FR617873A - Block system for railways - Google Patents
Block system for railwaysInfo
- Publication number
- FR617873A FR617873A FR617873DA FR617873A FR 617873 A FR617873 A FR 617873A FR 617873D A FR617873D A FR 617873DA FR 617873 A FR617873 A FR 617873A
- Authority
- FR
- France
- Prior art keywords
- railways
- block system
- block
- 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
- B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
- B61L23/08—Control, warning or like safety means along the route or between vehicles or trains for controlling traffic in one direction only
- B61L23/14—Control, warning or like safety means along the route or between vehicles or trains for controlling traffic in one direction only automatically operated
- B61L23/16—Track circuits specially adapted for section blocking
- B61L23/166—Track circuits specially adapted for section blocking using alternating current
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR617873T | 1925-11-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR617873A true FR617873A (en) | 1927-02-26 |
Family
ID=8982603
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR617873D Expired FR617873A (en) | 1925-11-07 | 1925-11-07 | Block system for railways |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR617873A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2584566A (en) * | 1947-02-20 | 1952-02-05 | Westinghouse Air Brake Co | Traffic protection apparatus |
US2631227A (en) * | 1946-05-21 | 1953-03-10 | Westinghouse Air Brake Co | Crossover protection apparatus |
-
1925
- 1925-11-07 FR FR617873D patent/FR617873A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2631227A (en) * | 1946-05-21 | 1953-03-10 | Westinghouse Air Brake Co | Crossover protection apparatus |
US2584566A (en) * | 1947-02-20 | 1952-02-05 | Westinghouse Air Brake Co | Traffic protection apparatus |
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