GB1013615A - Improvements in or relating to a road-head support system for mines and a method forthe operation thereof - Google Patents
Improvements in or relating to a road-head support system for mines and a method forthe operation thereofInfo
- Publication number
- GB1013615A GB1013615A GB1896263A GB1896263A GB1013615A GB 1013615 A GB1013615 A GB 1013615A GB 1896263 A GB1896263 A GB 1896263A GB 1896263 A GB1896263 A GB 1896263A GB 1013615 A GB1013615 A GB 1013615A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cut
- roof
- elements
- advanced
- support
- 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
- E21D23/0004—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
- E21D23/0017—Pile type 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)
- Road Repair (AREA)
Abstract
1,013,615. Advancing mine roof supports. GULLICK Ltd. May 13, 1964 [May 14, 1963], No. 18962/63. Heading E1E. A hydraulic actuated advancing mine roof support system comprises a forward roof support element A Fig. 1 in advance of the gear head (shown in broken lines) and having roof bars 12 projecting rearwardly over the gear head and forwardly towards the stable face S, a rear roof supporting element C having a roof bar 12 projecting forwardly over a gear headcarrying element B also having roof bars 18 extending over the gear head and having a skid 16 Fig. 2 on which the gear head is mounted; the three said support elements A, B, C being connected in line by hydraulic rams 11 for sequential advance such that after the first cut element B is lowered, advanced and reset, during the second cut the forward support element A is advanced followed by the rear element C, after completion of the second cut element B is again advanced and after the third cut elements A, C are sequentially advanced prior to the fourth cut which completes the cycle. As shown three groups of elements A, B and C are arranged in parallel and two of the groups are each associated with forward and rear ripping lip support elements D, E having roof support bars 24, 26 and hydraulic props 22, 25. Initially supports D, E are close up to C and after the second cut are moved up to C and a web of ripping equal in depth to two cuts is taken during the fourth cut. For the drawing off operation elements E are closed up to D, D is closed up to C and E is closed up to D again.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1896263A GB1013615A (en) | 1963-05-14 | 1963-05-14 | Improvements in or relating to a road-head support system for mines and a method forthe operation thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1896263A GB1013615A (en) | 1963-05-14 | 1963-05-14 | Improvements in or relating to a road-head support system for mines and a method forthe operation thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1013615A true GB1013615A (en) | 1965-12-15 |
Family
ID=10121428
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1896263A Expired GB1013615A (en) | 1963-05-14 | 1963-05-14 | Improvements in or relating to a road-head support system for mines and a method forthe operation thereof |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1013615A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4183700A (en) * | 1977-10-08 | 1980-01-15 | Bochumer Eisenhutte Heintzmann Gmbh | Walking mine support |
-
1963
- 1963-05-14 GB GB1896263A patent/GB1013615A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4183700A (en) * | 1977-10-08 | 1980-01-15 | Bochumer Eisenhutte Heintzmann Gmbh | Walking mine support |
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