FR791681A - Signal lumineux, notamment applicable aux chemins de fer - Google Patents

Signal lumineux, notamment applicable aux chemins de fer

Info

Publication number
FR791681A
FR791681A FR791681DA FR791681A FR 791681 A FR791681 A FR 791681A FR 791681D A FR791681D A FR 791681DA FR 791681 A FR791681 A FR 791681A
Authority
FR
France
Prior art keywords
railways
light signal
particularly applicable
applicable
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
English (en)
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.)
Forges et Ateliers de Constructions Electriques de Jeumont SA
Original Assignee
Forges et Ateliers de Constructions Electriques de Jeumont SA
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 Forges et Ateliers de Constructions Electriques de Jeumont SA filed Critical Forges et Ateliers de Constructions Electriques de Jeumont SA
Application granted granted Critical
Publication of FR791681A publication Critical patent/FR791681A/fr
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61LGUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L5/00Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
    • B61L5/12Visible signals
    • B61L5/18Light signals; Mechanisms associated therewith, e.g. blinders
    • B61L5/1809Daylight signals
    • B61L5/1845Optical systems, lenses

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR791681D 1934-06-28 1935-06-24 Signal lumineux, notamment applicable aux chemins de fer Expired FR791681A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE791681X 1934-06-28

Publications (1)

Publication Number Publication Date
FR791681A true FR791681A (fr) 1935-12-14

Family

ID=1552740

Family Applications (1)

Application Number Title Priority Date Filing Date
FR791681D Expired FR791681A (fr) 1934-06-28 1935-06-24 Signal lumineux, notamment applicable aux chemins de fer

Country Status (1)

Country Link
FR (1) FR791681A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2908197A (en) * 1954-01-29 1959-10-13 Westinghouse Air Brake Co Wide angle lenses

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2908197A (en) * 1954-01-29 1959-10-13 Westinghouse Air Brake Co Wide angle lenses

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