PL87733B1 - - Google Patents

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Publication number
PL87733B1
PL87733B1 PL16559873A PL16559873A PL87733B1 PL 87733 B1 PL87733 B1 PL 87733B1 PL 16559873 A PL16559873 A PL 16559873A PL 16559873 A PL16559873 A PL 16559873A PL 87733 B1 PL87733 B1 PL 87733B1
Authority
PL
Poland
Prior art keywords
boom
portal
transverse
girders
transverse girders
Prior art date
Application number
PL16559873A
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
Priority claimed from DE19722248785 external-priority patent/DE2248785C3/de
Application filed filed Critical
Publication of PL87733B1 publication Critical patent/PL87733B1/pl

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C27/00—Machines which completely free the mineral from the seam
    • E21C27/20—Mineral freed by means not involving slitting
    • E21C27/28—Mineral freed by means not involving slitting by percussive drills with breaking-down means, e.g. wedge-shaped tools
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/10—Making by using boring or cutting machines
    • E21D9/106—Making by using boring or cutting machines with percussive tools, e.g. pick-hammers
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/10—Making by using boring or cutting machines
    • E21D9/1093—Devices for supporting, advancing or orientating the machine or the tool-carrier

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)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
PL16559873A 1972-10-05 1973-10-03 PL87733B1 (enExample)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722248785 DE2248785C3 (de) 1972-10-05 Vortriebs- und Gewinnungsmaschine

Publications (1)

Publication Number Publication Date
PL87733B1 true PL87733B1 (enExample) 1976-07-31

Family

ID=5858212

Family Applications (1)

Application Number Title Priority Date Filing Date
PL16559873A PL87733B1 (enExample) 1972-10-05 1973-10-03

Country Status (2)

Country Link
GB (1) GB1433756A (enExample)
PL (1) PL87733B1 (enExample)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1554223A (en) * 1976-04-14 1979-10-17 Mining Dev Ltd Earth working machines
JP2589416Y2 (ja) * 1993-09-08 1999-01-27 株式会社小松製作所 拡径トンネル構築用油圧ショベル
WO2010109502A1 (en) * 2009-03-27 2010-09-30 Vincenzo Veltri Multifunction tool
CN117803410B (zh) * 2024-01-26 2024-12-20 南昌航空大学 一种基于隧道施工用的挖掘系统及方法

Also Published As

Publication number Publication date
GB1433756A (en) 1976-04-28
DE2248785B2 (de) 1975-09-18
DE2248785A1 (de) 1974-04-18

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