GB743783A - Improved dies for bending sheet metal and strips of other flexible materials - Google Patents

Improved dies for bending sheet metal and strips of other flexible materials

Info

Publication number
GB743783A
GB743783A GB2841952A GB2841952A GB743783A GB 743783 A GB743783 A GB 743783A GB 2841952 A GB2841952 A GB 2841952A GB 2841952 A GB2841952 A GB 2841952A GB 743783 A GB743783 A GB 743783A
Authority
GB
United Kingdom
Prior art keywords
semi
circles
strip
die
strips
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
GB2841952A
Inventor
Harvey Burr
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.)
Balfour Beatty PLC
Original Assignee
BICC PLC
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 BICC PLC filed Critical BICC PLC
Priority to GB2841952A priority Critical patent/GB743783A/en
Publication of GB743783A publication Critical patent/GB743783A/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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Insulated Conductors (AREA)

Abstract

743,783. Drawing-dies. BRITISH INSULATED CALLENDER'S CABLES, Ltd. Nov. 20, 1953 [Nov. 11, 1952], No. 28419/52. Class 83 (4). [Also in Group V] A skelping die for bending circular section tubes from strip metal or other materials has a cross-section comprising a straight line 14, Fig. 4, joining two semi-circles 16, the width at the entrance end being substantially the same as that of the strip. The radius of the semi-circles remains constant as the section tapers along the length of the die until the exit end comprises two semi-circles. These may be of different radius of curvature so that a step 17 is formed when the edges, of the strip are required to overlap. The die comprises two sections 1, 2, Fig. 1, with opposed grooves 13 of tapering depth' and attached by studs 4, 7 and nuts 5, 8 to a base plate 3 which has slots 10 to permit adjustment of the sections 1, 2.
GB2841952A 1952-11-11 1952-11-11 Improved dies for bending sheet metal and strips of other flexible materials Expired GB743783A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2841952A GB743783A (en) 1952-11-11 1952-11-11 Improved dies for bending sheet metal and strips of other flexible materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2841952A GB743783A (en) 1952-11-11 1952-11-11 Improved dies for bending sheet metal and strips of other flexible materials

Publications (1)

Publication Number Publication Date
GB743783A true GB743783A (en) 1956-01-25

Family

ID=10275327

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2841952A Expired GB743783A (en) 1952-11-11 1952-11-11 Improved dies for bending sheet metal and strips of other flexible materials

Country Status (1)

Country Link
GB (1) GB743783A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0237234A2 (en) * 1986-02-26 1987-09-16 Sekisui Kagaku Kogyo Kabushiki Kaisha Method for the production of a composite pipe and an apparatus for carrying out said method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0237234A2 (en) * 1986-02-26 1987-09-16 Sekisui Kagaku Kogyo Kabushiki Kaisha Method for the production of a composite pipe and an apparatus for carrying out said method
EP0237234A3 (en) * 1986-02-26 1989-03-08 Sekisui Kagaku Kogyo Kabushiki Kaisha Method for the production of a composite pipe and an apparatus for carrying out said method

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