AU4459672A - Improvements in or relating to mine roof supports - Google Patents
Improvements in or relating to mine roof supportsInfo
- Publication number
- AU4459672A AU4459672A AU44596/72A AU4459672A AU4459672A AU 4459672 A AU4459672 A AU 4459672A AU 44596/72 A AU44596/72 A AU 44596/72A AU 4459672 A AU4459672 A AU 4459672A AU 4459672 A AU4459672 A AU 4459672A
- Authority
- AU
- Australia
- Prior art keywords
- relating
- mine roof
- roof supports
- supports
- mine
- 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
- E21D23/0052—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor with advancing shifting devices connected therewith
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)
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Treatment Of Fiber Materials (AREA)
- Road Signs Or Road Markings (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3342171A GB1388842A (en) | 1971-07-16 | 1971-07-16 | Mine roof supports |
| GBGB33421 | 1971-07-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU4459672A true AU4459672A (en) | 1974-01-17 |
Family
ID=10352748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU44596/72A Expired AU4459672A (en) | 1971-07-16 | 1972-07-14 | Improvements in or relating to mine roof supports |
Country Status (3)
| Country | Link |
|---|---|
| AU (1) | AU4459672A (en) |
| DE (1) | DE2233673C3 (en) |
| GB (1) | GB1388842A (en) |
-
1971
- 1971-07-16 GB GB3342171A patent/GB1388842A/en not_active Expired
-
1972
- 1972-07-08 DE DE19722233673 patent/DE2233673C3/en not_active Expired
- 1972-07-14 AU AU44596/72A patent/AU4459672A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2233673A1 (en) | 1973-02-01 |
| DE2233673C3 (en) | 1975-03-13 |
| DE2233673B2 (en) | 1974-07-25 |
| GB1388842A (en) | 1975-03-26 |
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