FR453987A - Alarm signal for railway tracks preventing the passage of a stop signal - Google Patents
Alarm signal for railway tracks preventing the passage of a stop signalInfo
- Publication number
- FR453987A FR453987A FR453987DA FR453987A FR 453987 A FR453987 A FR 453987A FR 453987D A FR453987D A FR 453987DA FR 453987 A FR453987 A FR 453987A
- Authority
- FR
- France
- Prior art keywords
- passage
- preventing
- signal
- railway tracks
- alarm signal
- 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
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
- B61L3/04—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 mechanically
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR453987T | 1913-02-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR453987A true FR453987A (en) | 1913-06-23 |
Family
ID=1494041
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR453987D Expired FR453987A (en) | 1913-02-05 | 1913-02-05 | Alarm signal for railway tracks preventing the passage of a stop signal |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR453987A (en) |
-
1913
- 1913-02-05 FR FR453987D patent/FR453987A/en not_active Expired
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