GB1577858A - Electric cables - Google Patents

Electric cables Download PDF

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Publication number
GB1577858A
GB1577858A GB12632/77A GB1263277A GB1577858A GB 1577858 A GB1577858 A GB 1577858A GB 12632/77 A GB12632/77 A GB 12632/77A GB 1263277 A GB1263277 A GB 1263277A GB 1577858 A GB1577858 A GB 1577858A
Authority
GB
United Kingdom
Prior art keywords
end portion
sheath
core
cable
lead
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
GB12632/77A
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.)
Danfoss AS
Original Assignee
Danfoss AS
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 Danfoss AS filed Critical Danfoss AS
Publication of GB1577858A publication Critical patent/GB1577858A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/24—Devices affording localised protection against mechanical force or pressure
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B11/00—Treatment of selected parts of textile materials, e.g. partial dyeing
    • D06B11/0073—Treatment of selected parts of textile materials, e.g. partial dyeing of articles
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B11/00—Treatment of selected parts of textile materials, e.g. partial dyeing
    • D06B11/0093—Treatments carried out during or after a regular application of treating materials, in order to get differentiated effects on the textile material
    • D06B11/0096—Treatments carried out during or after a regular application of treating materials, in order to get differentiated effects on the textile material to get a faded look
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
    • D06L4/60—Optical bleaching or brightening
    • D06L4/657—Optical bleaching or brightening combined with other treatments, e.g. finishing, bleaching, softening, dyeing or pigment printing
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/0096—Multicolour dyeing
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B9/00—Binding or sealing ends, e.g. to prevent unravelling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/38—Insulated conductors or cables characterised by their form with arrangements for facilitating removal of insulation

Abstract

To prevent the flexible lead end from spreading out, a snout (2) is separated from the cable sheath (3), which snout remains on the cable end, and is pulled slightly away from the flexible lead cable (1). When the cable end is used, the snout (2) is twisted round its longitudinal axis, and at the same time completely removed. This makes it easier to insert the flexible lead end into a terminal or the like. <IMAGE>

Description

(54) IMPROVEMENTS IN AND RELATING TO ELECTRIC CABLES (71) We, DANFOSS A/S., a Danish Company, of DK-6430 Nordborg, Denmark, do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement: This invention relates to electrical cables comprising two or more electrical connecting leads, each lead comprising a core having a plurality of strands and a sheath covering the core.
In order to form an electrical connection at the end of a lead of such a cable an end portion of the core has to be bared. In the case of a core having a plurality of strands, it is then usual to twist the bared ends of the strands by hand or to solder them together so as to prevent the free ends of the strands from splaying apart before the end of the core is inserted into a terminal or the like to make an electrical connection. Twisting is preferred to soldering because it is less expensive and, because solder is slightly fluent in the cold state, an electrical connection using solder will inevitably become loose in the course of time.
Frequently, the ends of such connection cable leads for electrical appliances which are to be installed later are bared beforehand in the factory with the aid of appropriate tools or machines by severing the rubber or plastics sheath and withdrawing the end portion of the sheath, thereby saving this operating step during installation.
However, without the protection of soldering for the bared ends of the strands there is then the danger that they will splay apart when the appliance or lead is handled or transported and consequently the formation of a connection is made quite difficult during final assembly. This danger is not avoided by twisting the bared ends of the strands in the factory because the twisted end can also be easily splayed apart again during transport or careless handling.
The present invention provides an electrical cable comprising two or more electrical leads, each lead comprising a core having a plurality of strands and a sheath covering the core, the sheath comprising an end portion which has been severed from the remainder of the sheath and left on the core.
To assist subsequent withdrawal, it is preferred if the end portion of each sheath is axially spaced from the remainder of the sheath.
The present invention also provides an electrical appliance including one or more cables according to the invention.
The present invention further provides a package comprising a container and one or more electrical appliances according to the invention arranged in the container.
The present invention further provides a package of electric cables according to the invention.
The present invention further provides a method of treating a plurality of electric cables, each cable comprising two or more leads, each lead comprising a core having a plurality of strands and a sheath covering the core, the method comprising severing an end portion of each sheath from the remainder of its sheath, leaving the end portion of the sheath on the core and then packing the cables while in that condition.
The present invention further provides a method of treating a cable according to the invention in which the end portion of each sheath is turned about its axis to twist that portion of the strands of the core covered by the end portion of the sheath.
Leaving the severed end portion of the sheath on the core prevents splaying of the strands. The end portion of the sheath need only be withdrawn from the core when it is desired to effect an electrical connection.
Twisting of the strands by turning the severed end portion of the sheath facilitates introduction of the bared core into a terminal or soldering of the core to an electrical contact or to the core of another lead.
An electrical lead of an electrical connection cable constructed in accordance with the invention will now be described, by way of example only, with reference to the accompanying drawing, the single figure of which shows a 'lead 1 comprising a core 3 having numerous strands 4 in the form, for example, of fine copper wires, and a preferably flexible sheath or sleeve 2 which may be made of rubber, plastics or other insulating material) which covers the core.
An end portion 2a of the sheath has been severed by machine or manually from the remainder of the sheath 2 and has been partially pulled off the core to leave a small gap, for example 1 mm, between the opposed ends of the sheath proper 2 and the end portion 2a.
The lead 1 forms part of a cable (not shown) comprising an assembly of two or more or the leads 1 enclosed in a common binding or sheathing and it is necessary to strip off an end portion of the common sheathing before treating each lead 1 in the way referred to above.
During transport of, or when handling one or more of the cables comprising the leads 1 the end portion 2a of each lead is left on the end portion of the as core 3 so that the strands 4 will not spread apart.
Similarly during transport of, or when handling an electrical appliance to which is electrically connected one end of one or more of the cables comprising the leads 1 the end portion 2a, of each lead which is at the other end of the cable, is left on so that the strands 4 will not splay apart.
Each end portion 2a is only removed when it is desired electrically to connect the end portion of its core to another electrical appliance plug or terminal.
Shortly before withdrawal or during withdrawal of the end portion 2a the end portion of the strands covered by the end portion 2a can be twisted by turning, for example by hand, the end portion 2a about its axis.
A number of the cables comprising the leads 1 may, after the end portions of the leads have been severed, be packed, for example by wrapping them up or by tying, or binding them together, or by arranging them in a container, in readiness for transportation.
Further one or more electrical appliances, each appliance including one or more cables comprising the leads 1 may, after the end portions of the leads have been severed, be packed, for example in a container, in readiness for transportation.
WHAT WE CLAIM IS: 1. An electrical cable comprising two or more electrical connecting leads, each lead comprising a core having a plurality of strands and a sheath covering the core, the sheath comprising an end portion which has been severed from the remainder of the sheath and left on the core.
2. A cable as claimed in claim 1, in which the end portion of each sheath is axially spaced from the remainder of the sheath.
3. An electric cable comprising two or more electrical connecting leads, each lead being substantially as hereinbefore described with reference to and/or as illustrated by the accompanying drawing.
4. An electrical appliance including one or more cables as claimed in any one of claims 1 to 3.
5. A package comprising a container and one or more electrical appliances arranged in the container, each appliance including one or more cables as claimed in any one of claims 1 to 3.
6. A package of electric cables, each cable being as claimed in any one of claims 1 to 3.
7. A method of treating a plurality of electric cables, each cable comprising two or more leads, each lead comprising a core having a plurality of strands and a sheath covering the core, the method comprising severing an end portion of each sheath from the remainder of its sheath, leaving the end portion of the sheath on the core and then packing the cables while in that condition.
8. A method of treating a cable as claimed in any one of claims 1 to 3, in which the end portion of each sheath is turned about its axis to twist that portion of the strands of the core covered by the end portion of the sheath.
9. A cable which has been treated as claimed in claim 8.
10. A cable as claimed in claim 9, in which the end portion of each sheath is axially spaced from the remainder of the sheath.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (10)

