GB676543A - Improvements in the moulding and jointing of thermoplastic materials for example in the jointing of electric cables - Google Patents

Improvements in the moulding and jointing of thermoplastic materials for example in the jointing of electric cables

Info

Publication number
GB676543A
GB676543A GB2913549A GB2913549A GB676543A GB 676543 A GB676543 A GB 676543A GB 2913549 A GB2913549 A GB 2913549A GB 2913549 A GB2913549 A GB 2913549A GB 676543 A GB676543 A GB 676543A
Authority
GB
United Kingdom
Prior art keywords
mould
moulding
bodies
parts
jointing
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
GB2913549A
Inventor
Arthur Albert William Barnes
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.)
Telegraph Construction and Maintenance Co Ltd
Original Assignee
Telegraph Construction and Maintenance 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 Telegraph Construction and Maintenance Co Ltd filed Critical Telegraph Construction and Maintenance Co Ltd
Priority to GB2913549A priority Critical patent/GB676543A/en
Publication of GB676543A publication Critical patent/GB676543A/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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14639—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles for obtaining an insulating effect, e.g. for electrical components
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/1703—Introducing an auxiliary fluid into the mould
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00—Cable fittings
    • H02G15/08—Cable junctions
    • H02G15/18—Cable junctions protected by sleeves, e.g. for communication cable
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/72—Heating or cooling
    • B29C45/73—Heating or cooling of the mould
    • B29C2045/7375—Heating or cooling of the mould heating a mould surface by a heated gas

Abstract

676,543. Injection-moulding; making cable joints. TELEGRAPH CONSTRUCTION & MAINTENANCE CO., Ltd. Feb. 14, 1951 [Nov. 14, 1949], No. 29135/49. Class 87(ii) A method of uniting or bonding thermoplastic bodies or bodies having a thermoplastic coating comprises enveloping the bodies (or the parts thereof adjacent the joint to be made) in a mould casing, injecting hot gas into the mould casing to soften the thermoplastic material, and finally injecting thermoplastic material to form the bond between the bodies or build up the coating thereon. The invention is illustrated in connection with the jointing of two electric cable conductors C, C' provided with insulation A which may be polythene. The bared ends of the conductors are joined at B by soldering or brazing, with or without a sleeve, ferrule or the like 2, and a mould in two parts 3, 4 (or more than two parts) is assembled around this joint. Packing and heat-insulating sleeves 9 are provided at the mould ends. Hot gas (air or nitrogen) is then blown into the mould through orifice 6 and escapes through holes 7. A portable electrically-heated blower may be used. The hot gas softens that part 1 of the insulation that is within the mould. Polythene is then injected through orifice 6 into the mould, as by a hand-operated plunger type injector. The injection may be continued until the material has cooled. Fins 8 on the mould facilitate cooling. The injection orifice may open tangentially into the mould. Joints may thus be made in the field or in manholes. Large mouldings of polythene may be made by using a small mould to make part of the moulding and then moulding further parts thereonto by the method of the invention; in a similar way intricate mouldings may be made in two or more operations.
GB2913549A 1949-11-14 1949-11-14 Improvements in the moulding and jointing of thermoplastic materials for example in the jointing of electric cables Expired GB676543A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2913549A GB676543A (en) 1949-11-14 1949-11-14 Improvements in the moulding and jointing of thermoplastic materials for example in the jointing of electric cables

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2913549A GB676543A (en) 1949-11-14 1949-11-14 Improvements in the moulding and jointing of thermoplastic materials for example in the jointing of electric cables

Publications (1)

Publication Number Publication Date
GB676543A true GB676543A (en) 1952-07-30

Family

ID=10286722

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2913549A Expired GB676543A (en) 1949-11-14 1949-11-14 Improvements in the moulding and jointing of thermoplastic materials for example in the jointing of electric cables

Country Status (1)

Country Link
GB (1) GB676543A (en)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2989784A (en) * 1957-10-04 1961-06-27 Bell Telephone Labor Inc Method of forming a plug of high melting point plastic bonded to a low melting point plastic
US3142716A (en) * 1961-07-21 1964-07-28 Northwest Ind Ltd Process utilizing shuttle moulds
US7459118B2 (en) 2004-03-25 2008-12-02 Denso Corporation Heated medium supplying method and structure for secondary molding of resin molded component
WO2012048195A1 (en) * 2010-10-08 2012-04-12 Shell Oil Company Compaction of electrical insulation for joining insulated conductors
US8257112B2 (en) 2009-10-09 2012-09-04 Shell Oil Company Press-fit coupling joint for joining insulated conductors
US8355623B2 (en) 2004-04-23 2013-01-15 Shell Oil Company Temperature limited heaters with high power factors
US8381806B2 (en) 2006-04-21 2013-02-26 Shell Oil Company Joint used for coupling long heaters
US8485256B2 (en) 2010-04-09 2013-07-16 Shell Oil Company Variable thickness insulated conductors
US8536497B2 (en) 2007-10-19 2013-09-17 Shell Oil Company Methods for forming long subsurface heaters
US8586867B2 (en) 2010-10-08 2013-11-19 Shell Oil Company End termination for three-phase insulated conductors
US8857051B2 (en) 2010-10-08 2014-10-14 Shell Oil Company System and method for coupling lead-in conductor to insulated conductor
DE102013101601B4 (en) * 2013-02-18 2014-12-31 Sick Ag Cable fixing for sensor housing
US8939207B2 (en) 2010-04-09 2015-01-27 Shell Oil Company Insulated conductor heaters with semiconductor layers
US8943686B2 (en) 2010-10-08 2015-02-03 Shell Oil Company Compaction of electrical insulation for joining insulated conductors
US9022118B2 (en) 2008-10-13 2015-05-05 Shell Oil Company Double insulated heaters for treating subsurface formations
US9048653B2 (en) 2011-04-08 2015-06-02 Shell Oil Company Systems for joining insulated conductors
US9080409B2 (en) 2011-10-07 2015-07-14 Shell Oil Company Integral splice for insulated conductors
US9080917B2 (en) 2011-10-07 2015-07-14 Shell Oil Company System and methods for using dielectric properties of an insulated conductor in a subsurface formation to assess properties of the insulated conductor
US9226341B2 (en) 2011-10-07 2015-12-29 Shell Oil Company Forming insulated conductors using a final reduction step after heat treating
US9466896B2 (en) 2009-10-09 2016-10-11 Shell Oil Company Parallelogram coupling joint for coupling insulated conductors
CN115319218A (en) * 2022-07-26 2022-11-11 云南电网有限责任公司昆明供电局 Low-melting-point solder cable joint wire core connection method loading driving voltage

