GB1382845A - Monitoring apparatus - Google Patents

Monitoring apparatus

Info

Publication number
GB1382845A
GB1382845A GB2079472A GB2079472A GB1382845A GB 1382845 A GB1382845 A GB 1382845A GB 2079472 A GB2079472 A GB 2079472A GB 2079472 A GB2079472 A GB 2079472A GB 1382845 A GB1382845 A GB 1382845A
Authority
GB
United Kingdom
Prior art keywords
conduit
curvature
axis
vertical
carries
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
Application number
GB2079472A
Other languages
English (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.)
John Laing and Son Ltd
Original Assignee
John Laing and Son Ltd
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 John Laing and Son Ltd filed Critical John Laing and Son Ltd
Priority to GB2079472A priority Critical patent/GB1382845A/en
Priority to US354070A priority patent/US3886665A/en
Priority to JP48049591A priority patent/JPS4949658A/ja
Priority to FR7316216A priority patent/FR2183284B1/fr
Priority to DE2322474A priority patent/DE2322474A1/de
Publication of GB1382845A publication Critical patent/GB1382845A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/28—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring contours or curvatures
    • G01B7/281—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring contours or curvatures for measuring contour or curvature along an axis, e.g. axial curvature of a pipeline or along a series of feeder rollers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
GB2079472A 1972-05-04 1972-05-04 Monitoring apparatus Expired GB1382845A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB2079472A GB1382845A (en) 1972-05-04 1972-05-04 Monitoring apparatus
US354070A US3886665A (en) 1972-05-04 1973-04-24 Monitoring apparatus
JP48049591A JPS4949658A (https=) 1972-05-04 1973-05-01
FR7316216A FR2183284B1 (https=) 1972-05-04 1973-05-04
DE2322474A DE2322474A1 (de) 1972-05-04 1973-05-04 Ueberwachungsvorrichtung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2079472A GB1382845A (en) 1972-05-04 1972-05-04 Monitoring apparatus

Publications (1)

Publication Number Publication Date
GB1382845A true GB1382845A (en) 1975-02-05

Family

ID=10151780

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2079472A Expired GB1382845A (en) 1972-05-04 1972-05-04 Monitoring apparatus

Country Status (5)

Country Link
US (1) US3886665A (https=)
JP (1) JPS4949658A (https=)
DE (1) DE2322474A1 (https=)
FR (1) FR2183284B1 (https=)
GB (1) GB1382845A (https=)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4021925A (en) * 1974-06-20 1977-05-10 Loftus William F Apparatus for and process of determining the internal diameter of pipelines
US4780962A (en) * 1983-12-05 1988-11-01 T. D. Williamson, Inc. Pipeline bend verification pig
CA1245851A (en) * 1984-10-17 1988-12-06 Ronald M.K. Mckechnie Shaft guide alignment measurement
US4628613A (en) * 1986-01-13 1986-12-16 Electronic Diggins Systems, Inc. Bend detector for a pipeline pig
DE3722254A1 (de) * 1987-07-06 1989-01-19 Schwenk Oskar Gmbh & Co Kg Zentrier- und ausrichteinrichtung fuer bohrungsmessgeraete
US5205048A (en) * 1991-11-20 1993-04-27 Tdw Delaware, Inc. Pipeline bend detector pig
GB0120076D0 (en) * 2001-08-17 2001-10-10 Schlumberger Holdings Measurement of curvature of a subsurface borehole, and use of such measurement in directional drilling
US6833706B2 (en) * 2002-04-01 2004-12-21 Schlumberger Technology Corporation Hole displacement measuring system and method using a magnetic field
US12607441B2 (en) * 2023-10-27 2026-04-21 Stewart Tubular Products Llc 3D printed drift device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1417703A (en) * 1921-12-21 1922-05-30 Waffenschmidt Walter Device for indicating curves
US2834113A (en) * 1956-06-28 1958-05-13 Gulf Research Development Co Pipeline surveying
US3496644A (en) * 1967-10-05 1970-02-24 Don L Short Internal measuring device to determine pipe curvature
US3500549A (en) * 1968-09-23 1970-03-17 Cornell Howland Hayes & Merryf Method and apparatus for determining stresses and deformations
US3789511A (en) * 1972-02-04 1974-02-05 Columbia Gas Syst Service Corp Apparatus for sensing a curvature in a conduit
US3780442A (en) * 1972-04-21 1973-12-25 Western Electric Co Methods and compound gauge devices for measuring the axial curvature of a tube

Also Published As

Publication number Publication date
FR2183284B1 (https=) 1978-10-20
DE2322474A1 (de) 1973-11-15
FR2183284A1 (https=) 1973-12-14
US3886665A (en) 1975-06-03
JPS4949658A (https=) 1974-05-14

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee