ZA77426B - Mine roof support - Google Patents
Mine roof supportInfo
- Publication number
- ZA77426B ZA77426B ZA00770426A ZA77426A ZA77426B ZA 77426 B ZA77426 B ZA 77426B ZA 00770426 A ZA00770426 A ZA 00770426A ZA 77426 A ZA77426 A ZA 77426A ZA 77426 B ZA77426 B ZA 77426B
- Authority
- ZA
- South Africa
- Prior art keywords
- roof support
- mine roof
- mine
- support
- roof
- 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
- E21D23/03—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
- E21D23/0004—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
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)
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
- Building Environments (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4687/76A GB1568967A (en) | 1976-02-06 | 1976-02-06 | Mine roof support |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA77426B true ZA77426B (en) | 1978-03-29 |
Family
ID=9781913
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA00770426A ZA77426B (en) | 1976-02-06 | 1977-01-25 | Mine roof support |
Country Status (7)
Country | Link |
---|---|
US (1) | US4126002A (de) |
AR (1) | AR214731A1 (de) |
AU (1) | AU507338B2 (de) |
DE (1) | DE2704468C3 (de) |
GB (1) | GB1568967A (de) |
MX (1) | MX143669A (de) |
ZA (1) | ZA77426B (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3131607C2 (de) * | 1980-08-16 | 1986-12-11 | Dowty Mining Equipment Ltd., Ashchurch, Tewkesbury,Gloucestershire | Schildausbaugestell mit einer starr ausgebildeten Sohlkonstruktion |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7237859U (de) * | 1975-09-18 | Bochumer Eisenhuette Heintzmann & Co | Schildausbaueinheit | |
DE1937308C3 (de) * | 1969-07-23 | 1983-12-15 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Schildausbauelement |
HU162717B (de) * | 1971-03-05 | 1973-04-28 | ||
DE2119246A1 (de) * | 1971-04-21 | 1972-11-02 | Gewerkschaft Eisenhütte Westfalia, 4628 Altlünen | Bruchabweiser, insbesondere für einen schreitenden Ausbau für Untertagebetriebe |
DE2325480C2 (de) * | 1973-05-19 | 1974-12-05 | Becorit Grubenausbau Gmbh, 4350 Recklinghausen | Ausbaugestell für den Strebausbau im untertägigen Grubenbetrieb |
GB1512001A (en) * | 1974-01-19 | 1978-05-24 | Dowty Mining Equipment Ltd | Mine roof support |
AT337639B (de) * | 1975-09-26 | 1977-07-11 | Voest Alpine Montan Ag | Schildausbau |
-
1976
- 1976-02-06 GB GB4687/76A patent/GB1568967A/en not_active Expired
-
1977
- 1977-01-25 ZA ZA00770426A patent/ZA77426B/xx unknown
- 1977-01-27 AU AU21698/77A patent/AU507338B2/en not_active Expired
- 1977-01-28 MX MX167865A patent/MX143669A/es unknown
- 1977-02-03 DE DE2704468A patent/DE2704468C3/de not_active Expired
- 1977-02-03 AR AR266432A patent/AR214731A1/es active
- 1977-02-04 US US05/765,856 patent/US4126002A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
AU507338B2 (en) | 1980-02-14 |
GB1568967A (en) | 1980-06-11 |
AU2169877A (en) | 1978-08-03 |
MX143669A (es) | 1981-06-22 |
DE2704468B2 (de) | 1980-08-28 |
DE2704468A1 (de) | 1977-08-11 |
DE2704468C3 (de) | 1981-03-26 |
US4126002A (en) | 1978-11-21 |
AR214731A1 (es) | 1979-07-31 |
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