ZA774601B - Improvements relating to methods of and apparatus for applying roof mats to mine workings - Google Patents
Improvements relating to methods of and apparatus for applying roof mats to mine workingsInfo
- Publication number
- ZA774601B ZA774601B ZA00774601A ZA774601A ZA774601B ZA 774601 B ZA774601 B ZA 774601B ZA 00774601 A ZA00774601 A ZA 00774601A ZA 774601 A ZA774601 A ZA 774601A ZA 774601 B ZA774601 B ZA 774601B
- Authority
- ZA
- South Africa
- Prior art keywords
- methods
- improvements relating
- mine workings
- mats
- applying roof
- Prior art date
Links
- 230000003245 working effect Effects 0.000 title 1
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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D19/00—Provisional protective covers for working space
- E21D19/02—Provisional protective covers for working space for use in longwall working
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)
- Mechanical Engineering (AREA)
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
- Tents Or Canopies (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2634557A DE2634557C2 (en) | 1976-07-31 | 1976-07-31 | Method and device for producing a protective covering covering the entire expansion of a dismantling strut |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA774601B true ZA774601B (en) | 1978-06-28 |
Family
ID=5984440
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA00774601A ZA774601B (en) | 1976-07-31 | 1977-07-29 | Improvements relating to methods of and apparatus for applying roof mats to mine workings |
Country Status (5)
Country | Link |
---|---|
AT (1) | AT354962B (en) |
DE (1) | DE2634557C2 (en) |
FR (1) | FR2360747A1 (en) |
GB (2) | GB1592194A (en) |
ZA (1) | ZA774601B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2936206C2 (en) * | 1979-09-07 | 1981-09-24 | Groetschel, Karl Maria, Dipl.-Ing., 8000 München | Method and device for the production of a protective covering covering the entire expansion of a strut |
DE2945082C2 (en) * | 1979-11-08 | 1981-10-22 | Groetschel, Karl Maria, Dipl.-Ing., 8000 München | Mat laying device |
DE3530469A1 (en) * | 1985-08-27 | 1987-03-05 | Niederberg Chemie | Nocturnal landfill seals with mining mining |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1281978B (en) * | 1965-04-21 | 1968-11-07 | Karl Maria Groetschel Dipl Ing | Procedure for securing large areas of the hanging slope area exposed in the course of the cutting progress in mining operations |
US3902324A (en) * | 1973-06-25 | 1975-09-02 | Us Interior | Mobile roof supporting shield |
DE2426220A1 (en) * | 1974-05-29 | 1975-12-18 | Dieter Ing Grad Poller | Dust suppression in fully mechanised coalfaces - film lagging drawn off roller and bonded to roof with pressure roller |
DE2442177A1 (en) * | 1974-09-03 | 1976-03-11 | Roesler Draht Kg | PROCESS AND DEVICE TO PREVENT THE DEVELOPMENT OF DUST, IN PARTICULAR ROCK DUST, FROM THE HANGING AND BREAKAGE DURING THE EXTENSION OF SHIELDS OR TREADS, PRIORLY COAL MINING |
DE2541534A1 (en) * | 1975-09-18 | 1977-03-31 | Karl Maria Dipl Ing Groetschel | Mine rise heading protection - has lagging mat at machine front drawn from stock and deflected back as machine advances |
-
1976
- 1976-07-31 DE DE2634557A patent/DE2634557C2/en not_active Expired
-
1977
- 1977-07-13 AT AT505477A patent/AT354962B/en not_active IP Right Cessation
- 1977-07-29 ZA ZA00774601A patent/ZA774601B/en unknown
- 1977-08-01 GB GB12190/80A patent/GB1592194A/en not_active Expired
- 1977-08-01 FR FR7723665A patent/FR2360747A1/en active Granted
- 1977-08-01 GB GB44382/79A patent/GB1595370A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2634557C2 (en) | 1979-06-13 |
DE2634557B1 (en) | 1977-09-29 |
FR2360747B1 (en) | 1983-08-26 |
GB1592194A (en) | 1981-07-01 |
AT354962B (en) | 1980-02-11 |
ATA505477A (en) | 1979-07-15 |
FR2360747A1 (en) | 1978-03-03 |
GB1595370A (en) | 1981-08-12 |
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