GB1177714A - Improvements in Movable Support Assemblies for Mineral Mines - Google Patents
Improvements in Movable Support Assemblies for Mineral MinesInfo
- Publication number
- GB1177714A GB1177714A GB5058867A GB5058867A GB1177714A GB 1177714 A GB1177714 A GB 1177714A GB 5058867 A GB5058867 A GB 5058867A GB 5058867 A GB5058867 A GB 5058867A GB 1177714 A GB1177714 A GB 1177714A
- Authority
- GB
- United Kingdom
- Prior art keywords
- frames
- advancing
- members
- movable support
- 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
- 230000000712 assembly Effects 0.000 title 1
- 238000000429 assembly Methods 0.000 title 1
- 229910052500 inorganic mineral Inorganic materials 0.000 title 1
- 239000011707 mineral Substances 0.000 title 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
- E21D23/0052—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)
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Abstract
1,177,714. Advancing mine roof supports. GEWERKSCHAFT EISENHUTTE WESTFALIA. 7 Nov., 1967, No. 50588/67. Heading E1P. In an advancing mine roof support assembly comprising two frames 10, 11 arranged in parallel with an advancing jack 16, 17 therebetween the latter is secured to the frames by a connection 18, 19, 20, 21 allowing a degree of free movement in the shifting direction during which period the shifting force is transmitted to a prop of the advancing frame by thrust means 22, 23. The members 18, 19 may be selectively connected to the frames in a given angular relationship, see Fig. 3, (not shown). In a further modification, Figs. 5 and 6, (not shown), the thrust means are received in tapered bores disposed in the members 18, 19 which are adjustably mounted on the associated frames by an eccentric bolt arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5058867A GB1177714A (en) | 1967-11-07 | 1967-11-07 | Improvements in Movable Support Assemblies for Mineral Mines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5058867A GB1177714A (en) | 1967-11-07 | 1967-11-07 | Improvements in Movable Support Assemblies for Mineral Mines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1177714A true GB1177714A (en) | 1970-01-14 |
Family
ID=10456517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5058867A Expired GB1177714A (en) | 1967-11-07 | 1967-11-07 | Improvements in Movable Support Assemblies for Mineral Mines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1177714A (en) |
-
1967
- 1967-11-07 GB GB5058867A patent/GB1177714A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |