FR786214A - Improvements in safety devices for railway tracks - Google Patents
Improvements in safety devices for railway tracksInfo
- Publication number
- FR786214A FR786214A FR786214DA FR786214A FR 786214 A FR786214 A FR 786214A FR 786214D A FR786214D A FR 786214DA FR 786214 A FR786214 A FR 786214A
- Authority
- FR
- France
- Prior art keywords
- safety devices
- railway tracks
- railway
- tracks
- safety
- 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
- B61L3/08—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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR786214T | 1934-05-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR786214A true FR786214A (en) | 1935-08-29 |
Family
ID=9218237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR786214D Expired FR786214A (en) | 1934-05-04 | 1934-05-04 | Improvements in safety devices for railway tracks |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR786214A (en) |
-
1934
- 1934-05-04 FR FR786214D patent/FR786214A/en not_active Expired
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