GB2115048B - Mine roof supports - Google Patents
Mine roof supportsInfo
- Publication number
- GB2115048B GB2115048B GB08302271A GB8302271A GB2115048B GB 2115048 B GB2115048 B GB 2115048B GB 08302271 A GB08302271 A GB 08302271A GB 8302271 A GB8302271 A GB 8302271A GB 2115048 B GB2115048 B GB 2115048B
- Authority
- GB
- United Kingdom
- Prior art keywords
- mine roof
- roof supports
- supports
- mine
- 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
- E21D23/04—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
- E21D23/06—Special mine caps or special tops of pit-props for permitting step-by-step movement
- E21D23/066—Pivoted cantilever extensions therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Bridges Or Land Bridges (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB08302271A GB2115048B (en) | 1982-02-02 | 1983-01-27 | Mine roof supports |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8202977 | 1982-02-02 | ||
GB08302271A GB2115048B (en) | 1982-02-02 | 1983-01-27 | Mine roof supports |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8302271D0 GB8302271D0 (en) | 1983-03-02 |
GB2115048A GB2115048A (en) | 1983-09-01 |
GB2115048B true GB2115048B (en) | 1985-08-29 |
Family
ID=26281884
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB08302271A Expired GB2115048B (en) | 1982-02-02 | 1983-01-27 | Mine roof supports |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2115048B (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2182704B (en) * | 1985-11-08 | 1989-01-18 | Dobson Park Ind | Mine roof supports |
GB2192021B (en) * | 1986-06-26 | 1990-03-21 | Gullick Dobson Ltd | A roof engaging structure for a mine roof support |
GB2192659B (en) * | 1986-07-15 | 1990-04-11 | Gullick Dobson Ltd | Mine roof support roof engaging device |
GB2196371B (en) * | 1986-10-15 | 1990-05-09 | Gullick Dobson Ltd | Mine roof supports |
GB2220022B (en) * | 1988-06-24 | 1992-06-10 | Dowty Hucknall Limited | Mine roof support |
DD299446A5 (en) * | 1989-05-11 | 1992-04-16 | ��������@��@����������@��@��@����������@���������k�� | MOBILE REMOVAL CHAMBER DEVICE |
-
1983
- 1983-01-27 GB GB08302271A patent/GB2115048B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB2115048A (en) | 1983-09-01 |
GB8302271D0 (en) | 1983-03-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |