DE241089C - - Google Patents
Info
- Publication number
- DE241089C DE241089C DENDAT241089D DE241089DA DE241089C DE 241089 C DE241089 C DE 241089C DE NDAT241089 D DENDAT241089 D DE NDAT241089D DE 241089D A DE241089D A DE 241089DA DE 241089 C DE241089 C DE 241089C
- Authority
- DE
- Germany
- Prior art keywords
- door
- auxiliary rail
- closed
- lever
- rail
- 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
- 230000000630 rising effect Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/10—Air doors
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Power-Operated Mechanisms For Wings (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE241089C true DE241089C (enrdf_load_stackoverflow) |
Family
ID=500406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT241089D Active DE241089C (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE241089C (enrdf_load_stackoverflow) |
-
0
- DE DENDAT241089D patent/DE241089C/de active Active
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