BE368434A - - Google Patents
Info
- Publication number
- BE368434A BE368434A BE368434DA BE368434A BE 368434 A BE368434 A BE 368434A BE 368434D A BE368434D A BE 368434DA BE 368434 A BE368434 A BE 368434A
- Authority
- BE
- Belgium
- Prior art keywords
- rails
- microphone
- vibrations
- microphones
- train
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 3
- 230000003321 amplification Effects 0.000 claims 1
- 238000003199 nucleic acid amplification method Methods 0.000 claims 1
- 230000011664 signaling Effects 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 241001669679 Eleotris Species 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003014 reinforcing 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE368434A true BE368434A (enrdf_load_html_response) |
Family
ID=40256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE368434D BE368434A (enrdf_load_html_response) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE368434A (enrdf_load_html_response) |
-
0
- BE BE368434D patent/BE368434A/fr unknown
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| BE368434A (enrdf_load_html_response) | ||
| US1631368A (en) | Police signal system | |
| BE566238A (enrdf_load_html_response) | ||
| BE394724A (enrdf_load_html_response) | ||
| BE1018285A6 (fr) | Emetteur de "silence" et/ou de messages personnalises et/ou libres pour vehicule d'intervention d'urgence et passage a niveau. | |
| BE399269A (enrdf_load_html_response) | ||
| EP0161378A1 (fr) | Dispositif d'alarme et signalisation de tremblements de terre et de mouvements sismiques de tout genre | |
| BE366774A (enrdf_load_html_response) | ||
| EP1146771B1 (fr) | Téléphone mobile avec haut-parleur perfectionné | |
| BE355284A (enrdf_load_html_response) | ||
| US1130522A (en) | Party-line listening-in-detecting device. | |
| JP4102399B2 (ja) | 手旗信号による電話電磁制御装置 | |
| BE478383A (enrdf_load_html_response) | ||
| BE392795A (enrdf_load_html_response) | ||
| FR2620549A1 (fr) | Installation d'un systeme compact associant a tous dispositifs d'alarme un haut-parleur au moins, situe dans l'espace protege | |
| CH83619A (fr) | Installation de traction dans laquelle les freins à air comprimé des véhicules peuvent être actionnés automatiquement depuis la voie | |
| JP2005252419A (ja) | 道路利用者誘導システム | |
| US163549A (en) | Improvement in train-telegraphs | |
| BE539048A (enrdf_load_html_response) | ||
| KR980007820A (ko) | 음성합성 칩이 내장된 원격시동 경보기 | |
| BE552991A (enrdf_load_html_response) | ||
| CH610425A5 (en) | Electrically controlled attention getter, especially for a flat or office | |
| BE506291A (enrdf_load_html_response) | ||
| BE437555A (enrdf_load_html_response) | ||
| CH100592A (fr) | Installations avertisseuse automatique. |