GB689252A - Improvements in the extrusion of coverings of thermo-plastic material around wire - Google Patents

Improvements in the extrusion of coverings of thermo-plastic material around wire

Info

Publication number
GB689252A
GB689252A GB16935/50A GB1693550A GB689252A GB 689252 A GB689252 A GB 689252A GB 16935/50 A GB16935/50 A GB 16935/50A GB 1693550 A GB1693550 A GB 1693550A GB 689252 A GB689252 A GB 689252A
Authority
GB
United Kingdom
Prior art keywords
tube
jacket
heated
wire
water
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
GB16935/50A
Inventor
Eustace Tunnicliff
Ronald Barlow
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.)
Balfour Beatty PLC
Original Assignee
BICC PLC
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 BICC PLC filed Critical BICC PLC
Priority to GB16935/50A priority Critical patent/GB689252A/en
Publication of GB689252A publication Critical patent/GB689252A/en
Expired legal-status Critical Current

Links

Classifications

    • 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)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

689,252. Extruding coatings on wire. BRITISH INSULATED CALLENDER'S CABLES, Ltd. July 6, 1951 [July 6, 1950], No. 16935/50. Addition to 564,324. Class 87 (ii). Relates to the controlled cooling of extruded polyethylene coatings on wire. The coated wire issues from an extrusion nozzle 1 at about 165‹ C., and passes through a tube 4 to which it is coupled by a bayonet joint 2, 3. From tube 4 it passes through a tube 6 and out through a gland 7. The tube 6 is filled with water under pressure, water entering at 13 and leaving at 14 through a valve 15. The tube is heated by water or electric jackets 9, 10, lagged at two portions 11, 11', and is not heated at the gland end portion 20. The water entering at 13 is at about 20‹ C. and as it travels from right to left it is raised to 90‹ C. by jacket 10, remains at about 90‹ C. within the first lagged portion 11', is raised to 105‹ C. by jacket 9, and flows out at about 105‹ C. through pipe 14. The result is that the polyethylene coating is cooled from 165‹ C. to between 105 and 110‹ C. within jacket 9, is solidified within lagging 11', and in zone 20 is cooled to 35‹ C. Instead of a closed tube 6 an open trough may be used if the cooling liquid is capable of being heated to 105‹ C. without boiling.
GB16935/50A 1950-07-06 1950-07-06 Improvements in the extrusion of coverings of thermo-plastic material around wire Expired GB689252A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB16935/50A GB689252A (en) 1950-07-06 1950-07-06 Improvements in the extrusion of coverings of thermo-plastic material around wire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB16935/50A GB689252A (en) 1950-07-06 1950-07-06 Improvements in the extrusion of coverings of thermo-plastic material around wire

Publications (1)

Publication Number Publication Date
GB689252A true GB689252A (en) 1953-03-25

Family

ID=10086321

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16935/50A Expired GB689252A (en) 1950-07-06 1950-07-06 Improvements in the extrusion of coverings of thermo-plastic material around wire

Country Status (1)

Country Link
GB (1) GB689252A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2138429A (en) * 1983-03-15 1984-10-24 Standard Telephones Cables Ltd Plastics coated glass optical fibres

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2138429A (en) * 1983-03-15 1984-10-24 Standard Telephones Cables Ltd Plastics coated glass optical fibres

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