FR2257011B1 - - Google Patents

Info

Publication number
FR2257011B1
FR2257011B1 FR7442010A FR7442010A FR2257011B1 FR 2257011 B1 FR2257011 B1 FR 2257011B1 FR 7442010 A FR7442010 A FR 7442010A FR 7442010 A FR7442010 A FR 7442010A FR 2257011 B1 FR2257011 B1 FR 2257011B1
Authority
FR
France
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
FR7442010A
Other languages
French (fr)
Other versions
FR2257011A1 (it
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 FR2257011A1 publication Critical patent/FR2257011A1/fr
Application granted granted Critical
Publication of FR2257011B1 publication Critical patent/FR2257011B1/fr
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)
  • Lining And Supports For Tunnels (AREA)
  • Tents Or Canopies (AREA)
FR7442010A 1974-01-03 1974-12-19 Expired FR2257011B1 (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742400136 DE2400136A1 (de) 1974-01-03 1974-01-03 Schildausbaugestell

Publications (2)

Publication Number Publication Date
FR2257011A1 FR2257011A1 (it) 1975-08-01
FR2257011B1 true FR2257011B1 (it) 1982-09-10

Family

ID=5904060

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7442010A Expired FR2257011B1 (it) 1974-01-03 1974-12-19

Country Status (4)

Country Link
BE (1) BE823900A (it)
DE (1) DE2400136A1 (it)
FR (1) FR2257011B1 (it)
GB (1) GB1487702A (it)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2608011B2 (de) * 1976-02-27 1978-09-07 Emka Ingenieurgesellschaft Fuer Bauwerksdurchpressungen Mbh, 2000 Hamburg Vorgefertigter Baukörper, insbes. Tunnelbaukörper
DE2657955C3 (de) * 1976-12-21 1985-08-08 Klöckner-Becorit GmbH, 4620 Castrop-Rauxel Schildausbaugestell
DE2840835C2 (de) * 1978-09-20 1986-03-06 Klöckner-Becorit GmbH, 4620 Castrop-Rauxel Schildausbaugestell für untertägige Strebbetriebe
AT360936B (de) * 1979-02-14 1981-02-10 Voest Alpine Ag Ausbaubock
HU203803B (en) * 1988-02-11 1991-09-30 Gyoergy Szentai Supporting device for supporting mine space
CN105134271B (zh) * 2015-08-04 2017-06-16 山西晋城无烟煤矿业集团有限责任公司 综采工作面两端头过超高段液压支护装置
CN105909291B (zh) * 2016-06-12 2018-03-13 山东鼎安检测技术有限公司 大采高三角形液压支架
CN117722739B (zh) * 2024-02-18 2024-05-03 北京君腾达制冷技术有限公司 一种双制冷冷热风机组

Also Published As

Publication number Publication date
BE823900A (fr) 1975-04-16
GB1487702A (en) 1977-10-05
AU7710075A (en) 1976-07-08
FR2257011A1 (it) 1975-08-01
DE2400136A1 (de) 1975-07-17

Similar Documents

Publication Publication Date Title
FR2257011A1 (it)
AU8476175A (it)
CH569882A5 (it)
CH569576A5 (it)
CH569333A5 (it)
CH569248A5 (it)
CH568516A5 (it)
CH560631A5 (it)
CH1434174A4 (it)
CH1341474A4 (it)
CH1131975A4 (it)
BG27083A3 (it)
BG23005A3 (it)
BG22754A1 (it)
BG22559A1 (it)
BG22429A1 (it)
BG22286A1 (it)
BG22091A1 (it)
BG21820A1 (it)
BG21800A1 (it)
BG21637A1 (it)
BG21560A1 (it)
BG21483A1 (it)
BG21479A1 (it)
BG21445A1 (it)

Legal Events

Date Code Title Description
ST Notification of lapse