DE133734C - - Google Patents
Info
- Publication number
- DE133734C DE133734C DENDAT133734D DE133734DA DE133734C DE 133734 C DE133734 C DE 133734C DE NDAT133734 D DENDAT133734 D DE NDAT133734D DE 133734D A DE133734D A DE 133734DA DE 133734 C DE133734 C DE 133734C
- Authority
- DE
- Germany
- Prior art keywords
- door
- weather
- rope
- track section
- lever
- 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
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)
- Catching Or Destruction (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE133734C true DE133734C (https=) |
Family
ID=401912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT133734D Active DE133734C (https=) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE133734C (https=) |
-
0
- DE DENDAT133734D patent/DE133734C/de active Active
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