FR441043A - Train protection system, combined with ordinary optical signals and determining the operation of an acoustic signal - Google Patents

Train protection system, combined with ordinary optical signals and determining the operation of an acoustic signal

Info

Publication number
FR441043A
FR441043A FR441043DA FR441043A FR 441043 A FR441043 A FR 441043A FR 441043D A FR441043D A FR 441043DA FR 441043 A FR441043 A FR 441043A
Authority
FR
France
Prior art keywords
determining
combined
optical signals
acoustic signal
protection system
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
Francois-Firmin Goumy Pere
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.)
FIRMIN RENE GOUMY FILS
FRANCOIS FIRMIN GOUMY PERE
Original Assignee
FIRMIN RENE GOUMY FILS
FRANCOIS FIRMIN GOUMY PERE
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 FIRMIN RENE GOUMY FILS, FRANCOIS FIRMIN GOUMY PERE filed Critical FIRMIN RENE GOUMY FILS
Application granted granted Critical
Publication of FR441043A publication Critical patent/FR441043A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L3/00—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal
    • B61L3/02—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control
    • B61L3/08—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically
    • B61L3/10—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically using current passing between devices along the route and devices on the vehicle or train
    • B61L3/103—Details of current transmitting conductors or contact brushes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR441043D 1912-03-06 1912-03-06 Train protection system, combined with ordinary optical signals and determining the operation of an acoustic signal Expired FR441043A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR441043T 1912-03-06

Publications (1)

Publication Number Publication Date
FR441043A true FR441043A (en) 1912-07-27

Family

ID=1482340

Family Applications (1)

Application Number Title Priority Date Filing Date
FR441043D Expired FR441043A (en) 1912-03-06 1912-03-06 Train protection system, combined with ordinary optical signals and determining the operation of an acoustic signal

Country Status (1)

Country Link
FR (1) FR441043A (en)

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