FR994438A - Improvements to electrical signaling systems - Google Patents

Improvements to electrical signaling systems

Info

Publication number
FR994438A
FR994438A FR994438DA FR994438A FR 994438 A FR994438 A FR 994438A FR 994438D A FR994438D A FR 994438DA FR 994438 A FR994438 A FR 994438A
Authority
FR
France
Prior art keywords
signaling systems
electrical signaling
electrical
systems
signaling
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)
Inventor
Pierre Garcin
Andre Lefebvre
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 filed Critical
Application granted granted Critical
Publication of FR994438A publication Critical patent/FR994438A/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)
FR994438D 1949-07-01 1949-07-01 Improvements to electrical signaling systems Expired FR994438A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR994438T 1949-07-01

Publications (1)

Publication Number Publication Date
FR994438A true FR994438A (en) 1951-11-16

Family

ID=9556416

Family Applications (1)

Application Number Title Priority Date Filing Date
FR994438D Expired FR994438A (en) 1949-07-01 1949-07-01 Improvements to electrical signaling systems

Country Status (1)

Country Link
FR (1) FR994438A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1206008B (en) * 1956-02-01 1965-12-02 Compteurs Et Moteurs Aster Circuit arrangement for track circuits fed with alternating current for railway safety systems

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1206008B (en) * 1956-02-01 1965-12-02 Compteurs Et Moteurs Aster Circuit arrangement for track circuits fed with alternating current for railway safety systems

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