GB1451373A - Longwall roof support unit of the shield type - Google Patents

Longwall roof support unit of the shield type

Info

Publication number
GB1451373A
GB1451373A GB4627773A GB4627773A GB1451373A GB 1451373 A GB1451373 A GB 1451373A GB 4627773 A GB4627773 A GB 4627773A GB 4627773 A GB4627773 A GB 4627773A GB 1451373 A GB1451373 A GB 1451373A
Authority
GB
United Kingdom
Prior art keywords
support unit
roof support
plate
shield type
shield
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
GB4627773A
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.)
Bochumer Eisenhuette Heintzmann GmbH and Co KG
Original Assignee
Bochumer Eisenhuette Heintzmann GmbH and Co KG
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 Bochumer Eisenhuette Heintzmann GmbH and Co KG filed Critical Bochumer Eisenhuette Heintzmann GmbH and Co KG
Publication of GB1451373A publication Critical patent/GB1451373A/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
    • E21D23/03—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
    • 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)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Building Environments (AREA)

Abstract

1451373 Mine roof supports BOCHUMER EISENHUTTE HEINTZMANN & CO 3 Oct 1973 [16 Oct 1972] 46277/73 Heading E1P A mine roof support unit comprises an arcuate coving shield 7 articulated to a sloper and to a roof plate, the shield being supported by one or more struts 10 and having means 18 to close the gap 15 between adjacent units in a longwall system. The means 18 consists of side plates 14, 14a which are re-inforced as by plates 20, 20a; the plate 14 being fixed and the plate 14a being loaded as by a spring 17 or a hydraulic jack.
GB4627773A 1972-10-16 1973-10-03 Longwall roof support unit of the shield type Expired GB1451373A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722250599 DE2250599B1 (en) 1972-10-16 1972-10-16 SHIELD LIKE STRUCTURE UNIT

Publications (1)

Publication Number Publication Date
GB1451373A true GB1451373A (en) 1976-09-29

Family

ID=5859138

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4627773A Expired GB1451373A (en) 1972-10-16 1973-10-03 Longwall roof support unit of the shield type

Country Status (5)

Country Link
BE (1) BE805700A (en)
DE (1) DE2250599B1 (en)
FR (1) FR2203020B3 (en)
GB (1) GB1451373A (en)
PL (1) PL91072B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113756853A (en) * 2021-07-31 2021-12-07 山东省煤田地质规划勘察研究院 Deep well soft rock stratum rock burst protector
CN117090615A (en) * 2023-10-16 2023-11-21 中核二十五建设有限公司 Supporting equipment for mine construction

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113756853A (en) * 2021-07-31 2021-12-07 山东省煤田地质规划勘察研究院 Deep well soft rock stratum rock burst protector
CN113756853B (en) * 2021-07-31 2024-05-10 山东省煤田地质规划勘察研究院 Deep well soft rock stratum rock burst protection device
CN117090615A (en) * 2023-10-16 2023-11-21 中核二十五建设有限公司 Supporting equipment for mine construction
CN117090615B (en) * 2023-10-16 2023-12-29 中核二十五建设有限公司 Supporting equipment for mine construction

Also Published As

Publication number Publication date
FR2203020A1 (en) 1974-05-10
BE805700A (en) 1974-04-05
DE2250599A1 (en) 1974-04-11
FR2203020B3 (en) 1976-09-03
DE2250599B1 (en) 1974-04-11
PL91072B1 (en) 1977-02-28

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19931002