[go: up one dir, main page]

GB757745A - Improvements in or relating to overhead line conductors and methods of manufacturing such conductors - Google Patents

Improvements in or relating to overhead line conductors and methods of manufacturing such conductors

Info

Publication number
GB757745A
GB757745A GB531354A GB531354A GB757745A GB 757745 A GB757745 A GB 757745A GB 531354 A GB531354 A GB 531354A GB 531354 A GB531354 A GB 531354A GB 757745 A GB757745 A GB 757745A
Authority
GB
United Kingdom
Prior art keywords
rolls
diameter
corrugating
reduced
core
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
GB531354A
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.)
HERBERT WILLIAM BENJAMIN GARDI
Pirelli General Cable Works Ltd
Pirelli General Cable Works
Original Assignee
HERBERT WILLIAM BENJAMIN GARDI
Pirelli General Cable Works Ltd
Pirelli General Cable 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 HERBERT WILLIAM BENJAMIN GARDI, Pirelli General Cable Works Ltd, Pirelli General Cable Works filed Critical HERBERT WILLIAM BENJAMIN GARDI
Priority to GB531354A priority Critical patent/GB757745A/en
Publication of GB757745A publication Critical patent/GB757745A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
    • H01B13/26—Sheathing; Armouring; Screening; Applying other protective layers by winding, braiding or longitudinal lapping
    • H01B13/2613—Sheathing; Armouring; Screening; Applying other protective layers by winding, braiding or longitudinal lapping by longitudinal lapping
    • 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
    • B21C37/20—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls
    • B21C37/207—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls with helical guides

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing Of Electric Cables (AREA)
  • Wire Processing (AREA)

Abstract

757,745. Sheathing electric cables. PIRELLI-GENERAL CABLE WORKS, Ltd., and GARDINER, H. W. B. Dec. 20, 1954 [Feb. 23, 1954], No. 5313/54. Classes 83 (2) and 83 (4). Corrugating ; rolling.-In a method of making overhead electric cables a bare stranded wire core is sheathed by laterally bending a metal strip and butt-welding the longitudinal seam, the tube so formed being reduced in diameter to bring it into contact with the core. The strip 3, Fig. 2a, straightened in rolls 5, 6 and edge trimmed by shears 7 is bent round the core 1 by rolls 12, 16 and seam welded by an argon or helium shielded electric-arc welding-torch 23, Fig. 2b. The diameter is reduced by a corrugating tool comprising a rotary head 30 carrying a corrugating roll 34, Fig. 3, and three backing rolls 35 while torsion rolls 25, 27 hold the work against rotation. In a modification the diameter of the sheath is reduced uniformly along its length by cylindrical rolls 36, Fig. 4, rotating on parallel axes while the work is subjected to an end thrust so that the length of the sheath is substantially unaltered during its reduction. Each roll 36 preferably has a leading tapered portion.
GB531354A 1954-02-23 1954-02-23 Improvements in or relating to overhead line conductors and methods of manufacturing such conductors Expired GB757745A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB531354A GB757745A (en) 1954-02-23 1954-02-23 Improvements in or relating to overhead line conductors and methods of manufacturing such conductors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB531354A GB757745A (en) 1954-02-23 1954-02-23 Improvements in or relating to overhead line conductors and methods of manufacturing such conductors

Publications (1)

Publication Number Publication Date
GB757745A true GB757745A (en) 1956-09-26

Family

ID=9793758

Family Applications (1)

Application Number Title Priority Date Filing Date
GB531354A Expired GB757745A (en) 1954-02-23 1954-02-23 Improvements in or relating to overhead line conductors and methods of manufacturing such conductors

Country Status (1)

Country Link
GB (1) GB757745A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2942925A1 (en) * 1979-10-24 1981-05-07 Kabel- und Metallwerke Gutehoffnungshütte AG, 3000 Hannover HUMIDITY PROTECTED ELECTRIC CABLE
GB2166984A (en) * 1984-11-12 1986-05-21 Omni Spectra Ltd Cables

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2942925A1 (en) * 1979-10-24 1981-05-07 Kabel- und Metallwerke Gutehoffnungshütte AG, 3000 Hannover HUMIDITY PROTECTED ELECTRIC CABLE
GB2166984A (en) * 1984-11-12 1986-05-21 Omni Spectra Ltd Cables

Similar Documents

Publication Publication Date Title
US3213894A (en) Methods of and apparatus for connecting a strand and an elongated member and methods of manufacturing such apparatus
US2156772A (en) Method of splicing a cable
GB757745A (en) Improvements in or relating to overhead line conductors and methods of manufacturing such conductors
US5924194A (en) Method of producing an overhead contact wire for supplying power to electrically driven vehicles
GB884747A (en) Improvements in or relating to submarine cables
US2936357A (en) Manufacture of metal sheathed cable and the like
US3625262A (en) Conductor wrapping bit and method for forming a surface thereon
US2490023A (en) Welding electrode
US2929286A (en) Apparatus for simultaneously stripping jacketing and shielding sheaths from twisted-pair cable
JPS6015015A (en) Processing equipment of metallic tube with grooved inner surface
US3245139A (en) Method of repairing corrugated tubing about a core
GB973407A (en) Manufacture of electrically conductive cable
JPS60111211A (en) Manufacture of metallic tube for optical fiber cable
GB798934A (en) Improvements relating to metal sheathed cores
FR2445001A1 (en) METHOD AND MACHINE FOR COATING THE CORE OF AN ELECTRICAL CABLE WITH A METAL SHEATH
GB341887A (en) Improvements relating to the manufacture of hlongated metal bodies comprising a core and smooth shell
US3949156A (en) Floor cable with folded portions for making branch connections and method of producing same
JPH01292775A (en) Connecting method for stranded conductor
JPS5852406B2 (en) Lead wire coating intermediate strip method
GB741234A (en) Improvements in or relating to methods of making electric cable sheaths
JPS61138481A (en) Method of connecting conductor of power cable and joint obtained by the same
JPS58132389A (en) Pin-hole repairing method in manufacture process of aluminum pipe
GB792008A (en) Improvements relating to means for jointing wires
US4513500A (en) Method of forming a wire splice
JPS60213326A (en) Straightening method of wire rod