FR791681A - Signal lumineux, notamment applicable aux chemins de fer - Google Patents
Signal lumineux, notamment applicable aux chemins de ferInfo
- Publication number
- FR791681A FR791681A FR791681DA FR791681A FR 791681 A FR791681 A FR 791681A FR 791681D A FR791681D A FR 791681DA FR 791681 A FR791681 A FR 791681A
- Authority
- FR
- France
- Prior art keywords
- railways
- light signal
- particularly applicable
- applicable
- light
- 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
- B61L5/1845—Optical systems, lenses
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE791681X | 1934-06-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR791681A true FR791681A (fr) | 1935-12-14 |
Family
ID=1552740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR791681D Expired FR791681A (fr) | 1934-06-28 | 1935-06-24 | Signal lumineux, notamment applicable aux chemins de fer |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR791681A (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2908197A (en) * | 1954-01-29 | 1959-10-13 | Westinghouse Air Brake Co | Wide angle lenses |
-
1935
- 1935-06-24 FR FR791681D patent/FR791681A/fr not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2908197A (en) * | 1954-01-29 | 1959-10-13 | Westinghouse Air Brake Co | Wide angle lenses |
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