IN154919B - - Google Patents
Info
- Publication number
- IN154919B IN154919B IN745/DEL/80A IN745DE1980A IN154919B IN 154919 B IN154919 B IN 154919B IN 745DE1980 A IN745DE1980 A IN 745DE1980A IN 154919 B IN154919 B IN 154919B
- Authority
- IN
- India
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
- E21D23/04—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
-
- 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
- E21D23/0034—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 comprising a goaf shield articulated to a base member
- E21D23/0043—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 comprising a goaf shield articulated to a base member and supported by two or more rows of struts parallel to the working face
-
- 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
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)
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Auxiliary Methods And Devices For Loading And Unloading (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB7938879A GB2062735B (en) | 1979-11-09 | 1979-11-09 | Coal face support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IN154919B true IN154919B (oth) | 1984-12-22 |
Family
ID=10509090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IN745/DEL/80A IN154919B (oth) | 1979-11-09 | 1980-10-13 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4560306A (oth) |
| AU (1) | AU539027B2 (oth) |
| DE (1) | DE3042339A1 (oth) |
| GB (1) | GB2062735B (oth) |
| IN (1) | IN154919B (oth) |
| ZA (1) | ZA806339B (oth) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3940818A1 (de) * | 1989-12-09 | 1991-06-13 | Gewerk Eisenhuette Westfalia | Ausbaugestell mit einer vorrichtung zum abziehen des aus der oberbank nachbrechenden gewinnungsgutes |
| US6722177B1 (en) * | 2002-02-27 | 2004-04-20 | Natare Corporation | Slip-resistant aquatic component and method for making the same |
| CN101333931B (zh) * | 2008-07-31 | 2010-06-02 | 中国矿业大学 | 多层超静定液压支架 |
| CN101333928B (zh) * | 2008-07-31 | 2010-06-09 | 中国矿业大学 | 多层双叉型超静定液压支架 |
| CN101333929B (zh) * | 2008-07-31 | 2010-06-09 | 中国矿业大学 | 双层双叉型超静定液压支架 |
| CN101333930B (zh) * | 2008-07-31 | 2010-06-23 | 中国矿业大学 | 双叉型超静定液压支架 |
| CN103821548B (zh) * | 2014-01-22 | 2016-01-20 | 三一重型装备有限公司 | 一种抬底机构及液压支架 |
| CN113700514B (zh) * | 2021-09-26 | 2023-11-21 | 烟建集团有限公司 | 一种隧道支撑结构及其使用方法 |
| CN114046167A (zh) * | 2021-11-10 | 2022-02-15 | 晋能控股装备制造集团金鼎山西煤机有限责任公司 | 基于无梁端距高强护帮的液压支架的优化设计方法 |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1051783A (oth) * | 1900-01-01 | |||
| US2062657A (en) * | 1933-08-11 | 1936-12-01 | Sullivan Machinery Co | Coal mining machine |
| GB1091602A (en) * | 1964-03-10 | 1967-11-22 | Dowty Mining Equipment Ltd | Roof support suitable for use in mines |
| DE1288042B (oth) * | 1965-03-04 | |||
| GB1287096A (en) * | 1968-10-17 | 1972-08-31 | Karl Maria Groetschel | Improvements relating to advancing roof supports for mine workings |
| US3564857A (en) * | 1969-01-23 | 1971-02-23 | Hans Joachim Von Hippel | Apparatus for protecting underground excavations against collapse |
| GB1404594A (en) * | 1972-04-05 | 1975-09-03 | Gullick Dobson Ltd | Mine roof supports |
| GB1429799A (en) * | 1973-01-26 | 1976-03-24 | Gullick Dobson Ltd | Mine roof supports |
| GB1416211A (en) * | 1973-02-12 | 1975-12-03 | Taiheiyo Coal Mining Co Ltd | Self-advancing roof support incorporating a wall protector |
| US3830324A (en) * | 1973-08-20 | 1974-08-20 | Hydranautics | Transporter for heavy loads |
| US3921739A (en) * | 1974-09-30 | 1975-11-25 | Farmer Foundation Company | Walking platform for drilling rigs and other heavy machinery |
| AU527664B2 (en) * | 1978-04-20 | 1983-03-17 | Huwood Ltd. | Mine roof support |
-
1979
- 1979-11-09 GB GB7938879A patent/GB2062735B/en not_active Expired
-
1980
- 1980-10-13 IN IN745/DEL/80A patent/IN154919B/en unknown
- 1980-10-15 ZA ZA00806339A patent/ZA806339B/xx unknown
- 1980-11-04 AU AU64069/80A patent/AU539027B2/en not_active Ceased
- 1980-11-10 DE DE19803042339 patent/DE3042339A1/de not_active Withdrawn
-
1983
- 1983-04-05 US US06/482,373 patent/US4560306A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| US4560306A (en) | 1985-12-24 |
| AU539027B2 (en) | 1984-09-06 |
| DE3042339A1 (de) | 1981-05-21 |
| AU6406980A (en) | 1981-05-14 |
| GB2062735A (en) | 1981-05-28 |
| ZA806339B (en) | 1981-10-28 |
| GB2062735B (en) | 1983-08-10 |