GB1418432A - Mine roof support - Google Patents

Mine roof support

Info

Publication number
GB1418432A
GB1418432A GB423374A GB423374A GB1418432A GB 1418432 A GB1418432 A GB 1418432A GB 423374 A GB423374 A GB 423374A GB 423374 A GB423374 A GB 423374A GB 1418432 A GB1418432 A GB 1418432A
Authority
GB
United Kingdom
Prior art keywords
mine roof
shield
roof support
support
sections
Prior art date
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.)
Expired
Application number
GB423374A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Becorit Grubenausbau GmbH
Original Assignee
Becorit Grubenausbau GmbH
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 Becorit Grubenausbau GmbH filed Critical Becorit Grubenausbau GmbH
Publication of GB1418432A publication Critical patent/GB1418432A/en
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)

Abstract

1418432 Mine roof supports BECORIT GRUBENAUSBAU GmbH 30 Jan 1974 [27 Feb 1973] 04233/74 Heading E1P In a mine roof support comprising a goafside screening shield consisting of two sections hinged to-gether, the shield is movable laterally relative to the remainder of the support by being connected thereto by hinge pins 8. The shield sections are interconnected by pivotal links 10 and the upper section is connected to the roof bar by a chain 9.
GB423374A 1973-02-27 1974-01-30 Mine roof support Expired GB1418432A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2309670A DE2309670C2 (en) 1973-02-27 1973-02-27 Support frame with offset shielding for longwall mining in underground mining operations

Publications (1)

Publication Number Publication Date
GB1418432A true GB1418432A (en) 1975-12-17

Family

ID=5873203

Family Applications (1)

Application Number Title Priority Date Filing Date
GB423374A Expired GB1418432A (en) 1973-02-27 1974-01-30 Mine roof support

Country Status (7)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2136040A (en) * 1983-03-08 1984-09-12 Dobson Park Ind Pivotal linkage of a mine roof support

Families Citing this family (6)

* 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 (en) * 1978-11-18 1980-05-29 Fletcher Sutcliffe Wild Ltd Roof support for longwall mining - has permanently loaded force applicator acting on roof beams and restoring displaced chock legs after predetermined pressure drop
CN104213929A (en) * 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 Large-inclination-angle coal bed fully-mechanized mining bracket and support method
CN105065046B (en) * 2015-07-13 2017-07-18 辽宁工程技术大学 Flexible protective device between a kind of adjacent frame of hydraulic support
CN106761870A (en) * 2016-11-19 2017-05-31 无锡市洗选设备厂 Sand washer bracket component
CN106499425A (en) * 2016-11-19 2017-03-15 无锡市洗选设备厂 The hydraulic prop component of sand washer

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 (en) * 1971-10-02 1973-01-15 Gewerk Eisenhuette Westfalia SHIELD SUPPORT FRAMES

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2136040A (en) * 1983-03-08 1984-09-12 Dobson Park Ind Pivotal linkage of a mine roof support

Also Published As

Publication number Publication date
DE2309670C2 (en) 1974-09-05
JPS547487B2 (en) 1979-04-07
PL90941B1 (en) 1977-02-28
DE2309670A1 (en) 1974-02-14
DE2309670B1 (en) 1974-02-14
US3908389A (en) 1975-09-30
JPS49117302A (en) 1974-11-09
ZA74423B (en) 1974-11-27
CS202030B2 (en) 1980-12-31

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee