FR420388A - Automatic safety device for railway tracks - Google Patents

Automatic safety device for railway tracks

Info

Publication number
FR420388A
FR420388A FR420388DA FR420388A FR 420388 A FR420388 A FR 420388A FR 420388D A FR420388D A FR 420388DA FR 420388 A FR420388 A FR 420388A
Authority
FR
France
Prior art keywords
safety device
automatic safety
railway tracks
railway
tracks
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
William Filsell
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR420388A publication Critical patent/FR420388A/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 vehicle train, e.g. to release brake, to operate a warning signal
    • B61L3/02—Devices along the route for controlling devices on the vehicle or vehicle train, e.g. to release brake, to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control
    • B61L3/04—Devices along the route for controlling devices on the vehicle or vehicle train, e.g. to release brake, to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling mechanically
FR420388D 1910-09-14 1910-09-14 Automatic safety device for railway tracks Expired FR420388A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR420388T 1910-09-14

Publications (1)

Publication Number Publication Date
FR420388A true FR420388A (en) 1911-01-28

Family

ID=1463532

Family Applications (1)

Application Number Title Priority Date Filing Date
FR420388D Expired FR420388A (en) 1910-09-14 1910-09-14 Automatic safety device for railway tracks

Country Status (1)

Country Link
FR (1) FR420388A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6104634A (en) * 1997-06-04 2000-08-15 Sgs-Thomson Microelectronics S.A. Electrical programmable non-volatile memory integrated circuit with option configuration register

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6104634A (en) * 1997-06-04 2000-08-15 Sgs-Thomson Microelectronics S.A. Electrical programmable non-volatile memory integrated circuit with option configuration register

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