(under subclass 602) Apparatus including at least two conveyors, each comprising a body that spins about an axis passing therethrough.
(1) Note. Included here are (a) rotating wheels, each having a plurality of buckets or platforms mounted on its periphery, (b) rotating disks which carry the load on their upwardly facing planar surfaces, or (c) screws rotating about their longitudinal axes.
(2) Note. Included here as a system with plural conveyors are screws which successively convey a load and which are driven by a single power source, a first screw being connected to said power source, and a second screw being coupled to said first screw only by gears which transmit driving force therebetween.
(3) Note. This subclass includes power-driven rollers arranged in separate groups clearly recognizable as forming separate portions of a load conveying path (e.g., one line of rollers disposed perpendicular to another line of rollers, or two lines of rollers having another type of conveyor therebetween). But the subclass does not include power-driven rollers arranged in a single line, even where the rollers are rotated by separate drive means. See subclasses 780+.
(4) Note. Included here is a rotatable shaft carrying (a) a helical surface or screw, and (b) one or more radially projecting vanes that impel a load radially away from said shaft after the load has been moved to said vane, or vanes, by said helical surface.
SEE OR SEARCH THIS CLASS, SUBCLASS: 662+, for screw conveyors having plural helical surfaces, particularly subclasses 625+, for coating helical surfaces on parallel axes, and subclass 666, for helical surfaces coupled end to end.
780+, for power-driven rolls arranged in an uninterrupted sequence to form a single unbranched conveying path.
