GB986316A - Roof support assembly suitable for use in mines - Google Patents
Roof support assembly suitable for use in minesInfo
- Publication number
- GB986316A GB986316A GB4676062A GB4676062A GB986316A GB 986316 A GB986316 A GB 986316A GB 4676062 A GB4676062 A GB 4676062A GB 4676062 A GB4676062 A GB 4676062A GB 986316 A GB986316 A GB 986316A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mines
- support assembly
- roof support
- assembly suitable
- 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
- 238000000034 method Methods 0.000 abstract 1
- 238000005065 mining 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
- E21D23/0052—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)
- Framework For Endless Conveyors (AREA)
Abstract
986,316. Advancing mine roof supports. DOWTY MINING EQUIPMENT Ltd. Dec. 10, 1963 [Dec. 11, 1962], No. 46760/62. Heading E1E. In a method of advancing either or both of two roof supports 1, 2 towards a conveyer 3, a fluid-pressure jack 8 pivoted to the conveyer carries a pulley 9 engaging a rope or chain 6 passing around guide pulleys 7 and fastened to the movable supports 1, 2. Each support comprises a floor bar 4 carrying three hydraulic props 5 supporting a roof bar (not shown).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4676062A GB986316A (en) | 1962-12-11 | 1962-12-11 | Roof support assembly suitable for use in mines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4676062A GB986316A (en) | 1962-12-11 | 1962-12-11 | Roof support assembly suitable for use in mines |
Publications (1)
Publication Number | Publication Date |
---|---|
GB986316A true GB986316A (en) | 1965-03-17 |
Family
ID=10442483
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4676062A Expired GB986316A (en) | 1962-12-11 | 1962-12-11 | Roof support assembly suitable for use in mines |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB986316A (en) |
-
1962
- 1962-12-11 GB GB4676062A patent/GB986316A/en not_active Expired
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