GB8818636D0 - Track indicator apparatus - Google Patents

Track indicator apparatus

Info

Publication number
GB8818636D0
GB8818636D0 GB888818636A GB8818636A GB8818636D0 GB 8818636 D0 GB8818636 D0 GB 8818636D0 GB 888818636 A GB888818636 A GB 888818636A GB 8818636 A GB8818636 A GB 8818636A GB 8818636 D0 GB8818636 D0 GB 8818636D0
Authority
GB
United Kingdom
Prior art keywords
indicator apparatus
track indicator
track
indicator
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
GB888818636A
Other versions
GB2208449A (en
GB2208449B (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.)
ML Engineering Plymouth Ltd
Original Assignee
ML Engineering Plymouth 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 ML Engineering Plymouth Ltd filed Critical ML Engineering Plymouth Ltd
Publication of GB8818636D0 publication Critical patent/GB8818636D0/en
Publication of GB2208449A publication Critical patent/GB2208449A/en
Application granted granted Critical
Publication of GB2208449B publication Critical patent/GB2208449B/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B61L23/08—Control, warning or like safety means along the route or between vehicles or trains for controlling traffic in one direction only
    • B61L23/14—Control, warning or like safety means along the route or between vehicles or trains for controlling traffic in one direction only automatically operated
    • B61L23/16—Track circuits specially adapted for section blocking
    • B61L23/166—Track circuits specially adapted for section blocking using alternating current
    • 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
    • B61L1/18—Railway track circuits
    • B61L1/181—Details
    • B61L1/187—Use of alternating current

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
GB8818636A 1987-08-05 1988-08-05 Track indicator apparatus Expired - Lifetime GB2208449B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB878718519A GB8718519D0 (en) 1987-08-05 1987-08-05 Railway signalling apparatus

Publications (3)

Publication Number Publication Date
GB8818636D0 true GB8818636D0 (en) 1988-09-07
GB2208449A GB2208449A (en) 1989-03-30
GB2208449B GB2208449B (en) 1992-03-18

Family

ID=10621843

Family Applications (2)

Application Number Title Priority Date Filing Date
GB878718519A Pending GB8718519D0 (en) 1987-08-05 1987-08-05 Railway signalling apparatus
GB8818636A Expired - Lifetime GB2208449B (en) 1987-08-05 1988-08-05 Track indicator apparatus

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB878718519A Pending GB8718519D0 (en) 1987-08-05 1987-08-05 Railway signalling apparatus

Country Status (1)

Country Link
GB (2) GB8718519D0 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9122438D0 (en) * 1991-10-23 1991-12-04 Westinghouse Brake & Signal Railway track circuits
CA2099204C (en) * 1992-10-08 1997-01-07 James P. Brown Coded railway track circuit having reduced power standby mode capability
US7268565B2 (en) * 2005-12-08 2007-09-11 General Electric Company System and method for detecting rail break/vehicle
US9162691B2 (en) * 2012-04-27 2015-10-20 Transportation Technology Center, Inc. System and method for detecting broken rail and occupied track from a railway vehicle
CA3029165C (en) * 2016-06-24 2020-10-27 Siemens Industry, Inc. System and method for controlling signaling devices along railroad tracks in electrified territory
WO2020239264A1 (en) * 2019-05-29 2020-12-03 Sew-Eurodrive Gmbh & Co. Kg Rail system with a rail and mobile parts movable along the rail

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2896068A (en) * 1955-10-05 1959-07-21 Gen Railway Signal Co Electronic track circuit for railroads
US3683176A (en) * 1970-07-21 1972-08-08 George B Crofts Presence detector
GB1412243A (en) * 1971-07-21 1975-10-29 Moy Ltd Ernest F Track signalling apparatus
GB1344184A (en) * 1972-06-22 1974-01-16 British Railways Board Railway track circuits
GB1451431A (en) * 1972-10-18 1976-10-06 Geg General Signal Ltd Railway signalling apparatus and systems
CA1053791A (en) * 1975-08-21 1979-05-01 General Signal Corporation Vital relay operating circuit
US4570882A (en) * 1983-01-17 1986-02-18 General Signal Corporation Vital track circuit wheel detector
ATE47361T1 (en) * 1986-12-24 1989-11-15 Scheidt & Bachmann Gmbh DEVICE FOR MONITORING THE PRESENCE OF RAILWAY VEHICLES WITHIN SPECIFIC TRACK SECTIONS.

Also Published As

Publication number Publication date
GB8718519D0 (en) 1987-09-09
GB2208449A (en) 1989-03-30
GB2208449B (en) 1992-03-18

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20010805