GB1491466A - Self-advancing mine roof supports - Google Patents
Self-advancing mine roof supportsInfo
- Publication number
- GB1491466A GB1491466A GB1043374A GB1043374A GB1491466A GB 1491466 A GB1491466 A GB 1491466A GB 1043374 A GB1043374 A GB 1043374A GB 1043374 A GB1043374 A GB 1043374A GB 1491466 A GB1491466 A GB 1491466A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mine roof
- advancing
- roof supports
- self
- advancing mine
- 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
- 238000012986 modification Methods 0.000 abstract 1
- 230000004048 modification Effects 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
- E21D23/0004—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face
- E21D23/0013—Frame type supports
-
- 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
- E21D23/08—Advancing mechanisms
- E21D23/081—Advancing mechanisms forming parts of the roof supports
- E21D23/085—Advancing mechanisms forming parts of the roof supports acting on a conveyor or a guide for the mining machine
- E21D23/086—Details of fixing devices therefor
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)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
1491466 Advancing mine roof supports GULLICK DOBSON Ltd 21 Jan 1975 [8 March 1974] 10433/74 Heading E1P In an advancing mine roof support having its advancing ram connected to an anchorage such as the conveyor via connecting means such as a relay bar, the connecting means is made adjustable in length. As shown, the relay bar 22 may consist of two telescopic sections 22a, 22b having adjustable pin-andslot connection means 27, see also Fig. 3 of Provisional Drawings (not shown). For minor modifications the Specification should be referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1043374A GB1491466A (en) | 1975-01-21 | 1975-01-21 | Self-advancing mine roof supports |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1043374A GB1491466A (en) | 1975-01-21 | 1975-01-21 | Self-advancing mine roof supports |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1491466A true GB1491466A (en) | 1977-11-09 |
Family
ID=9967759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1043374A Expired GB1491466A (en) | 1975-01-21 | 1975-01-21 | Self-advancing mine roof supports |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1491466A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4055924A (en) * | 1976-03-10 | 1977-11-01 | Beaver Jr Emil R | Inexpensive and disassemblable structural units |
| CN107227970A (en) * | 2017-06-20 | 2017-10-03 | 山西平阳重工机械有限责任公司 | Electro-hydraulic control termination lapping hydraulic bracket |
| CN107355247A (en) * | 2017-09-05 | 2017-11-17 | 淮南矿业(集团)有限责任公司 | A kind of fully-mechanized mining working Rapid Freon-feeding pressure support and extension transporter tail method |
-
1975
- 1975-01-21 GB GB1043374A patent/GB1491466A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4055924A (en) * | 1976-03-10 | 1977-11-01 | Beaver Jr Emil R | Inexpensive and disassemblable structural units |
| CN107227970A (en) * | 2017-06-20 | 2017-10-03 | 山西平阳重工机械有限责任公司 | Electro-hydraulic control termination lapping hydraulic bracket |
| CN107355247A (en) * | 2017-09-05 | 2017-11-17 | 淮南矿业(集团)有限责任公司 | A kind of fully-mechanized mining working Rapid Freon-feeding pressure support and extension transporter tail method |
| CN107355247B (en) * | 2017-09-05 | 2020-04-21 | 淮南矿业(集团)有限责任公司 | Method for quickly adding hydraulic support to fully mechanized coal mining face and extending tail of conveyor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |