초록 ▼

A combination screening apparatus and carrier. The screening apparatus has three hydraulic leg assemblies which are adapted to lift and lower the screening apparatus off and onto a carrier. The legs are positioned and operable that a carrier may be slid directly under the screening apparatus without

A combination screening apparatus and carrier. The screening apparatus has three hydraulic leg assemblies which are adapted to lift and lower the screening apparatus off and onto a carrier. The legs are positioned and operable that a carrier may be slid directly under the screening apparatus without interference with the legs. The carrier has pivotable holding elements which engage grasping elements fixedly attached to said screening apparatus. The shape and configuration of the holding elements and grasping elements are such that the screening apparatus is self-aligning on the carrier. The carrier may be left under the screening apparatus or removed during screening operations.

대표청구항 ▼

[ I claim:] [1.] A screening apparatus for separating fine materials from coarse materials in a shaker mode and for mixing two or more fine materials together in a mixer mode, in combination with a carrier, comprising:a screening apparatus having a box-like shape with a vertical front end, a vertica

[ I claim:] [1.] A screening apparatus for separating fine materials from coarse materials in a shaker mode and for mixing two or more fine materials together in a mixer mode, in combination with a carrier, comprising:a screening apparatus having a box-like shape with a vertical front end, a vertical rear end, a vertical tailings side, a vertical conveyor side, a generally horizontal top side and a horizontal bottom side, said screening apparatus having a longitudinal axis defined by said front end and said rear end, said screening apparatus further comprising:a frame within said screening apparatus, said frame having a two-tiered screen assembly for sifting and mixing materials;a generally horizontal conveyer attached within said frame beneath the screen assembly transverse to the screening apparatus longitudinal axis;an engine tray mounted on the screening apparatus front end;a hydraulic pump mounted on the engine tray;a hydraulic fluid tank mounted on the screening apparatus front end above the engine tray;a plurality of hydraulic lines interconnecting said hydraulic fluid tank and said hydraulic pump with a plurality of hand-operated valves attached to said screening apparatus, said cables branching out from said valves to three hydraulic leg assemblies;three hydraulic leg assemblies attached to said screening apparatus and adapted for lifting and lowering said screening apparatus, one of said leg assemblies being attached to the apparatus front end adjacent to the conveyer side, another of said leg assemblies being attached to the apparatus front end adjacent to the tailings side, and the last of said leg assemblies being attached to the center of the apparatus rear end, each said leg assembly having a vertical fluid cylinder, a piston projecting downwardly from said cylinder, and fluid inlet/ outlet ports on said cylinder, said fluid inlet/outlet ports being interconnected to hydraulic lines connected to said hand-operated valves wherein manipulation of the valves will cause a reaction in the hydraulic leg assemblies whereby the pistons will extend outwardly or retract inwardly from the cylinders;four grasping elements, two of said grasping elements being fixedly attached to the tailings side, one near the front and one near the rear, and two being fixedly attached to said conveyor side, one near the front and one near the rear, each said grasping element having a wedge-shaped interior;in combination with:a trailer-type, towable carrier, comprising:a generally rectangular frame having a front, rear, two sides, top and bottom, and a longitudinal axis running from the frame rear through the frame front, said carrier frame longitudinal axis being parallel to the longitudinal axis of the screening apparatus;a V-shaped tow bar attached to the frame front;four elongated holding elements each having two ends, a proximal end and a distal end, two of said holding elements being pivotally attached to each side, one near the front and one near the rear, each said holding element distal end having a wedge-shaped protrusion formed on the holding element extending vertically upward, said wedge-shaped protrusion generally corresponding in shape to the grasping element interior.