FR349429A - Automatic warning device for railways - Google Patents

Automatic warning device for railways

Info

Publication number
FR349429A
FR349429A FR349429DA FR349429A FR 349429 A FR349429 A FR 349429A FR 349429D A FR349429D A FR 349429DA FR 349429 A FR349429 A FR 349429A
Authority
FR
France
Prior art keywords
railways
warning device
automatic warning
automatic
warning
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
Georges Mambret
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR349429A publication Critical patent/FR349429A/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)
FR349429D 1904-12-22 1904-12-22 Automatic warning device for railways Expired FR349429A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR349429T 1904-12-22

Publications (1)

Publication Number Publication Date
FR349429A true FR349429A (en) 1905-05-29

Family

ID=1397936

Family Applications (1)

Application Number Title Priority Date Filing Date
FR349429D Expired FR349429A (en) 1904-12-22 1904-12-22 Automatic warning device for railways

Country Status (1)

Country Link
FR (1) FR349429A (en)

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