FR374298A - Automatic barrier for level crossings - Google Patents

Automatic barrier for level crossings

Info

Publication number
FR374298A
FR374298A FR374298DA FR374298A FR 374298 A FR374298 A FR 374298A FR 374298D A FR374298D A FR 374298DA FR 374298 A FR374298 A FR 374298A
Authority
FR
France
Prior art keywords
level crossings
automatic barrier
barrier
automatic
crossings
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
Heinrich Purnhagen
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.)
HEINRICH PURNHAGEN
Original Assignee
HEINRICH PURNHAGEN
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 HEINRICH PURNHAGEN filed Critical HEINRICH PURNHAGEN
Application granted granted Critical
Publication of FR374298A publication Critical patent/FR374298A/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
    • B61L29/243—Transmission mechanism or acoustical signals for gates

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR374298D 1907-02-05 1907-02-05 Automatic barrier for level crossings Expired FR374298A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR374298T 1907-02-05

Publications (1)

Publication Number Publication Date
FR374298A true FR374298A (en) 1907-06-08

Family

ID=1420955

Family Applications (1)

Application Number Title Priority Date Filing Date
FR374298D Expired FR374298A (en) 1907-02-05 1907-02-05 Automatic barrier for level crossings

Country Status (1)

Country Link
FR (1) FR374298A (en)

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