FR728272A - Improvements in traffic lights - Google Patents

Improvements in traffic lights

Info

Publication number
FR728272A
FR728272A FR728272DA FR728272A FR 728272 A FR728272 A FR 728272A FR 728272D A FR728272D A FR 728272DA FR 728272 A FR728272 A FR 728272A
Authority
FR
France
Prior art keywords
traffic lights
lights
traffic
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 FR728272A publication Critical patent/FR728272A/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
    • B61L5/1818—Daylight signals using mobile coloured screen

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR728272D 1931-01-08 1931-12-15 Improvements in traffic lights Expired FR728272A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US728272XA 1931-01-08 1931-01-08

Publications (1)

Publication Number Publication Date
FR728272A true FR728272A (en) 1932-07-04

Family

ID=22109985

Family Applications (1)

Application Number Title Priority Date Filing Date
FR728272D Expired FR728272A (en) 1931-01-08 1931-12-15 Improvements in traffic lights

Country Status (1)

Country Link
FR (1) FR728272A (en)

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