FR437915A - Automatic warning device for moving trains - Google Patents

Automatic warning device for moving trains

Info

Publication number
FR437915A
FR437915A FR437915DA FR437915A FR 437915 A FR437915 A FR 437915A FR 437915D A FR437915D A FR 437915DA FR 437915 A FR437915 A FR 437915A
Authority
FR
France
Prior art keywords
warning device
automatic warning
moving trains
trains
moving
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
Ugo Baldini
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.)
UGO BALDINI
Original Assignee
UGO BALDINI
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 UGO BALDINI filed Critical UGO BALDINI
Application granted granted Critical
Publication of FR437915A publication Critical patent/FR437915A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L3/00—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal
    • B61L3/16—Continuous control along the route
    • B61L3/22—Continuous control along the route using magnetic or electrostatic induction; using electromagnetic radiation
    • B61L3/221—Continuous control along the route using magnetic or electrostatic induction; using electromagnetic radiation using track circuits

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR437915D 1911-12-06 1911-12-20 Automatic warning device for moving trains Expired FR437915A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT437915X 1911-12-06

Publications (1)

Publication Number Publication Date
FR437915A true FR437915A (en) 1912-05-03

Family

ID=1479482

Family Applications (1)

Application Number Title Priority Date Filing Date
FR437915D Expired FR437915A (en) 1911-12-06 1911-12-20 Automatic warning device for moving trains

Country Status (1)

Country Link
FR (1) FR437915A (en)

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