FR1084254A - Procédé et dispositif d'avertissement sonore et leurs applications - Google Patents

Procédé et dispositif d'avertissement sonore et leurs applications

Info

Publication number
FR1084254A
FR1084254A FR1084254DA FR1084254A FR 1084254 A FR1084254 A FR 1084254A FR 1084254D A FR1084254D A FR 1084254DA FR 1084254 A FR1084254 A FR 1084254A
Authority
FR
France
Prior art keywords
applications
warning method
audible warning
audible
warning
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)
Inventor
Henri-Leon Gerard
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.)
SNCF Mobilites
Original Assignee
SNCF Mobilites
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 SNCF Mobilites filed Critical SNCF Mobilites
Application granted granted Critical
Publication of FR1084254A publication Critical patent/FR1084254A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B3/00—Audible signalling systems; Audible personal calling systems
    • G08B3/06—Audible signalling systems; Audible personal calling systems using hydraulic transmission; using pneumatic transmission
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
    • B61L23/06—Control, warning or like safety means along the route or between vehicles or trains for warning men working on the route

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR1084254D 1953-06-03 1953-06-03 Procédé et dispositif d'avertissement sonore et leurs applications Expired FR1084254A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1084254T 1953-06-03

Publications (1)

Publication Number Publication Date
FR1084254A true FR1084254A (fr) 1955-01-18

Family

ID=9611545

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1084254D Expired FR1084254A (fr) 1953-06-03 1953-06-03 Procédé et dispositif d'avertissement sonore et leurs applications

Country Status (1)

Country Link
FR (1) FR1084254A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5782198A (en) * 1996-07-16 1998-07-21 Sinclair, Ii; Paul Audible warning device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5782198A (en) * 1996-07-16 1998-07-21 Sinclair, Ii; Paul Audible warning device

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