GB571684A - Improved design of power cable and means for producing it - Google Patents

Improved design of power cable and means for producing it

Info

Publication number
GB571684A
GB571684A GB18280/44A GB1828044A GB571684A GB 571684 A GB571684 A GB 571684A GB 18280/44 A GB18280/44 A GB 18280/44A GB 1828044 A GB1828044 A GB 1828044A GB 571684 A GB571684 A GB 571684A
Authority
GB
United Kingdom
Prior art keywords
insulation
die
extrusion
tube
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
GB18280/44A
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 GB18280/44A priority Critical patent/GB571684A/en
Publication of GB571684A publication Critical patent/GB571684A/en
Priority to ES173331A priority patent/ES173331A1/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
    • H01B13/02—Stranding-up
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/05—Filamentary, e.g. strands

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

571,684. Electric cables. SONNENFELD, H. Oct. 26, 1943, No. 18280/44. Divided out of 570,640. [Class 36] [Also in Groups V and XXXIV] In power cables, the cores are pre-twisted and then insulated by extrusion. The cores 'may be sector-shaped to form the cross-section without fillings. The extrusion machine has a die rotated at a speed related to the lay of the core and the speed of extrusion. The core is passed through a tube 22 whilst the thermoplastic insulation is extruded by a screw 14 through a die 1 fixed in a holder 2 which is mounted on ball-bearings 5, 7 and carries a gear-wheel 12 by which it is rotated. The die is continued as a disc 6 between the extrusion head 4 and its cover 3, the thrust being taken by bearings 7 and by compressed air admitted through a bore 17 to between the disc 6 and cover 3, labyrinth passage's 8 ... 11 and packing 18 being provided. The air may be compressed by a pump 16, after which it may be electrically heated at 36 and passed through a valve 23 and tube 22 to prevent the insulation from entering and carbonizing within the tube 22 after the core length has left it. The insulation may consist of natural or synthetic rubber of or artificial resins such as vinyl or cellulose esters or polymers. The suction from pump 16 may be used by pipe 19 and passages 20 to withdraw air bubbles from the insulation as it passes through cylinder 21. Specification 570,640 is referred to. The Provisional Specification states also that the rotatable die-holder may be used for marking tubes with helical reinforcing ribs.
GB18280/44A 1943-10-26 1943-10-26 Improved design of power cable and means for producing it Expired GB571684A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB18280/44A GB571684A (en) 1943-10-26 1943-10-26 Improved design of power cable and means for producing it
ES173331A ES173331A1 (en) 1943-10-26 1946-04-25 IMPROVEMENTS IN ELECTRICAL CABLES FOR VARIOUS DRIVERS WITH MACHINE AND METHODS FOR ITS MANUFACTURE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB18280/44A GB571684A (en) 1943-10-26 1943-10-26 Improved design of power cable and means for producing it

Publications (1)

Publication Number Publication Date
GB571684A true GB571684A (en) 1945-09-04

Family

ID=10109760

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18280/44A Expired GB571684A (en) 1943-10-26 1943-10-26 Improved design of power cable and means for producing it

Country Status (2)

Country Link
ES (1) ES173331A1 (en)
GB (1) GB571684A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017115111A1 (en) * 2015-12-30 2017-07-06 Aster Consult Srl Sectorial aluminum multipolar cable and relative manufacturing process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017115111A1 (en) * 2015-12-30 2017-07-06 Aster Consult Srl Sectorial aluminum multipolar cable and relative manufacturing process

Also Published As

Publication number Publication date
ES173331A1 (en) 1946-06-01

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