construction or dimensional deviations occurring during use can be compensated for by elastic deformation of the lower end of the unloading flap, and the unloading flap thus always lies tight against the saddle floor.
  • the protrusion against the saddle floor of the side member arranged on the inside of the unloading flap causes bridging of the cargo in this area of the loading space, so that the lower, elastic end of the unloading flap is not acted upon by excessive pressure of the cargo during use.
  • the railroad saddle floor self-unloading wagon has two unloading flaps 1 on each long side.
  • Each unloading flap 1 is articulated on its upper longitudinal side by means of hinge joints 2 to the car body 3 of the self-unloading vehicle and lies in the closed position with its inside at the top and close to its longitudinal ends tightly against the frame of the unloading opening of the self-unloading vehicle and at the bottom against the lower end of the saddle floor 4 .
  • the unloading flap has a joint 5 for the arrangement of handlebars 6, by means of which the unloading flap can be actuated.
  • the handlebars 6 are actuated via a mechanical or a hydraulic actuation system.
  • a flexurally and torsionally rigid longitudinal member 7 is arranged in the unloading flap 1 at a distance from its lower end.
  • the longitudinal member 7 is arranged on the inside of the unloading flap 1 and is box-shaped.
  • the longitudinal beam 7 has a projection 7a projecting against the saddle floor 4. Below the projection 7a, the longitudinal beam 7 tapers and with it the entire unloading flap 1 towards its lower end to form an elastic stop seal 8, which can be designed as a separate component or integrated into the unloading flap 1 or the longitudinal beam 7. With the elastic stop seal 8, the unloading flap 1 lies tight against the un in the closed state tere end of the saddle bottom 4.
  • the arrangement of the joints 5 in the region of the longitudinal beam 7 at the longitudinal ends of the unloading flap 1 ensures direct force introduction via the handlebars into the rigid region of the unloading flap 1 and thus enables a metered unloading of the cargo.
  • the unloading flap 1 is provided with a projection against the saddle floor 4 over its entire length.

Abstract

1. Discharge flap (1) for railway saddle-bottom selfdischarging wagons, which is pivotably secured at its upper longitudinal side by means of hinge-type articulations (2) to the wagon body (3) of the self-discharging wagon, and which in the closing position abuts with its inner side at the top and near to its longitudinal ends in sealing-tight manner against the frame of the discharge aperture of the self-discharging wagon and, at the bottom region, in sealing-tight manner against the lower end of the saddle bottom (4), the discharge flap (1) being operatable by means of link rods (6) pivotably attached to its longitudinal ends, and a longitudinal support member (7) resistant to bending and torsional forces being arranged between the articulations (5) of the link rods (6) in the discharge flap (1), with a spacing from the lower end of the discharge flap (1), characterized in that the payload space narrows in the region of a projection (7a) of the longitudinal support member (7), said projection projecting towards the saddle bottom, and that the lower end of the discharge flap (1) is constructed as a lip-form elastic sealing abutment element (8).

Description

Die Erfindung betrifft eine Entladeklappe für Eisenbahn-Sattelboden-Selbstentladewagen, die auf ihrer oberen Längsseite mittels Scharniergelenken an dem Wagenkasten des Selbstentladewagens gelenkig befestigt ist, in Schließrichtung mit ihrer Innenseite oben und nahe ihren Längsenden dicht gegen den Rahmen der Entladeöffnung des Selbstentladewagens unä unten dicht gegen das untere Ende des Sattelbodens anliegt, wobei die Entladeklappe mittels an ihren Längsenden angelenkten Lenkerstangen betätigbar ist und zwischen den Gelenken der Lenkerstangen in der Entladeklappe ein biege- und verwindungssteifer Längsträger angeordnet ist.The invention relates to an unloading flap for railroad saddle floor self-unloading wagons, which is hinged on its upper longitudinal side by means of hinge joints to the car body of the self-unloading wagon, in the closing direction with its inside above and close to its longitudinal ends close to the frame of the unloading opening of the self-unloading wagon and close to the bottom the lower end of the saddle floor rests, the unloading flap being actuable by means of handlebar rods articulated on its longitudinal ends, and a flexurally and torsionally rigid longitudinal member being arranged in the unloading flap between the joints of the handlebar rods.

Bei den bisher üblichen Entladeklappen für Eisenbahn-Sattelboden-Selbstentladewagen, die mittels Lenkerstangen betätigt werden, ist in der Entladeklappe an deren unterem Ende ein biege-und verwindungssteifer Längsträger angeordnet. Die Gelenke der Lenkerstangen sind an der Entladeklappe an deren Längsenden etwa im Bereich des Längsträgers vorgesehen. Das Schließen der Entladeklappe und deren Fixierung in der Schließstellung erfolgt durch die Lenkerstangen. Durch Bauungenauigkeiten, Schweißverzug, Witterungseinflüße und durch das Ladegut hervorgerufene Deformationen bedingt, treten in aller Regel Schwierigkeiten bezüglich der Abdichtung des unteren Endes der Entladeklappe gegen das untere Ende des Sattelbodens auf. Durch die an ihrem unteren Ende verwindungssteife Entladeklappe, die nahe ihres als Kastenträger ausgebildeten Längsträgers dichtend gegen das untere Ende des Sattelbodens anliegen soll, lassen sich durch oben genannte Mängel auftretende Spalte nicht überbrücken.In the previously customary unloading flaps for railroad saddle floor self-unloading wagons, which are actuated by means of handlebars, a bending and torsion-resistant longitudinal beam is arranged in the unloading flap at its lower end. The joints of the handlebars are provided on the unloading flap at its longitudinal ends approximately in the area of the side member. The handlebars close and unload the flap in the closed position. Due to inaccuracies in construction, welding delay, weather influences and deformations caused by the load, difficulties generally arise with regard to the sealing of the lower end of the unloading flap against the lower end of the saddle floor. Due to the torsionally stiff unloading flap at its lower end, which should lie sealingly against the lower end of the saddle floor near its side member designed as a box girder, gaps occurring above cannot be bridged by the above-mentioned defects.

Die Aufgabe vorliegender Erfindung bestand nun darin, Entladeklappen der eingangs genannten Art so zu gestalten, daß ein einwandfreies Schließen der Entladeklappe auch bei Bauungenauigkeiten und während des Einsatzes auftretenden Maßabweichungen ständig gewährleistet ist.The object of the present invention was to design unloading flaps of the type mentioned at the outset in such a way that a correct closing of the unloading flap is constantly ensured even in the case of inaccurate construction and dimensional deviations occurring during use.

Gemäß der Erfindung wird diese Aufgabe dadurch gelöst, daß der Längsträger mit Abstand zu dem unteren Ende der Entladeklappe. angeordnet ist, daß die Entladeklappe unterhalb des Längsträgers zu ihrem unteren Ende hin mit sich verjüngendem Querschnitt und im Bereich ihrer Anlage an dem unteren Ende des Sattelbodens als elastische Anschlagdichtung ausgebildet ist. Hierbei ist der Längsträger auf der Innenseite der Entladeklappe angeordnet und weist im Bereich seines größten Querschnitts einen gegen den Sattelboden regenden Vorsprung auf.According to the invention, this object is achieved in that the longitudinal member is at a distance from the lower end of the unloading flap. is arranged that the unloading flap is formed below the longitudinal beam towards its lower end with a tapering cross-section and in the region of its abutment at the lower end of the saddle base as an elastic stop seal. In this case, the longitudinal member is arranged on the inside of the unloading flap and has a protrusion that protrudes against the saddle floor in the region of its largest cross section.

Die Entladeklappe ist über ihre gesamte Länge mit Vorsprengung gegen den Sattelboden versehen.The unloading flap is protruded against the saddle floor over its entire length.

Durch die erfindungsgemäße Ausbildung der Entladeklappe wird deren unteres, gegen den Sattelboden dicht anliegendes Ende so elastisch ausgebildet, daß Bauungenauigkeiten oder während des Einsatzes auftretende Maßabweichungen durch elastische Verformung des unteren Endes der Entladeklappe ausgeglichen werden können und die Entladeklappe somit ständig dicht gegen den Sattelboden anliegt. Der gegen den Sattelboden ragende Vorsprung des auf der Innenseite der Entladeklappe angeordneten Längsträgers bewirkt in diesem Bereich des Laderaumes eine Brückenbildung des Ladegutes, so daß das untere, elastische Ende der Entladeklappe während des Einsatzes nicht durch übermäßigen Druck des Ladegutes beaufschlagt wird.Due to the inventive design of the unloading flap, its lower end, which lies tightly against the saddle floor, is designed to be so elastic that inaccuracies in construction or dimensional deviations occurring during use can be compensated for by elastic deformation of the lower end of the unloading flap, and the unloading flap thus always lies tight against the saddle floor. The protrusion against the saddle floor of the side member arranged on the inside of the unloading flap causes bridging of the cargo in this area of the loading space, so that the lower, elastic end of the unloading flap is not acted upon by excessive pressure of the cargo during use.

