FR726126A - Improvements in track circuit signaling systems for railways and the like - Google Patents

Improvements in track circuit signaling systems for railways and the like

Info

Publication number
FR726126A
FR726126A FR726126DA FR726126A FR 726126 A FR726126 A FR 726126A FR 726126D A FR726126D A FR 726126DA FR 726126 A FR726126 A FR 726126A
Authority
FR
France
Prior art keywords
railways
track circuit
signaling systems
circuit signaling
systems
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
Other languages
French (fr)
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.)
Compagnie Generale de Signalisation
Original Assignee
Compagnie Generale de Signalisation
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 Compagnie Generale de Signalisation filed Critical Compagnie Generale de Signalisation
Application granted granted Critical
Publication of FR726126A publication Critical patent/FR726126A/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)
FR726126D 1931-07-13 1931-11-10 Improvements in track circuit signaling systems for railways and the like Expired FR726126A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US550312A US1914958A (en) 1931-07-13 1931-07-13 Railway track circuit

Publications (1)

Publication Number Publication Date
FR726126A true FR726126A (en) 1932-05-23

Family

ID=24196635

Family Applications (1)

Application Number Title Priority Date Filing Date
FR726126D Expired FR726126A (en) 1931-07-13 1931-11-10 Improvements in track circuit signaling systems for railways and the like

Country Status (2)

Country Link
US (1) US1914958A (en)
FR (1) FR726126A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2418869A (en) * 1942-11-05 1947-04-15 Union Switch And Singal Compan Coded track circuit signalling system for railways and the like
US2880307A (en) * 1952-04-15 1959-03-31 Westinghouse Air Brake Co Alternating current track circuit with direct current track relay superimposed thereon
US3217158A (en) * 1961-11-29 1965-11-09 Westinghouse Air Brake Co Railway track circuit apparatus
US3246141A (en) * 1961-12-12 1966-04-12 Westinghouse Air Brake Co Coded track circuit apparatus
US4171788A (en) * 1978-05-08 1979-10-23 Westinghouse Air Brake Company Power transfer apparatus for railroad track circuits

Also Published As

Publication number Publication date
US1914958A (en) 1933-06-20

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