FR417144A - Appareil optique et acoustique indiquant l'approche d'un signal d'arret - Google Patents

Appareil optique et acoustique indiquant l'approche d'un signal d'arret

Info

Publication number
FR417144A
FR417144A FR417144DA FR417144A FR 417144 A FR417144 A FR 417144A FR 417144D A FR417144D A FR 417144DA FR 417144 A FR417144 A FR 417144A
Authority
FR
France
Prior art keywords
approach
optical
stop signal
acoustic device
device indicating
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
English (en)
Inventor
Adalbert Thieme
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 FR417144A publication Critical patent/FR417144A/fr
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
    • B61L3/02—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control
    • B61L3/04—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling mechanically

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR417144D 1910-06-14 1910-06-14 Appareil optique et acoustique indiquant l'approche d'un signal d'arret Expired FR417144A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR417144T 1910-06-14

Publications (1)

Publication Number Publication Date
FR417144A true FR417144A (fr) 1910-11-07

Family

ID=1460579

Family Applications (1)

Application Number Title Priority Date Filing Date
FR417144D Expired FR417144A (fr) 1910-06-14 1910-06-14 Appareil optique et acoustique indiquant l'approche d'un signal d'arret

Country Status (1)

Country Link
FR (1) FR417144A (fr)

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