FR28478E - Relais électro-pneumatique polarisé - Google Patents
Relais électro-pneumatique polariséInfo
- Publication number
- FR28478E FR28478E FR28478DA FR28478E FR 28478 E FR28478 E FR 28478E FR 28478D A FR28478D A FR 28478DA FR 28478 E FR28478 E FR 28478E
- Authority
- FR
- France
- Prior art keywords
- pneumatic relay
- polarized electro
- polarized
- electro
- pneumatic
- 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
- B61L3/103—Details of current transmitting conductors or contact brushes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR28478T | 1923-12-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR28478E true FR28478E (fr) | 1925-02-27 |
Family
ID=8666650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR28478D Expired FR28478E (fr) | 1923-12-07 | 1923-12-07 | Relais électro-pneumatique polarisé |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR28478E (fr) |
-
1923
- 1923-12-07 FR FR28478D patent/FR28478E/fr not_active Expired
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