GB2161116A - Electric cable manufacture - Google Patents

Electric cable manufacture Download PDF

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Publication number
GB2161116A
GB2161116A GB08515617A GB8515617A GB2161116A GB 2161116 A GB2161116 A GB 2161116A GB 08515617 A GB08515617 A GB 08515617A GB 8515617 A GB8515617 A GB 8515617A GB 2161116 A GB2161116 A GB 2161116A
Authority
GB
United Kingdom
Prior art keywords
plastics
electric cable
insulated conductor
ink
insulated conductors
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.)
Granted
Application number
GB08515617A
Other versions
GB8515617D0 (en
GB2161116B (en
Inventor
Neville James Ditchfield
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
Publication of GB8515617D0 publication Critical patent/GB8515617D0/en
Publication of GB2161116A publication Critical patent/GB2161116A/en
Application granted granted Critical
Publication of GB2161116B publication Critical patent/GB2161116B/en
Expired legal-status Critical Current

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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
    • H01B13/34—Apparatus or processes specially adapted for manufacturing conductors or cables for marking conductors or cables
    • H01B13/341—Apparatus or processes specially adapted for manufacturing conductors or cables for marking conductors or cables using marking wheels, discs, rollers, drums, balls or belts

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Insulated Conductors (AREA)
  • Ropes Or Cables (AREA)

Abstract

In a method of manufacturing an electric cable comprising plastics insulated conductors (1,2) in which the insulated conductors travel towards a machine at which a step in the manufacture is effected, as the plastics insulated conductors travel towards the machine there is applied to the outer surface of each conductor a longitudinally continuous or discontinuous identification insignia. This insignia is of ink which has a colour readily distinguishable from that of the plastic insulation, and which dries or is caused to dry before the insulated conductors are processed by the machine. <IMAGE>

Description

SPECIFICATION Electric cable manufacture This invention relates to the manufacture of an electric cable comprising at least one plastics insulated electric conductor.
According to the invention, in a method of manufacturing an electric cable comprising at least one plastics insulated conductor in which the or each insulated conductor is caused to travel in the direction of its length towards a machine at which a step in the manufacture of the electric cable is effected, as the plastics insulated conductor or at least one of the plastics insulated conductors travels towards the machine, there is applied to the outer surface of its plastics insulation a longitudinally continuous or discontinuous identification insignia of an ink which is of a colour readily distinguishable from that of the plastics insulation and which dries or is caused to dry before the insulated conductor is processed by said machine.
The method is especially, but not exclusively, applicable to the stage of electric cable manufacture at which two or more plastics insulated conductors are caused to travel in the directions of their lengths towards a machine at which the plastics insulated conductors are laid-up together, but it is to be understood that the method is not restricted to this particular application and can, for example, be used as a plastics insulated conductor or a plurality of plastics insulated conductors is or are travelling towards a rewinding machine or re-winding machines.
Where two or more plastics insulated conductors are travelling towards said machine or machines, preferably, the insulated conductors are caused to travel side by side through apparatus which applies a longitudinally continuous or discontinuous identification insignia of said ink to the outer surface of the plastics insulation of each of the advancing insulated conductors.The ink applied to the outer surface of the plastics insulation of each insulated conductor may be the same colour as that applied to the outer surface of the plastics insulation of the or each other insulated conductor but, in some circumstances, the colour of the ink applied to the outer surface of the plastics insulation of one or more than one of the insulated conductors may be different from that of the ink applied to the outer surface of the plastics insulation of the other insulated conductor or of at least one of the other insulated conductors.
Preferably, also, the insulated conductors are caused to travel side by side over at least one roller having a number of circumferentially extending grooves for accommodating the advancing insulated conductors, the longitudinally continuous or discontinuous identification insignia being applied by a transfer wheel or other suitable means which continuously or periodically bears against the outer surface of the plastics insulation of each advancing insulated conductor and which also bears against a roll of micro-cellular plastics material impregnated with a dry ink which, when the roll is heated to a pedetermined temperature, is liquefied and released from the roll on to the transfer wheel from where it is transferred on to the insulated conductor, the ink drying rapidly as it comes into contact with the unheated insulated conductor.It is preferred to employ the dry ink-impregnated roll of mocro-cellular plastics material manufactured and sold by Markham Marking Systems and, in this case, preferably the roll is heated to a temperature of about 96"C.
Where the identification insignia on the or any insulated conductor is longitudinally continuous, it is preferably a substantially straight line;'where the identification insignia is discontinuous it may be a discontinuous line or a legend, e.g. the name of the electric cable manufacturer or legend identifying the cable.
The invention also includes apparatus for use in applying a longitudinally continuous or discontinuous identification insignia of ink to the outer surface of the plastics insulation of an insulated conductor by the improved method hereinbefore described.
The invention further includes an electric cable manufactured by the jmproved method hereinbefore described.
The invention is further iiustrated by a description, by way of example, of a preferred method of manufacturing an electric cable with reference to the accompanying drawing, in which: Figure 1 is a schematic plan view of apparatus for applying insignia to two insulated conductors, and Figure 2 is a schematic side view of the apparatus shown in Fig. 1.
With reference to the drawing, an electric cable having two plastics insulated conductors 1, 2, is manufactured by causing the insulated conductors to travel side by side in a direction A, through apparatus for applying a longitudinal identification insignia, towards a machine (not shown) at which the insulated conductors are laid up together.
In passing through the apparatus for applying a longitudinal identification insignia, the insulated conductors 1, 2 pass over a roller 3 having two circumferentially extending grooves 4, 5 for accommodating the advancing insulated conductors. The longitudinal identification insignia is applied to each insulated conductor by separate transfer wheels 6, 7 each of which bears against a roll 8 of micro-cellular plastics material, as supplied by Markham Marking Systems.
The roll 8 is impregnated with a dry ink of a colour readily distinguishable from that of the plastics insulation and is heated to a temperature of about 96"C, so that the ink is liquefied and released from the roll on to the transfer wheels.
The impregnated identification insignia dries on the insulated conductors before the insulated conductor is laid up to form an electric cable.

Claims (6)

1. A method of manufacturing an electric cable comprising at least one plastics insulated conductor in which the or each insulated conductor is caused to travel in the direction of its length towards a machine at which a step in the manufacture of the electric cable is effected, wherein, as the plastics insulated conductor or at least one of the plastics insulated conductors travels towards the machine, there is applied to the outer surface of its plastics insulation a longitudinally continuous or discontinuous identification insignia of an ink which is of a colour readily distinguishable from that of the plastics insulation and which dries or is caused to dry before the insulated conductor is processed by said machine.
2. A method of manufacturing an electric cable comprising at least two plastics insulated conductors as claimed in Claim 1 wherein the insulated conductors are caused to travel side by side over at least one roller having a number of circumferentially extending grooves for accommodating the advancing insulated conductors, the longitudinally continuous or discontinuous identification insignia being applied by a transfer wheel which continuously or periodically bears against the outer surface of the plastics insulation of each advancing insulated conductor and which also bears against a roll of micro-cellular plastics material impregnated with a dry ink which, when the roll is heated to a predetermined temperature, is liquefied and released from the roll on to the transfer wheel from where it is transferred on to the insulated conductor, the ink drying rapidly as it comes into contact with the unheated insulated conductor.
3. A method of manufacturing an electric cable as claimed in any one of the preceding Claims, wherein the dry ink-impregnated roll is heated to a temperature of about 96"C.
4. A method of manufacturing an electric cable substantially as hereinbefore described with reference to the accompanying drawing.
5. An electric cable manufactured by the method claimed in any one of the preceding Claims.
6. Apparatus for applying a longitudinally continuous or discontinuous identification insignia of ink to the outer surface of the plastics insulation of an insulated conductor substantially as hereinbefore described with reference to and as shown in the accompanying drawing.
GB08515617A 1984-06-20 1985-06-20 Electric cable manufacture Expired GB2161116B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB848415736A GB8415736D0 (en) 1984-06-20 1984-06-20 Electric cable manufacture

Publications (3)

Publication Number Publication Date
GB8515617D0 GB8515617D0 (en) 1985-07-24
GB2161116A true GB2161116A (en) 1986-01-08
GB2161116B GB2161116B (en) 1988-11-02

Family

ID=10562713

Family Applications (2)

Application Number Title Priority Date Filing Date
GB848415736A Pending GB8415736D0 (en) 1984-06-20 1984-06-20 Electric cable manufacture
GB08515617A Expired GB2161116B (en) 1984-06-20 1985-06-20 Electric cable manufacture

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB848415736A Pending GB8415736D0 (en) 1984-06-20 1984-06-20 Electric cable manufacture

Country Status (1)

Country Link
GB (2) GB8415736D0 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB841404A (en) * 1957-02-20 1960-07-13 Gen Electric An apparatus for printing colour codes on lengths of wire
GB896973A (en) * 1959-07-23 1962-05-23 Milford Astor Ltd Improvements in cable and like marking machines
GB1150913A (en) * 1965-09-16 1969-05-07 Asea Ab Insulated Electrical Conductor For Equipment And A Programme-Controlled Machine For Preparing Such A Conductor
GB1275714A (en) * 1969-01-27 1972-05-24 Joseph Charles Gemelli Marking process and apparatus for elongated bodies
GB1536178A (en) * 1976-12-09 1978-12-20 Boeing Co Method and apparatus for printing indicia on a continuous elongate flexible three-dimensional member

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB841404A (en) * 1957-02-20 1960-07-13 Gen Electric An apparatus for printing colour codes on lengths of wire
GB896973A (en) * 1959-07-23 1962-05-23 Milford Astor Ltd Improvements in cable and like marking machines
GB1150913A (en) * 1965-09-16 1969-05-07 Asea Ab Insulated Electrical Conductor For Equipment And A Programme-Controlled Machine For Preparing Such A Conductor
GB1275714A (en) * 1969-01-27 1972-05-24 Joseph Charles Gemelli Marking process and apparatus for elongated bodies
GB1536178A (en) * 1976-12-09 1978-12-20 Boeing Co Method and apparatus for printing indicia on a continuous elongate flexible three-dimensional member

Also Published As

Publication number Publication date
GB8415736D0 (en) 1984-07-25
GB8515617D0 (en) 1985-07-24
GB2161116B (en) 1988-11-02

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee