FR526724A - Safety device for railways - Google Patents
Safety device for railwaysInfo
- Publication number
- FR526724A FR526724A FR526724A FR526724DA FR526724A FR 526724 A FR526724 A FR 526724A FR 526724 A FR526724 A FR 526724A FR 526724D A FR526724D A FR 526724DA FR 526724 A FR526724 A FR 526724A
- 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
- B61L3/08—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 |
|---|---|---|---|
| FR526724T | 1920-10-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR526724A true FR526724A (en) | 1921-10-13 |
Family
ID=8920936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR526724A Expired FR526724A (en) | 1920-10-28 | 1920-10-28 | Safety device for railways |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR526724A (en) |
-
1920
- 1920-10-28 FR FR526724A patent/FR526724A/en not_active Expired
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