DE144801C - - Google Patents
Info
- Publication number
- DE144801C DE144801C DENDAT144801D DE144801DA DE144801C DE 144801 C DE144801 C DE 144801C DE NDAT144801 D DENDAT144801 D DE NDAT144801D DE 144801D A DE144801D A DE 144801DA DE 144801 C DE144801 C DE 144801C
- Authority
- DE
- Germany
- Prior art keywords
- barrier
- clockwork
- pawl
- forced
- lifted
- 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.)
- Active
Links
- 230000004888 barrier function Effects 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
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
- B61L29/30—Supervision, e.g. monitoring arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
- Lock And Its Accessories (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE144801C true DE144801C (enExample) |
Family
ID=412189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT144801D Active DE144801C (enExample) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE144801C (enExample) |
-
0
- DE DENDAT144801D patent/DE144801C/de active Active
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