ZA752667B - An arrangement of supporting members - Google Patents
An arrangement of supporting membersInfo
- Publication number
- ZA752667B ZA752667B ZA00752667A ZA752667A ZA752667B ZA 752667 B ZA752667 B ZA 752667B ZA 00752667 A ZA00752667 A ZA 00752667A ZA 752667 A ZA752667 A ZA 752667A ZA 752667 B ZA752667 B ZA 752667B
- Authority
- ZA
- South Africa
- Prior art keywords
- arrangement
- supporting members
- members
- supporting
- 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
- E21D23/0004—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
- E21D23/0039—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 a strut or by a row 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
- E21D23/04—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
- E21D23/0427—Shield operating devices; Hinges 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)
- Architecture (AREA)
- Structural Engineering (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2422591A DE2422591A1 (en) | 1974-05-09 | 1974-05-09 | ARRANGEMENT OF SUPPORT ELEMENTS |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA752667B true ZA752667B (en) | 1976-07-28 |
Family
ID=5915144
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA00752667A ZA752667B (en) | 1974-05-09 | 1975-04-24 | An arrangement of supporting members |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE2422591A1 (en) |
GB (1) | GB1477947A (en) |
ZA (1) | ZA752667B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2506076C2 (en) * | 1975-02-13 | 1976-11-18 | Rheinstahl Ag | SHIELD REMOVAL FOR STRUTS |
DE2617141C3 (en) * | 1976-04-17 | 1984-07-05 | Thyssen Industrie Ag, 4300 Essen | Cap and break shield construction for a shield support frame |
-
1974
- 1974-05-09 DE DE2422591A patent/DE2422591A1/en active Pending
-
1975
- 1975-03-25 GB GB1245875A patent/GB1477947A/en not_active Expired
- 1975-04-24 ZA ZA00752667A patent/ZA752667B/en unknown
Also Published As
Publication number | Publication date |
---|---|
GB1477947A (en) | 1977-06-29 |
DE2422591A1 (en) | 1975-11-13 |
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