DE104520C - - Google Patents
Info
- Publication number
- DE104520C DE104520C DENDAT104520D DE104520DA DE104520C DE 104520 C DE104520 C DE 104520C DE NDAT104520 D DENDAT104520 D DE NDAT104520D DE 104520D A DE104520D A DE 104520DA DE 104520 C DE104520 C DE 104520C
- Authority
- DE
- Germany
- Prior art keywords
- barriers
- pawl
- opening
- hook
- movement
- 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
- 230000000875 corresponding Effects 0.000 claims description 3
- 238000004804 winding Methods 0.000 description 3
- 230000000903 blocking Effects 0.000 description 2
- 230000036633 rest Effects 0.000 description 2
- 239000002965 rope Substances 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 1
- 241001459538 Ute Species 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001960 triggered 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
- B61L29/243—Transmission mechanism or acoustical signals for gates
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE104520C true DE104520C (ru) |
Family
ID=374891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT104520D Active DE104520C (ru) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE104520C (ru) |
-
0
- DE DENDAT104520D patent/DE104520C/de active Active
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