ZA907631B - Temporary roof support system - Google Patents
Temporary roof support systemInfo
- Publication number
- ZA907631B ZA907631B ZA907631A ZA907631A ZA907631B ZA 907631 B ZA907631 B ZA 907631B ZA 907631 A ZA907631 A ZA 907631A ZA 907631 A ZA907631 A ZA 907631A ZA 907631 B ZA907631 B ZA 907631B
- Authority
- ZA
- South Africa
- Prior art keywords
- support system
- roof support
- temporary roof
- temporary
- support
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
- E21D9/1006—Making by using boring or cutting machines with rotary cutting tools
- E21D9/1013—Making by using boring or cutting machines with rotary cutting tools on a tool-carrier supported by a movable boom
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G25/00—Shores or struts; Chocks
- E04G25/04—Shores or struts; Chocks telescopic
- E04G2025/047—Shores or struts; Chocks telescopic which telescoping action effected by a piston
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)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
- Actuator (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/437,486 US5026218A (en) | 1989-11-16 | 1989-11-16 | Temporary roof support cylinder |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA907631B true ZA907631B (en) | 1991-08-28 |
Family
ID=23736655
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA907631A ZA907631B (en) | 1989-11-16 | 1990-09-25 | Temporary roof support system |
Country Status (5)
Country | Link |
---|---|
US (1) | US5026218A (xx) |
AU (1) | AU623278B2 (xx) |
DE (1) | DE4034149C2 (xx) |
GB (1) | GB2239052B (xx) |
ZA (1) | ZA907631B (xx) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9005343U1 (de) * | 1990-05-11 | 1990-08-30 | Heiliger, Robert Wilhelm, 5166 Kreuzau | Hydraulischer Stahlgrubenstempel |
AU2001296806A1 (en) | 2000-10-06 | 2002-04-15 | Randall Lee Morris | Conveyor chain for mining machinery |
US20060214496A1 (en) * | 2005-03-22 | 2006-09-28 | Avistar, Inc. | Mining roof support cylinder corrosion protection apparatus and method |
US7607866B2 (en) * | 2006-06-07 | 2009-10-27 | Joy Mm Delaware, Inc. | Drilling rig |
US10875717B2 (en) | 2008-09-22 | 2020-12-29 | The Cincinnati Mine Machinery Company | Conveyor chain |
US8453826B2 (en) * | 2008-09-22 | 2013-06-04 | The Cincinnati Mine Machinery Company | Conveyor chain |
US9227787B2 (en) | 2008-09-22 | 2016-01-05 | The Cincinnati Mine Machinery Company | Conveyor chain |
US9487358B2 (en) | 2008-09-22 | 2016-11-08 | The Cincinnati Mine Machinery Company | Conveyor chain |
US8936146B2 (en) | 2008-09-22 | 2015-01-20 | The Cincinnati Mine Machinery Company | Conveyor chain |
DE102009031520A1 (de) * | 2009-07-02 | 2011-01-13 | David Tsai | Verstellbare Laststütze |
US20120148350A1 (en) * | 2010-12-10 | 2012-06-14 | Kenneth Poulson | Mine prop jack and method of prestressing a mine prop |
CN102536274B (zh) * | 2012-01-10 | 2014-05-14 | 中煤北京煤矿机械有限责任公司 | 等压双伸缩立柱 |
CN103046938B (zh) * | 2013-01-12 | 2015-11-04 | 杨学恒 | 矿用单体液压支柱 |
CN104775835B (zh) * | 2015-01-26 | 2016-08-24 | 中国矿业大学 | 一种自调节磁流变液单体支柱 |
RU2019103092A (ru) | 2016-07-06 | 2020-08-10 | ДЖОЙ ГЛОБАЛ АНДЕРГРАУНД МАЙНИНГ ЭлЭлСи | Электрическое устройство для бурения и постановки анкерной крепи |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1289506C2 (de) * | 1963-08-29 | 1974-03-28 | Hydraulisches abstuetzelement | |
DE2032455A1 (de) * | 1970-07-01 | 1972-01-05 | Rheinische Stahlwerke, 4300 Essen | Hydraulischer Grubenstempel mit zwei ausfahrbaren Teleskopstufen |
SU390280A1 (ru) * | 1972-03-21 | 1973-07-11 | Гидравлическая стойка двойной раздвижности | |
SU870730A1 (ru) * | 1979-04-05 | 1981-10-07 | За вители Калинин, П. С. Дементеев, А. Коровкин и М. С, Коробов | Руднична стойка |
US4252475A (en) * | 1979-04-16 | 1981-02-24 | Schroeder Brothers Corporation | Vehicle mounted temporary roof support |
DE3150643A1 (de) * | 1981-12-21 | 1983-06-30 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Hydraulischer teleskopstempel, insbesondere fuer einen untertaegigen schreitausbau, wie vor allem schildausbaugestelle |
DE3521818A1 (de) * | 1985-06-19 | 1987-01-02 | Kloeckner Becorit Gmbh | Dreifachteleskopstempel |
DE3535009A1 (de) * | 1985-10-01 | 1987-04-09 | Thyssen Ind Ag Schmiedetechnik | Mehrfachteleskopstempel |
DE3923376C1 (en) * | 1989-07-14 | 1990-07-05 | Paurat Gmbh, 4223 Voerde, De | Self propelling machine for mining coal - comprises platform supported by vertical hydraulic jacks and raking jacks |
-
1989
- 1989-11-16 US US07/437,486 patent/US5026218A/en not_active Expired - Fee Related
-
1990
- 1990-09-03 AU AU62108/90A patent/AU623278B2/en not_active Ceased
- 1990-09-25 ZA ZA907631A patent/ZA907631B/xx unknown
- 1990-10-26 DE DE4034149A patent/DE4034149C2/de not_active Expired - Fee Related
- 1990-11-15 GB GB9024878A patent/GB2239052B/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
AU6210890A (en) | 1991-05-23 |
US5026218A (en) | 1991-06-25 |
AU623278B2 (en) | 1992-05-07 |
GB2239052A (en) | 1991-06-19 |
DE4034149A1 (de) | 1991-05-23 |
GB9024878D0 (en) | 1991-01-02 |
DE4034149C2 (de) | 2001-03-15 |
GB2239052B (en) | 1993-10-20 |
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