FR769748A - Safety device for railways - Google Patents
Safety device for railwaysInfo
- Publication number
- FR769748A FR769748A FR769748DA FR769748A FR 769748 A FR769748 A FR 769748A FR 769748D A FR769748D A FR 769748DA FR 769748 A FR769748 A FR 769748A
- 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 |
|---|---|---|---|
| CH769748X | 1934-01-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR769748A true FR769748A (en) | 1934-08-31 |
Family
ID=4535301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR769748D Expired FR769748A (en) | 1934-01-24 | 1934-03-06 | Safety device for railways |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR769748A (en) |
-
1934
- 1934-03-06 FR FR769748D patent/FR769748A/en not_active Expired
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