EP0024577A1 - Oscillating drum for continuous blast cleaning of workpieces - Google Patents

Oscillating drum for continuous blast cleaning of workpieces Download PDF

Info

Publication number
EP0024577A1
EP0024577A1 EP80104559A EP80104559A EP0024577A1 EP 0024577 A1 EP0024577 A1 EP 0024577A1 EP 80104559 A EP80104559 A EP 80104559A EP 80104559 A EP80104559 A EP 80104559A EP 0024577 A1 EP0024577 A1 EP 0024577A1
Authority
EP
European Patent Office
Prior art keywords
jacket
drum
workpieces
longitudinal direction
turning
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
EP80104559A
Other languages
German (de)
French (fr)
Other versions
EP0024577B2 (en
EP0024577B1 (en
Inventor
Hans-Georg Ing.-Grad. Wodausch
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.)
Maschinen- und Werkzeugfabrik Kabel Vogel & Schemmann Ag
Original Assignee
Maschinen- und Werkzeugfabrik Kabel Vogel & Schemmann Ag
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6706597&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0024577(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Maschinen- und Werkzeugfabrik Kabel Vogel & Schemmann Ag filed Critical Maschinen- und Werkzeugfabrik Kabel Vogel & Schemmann Ag
Priority to AT80104559T priority Critical patent/ATE2879T1/en
Publication of EP0024577A1 publication Critical patent/EP0024577A1/en
Application granted granted Critical
Publication of EP0024577B1 publication Critical patent/EP0024577B1/en
Publication of EP0024577B2 publication Critical patent/EP0024577B2/en
Expired legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C3/00—Abrasive blasting machines or devices; Plants
    • B24C3/18—Abrasive blasting machines or devices; Plants essentially provided with means for moving workpieces into different working positions
    • B24C3/26—Abrasive blasting machines or devices; Plants essentially provided with means for moving workpieces into different working positions the work being supported by barrel cages, i.e. tumblers; Gimbal mountings therefor
    • B24C3/266—Abrasive blasting machines or devices; Plants essentially provided with means for moving workpieces into different working positions the work being supported by barrel cages, i.e. tumblers; Gimbal mountings therefor for continuously travelling workpieces

Definitions

  • the invention relates to a flow swivel drum, which is provided with an upper jacket opening, is inclined in the longitudinal direction and is pivotally mounted about its axis, for the continuous blasting of workpieces traveling through the drum in the longitudinal direction with the aid of centrifugal wheels.
  • Such a flow swivel drum as is known for example from DE-OS 24 24 086, is continuously swiveled between two limit positions during the blasting process.
  • the workpieces traveling through the flow swivel drum should not only slide longitudinally along the drum, but also rotate about themselves, so that they are struck on their entire surface by the blasting agent which is blown by the centrifugal wheels through the jacket opening in the drum is blasted. Practice shows that this turning around itself does not take place to the desired extent on all workpieces.
  • the invention seeks to remedy this.
  • the invention as characterized in the claims, solves the problem of equipping the flow swivel drum with a device which inevitably causes the workpieces in the drum to rotate about themselves brought about, at least significantly favored.
  • the workpieces sliding on the inside of the drum shell during its pivoting movement in the circumferential direction can only do this until they reach one of the turning stages.
  • the workpiece In the turning stage, the workpiece is initially held longer than it corresponds to the swivel angle of the drum shell; until the workpiece is rolled over when the swivel angle is increased further, which then lies against the inside of the swivel drum with another surface.
  • the part of the workpiece surface that faces the opening in the jacket and thus the blast wheels and is blasted changes at the turning stages at the latest every second swivel of the flow swivel drum.
  • the flow swivel drum shown in the figures has an inlet drum 1 in the longitudinal direction, followed by a jet drum 2 and then a sieve drum 3.
  • the flow swivel drum is - which is not shown in the drawing - inclined in the longitudinal direction, so that Workpieces during the swiveling of the flow swivel drum are conveyed in a natural way from the inlet of the inlet drum 1 to the outlet of the sieve drum 3.
  • the inlet drum 1 is narrowed towards the feed side in the manner of a funnel 4.
  • the inlet drum 1 has a flange ring 5 on the end face facing the blasting drum 2.
  • the sieve drum 3 also has a flange ring 6 on the end face facing the blasting drum 2; followed by a support ring 7 towards the outlet side.
  • the bottom of the screening drum 3 is largely designed like a screen 8.
  • a race 11 is provided on the outside of its jacket 10 on each end face of the blasting drum 2.
  • the race 11 on one end face is screwed to the flange ring 5 of the inlet drum 1, which on the other end face is screwed to the flange ring 6 of the screening drum 3 and the associated support ring 7 by means of screw bolts 12.
  • the bottom of the blasting drum 2 is provided with longitudinal openings 13.
  • a casing opening 14 is left open in the jacket 10, through which blasting media emerging from centrifugal wheels hit the workpieces transported, pivoted and turned in the blasting drum 2.
  • the jacket opening 14 is reinforced laterally in the region of its two side edges by an I-beam 15 each. Other reinforcements are possible.
  • the jacket 10 is provided on its side opposite the jacket opening 14 with a turning stage 16.
  • the turning stage 16 extends between the inner surfaces of the races 11. It can extend over the entire length of the blasting drum 2.
  • a turning bar can also be used as a turning stage or a turning edge can be provided.
  • the decisive factor is that when the jet drum 2 is pivoted to the turning stage, bar or edge, the workpieces do not simply slide further along the inner surface of the jacket 10 when the swivel angle is increased, but rather roll over, so that another part of their surface faces the jacket opening 14 , which ensures uniform irradiation of the workpieces.
  • the turning stage 16 is in the exemplary embodiment than in the shell 1 0 pushed outwardly formed in a substantially V-shaped groove.
  • One leg surface 17 of the turning stage 16 merges tangentially into the jacket 10; the other leg surface 18, which is substantially perpendicular to the first leg surface 17, merges into the jacket with a kink.

Abstract

1. A continuous pivot drum, which is provided with an upper jacket opening (14), is inclined in the longitudinal direction and is pivotably mounted about its axis, for the continuous radiation of workpieces passing through the drum in the longitudinal direction using fan blowers, characterised in that the jacket (10) is provided opposite ist jacket opening (14) with a turning stage (16) extending over the length of the jacket, which stage is formed as a substantially V-shaped channel which is externally pressed into the jacket (10), the surface of one of whose arms (17) passes tangentially into the jacket (10) and the other of whose arm surfaces (18), substantially perpendicular to the former, passes into the jacket (10) with a bend.

Description

Die Erfindung bezieht sich auf eine Fließ-Schwenktrommel, die mit einer oberen Mantelöffnung versehen, in Längsrichtung geneigt und um ihre Achse schwenkbar gelagert ist, für das kontinuierliche Strahlen von die Trommel in Längsrichtung durchwandernden Werkstücken mit Hilfe von Schleuderrädern.The invention relates to a flow swivel drum, which is provided with an upper jacket opening, is inclined in the longitudinal direction and is pivotally mounted about its axis, for the continuous blasting of workpieces traveling through the drum in the longitudinal direction with the aid of centrifugal wheels.

Eine solche Fließ-Schwenktrommel, wie sie beispielsweise aus der DE-OS 24 24 086 bekannt ist, wird während des Strahlvorgangs ständig zwischen zwei Grenzlagen geschwenkt. Dabei sollen die die Fließ-Schwenktrommel durchwandernden Werkstücke nicht nur in Längsrichtung entlang der Trommel gleiten, sondern auch sich um sich selbst drehen, "überschlagen", damit sie an ihrer gesamten Oberfläche von dem Strahlmittel getroffen werden, welches von den Schleuderrädern durch die Mantelöffnung in die Trommel abgestrahlt wird. Die Praxis zeigt, daß dieses Drehen um sich selbst nicht bei allen Werkstücken in dem gewünschten Maß erfolgt.Such a flow swivel drum, as is known for example from DE-OS 24 24 086, is continuously swiveled between two limit positions during the blasting process. The workpieces traveling through the flow swivel drum should not only slide longitudinally along the drum, but also rotate about themselves, so that they are struck on their entire surface by the blasting agent which is blown by the centrifugal wheels through the jacket opening in the drum is blasted. Practice shows that this turning around itself does not take place to the desired extent on all workpieces.

Die Erfindung will hier Abhilfe schaffen. Die Erfindung, wie sie in den Patentansprüchen gekennzeichnet ist, löst die Aufgabe, die Fließ-Schwenktrommel mit einer Vorrichtung auszustatten, die das Drehen der in der Trommel befindlichen Werkstücke um sich selbst zwangsläufig herbeiführt, zumindest wesentlich begünstigt.The invention seeks to remedy this. The invention, as characterized in the claims, solves the problem of equipping the flow swivel drum with a device which inevitably causes the workpieces in the drum to rotate about themselves brought about, at least significantly favored.

