FR525571A - Device to prevent the overflow of semaphores when stopped - Google Patents
Device to prevent the overflow of semaphores when stoppedInfo
- Publication number
- FR525571A FR525571A FR525571A FR525571DA FR525571A FR 525571 A FR525571 A FR 525571A FR 525571 A FR525571 A FR 525571A FR 525571D A FR525571D A FR 525571DA FR 525571 A FR525571 A FR 525571A
- Authority
- FR
- France
- Prior art keywords
- semaphores
- overflow
- stopped
- prevent
- 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
- B61L15/00—Indicators provided on the vehicle or train for signalling purposes
- B61L15/0062—On-board target speed calculation or supervision
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L3/00—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal
- B61L3/02—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR525571T | 1920-10-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR525571A true FR525571A (en) | 1921-09-24 |
Family
ID=8920150
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR525571A Expired FR525571A (en) | 1920-10-04 | 1920-10-04 | Device to prevent the overflow of semaphores when stopped |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR525571A (en) |
-
1920
- 1920-10-04 FR FR525571A patent/FR525571A/en not_active Expired
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