FR452114A - Electric indicator for railways - Google Patents
Electric indicator for railwaysInfo
- Publication number
- FR452114A FR452114A FR452114DA FR452114A FR 452114 A FR452114 A FR 452114A FR 452114D A FR452114D A FR 452114DA FR 452114 A FR452114 A FR 452114A
- Authority
- FR
- France
- Prior art keywords
- railways
- electric indicator
- indicator
- electric
- 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 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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR452114T | 1912-11-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR452114A true FR452114A (en) | 1913-05-08 |
Family
ID=1492371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR452114D Expired FR452114A (en) | 1912-11-28 | 1912-11-28 | Electric indicator for railways |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR452114A (en) |
-
1912
- 1912-11-28 FR FR452114D patent/FR452114A/en not_active Expired
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