DE265962C - - Google Patents
Info
- Publication number
- DE265962C DE265962C DENDAT265962D DE265962DA DE265962C DE 265962 C DE265962 C DE 265962C DE NDAT265962 D DENDAT265962 D DE NDAT265962D DE 265962D A DE265962D A DE 265962DA DE 265962 C DE265962 C DE 265962C
- Authority
- DE
- Germany
- Prior art keywords
- springs
- canvas
- attached
- column
- columns
- 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
- 230000000694 effects Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 3
- 230000001788 irregular Effects 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000010425 asbestos Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 210000002268 wool Anatomy 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)
- Lining And Supports For Tunnels (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE265962C true DE265962C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Family
ID=523145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT265962D Active DE265962C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE265962C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
-
0
- DE DENDAT265962D patent/DE265962C/de active Active
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