Continuous mining machine

Details Continuous mining machine Continuous mining machine

E - Fixed Constructions

21

C

262/49

E21C 27/24 (2006.01)

Patent

CA 1262368

ABSTRACT OF THE DISCLOSURE A continuous mining machine comprising an elongated conveyor assembly for continuously conveying coal cut from a coal seam rearwardly away from the face of the coal seam being cut having a frame structure asso- ciated therewith. A power driven cutting assembly is dis- posed forwardly with respect to the frame structure for cutting coal from the coal seam for conveyance rearwardly by the conveyor assembly. A pair of power driven endless track units is provided for mounting the cutting and con veyor assemblies for movement between a tramming position wherein the assemblies are supported on power driven endless track units in a generally balanced condition for transport within the mine and an operative cutting position wherein the assemblies axe moved forwardly in a generally unbalanced condition. Vertically extensible and retractable jacks are carried by the power driven endless track units for extension into mine roof engagement so as to stabilize the units when the cutting assemblies are moved from the tramming position into the operative cutting position. Power operated units are provided for moving the assemblies from the tramming position into the operative cutting posi- tion while the vertically extensible and retractable means is extended into mine roof engagement.

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