FR772098A - Automatic safety device for railways - Google Patents
Automatic safety device for railwaysInfo
- Publication number
- FR772098A FR772098A FR772098DA FR772098A FR 772098 A FR772098 A FR 772098A FR 772098D A FR772098D A FR 772098DA FR 772098 A FR772098 A FR 772098A
- Authority
- FR
- France
- Prior art keywords
- railways
- safety device
- automatic safety
- automatic
- 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 |
|---|---|---|---|
| FR772098T | 1934-04-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR772098A true FR772098A (en) | 1934-10-23 |
Family
ID=9193104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR772098D Expired FR772098A (en) | 1934-04-20 | 1934-04-20 | Automatic safety device for railways |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR772098A (en) |
-
1934
- 1934-04-20 FR FR772098D patent/FR772098A/en not_active Expired
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