Bulk material dislodging and gathering apparatus
AssigneeDravo Corporation
InventorAubrey C. Briggs
Life of this patent
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Abstract
A pair of screw conveyors pivotally mounted on rotatable arms extending laterally from the extended ends of the bottom sprocket wheel shaft on a bucket ladder dislodge bulk material and direct it toward the buckets. The bottom sprocket wheels are journaled for rotation independent of the shaft which is rotated by a centrally located drive mechanism to position the rotatable arms and therefore the screw conveyors for various operations.
Claims6
Apparatus for dislodging and drawing bulk material toward a depending elongated bulk material transporter having lifting means which rotates in an elongated closed plane top to raise the bulk material from the lower end of the transporter to the upper end thereof, said apparatus comprising:
- a first elongated member extending laterally out of the plane of said elongated loop formed by the lifting means near the lower end of the transporter,
- a second elongated member extending laterally from the extended end of said first elongated member and rotatable with respect to the loop formed by the lifting means about the longitudinal axis of the first elongated member, said second elongated member extending beyond the elongated closed loop formed by the lifting means except when said second elongated member is rotated toward the upper end of the transporter,
- elongated dislodging and gathering means for dislodging and drawing bulk material along a longitudinal axis thereof, and
- connecting means pivotally connecting one end of the elongated dislodging and gathering means to near the face end of the second elongated member for rotation of the dislodging and gathering means about said one end in a plane containing the longitudinal axis of said elongated dislodging and gathering means.
Dependencies are inferred from the claim text.