BE824477A - SUPPORT DEVICE - Google Patents
SUPPORT DEVICEInfo
- Publication number
- BE824477A BE824477A BE152449A BE152449A BE824477A BE 824477 A BE824477 A BE 824477A BE 152449 A BE152449 A BE 152449A BE 152449 A BE152449 A BE 152449A BE 824477 A BE824477 A BE 824477A
- Authority
- BE
- Belgium
- Prior art keywords
- support device
- support
- Prior art date
Links
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
- E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
-
- 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
- E21D23/0017—Pile 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
- E21D23/03—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor having protective means, e.g. shields, for preventing or impeding entry of loose material into the working space or support
-
- 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
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
- E21D23/0409—Aligning or guiding means for the supports or for the constitutive parts of the supports
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)
- Architecture (AREA)
- Structural Engineering (AREA)
- Body Structure For Vehicles (AREA)
- Tents Or Canopies (AREA)
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2628/74A GB1512001A (en) | 1974-01-19 | 1974-01-19 | Mine roof support |
Publications (1)
Publication Number | Publication Date |
---|---|
BE824477A true BE824477A (en) | 1975-05-15 |
Family
ID=9742905
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE152449A BE824477A (en) | 1974-01-19 | 1975-01-17 | SUPPORT DEVICE |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE824477A (en) |
DE (1) | DE2502109B2 (en) |
GB (1) | GB1512001A (en) |
ZA (1) | ZA75367B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115288518A (en) * | 2022-09-20 | 2022-11-04 | 陈朝敬 | Safety support protection device for municipal foundation pit construction |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1568967A (en) * | 1976-02-06 | 1980-06-11 | Dowty Mining Equipment Ltd | Mine roof support |
DE2629788C3 (en) * | 1976-07-02 | 1981-08-13 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Device for dust extraction in underground mining operations using the hollow profiles of the support frames as extraction lines |
DE2646563C3 (en) * | 1976-10-15 | 1979-08-09 | Bochumer Eisenhuette Heintzmann Gmbh & Co, 4630 Bochum | Expansion for the hem area of a longwall |
DE2732339C2 (en) * | 1977-07-16 | 1990-03-29 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Longwall mining, especially longwall mining |
DE2808205C2 (en) * | 1978-02-25 | 1985-10-10 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Hydraulic control for a gap cover arranged on the cap or on the breakage shield of a walking support |
CN109869175A (en) * | 2019-03-15 | 2019-06-11 | 济宁矿业集团有限公司霄云煤矿 | A kind of hybrid advanced support method of fully-mechanized mining working |
CN109956396A (en) * | 2019-04-19 | 2019-07-02 | 安徽省矿业机电装备有限责任公司 | Modular bracket hoisting structure |
CN113653524A (en) * | 2021-09-22 | 2021-11-16 | 中国煤炭科工集团太原研究院有限公司 | Broken roof is synthesized and is adopted face hydraulic support withdrawal triangular space temporary support device |
-
1974
- 1974-01-19 GB GB2628/74A patent/GB1512001A/en not_active Expired
-
1975
- 1975-01-17 BE BE152449A patent/BE824477A/en not_active IP Right Cessation
- 1975-01-20 ZA ZA00750367A patent/ZA75367B/en unknown
- 1975-01-20 DE DE2502109A patent/DE2502109B2/en not_active Ceased
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115288518A (en) * | 2022-09-20 | 2022-11-04 | 陈朝敬 | Safety support protection device for municipal foundation pit construction |
Also Published As
Publication number | Publication date |
---|---|
GB1512001A (en) | 1978-05-24 |
ZA75367B (en) | 1976-03-31 |
DE2502109A1 (en) | 1975-07-24 |
DE2502109B2 (en) | 1978-10-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE | Patent lapsed |
Owner name: DOWTY MINING EQUIPMENT LTD Effective date: 19890131 |