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E21C29/00—Propulsion of machines for slitting or completely freeing the mineral from the seam
E21C29/04—Propulsion of machines for slitting or completely freeing the mineral from the seam by cable or chains
E21C29/14—Propulsion of machines for slitting or completely freeing the mineral from the seam by cable or chains by haulage cable or chain pulling the machine along the working face
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FR982260A1964-07-201964-07-20équipage pour l'extraction de charbon et d'autres minéraux par havage ou rabotage, utilisable notamment dans les mines
ExpiredFR86158E
(fr)
Equipage pour l'abattage du charbon, constitue par un transporteur place devant le front de taille et servant au guidage d'un rabot, utilisable notamment dans les mines
Dispositif pour l'extraction du charbon au moyen d'un équipage de rabotage guidé le long d'un transporteur, utilisable notamment dans les mines.