JPS4810681B1 - - Google Patents
Info
- Publication number
- JPS4810681B1 JPS4810681B1 JP43078339A JP7833968A JPS4810681B1 JP S4810681 B1 JPS4810681 B1 JP S4810681B1 JP 43078339 A JP43078339 A JP 43078339A JP 7833968 A JP7833968 A JP 7833968A JP S4810681 B1 JPS4810681 B1 JP S4810681B1
- Authority
- JP
- Japan
- 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.)
- Pending
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
- E21D23/006—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices
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)
- Lining And Supports For Tunnels (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4955667A GB1235288A (en) | 1967-11-01 | 1967-11-01 | Improvements in or relating to self-advancing mine roof supports |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4810681B1 true JPS4810681B1 (en) | 1973-04-06 |
Family
ID=10452729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP43078339A Pending JPS4810681B1 (en) | 1967-11-01 | 1968-10-29 |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS4810681B1 (en) |
| DE (1) | DE1801565B1 (en) |
| FR (1) | FR1588074A (en) |
| GB (1) | GB1235288A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3544349A1 (en) * | 1985-12-14 | 1987-06-19 | Gewerk Eisenhuette Westfalia | Hydraulic directional support for self-advancing support assemblies |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1252158B (en) * | 1967-10-19 | Dowty Mining Equipment Limited, Ashchurch, Tewkesbury, Gloucester (Großbritannien) | Pit lining with a device for aligning the rear cylinders | |
| DE1215633B (en) * | 1960-08-31 | 1966-05-05 | Gullick Ltd | Hiking pillar extension for strut in inclined storage |
| DE1208719B (en) * | 1962-06-29 | 1966-01-13 | Dowty Mining Equipment Ltd | Wandering single frame for longwall construction |
| DE1247992B (en) * | 1965-04-23 | 1967-08-24 | Karl Maria Groetschel Dipl Ing | Guide element that can be used between two adjacent expansion units |
-
1967
- 1967-11-01 GB GB4955667A patent/GB1235288A/en not_active Expired
-
1968
- 1968-10-05 DE DE19681801565 patent/DE1801565B1/en active Pending
- 1968-10-28 FR FR1588074D patent/FR1588074A/fr not_active Expired
- 1968-10-29 JP JP43078339A patent/JPS4810681B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE1801565B1 (en) | 1971-07-29 |
| FR1588074A (en) | 1970-04-03 |
| GB1235288A (en) | 1971-06-09 |