DE187121C - - Google Patents
Info
- Publication number
- DE187121C DE187121C DENDAT187121D DE187121DA DE187121C DE 187121 C DE187121 C DE 187121C DE NDAT187121 D DENDAT187121 D DE NDAT187121D DE 187121D A DE187121D A DE 187121DA DE 187121 C DE187121 C DE 187121C
- Authority
- DE
- Germany
- Prior art keywords
- piles
- hanging
- rods
- support
- punches
- 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
- 235000000396 iron Nutrition 0.000 claims description 2
- 239000000725 suspension Substances 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 11
- 229910052742 iron Inorganic materials 0.000 description 6
- 239000003245 coal Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D17/00—Caps for supporting mine roofs
- E21D17/10—Details of mine caps for engaging the tops of pit-props, with or without retaining-plates; Retaining-plates
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)
- Bulkheads Adapted To Foundation Construction (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE187121C true DE187121C (enrdf_load_stackoverflow) |
Family
ID=450837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT187121D Active DE187121C (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE187121C (enrdf_load_stackoverflow) |
-
0
- DE DENDAT187121D patent/DE187121C/de active Active
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