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2989784A (en) * 1957-10-04 1961-06-27 Bell Telephone Labor Inc Method of forming a plug of high melting point plastic bonded to a low melting point plastic
US3142716A (en) * 1961-07-21 1964-07-28 Northwest Ind Ltd Process utilizing shuttle moulds
US7459118B2 (en) 2004-03-25 2008-12-02 Denso Corporation Heated medium supplying method and structure for secondary molding of resin molded component
US8355623B2 (en) 2004-04-23 2013-01-15 Shell Oil Company Temperature limited heaters with high power factors
US8381806B2 (en) 2006-04-21 2013-02-26 Shell Oil Company Joint used for coupling long heaters
US8536497B2 (en) 2007-10-19 2013-09-17 Shell Oil Company Methods for forming long subsurface heaters
US9022118B2 (en) 2008-10-13 2015-05-05 Shell Oil Company Double insulated heaters for treating subsurface formations
US8485847B2 (en) 2009-10-09 2013-07-16 Shell Oil Company Press-fit coupling joint for joining insulated conductors
US8257112B2 (en) 2009-10-09 2012-09-04 Shell Oil Company Press-fit coupling joint for joining insulated conductors
US9466896B2 (en) 2009-10-09 2016-10-11 Shell Oil Company Parallelogram coupling joint for coupling insulated conductors
US8816203B2 (en) 2009-10-09 2014-08-26 Shell Oil Company Compacted coupling joint for coupling insulated conductors
US8939207B2 (en) 2010-04-09 2015-01-27 Shell Oil Company Insulated conductor heaters with semiconductor layers
US8502120B2 (en) 2010-04-09 2013-08-06 Shell Oil Company Insulating blocks and methods for installation in insulated conductor heaters
US8967259B2 (en) 2010-04-09 2015-03-03 Shell Oil Company Helical winding of insulated conductor heaters for installation
US8485256B2 (en) 2010-04-09 2013-07-16 Shell Oil Company Variable thickness insulated conductors
US8859942B2 (en) 2010-04-09 2014-10-14 Shell Oil Company Insulating blocks and methods for installation in insulated conductor heaters
US8732946B2 (en) 2010-10-08 2014-05-27 Shell Oil Company Mechanical compaction of insulator for insulated conductor splices
US9337550B2 (en) 2010-10-08 2016-05-10 Shell Oil Company End termination for three-phase insulated conductors
US8857051B2 (en) 2010-10-08 2014-10-14 Shell Oil Company System and method for coupling lead-in conductor to insulated conductor
US8943686B2 (en) 2010-10-08 2015-02-03 Shell Oil Company Compaction of electrical insulation for joining insulated conductors
US8586866B2 (en) 2010-10-08 2013-11-19 Shell Oil Company Hydroformed splice for insulated conductors
WO2012048195A1 (en) * 2010-10-08 2012-04-12 Shell Oil Company Compaction of electrical insulation for joining insulated conductors
US9755415B2 (en) 2010-10-08 2017-09-05 Shell Oil Company End termination for three-phase insulated conductors
US8586867B2 (en) 2010-10-08 2013-11-19 Shell Oil Company End termination for three-phase insulated conductors
US9048653B2 (en) 2011-04-08 2015-06-02 Shell Oil Company Systems for joining insulated conductors
US9080917B2 (en) 2011-10-07 2015-07-14 Shell Oil Company System and methods for using dielectric properties of an insulated conductor in a subsurface formation to assess properties of the insulated conductor
US9226341B2 (en) 2011-10-07 2015-12-29 Shell Oil Company Forming insulated conductors using a final reduction step after heat treating
US9080409B2 (en) 2011-10-07 2015-07-14 Shell Oil Company Integral splice for insulated conductors
DE102013101601B4 (en) * 2013-02-18 2014-12-31 Sick Ag Cable fixing for sensor housing
CN115319218A (en) * 2022-07-26 2022-11-11 云南电网有限责任公司昆明供电局 Low-melting-point solder cable joint wire core connection method loading driving voltage

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