GB920553A - - Google Patents
Info
- Publication number
- GB920553A GB920553A GB920553DA GB920553A GB 920553 A GB920553 A GB 920553A GB 920553D A GB920553D A GB 920553DA GB 920553 A GB920553 A GB 920553A
- Authority
- GB
- United Kingdom
- Prior art keywords
- train
- location
- tones
- signal
- central office
- 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.)
- Active
Links
- 239000003550 marker Substances 0.000 abstract 3
- 230000001939 inductive effect Effects 0.000 abstract 2
- 230000005540 biological transmission Effects 0.000 abstract 1
- 230000011664 signaling Effects 0.000 abstract 1
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
-
- 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
- B61L3/16—Continuous control along the route
- B61L3/22—Continuous control along the route using magnetic or electrostatic induction; using electromagnetic radiation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Selective Calling Equipment (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB920553A true GB920553A (enrdf_load_stackoverflow) |
Family
ID=1753566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB920553D Active GB920553A (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB920553A (enrdf_load_stackoverflow) |
-
0
- GB GB920553D patent/GB920553A/en active Active
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