FR724631A - Receiving device for light signals - Google Patents
Receiving device for light signalsInfo
- Publication number
- FR724631A FR724631A FR724631DA FR724631A FR 724631 A FR724631 A FR 724631A FR 724631D A FR724631D A FR 724631DA FR 724631 A FR724631 A FR 724631A
- Authority
- FR
- France
- Prior art keywords
- receiving device
- light signals
- signals
- light
- receiving
- 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
- B61L3/06—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 by electromagnetic or particle radiation, e.g. by light beam
- B61L3/065—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 by electromagnetic or particle radiation, e.g. by light beam controlling optically
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE724631X | 1930-10-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR724631A true FR724631A (en) | 1932-04-29 |
Family
ID=6634551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR724631D Expired FR724631A (en) | 1930-10-21 | 1931-10-16 | Receiving device for light signals |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR724631A (en) |
-
1931
- 1931-10-16 FR FR724631D patent/FR724631A/en not_active Expired
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