GB518008A - Improvements in and relating to methods of insulating electric conductors - Google Patents

Improvements in and relating to methods of insulating electric conductors

Info

Publication number
GB518008A
GB518008A GB25511/38A GB2551138A GB518008A GB 518008 A GB518008 A GB 518008A GB 25511/38 A GB25511/38 A GB 25511/38A GB 2551138 A GB2551138 A GB 2551138A GB 518008 A GB518008 A GB 518008A
Authority
GB
United Kingdom
Prior art keywords
group
electric conductors
aug
resin
matter
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
GB25511/38A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co Ltd
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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB518008A publication Critical patent/GB518008A/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)
  • Organic Insulating Materials (AREA)

Abstract

518,008. Moulding plastic materials. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 31, 1938, No. 25511. Convention date, Aug. 31, 1937. Drawings to Specification. [Class 87 (ii)] [Also in Group IV] . Electric conductors are insulated by extruding thereon a solvent-free non-aqueous polyvinyl acetal resin or composition heated to plasticity, with preheating and/or after-heating of the conductor, to temperatures lower than, equal to or above the extrusion temperature of the resin which may be thermo-hardened by the treatment. There may be used the resin compositions of Specification 518,006, [Group IV]. The coating may be applied to conductors already enamelled. Specifications 351,082<*> and 460,347, [both in Group IV], are referred to. The Specification as open to inspection under Sect. 91 refers also to the subject-matter of Specification 518,006, as open to inspection under Sect. 91. This subject-matter does not appear in the Specification as accepted.
GB25511/38A 1937-08-31 1938-08-31 Improvements in and relating to methods of insulating electric conductors Expired GB518008A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US518008XA 1937-08-31 1937-08-31

Publications (1)

Publication Number Publication Date
GB518008A true GB518008A (en) 1940-02-14

Family

ID=21973446

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25511/38A Expired GB518008A (en) 1937-08-31 1938-08-31 Improvements in and relating to methods of insulating electric conductors

Country Status (1)

Country Link
GB (1) GB518008A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1017235B (en) * 1957-01-19 1957-10-10 Norddeutsche Seekabelwerke Ag Method and device for preheating the conductor during the manufacture of plastic-insulated cores using a plastic press

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1017235B (en) * 1957-01-19 1957-10-10 Norddeutsche Seekabelwerke Ag Method and device for preheating the conductor during the manufacture of plastic-insulated cores using a plastic press

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