DE448372C - Method of making pipe bends with folds on the inner pipe bend - Google Patents

Method of making pipe bends with folds on the inner pipe bend

Info

Publication number
DE448372C
DE448372C DEG61961D DEG0061961D DE448372C DE 448372 C DE448372 C DE 448372C DE G61961 D DEG61961 D DE G61961D DE G0061961 D DEG0061961 D DE G0061961D DE 448372 C DE448372 C DE 448372C
Authority
DE
Germany
Prior art keywords
pipe
folds
pressure
fold
chain
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
Application number
DEG61961D
Other languages
German (de)
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.)
CARL GRAEF
Original Assignee
CARL GRAEF
Publication date
Priority to DEG61961D priority Critical patent/DE448372C/en
Application granted granted Critical
Publication of DE448372C publication Critical patent/DE448372C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D9/00—Bending tubes using mandrels or the like
    • B21D9/14—Wrinkle-bending, i.e. bending by corrugating

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Branch Pipes, Bends, And The Like (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Claims (1)

Die Erfindung betrifft die Hersteüung vonThe invention relates to the manufacture of Rohrkrümmern aus Rohren mit Falten an dem inneren Rohrbogen, die durch Erhitzen einzelner Stellen der Rohrwandung gebildet sind.Elbows made of pipes with folds on the inner pipe elbow, which are made by heating individual points of the pipe wall are formed. Das Neue besteht darin, daß die Bildung jeder Falte unter Fortfall der .Sandfüllung o. dgl. durch Anwendung eines zur Rohrachse exzentrisch gerichteten Druckes erfolgt.What is new is that the formation of every fold with the elimination of the sand filling o. The like. Is carried out by applying a pressure eccentrically directed to the pipe axis. ίο Auf der Zeichnung ist das Verfahren an einem Ausführungsbeispiel erläutert.ίο In the drawing, the method is explained using an exemplary embodiment. Das Rohr« wird an der Stelle b, wo die Falte entstehen soll, erwärmt. Durch Druck in der Richtung d-b und e-b auf diese Stelle entsteht nach außen eine Wulst oder Falte. Gleichzeitig wird der entstehenden Verkürzung entsprechend das Rohr gebogen. Dieses Verfahren wird so oft wiederholt, bis die gewünschte Bogenform hergestellt ist. Im gezeichneten Beispiel wird der Druck auf die erwärmte Stelle b durch das Anziehen der Kette C hergestellt. Die Kette c ist bei d am Rohr befestigt und trägt am entgegengesetzten Ende eine Schraube/, deren Mutter sich gegen das Gegenlager g stützt. Ein Anziehen der Schraube/ bewirkt einen Zug in der Kette c und einen Druck in der Richtung e-b und d-b auf die Rohrwand.The tube «is heated at the point b where the fold is to be formed. By applying pressure in the direction db and eb on this point, an outward bulge or fold is created. At the same time, the pipe is bent according to the resulting shortening. This process is repeated until the desired arch shape is produced. In the example shown, the pressure on the heated point b is created by tightening the chain C. The chain c is attached to the tube at d and carries a screw / whose nut is supported against the counter bearing g at the opposite end. Tightening the screw / causes a pull in the chain c and a pressure in the direction eb and db on the pipe wall. Patentansvkuch:Patent claim: Verfahren zur Herstellung von Rohrbogen aus Rohren mit Falten an dem inneren Rohrbogen, die durch Erhitzung einzelnep Stellen der Rohrwandung" gebildet sind, dadurch gekennzeichnet, daß die Bildung der Falten unter Fortfall der Sandfüllung o. dgl. durch Anwendung eines zur Rohrachse exzentrisch gerichteten Druckes erfolgt.Process for the production of pipe bends from pipes with folds on the inner pipe bends, which are formed by heating individual parts of the pipe wall " are, characterized in that the formation of the folds with omission of the sand filling o. The like. By using a to the pipe axis eccentrically directed pressure takes place.
DEG61961D Method of making pipe bends with folds on the inner pipe bend Expired DE448372C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEG61961D DE448372C (en) Method of making pipe bends with folds on the inner pipe bend

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG61961D DE448372C (en) Method of making pipe bends with folds on the inner pipe bend

Publications (1)

Publication Number Publication Date
DE448372C true DE448372C (en) 1927-08-10

Family

ID=7132899

Family Applications (1)

Application Number Title Priority Date Filing Date
DEG61961D Expired DE448372C (en) Method of making pipe bends with folds on the inner pipe bend

Country Status (1)

Country Link
DE (1) DE448372C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004035272A1 (en) * 2004-07-21 2006-03-16 Aesculap Ag & Co. Kg Vascular prosthesis, e.g. an aorta arch, has ring pleats and a longitudinal stitched seam at the curved section to gather the pleats asymmetrically at the inner side of the arch curve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004035272A1 (en) * 2004-07-21 2006-03-16 Aesculap Ag & Co. Kg Vascular prosthesis, e.g. an aorta arch, has ring pleats and a longitudinal stitched seam at the curved section to gather the pleats asymmetrically at the inner side of the arch curve

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