FR31025E - Perfectionnements apportés aux signaux lumineux visibles de jour - Google Patents
Perfectionnements apportés aux signaux lumineux visibles de jourInfo
- Publication number
- FR31025E FR31025E FR31025DA FR31025E FR 31025 E FR31025 E FR 31025E FR 31025D A FR31025D A FR 31025DA FR 31025 E FR31025 E FR 31025E
- Authority
- FR
- France
- Prior art keywords
- day
- visible light
- light signals
- improvements made
- signals during
- 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
- B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
- B61L5/12—Visible signals
- B61L5/18—Light signals; Mechanisms associated therewith, e.g. blinders
- B61L5/1809—Daylight signals
- B61L5/1836—Daylight signals using light sources of different colours and separate optical systems
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR31025T | 1925-05-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR31025E true FR31025E (fr) | 1926-11-20 |
Family
ID=8668878
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR31025D Expired FR31025E (fr) | 1925-05-26 | 1925-05-26 | Perfectionnements apportés aux signaux lumineux visibles de jour |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR31025E (fr) |
-
1925
- 1925-05-26 FR FR31025D patent/FR31025E/fr not_active Expired
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