GB743848A - Apparatus for indicating and localising leaks in gas-pressure protected electric cables - Google Patents

Apparatus for indicating and localising leaks in gas-pressure protected electric cables

Info

Publication number
GB743848A
GB743848A GB30413/52A GB3041352A GB743848A GB 743848 A GB743848 A GB 743848A GB 30413/52 A GB30413/52 A GB 30413/52A GB 3041352 A GB3041352 A GB 3041352A GB 743848 A GB743848 A GB 743848A
Authority
GB
United Kingdom
Prior art keywords
spring
wheel
arm
pin
shaft
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
GB30413/52A
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of GB743848A publication Critical patent/GB743848A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/16—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
    • G01M3/18—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
    • G01M3/181—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for cables
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
    • G01M3/2838—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for cables

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)
GB30413/52A 1951-12-01 1952-12-01 Apparatus for indicating and localising leaks in gas-pressure protected electric cables Expired GB743848A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE743848X 1951-12-01

Publications (1)

Publication Number Publication Date
GB743848A true GB743848A (en) 1956-01-25

Family

ID=20323184

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30413/52A Expired GB743848A (en) 1951-12-01 1952-12-01 Apparatus for indicating and localising leaks in gas-pressure protected electric cables

Country Status (4)

Country Link
DE (1) DE1014621B (enrdf_load_stackoverflow)
FR (1) FR1070609A (enrdf_load_stackoverflow)
GB (1) GB743848A (enrdf_load_stackoverflow)
NL (1) NL88838C (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1176220B (de) * 1961-08-25 1964-08-20 Fernkabel Ges Mit Beschraenkte Anordnung zur Meldung und Ortsbestimmung der Lage undichter Stellen in gasdruck-ueberwachten Kabelanlagen
DE1226183B (de) * 1961-09-29 1966-10-06 Siemens Ag Einrichtung zur UEberwachung von druckgas-geschuetzten Fernmeldekabeln
DE1233450B (de) * 1962-10-11 1967-02-02 Siemens Ag Verfahren zur Bestimmung der Fehlergroesse und Schutzzeit von druckueberwachten Kabelanlagen

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT454187A (enrdf_load_stackoverflow) * 1948-05-31 1900-01-01

Also Published As

Publication number Publication date
NL88838C (enrdf_load_stackoverflow)
DE1014621B (de) 1957-08-29
FR1070609A (fr) 1954-08-03

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