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GB873646A - Machine for bending bars and tubes - Google Patents

Machine for bending bars and tubes

Info

Publication number
GB873646A
GB873646A GB794559A GB794559A GB873646A GB 873646 A GB873646 A GB 873646A GB 794559 A GB794559 A GB 794559A GB 794559 A GB794559 A GB 794559A GB 873646 A GB873646 A GB 873646A
Authority
GB
United Kingdom
Prior art keywords
head
piston
pulley
bending
cable
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
GB794559A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB794559A priority Critical patent/GB873646A/en
Publication of GB873646A publication Critical patent/GB873646A/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
    • B21D7/00Bending rods, profiles, or tubes
    • B21D7/02Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

873,646. Angular bending. HOWELL, N. March 7, 1960 [March 6, 1959], No. 7945/59. Class 83 (4). A machine for bending bars and tubes incorporates a rotatable bending head associated with a former, a double-acting cylinder and piston device and a differential pulley system incorporationg two cables operatively connecting the cylinder and piston device with the bending head the arrangement being such that movement of the piston in one direction or the other tensions one or other of the cables to cause the bending head to rotate in one direction or the other. A bending head 7 carries rollers 12 adjusted by a screw device 11, which bend a bar or tube, clamped to the machine table, around the former fitted to a pin 8 around which the bending head 7 is rotated by a doubleacting cylinder 2 and piston 3. The piston 3 is drivingly connected to the head 7 by two cables 13, 16. The cable 13 is secured to one end 15 of the machine frame and at the other end to a pulley 9, fixed to the head 7 and coaxial with the pin 8, and runs over a pulley 6 carried by a rod 4 of the piston 3. The cable 16 is secured at one end 19 to the piston-rod 4 and at the other end to a pulley 10, fixed to the head 7 and of half the diameter of the pulley 9, and runs over an idler pulley 18 on the machine frame. Thus as the piston 3 moves away from the bending head the pulley 6 will move the cable 13 to rotate the head 7 in one direction and as the piston 3 moves back towards the bending head it pulls the cable 16 to rotate the head 7 in the opposite direction.
GB794559A 1959-03-06 1959-03-06 Machine for bending bars and tubes Expired GB873646A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB794559A GB873646A (en) 1959-03-06 1959-03-06 Machine for bending bars and tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB794559A GB873646A (en) 1959-03-06 1959-03-06 Machine for bending bars and tubes

Publications (1)

Publication Number Publication Date
GB873646A true GB873646A (en) 1961-07-26

Family

ID=9842788

Family Applications (1)

Application Number Title Priority Date Filing Date
GB794559A Expired GB873646A (en) 1959-03-06 1959-03-06 Machine for bending bars and tubes

Country Status (1)

Country Link
GB (1) GB873646A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4000020A1 (en) * 1988-12-30 1990-07-05 Usui Kokusai Sangyo Kk Small metal pipe-bending machine - has die in sections curving to lesser radii than finished article
US10518315B2 (en) * 2011-07-26 2019-12-31 Medtronic Vascular, Inc. Apparatus and method for forming a wave form for a stent from a wire

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4000020A1 (en) * 1988-12-30 1990-07-05 Usui Kokusai Sangyo Kk Small metal pipe-bending machine - has die in sections curving to lesser radii than finished article
GB2226784A (en) * 1988-12-30 1990-07-11 Usui Kokusai Sangyo Kk Apparatus for bending thin metallic pipes.
GB2226784B (en) * 1988-12-30 1993-02-24 Usui Kokusai Sangyo Kk Device for bending thin metallic pipe or rod
US10518315B2 (en) * 2011-07-26 2019-12-31 Medtronic Vascular, Inc. Apparatus and method for forming a wave form for a stent from a wire

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