BE555053A - - Google Patents

Info

Publication number
BE555053A
BE555053A BE555053DA BE555053A BE 555053 A BE555053 A BE 555053A BE 555053D A BE555053D A BE 555053DA BE 555053 A BE555053 A BE 555053A
Authority
BE
Belgium
Prior art keywords
cylinder
vein
coal
hydraulic cylinder
desc
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE555053A publication Critical patent/BE555053A/fr

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

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)
  • Structure Of Belt Conveyors (AREA)
BE555053D BE555053A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Publications (1)

Publication Number Publication Date
BE555053A true BE555053A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family

ID=179297

Family Applications (1)

Application Number Title Priority Date Filing Date
BE555053D BE555053A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Country Status (1)

Country Link
BE (1) BE555053A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2207241A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1972-11-21 1974-06-14 Sp Konstruktors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2207241A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1972-11-21 1974-06-14 Sp Konstruktors

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