US2677879A - Manufacture of coaxial conductor electric cables - Google Patents

Manufacture of coaxial conductor electric cables Download PDF

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Publication number
US2677879A
US2677879A US213933A US21393351A US2677879A US 2677879 A US2677879 A US 2677879A US 213933 A US213933 A US 213933A US 21393351 A US21393351 A US 21393351A US 2677879 A US2677879 A US 2677879A
Authority
US
United States
Prior art keywords
discs
disc
conductor
applicator
slots
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
US213933A
Other languages
English (en)
Inventor
Beveridge John Colquhoun
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 US2677879A publication Critical patent/US2677879A/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
    • H01B13/06—Insulating conductors or cables
    • H01B13/18—Applying discontinuous insulation, e.g. discs, beads
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
    • Y10T29/5176—Plural diverse manufacturing apparatus including means for metal shaping or assembling including machining means
    • Y10T29/5177—Plural diverse manufacturing apparatus including means for metal shaping or assembling including machining means and work-holder for assembly
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/5313—Means to assemble electrical device
    • Y10T29/532—Conductor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/5313—Means to assemble electrical device
    • Y10T29/53261—Means to align and advance work part

Definitions

  • Thi invention relates to machines for applying insulating discs to conductors and in particular to conductors intended to form the inner conductors of coaxial communication cables.
  • the discs are made of a relatively rigid ma terial', such as ebonite, slots having a width only slightly less than the diameter of the conductors are provided. at the time Of manufacture of the discs and it is desirable that successive discs should be applied to the conductor with the slots lying in different senses so as to avoid mechanical and electrical dissymmetry. In practice this means that at least two applicator wheels are required when slotted discs are used so that alternate discs can be applied from oppositesides.
  • the discs are made of a relatively resilient material such as for example, polythene
  • a simple radial out or slit can be used in placeof the slot of finite Width and can be opened up sufficiently to permit the conductor to be passed into the central aperture after which the slit closes up again and the disc firmly embraces the inner conductor.
  • the slits can be out just before they are applied so that no problem of orienting them arises as it does when slotted discs are-used.
  • the resilient" discs closeup after application it is not found necessary to arrange for the slits in alternate discs to lie in opposite senses.
  • the discs chine discs provided with central apertures, butnot with sllts are fed from a supply hopper down the discs are firmly held.
  • the cator wheel is provided with an axially project'- to the conductor from the outside of thefiange.
  • This arrangement enables the feed hopper for the discs to be arranged'at a convenient height manufacturing a coaxial conductor electric cableouter conductor supported on core having an disc shaped insulators centrally mounted in spaced relation on ing a wheelmountedwith its axis.
  • each slot being so shaped as to receive one discshaped insulator only, means for feeding centrally apertured insulating discs into successive slots at or near the lowest point of said wheel as it rotates, means for retaining the discs in the slots between the position at which they are fed intothe slotsand the position at which they are ap plied to the inner conductor, a knife in the path of the discs whilst they are being carried in said slots for slitting each disc from.
  • Figs. 1 and 2 are side and front elevations respectively of the machine.
  • Fig. 3 is an enlarged representation of part of the main applicator wheel shown in Fig. 2.
  • Fig. 4 is a section along the line IV-IV shown in Fig. 3.
  • Fig. 5 is a section along the line V-V shown in Fig. 3.
  • Fig. 6 is a section along the line VIVI shown in Fig. 3.
  • Fig. 7 shows five sections along lines lettered a, b, c, d, e in the upper part of Fig. 3.
  • Fig. 1 there is a supply hopper i which is kept supplied with discs 2 of insulating material, the discs being made with a central aperture of the correct size to fit on the inner conductor.
  • the discs are transferred from the hopper I to the pick-up trough 3 by means of a travelling belt conveyor 4 which is preferably operated intermittently so as to keep the discs agi tated.
  • a hub 5 mounted in the trough 3 carries four, identically shaped arms 6, 7, 8 and 9. The hub 5 with its arms is rotated and each of the arms is formed with a channel so that it picks up a number of the discs 2.
  • the arm 6 is shown when it has picked up four discs. In the position shown for arm 1 the end of the channel in the arm is directly above a slot in a fixed central boss H! which can best be seen in Fig. 2.