Einzelheiten der Erfindung sind in der Zeichnung erläutert.Details of the invention are explained in the drawing.

Es zeigen

  • Fig. 1 die Seitenansicht eines Eisenbahn-Sattelboden-Selbstentladewagens mit einer Entladeklappe gemäß der Erfinding,
  • Fig. 2 die Vorderansicht der Entladeklappe nach Fig. 1,
  • Fig. 3 einen Querschnitt durch die Entladeklappe nach Fig. 1.
Show it
  • 1 is a side view of a railroad saddle floor self-unloading wagon with an unloading flap according to the invention,
  • 2 shows the front view of the unloading flap according to FIG. 1,
  • 3 shows a cross section through the unloading flap according to FIG. 1.

Der Eisenbahn-Sattelboden-Selbstentladewagen weist auf jeder Längsseite zwei Entladeklappen 1 auf. Jede Entladeklappe 1 ist auf ihrer oberen Längsseite mittels Scharniergelenken 2 an dem Wagenkasten 3 des Selbstentladewagens gelenkig befestigt und liegt in Schließstellung mit ihrer Innenseite oben und nahe ihre Längsenden dicht gegen den Rahmen der Entladeöffnung des Selbstentladewagens und unten dicht gegen das untere Ende des Sattelbodens 4 an. An ihren Längsenden weist die Entladeklappe je ein Gelenk 5 für die Anordnung von Lenkerstangen 6 auf, mittels denen die Entladeklappe betätigbar ist. Die Betätigung der Lenkerstangen 6 erfolgt dabei über ein mechanisches oder ein hydraulisches Betätigungssystem.The railroad saddle floor self-unloading wagon has two unloading flaps 1 on each long side. Each unloading flap 1 is articulated on its upper longitudinal side by means of hinge joints 2 to the car body 3 of the self-unloading vehicle and lies in the closed position with its inside at the top and close to its longitudinal ends tightly against the frame of the unloading opening of the self-unloading vehicle and at the bottom against the lower end of the saddle floor 4 . At its longitudinal ends, the unloading flap has a joint 5 for the arrangement of handlebars 6, by means of which the unloading flap can be actuated. The handlebars 6 are actuated via a mechanical or a hydraulic actuation system.

Zwischen den Gelenken 5 ist in der Entladeklappe 1 mit Abstand zu deren unterem Ende ein biege- und verwindungssteifer Längsträger 7 angeordnet. Der Längsträger 7 ist dabei auf der Innenseite der Entladeklappe 1 angeordnet und kastenförmig ausgebildet.Between the joints 5, a flexurally and torsionally rigid longitudinal member 7 is arranged in the unloading flap 1 at a distance from its lower end. The longitudinal member 7 is arranged on the inside of the unloading flap 1 and is box-shaped.

Im Bereich seines größten Querschnitts weist der Längsträger 7 einen gegen den Sattelboden 4 ragenden Vorsprung 7a auf. Unterhalb des Vorsprungs 7a verjüngt sich der Längsträger 7 und mit diesem die gesamte Entladeklappe 1 zu ihrem unteren Ende hin zu einer elastischen Anschlagdichtung 8, die als separates Bauteil ausgebildet oder in die Entladeklappe 1 oder den Längsträger 7 integriert sein kann. Mit der elastischen Anschlagdichtung 8 liegt die Entladeklappe 1 in Schließzustand dicht gegen das untere Ende des Sattelbodens 4 an.In the area of its largest cross section, the longitudinal beam 7 has a projection 7a projecting against the saddle floor 4. Below the projection 7a, the longitudinal beam 7 tapers and with it the entire unloading flap 1 towards its lower end to form an elastic stop seal 8, which can be designed as a separate component or integrated into the unloading flap 1 or the longitudinal beam 7. With the elastic stop seal 8, the unloading flap 1 lies tight against the un in the closed state tere end of the saddle bottom 4.

