FR809000A - Installation of warning bells for railways - Google Patents
Installation of warning bells for railwaysInfo
- Publication number
- FR809000A FR809000A FR809000DA FR809000A FR 809000 A FR809000 A FR 809000A FR 809000D A FR809000D A FR 809000DA FR 809000 A FR809000 A FR 809000A
- Authority
- FR
- France
- Prior art keywords
- railways
- installation
- warning bells
- bells
- warning
- 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
- B61L29/00—Safety means for rail/road crossing traffic
- B61L29/24—Means for warning road traffic that a gate is closed or closing, or that rail traffic is approaching, e.g. for visible or audible warning
- B61L29/28—Means for warning road traffic that a gate is closed or closing, or that rail traffic is approaching, e.g. for visible or audible warning electrically operated
- B61L29/32—Timing, e.g. advance warning of approaching train
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE809000X | 1935-08-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR809000A true FR809000A (en) | 1937-02-19 |
Family
ID=1553226
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR809000D Expired FR809000A (en) | 1935-08-12 | 1936-08-04 | Installation of warning bells for railways |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR809000A (en) |
-
1936
- 1936-08-04 FR FR809000D patent/FR809000A/en not_active Expired
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