FR2234482A1 - Device for pulling cables through pipes - magnets on cable and magnetic particles in pipe reduce friction - Google Patents

Device for pulling cables through pipes - magnets on cable and magnetic particles in pipe reduce friction

Info

Publication number
FR2234482A1
FR2234482A1 FR7323045A FR7323045A FR2234482A1 FR 2234482 A1 FR2234482 A1 FR 2234482A1 FR 7323045 A FR7323045 A FR 7323045A FR 7323045 A FR7323045 A FR 7323045A FR 2234482 A1 FR2234482 A1 FR 2234482A1
Authority
FR
France
Prior art keywords
cable
magnets
pipes
magnetic particles
reduce friction
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
FR7323045A
Other languages
French (fr)
Other versions
FR2234482B1 (en
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.)
FIELD AUTOMATION
Original Assignee
FIELD AUTOMATION
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 FIELD AUTOMATION filed Critical FIELD AUTOMATION
Priority to FR7323045A priority Critical patent/FR2234482A1/en
Publication of FR2234482A1 publication Critical patent/FR2234482A1/en
Application granted granted Critical
Publication of FR2234482B1 publication Critical patent/FR2234482B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
    • H02G1/08—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C39/00—Relieving load on bearings
    • F16C39/06—Relieving load on bearings using magnetic means
    • F16C39/063—Permanent magnets

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supports For Pipes And Cables (AREA)

Abstract

Frictional drag of cable on pipe wall, particularly on curves, is the limiting factor for trasversed distance when pulling cable through pipes. The tube is filled with a liquid having a suspension of ferromagnetic particles. Cylindrical magnets with an axial hole are spaced along the cable. The magnetic particles are attracted by the high magnetic field at the outer periphery of the magnets and provide separating forces between magnet and wall, and stop friction. To make the overall density of the cable similar to that of the fluid and avoid gravitational effects, floats are interspaced between magnets.
FR7323045A 1973-06-25 1973-06-25 Device for pulling cables through pipes - magnets on cable and magnetic particles in pipe reduce friction Granted FR2234482A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7323045A FR2234482A1 (en) 1973-06-25 1973-06-25 Device for pulling cables through pipes - magnets on cable and magnetic particles in pipe reduce friction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7323045A FR2234482A1 (en) 1973-06-25 1973-06-25 Device for pulling cables through pipes - magnets on cable and magnetic particles in pipe reduce friction

Publications (2)

Publication Number Publication Date
FR2234482A1 true FR2234482A1 (en) 1975-01-17
FR2234482B1 FR2234482B1 (en) 1977-02-18

Family

ID=9121480

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7323045A Granted FR2234482A1 (en) 1973-06-25 1973-06-25 Device for pulling cables through pipes - magnets on cable and magnetic particles in pipe reduce friction

Country Status (1)

Country Link
FR (1) FR2234482A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2513825A1 (en) * 1981-09-29 1983-04-01 Lignes Telegraph Telephon CABLE AND ITS INSTALLATION METHOD IN CONDUCT
US4468003A (en) * 1981-03-10 1984-08-28 Nonclerq Bernard Process for pulling cables into conduits
US5499797A (en) * 1993-04-10 1996-03-19 Sumitomo Electric Industries, Ltd. Method for inserting a communication wire through a pipeline by air flow
RU2572802C1 (en) * 2014-11-20 2016-01-20 Общество с ограниченной ответственностью "Инженерно-технический центр инновационных технологий" (ООО "Центр ИТ") Method of cable insertion in ferromagnetic pipe, and device for its implementation
CN112082039A (en) * 2020-08-26 2020-12-15 安徽乾方检测技术有限公司 Urban drainage pipeline detection device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4468003A (en) * 1981-03-10 1984-08-28 Nonclerq Bernard Process for pulling cables into conduits
FR2513825A1 (en) * 1981-09-29 1983-04-01 Lignes Telegraph Telephon CABLE AND ITS INSTALLATION METHOD IN CONDUCT
EP0076207A1 (en) * 1981-09-29 1983-04-06 Lignes Telegraphiques Et Telephoniques L.T.T. Optical fibre cable suitable for placing in a conduit
US5499797A (en) * 1993-04-10 1996-03-19 Sumitomo Electric Industries, Ltd. Method for inserting a communication wire through a pipeline by air flow
RU2572802C1 (en) * 2014-11-20 2016-01-20 Общество с ограниченной ответственностью "Инженерно-технический центр инновационных технологий" (ООО "Центр ИТ") Method of cable insertion in ferromagnetic pipe, and device for its implementation
CN112082039A (en) * 2020-08-26 2020-12-15 安徽乾方检测技术有限公司 Urban drainage pipeline detection device
CN112082039B (en) * 2020-08-26 2022-05-17 安徽乾方检测技术有限公司 Urban drainage pipeline detection device

Also Published As

Publication number Publication date
FR2234482B1 (en) 1977-02-18

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Legal Events

Date Code Title Description
GC Lien (pledge) constituted
ST Notification of lapse