JPS4931841B1 - - Google Patents

Info

Publication number
JPS4931841B1
JPS4931841B1 JP43053045A JP5304568A JPS4931841B1 JP S4931841 B1 JPS4931841 B1 JP S4931841B1 JP 43053045 A JP43053045 A JP 43053045A JP 5304568 A JP5304568 A JP 5304568A JP S4931841 B1 JPS4931841 B1 JP S4931841B1
Authority
JP
Japan
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.)
Pending
Application number
JP43053045A
Other languages
Japanese (ja)
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 JPS4931841B1 publication Critical patent/JPS4931841B1/ja
Pending legal-status Critical Current

Links

Classifications

    • 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
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
    • E21C25/58—Machines slitting by drilling hole on hole

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)
  • Environmental & Geological Engineering (AREA)
  • Earth Drilling (AREA)
JP43053045A 1967-08-17 1968-07-29 Pending JPS4931841B1 (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH63632A DE1283176B (de) 1967-08-17 1967-08-17 Grossbohreinrichtung fuer die Gewinnung von Mineralien, insbesondere von Kohle

Publications (1)

Publication Number Publication Date
JPS4931841B1 true JPS4931841B1 (enrdf_load_stackoverflow) 1974-08-26

Family

ID=7162394

Family Applications (1)

Application Number Title Priority Date Filing Date
JP43053045A Pending JPS4931841B1 (enrdf_load_stackoverflow) 1967-08-17 1968-07-29

Country Status (3)

Country Link
JP (1) JPS4931841B1 (enrdf_load_stackoverflow)
DE (1) DE1283176B (enrdf_load_stackoverflow)
FR (1) FR1575228A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53117434U (enrdf_load_stackoverflow) * 1977-02-24 1978-09-19

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53117434U (enrdf_load_stackoverflow) * 1977-02-24 1978-09-19

Also Published As

Publication number Publication date
FR1575228A (enrdf_load_stackoverflow) 1969-07-18
DE1283176B (de) 1968-11-21

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