IN152998B - - Google Patents
Info
- Publication number
- IN152998B IN152998B IN595/DEL/79A IN595DE1979A IN152998B IN 152998 B IN152998 B IN 152998B IN 595DE1979 A IN595DE1979 A IN 595DE1979A IN 152998 B IN152998 B IN 152998B
- 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
- E21D23/04—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
- E21D23/0427—Shield operating devices; Hinges therefor
-
- 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
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)
- Lining And Supports For Tunnels (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB7837100 | 1978-09-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IN152998B true IN152998B (de) | 1984-05-19 |
Family
ID=10499724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IN595/DEL/79A IN152998B (de) | 1978-09-16 | 1979-08-20 |
Country Status (4)
| Country | Link |
|---|---|
| AU (1) | AU528017B2 (de) |
| CA (1) | CA1122022A (de) |
| DE (1) | DE2933880A1 (de) |
| IN (1) | IN152998B (de) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1166241A (en) * | 1966-01-04 | 1969-10-08 | Coal Industry Patents Ltd | Inclined-Prop Powered Support. |
| DE2600455C3 (de) * | 1976-01-08 | 1981-12-24 | Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal | Hydraulisches Schildausbaugestell |
| ZA762055B (en) * | 1976-04-08 | 1977-05-25 | Dowty Mining Equipment Ltd | Mine roorf support |
-
1979
- 1979-08-20 IN IN595/DEL/79A patent/IN152998B/en unknown
- 1979-08-21 AU AU50115/79A patent/AU528017B2/en not_active Ceased
- 1979-08-22 DE DE19792933880 patent/DE2933880A1/de active Granted
- 1979-08-23 CA CA000334345A patent/CA1122022A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| AU528017B2 (en) | 1983-03-31 |
| AU5011579A (en) | 1980-03-27 |
| DE2933880C2 (de) | 1988-05-26 |
| DE2933880A1 (de) | 1980-04-03 |
| CA1122022A (en) | 1982-04-20 |