IN151643B - - Google Patents
Info
- Publication number
- IN151643B IN151643B IN1237/CAL/79A IN1237CA1979A IN151643B IN 151643 B IN151643 B IN 151643B IN 1237CA1979 A IN1237CA1979 A IN 1237CA1979A IN 151643 B IN151643 B IN 151643B
- Authority
- IN
- India
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
- E21D23/0004—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face
- E21D23/0034—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face comprising a goaf shield articulated to a base member
- E21D23/0043—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face comprising a goaf shield articulated to a base member and supported by two or more rows of struts parallel to the working face
-
- 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
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)
- Excavating Of Shafts Or Tunnels (AREA)
- Lining And Supports For Tunnels (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB7846370 | 1978-11-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IN151643B true IN151643B (fr) | 1983-06-18 |
Family
ID=10501370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IN1237/CAL/79A IN151643B (fr) | 1978-11-28 | 1979-11-26 |
Country Status (4)
| Country | Link |
|---|---|
| AU (1) | AU529191B2 (fr) |
| CA (1) | CA1108420A (fr) |
| DE (1) | DE2947654A1 (fr) |
| IN (1) | IN151643B (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114233358B (zh) * | 2021-12-29 | 2024-04-12 | 安阳永安贺驼煤矿有限公司 | 回采巷道顶部囊袋式充填支架装置 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2850073A1 (de) * | 1978-11-18 | 1980-05-29 | Fletcher Sutcliffe Wild Ltd | Grubenausbau, insbesondere strebausbau |
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1979
- 1979-11-26 IN IN1237/CAL/79A patent/IN151643B/en unknown
- 1979-11-27 DE DE19792947654 patent/DE2947654A1/de active Granted
- 1979-11-27 AU AU53202/79A patent/AU529191B2/en not_active Ceased
- 1979-11-28 CA CA340,822A patent/CA1108420A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| AU529191B2 (en) | 1983-05-26 |
| DE2947654A1 (de) | 1980-06-04 |
| CA1108420A (fr) | 1981-09-08 |
| AU5320279A (en) | 1980-05-29 |
| DE2947654C2 (fr) | 1988-03-17 |