HU190935B - Mine supporting device - Google Patents
Mine supporting device Download PDFInfo
- Publication number
- HU190935B HU190935B HU274684A HU274684A HU190935B HU 190935 B HU190935 B HU 190935B HU 274684 A HU274684 A HU 274684A HU 274684 A HU274684 A HU 274684A HU 190935 B HU190935 B HU 190935B
- Authority
- HU
- Hungary
- Prior art keywords
- roof
- hinge
- bracket
- arm
- priority
- Prior art date
Links
- 238000005065 mining Methods 0.000 claims abstract description 5
- 238000000605 extraction Methods 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 239000003351 stiffener Substances 0.000 claims 3
- 238000006073 displacement reaction Methods 0.000 abstract description 4
- 239000011435 rock Substances 0.000 abstract description 3
- 230000001681 protective effect Effects 0.000 abstract 2
- 238000010276 construction Methods 0.000 abstract 1
- 210000000707 wrist Anatomy 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 210000001217 buttock Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000004575 stone Substances 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
-
- 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
- E21D23/0043—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 two or more rows 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)
- Fluid-Damping Devices (AREA)
- Helmets And Other Head Coverings (AREA)
- Actuator (AREA)
- Earth Drilling (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL24306583A PL139781B1 (en) | 1983-07-16 | 1983-07-16 | Shield-type roof supports |
PL24449383A PL139959B1 (en) | 1983-11-10 | 1983-11-10 | Shield-type roof support |
PL24453283A PL140157B1 (en) | 1983-11-11 | 1983-11-11 | Lemniscate type roof support |
PL24563684A PL142149B1 (en) | 1984-01-05 | 1984-01-05 | Hydraulic system for shielded type roof supports |
Publications (2)
Publication Number | Publication Date |
---|---|
HUT37970A HUT37970A (en) | 1986-03-28 |
HU190935B true HU190935B (en) | 1986-12-28 |
Family
ID=27484418
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HU274684A HU190935B (en) | 1983-07-16 | 1984-07-13 | Mine supporting device |
Country Status (4)
Country | Link |
---|---|
CS (1) | CS543784A2 (de) |
DE (2) | DE3426179A1 (de) |
HU (1) | HU190935B (de) |
YU (1) | YU122684A (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020068850A1 (en) | 2018-09-24 | 2020-04-02 | Joy Global Underground Mining Llc | Roof support including extendable links |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2507263C2 (de) * | 1975-02-20 | 1984-09-13 | Johannes 4300 Essen Winkler | Schildausbau mit Stabilisierungseinrichtung |
DE2605068C3 (de) * | 1976-02-10 | 1978-12-14 | Thyssen Industrie Ag, 4300 Essen | Kappen- und Bruchschildkonstruktion für ein Schildausbaugestell |
DE2721381C3 (de) * | 1977-05-12 | 1986-03-27 | Klöckner-Becorit GmbH, 4620 Castrop-Rauxel | Vorrichtung zur Stabilisierung einer hydraulischen Ausbaueinheit |
DE2750852B1 (de) * | 1977-11-14 | 1979-03-29 | Hemscheidt Maschf Hermann | Vorrichtung zum Stabilisieren der Hangendkappe eines hydraulischen Schreitausbaugestells |
DE2743590A1 (de) * | 1977-09-28 | 1979-04-05 | Kloeckner Werke Ag | Ausbaugestell |
US4333694A (en) * | 1980-11-18 | 1982-06-08 | Textron Inc. | Antifriction bearing with removable seal means |
FR2540932B3 (fr) * | 1983-02-16 | 1985-12-13 | Bennes Marrel | Pile de soutenement marchant, notamment pour les mines souterraines |
-
1984
- 1984-07-13 YU YU122684A patent/YU122684A/xx unknown
- 1984-07-13 HU HU274684A patent/HU190935B/hu unknown
- 1984-07-13 CS CS845437A patent/CS543784A2/cs unknown
- 1984-07-16 DE DE19843426179 patent/DE3426179A1/de active Granted
- 1984-07-16 DE DE19843448126 patent/DE3448126C2/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
HUT37970A (en) | 1986-03-28 |
DE3426179C2 (de) | 1988-06-01 |
DE3448126C2 (en) | 1988-10-13 |
DE3426179A1 (de) | 1985-01-31 |
YU122684A (en) | 1988-06-30 |
CS543784A2 (en) | 1991-07-16 |
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