  • the applicator wheel I3 carries a flange [2 as shown in Fig. l.
  • the operation of the machine is primarily dependent on the functioning of this flange. The method of rotating the wheel is indicated and need not be more closely described.
  • the flange I2 is in fact built up of a number of sections 14 separated by slots l5, and these sections 14 together form the applicator ring.
  • Fig. 3 there is shown in enlarged form part of the applicator wheel with details of associated equipment.
  • Fig. 6 is a section through VI-VI shown in Fig.
  • Fig. 6 it will be seen that there is a groove H in the section [4 and this, which occurs in every section I4, is also shown in Fig. 1. Effectively thefiange or applicator ring 12 has a groove 11 on its outer surface all the way round. The purpose of the groove will become clear later.
  • Fig. 4 is a section through IV-IV shown in Fig. 3, and should be studied in conjunction. therewith and also with Fig. 1.
  • the discs 2 are seen approaching the lower end of the chute H while the section [4 is shown as cut by the section line the discs not being shown as cross hatched for clarity.
  • the section [4 is shown as cut by the section line the discs not being shown as cross hatched for clarity.
  • the slots 15 passes under the lower end of the chute H a disc falls in, the next disc in the chute being retained until another slot is in position.
  • the guide members [9 and 20 are mounted on the fixed part of the machine by means of supports 2
  • Fig. 5 is a section through V-V Shown in Fig. 3 and shows the knife [8 actually in the process of slitting a disc.
  • Part of the external arcuate guide member I9 is formed as ridge or key 22, best seen in Fig. 7 (a).
  • This key 22 holds the slit in the disc 2 slightly open and prevents the disc from rotating, and in conjunction with guides 19 and 20 holds the disc in position in its slots l5 until the time has come when it is to be applied to the inner conductor 23.
  • This ridge or key 22 is shown as a continuation of the knife l8.
  • the chute l I leading from the pick-up trough 3 to the rotating flange 12 on the applicator wheel l3 given two gentle bends in diiferent planes, one to enable it to pass from the pick-up trough past the upper portion of the applicator wheel flange and into position to deliver the discs to the inner surface of the lower portion of the flange, the other to enable it to pass from the hub of the rotating pick up arms without interfering with the arms.
  • These bends are such however, that the discs are able to fall under gravity down the chute and into the slots between the axially projecting portions of the applicator wheel and the chute is in fact substantially vertical.
  • an annular and rotatably driven applicator for sequentially moving each disc from the point of feed upwardly and onto said moving conductor at a circumferential speed equal to the linear speed of the conductor, said applicator comprising a rotatably mounted and driven member provided with a plurality of laterally extending block-like elements disposed in circumferential configuration at spaced intervals to define a plurality of slots, equally spaced circumferentially, for the reception of a disc when in registry with said feed means, each said block-like element being centrally provided in the outermost wall thereof with a longitudinally extending slot, said slot being positioned in circumferential registry, guide means disposed between said feed point and the point of interception of said conductor for retention of each disc in its slot, means for feeding said discs to the inside of said block-like elements and into said slots, means adjacent said feed point and disposed in the path
  • Apparatus for the sequential application of annular discs to a conductor comprising in combination, a rotatably mounted annular applicator peripherally provided with a laterally extending slotted flange, the slots providing a passageway through the flange, means for sequentially feeding a disc to the inside of the flange into each slot thereof, guide means for retainin the discs so each disc along the outermost radius as positioned by the applicator, annularly disposed spreader said conductor.
  • slotted flange comprises a plurality of arcuate block-like elements disposed in equally spaced annular configuration to define equally spaced disc receiving slots therebetween, said block-like elements each being provided in the moving cable being tangentially directed into said block channels and centrally of each annular disc to permit, upon termination of said spreader means, snug fit application of each successive disc to said conductor.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Removal Of Insulation Or Armoring From Wires Or Cables (AREA)
  • Manufacturing Of Electric Cables (AREA)
US213933A 1950-03-10 1951-03-05 Manufacture of coaxial conductor electric cables Expired - Lifetime US2677879A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB292918X 1950-03-10

Publications (1)

Publication Number Publication Date
US2677879A true US2677879A (en) 1954-05-11

Family

ID=10289214

Family Applications (1)

Application Number Title Priority Date Filing Date
US213933A Expired - Lifetime US2677879A (en) 1950-03-10 1951-03-05 Manufacture of coaxial conductor electric cables

Country Status (7)

Country Link
US (1) US2677879A (xx)
BE (1) BE501749A (xx)
CH (1) CH292918A (xx)
DE (1) DE885573C (xx)
FR (1) FR1045641A (xx)
GB (1) GB695018A (xx)
NL (1) NL75892C (xx)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3789480A (en) * 1971-11-29 1974-02-05 Northern Electric Co Method of and apparatus for applying insulating discs to conductors

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1028186B (de) * 1955-04-18 1958-04-17 Siemens Ag Verfahren zur Herstellung von aufsteckbaren Distanzscheiben, vorzugsweise fuer koaxiale Leitungen
US6564416B1 (en) 2000-05-22 2003-05-20 Gillette Canada Company Toothbrush

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US482542A (en) * 1892-09-13 butler
US915542A (en) * 1908-06-02 1909-03-16 Hugo C Biertuempfel Conveyer.
US1627601A (en) * 1922-08-18 1927-05-10 Crown Cork And Seal Company Of Apparatus for compacting granular material
US2075050A (en) * 1934-01-04 1937-03-30 Packard Motor Car Co Article handling mechanism
US2333940A (en) * 1941-07-10 1943-11-09 Nat Lock Washer Co Assembly machine
US2355832A (en) * 1943-06-15 1944-08-15 Western Electric Co Assembling apparatus
US2404782A (en) * 1944-11-30 1946-07-30 Western Electric Co Assembling apparatus
US2426623A (en) * 1945-08-06 1947-09-02 Western Electric Co Apparatus for assembling articles
GB631914A (en) * 1947-08-29 1949-11-11 Standard Telephones Cables Ltd Improvements in the manufacture of concentric conductor electric cables
US2579468A (en) * 1946-10-10 1951-12-25 Western Electric Co Apparatus for making coaxial cable units

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US482542A (en) * 1892-09-13 butler
US915542A (en) * 1908-06-02 1909-03-16 Hugo C Biertuempfel Conveyer.
US1627601A (en) * 1922-08-18 1927-05-10 Crown Cork And Seal Company Of Apparatus for compacting granular material
US2075050A (en) * 1934-01-04 1937-03-30 Packard Motor Car Co Article handling mechanism
US2333940A (en) * 1941-07-10 1943-11-09 Nat Lock Washer Co Assembly machine
US2355832A (en) * 1943-06-15 1944-08-15 Western Electric Co Assembling apparatus
US2404782A (en) * 1944-11-30 1946-07-30 Western Electric Co Assembling apparatus
US2426623A (en) * 1945-08-06 1947-09-02 Western Electric Co Apparatus for assembling articles
US2579468A (en) * 1946-10-10 1951-12-25 Western Electric Co Apparatus for making coaxial cable units
GB631914A (en) * 1947-08-29 1949-11-11 Standard Telephones Cables Ltd Improvements in the manufacture of concentric conductor electric cables

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3789480A (en) * 1971-11-29 1974-02-05 Northern Electric Co Method of and apparatus for applying insulating discs to conductors

Also Published As

Publication number Publication date
BE501749A (xx)
GB695018A (en) 1953-08-05
NL75892C (xx)
CH292918A (fr) 1953-08-31
FR1045641A (fr) 1953-11-30
DE885573C (de) 1953-08-06

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