FR8420E - Sheltered electrical signals for railway - Google Patents

Sheltered electrical signals for railway

Info

Publication number
FR8420E
FR8420E FR8420DA FR8420E FR 8420 E FR8420 E FR 8420E FR 8420D A FR8420D A FR 8420DA FR 8420 E FR8420 E FR 8420E
Authority
FR
France
Prior art keywords
sheltered
railway
electrical signals
signals
electrical
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
Henri Dhers
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.)
HENRI DHERS
Original Assignee
HENRI DHERS
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 HENRI DHERS filed Critical HENRI DHERS
Application granted granted Critical
Publication of FR8420E publication Critical patent/FR8420E/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
    • B61L5/12—Visible signals
    • B61L5/14—Form signals, e.g. semaphore arms
    • B61L5/16—Local operating mechanisms for form signals
    • B61L5/165—Local operating mechanisms for form signals using electromagnetic driving means

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR8420D 1907-05-24 1907-11-06 Sheltered electrical signals for railway Expired FR8420E (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR378072T 1907-05-24
FR8420T 1907-11-06

Publications (1)

Publication Number Publication Date
FR8420E true FR8420E (en) 1908-04-03

Family

ID=1351104

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8420D Expired FR8420E (en) 1907-05-24 1907-11-06 Sheltered electrical signals for railway

Country Status (1)

Country Link
FR (1) FR8420E (en)

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