FR475441A - Perfectionnements aux mécanismes destinés à tailler le roc - Google Patents

Perfectionnements aux mécanismes destinés à tailler le roc

Info

Publication number
FR475441A
FR475441A FR475441DA FR475441A FR 475441 A FR475441 A FR 475441A FR 475441D A FR475441D A FR 475441DA FR 475441 A FR475441 A FR 475441A
Authority
FR
France
Prior art keywords
rock
cutting mechanisms
mechanisms
cutting
Prior art date
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
Other languages
English (en)
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.)
IMP TUNNELING MACHINE Co
Original Assignee
IMP TUNNELING MACHINE Co
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 IMP TUNNELING MACHINE Co filed Critical IMP TUNNELING MACHINE Co
Application granted granted Critical
Publication of FR475441A publication Critical patent/FR475441A/fr
Expired 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
    • E21D9/11—Making by using boring or cutting machines with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines
    • E21D9/112—Making by using boring or cutting machines with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines by means of one single rotary head or of concentric rotary heads

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
FR475441D 1914-05-08 1914-05-08 Perfectionnements aux mécanismes destinés à tailler le roc Expired FR475441A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR475441T 1914-05-08

Publications (1)

Publication Number Publication Date
FR475441A true FR475441A (fr) 1915-05-12

Family

ID=1513331

Family Applications (1)

Application Number Title Priority Date Filing Date
FR475441D Expired FR475441A (fr) 1914-05-08 1914-05-08 Perfectionnements aux mécanismes destinés à tailler le roc

Country Status (1)

Country Link
FR (1) FR475441A (fr)

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