GB2074768B - Track circuit - Google Patents

Track circuit

Info

Publication number
GB2074768B
GB2074768B GB8110960A GB8110960A GB2074768B GB 2074768 B GB2074768 B GB 2074768B GB 8110960 A GB8110960 A GB 8110960A GB 8110960 A GB8110960 A GB 8110960A GB 2074768 B GB2074768 B GB 2074768B
Authority
GB
United Kingdom
Prior art keywords
track circuit
track
circuit
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
GB8110960A
Other versions
GB2074768A (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.)
GEC General Signal Ltd
Original Assignee
GEC General Signal 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 GEC General Signal Ltd filed Critical GEC General Signal Ltd
Priority to GB8110960A priority Critical patent/GB2074768B/en
Publication of GB2074768A publication Critical patent/GB2074768A/en
Application granted granted Critical
Publication of GB2074768B publication Critical patent/GB2074768B/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
    • B61L23/04—Control, warning or like safety means along the route or between vehicles or trains for monitoring the mechanical state of the route
    • B61L23/042—Track changes detection
    • B61L23/044—Broken rails
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L1/00—Devices along the route controlled by interaction with the vehicle or train
    • B61L1/20—Safety arrangements for preventing or indicating malfunction of the device, e.g. by leakage current, by lightning

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
GB8110960A 1980-04-08 1981-04-08 Track circuit Expired GB2074768B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8110960A GB2074768B (en) 1980-04-08 1981-04-08 Track circuit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8011539 1980-04-08
GB8110960A GB2074768B (en) 1980-04-08 1981-04-08 Track circuit

Publications (2)

Publication Number Publication Date
GB2074768A GB2074768A (en) 1981-11-04
GB2074768B true GB2074768B (en) 1984-01-04

Family

ID=26275094

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8110960A Expired GB2074768B (en) 1980-04-08 1981-04-08 Track circuit

Country Status (1)

Country Link
GB (1) GB2074768B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3738696C2 (en) * 1987-11-14 1998-05-14 Sel Alcatel Ag Method and device for locating a broken rail
DE102006009962B3 (en) * 2005-12-23 2007-05-31 Areva Np Gmbh Method for monitoring rail track for breaking of rails, involves sampling of operating current flowing from rail vehicle to point of earthing and if difference of operating currents exceeds given threshold then one of the rails is closed
US7954770B2 (en) 2006-12-15 2011-06-07 General Electric Company Methods and system for jointless track circuits using passive signaling

Also Published As

Publication number Publication date
GB2074768A (en) 1981-11-04

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Effective date: 20010407