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FR636895A - Improvements in light signals - Google Patents

Improvements in light signals

Info

Publication number
FR636895A
FR636895A FR636895DA FR636895A FR 636895 A FR636895 A FR 636895A FR 636895D A FR636895D A FR 636895DA FR 636895 A FR636895 A FR 636895A
Authority
FR
France
Prior art keywords
light signals
signals
light
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.)
Compagnie Generale de Signalisation
Original Assignee
Compagnie Generale de Signalisation
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 Compagnie Generale de Signalisation filed Critical Compagnie Generale de Signalisation
Application granted granted Critical
Publication of FR636895A publication Critical patent/FR636895A/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
    • B61L5/18—Light signals; Mechanisms associated therewith, e.g. blinders
    • B61L5/1809—Daylight signals
    • B61L5/1845—Optical systems, lenses

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR636895D 1926-08-13 1927-07-01 Improvements in light signals Expired FR636895A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US636895XA 1926-08-13 1926-08-13

Publications (1)

Publication Number Publication Date
FR636895A true FR636895A (en) 1928-04-18

Family

ID=22050838

Family Applications (1)

Application Number Title Priority Date Filing Date
FR636895D Expired FR636895A (en) 1926-08-13 1927-07-01 Improvements in light signals

Country Status (1)

Country Link
FR (1) FR636895A (en)

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