FR343821A - Perfectionnements aux signaux de chemins de fer - Google Patents

Perfectionnements aux signaux de chemins de fer

Info

Publication number
FR343821A
FR343821A FR343821DA FR343821A FR 343821 A FR343821 A FR 343821A FR 343821D A FR343821D A FR 343821DA FR 343821 A FR343821 A FR 343821A
Authority
FR
France
Prior art keywords
railway signals
railway
signals
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
Albert Morrison Bullard
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 FR343821A publication Critical patent/FR343821A/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
    • B61L3/08—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 electrically
    • B61L3/10—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 electrically using current passing between devices along the route and devices on the vehicle or train

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR343821D 1904-06-09 1904-06-09 Perfectionnements aux signaux de chemins de fer Expired FR343821A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR343821T 1904-06-09

Publications (1)

Publication Number Publication Date
FR343821A true FR343821A (fr) 1904-10-15

Family

ID=1392735

Family Applications (1)

Application Number Title Priority Date Filing Date
FR343821D Expired FR343821A (fr) 1904-06-09 1904-06-09 Perfectionnements aux signaux de chemins de fer

Country Status (1)

Country Link
FR (1) FR343821A (fr)

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