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FR785928A - Automatic safety device for level crossings - Google Patents

Automatic safety device for level crossings

Info

Publication number
FR785928A
FR785928A FR785928DA FR785928A FR 785928 A FR785928 A FR 785928A FR 785928D A FR785928D A FR 785928DA FR 785928 A FR785928 A FR 785928A
Authority
FR
France
Prior art keywords
safety device
automatic safety
level crossings
crossings
level
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
Josef Fryba
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 FR785928A publication Critical patent/FR785928A/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)
FR785928D 1933-11-17 1934-11-17 Automatic safety device for level crossings Expired FR785928A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS785928X 1933-11-17

Publications (1)

Publication Number Publication Date
FR785928A true FR785928A (en) 1935-08-22

Family

ID=5455517

Family Applications (1)

Application Number Title Priority Date Filing Date
FR785928D Expired FR785928A (en) 1933-11-17 1934-11-17 Automatic safety device for level crossings

Country Status (1)

Country Link
FR (1) FR785928A (en)

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