Mining machine having vertically movable primary and secondary cutters
OwnerRex Schollinventor
Life of this patent
Estimating the term…
Abstract
A mining machine for mining coal from outside a hill containing a coal seam wherein a plurality of cutter drums and rotary cutters are pivotally and detachably connected to a pan having an auger conveyor rotatably mounted therein. Certain cutter drums and the rotary cutters are movable in a vertical plane to allow the operator to control the direction of the hole being drilled, and to accommodate the machine to different seam thicknesses or hole heights. A plurality of thrust and torque transmitting units are connected end-to-end between the auger conveyor drive shaft and a prime mover positioned outside the seam tunnel for conveying the cut coal out of the tunnel.
Claims10
A mining machine for mining coal from outside a hill containing a coal seam comprising, a longitudinally extending pan, a longitudinally extending auger conveyor having a drive shaft rotatably mounted in said pan, a first primary cutter connected to one end of said auger conveyor drive shaft, the opposite end of said auger conveyor drive shaft being connected to one end of a thrust and torque transmitting unit, the opposite end of the thrust and torque transmitting unit being operatively connected to a prime mover positioned outside said hill, means connected to the first primary cutter for moving the cutter in a vertical plane, to thereby allow the operator to control the direction of the hole being drilled, a secondary cutter positioned above the first primary cutter, means for detachably connecting said secondary cutter to said pan, said secondary cutter being operatively connected to said auger conveyor drive shaft and means connected to the secondary cutter for moving the cutter in a vertical plane relative to the first primary cutter, to thereby allow the machine to accomodate different seam thicknesses.
Dependencies are inferred from the claim text.