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Priority to NL6501731ApriorityCriticalpatent/NL6501731A/xx
Publication of NL6501731ApublicationCriticalpatent/NL6501731A/xx
E21C27/00—Machines which completely free the mineral from the seam
E21C27/20—Mineral freed by means not involving slitting
E21C27/32—Mineral freed by means not involving slitting by adjustable or non-adjustable planing means with or without loading arrangements
E21C27/34—Machine propelled along the working face by cable or chain
E—FIXED CONSTRUCTIONS
E21—EARTH OR ROCK DRILLING; MINING
E21C—MINING OR QUARRYING
E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
E21C35/08—Guiding the machine
E21C35/12—Guiding the machine along a conveyor for the cut material