FR439455A - Protective device for railways - Google Patents
Protective device for railwaysInfo
- Publication number
- FR439455A FR439455A FR439455DA FR439455A FR 439455 A FR439455 A FR 439455A FR 439455D A FR439455D A FR 439455DA FR 439455 A FR439455 A FR 439455A
- Authority
- FR
- France
- Prior art keywords
- railways
- protective device
- protective
- 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
- 230000001681 protective effect Effects 0.000 title 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR439455T | 1911-04-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR439455A true FR439455A (en) | 1912-06-14 |
Family
ID=1480888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR439455D Expired FR439455A (en) | 1911-04-08 | 1911-04-08 | Protective device for railways |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR439455A (en) |
-
1911
- 1911-04-08 FR FR439455D patent/FR439455A/en not_active Expired
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