AU514013B2 - Mine roof support - Google Patents
Mine roof supportInfo
- Publication number
- AU514013B2 AU514013B2 AU31761/77A AU3176177A AU514013B2 AU 514013 B2 AU514013 B2 AU 514013B2 AU 31761/77 A AU31761/77 A AU 31761/77A AU 3176177 A AU3176177 A AU 3176177A AU 514013 B2 AU514013 B2 AU 514013B2
- Authority
- AU
- Australia
- Prior art keywords
- roof support
- mine roof
- mine
- support
- roof
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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
- E21D23/087—Advancing mechanisms forming parts of the roof supports acting directly on the walls of the seam
- E21D23/088—Advancing mechanisms forming parts of the roof supports acting directly on the walls of the seam by means of wheels, rollers, caterpillars, belts or worm screws
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)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU31761/77A AU514013B2 (en) | 1977-12-19 | 1977-12-19 | Mine roof support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU31761/77A AU514013B2 (en) | 1977-12-19 | 1977-12-19 | Mine roof support |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU3176177A AU3176177A (en) | 1979-06-28 |
| AU514013B2 true AU514013B2 (en) | 1981-01-22 |
Family
ID=3719421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU31761/77A Expired AU514013B2 (en) | 1977-12-19 | 1977-12-19 | Mine roof support |
Country Status (1)
| Country | Link |
|---|---|
| AU (1) | AU514013B2 (en) |
-
1977
- 1977-12-19 AU AU31761/77A patent/AU514013B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| AU3176177A (en) | 1979-06-28 |
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