GB659307A - Improvements in methods of and apparatus for forming tubes or pipes - Google Patents

Improvements in methods of and apparatus for forming tubes or pipes

Info

Publication number
GB659307A
GB659307A GB1375/49A GB137549A GB659307A GB 659307 A GB659307 A GB 659307A GB 1375/49 A GB1375/49 A GB 1375/49A GB 137549 A GB137549 A GB 137549A GB 659307 A GB659307 A GB 659307A
Authority
GB
United Kingdom
Prior art keywords
bending
die
tube
jan
dies
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
GB1375/49A
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.)
Fort Pitt Bridge Works
Original Assignee
Fort Pitt Bridge Works
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 Fort Pitt Bridge Works filed Critical Fort Pitt Bridge Works
Publication of GB659307A publication Critical patent/GB659307A/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
    • B21C37/08—Making tubes with welded or soldered seams
    • B21C37/0815—Making tubes with welded or soldered seams without continuous longitudinal movement of the sheet during the bending operation

Landscapes

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

Abstract

659,307. Making longitudinally-jointed tubes. FORT PITT BRIDGE WORKS. Jan. 18, 1949, No. 1375. Convention date, Jan. 23, 1948. [Classes 83 (ii) and 83 (iv)] Angular bending; uniting by fusion.-A longitudinally seamed tube is made by bending the marginal edge 22 of a strip to cylindrical form between dies 19, 21, then bending the opposite edge in the same dies and finally bending the centre to form an open seamed tube which is stripped axially from the die 19. The die 21 freely supports the strip prior to each bending operation. The seam may be welded by continuous electrical or other seam welding apparatus of known form. The die 19 is attached to a holder by a thin neck 201 and bends a third of the tube at each operation. The press used may be as set forth in Specification 572,845.
GB1375/49A 1948-01-23 1949-01-18 Improvements in methods of and apparatus for forming tubes or pipes Expired GB659307A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US659307XA 1948-01-23 1948-01-23

Publications (1)

Publication Number Publication Date
GB659307A true GB659307A (en) 1951-10-24

Family

ID=22066100

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1375/49A Expired GB659307A (en) 1948-01-23 1949-01-18 Improvements in methods of and apparatus for forming tubes or pipes

Country Status (1)

Country Link
GB (1) GB659307A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1083207B (en) * 1955-04-25 1960-06-15 Kocks Gmbh Friedrich Combined bending and feeding device for continuous and step-by-step reshaping of strips into slotted tubes
DE1118127B (en) * 1959-05-06 1961-11-30 Cie De Pont A Mousson Sa Multiple press for batch-wise bending of sheet metal to be formed into slit-tube-shaped bodies
DE1124905B (en) * 1959-07-08 1962-03-08 Kocks Gmbh Friedrich A device consisting of a shell-shaped die and a liftable and lowerable punch for the production of slotted tubes that are later to be welded into seam tubes
DE1195707B (en) * 1958-12-15 1965-07-01 Kocks Gmbh Friedrich Forming tool for the intermittent manufacture of slotted tubes from sheet metal

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1083207B (en) * 1955-04-25 1960-06-15 Kocks Gmbh Friedrich Combined bending and feeding device for continuous and step-by-step reshaping of strips into slotted tubes
DE1195707B (en) * 1958-12-15 1965-07-01 Kocks Gmbh Friedrich Forming tool for the intermittent manufacture of slotted tubes from sheet metal
DE1118127B (en) * 1959-05-06 1961-11-30 Cie De Pont A Mousson Sa Multiple press for batch-wise bending of sheet metal to be formed into slit-tube-shaped bodies
DE1124905B (en) * 1959-07-08 1962-03-08 Kocks Gmbh Friedrich A device consisting of a shell-shaped die and a liftable and lowerable punch for the production of slotted tubes that are later to be welded into seam tubes

Similar Documents

Publication Publication Date Title
GB1431210A (en) Stepped wheel rims and a method of and apparatus for making them
GB659307A (en) Improvements in methods of and apparatus for forming tubes or pipes
ES205095A1 (en) Tubing or method of making tubing
US1859990A (en) Metal extrusion press
GB456403A (en) Method and devices for bending pipes
FR1110276A (en) Device for the manufacture of tubes from a sheet of sheet metal wound in a helix, by welding the joint
GB1529385A (en) Tubes of non-circular cross-section and the manufacture thereof
GB652289A (en) Method and apparatus for electric welding pipe
GB727684A (en) Improvements in metal tubing and method of making the same
GB412075A (en) Improvements in metal elbow constructions and method of producing the same
JPS53132461A (en) Forming method for tubular body with polygonal head
GB624446A (en) Manufacture of pipes and tubes
GB652419A (en) Method of shaping metallic bodies
GB1286369A (en) Improvements in and relating to the manufacture of tubes
GB803506A (en) Improvements in or relating to connecting tubes to plates, leaders, containers and the like
GB685671A (en) Method of making welded tubing from strip metal stock
SU867448A1 (en) Line for producing welded pipes
GB680596A (en) Process for shaping tubes
GB1322929A (en) Short-radius squeeze bending apparatus
JPS5570413A (en) Manufacture of large diameter welded pipe
GB900201A (en) Method and apparatus for making welded tubes
GB634253A (en) Process for the continuous manufacture in the cold state of metal tubes of small diameter having a relatively thick wall
GB724445A (en) Method of and apparatus for shaping hollow metal bodies
ES249876A1 (en) Improvements relating to the manufacture of pipes
GB384465A (en) Improvements in or relating to the joining of pipes or tubes