GB1124715A - Travelling longwall supporting assembly - Google Patents

Travelling longwall supporting assembly

Info

Publication number
GB1124715A
GB1124715A GB8364/67A GB836467A GB1124715A GB 1124715 A GB1124715 A GB 1124715A GB 8364/67 A GB8364/67 A GB 8364/67A GB 836467 A GB836467 A GB 836467A GB 1124715 A GB1124715 A GB 1124715A
Authority
GB
United Kingdom
Prior art keywords
travelling
longwall
supporting assembly
advancing
jack
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
GB8364/67A
Other languages
English (en)
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.)
Gewerkschaft Eisenhutte Westfalia GmbH
Original Assignee
Gewerkschaft Eisenhutte Westfalia 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 Gewerkschaft Eisenhutte Westfalia GmbH filed Critical Gewerkschaft Eisenhutte Westfalia GmbH
Publication of GB1124715A publication Critical patent/GB1124715A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D17/00—Caps for supporting mine roofs
    • E21D17/02—Cantilever extension or similar protecting devices
    • E21D17/0206—Hydraulically operated extension devices
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C27/00—Machines which completely free the mineral from the seam
    • E21C27/01—Machines which completely free the mineral from the seam specially adapted for removing overhanging coal
    • 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)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
GB8364/67A 1966-03-01 1967-02-22 Travelling longwall supporting assembly Expired GB1124715A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG0046170 1966-03-01

Publications (1)

Publication Number Publication Date
GB1124715A true GB1124715A (en) 1968-08-21

Family

ID=7127942

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8364/67A Expired GB1124715A (en) 1966-03-01 1967-02-22 Travelling longwall supporting assembly

Country Status (4)

Country Link
US (1) US3441317A (fr)
FR (1) FR1510670A (fr)
GB (1) GB1124715A (fr)
NL (1) NL6700923A (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1494284A (en) * 1975-07-19 1977-12-07 Gullick Dobson Ltd Self-advancing mine roof supports
DE3631069A1 (de) * 1986-09-12 1988-03-24 Bochumer Eisen Heintzmann Verfahren zum loesen der oberkohle
DE3631079A1 (de) * 1986-09-12 1988-03-24 Bochumer Eisen Heintzmann Ruettelsteuerung fuer einen hydraulikzylinder
NO160936C (no) * 1987-02-24 1989-06-21 Arne Martin Lerstoel Anordning ved byggekonstruksjon.
RU2451183C1 (ru) * 2010-11-29 2012-05-20 Государственное образовательное учреждение высшего профессионального образования "Санкт-Петербургский государственный горный институт имени Г.В. Плеханова (технический университет)" Скалывающий козырек секции механизированной крепи

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2716025A (en) * 1951-07-17 1955-08-23 Paul V Malloy Method and mining apparatus with movable roof supports

Also Published As

Publication number Publication date
US3441317A (en) 1969-04-29
FR1510670A (fr) 1968-01-19
NL6700923A (fr) 1967-09-04

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