FR426846A - Electric alarm for railways - Google Patents
Electric alarm for railwaysInfo
- Publication number
- FR426846A FR426846A FR426846DA FR426846A FR 426846 A FR426846 A FR 426846A FR 426846D A FR426846D A FR 426846DA FR 426846 A FR426846 A FR 426846A
- Authority
- FR
- France
- Prior art keywords
- railways
- electric alarm
- alarm
- 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 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR426846T | 1911-03-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR426846A true FR426846A (en) | 1911-07-19 |
Family
ID=1469381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR426846D Expired FR426846A (en) | 1911-03-04 | 1911-03-04 | Electric alarm for railways |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR426846A (en) |
-
1911
- 1911-03-04 FR FR426846D patent/FR426846A/en not_active Expired
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