Vibratory material handling device with variable force

Abstract

An apparatus for performing work on material through vibration. An elongated material receiving surface is provided along with a mount for the same that permits the surface to be vibrated. A vibrating mechanism including two spaced vibratory force generating devices may be adjustably secured to the material receiving surface in any of a variety of positions with respect to the center of gravity of the latter so that the direction of the vibratory force applied to the material receiving surface may be varied.

I claim: 
     
       1. A vibratory material handling device comprising: means defining an elongated surface adapted to carry material to be worked upon; a pair of parallel walls on either side of said surface and extending in the direction of elongation thereof; a vibratory mechanism including a frame, a pair of spaced parallel shafts rotatably mounted in the frame and extending transversely of the direction of elongation of the material carrying surface, an eccentric weight at each end of each shaft, means for rotating one of said shafts, independent means for rotating the other of said shafts, said frame carrying said shafts and rotating means in fixed position relative to each other; means mounting said material carrying surface for vibratory movement, means on said walls defining a guide path therealong and providing means for securing the vibratory mechanism thereto; and means for selectively fastening said vibratory mechanism to said securing means at varying points spaced along the guide path to locate the mid-point of a line joining said shafts in a first position on one side of the center of gravity of the device, in a second position where the mid-point is vertically aligned with the center of gravity of said device, and in a third position where said mid-point is on the other side of the center of gravity, whereby to cause said device to convey material thereon in one direction when the vibratory mechanism is in said first position, in the opposite direction when the vibratory mechanism is in the third position, and to vibrate material without conveying the same when the vibratory mechanism is in the second position. .Iadd.2. A vibratory material handling device comprising: means defining an elongated surface adapted to carry material to be worked upon; a pair of parallel walls on either side of said surface and extending in the direction of elongation thereof; a vibratory mechanism including a frame, a pair of spaced parallel shafts rotatably mounted in the frame and extending transversely of the direction of elongation of the material carrying surface and parallel to said surface, an eccentric weight carried by each shaft, means for rotating one of said shafts, independent means for rotating the other of said shafts, said frame carrying said shafts and rotating means in fixed position relative to each other; means mounting said material carrying surface for vibratory movement; and means for securing the vibratory mechanism to the material-carrying member in a position whereby a line intersecting the plane in which the parallel shafts lie at a point midway between said shafts and passing through the center of gravity of the device intersects said plane at an obtuse angle, the means for rotating said shafts permitting the shafts to self-adjust to direct vibratory force along said line. .Iaddend. .Iadd.3. A vibratory material handling device comprising: means defining an elongated surface adapted to carry material to be worked upon; a pair of parallel walls on either side of said surface and extending in the direction of elongation thereof; a vibratory mechanism including a frame, a pair of spaced parallel shafts rotatably mounted in the frame and extending transversely of the direction of elongation of the material carrying surface and parallel to said surface, an eccentric weight carried by each shaft, means for rotating one of said shafts, independent means for rotating the other of said shafts, said frame carrying said shafts and rotating means in fixed position relative to each other; means mounting said material carrying surface for vibratory movement; and means for securing the vibratory mechanism to the material-carrying member in a position whereby a line intersecting the plane in which the parallel shafts lie at a point midway between said shafts and passing through the center of gravity of the device intersects said plane at an acute angle, the means for rotating said shafts permitting the shafts to self-adjust to direct vibratory force along said line. .Iaddend.