PL85831B1 - - Google Patents
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- Publication number
- PL85831B1 PL85831B1 PL1973162656A PL16265673A PL85831B1 PL 85831 B1 PL85831 B1 PL 85831B1 PL 1973162656 A PL1973162656 A PL 1973162656A PL 16265673 A PL16265673 A PL 16265673A PL 85831 B1 PL85831 B1 PL 85831B1
- Authority
- PL
- Poland
- Prior art keywords
- conveyor
- thrust
- face
- guided
- casing
- Prior art date
Links
- 238000000034 method Methods 0.000 claims description 7
- 238000005065 mining Methods 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 2
- 239000011707 mineral Substances 0.000 claims description 2
- 241000289669 Erinaceus europaeus Species 0.000 claims 1
- 239000000243 solution Substances 0.000 description 3
- 239000002817 coal dust Substances 0.000 description 2
- 239000012267 brine Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 210000000278 spinal cord Anatomy 0.000 description 1
- 230000008961 swelling Effects 0.000 description 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
- 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
- E21D23/0445—Extensions of the base member supporting the conveyor
-
- 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
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)
- Excavating Of Shafts Or Tunnels (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2224438A DE2224438C2 (de) | 1972-05-19 | 1972-05-19 | Schildausbau für Abbaustreben im untertä'gigen Grubenbetrieb |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL85831B1 true PL85831B1 (US20030199744A1-20031023-C00003.png) | 1976-05-31 |
Family
ID=5845325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL1973162656A PL85831B1 (US20030199744A1-20031023-C00003.png) | 1972-05-19 | 1973-05-18 |
Country Status (7)
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2522111B2 (de) * | 1975-05-17 | 1978-10-12 | Bochumer Eisenhuette Heintzmann Gmbh & Co, 4630 Bochum | Schildausbaugespann mit Führungsvorrichtung |
| DE2522117A1 (de) * | 1975-05-17 | 1976-12-02 | Bochumer Eisen Heintzmann | Liegendschwellenanordnung fuer ein schildausbaugestell |
| DE2554554C3 (de) * | 1975-12-04 | 1984-05-24 | Klöckner-Becorit GmbH, 4620 Castrop-Rauxel | Schildausbaueinheit für untertägige Strebbetriebe |
| JPS5329202A (en) * | 1976-08-31 | 1978-03-18 | Taiheiyo Eng | Coal extracting method of long wall coal facing |
| AU554140B2 (en) * | 1980-07-02 | 1986-08-07 | Dana Corporation | Thermally insulating coating on piston head |
| CN102472102B (zh) | 2009-07-10 | 2015-03-11 | 乔伊·姆·特拉华公司 | 长壁开采顶板支撑件 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB965172A (en) * | 1962-04-06 | 1964-07-29 | Gullick Ltd | Improvements in or relating to roof supports for mines and the like |
| DE1219892B (de) * | 1964-11-14 | 1966-06-30 | Gewerk Eisenhuette Westfalia | Steuerung eines Kohlenhobels |
| US3402015A (en) * | 1965-10-14 | 1968-09-17 | Universal Oil Prod Co | Multiple stage treatment of a noxious stream with cyclic high quantities of nitrogen oxides |
| GB1160513A (en) * | 1966-03-04 | 1969-08-06 | Karl Maria Groetschel | Improvements relating to Roof Supports for Mine Workings. |
| DE1277789B (de) * | 1967-01-13 | 1968-09-19 | Gewerk Eisenhuette Westfalia | Hydraulisch wanderndes Ausbaugestell |
| US3431738A (en) * | 1967-06-06 | 1969-03-11 | Karl Maria Groetschel | Roof supporting systems for mine workings |
| GB1259785A (en) * | 1968-04-26 | 1972-01-12 | Gewerk Eisenhuette Westfalia | A mineral mining installation |
| US3570255A (en) * | 1968-06-10 | 1971-03-16 | Mastabar Mining Equipment Co L | Mine roof support |
| FR2037349A6 (US20030199744A1-20031023-C00003.png) * | 1969-02-20 | 1970-12-31 | Gewerk Eisenhuette Westfalia |
-
1972
- 1972-05-19 DE DE2224438A patent/DE2224438C2/de not_active Expired
-
1973
- 1973-05-10 BE BE130960A patent/BE799353A/xx unknown
- 1973-05-10 GB GB2243973A patent/GB1424276A/en not_active Expired
- 1973-05-16 AU AU55775/73A patent/AU474951B2/en not_active Expired
- 1973-05-18 PL PL1973162656A patent/PL85831B1/pl unknown
- 1973-05-18 US US361623A patent/US3896626A/en not_active Expired - Lifetime
- 1973-05-18 FR FR7318132A patent/FR2185748B3/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE799353A (fr) | 1973-11-12 |
| FR2185748A1 (US20030199744A1-20031023-C00003.png) | 1974-01-04 |
| FR2185748B3 (US20030199744A1-20031023-C00003.png) | 1976-05-07 |
| US3896626A (en) | 1975-07-29 |
| DE2224438A1 (US20030199744A1-20031023-C00003.png) | 1973-08-09 |
| AU474951B2 (en) | 1976-08-05 |
| GB1424276A (en) | 1976-02-11 |
| DE2224438B1 (de) | 1973-08-09 |
| AU5577573A (en) | 1974-11-21 |
| DE2224438C2 (de) | 1975-06-05 |
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