GB688519A - Improvements in or relating to apparatus for and method of forming a reducing elbow - Google Patents

Improvements in or relating to apparatus for and method of forming a reducing elbow

Info

Publication number
GB688519A
GB688519A GB11136/51A GB1113651A GB688519A GB 688519 A GB688519 A GB 688519A GB 11136/51 A GB11136/51 A GB 11136/51A GB 1113651 A GB1113651 A GB 1113651A GB 688519 A GB688519 A GB 688519A
Authority
GB
United Kingdom
Prior art keywords
die
elbow
blank
balls
shaped
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
GB11136/51A
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.)
TUBE TURNS Inc
Original Assignee
TUBE TURNS Inc
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 TUBE TURNS Inc filed Critical TUBE TURNS Inc
Publication of GB688519A publication Critical patent/GB688519A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D9/00Bending tubes using mandrels or the like
    • B21D9/12Bending tubes using mandrels or the like by pushing over a curved mandrel; by pushing through a curved die
    • B21D9/125Bending tubes using mandrels or the like by pushing over a curved mandrel; by pushing through a curved die by pushing through a curved die

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)

Abstract

688,519. Making pipe fittings. TUBE TURNS, Inc. May 11, 1951 [May 29, 1950], No. 11136/51. Classes 83 (ii) and 83 (iv). Drawing.-A method of forming a reducing elbow consists in externally supporting the outer surface of an elbow-shaped blank of uniform diameter and forcing the blank into a die of progressively diminishing cross-section. An elbow-shaped blank B of uniform diameter is positioned in a two-part die 7 and is forced into a portion of diminishing cross-section by a pusher 13 secured to a press head 12, through balls 15, 16, and a member 18 shaped to engage the trailing end of the blank and to contact the balls off the centre line. A guide member 9 for the pusher engages the die. On the upstroke of the press head cords from the head raise the guide 9 and cords 17 withdraw the balls. The die is raised by a member 25 and wedge surfaces on a sow-block 5 housing the die parts separate the die parts to allow extraction of the elbow and the member 18. Specification 107,768, [Class 83 (iv)], is referred to.
GB11136/51A 1950-05-29 1951-05-11 Improvements in or relating to apparatus for and method of forming a reducing elbow Expired GB688519A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US688519XA 1950-05-29 1950-05-29

Publications (1)

Publication Number Publication Date
GB688519A true GB688519A (en) 1953-03-11

Family

ID=22085122

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11136/51A Expired GB688519A (en) 1950-05-29 1951-05-11 Improvements in or relating to apparatus for and method of forming a reducing elbow

Country Status (1)

Country Link
GB (1) GB688519A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2427859A1 (en) * 1978-06-08 1980-01-04 Siekmann & Co Rohrbogenwerk Tapered pipe elbow making system - includes forcing straight pipe over rigidly supported tapered and curved mandrel ejected by ring
CN110756632A (en) * 2018-07-25 2020-02-07 丛华 Straight pipe elbow cold forming equipment with combined mold core structure
CN112007977A (en) * 2019-05-31 2020-12-01 杭州三花微通道换热器有限公司 Device for bending heat exchanger and bending method of heat exchanger

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2427859A1 (en) * 1978-06-08 1980-01-04 Siekmann & Co Rohrbogenwerk Tapered pipe elbow making system - includes forcing straight pipe over rigidly supported tapered and curved mandrel ejected by ring
CN110756632A (en) * 2018-07-25 2020-02-07 丛华 Straight pipe elbow cold forming equipment with combined mold core structure
CN110756632B (en) * 2018-07-25 2024-04-12 丛华 Cold forming equipment with combined mold core structure and straight pipe elbow
CN112007977A (en) * 2019-05-31 2020-12-01 杭州三花微通道换热器有限公司 Device for bending heat exchanger and bending method of heat exchanger
CN112007977B (en) * 2019-05-31 2022-03-25 杭州三花微通道换热器有限公司 Device for bending heat exchanger and bending method of heat exchanger

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