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FR719534A - Improvements to signaling devices for railways - Google Patents

Improvements to signaling devices for railways

Info

Publication number
FR719534A
FR719534A FR719534DA FR719534A FR 719534 A FR719534 A FR 719534A FR 719534D A FR719534D A FR 719534DA FR 719534 A FR719534 A FR 719534A
Authority
FR
France
Prior art keywords
railways
signaling devices
signaling
devices
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
Alastair Campbell Stewart
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.)
STERNE AND Co Ltd L
Original Assignee
STERNE AND Co Ltd L
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 STERNE AND Co Ltd L filed Critical STERNE AND Co Ltd L
Application granted granted Critical
Publication of FR719534A publication Critical patent/FR719534A/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
    • B61L5/20—Audible signals, e.g. detonator audible signalling
    • B61L5/22—Devices for initiating the release of detonators in a certain position of a signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR719534D 1931-03-18 1931-06-17 Improvements to signaling devices for railways Expired FR719534A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB719534X 1931-03-18

Publications (1)

Publication Number Publication Date
FR719534A true FR719534A (en) 1932-02-06

Family

ID=10494863

Family Applications (1)

Application Number Title Priority Date Filing Date
FR719534D Expired FR719534A (en) 1931-03-18 1931-06-17 Improvements to signaling devices for railways

Country Status (1)

Country Link
FR (1) FR719534A (en)

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