FR582831A - Improvements to railway safety devices - Google Patents

Improvements to railway safety devices

Info

Publication number
FR582831A
FR582831A FR582831DA FR582831A FR 582831 A FR582831 A FR 582831A FR 582831D A FR582831D A FR 582831DA FR 582831 A FR582831 A FR 582831A
Authority
FR
France
Prior art keywords
safety devices
railway safety
railway
devices
safety
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)
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.)
OTIS AUTOMATIC TRAIN CONTROL
Original Assignee
OTIS AUTOMATIC TRAIN CONTROL
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 OTIS AUTOMATIC TRAIN CONTROL filed Critical OTIS AUTOMATIC TRAIN CONTROL
Application granted granted Critical
Publication of FR582831A publication Critical patent/FR582831A/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
    • B61L3/02—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)
FR582831D 1923-05-01 1924-04-30 Improvements to railway safety devices Expired FR582831A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US582831XA 1923-05-01 1923-05-01

Publications (1)

Publication Number Publication Date
FR582831A true FR582831A (en) 1924-12-29

Family

ID=22015837

Family Applications (1)

Application Number Title Priority Date Filing Date
FR582831D Expired FR582831A (en) 1923-05-01 1924-04-30 Improvements to railway safety devices

Country Status (1)

Country Link
FR (1) FR582831A (en)

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