**WARNING** start of CLMS field may overlap end of DESC **. the end portion of the sheath. Leaving the severed end portion of the sheath on the core prevents splaying of the strands. The end portion of the sheath need only be withdrawn from the core when it is desired to effect an electrical connection. Twisting of the strands by turning the severed end portion of the sheath facilitates introduction of the bared core into a terminal or soldering of the core to an electrical contact or to the core of another lead. An electrical lead of an electrical connection cable constructed in accordance with the invention will now be described, by way of example only, with reference to the accompanying drawing, the single figure of which shows a 'lead 1 comprising a core 3 having numerous strands 4 in the form, for example, of fine copper wires, and a preferably flexible sheath or sleeve 2 which may be made of rubber, plastics or other insulating material) which covers the core. An end portion 2a of the sheath has been severed by machine or manually from the remainder of the sheath 2 and has been partially pulled off the core to leave a small gap, for example 1 mm, between the opposed ends of the sheath proper 2 and the end portion 2a. The lead 1 forms part of a cable (not shown) comprising an assembly of two or more or the leads 1 enclosed in a common binding or sheathing and it is necessary to strip off an end portion of the common sheathing before treating each lead 1 in the way referred to above. During transport of, or when handling one or more of the cables comprising the leads 1 the end portion 2a of each lead is left on the end portion of the as core 3 so that the strands 4 will not spread apart. Similarly during transport of, or when handling an electrical appliance to which is electrically connected one end of one or more of the cables comprising the leads 1 the end portion 2a, of each lead which is at the other end of the cable, is left on so that the strands 4 will not splay apart. Each end portion 2a is only removed when it is desired electrically to connect the end portion of its core to another electrical appliance plug or terminal. Shortly before withdrawal or during withdrawal of the end portion 2a the end portion of the strands covered by the end portion 2a can be twisted by turning, for example by hand, the end portion 2a about its axis. A number of the cables comprising the leads 1 may, after the end portions of the leads have been severed, be packed, for example by wrapping them up or by tying, or binding them together, or by arranging them in a container, in readiness for transportation. Further one or more electrical appliances, each appliance including one or more cables comprising the leads 1 may, after the end portions of the leads have been severed, be packed, for example in a container, in readiness for transportation. WHAT WE CLAIM IS:
1. An electrical cable comprising two or more electrical connecting leads, each lead comprising a core having a plurality of strands and a sheath covering the core, the sheath comprising an end portion which has been severed from the remainder of the sheath and left on the core.
2. A cable as claimed in claim 1, in which the end portion of each sheath is axially spaced from the remainder of the sheath.
3. An electric cable comprising two or more electrical connecting leads, each lead being substantially as hereinbefore described with reference to and/or as illustrated by the accompanying drawing.
4. An electrical appliance including one or more cables as claimed in any one of claims 1 to 3.
5. A package comprising a container and one or more electrical appliances arranged in the container, each appliance including one or more cables as claimed in any one of claims 1 to 3.
6. A package of electric cables, each cable being as claimed in any one of claims 1 to 3.
7. A method of treating a plurality of electric cables, each cable comprising two or more leads, each lead comprising a core having a plurality of strands and a sheath covering the core, the method comprising severing an end portion of each sheath from the remainder of its sheath, leaving the end portion of the sheath on the core and then packing the cables while in that condition.
8. A method of treating a cable as claimed in any one of claims 1 to 3, in which the end portion of each sheath is turned about its axis to twist that portion of the strands of the core covered by the end portion of the sheath.
9. A cable which has been treated as claimed in claim 8.
10. A cable as claimed in claim 9, in which the end portion of each sheath is axially spaced from the remainder of the sheath.
GB12632/77A 1976-04-09 1977-03-25 Electric cables Expired GB1577858A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762615481 DE2615481B1 (en) 1976-04-09 1976-04-09 ELECTRIC WIRE

Publications (1)

Publication Number Publication Date
GB1577858A true GB1577858A (en) 1980-10-29

Family

ID=5974919

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12632/77A Expired GB1577858A (en) 1976-04-09 1977-03-25 Electric cables

Country Status (6)

Country Link
CH (2) CH616774A4 (en)
DE (1) DE2615481B1 (en)
DK (1) DK121977A (en)
FR (1) FR2347753A1 (en)
GB (1) GB1577858A (en)
SE (1) SE7703919L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0758735A3 (en) * 1995-08-14 1998-01-07 ICI Americas Inc Pyrotechnic initiator and process of making same

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2901289C2 (en) * 1979-01-13 1985-04-25 kabelmetal electro GmbH, 3000 Hannover Method for stripping and contacting an electrical line
DE3528182C1 (en) * 1985-08-06 1987-01-15 Alfred Haderlapp Device for producing coaxial cables with fitted connecters
DE102006041842A1 (en) * 2006-09-06 2008-03-27 Schäfer Werkzeug- und Sondermaschinenbau GmbH Method and device for inserting a cable end into a cable grommet

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2053222A1 (en) * 1970-10-29 1972-05-04 Sel Method for stripping wires

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0758735A3 (en) * 1995-08-14 1998-01-07 ICI Americas Inc Pyrotechnic initiator and process of making same

Also Published As

Publication number Publication date
DE2615481B1 (en) 1977-10-06
DK121977A (en) 1977-10-10
SE7703919L (en) 1977-10-10
CH616774A4 (en) 1975-12-31
FR2347753A1 (en) 1977-11-04
CH616774A5 (en) 1980-04-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee