CA1043435A - Occupancy detecting a.c. track circuit apparatus - Google Patents

Occupancy detecting a.c. track circuit apparatus

Info

Publication number
CA1043435A
CA1043435A CA241,463A CA241463A CA1043435A CA 1043435 A CA1043435 A CA 1043435A CA 241463 A CA241463 A CA 241463A CA 1043435 A CA1043435 A CA 1043435A
Authority
CA
Canada
Prior art keywords
track
winding
alternating current
relay
series
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
CA241,463A
Other languages
English (en)
French (fr)
Inventor
Clinton S. Wilcox
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 Corp
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 CA1043435A publication Critical patent/CA1043435A/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)
CA241,463A 1975-01-13 1975-12-10 Occupancy detecting a.c. track circuit apparatus Expired CA1043435A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US540358A US3927851A (en) 1975-01-13 1975-01-13 Alternating current track circuit apparatus

Publications (1)

Publication Number Publication Date
CA1043435A true CA1043435A (en) 1978-11-28

Family

ID=24155108

Family Applications (1)

Application Number Title Priority Date Filing Date
CA241,463A Expired CA1043435A (en) 1975-01-13 1975-12-10 Occupancy detecting a.c. track circuit apparatus

Country Status (6)

Country Link
US (1) US3927851A (xx)
CA (1) CA1043435A (xx)
GB (1) GB1529623A (xx)
IT (1) IT1067244B (xx)
NL (1) NL161101C (xx)
ZA (1) ZA76143B (xx)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8402359D0 (en) * 1984-01-30 1984-02-29 Westinghouse Brake & Signal Track circuit
US4886226A (en) * 1988-06-23 1989-12-12 General Signal Corporation Broken rail and/or broken rail joint bar detection
IT1225716B (it) * 1988-10-26 1990-11-22 Esacontrol Spa Dispositivo per la protezione dei rele' di binario dai disturbi elettrici
US5181679A (en) * 1991-08-22 1993-01-26 General Railway Signal Corporation Railway train speed restriction apparatus
US5219426A (en) * 1992-02-25 1993-06-15 Union Switch & Signal Inc. Single-element coded alternating current railway track circuit having double-element, phase-selective capability
JP5005289B2 (ja) * 2006-08-10 2012-08-22 株式会社日立製作所 軌道回路
US8333350B2 (en) * 2008-12-26 2012-12-18 Mag-Con Engineering Double impedance bond
DE102011006552A1 (de) * 2011-03-31 2012-10-04 Siemens Aktiengesellschaft Vorrichtung zur Detektion des Belegt- oder Freizustandes eines Gleisabschnitts sowie Verfahren zum Betreiben einer solchen Vorrichtung
CN103158739B (zh) * 2013-03-18 2015-05-13 彭岚 一种动态处理铁路轨道分路不良的方法及装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2605390A (en) * 1948-10-13 1952-07-29 Gen Railway Signal Co Coded track circuit signaling systems
US2854567A (en) * 1954-04-23 1958-09-30 Westinghouse Air Brake Co Railway traffic controlling apparatus
US2986628A (en) * 1956-06-01 1961-05-30 Forges Ateliers Const Electr Track circuits

Also Published As

Publication number Publication date
IT1067244B (it) 1985-03-16
NL161101B (nl) 1979-08-15
ZA76143B (en) 1976-12-29
AU1022276A (en) 1977-07-21
GB1529623A (en) 1978-10-25
NL7600200A (nl) 1976-07-15
US3927851A (en) 1975-12-23
NL161101C (nl) 1980-01-15

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