CS207558B2 - Safety device for the mine shields - Google Patents

Safety device for the mine shields Download PDF

Info

Publication number
CS207558B2
CS207558B2 CS748364A CS836474A CS207558B2 CS 207558 B2 CS207558 B2 CS 207558B2 CS 748364 A CS748364 A CS 748364A CS 836474 A CS836474 A CS 836474A CS 207558 B2 CS207558 B2 CS 207558B2
Authority
CS
Czechoslovakia
Prior art keywords
hinged lid
safety device
joist
ceiling
control
Prior art date
Application number
CS748364A
Other languages
Czech (cs)
English (en)
Inventor
Karoly Boele
Kalman Nagy
Istvan Aufsatz
Joszef Bohnert
Laszlo Branyi
Zoltan Ilyes
Jozsef Korbuly
Janos Nemeth
Original Assignee
Banyaszati Kutato Intezet
Varpalotai Szenbanyak
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Banyaszati Kutato Intezet, Varpalotai Szenbanyak filed Critical Banyaszati Kutato Intezet
Publication of CS207558B2 publication Critical patent/CS207558B2/cs

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
    • E21D23/06—Special mine caps or special tops of pit-props for permitting step-by-step movement
    • E21D23/063—Retractable cantilever extensions 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)
  • Lining And Supports For Tunnels (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Supports For Plants (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
CS748364A 1973-12-07 1974-12-06 Safety device for the mine shields CS207558B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HUBA3007A HU167711B (fr) 1973-12-07 1973-12-07

Publications (1)

Publication Number Publication Date
CS207558B2 true CS207558B2 (en) 1981-08-31

Family

ID=10993376

Family Applications (1)

Application Number Title Priority Date Filing Date
CS748364A CS207558B2 (en) 1973-12-07 1974-12-06 Safety device for the mine shields

Country Status (9)

Country Link
US (1) US4048803A (fr)
AT (1) AT338198B (fr)
CS (1) CS207558B2 (fr)
DE (1) DE2457867C2 (fr)
FR (1) FR2253915B1 (fr)
GB (1) GB1468987A (fr)
HU (1) HU167711B (fr)
YU (1) YU37217B (fr)
ZA (1) ZA747824B (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2845054C3 (de) * 1978-10-16 1981-09-24 Klöckner-Werke AG, 4100 Duisburg Hangendkappe einer Schreitausbaugestells mit einer ein- und ausfahrbaren Vorpfändkappe
GB2082236B (en) * 1980-08-06 1984-03-07 Dowty Mining Equipment Ltd Mine roof support with cantilever extension on roof plate
DE3107209A1 (de) * 1981-02-26 1982-09-09 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Kappenanstellvorrichtung
GB2196371B (en) * 1986-10-15 1990-05-09 Gullick Dobson Ltd Mine roof supports
GB2197678B (en) * 1986-11-21 1990-04-11 Gullick Dobson Ltd Mine roof supports
GB9004181D0 (en) * 1990-02-23 1990-04-18 Gullick Dobson Ltd Mine roof supports and components therefor
CN102305090A (zh) * 2011-09-29 2012-01-04 郑州四维机电设备制造有限公司 伸缩梁机构
CN102562102B (zh) * 2012-03-23 2014-09-03 卡特彼勒（郑州）有限公司 复合式伸缩梁机构
CN103527235B (zh) * 2013-10-28 2015-09-30 天地科技股份有限公司 地下开采液压支护系统的群组自组织协同控制方法
CN104653211B (zh) * 2013-11-21 2018-05-15 李泽宇 一种液压支架顶梁上用于移架的导轨滑块机构
US10808533B2 (en) * 2018-05-17 2020-10-20 Swanson Industries, Inc. Mining rock deflector apparatus and method
CN113217049B (zh) * 2021-04-23 2024-06-28 山西精专致科技股份有限公司 矿用采煤机辅助维修装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1182188B (de) * 1956-06-05 1964-11-26 Hoesch Ag Vorpfaendeinrichtung
GB882933A (en) * 1957-04-20 1961-11-22 Hoesch Werke Ag Improvements in or relating to mine roof supports
GB924372A (en) * 1959-03-18 1963-04-24 Willy Eggemann Improvements in or relating to roof support elements for mines
FR1303511A (fr) * 1961-07-22 1962-09-14 Mines Domaniales De Potasse Système de rallonges télescopiques à portance hydraulique pour éléments de soutènement en taille
US3216202A (en) * 1962-11-09 1965-11-09 Gullick Ltd Roof supporting means for mines

Also Published As

Publication number Publication date
FR2253915A1 (fr) 1975-07-04
DE2457867C2 (de) 1983-02-10
HU167711B (fr) 1975-12-25
AT338198B (de) 1977-08-10
ATA983374A (de) 1976-12-15
FR2253915B1 (fr) 1981-04-10
DE2457867A1 (de) 1975-06-12
YU323474A (en) 1982-06-18
AU7621374A (en) 1976-06-10
GB1468987A (en) 1977-03-30
YU37217B (en) 1984-08-31
US4048803A (en) 1977-09-20
ZA747824B (en) 1976-01-28

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