Durch die Anordnung des Längsträgers 7 auf der Innenseite der Entladeklappe 1 und dessen Ausbildung mit dem Vorsprung 7a wird in Verbindung mit dem schrägen Sattelboden 4 im Bereich des Vorsprungs 7a eine Verengung des Laderaumes des Sattelboden-Selbstentladewagens gebildet, die beim Einfüllen des Ladegutes in diesem Bereich zu einer Brückenbildung des Ladegutes führt und dadurch eine übermäßige Belastung der Anschlagdichtung 8 durch das Ladegut verhindert. Die Anordnung der Gelenke 5 im Bereich des Längsträgers 7 an der Längsenden der Entladeklappe 1 gewährleistet eine direkte Krafteinleitung über die Lenkerstangen in den biegesteifen Bereich der Entladeklappe 1 und ermöglicht damit eine dosierte Entladung des Ladegutes.The arrangement of the longitudinal beam 7 on the inside of the unloading flap 1 and its formation with the projection 7a, in conjunction with the inclined saddle floor 4 in the region of the projection 7a, narrows the loading space of the self-unloading wagon floor, which occurs in this area when the cargo is filled leads to bridging of the load and thereby prevents excessive loading of the stop seal 8 by the load. The arrangement of the joints 5 in the region of the longitudinal beam 7 at the longitudinal ends of the unloading flap 1 ensures direct force introduction via the handlebars into the rigid region of the unloading flap 1 and thus enables a metered unloading of the cargo.

Die Entladeklappe 1 ist über ihre gesamte Länge mit Vorsprengung gegen den Sattelboden 4 versehen.The unloading flap 1 is provided with a projection against the saddle floor 4 over its entire length.

Claims (3)

1. Entladeklappe für Eisenbahn-Sattelboden-Selbstentladewagen, die auf ihrer oberen Längsseite mittels Scharniergelenken an dem Wagenkasten des Selbstentladewagens gelenkig befestigt ist, in Schließstellung mit ihrer Innenseite oben und nahe ihren Längsenden dicht gegen den Rahmen der Entladeöffnung des Selbstentladewagens und unten dicht gegen das untere Ende des Sattelbodens anliegt, wobei die Entladeklappe mittels an ihren Längsenden angelenkten Lenkerstangen betätigbar ist und zwischen den Gelenken der Lenkerstangen in der Entladeklappe ein biege- und verwindungssteifer Längsträger angeordnet ist, dadurch gekennzeichnet, daß der Längsträger (7) mit Abstand zu dem unteren Ende der Entladeklappe (1) angeordnet ist, daß die Entladeklappe (1) unterhalb des Längsträgers (7) zu ihrem unteren Ende hin mit sich verjüngendem Querschnitt und im Bereich ihrer Anlage an dem unteren Ende des Sattelbodens (4) als elastische Anschlagdichtung (8) ausgebildet ist.1. Unloading flap for railroad saddle-floor self-unloading wagons, which is hinged on its upper longitudinal side to the wagon body of the self-unloading wagon by means of hinge joints, in the closed position with its inside at the top and close to its longitudinal ends close to the frame of the unloading opening of the self-unloading wagon and at the bottom close to the lower The end of the saddle bottom abuts, the unloading flap being actuable by means of handlebar rods articulated on its longitudinal ends, and between the joints of the handlebars in the unloading flap a longitudinal member which is resistant to bending and torsion is arranged, characterized in that the longitudinal member (7) is spaced from the lower end of the Unloading flap (1) is arranged that the unloading flap (1) below the longitudinal member (7) towards its lower end with a tapering cross-section and in the region of its contact with the lower end of the saddle base (4) is designed as an elastic stop seal (8) . 2. Entladeklappe nach Anspruch 1, dadurch gekennzeichnet, daß der Längsträger (7) auf der Innenseite der Entladeklappe (1) angeordnet ist und im Bereich seines größten Querschnitts einen gegen den Sattelboden (4) ragenden Vorsprung (7a) aufweist.2. Unloading flap according to claim 1, characterized in that the longitudinal member (7) is arranged on the inside of the unloading flap (1) and in the region of its largest cross section has a projection (7a) projecting against the saddle floor (4). 3. Entladeklappe nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß die Entladeklappe (1) über ihre gesamte Länge mit Vorsprengung gegen den Sattelboden (4) versehen ist.3. unloading flap according to claims 1 and 2, characterized in that the unloading flap (1) is provided over its entire length with projection against the saddle floor (4).
EP84101705A 1983-03-04 1984-02-18 Discharge door for gable-bottom railway hopper wagon Expired EP0118068B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3307686 1983-03-04
DE19833307686 DE3307686A1 (en) 1983-03-04 1983-03-04 UNLOADING FLAP FOR RAILWAY, SADDLED FLOOR, SELF-UNLOADING CAR

