FR676589A - Method and device for digging - Google Patents

Method and device for digging

Info

Publication number
FR676589A
FR676589A FR676589DA FR676589A FR 676589 A FR676589 A FR 676589A FR 676589D A FR676589D A FR 676589DA FR 676589 A FR676589 A FR 676589A
Authority
FR
France
Prior art keywords
digging
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
French (fr)
Inventor
Oliver Oscar App
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
Application granted granted Critical
Publication of FR676589A publication Critical patent/FR676589A/en
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)
FR676589D 1929-06-12 1929-06-12 Method and device for digging Expired FR676589A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR676589T 1929-06-12

Publications (1)

Publication Number Publication Date
FR676589A true FR676589A (en) 1930-02-25

Family

ID=9019967

Family Applications (1)

Application Number Title Priority Date Filing Date
FR676589D Expired FR676589A (en) 1929-06-12 1929-06-12 Method and device for digging

Country Status (1)

Country Link
FR (1) FR676589A (en)

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