BE676776A - - Google Patents
Info
- Publication number
- BE676776A BE676776A BE676776DA BE676776A BE 676776 A BE676776 A BE 676776A BE 676776D A BE676776D A BE 676776DA BE 676776 A BE676776 A BE 676776A
- 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
-
- 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
- E21D23/006—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices
- E21D23/0069—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices without essential advancing shifting devices
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)
- Architecture (AREA)
- Structural Engineering (AREA)
- Earth Drilling (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEG0042902 | 1965-02-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE676776A true BE676776A (https=) | 1966-08-22 |
Family
ID=7127044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE676776D BE676776A (https=) | 1965-02-22 | 1966-02-21 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3415065A (https=) |
| BE (1) | BE676776A (https=) |
| FR (1) | FR1467502A (https=) |
| GB (1) | GB1132252A (https=) |
| NL (1) | NL6602192A (https=) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1156037B (de) * | 1961-03-24 | 1963-10-24 | Gewerk Eisenhuette Westfalia | Selbsttaetig rueckbares Ausbaugestell fuer bergmaennische Gewinnungsbetriebe |
| DE1161834B (de) * | 1962-06-14 | 1964-01-30 | Gewerk Eisenhuette Westfalia | Selbsttaetig rueckbares Ausbaugestell fuer bergmaennische Gewinnungsbetriebe |
-
1966
- 1966-02-07 FR FR48616A patent/FR1467502A/fr not_active Expired
- 1966-02-11 GB GB6098/66A patent/GB1132252A/en not_active Expired
- 1966-02-21 NL NL6602192A patent/NL6602192A/xx unknown
- 1966-02-21 BE BE676776D patent/BE676776A/xx unknown
-
1967
- 1967-10-06 US US673520A patent/US3415065A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| GB1132252A (en) | 1968-10-30 |
| US3415065A (en) | 1968-12-10 |
| FR1467502A (fr) | 1967-01-27 |
| NL6602192A (https=) | 1966-08-23 |