Bei der Erfindung können die innen an dem Trommelmantel während seiner Schwenkbewegung in Umfangsrichtung gleitenden Werkstücke dies nur so weit tun, bis sie an eine der Wendestufen gelangen. In der Wendestufe wird das Werkstück zunächst länger gehalten als es dem Schwenkwinkel des Trommelmantels entspricht; bis bei weiterem Vergrößern des Schwenkwinkels das Überschlagen des Werkstücks erfolgt, welches dann mit einer anderen Fläche innen an der Schwenktrommel anliegt. Der Teil der Werkstückoberfläche, der der Öffnung im Mantel und damit den Schleuderrädern zugewandt ist und gestrahlt wird, ändert sich an den Wendestufen spätestens bei jeder zweiten Schwenkung der Fließ-Schwenktrommel.In the invention, the workpieces sliding on the inside of the drum shell during its pivoting movement in the circumferential direction can only do this until they reach one of the turning stages. In the turning stage, the workpiece is initially held longer than it corresponds to the swivel angle of the drum shell; until the workpiece is rolled over when the swivel angle is increased further, which then lies against the inside of the swivel drum with another surface. The part of the workpiece surface that faces the opening in the jacket and thus the blast wheels and is blasted changes at the turning stages at the latest every second swivel of the flow swivel drum.

Ausgestaltungen und Weiterbildungen der Erfindung sind in den Unteransprüchen angegeben. Im folgenden wird die Erfindung anhand von lediglich einen Ausführungsweg darstellenden Zeichnungen näher erläutert. Es zeigt

  • Fig. 1 einen Längsschnitt durch eine Fließ-Schwenktrommel entlang der Schnittlinie C-D in Fig. 2 und
  • Fig. 2 einen Querschnitt durch die in Fig. 1 dargestellte Fließ-Schwenktrommel entlang der Schnittlinie A-B.
Refinements and developments of the invention are specified in the subclaims. The invention is explained in more detail below with the aid of drawings which illustrate only one embodiment. It shows
  • Fig. 1 shows a longitudinal section through a flow swivel drum along the section line CD in Fig. 2 and
  • Fig. 2 shows a cross section through the flow swivel drum shown in Fig. 1 along the section line AB.

Die in den Figuren dargestellte Fließ-Schwenktrommel weist in Längsrichtung eine Einlauftrommel 1, daran anschließend eine Strahltrommel 2 und wiederum daran anschließend eine Siebtrommel 3 auf. Die Fließ-Schwenktrommel ist - was in der Zeichnung nicht dargestellt ist - in Längsrichtung geneigt, so daß Werkstücke beim Schwenken der Fließ-Schwenktrommel auf natürliche Weise vom Eingang der Einlauftrommel 1 bis zum Ausgang der Siebtrommel 3 gefördert werden. Die Einlauftrommel 1 ist zur Aufgabeseite hin nach Art eines Trichters 4 verengt. An der der Strahltrommel 2 zugewandten Stirnseite weist die Einlauftrommel 1 einen Flanschring 5 auf. Auch die Siebtrommel 3 weist auf der der Strahltrommel 2 zugewandten Stirnseite einen Flanschring 6 auf; daran anschließend zur Auslaufseite hin einen Stützring 7. Der Boden der Siebtrommel 3 ist zum überwiegenden Teil nach Art eines Siebs 8 ausgebildet.The flow swivel drum shown in the figures has an inlet drum 1 in the longitudinal direction, followed by a jet drum 2 and then a sieve drum 3. The flow swivel drum is - which is not shown in the drawing - inclined in the longitudinal direction, so that Workpieces during the swiveling of the flow swivel drum are conveyed in a natural way from the inlet of the inlet drum 1 to the outlet of the sieve drum 3. The inlet drum 1 is narrowed towards the feed side in the manner of a funnel 4. The inlet drum 1 has a flange ring 5 on the end face facing the blasting drum 2. The sieve drum 3 also has a flange ring 6 on the end face facing the blasting drum 2; followed by a support ring 7 towards the outlet side. The bottom of the screening drum 3 is largely designed like a screen 8.

