ES354667A1 - Improvements in or relating to movable support assemblies for mineral mines - Google Patents
Improvements in or relating to movable support assemblies for mineral minesInfo
- Publication number
- ES354667A1 ES354667A1 ES354667A ES354667A ES354667A1 ES 354667 A1 ES354667 A1 ES 354667A1 ES 354667 A ES354667 A ES 354667A ES 354667 A ES354667 A ES 354667A ES 354667 A1 ES354667 A1 ES 354667A1
- Authority
- ES
- Spain
- Prior art keywords
- frames
- relating
- movable support
- support assemblies
- aligning device
- 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
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
- E21D23/006—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices
- E21D23/0069—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices without essential advancing shifting devices
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)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
In an advancing mine roof support assembly comprising two frames I, II arranged in parallel for alternate advance by jack means not shown and wherein the shifting distance of each frame is greater than the spacing therebetween, the frames are interconnected by at least one aligning device R which is fully extended and disposed obliquely relative to the shifting direction when the frames are aligned as shown. The aligning device is in the form of one or more piston and cylinder units for details of which together with mode of attachment to the props the Specification and remaining drawings (not shown) should be referred to.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEG0042902 | 1965-02-22 | ||
| DEG0051386 | 1967-10-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES354667A1 true ES354667A1 (en) | 1970-02-16 |
Family
ID=7129745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES354667A Expired ES354667A1 (en) | 1965-02-22 | 1968-06-04 | Improvements in or relating to movable support assemblies for mineral mines |
Country Status (3)
| Country | Link |
|---|---|
| ES (1) | ES354667A1 (en) |
| FR (1) | FR95558E (en) |
| GB (1) | GB1174206A (en) |
-
1968
- 1968-05-29 GB GB2570768A patent/GB1174206A/en not_active Expired
- 1968-06-04 ES ES354667A patent/ES354667A1/en not_active Expired
- 1968-07-03 FR FR157650A patent/FR95558E/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR95558E (en) | 1971-03-26 |
| GB1174206A (en) | 1969-12-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FD1A | Patent lapsed |
Effective date: 19860226 |