FR923994A - Block automatique à trois indications - Google Patents
Block automatique à trois indicationsInfo
- Publication number
- FR923994A FR923994A FR923994DA FR923994A FR 923994 A FR923994 A FR 923994A FR 923994D A FR923994D A FR 923994DA FR 923994 A FR923994 A FR 923994A
- Authority
- FR
- France
- Prior art keywords
- indications
- automatic block
- automatic
- 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
- B61L23/163—Track circuits specially adapted for section blocking using direct current
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR923994T | 1946-02-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR923994A true FR923994A (fr) | 1947-07-23 |
Family
ID=9439083
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR923994D Expired FR923994A (fr) | 1946-02-15 | 1946-02-15 | Block automatique à trois indications |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR923994A (fr) |
-
1946
- 1946-02-15 FR FR923994D patent/FR923994A/fr not_active Expired
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