FR779124A - Device for detecting or revealing the approach of a vehicle on rails - Google Patents

Device for detecting or revealing the approach of a vehicle on rails

Info

Publication number
FR779124A
FR779124A FR779124DA FR779124A FR 779124 A FR779124 A FR 779124A FR 779124D A FR779124D A FR 779124DA FR 779124 A FR779124 A FR 779124A
Authority
FR
France
Prior art keywords
revealing
rails
approach
detecting
vehicle
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
Andre Pupier
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 FR779124A publication Critical patent/FR779124A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L29/00—Safety means for rail/road crossing traffic
    • B61L29/24—Means for warning road traffic that a gate is closed or closing, or that rail traffic is approaching, e.g. for visible or audible warning
    • B61L29/28—Means for warning road traffic that a gate is closed or closing, or that rail traffic is approaching, e.g. for visible or audible warning electrically operated
    • B61L29/284—Means for warning road traffic that a gate is closed or closing, or that rail traffic is approaching, e.g. for visible or audible warning electrically operated using rail-contacts, rail microphones, or the like, controlled by the vehicle

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR779124D 1934-09-29 1934-09-29 Device for detecting or revealing the approach of a vehicle on rails Expired FR779124A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR779124T 1934-09-29

Publications (1)

Publication Number Publication Date
FR779124A true FR779124A (en) 1935-03-29

Family

ID=9202572

Family Applications (1)

Application Number Title Priority Date Filing Date
FR779124D Expired FR779124A (en) 1934-09-29 1934-09-29 Device for detecting or revealing the approach of a vehicle on rails

Country Status (1)

Country Link
FR (1) FR779124A (en)

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