FR574561A - Safety device for railways - Google Patents
Safety device for railwaysInfo
- Publication number
- FR574561A FR574561A FR574561DA FR574561A FR 574561 A FR574561 A FR 574561A FR 574561D A FR574561D A FR 574561DA FR 574561 A FR574561 A FR 574561A
- Authority
- FR
- France
- Prior art keywords
- railways
- safety device
- 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
- B61L3/04—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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR574561T | 1923-12-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR574561A true FR574561A (en) | 1924-07-16 |
Family
ID=8952770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR574561D Expired FR574561A (en) | 1923-12-03 | 1923-12-03 | Safety device for railways |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR574561A (en) |
-
1923
- 1923-12-03 FR FR574561D patent/FR574561A/en not_active Expired
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