FR549084A - Improvements to safety devices for railways - Google Patents
Improvements to safety devices for railwaysInfo
- Publication number
- FR549084A FR549084A FR549084DA FR549084A FR 549084 A FR549084 A FR 549084A FR 549084D A FR549084D A FR 549084DA FR 549084 A FR549084 A FR 549084A
- Authority
- FR
- France
- Prior art keywords
- railways
- safety devices
- safety
- devices
- 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 |
|---|---|---|---|
| FR549084T | 1922-03-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR549084A true FR549084A (en) | 1923-02-01 |
Family
ID=8935281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR549084D Expired FR549084A (en) | 1922-03-18 | 1922-03-18 | Improvements to safety devices for railways |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR549084A (en) |
-
1922
- 1922-03-18 FR FR549084D patent/FR549084A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FR549084A (en) | Improvements to safety devices for railways | |
| FR721772A (en) | Improvements to vehicle safety devices | |
| FR610070A (en) | Improvements to safety devices for railways, in particular signaling devices | |
| FR552944A (en) | Improvements to spring devices for cars | |
| FR593572A (en) | Improvements to aircraft safety devices | |
| FR634931A (en) | Improvements to shock absorbing devices for mechanically propelled vehicles | |
| FR557289A (en) | Safety device for running trains | |
| FR595196A (en) | Improvements to devices for lifting automobiles | |
| FR30182E (en) | Improvements to vehicle bumpers | |
| FR512478A (en) | Improvements to safety devices for railway points | |
| FR540320A (en) | Improvements to signaling devices for railways | |
| FR539121A (en) | Safety installation for railways | |
| FR531389A (en) | Safety device for trains | |
| FR530127A (en) | Improvements to release devices for mechanical cars | |
| FR507662A (en) | Safety device for railways | |
| FR544037A (en) | Improvements to vehicle security devices | |
| FR583188A (en) | Improvements to aircraft safety devices | |
| FR29992E (en) | Improvements to aircraft safety devices | |
| FR595472A (en) | Improvements to turning devices for vehicles traveling on railways | |
| FR557233A (en) | Safety mechanism for cars | |
| FR516644A (en) | Improvements to refloating devices | |
| FR557027A (en) | Safety devices for escalators | |
| FR557234A (en) | Safety devices for escalators | |
| FR570726A (en) | Improvements to devices for gauging or checking dimensions | |
| FR564394A (en) | Improvements to safety devices for steam generators |