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US2939907A - Coaxial cable wound on a drum and process of winding - Google Patents

Coaxial cable wound on a drum and process of winding Download PDF

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Publication number
US2939907A
US2939907A US560651A US56065156A US2939907A US 2939907 A US2939907 A US 2939907A US 560651 A US560651 A US 560651A US 56065156 A US56065156 A US 56065156A US 2939907 A US2939907 A US 2939907A
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US
United States
Prior art keywords
drum
coaxial
conductor
tube
seam
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 - Lifetime
Application number
US560651A
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English (en)
Inventor
Hill William George
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of US2939907A publication Critical patent/US2939907A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
    • H01B13/225—Screening coaxial cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • H01B11/18—Coaxial cables; Analogous cables having more than one inner conductor within a common outer conductor
    • H01B11/20—Cables having a multiplicity of coaxial lines

Definitions

  • the tubular outer conductor of a coaxial cable is formed in such way that the abutting edges of the tubular outer conductor always lie on that diameter of the tubular conductor which is parallel to the axis of the take up drum so that the seam is in a neutral plane where neither compression nor tension is applied to the tube.
  • the seam remains in the same position relative to the axis about which the conductor pair is bent or flexed throughout all the processes up to the finished cable, which may contain several coaxial conductor pairs, wound on a drum ready for installation. Consequently throughout all these processes a coaxial conductor pair according to the invention retains the seam of the outer conductor in the neutral plane.
  • a process of manufacturing a coaxial conductor electric cable which comprises passing a conductor having spaced insulating members thereon and a metal tape into and through a die to fold the said tape longitudinally into .a tube fitting over said spacers with and taking up the coaxial conductors on a take-up drum rotating about an axis substantially perpendicular to the planein which the-tape passes into said die.
  • Fig. 1 is an elevation and Fig. 2 a plan of the relevant part of a machine for manufacturing a coaxial core;
  • Fig. 3 is a cross-section of the coaxial core on the line --a of Fig. 1;
  • Fig. 4 is a cross section of a cable comprising four coaxial cores.
  • a central conductor 1 having thereon spaced insulating discs 2 of polythene is traversed from right to left as seen in the drawings.
  • a metal tape 3 is drawn from a pad 4, over a guide roller 5 and passes through a tool 6 in which the edges of the tape are formed with corrugations in the manner described in British Patent No. 668,950, filed February 21, 1950, published July 16, 1952.
  • the tape 3 is then drawn over a guide roller 7 and turned so that its plane is rotated through into a plane parallel to the plane of the paper.
  • the conductor 1 with the discs 2 thereon and the tape 3 are then passed through a forming tool 8 which folds the tape 3 in known manner to form the outer conductor in the form of a tube 9 with the seam 10 formed by the abutting edges of the tape at the side of the core as seen in elevation in Fig. 1.
  • the tube 9 is then traversed past a wrapping head (not shown) by which helical magnetic screening tapes are applied thereto and is then wound on a take up drum 11 rotated about an axis 12 perpendicular to the plane of Fig. 1 by means not shown.
  • FIG 3 shows a cross section of the coaxial conductor pair consisting of the central conductor '1 and the outer tube 9 and it will be seen that the seam 10 lies along the neutral axis of the tube 9 with respect to any flexing as it is wound or unwound from the drum 11.
  • a process of winding'arr electric cable on. a. drum the cable comprising a plurality of coaxial conductors rigidly pnsitioned within a cable; jacket, and the-outer conductor of each coaxial conductor being in the form of a longitudinally" folded tape with edges abutting to form a seam, the process comprising positioning the coaxial conductors so that the seams thereof are oriented in' the same direction; andwinding the conductors on said. drum” so that" the seams of the respective conductors lie on the'neutral' axesthereofi References-Cited in the file of this patent UNITED STATES PATENTS 1,975,045 Kossowslrituut Sept. 25 1934 1 2.1215942. Barrett. June::28,l938? OIH-ER REFERENCES Iolinsons Materials oi Construction) Sthledition, re

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Communication Cables (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
US560651A 1950-02-21 1956-01-23 Coaxial cable wound on a drum and process of winding Expired - Lifetime US2939907A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB304154X 1950-02-21

Publications (1)

Publication Number Publication Date
US2939907A true US2939907A (en) 1960-06-07

Family

ID=10307334

Family Applications (1)

Application Number Title Priority Date Filing Date
US560651A Expired - Lifetime US2939907A (en) 1950-02-21 1956-01-23 Coaxial cable wound on a drum and process of winding

Country Status (7)

Country Link
US (1) US2939907A (de)
BE (1) BE501394A (de)
CH (1) CH304154A (de)
DE (1) DE895797C (de)
FR (1) FR1032918A (de)
GB (1) GB668950A (de)
NL (1) NL76178C (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2645017A (en) * 1949-02-21 1953-07-14 Laurence Bono Gun sight
US3890512A (en) * 1973-09-13 1975-06-17 Naigai Ind Inc Logic circuit equivalent to a relay contact circuit
USRE29917E (en) * 1973-09-13 1979-02-20 Naigai Industries, Inc. Logic circuit equivalent to a relay contact circuit
CN109411121A (zh) * 2018-09-21 2019-03-01 何银亚 一种高耐磨柔韧性强的电线结构

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1975045A (en) * 1931-08-10 1934-09-25 Kossowski Waclaw Method of making pipe bends
US2121942A (en) * 1932-06-23 1938-06-28 Western Electric Co Electric cable and method of manufacturing it

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1975045A (en) * 1931-08-10 1934-09-25 Kossowski Waclaw Method of making pipe bends
US2121942A (en) * 1932-06-23 1938-06-28 Western Electric Co Electric cable and method of manufacturing it

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2645017A (en) * 1949-02-21 1953-07-14 Laurence Bono Gun sight
US3890512A (en) * 1973-09-13 1975-06-17 Naigai Ind Inc Logic circuit equivalent to a relay contact circuit
USRE29917E (en) * 1973-09-13 1979-02-20 Naigai Industries, Inc. Logic circuit equivalent to a relay contact circuit
CN109411121A (zh) * 2018-09-21 2019-03-01 何银亚 一种高耐磨柔韧性强的电线结构

Also Published As

Publication number Publication date
DE895797C (de) 1953-11-05
GB668950A (en) 1952-03-26
CH304154A (fr) 1954-12-31
BE501394A (de)
FR1032918A (fr) 1953-07-07
NL76178C (de)

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