GB662714A - Improved machine for use in the production of return bends in tubes - Google Patents

Improved machine for use in the production of return bends in tubes

Info

Publication number
GB662714A
GB662714A GB20152/49A GB2015249A GB662714A GB 662714 A GB662714 A GB 662714A GB 20152/49 A GB20152/49 A GB 20152/49A GB 2015249 A GB2015249 A GB 2015249A GB 662714 A GB662714 A GB 662714A
Authority
GB
United Kingdom
Prior art keywords
bend
stressing
die
members
operated via
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
GB20152/49A
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.)
Compagnie des Surchauffeurs SA
Original Assignee
Compagnie des Surchauffeurs SA
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 Compagnie des Surchauffeurs SA filed Critical Compagnie des Surchauffeurs SA
Publication of GB662714A publication Critical patent/GB662714A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/28—Making tube fittings for connecting pipes, e.g. U-pieces
    • B21C37/283—Making U-pieces

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Abstract

662,714. Making superheater and like return bends. HUET, A., and COMPAGNIE DES SURCHAUFFEURS. Aug. 2, 1949 [Aug. 4, 1948], No. 20152/49. Classes 83 (ii) and 83 (iv). Angular bending; corrugating.-A machine for reducing the radius of previously formed return bends in tubes comprises a frame 1 supporting a fixed bend clamping member 3, a vertically movable bend clamping member 4 operated via a fluid-pressure cylinder 5, and a bend stressing die 23 operated via a fluid pressure cylinder 14 to move relatively to the bend clamping members 3, 4 to force the limbs of the bend under treatment towards each other. Fig. 1 shows the cylinders 5, 14 pivoted to the frame 1 and having their respective piston rods 7, 15 connected via toggle members 9, 10 and 17, 18 to the movable holding member 4 and stressing die 23. The cylinder 14 may be arranged so that the maximum pressure exerted by the toggle 17, 18 (members aligned) occurs at either half or full piston stroke. Where a single stressing die 23 is used the members 3, 4 may be profiled to form, when closed together, a die block against which the bend is pressed. Fig. 6 shows an arrangement wherein two stressing dies 23, 23a engage opposite limbs of a bend 28, the clamping members 3, 4 being formed as flat plates and the dies being operated via pivoted levers 29, 29a. Fig. 7 shows an arrangement for treating a succession of return bends 34, the clamping members 3, 4 being positioned to allow provision of bend support tables 35, 36 on each side thereof. The stressing die 23 is operated via a pivoted cranked lever 37 so that it is withdrawn, after each working stroke, below the level of the surfaces 35, 36 to allow advancement of the bends 34. Specifications 649,638 and 663,427 are referred to.
GB20152/49A 1948-08-04 1949-08-02 Improved machine for use in the production of return bends in tubes Expired GB662714A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR662714X 1948-08-04

Publications (1)

Publication Number Publication Date
GB662714A true GB662714A (en) 1951-12-12

Family

ID=9011654

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20152/49A Expired GB662714A (en) 1948-08-04 1949-08-02 Improved machine for use in the production of return bends in tubes

Country Status (1)

Country Link
GB (1) GB662714A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1080837B (en) * 1957-07-17 1960-04-28 Andre Huet Machine for messaging pipe coils

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1080837B (en) * 1957-07-17 1960-04-28 Andre Huet Machine for messaging pipe coils

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