PL81261B1 - - Google Patents

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Publication number
PL81261B1
PL81261B1 PL14030570A PL14030570A PL81261B1 PL 81261 B1 PL81261 B1 PL 81261B1 PL 14030570 A PL14030570 A PL 14030570A PL 14030570 A PL14030570 A PL 14030570A PL 81261 B1 PL81261 B1 PL 81261B1
Authority
PL
Poland
Prior art keywords
bed
beds
roof
discs
wall
Prior art date
Application number
PL14030570A
Other languages
English (en)
Polish (pl)
Original Assignee
Banyaszati Kutato Intezet
Orszagos Banyagepgyarto Vallalat
Varpalotai Szenbanyak
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 Banyaszati Kutato Intezet, Orszagos Banyagepgyarto Vallalat, Varpalotai Szenbanyak filed Critical Banyaszati Kutato Intezet
Publication of PL81261B1 publication Critical patent/PL81261B1/pl

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
    • 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

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)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Structure Of Belt Conveyors (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
PL14030570A 1969-04-29 1970-04-28 PL81261B1 (en, 2012)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HUBA002203 1969-04-29

Publications (1)

Publication Number Publication Date
PL81261B1 true PL81261B1 (en, 2012) 1975-08-30

Family

ID=10993315

Family Applications (1)

Application Number Title Priority Date Filing Date
PL14030570A PL81261B1 (en, 2012) 1969-04-29 1970-04-28

Country Status (7)

Country Link
BE (1) BE749748A (en, 2012)
ES (1) ES378039A1 (en, 2012)
FR (1) FR2040387A1 (en, 2012)
GB (1) GB1299216A (en, 2012)
PL (1) PL81261B1 (en, 2012)
RO (1) RO65392A (en, 2012)
YU (1) YU34599B (en, 2012)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE789390A (fr) * 1971-10-02 1973-01-15 Gewerk Eisenhuette Westfalia Chassis de soutenement a boucliers
CN106285750A (zh) * 2016-08-30 2017-01-04 高净净 一种可直行、可转弯移架的改进结构和使用方法
CN108468560B (zh) * 2018-05-30 2024-03-26 西安科技大学 一种急倾斜煤层伪俯斜长壁z字形支架开采装置及方法
CN110644987B (zh) * 2019-08-15 2025-06-10 天地科技股份有限公司上海分公司 采煤机防堆料结构和带有防堆料结构的采煤机
CN113464188A (zh) * 2021-08-20 2021-10-01 新汶矿业集团有限责任公司孙村煤矿 一种煤矿巷道用支撑装置及其实现方法
CN116291655B (zh) * 2023-05-22 2023-08-04 山西中煤东坡煤业有限公司 一种煤矿巷道支护设备

Also Published As

Publication number Publication date
YU109070A (en) 1979-04-30
YU34599B (en) 1979-10-31
DE1958322A1 (de) 1970-11-12
RO65392A (fr) 1979-07-15
BE749748A (fr) 1970-10-01
GB1299216A (en) 1972-12-13
DE1958322B2 (de) 1977-04-07
ES378039A1 (es) 1973-01-16
FR2040387A1 (en, 2012) 1971-01-22

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