GB792338A - Improvements in or relating to processes for the manufacture of multi-core telecommunication cables - Google Patents

Improvements in or relating to processes for the manufacture of multi-core telecommunication cables

Info

Publication number
GB792338A
GB792338A GB501656A GB501656A GB792338A GB 792338 A GB792338 A GB 792338A GB 501656 A GB501656 A GB 501656A GB 501656 A GB501656 A GB 501656A GB 792338 A GB792338 A GB 792338A
Authority
GB
United Kingdom
Prior art keywords
cores
conductors
bobbin
separate
coated
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
GB501656A
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.)
Siemens and Halske AG
Siemens AG
Original Assignee
Siemens and Halske AG
Siemens AG
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 Siemens and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Publication of GB792338A publication Critical patent/GB792338A/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
    • H01B13/06—Insulating conductors or cables
    • H01B13/14—Insulating conductors or cables by extrusion
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
    • B29C44/32—Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements
    • B29C44/322—Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements the preformed parts being elongated inserts, e.g. cables
    • 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
    • H01B13/0228—Stranding-up by a twisting pay-off and take-up device
    • 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
    • H01B13/06—Insulating conductors or cables

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Processes Specially Adapted For Manufacturing Cables (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

792,338. Extrusion-coating telecommunication conductors. SIEMENS & HALSKE AKT.- GES. Feb. 17, 1956 [Feb. 19, 1955], No. 5016/56. Class 87(2). [Also in Group XXXVI] In a process for making multi-core telecommunication cables, the conductors of a group of cores are individually but simultaneously coated with insulating material by means of a single extrusion press, and then the insulating material is converted to cellular material. Fig. 2 illustrates the production of a single stai quad. Four bare conductors a, b, c, d, run from bobbins 24 through a guide 25 to an extrusion press 26 from which they emerge coated with, e.g., polythene. The coated conductors (cores) pass through a zone 27 in which the polythene is foamed by heating to give it a cellular character, and then through a zone 28 in which the cellular material is cooled to harden it, and finally through a twisting die 32 and so to a drawing drum 30 and winding bobbin 31. Fig. 1 shows the single star quad thus made, covered with other material 11, 12. In a modified procedure the cores may be wound on to a bobbin without being twisted and then, in a separate operation, unwound from the bobbin and twisted. Multiple twin star quads may be made by winding pairs of foamed and cooled cores, each pair being wound on a separate bobbin, the twisting of the two cores of each pair and of the pairs to quads being then carried out in a separate operation. The Fig. 2 apparatus may be modified in that (a) the cores may pass through gauging dies in or after the cooling zone 28 ; (b) the four cores may be led to a twisting die separate from frame 29, then wound with tape and finally led to a drawing drum and winding bobbin ; (c) a separate guide for each core may be arranged between the cooling zone and die 32. The bare conductors may be pre-twisted before being coated. The insulation on each core may be of a different colour, colouring material being supplied through channels on the inside of the extrusion nozzles, or may be given a distinguishing marking after they leave the extrusion press.
GB501656A 1955-02-19 1956-02-17 Improvements in or relating to processes for the manufacture of multi-core telecommunication cables Expired GB792338A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES42756A DE1106385B (en) 1955-02-19 1955-02-19 Process for the production of twisted telecommunication cable core groups, in particular star fours, with foam-insulated cores

Publications (1)

Publication Number Publication Date
GB792338A true GB792338A (en) 1958-03-26

Family

ID=7484455

Family Applications (1)

Application Number Title Priority Date Filing Date
GB501656A Expired GB792338A (en) 1955-02-19 1956-02-17 Improvements in or relating to processes for the manufacture of multi-core telecommunication cables

Country Status (3)

Country Link
DE (1) DE1106385B (en)
FR (1) FR1141223A (en)
GB (1) GB792338A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5814768A (en) * 1996-06-03 1998-09-29 Commscope, Inc. Twisted pairs communications cable
CN103274246A (en) * 2013-05-31 2013-09-04 江苏国能电力设备有限公司 Paper covering machine
WO2017157521A1 (en) * 2016-03-15 2017-09-21 Rosenberger Hochfrequenztechnik Gmbh & Co. Kg Cable for transmitting electrical signals
CN110759171A (en) * 2019-11-04 2020-02-07 安徽华上电缆科技有限公司 Open-air portable rubber cable bundling machine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3722203A (en) * 1969-11-15 1973-03-27 Oki Electric Cable Method for continuously manufacturing a communication cable

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE955615C (en) * 1942-07-04 1957-01-03 Siemens Ag Telecommunication cables with one or more twisted wire groups
DE849721C (en) * 1950-01-03 1952-09-18 Felten & Guilleaume Carlswerk Telecommunication cable used at high frequency

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5814768A (en) * 1996-06-03 1998-09-29 Commscope, Inc. Twisted pairs communications cable
CN103274246A (en) * 2013-05-31 2013-09-04 江苏国能电力设备有限公司 Paper covering machine
WO2017157521A1 (en) * 2016-03-15 2017-09-21 Rosenberger Hochfrequenztechnik Gmbh & Co. Kg Cable for transmitting electrical signals
US10347397B2 (en) 2016-03-15 2019-07-09 Rosenberger Hochfrequenztechnik Gmbh & Co. Kg Cable for transmitting electrical signals
CN110759171A (en) * 2019-11-04 2020-02-07 安徽华上电缆科技有限公司 Open-air portable rubber cable bundling machine

Also Published As

Publication number Publication date
DE1106385B (en) 1961-05-10
FR1141223A (en) 1957-08-28

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