An jeder Stirnseite der Strahltrommel 2 ist außen an ihrem Mantel 10 ein Laufring 11 vorgesehen. Der Laufring 11 an der einen Stirnseite ist mit dem Flanschring 5 der Einlauftrommel 1, der an der anderen Stirnseite mit dem Flanschring 6 der Siebtrommel 3 sowie dem zugehörigen Stützring 7 mittels Schraubenbolzen 12 verschraubt. Der Boden der Strahltrommel 2 ist mit Längsdurchbrüchen 13 versehen. Im oberen Teil der Strahltrommel 2 ist in dem Mantel 10 eine Mantelöffnung 14 freigelassen, durch die von Schleuderrädern austretende Strahlmittel auf die in der Strahltrommel 2 transportierten, geschwenkten und gewendeten Werkstücke treffen. Seitlich ist die Mantelöffnung 14 im Bereich ihrer beiden Seitenkanten durch je einen I-Träger 15 verstärkt. Andere Verstärkungen sind möglich.A race 11 is provided on the outside of its jacket 10 on each end face of the blasting drum 2. The race 11 on one end face is screwed to the flange ring 5 of the inlet drum 1, which on the other end face is screwed to the flange ring 6 of the screening drum 3 and the associated support ring 7 by means of screw bolts 12. The bottom of the blasting drum 2 is provided with longitudinal openings 13. In the upper part of the blasting drum 2, a casing opening 14 is left open in the jacket 10, through which blasting media emerging from centrifugal wheels hit the workpieces transported, pivoted and turned in the blasting drum 2. The jacket opening 14 is reinforced laterally in the region of its two side edges by an I-beam 15 each. Other reinforcements are possible.

Der Mantel 10 ist auf seiner der Mantelöffnung 14 gegenüberliegenden Seite mit einer Wendestufe 16 versehen. Die Wendestufe 16 erstreckt sich im Ausführungsbeispiel zwischen den Innenflächen der Laufringe 11. Sie kann sich über die gesamte Länge der Strahltrommel 2 erstrecken. Als Wendestufe kann auch eine Wendeleiste oder eine Wendekante vorgesehen sein. Maßgebend ist, daß beim Schwenken der Strahltrommel 2 an die Wendestufe, -leiste oder -kante gelangende Werkstücke bei Vergrößerung des Schwenkwinkels nicht einfach entlang der Innenfläche des Mantels 10 weiterrutschen, sondern sich überschlagen, so daß ein anderer Teil ihrer Oberfläche der Mantelöffnung 14 zugewandt ist, was gleichmäßiges Bestrahlen der Werkstücke gewährleistet. Die Wendestufe 16 ist im Ausführungsbeispiel als in den Mantel 10 nach außen gedrückte im wesentlichen V-förmige Rinne ausgebildet. Die eine Schenkelfläche 17 der Wendestufe 16 geht tangential in den Mantel 10 über; die andere Schenkelfläche 18, die zu der ersten Schenkelfläche 17 im wesentlichen senkrecht steht, geht mit einem Knick in den Mantel über.The jacket 10 is provided on its side opposite the jacket opening 14 with a turning stage 16. In the exemplary embodiment, the turning stage 16 extends between the inner surfaces of the races 11. It can extend over the entire length of the blasting drum 2. A turning bar can also be used as a turning stage or a turning edge can be provided. The decisive factor is that when the jet drum 2 is pivoted to the turning stage, bar or edge, the workpieces do not simply slide further along the inner surface of the jacket 10 when the swivel angle is increased, but rather roll over, so that another part of their surface faces the jacket opening 14 , which ensures uniform irradiation of the workpieces. The turning stage 16 is in the exemplary embodiment than in the shell 1 0 pushed outwardly formed in a substantially V-shaped groove. One leg surface 17 of the turning stage 16 merges tangentially into the jacket 10; the other leg surface 18, which is substantially perpendicular to the first leg surface 17, merges into the jacket with a kink.

Claims (4)

