EP0065314B1 - Beam for shutterings - Google Patents
Beam for shutterings Download PDFInfo
- Publication number
- EP0065314B1 EP0065314B1 EP19820104352 EP82104352A EP0065314B1 EP 0065314 B1 EP0065314 B1 EP 0065314B1 EP 19820104352 EP19820104352 EP 19820104352 EP 82104352 A EP82104352 A EP 82104352A EP 0065314 B1 EP0065314 B1 EP 0065314B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- formwork
- flange
- girder
- web
- tab
- 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
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
- E04G11/062—Forms for curved walls
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/04—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for structures of spherical, spheroid or similar shape, or for cupola structures of circular or polygonal horizontal or vertical section; Inflatable forms
Definitions
- the invention relates to a formwork support for formwork constructions for round buildings with a shape that changes over their height, consisting of a profile support with two flanges arranged at a distance from one another and at least one web connecting the flanges, the support having at least one bend, and on the bend the opposite flange opposite the flange and the web of the profile carrier is provided with an incision transversely to the longitudinal direction of the profile carrier, and at least one correspondingly bent tab bridges the incision, and is connected to the two separate flange parts of the counter flange.
- the US-PS 17 47 362 shows such a construction of a girder, but it is not a formwork girder, but an arch of a steel structure.
- the bow is rigid.
- US Pat. No. 524,807 also shows a steel construction carrier with rigid bends.
- a foldable formwork is known from US Pat. No. 1,214,233, but it is not very dimensionally stable at the fold points.
- Formwork girders of the type mentioned at the outset have become known, for example, for formwork of buckled walls, the formwork panels being fastened to a flange of the profile girder. So far, one has separated the profile beam in the kink, cut and welded the end faces according to the kink angle. This method requires a considerable amount of work, which inhibits rapid assembly of the formwork scaffold. In addition, the kink angle of the profile beam can neither be corrected nor changed, for example in order to be able to use one and the same profile beam for formwork of walls with different kink angles.
- the object of the invention is to avoid these disadvantages and to provide a formwork support for formwork constructions which is provided with at least one bend and which permits angled bend which is correct in terms of assembly and is technically secure, and a simple correction or change in the articulation angle.
- the one flange is continuous and bend-deformable to change the bending angle
- the tab is screwed to the flange parts of the counter flange and has elongated holes which extend in the longitudinal direction of the profile beam and through which the fastening screws protrude.
- the invention can be used advantageously for formwork beams for buckled walls, which also include “curved” walls approximated by polyhedra.
- the invention can, however, also be used in formwork construction for beams which do not directly serve as beams for formwork panels, but with an otherwise load-bearing function, e.g. B. are arranged in the scaffolding or work scaffolding of a formwork construction, and there have one or more kinks, for example in the case of a polygonal course of the girder.
- the invention also enriches the assembly technology beyond the field of formwork construction.
- the formwork support according to the invention is used in particular in formwork for water towers, television towers, water containers, egg-shaped digesters and the like.
- the formwork girders which run in height, have been shaped and welded accordingly.
- the formwork support according to the invention can be adapted in a simple manner to any building shape, its adaptability being determined only by the distance between the bends. Furthermore, the formwork support according to the invention can be quickly reassembled, i.e. H. can be adapted to another formwork with a different curve.
- the formwork support according to the invention can also be used as a horizontal polygonal pressure or pull ring of a formwork scaffold for round buildings.
- FIG. 1 shows in view (partially cut) the kink of a formwork beam
- FIG. 2 shows a section according to 11-11 of FIG. 1
- Fig. Shows a variant for the tab
- FIG. 4 shows a formwork beam with an incision for a “convex kink”
- FIG. 5 shows the same formwork beam in the kinked position
- 6 and 7 show profile variants for the formwork beam
- FIG. 8 shows an application example of a formwork beam according to the invention.
- the formwork girder 10 is an I-section girder made of steel with the two flanges 1, 2 and the web 3.
- the formwork panels 4, which are offset on the edge side, are fastened to the flange 1 (fastening flange), with the help of the spreader bars 5.
- the formwork support 10 is provided with an incision 6 transverse to a longitudinal direction, which extends over the flange 2 (counter flange) opposite the mounting flange 1 and the entire web 3, but not into the continuous mounting flange 1 a penetrates. Then the carrier parts lying on both sides of the incision 6 are bent against one another in accordance with the required bending angle.
- the incision 6 is bridged by a tab 7 made of steel, which is connected to the counter flange 2, the nuts 9 being tightened with a torque wrench.
- the tab 7 expediently has the width of the counter flange 2 and is dimensioned in accordance with the tensile and compressive loads that occur.
- the connection of the carrier parts, which are partially separated by the incision 6, via the screwed tab 7 is a friction connection.
- the tab 7 has elongated holes 11, which allow the tab 7 to be adapted to different bending angles.
- the buttons of the screws 8 are underlaid by washers 10 '.
- FIG. 3 shows a tab 1 that is particularly easily adaptable to different articulation angles.
- the tab 7 has a hinge joint in the central region.
- the holes for the passage of the fastening screws are elongated holes.
- Fig. 1 shows a kink with a "concave” kink.
- the measures according to the invention can also be used for kinks with a «convex kink.
- a slightly modified incision 6 'of the counter flange 2 and the web 3 is required, which makes it possible for the continuous flange 1 to be bent in the manner shown in FIG. 5.
- the cut 6 ' is in turn bridged by a correspondingly bent tab 7 which is screwed to the counter flange 2.
- the formwork beam 10 need not necessarily be an I-beam.
- the adjustable buckling of the carrier according to the invention can also be achieved with other profile carriers, for. 6 or box section beams according to FIG. 7, in which case the counter flange 2 and the web (s) 3 are cut at the kink, but not the continuous flange 1. The cut is also made bridged here by the tab 7, which is screwed to the counter flange 2.
- the formwork beam 10 according to the invention is used both as a longitudinal beam and as a pressure ring.
- the formwork 11 can be easily adapted to any curvature by means of the formwork support 10 according to the invention. It is also possible to adapt the formwork beam 10 used as a pressure ring to any diameter.
- Several formwork beams 10 are each put together to form a closed ring.
- the formwork beams 10 are connected, for example, by means of screws.
- a particular advantage of the formwork beam 10 according to the invention can be seen in the fact that it can be used to form adjustable fish belly beams with its radius.
- Such fish belly carriers are used for example in dome-like ceilings for water tanks.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Rod-Shaped Construction Members (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Description
Die Erfindung bezieht sich auf einen Schalungsträger für Schalungskonstruktionen für Rundgebäude mit über ihre Höhe sich verändernder Form, bestehend aus einem Profilträger mit zwei mit Abstand voneinander angeordneten Flanschen und mindestens einem die Flansche verbindenden Steg, wobei der Träger mindestens eine Abwinkelung aufweist, und an der Abwinkelung der dem einen Flansch gegenüberliegende Gegenflansch und der Steg des Profilträgers mit einem Einschnitt quer zur Längsrichtung des Profilträgers versehen ist, und mindestens eine entsprechend geknickte Lasche den Einschnitt überbrückt, und mit den beiden getrennten Flanschteilen des Gegenflansches verbunden ist.The invention relates to a formwork support for formwork constructions for round buildings with a shape that changes over their height, consisting of a profile support with two flanges arranged at a distance from one another and at least one web connecting the flanges, the support having at least one bend, and on the bend the opposite flange opposite the flange and the web of the profile carrier is provided with an incision transversely to the longitudinal direction of the profile carrier, and at least one correspondingly bent tab bridges the incision, and is connected to the two separate flange parts of the counter flange.
Die US-PS 17 47 362 zeigt eine derartige Konstruktion eines Trägers, wobei es sich allerdings um keinen Schalungsträger handelt, sondern um einen Bogen einer Stahlbaukonstruktion. Der Bogen ist starr.The US-PS 17 47 362 shows such a construction of a girder, but it is not a formwork girder, but an arch of a steel structure. The bow is rigid.
Auch die US-PS 524 807 zeigt einen Stahlbauträger mit starren Abwinkelungen.US Pat. No. 524,807 also shows a steel construction carrier with rigid bends.
Aus der US-PS 1 214 233 ist eine faltbare Schalung bekannt, die jedoch an den Faltstellen nicht sehr formstabil ist.A foldable formwork is known from US Pat. No. 1,214,233, but it is not very dimensionally stable at the fold points.
Schalungsträger der eingangs erwähnten Art sind beispielsweise für Schalungen von geknickten Wänden bekannt geworden, wobei die Schalungstafeln an einem Flansch des Profilträgers befestigt werden. Bisher hat man in der Knickstelle den Profilträger getrennt, die Stirnflächen entsprechend dem Knickwinkel schräg geschnitten und verschweißt. Diese Methode erfordert einen erheblichen Arbeitsaufwand, der eine zügige Montage des Schalungsgerüstes hemmt. Außerdem läßt sich damit der Knickwinkel des Profilträgers weder korrigieren noch verändern, beispielsweise um ein und denselben Profilträger für Schalungen von Wänden mit unterschiedlichem Knickwinkel verwenden zu können.Formwork girders of the type mentioned at the outset have become known, for example, for formwork of buckled walls, the formwork panels being fastened to a flange of the profile girder. So far, one has separated the profile beam in the kink, cut and welded the end faces according to the kink angle. This method requires a considerable amount of work, which inhibits rapid assembly of the formwork scaffold. In addition, the kink angle of the profile beam can neither be corrected nor changed, for example in order to be able to use one and the same profile beam for formwork of walls with different kink angles.
Aufgabe der Erfindung ist es, diese Nachteile zu vermeiden und einen mit mindestens einer Abwinkelung versehenen Schalungsträger für Schalungskonstruktionen zu schaffen, der eine montagegerechte und fertigkeitstechnisch gesicherte Abwinkelung sowie eine einfache Korrektur bzw. Veränderung des Knickwinkels ermöglicht.The object of the invention is to avoid these disadvantages and to provide a formwork support for formwork constructions which is provided with at least one bend and which permits angled bend which is correct in terms of assembly and is technically secure, and a simple correction or change in the articulation angle.
Dies wird erfindungsgemäß dadurch erreicht, daß der eine Flansch durchgehend und zur Veränderung des Knickwinkels biegeverformbar ist, und daß die Lasche mit den Flanschteilen des Gegenflansches verschraubt ist und Langlöcher aufweist, die sich in Längsrichtung des Profilträgers erstrecken und durch die die Befestigungsschrauben ragen.This is achieved according to the invention in that the one flange is continuous and bend-deformable to change the bending angle, and in that the tab is screwed to the flange parts of the counter flange and has elongated holes which extend in the longitudinal direction of the profile beam and through which the fastening screws protrude.
Die Erfindung läßt sich mit Vorteil für Schalungsträger für geknickte Wände verwenden, wozu auch durch Polyeder angenäherte « gekrümmte » Wände gehören. Die Erfindung kann aber im Schalungsbau auch bei Trägern angewendet werden, die nicht unmittelbar als Träger von Schaltafeln dienen, sondern mit anderweitig tragender Funktion, z. B. im Traggerüst oder Arbeitsgerüst einer Schalungskonstruktion angeordnet sind, und dort eine oder mehrere Knickstellen, beispielsweise bei polygonartigem Verlauf des Trägers, aufweisen. Schließlich stellt die Erfindung auch über das Gebiet des Schalungsbaues hinausgehend eine Bereicherung der Montagetechnik dar.The invention can be used advantageously for formwork beams for buckled walls, which also include “curved” walls approximated by polyhedra. The invention can, however, also be used in formwork construction for beams which do not directly serve as beams for formwork panels, but with an otherwise load-bearing function, e.g. B. are arranged in the scaffolding or work scaffolding of a formwork construction, and there have one or more kinks, for example in the case of a polygonal course of the girder. Finally, the invention also enriches the assembly technology beyond the field of formwork construction.
Der erfindungsgemäße Schalungsträger findet insbesondere bei Schalungen für Wassertürme, Fernsehtürme, Wasserbehälter, Eiformfaulbehälter und dergleichen Verwendung. Bisher wurden bei derartigen Rundgebäuden mit sich verändernder Form (derartige Gebäude können im oberen Bereich beispielsweise tulpenaritg ausgeführt sein) die der Höhe nach verlaufenden Schalungsträger entsprechend geformt und verschweißt.The formwork support according to the invention is used in particular in formwork for water towers, television towers, water containers, egg-shaped digesters and the like. Up to now, in such round buildings with a changing shape (such buildings can be made tulip-like, for example, in the upper area), the formwork girders, which run in height, have been shaped and welded accordingly.
Abgesehen vom relativ großen Aufwand bei der Herstellung des Schalungsträgers erzielte man jeweils einen Träger, der nur für ein bestimmtes Gebäude zu verwenden war.In addition to the relatively great effort involved in the manufacture of the formwork girder, a girder was achieved that could only be used for a specific building.
Der erfindungsgemäße Schalungsträger kann auf einfache Art und Weise jeder Gebäudeform angepaßt werden, wobei seine Anpassungsfähigkeit lediglich vom Abstand der Abwinkelungen zueinander bestimmt wird. Weiters kann der erfindungsgemäße Schalungsträger rasch ummontiert, d. h. mit anderem Kurvenverlauf einer anderen Schalung angepaßt werden.The formwork support according to the invention can be adapted in a simple manner to any building shape, its adaptability being determined only by the distance between the bends. Furthermore, the formwork support according to the invention can be quickly reassembled, i.e. H. can be adapted to another formwork with a different curve.
Der erfindungsgemäße Schalungsträger kann aber auch als horizontaler polygonaler Druck-oder Zugring eines Schalungsgerüstes für Rundbauten verwendet werden.However, the formwork support according to the invention can also be used as a horizontal polygonal pressure or pull ring of a formwork scaffold for round buildings.
Die Erfindung wird nachstehend anhand von Ausführungsbeispielen näher erläutert, ohne darauf beschränkt zu sein.The invention is explained in more detail below on the basis of exemplary embodiments, without being restricted thereto.
Fig. 1 zeigt in Ansicht (teilweise geschnitten) die Knickstelle eines Schalungsträgers ; Fig. 2 einen Schnitt gemäß 11-11 der Fig. 1 ; Fig. zeigt eine Variante für die Lasche ; Fig. 4 zeigt einen Schalungsträger mit einem Einschnitt für einen « konvexen Knick und Fig. 5 denselben Schalungsträger in geknickter Stellung ; Fig. 6 und 7 zeigen Profilvarianten für den Schalungsträger und die Fig.8 zeigt ein Anwendungsbeispiel eines erfindungsgemäßen Schalungsträgers.Fig. 1 shows in view (partially cut) the kink of a formwork beam; FIG. 2 shows a section according to 11-11 of FIG. 1; Fig. Shows a variant for the tab; FIG. 4 shows a formwork beam with an incision for a “convex kink and FIG. 5 shows the same formwork beam in the kinked position; 6 and 7 show profile variants for the formwork beam and FIG. 8 shows an application example of a formwork beam according to the invention.
Gemäß Ausführungsbeispiel nach Fig. 1 und 2 ist der erfindungsgemäße Schalungsträger 10 ein I-Profilträger aus Stahl mit den beiden Flanschen 1, 2 und dem Steg 3. Am Flansch 1 (Befestigungsflansch) sind die Schaltafeln 4, die randseitig absatzartig abgesetzt sind, befestigt, und zwar mit Hilfe der Spreizstäbe 5.1 and 2, the
Dort, wo die zu errichtende Wand eine Abwinkelung aufweist, erhält der Schalungsträge 10 quer zur einen Längsrichtung einen Einschnitt 6, der sich über den dem Befestigungsflansch 1 gegenüberliegenden Flansch 2 (Gegenflansch) und den ganzen Steg 3 erstreckt, nicht aber in den durchgehenden Befestigungsflansch 1 eindringt. Sodann werden die zu beiden Seiten des Einschnittes 6 liegenden Trägerteile gegeneinander entsprechend dem erforderlichen Knickwinkel abgebogen. Der Einschnitt 6 wird durch eine Lasche 7 aus Stahl überbrückt, die mit dem Gegenflansch 2 verbunden wird, wobei die Schraubenmuttern 9 mit einem Drehmomentschlüssel angezogen werden. Die Lasche 7 weist zweckmäßigerweise die Breite des Gegenflansches 2 auf und ist entsprechend der auftretenden Zug- und Druckbelastungen dimensioniert. Die Verbindung der durch den Einschnitt 6 teilweise getrennten Trägerteile über die verschraubte Lasche 7 stellt sich als Reibverbindung dar.Where the wall to be erected bends, the
Die Lasche 7 weist Langlöcher 11 auf, die eine Anpassung der Lasche 7 an verschiedene Knickwinkel ermöglichen. Insbesondere wegen dieser Langlöcher 11 werden die Knöpfe der Schrauben 8 von Beilagscheiben 10' unterlegt. Eine besonders leicht an verschiedene Knickwinkel anpaßbare Lasche 1 zeigt Fig. 3. Nach Fig. 3 weist die Lasche 7 im mittleren Bereich ein Scharniergelenk auf. Es ist jedoch auch in diesem Fall zweckmäßig, wenn die Löcher für den Durchtritt der Befestigungsschrauben Langlöcher sind.The
Fig. 1 zeigt eine Knickstelle mit « konkavem » Knick. Die erfindungsgemäßen Maßnahmen lassen sich jedoch auch für Knickstellen mit « konvexem Knick anwenden. Dazu ist - wie aus Fig.4 ersichtlich - Ein etwas veränderter Einschnitt 6' des Gegenflansches 2 und des Steges 3 erforderlich, der es ermöglicht, daß der durchgehende Flansch 1 in der aus Fig. 5 ersichtlichen Weise geknickt werden kann. Die Überbrückung des Einschnittes 6' erfolgt wiederum durch eine entsprechend geknickte Lasche 7, die mit dem Gegenflansch 2 verschraubt wird.Fig. 1 shows a kink with a "concave" kink. However, the measures according to the invention can also be used for kinks with a «convex kink. For this purpose - as can be seen from FIG. 4 - a slightly modified incision 6 'of the
Der Schalungsträger 10 muß nicht unbedingt ein I-Profilträger sein. Die erfindungsgemäße einstellbare Knickung der Träger läßt sich auch bei anderen Profilträgern erzielen, z. B. bei C-Profilträgern gemäß Fig. 6 oder Kastenprofilträgern gemäß Fig. 7, wobei auch in diesen Fällen an der Knickstelle ein Einschnitt des Gegenflansches 2 und des bzw. der Stege 3 erfolgt, nicht jedoch des durchgehenden Flansches 1. Der Einschnitt wird auch hier durch die Lasche 7, die mit dem Gegenflansch 2 verschraubt wird, überbrückt.The
Im Ausführungsbeispiel der Fig.8 ist der erfindungsgemäße Schalungsträger 10 sowohl als Längsträger als auch als Druckring eingesetzt. Die Schalung 11 kann mittels der erfindungsgemäßen Schalungsträger 10 leicht jedem Krümmungsverlauf angepaßt werden. Ebenso ist es möglich, den als Druckring eingesetzten Schalungsträger 10 jedem Durchmesser anzupassen. Mehrere Schalungsträger 10 werden dabei jeweils zu einem geschlossenen Ring zusammengesetzt. Die Verbindung der Schalungsträger 10 erfolgt beispielsweise mittels Schrauben.In the exemplary embodiment in FIG. 8, the
Ein besonderer Vorteil des erfindungsgemäßen Schalungsträgers 10 ist darin zu sehen, daß mit ihm im Radius einstellbare Fischbauchträger gebildet werden können. Derartige Fischbauchträger gelangen beispielsweise bei kuppelartigen Decken für Wasserbehälter zum Einsatz.A particular advantage of the
Claims (1)
- Girder for shuttering constructions for round structures whose shapes change along their heights, comprising a profiled girder with two flanges (1, 2) at a distance from each other and at least one web (3) connecting the flanges, the girder (10) having at least one angular portion, and at the angular portion, the counter flange (2) opposite the flange (1) and the web (3) of the profiled girder (10) being provided with a cutout (6, 6') transverse to the longitudinal direction of the profiled girder, and at least one correspondingly bent flap (7) bridging the cutout and being connected with the two separate flange parts of the counter flange, characterized in that the flange (1) is continuous and bendable for changing the angle of the bend, and that the flap (7) is screwed to the flange parts of the counter flange (2) and has oblong holes (11) which extend in longitudinal direction of the profiled girder and through which the fastening screws (8) project.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT2247/81 | 1981-05-20 | ||
| AT224781A AT381546B (en) | 1981-05-20 | 1981-05-20 | CARRIER FOR SHUTTERING CONSTRUCTIONS FOR ROTARY BUILDINGS |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0065314A1 EP0065314A1 (en) | 1982-11-24 |
| EP0065314B1 true EP0065314B1 (en) | 1985-10-09 |
Family
ID=3530762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19820104352 Expired EP0065314B1 (en) | 1981-05-20 | 1982-05-18 | Beam for shutterings |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0065314B1 (en) |
| AT (1) | AT381546B (en) |
| DE (1) | DE3266770D1 (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT394239B (en) * | 1982-04-23 | 1992-02-25 | Rund Stahl Bau Gmbh & Co | FORMWORK BEAM |
| GB2133450B (en) * | 1982-12-06 | 1986-09-17 | Rapid Metal Developments Ltd | Formwork support system |
| AT396277B (en) * | 1983-10-14 | 1993-07-26 | Rund Stahl Bau Gmbh & Co | METHOD FOR ESTABLISHING CONSTRUCTION BODIES IN PARTICULAR CONSTRUCTION OF CASTABLE MATERIALS, AND DEVICE SYSTEM FOR IMPLEMENTING THE METHOD |
| DE3341564A1 (en) * | 1983-11-17 | 1985-05-30 | Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn | CURVED AREA COMPONENT, ESPECIALLY FOR AIRCRAFT AND DEVICE FOR THEIR PRODUCTION |
| DE3536816A1 (en) * | 1985-10-16 | 1987-04-16 | Josef Maier | FORMWORK FOR ROUND OR MULTI-SIDED BUILDINGS |
| US5125617A (en) * | 1990-03-29 | 1992-06-30 | Miller Alan P | Adjustable radius walers for forming |
| CN102847889A (en) * | 2012-09-03 | 2013-01-02 | 西峡龙成特种材料有限公司 | Die casting crystallizer with barrel structure |
| CN102873285B (en) * | 2012-09-03 | 2015-06-10 | 西峡龙成特种材料有限公司 | Circular water-cooling crystallizer ingot mould |
| CN102873284A (en) * | 2012-09-03 | 2013-01-16 | 西峡龙成特种材料有限公司 | Polygonal water-cooling mould casting crystallizer |
| CN106737275B (en) * | 2016-11-21 | 2023-07-21 | 广州飞机维修工程有限公司 | 737CL type aircraft large-wing rear beam upper edge strip repairing, cutting and positioning tool and method |
| AT522654B1 (en) * | 2019-05-29 | 2023-08-15 | Porr Bau Gmbh | Flexible formwork |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US524807A (en) * | 1894-08-21 | Trestle | ||
| US1214233A (en) * | 1914-05-18 | 1917-01-30 | Patrick D Skahen | Collapsible form for concrete walls. |
| US1747362A (en) * | 1928-09-19 | 1930-02-18 | Graveley Eugene Cenas | Arch construction |
| AU491529B2 (en) * | 1974-09-16 | 1978-03-15 | Stimson, C.J. | Method of producing bends in metal tube by angle notching |
-
1981
- 1981-05-20 AT AT224781A patent/AT381546B/en not_active IP Right Cessation
-
1982
- 1982-05-18 DE DE8282104352T patent/DE3266770D1/en not_active Expired
- 1982-05-18 EP EP19820104352 patent/EP0065314B1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| AT381546B (en) | 1986-10-27 |
| ATA224781A (en) | 1986-03-15 |
| EP0065314A1 (en) | 1982-11-24 |
| DE3266770D1 (en) | 1985-11-14 |
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