FR993578A - Light signals for railways - Google Patents
Light signals for railwaysInfo
- Publication number
- FR993578A FR993578A FR993578DA FR993578A FR 993578 A FR993578 A FR 993578A FR 993578D A FR993578D A FR 993578DA FR 993578 A FR993578 A FR 993578A
- Authority
- FR
- France
- Prior art keywords
- railways
- light signals
- signals
- 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
- B61L9/00—Illumination specially adapted for points, form signals, or gates
- B61L9/04—Illumination specially adapted for points, form signals, or gates electric
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB993578X | 1948-08-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR993578A true FR993578A (en) | 1951-11-02 |
Family
ID=10867209
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR993578D Expired FR993578A (en) | 1948-08-13 | 1949-08-05 | Light signals for railways |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR993578A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0233852A1 (en) * | 1986-02-18 | 1987-08-26 | Railway Equipment Company | Extensible railroad grade crossing gate arm |
US10883705B2 (en) | 2017-01-13 | 2021-01-05 | Railway Equipment Company | Railroad crossing gate lamp system |
US12012137B2 (en) | 2019-09-24 | 2024-06-18 | Railway Equipment Company, Inc. | Railroad crossing gate light out detector apparatus and method |
-
1949
- 1949-08-05 FR FR993578D patent/FR993578A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0233852A1 (en) * | 1986-02-18 | 1987-08-26 | Railway Equipment Company | Extensible railroad grade crossing gate arm |
US4784356A (en) * | 1986-02-18 | 1988-11-15 | Railway Equipment Company | Variable placement interchangeable lamp system |
US10883705B2 (en) | 2017-01-13 | 2021-01-05 | Railway Equipment Company | Railroad crossing gate lamp system |
US12012137B2 (en) | 2019-09-24 | 2024-06-18 | Railway Equipment Company, Inc. | Railroad crossing gate light out detector apparatus and method |
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