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 frictionInfo
- 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
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.
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)
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 |
-
1973
- 1973-06-25 FR FR7323045A patent/FR2234482A1/en active Granted
Non-Patent Citations (1)
Title |
---|
NEANT * |
Cited By (7)
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 |