Abstract: A vibratory apparatus includes a trough having a first end and a second end, and at least first and second variable amplitude vibration generators coupled to the trough. The first and second variable amplitude vibration generators include at least one variable eccentric weight assembly having a variable center of mass relative to an axis of rotation. The first and second variable amplitude vibration generators have at least a first state wherein an amplitude of a vibratory force generated by the first vibration generator is different than an amplitude of a vibratory force generated by the second vibration generator to cause movement of material in the trough toward the first end or the second end.

Abstract: A lined drum includes a drum having a wall with an inner surface. The lined drum also includes a plurality of liner segments, each liner segment having inner and outer opposing surfaces, opposing side edges, and opposing end edges, the outer surface of the liner segment facing the inner drum surface and the side edges of adjacent liner segments being spaced from each other to define a space therebetween, and at least one retainer having opposing side edges overlapping the side edges of the adjacent liner segments, the at least one retainer attached to the wall of the drum in the space between the side edges of the adjacent liner segments. The lined drum may also include a plurality of bar segments, each bar segment attached to the wall of the drum and at least one retainer.

Abstract: A lined drum includes a drum having a wall with an inner surface. The lined drum also includes a plurality of liner segments, each liner segment having inner and outer opposing surfaces, opposing side edges, and opposing end edges, the outer surface of the liner segment facing the inner drum surface and the side edges of adjacent liner segments being spaced from each other to define a space therebetween, and at least one retainer having opposing side edges overlapping the side edges of the adjacent liner segments, the at least one retainer attached to the wall of the drum in the space between the side edges of the adjacent liner segments. The lined drum may also include a plurality of bar segments, each bar segment attached to the wall of the drum and at least one retainer.