BE607721Q - Articulated joint for retaining caps for mines. - Google Patents
Articulated joint for retaining caps for mines.Info
- Publication number
- BE607721Q BE607721Q BE607721A BE607721A BE607721Q BE 607721 Q BE607721 Q BE 607721Q BE 607721 A BE607721 A BE 607721A BE 607721 A BE607721 A BE 607721A BE 607721 Q BE607721 Q BE 607721Q
- Authority
- BE
- Belgium
- Prior art keywords
- mines
- articulated joint
- retaining caps
- caps
- retaining
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D17/00—Caps for supporting mine roofs
- E21D17/02—Cantilever extension or similar protecting devices
- E21D17/08—Cap joints for obtaining a coal-face free of pit-props
- E21D17/086—Cap joints for obtaining a coal-face free of pit-props or articulated type
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)
- Furnace Charging Or Discharging (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEG26259A DE1084670B (en) | 1959-01-28 | 1959-01-28 | Articulated connection of pit support caps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE607721Q true BE607721Q (en) | 1961-12-18 |
Family
ID=7122870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE607721A BE607721Q (en) | 1959-01-28 | 1961-08-31 | Articulated joint for retaining caps for mines. |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE607721Q (en) |
| DE (1) | DE1084670B (en) |
| FR (1) | FR1247061A (en) |
| GB (1) | GB911079A (en) |
-
1959
- 1959-01-28 DE DEG26259A patent/DE1084670B/en active Pending
-
1960
- 1960-01-27 FR FR816807A patent/FR1247061A/en not_active Expired
- 1960-01-28 GB GB315460A patent/GB911079A/en not_active Expired
-
1961
- 1961-08-31 BE BE607721A patent/BE607721Q/en active
Also Published As
| Publication number | Publication date |
|---|---|
| DE1084670B (en) | 1960-07-07 |
| GB911079A (en) | 1962-11-21 |
| FR1247061A (en) | 1960-11-25 |
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