BE549842A - - Google Patents

Info

Publication number
BE549842A
BE549842A BE549842DA BE549842A BE 549842 A BE549842 A BE 549842A BE 549842D A BE549842D A BE 549842DA BE 549842 A BE549842 A BE 549842A
Authority
BE
Belgium
Prior art keywords
machine
tools
axes
arms
symmetry
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE549842A publication Critical patent/BE549842A/fr

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21CMINING OR QUARRYING
    • E21C27/00Machines which completely free the mineral from the seam
    • E21C27/20Mineral freed by means not involving slitting
    • E21C27/24Mineral freed by means not involving slitting by milling means acting on the full working face, i.e. the rotary axis of the tool carrier being substantially parallel to the working face

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Shovels (AREA)
BE549842D BE549842A (de)

Publications (1)

Publication Number Publication Date
BE549842A true BE549842A (de)

Family

ID=175935

Family Applications (1)

Application Number Title Priority Date Filing Date
BE549842D BE549842A (de)

Country Status (1)

Country Link
BE (1) BE549842A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3190698A (en) * 1959-03-02 1965-06-22 Lee Norse Co Mining machine
FR2576634A1 (fr) * 1985-01-29 1986-08-01 Voest Alpine Ag Machine de percement de galerie ou haveuse a tetes et/ou tambours de havage rotatifs.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3190698A (en) * 1959-03-02 1965-06-22 Lee Norse Co Mining machine
FR2576634A1 (fr) * 1985-01-29 1986-08-01 Voest Alpine Ag Machine de percement de galerie ou haveuse a tetes et/ou tambours de havage rotatifs.

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