ES362970A1 - Mining system and apparatus - Google Patents

Mining system and apparatus

Info

Publication number
ES362970A1
ES362970A1 ES362970A ES362970A ES362970A1 ES 362970 A1 ES362970 A1 ES 362970A1 ES 362970 A ES362970 A ES 362970A ES 362970 A ES362970 A ES 362970A ES 362970 A1 ES362970 A1 ES 362970A1
Authority
ES
Spain
Prior art keywords
structures
jacks
gallery
held
moving
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
ES362970A
Other languages
Spanish (es)
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.)
Dobson Ltd W E & F
WE&F Dobson Ltd
Original Assignee
Dobson Ltd W E & F
WE&F Dobson Ltd
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 Dobson Ltd W E & F, WE&F Dobson Ltd filed Critical Dobson Ltd W E & F
Publication of ES362970A1 publication Critical patent/ES362970A1/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
    • E21D23/0056—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor with individual advancing shifting devices

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)
  • Working Measures On Existing Buildindgs (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

Mineral is removed from a face F of a mineral seam by successive traverses of a cutting machine 10 which thereby forms a gallery in which is disposed side-support structures 11a, 11b each of which has vertically spaced transverse jacks 14 for engaging the sides of the gallery, the structures 11a, 11b being moved forward alternately, step-by-step, by contracting the jacks of one of the structures and moving it forwardly while the other structure is held then moving the other structure while the first said structure is held. The structures 11 a, 11b are suspended from carriages 12a, 12b and moved relative to each other by jacks 17. The structure 11b has protective shields 18. More than two side-support structures may be provided.
ES362970A 1968-03-09 1969-01-16 Mining system and apparatus Expired ES362970A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1162368A GB1247152A (en) 1968-03-09 1968-03-09 Mining system and apparatus

Publications (1)

Publication Number Publication Date
ES362970A1 true ES362970A1 (en) 1971-04-01

Family

ID=9989678

Family Applications (1)

Application Number Title Priority Date Filing Date
ES362970A Expired ES362970A1 (en) 1968-03-09 1969-01-16 Mining system and apparatus

Country Status (2)

Country Link
ES (1) ES362970A1 (en)
GB (1) GB1247152A (en)

Also Published As

Publication number Publication date
GB1247152A (en) 1971-09-22

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