PL72431B1 - - Google Patents

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Publication number
PL72431B1
PL72431B1 PL15705072A PL15705072A PL72431B1 PL 72431 B1 PL72431 B1 PL 72431B1 PL 15705072 A PL15705072 A PL 15705072A PL 15705072 A PL15705072 A PL 15705072A PL 72431 B1 PL72431 B1 PL 72431B1
Authority
PL
Poland
Prior art keywords
frame
roadheader
canopy
support
casing
Prior art date
Application number
PL15705072A
Other languages
English (en)
Polish (pl)
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 filed Critical
Publication of PL72431B1 publication Critical patent/PL72431B1/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
    • E21D23/08—Advancing mechanisms
    • 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
    • E21D23/0086—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor in galleries
    • E21D23/0095—Temporary supports at the driving front

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)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Manipulator (AREA)
PL15705072A 1971-08-03 1972-08-01 PL72431B1 (enExample)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712138717 DE2138717C3 (de) 1971-08-03 1971-08-03 Steckenvortriebsmaschine mit provisorischem Ausbau

Publications (1)

Publication Number Publication Date
PL72431B1 true PL72431B1 (enExample) 1974-06-29

Family

ID=5815606

Family Applications (1)

Application Number Title Priority Date Filing Date
PL15705072A PL72431B1 (enExample) 1971-08-03 1972-08-01

Country Status (4)

Country Link
DE (1) DE2138717C3 (enExample)
FR (1) FR2148013B1 (enExample)
GB (1) GB1391365A (enExample)
PL (1) PL72431B1 (enExample)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2406751C2 (de) * 1974-02-13 1983-03-24 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Hydraulischer Grubenausbau
AT339236B (de) * 1975-10-29 1977-10-10 Voest Ag Vorrichtung zum verspannen einer fahrbaren schrammaschine
DE2840919C3 (de) * 1977-10-13 1982-02-11 Voest - Alpine AG, 1011 Wien An einer Streckenvortriebsmaschine angeordnete Vorrichtung zum Einbringen von Ausbaurahmen eines provisorischen Streckenausbaus
CN108222995B (zh) * 2017-12-29 2019-10-29 临沂矿业集团有限责任公司 一种支护推进安装保护设备
CN112814674A (zh) * 2021-02-25 2021-05-18 天地上海采掘装备科技有限公司 悬机身采煤机摇臂辅助装载机构和悬机身采煤机

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2036490A (en) * 1934-05-29 1936-04-07 Stewarts & Lloyds Ltd Support for mines and the like
FR1197818A (fr) * 1957-01-12 1959-12-03 Oesterreichisches Schacht U Ti Machine destinée au percement de galeries
FR1201493A (fr) * 1957-02-04 1959-12-30 Oesterreichisches Schacht U Ti Machine destinée au percement de galeries
FR1505728A (fr) * 1965-12-15 1967-12-15 Coal Industry Patents Ltd Support du toit des galeries de mines

Also Published As

Publication number Publication date
DE2138717A1 (de) 1973-02-15
DE2138717C3 (de) 1981-06-25
FR2148013B1 (enExample) 1976-08-06
FR2148013A1 (enExample) 1973-03-16
GB1391365A (en) 1975-04-23
DE2138717B2 (de) 1980-07-10

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