GB1072453A - Improvements in or relating to advancing hydraulic mine roof supports - Google Patents
Improvements in or relating to advancing hydraulic mine roof supportsInfo
- Publication number
- GB1072453A GB1072453A GB476664A GB476664A GB1072453A GB 1072453 A GB1072453 A GB 1072453A GB 476664 A GB476664 A GB 476664A GB 476664 A GB476664 A GB 476664A GB 1072453 A GB1072453 A GB 1072453A
- Authority
- GB
- United Kingdom
- Prior art keywords
- roof
- props
- guide bars
- relating
- feb
- 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
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract 1
- 239000011707 mineral 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
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
1,072,453. Advancing mine-roof supports. GULLICK Ltd. Feb. 2, 1965 [Feb. 4, 1964; March 20, 1964], Nos. 4766/64 and 11977/64. Heading E1E. [Also in Division F1] In an advancing mine roof support system comprising a plurality of sequentially advanced groups at units (A to F) Fig. 1 (not shown) arranged one behind the other and each comprising a plurality of double-acting hydraulic props (1) each secured at its lower end to a floor plate (10) and bearing at its upper end against a roof bar (12) extending in the direction of length of the mineral face, advancement of any particular group of props is effected along parallel guide bars (13) extending along opposite sides of all the groups and secured to the roof bars thereof; the props being suspended from the guide bars with their upper and lower ends free of the roof and floor. The props are advanced by hydraulic jacks (14, 15). In a modification the guide bars are laterally adjustable by further hydraulic jacks (19 to 21).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB476664A GB1072453A (en) | 1964-02-04 | 1964-02-04 | Improvements in or relating to advancing hydraulic mine roof supports |
| DE19651458679 DE1458679C3 (en) | 1964-02-04 | 1965-02-03 | Wandering expansion for underground mining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB476664A GB1072453A (en) | 1964-02-04 | 1964-02-04 | Improvements in or relating to advancing hydraulic mine roof supports |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1072453A true GB1072453A (en) | 1967-06-14 |
Family
ID=9783392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB476664A Expired GB1072453A (en) | 1964-02-04 | 1964-02-04 | Improvements in or relating to advancing hydraulic mine roof supports |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1072453A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2415720A1 (en) * | 1978-01-27 | 1979-08-24 | Stephanois Constr Meca | Mine gallery roof support - has three relatively movable portal frames, with hydraulically-operated shoes supportable against caps |
-
1964
- 1964-02-04 GB GB476664A patent/GB1072453A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2415720A1 (en) * | 1978-01-27 | 1979-08-24 | Stephanois Constr Meca | Mine gallery roof support - has three relatively movable portal frames, with hydraulically-operated shoes supportable against caps |
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