FR451247A - Automatic barrier device for railway tracks - Google Patents

Automatic barrier device for railway tracks

Info

Publication number
FR451247A
FR451247A FR451247DA FR451247A FR 451247 A FR451247 A FR 451247A FR 451247D A FR451247D A FR 451247DA FR 451247 A FR451247 A FR 451247A
Authority
FR
France
Prior art keywords
barrier device
railway tracks
automatic barrier
automatic
railway
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
Bernhard Matthiae
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 FR451247A publication Critical patent/FR451247A/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
    • B61L1/20—Safety arrangements for preventing or indicating malfunction of the device, e.g. by leakage current, by lightning

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
FR451247D 1912-12-02 1912-12-02 Automatic barrier device for railway tracks Expired FR451247A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR451247T 1912-12-02

Publications (1)

Publication Number Publication Date
FR451247A true FR451247A (en) 1913-04-14

Family

ID=1491599

Family Applications (1)

Application Number Title Priority Date Filing Date
FR451247D Expired FR451247A (en) 1912-12-02 1912-12-02 Automatic barrier device for railway tracks

Country Status (1)

Country Link
FR (1) FR451247A (en)

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