METHOD OF MINING MATERIAL FROM A MINE FACE WITH A ROTARY MINING HEAD

摘要

1283546 Mining GEFFREY GALION Inc 23 Sept 1969 [28 Oct 1968] 46855/69 Heading E1F Material is mined from a mine face by a head 13 rotatable about an axis transverse to the direction of advance of the face, each end of the head having a hemi-ovate form, and the head being advanced into the face and then traversed through the material of the face to leave cusps 90, 92 of the material which are subsequently removed by the head. The head 13 is part of a mining machine similar to that described in Specification 1272418.