1. Fließ-Schwenktrommel, die mit einer oberen Mantelöffnung (14) versehen, in Längsrichtung geneigt und um ihre Achse schwenkbar gelagert ist, für das kontinuierliche Strahlen von die Trommel in Längsrichtung durchwandernden Werkstücken mit Hilfe von Schleuderrädern, dadurch gekennzeichnet, daß der Mantel (10) seiner Mantelöffnung (14) gegenüberliegend mit mindestens einer über die Mantellänge sich erstreckenden Wendestufe (16) versehen ist.1. Flow swivel drum, which is provided with an upper jacket opening (14), is inclined in the longitudinal direction and is pivotable about its axis, for the continuous blasting of workpieces traveling through the drum in the longitudinal direction with the aid of centrifugal wheels, characterized in that the jacket ( 10) opposite its jacket opening (14) is provided with at least one turning stage (16) extending over the jacket length. 2. Fließ-Schwenktrommel nach Anspruch 1, dadurch gekennzeichnet, daß die Wendestufen (16) spiegelsymmetrisch zu der Längs-Symmetrieebene des Mantels (lo) angeordnet sind.2. Flow swivel drum according to claim 1, characterized in that the turning stages (16) are arranged mirror-symmetrically to the longitudinal plane of symmetry of the jacket (lo). 3. Fließ-Schwenktrommel nach Anspruch 1, dadurch gekennzeichnet, daß jede Wendestufe (16) als in den Mantel (10) nach außen gedrückte im wesentlichen V-förmige Rinne ausgebildet ist, deren eine Schenkelfläche (17) tangential in den Mantel (10) und deren andere zu der ersten im wesentlichen senkrechte Schenkelfläche (18) mit einem Knick in den Mantel (10) übergeht.3. flow swivel drum according to claim 1, characterized in that each turning stage (16) is formed as in the jacket (10) pressed outward substantially V-shaped groove, one leg surface (17) tangentially into the jacket (10) and the other of which merges with the first substantially perpendicular leg surface (18) with a kink in the jacket (10). 4. Fließ-Schwenktrommel nach den Ansprüchen 2 und 3 mit einer Wendestufe, dadurch gekennzeichnet, daß der Knick am Übergang von der zweiten Schenkelfläche (18) in den Mantel (10) in der Längs-Symmetrieebene des Mantels angeordnet ist.4. Flow swivel drum according to claims 2 and 3 with a turning stage, characterized in that the kink at the transition from the second leg surface (18) in the jacket (10) is arranged in the longitudinal plane of symmetry of the jacket.
EP80104559A 1979-08-16 1980-08-01 Oscillating drum for continuous blast cleaning of workpieces Expired EP0024577B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80104559T ATE2879T1 (en) 1979-08-16 1980-08-01 FLOATING SWIVEL DRUM FOR CONTINUOUS BLASTING OF WORKPIECES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19797923277U DE7923277U1 (en) 1979-08-16 1979-08-16 FLOWING SWIVEL DRUM FOR CONTINUOUS BLASTING OF WORKPIECES
DE7923277U 1979-08-16

Publications (3)

Publication Number Publication Date
EP0024577A1 true EP0024577A1 (en) 1981-03-11
EP0024577B1 EP0024577B1 (en) 1983-03-30
EP0024577B2 EP0024577B2 (en) 1989-01-11

Family

ID=6706597

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80104559A Expired EP0024577B2 (en) 1979-08-16 1980-08-01 Oscillating drum for continuous blast cleaning of workpieces

Country Status (3)

Country Link
EP (1) EP0024577B2 (en)
AT (1) ATE2879T1 (en)
DE (1) DE7923277U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993003888A1 (en) * 1991-08-13 1993-03-04 Georg Fischer Giessereianlagen Ag Centrifugal jet cleaning machine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7923277U1 (en) * 1979-08-16 1979-11-29 Maschinen- U. Werkzeugfabrik Kabel Vogel & Schemmann Ag, 5800 Hagen FLOWING SWIVEL DRUM FOR CONTINUOUS BLASTING OF WORKPIECES

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD34667A (en) *
US2116160A (en) * 1935-10-22 1938-05-03 Pangborn Corp Abrading apparatus
US2440819A (en) * 1944-03-09 1948-05-04 Pangborn Corp Tumbling mill
DD109334A5 (en) * 1972-09-29 1974-11-05
DE2424086A1 (en) * 1974-05-17 1975-11-27 Vogel & Schemmann Masch Continuous drum sand blasting device - drum inclined in longitudinal direction and supported pivot about its axis between two angular positions
DE7923277U1 (en) * 1979-08-16 1979-11-29 Maschinen- U. Werkzeugfabrik Kabel Vogel & Schemmann Ag, 5800 Hagen FLOWING SWIVEL DRUM FOR CONTINUOUS BLASTING OF WORKPIECES

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD34667A (en) *
US2116160A (en) * 1935-10-22 1938-05-03 Pangborn Corp Abrading apparatus
US2440819A (en) * 1944-03-09 1948-05-04 Pangborn Corp Tumbling mill
DD109334A5 (en) * 1972-09-29 1974-11-05
DE2424086A1 (en) * 1974-05-17 1975-11-27 Vogel & Schemmann Masch Continuous drum sand blasting device - drum inclined in longitudinal direction and supported pivot about its axis between two angular positions
DE7923277U1 (en) * 1979-08-16 1979-11-29 Maschinen- U. Werkzeugfabrik Kabel Vogel & Schemmann Ag, 5800 Hagen FLOWING SWIVEL DRUM FOR CONTINUOUS BLASTING OF WORKPIECES

