CA933641A - Detection of end zones in alternating track circuits - Google Patents

Detection of end zones in alternating track circuits

Info

Publication number
CA933641A
CA933641A CA109376A CA109376A CA933641A CA 933641 A CA933641 A CA 933641A CA 109376 A CA109376 A CA 109376A CA 109376 A CA109376 A CA 109376A CA 933641 A CA933641 A CA 933641A
Authority
CA
Canada
Prior art keywords
detection
end zones
track circuits
alternating track
alternating
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
CA109376A
Other languages
English (en)
Inventor
C. Sibley Henry
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.)
SPX Technologies Inc
Original Assignee
General Signal Corp
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 General Signal Corp filed Critical General Signal Corp
Application granted granted Critical
Publication of CA933641A publication Critical patent/CA933641A/en
Expired legal-status Critical Current

Links

Classifications

    • 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)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
CA109376A 1970-05-04 1971-04-01 Detection of end zones in alternating track circuits Expired CA933641A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US3423770A 1970-05-04 1970-05-04

Publications (1)

Publication Number Publication Date
CA933641A true CA933641A (en) 1973-09-11

Family

ID=21875143

Family Applications (1)

Application Number Title Priority Date Filing Date
CA109376A Expired CA933641A (en) 1970-05-04 1971-04-01 Detection of end zones in alternating track circuits

Country Status (6)

Country Link
US (1) US3663809A (enExample)
CA (1) CA933641A (enExample)
DE (1) DE2121971A1 (enExample)
FR (1) FR2091201A5 (enExample)
GB (1) GB1341465A (enExample)
NL (1) NL7106098A (enExample)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3951364A (en) * 1975-01-09 1976-04-20 General Signal Corporation Track circuit
CS217737B1 (en) * 1980-04-04 1983-01-28 Oldrich Poupe Connection of the railway circuit with plural signalling sources
FR2486006A1 (fr) * 1980-07-07 1982-01-08 Jeumont Schneider Boucle induisant un courant dans les deux rails d'une voie ferree
FR2490569A1 (fr) * 1980-09-22 1982-03-26 Signaux Entr Electriques Circuit de voie de chemin de fer perfectionne
DE3534708A1 (de) * 1985-09-28 1987-04-02 Ivv Ingenieurgesellschaft Fuer Gleisstromkreis mit oder ohne isolierstoesse fuer eisenbahnanlagen
GB2418051A (en) * 2004-09-09 2006-03-15 Westinghouse Brake & Signal Backup system for detecting a vehicle which may not cause a track circuit to operate.
MX2022004535A (es) 2019-10-14 2022-09-19 Athena Industrial Tech Inc Detector de rieles rotos.
US12459551B2 (en) 2019-10-14 2025-11-04 Athena Industrial Technologies Inc. Broken rail detector

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1036142A (fr) * 1950-04-27 1953-09-03 Materiel Telephonique Circuit de voie pour système de sécurité de transport par rails

Also Published As

Publication number Publication date
GB1341465A (en) 1973-12-19
NL7106098A (enExample) 1971-11-08
DE2121971A1 (de) 1971-11-25
US3663809A (en) 1972-05-16
FR2091201A5 (enExample) 1972-01-14

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