BE689892A - - Google Patents
Info
- Publication number
- BE689892A BE689892A BE689892DA BE689892A BE 689892 A BE689892 A BE 689892A BE 689892D A BE689892D A BE 689892DA BE 689892 A BE689892 A BE 689892A
- Authority
- BE
- Belgium
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
- E21D23/0409—Aligning or guiding means for the supports or for the constitutive parts of the supports
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Body Structure For Vehicles (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4941265A GB1122309A (en) | 1965-11-20 | 1965-11-20 | Improvements in advancing mine roof supports |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE689892A true BE689892A (xx) | 1967-05-02 |
Family
ID=10452257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE689892D BE689892A (xx) | 1965-11-20 | 1966-11-18 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE689892A (xx) |
| FR (1) | FR1505639A (xx) |
| GB (1) | GB1122309A (xx) |
| NL (1) | NL6616190A (xx) |
-
1965
- 1965-11-20 GB GB4941265A patent/GB1122309A/en not_active Expired
-
1966
- 1966-11-17 NL NL6616190A patent/NL6616190A/xx unknown
- 1966-11-18 BE BE689892D patent/BE689892A/xx unknown
- 1966-11-18 FR FR84202A patent/FR1505639A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1122309A (en) | 1968-08-07 |
| FR1505639A (fr) | 1967-12-15 |
| NL6616190A (xx) | 1967-05-22 |