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993003888A1 (en) * 1991-08-13 1993-03-04 Georg Fischer Giessereianlagen Ag Centrifugal jet cleaning machine

Also Published As

Publication number Publication date
EP0024577B2 (en) 1989-01-11
DE7923277U1 (en) 1979-11-29
ATE2879T1 (en) 1983-04-15
EP0024577B1 (en) 1983-03-30

Similar Documents

Publication Publication Date Title
DE3308586C2 (en) Device for centerless, external machining of elongated workpieces
DE3216443C1 (en) Screening device for separating cleaning bodies from the cooling water flow behind a tube heat exchanger
EP0024577A1 (en) Oscillating drum for continuous blast cleaning of workpieces
DE3527923C2 (en)
EP0342196B1 (en) Device for straightening boards and the like
DE4444000A1 (en) Spray installation through which workpieces are moved by transporter
EP0607853B1 (en) Flaking mill with a product channel on each of the axial ends of the rollers
EP0371328A2 (en) Method of and device for grinding the upper surfaces and/or the guide surfaces of rails or like
EP1348806B1 (en) Sealing arrangement
EP0103667B1 (en) Double roller guide for rolling mills
EP0490189B1 (en) Blast installation for blasting the surface of sheet metal, sections or the like
DE3338523C2 (en) Method and device for producing metal fibers
DE4010436C2 (en)
EP1316487A2 (en) Dust removal installation for vehicle bodies
DE2848437C3 (en) Adjustable belt transfer
EP0049404A1 (en) Method and device for the treatment of workpieces by abrasive blasting
DE3128113C2 (en) Adjustable belt transfer for use in underground mining operations, with a chute that can be continuously rotated through 360 degrees around a center point
EP0553738A1 (en) Screening device, in particular for sorting waste material
DE3410074C1 (en) Adjustable belt transfer for use in underground mine operation
EP0099939B1 (en) Barrel abrasive blasting machine for the abrasive-blasting treatment of large workpieces having the same or different dimensions
EP0776840B1 (en) Turning device
EP0110228A2 (en) Shot blasting chamber and use of the same
DE1452876C (en) Device for producing a hollow body of revolution with a constriction from a hollow cylinder
WO1989000144A1 (en) Tube element for tubular conveyor
DE1477302A1 (en) Self-centering bezel

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

Designated state(s): AT BE CH FR GB IT LU NL SE

17P Request for examination filed

Effective date: 19810605

ITF It: translation for a ep patent filed

Owner name: BARZANO' E ZANARDO ROMA S.P.A.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): AT BE CH FR GB IT LI LU NL SE

REF Corresponds to:

Ref document number: 2879

Country of ref document: AT

Date of ref document: 19830415

Kind code of ref document: T

ET Fr: translation filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19830720

Year of fee payment: 4

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

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19830831

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: BMD BADISCHE MASCHINENFABRIK DURLACH GMBH

Effective date: 19831117

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

Ref country code: FR

Payment date: 19840723

Year of fee payment: 5

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

Ref country code: CH

Payment date: 19840829

Year of fee payment: 5

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

Ref country code: SE

Payment date: 19840930

Year of fee payment: 5

Ref country code: BE

Payment date: 19840930

Year of fee payment: 5

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

Ref country code: AT

Payment date: 19860828

Year of fee payment: 7

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

Ref country code: NL

Payment date: 19860831

Year of fee payment: 7

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

Ref country code: AT

Effective date: 19870801

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

Ref country code: SE

Effective date: 19870802

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

Ref country code: LI

Effective date: 19870831

Ref country code: CH

Effective date: 19870831

BERE Be: lapsed

Owner name: MASCHINEN- UND WERKZEUGFABRIK KABEL VOGEL & SCHE

Effective date: 19870831

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

Ref country code: NL

Effective date: 19880301

GBPC Gb: european patent ceased through non-payment of renewal fee
NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19880429

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19881118

PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

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

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

27A Patent maintained in amended form

Effective date: 19890111

AK Designated contracting states

Kind code of ref document: B2

Designated state(s): AT BE CH FR GB IT LU NL SE

EN3 Fr: translation not filed ** decision concerning opposition
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19890831

EUG Se: european patent has lapsed

Ref document number: 80104559.2

Effective date: 19880707

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO