GB1009051A - Advancing mine roof support systems - Google Patents
Advancing mine roof support systemsInfo
- Publication number
- GB1009051A GB1009051A GB633461A GB633461A GB1009051A GB 1009051 A GB1009051 A GB 1009051A GB 633461 A GB633461 A GB 633461A GB 633461 A GB633461 A GB 633461A GB 1009051 A GB1009051 A GB 1009051A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bars
- props
- roof
- advancing
- conveyer
- 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
- 239000003245 coal Substances 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
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
- E21D23/0086—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor in galleries
- E21D23/0091—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor in galleries at the junction with the working face
-
- 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)
Abstract
1,009,051. Advancing mine roof supports. COAL INDUSTRY (PATENTS) Ltd. Feb. 20, 1962 [Feb. 21, 1961], No. 6334/61. Heading E1E. A mine roof support advancing in direction D comprises three pairs of hydraulic props 7 which carry roof bars 10 and are attached to the drive-unit underframe 1a of a face conveyer 14, and two pairs of props 2 which carry roof bars 9 and are connected by advancing rams, Fig. 2 (not shown) to the frame 1a. Floor bars 5 for the props 2 pass beneath the underframe 1a.) The face. conveyer 14 feeds a gate conveyer 15 and is driven by two motor-gearbox pairs 21-17. On the other side of conveyer 15 is a single prop 18 which carries a roof bar 13 and is connected by an advancing ram, Fig. 2 (not shown) to the bar of one of a pair of props 22 carrying roof bars 23. Provision 12 is made for the attachment of cantilever bars, and the bars 9 and 10 themselves may be replaced by articulated bars. In a modification the bases 8 of the props 7 have pin and vertical slot connections with the frame 1a to allow for undulations in the mine floor, and the bases of the props 2 in each pair are connected by wire ropes passing beneath the underframe 1a.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB633461A GB1009051A (en) | 1961-02-21 | 1961-02-21 | Advancing mine roof support systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB633461A GB1009051A (en) | 1961-02-21 | 1961-02-21 | Advancing mine roof support systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1009051A true GB1009051A (en) | 1965-11-03 |
Family
ID=9812600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB633461A Expired GB1009051A (en) | 1961-02-21 | 1961-02-21 | Advancing mine roof support systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1009051A (en) |
-
1961
- 1961-02-21 GB GB633461A patent/GB1009051A/en not_active Expired
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