JPS49117302A - - Google Patents

Info

Publication number
JPS49117302A
JPS49117302A JP49021301A JP2130174A JPS49117302A JP S49117302 A JPS49117302 A JP S49117302A JP 49021301 A JP49021301 A JP 49021301A JP 2130174 A JP2130174 A JP 2130174A JP S49117302 A JPS49117302 A JP S49117302A
Authority
JP
Japan
Legal status (The legal status 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 status listed.)
Granted
Application number
JP49021301A
Other versions
JPS547487B2 (ja
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 filed Critical
Publication of JPS49117302A publication Critical patent/JPS49117302A/ja
Publication of JPS547487B2 publication Critical patent/JPS547487B2/ja
Expired legal-status Critical Current

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
    • E21D23/0043—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
    • 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

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)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Lining And Supports For Tunnels (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Tents Or Canopies (AREA)
  • Error Detection And Correction (AREA)
JP2130174A 1973-02-27 1974-02-22 Expired JPS547487B2 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2309670A DE2309670C2 (de) 1973-02-27 1973-02-27 Mit einer Versatzabschirmung versehenes Ausbaugestell für den Strebausbau im untertägigen Grubenbetrieb

Publications (2)

Publication Number Publication Date
JPS49117302A true JPS49117302A (ja) 1974-11-09
JPS547487B2 JPS547487B2 (ja) 1979-04-07

Family

ID=5873203

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2130174A Expired JPS547487B2 (ja) 1973-02-27 1974-02-22

Country Status (7)

Country Link
US (1) US3908389A (ja)
JP (1) JPS547487B2 (ja)
CS (1) CS202030B2 (ja)
DE (1) DE2309670C2 (ja)
GB (1) GB1418432A (ja)
PL (1) PL90941B1 (ja)
ZA (1) ZA74423B (ja)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1516637A (en) * 1974-11-23 1978-07-05 Gullick Dobson Ltd Mine roof supports
DE2850073A1 (de) * 1978-11-18 1980-05-29 Fletcher Sutcliffe Wild Ltd Grubenausbau, insbesondere strebausbau
GB2136040B (en) * 1983-03-08 1986-06-11 Dobson Park Ind Pivotal linkage of a mine roof support
CN104213929A (zh) * 2014-08-21 2014-12-17 四川省华蓥山煤业股份有限公司李子垭南煤矿 一种大倾角煤层综采支架及支护方法
CN105065046B (zh) * 2015-07-13 2017-07-18 辽宁工程技术大学 一种液压支架邻架间柔性防护装置
CN106761870A (zh) * 2016-11-19 2017-05-31 无锡市洗选设备厂 洗砂机支架组件
CN106499425A (zh) * 2016-11-19 2017-03-15 无锡市洗选设备厂 洗砂机的液压支护组件

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1036663A (en) * 1964-04-03 1966-07-20 Gullick Ltd Improvements in or relating to mine roof and like supports
GB1124665A (en) * 1966-04-29 1968-08-21 Gullick Ltd Improvements in or relating to mine roof supports
BE789390A (fr) * 1971-10-02 1973-01-15 Gewerk Eisenhuette Westfalia Chassis de soutenement a boucliers

Also Published As

Publication number Publication date
GB1418432A (en) 1975-12-17
CS202030B2 (en) 1980-12-31
ZA74423B (en) 1974-11-27
US3908389A (en) 1975-09-30
JPS547487B2 (ja) 1979-04-07
DE2309670B1 (de) 1974-02-14
PL90941B1 (ja) 1977-02-28
DE2309670A1 (ja) 1974-02-14
DE2309670C2 (de) 1974-09-05

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