FR501222A - Improvements to signals for railways and the like - Google Patents

Improvements to signals for railways and the like

Info

Publication number
FR501222A
FR501222A FR501222A FR501222DA FR501222A FR 501222 A FR501222 A FR 501222A FR 501222 A FR501222 A FR 501222A FR 501222D A FR501222D A FR 501222DA FR 501222 A FR501222 A FR 501222A
Authority
FR
France
Prior art keywords
railways
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
FR501222A
Other languages
French (fr)
Inventor
Walter Harrison Biddle
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 FR501222A publication Critical patent/FR501222A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L21/00—Station blocking between signal boxes in one yard
    • B61L21/06—Vehicle-on-line indication; Monitoring locking and release of the route
    • B61L21/065—Vehicle-on-line indication; Monitoring locking and release of the route for signals, including signals actuated by the vehicle

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR501222A 1918-05-30 1919-07-01 Improvements to signals for railways and the like Expired FR501222A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB501222X 1918-05-30

Publications (1)

Publication Number Publication Date
FR501222A true FR501222A (en) 1920-04-07

Family

ID=10301471

Family Applications (1)

Application Number Title Priority Date Filing Date
FR501222A Expired FR501222A (en) 1918-05-30 1919-07-01 Improvements to signals for railways and the like

Country Status (1)

Country Link
FR (1) FR501222A (en)

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