IN156673B - - Google Patents
Info
- Publication number
- IN156673B IN156673B IN1311/CAL/82A IN1311CA1982A IN156673B IN 156673 B IN156673 B IN 156673B IN 1311CA1982 A IN1311CA1982 A IN 1311CA1982A IN 156673 B IN156673 B IN 156673B
- 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
- E21D23/08—Advancing mechanisms
- E21D23/081—Advancing mechanisms forming parts of the roof supports
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)
- Pistons, Piston Rings, And Cylinders (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB08201227A GB2115046B (en) | 1982-01-16 | 1982-01-16 | Self-advancing roof supports |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IN156673B true IN156673B (en) | 1985-10-12 |
Family
ID=10527672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IN1311/CAL/82A IN156673B (en) | 1982-01-16 | 1982-11-09 |
Country Status (5)
| Country | Link |
|---|---|
| AU (1) | AU540247B2 (en) |
| DE (1) | DE3301262A1 (en) |
| GB (1) | GB2115046B (en) |
| IN (1) | IN156673B (en) |
| ZA (1) | ZA827321B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2143882B (en) * | 1983-07-23 | 1986-11-05 | Dowty Mining Equipment Ltd | Shield supports suitable for use in mines |
| DE3400771A1 (en) * | 1984-01-12 | 1985-07-18 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | EXTENSION FRAME, IN PARTICULAR SHIELD EXTENSION FRAME, WITH A LIFTING DEVICE FOR LIFTING THE RECESSED RUNNERS |
| HU194596B (en) * | 1985-08-22 | 1988-02-29 | Oroszlanyi Szenbanyak | Supporting unit at underground widework for mechanized supporting equipment |
| DE3539801A1 (en) * | 1985-11-09 | 1987-05-14 | Gewerk Eisenhuette Westfalia | Powered support assembly, in particular shield-type powered support assembly, with walking mechanism |
| GB2237837A (en) * | 1989-11-11 | 1991-05-15 | Meco Mining Equip | Mine roof support assembly |
| DE4110681A1 (en) * | 1991-04-03 | 1992-10-08 | Bochumer Eisen Heintzmann | SCREW EXTENSION RACK FOR MINING UNDERGROUND COMPANIES |
| CN102748054B (en) * | 2012-07-03 | 2014-08-13 | 三一重型装备有限公司 | Hydraulic bracket pushing mechanism and hydraulic bracket |
| CN104196552A (en) * | 2014-07-16 | 2014-12-10 | 三一重型装备有限公司 | Bottom lifting device and hydraulic support |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1503750A (en) * | 1975-05-22 | 1978-03-15 | Fletcher Sutcliffe Wild Ltd | Mining equipment |
-
1982
- 1982-01-16 GB GB08201227A patent/GB2115046B/en not_active Expired
- 1982-10-06 ZA ZA827321A patent/ZA827321B/en unknown
- 1982-10-19 AU AU89490/82A patent/AU540247B2/en not_active Ceased
- 1982-11-09 IN IN1311/CAL/82A patent/IN156673B/en unknown
-
1983
- 1983-01-17 DE DE19833301262 patent/DE3301262A1/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| ZA827321B (en) | 1983-08-31 |
| DE3301262A1 (en) | 1983-07-28 |
| GB2115046A (en) | 1983-09-01 |
| GB2115046B (en) | 1985-06-26 |
| AU8949082A (en) | 1983-09-08 |
| AU540247B2 (en) | 1984-11-08 |