Publications (2)

Publication Number Publication Date
EP0118068A1 true EP0118068A1 (en) 1984-09-12
EP0118068B1 EP0118068B1 (en) 1987-07-08

Family

ID=6192514

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84101705A Expired EP0118068B1 (en) 1983-03-04 1984-02-18 Discharge door for gable-bottom railway hopper wagon

Country Status (11)

Country Link
EP (1) EP0118068B1 (en)
CS (1) CS258467B2 (en)
DD (1) DD218592A5 (en)
DE (2) DE3307686A1 (en)
DK (1) DK157983C (en)
HU (1) HU189834B (en)
NO (1) NO158792C (en)
PL (1) PL246361A1 (en)
RO (1) RO88965A (en)
SU (1) SU1256696A3 (en)
YU (1) YU43839B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1726504A3 (en) * 2005-05-14 2007-12-05 ALSTOM LHB GmbH Railwagon or group of wagons of the same series of the self discharging type for the transport of heavy bulk material
CN104085404A (en) * 2014-07-24 2014-10-08 齐齐哈尔轨道交通装备有限责任公司 Railway open wagon chassis and bottom-opening door thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2989929A (en) * 1958-12-05 1961-06-27 Flowers Henry Fort Articulating gable-bottom cars
DE1206005B (en) * 1963-12-18 1965-12-02 Orenstein & Koppel Ag Flap lock for saddle bag wagon
DE2452047B1 (en) * 1974-11-02 1976-04-29 Waggon Union Gmbh FLAP CLOSURE FOR RAILWAY GOODS WAGONS

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1717757U (en) * 1954-12-30 1956-03-01 Orenstein & Koppel Ag FOUR AXLE BOGIE SADDLE CARRIAGE

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2989929A (en) * 1958-12-05 1961-06-27 Flowers Henry Fort Articulating gable-bottom cars
DE1206005B (en) * 1963-12-18 1965-12-02 Orenstein & Koppel Ag Flap lock for saddle bag wagon
DE2452047B1 (en) * 1974-11-02 1976-04-29 Waggon Union Gmbh FLAP CLOSURE FOR RAILWAY GOODS WAGONS

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1726504A3 (en) * 2005-05-14 2007-12-05 ALSTOM LHB GmbH Railwagon or group of wagons of the same series of the self discharging type for the transport of heavy bulk material
CN104085404A (en) * 2014-07-24 2014-10-08 齐齐哈尔轨道交通装备有限责任公司 Railway open wagon chassis and bottom-opening door thereof

Also Published As

Publication number Publication date
DK75184D0 (en) 1984-02-17
RO88965A (en) 1986-04-30
PL246361A1 (en) 1984-10-08
DK75184A (en) 1984-09-05
NO158792B (en) 1988-07-25
CS145784A2 (en) 1988-01-15
NO840809L (en) 1984-09-05
DE3307686A1 (en) 1984-09-06
DK157983B (en) 1990-03-12
YU43839B (en) 1989-12-31
NO158792C (en) 1988-11-02
HUT35588A (en) 1985-07-29
DD218592A5 (en) 1985-02-13
HU189834B (en) 1986-08-28
DK157983C (en) 1990-08-27
CS258467B2 (en) 1988-08-16
DE3464568D1 (en) 1987-08-13
EP0118068B1 (en) 1987-07-08
YU36284A (en) 1987-02-28
SU1256696A3 (en) 1986-09-07

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