A conveyor utilizing a plurality of slats; said conveyor comprising: a) a helical support comprising: i) a first track, wherein at least a portion of said first track spirals simultaneously with said helical support; ii) a second track, opposite said first track, wherein at least a portion of said second track spirals simultaneously with said helical support; and b) said plurality of slats traveling an endless pathway about said helical support; each slat having a superior article carrying side and an opposed side; wherein said opposed side further comprises: i) a first landing gear integral with said slat carrying a first wheel for engaging said first track, wherein vertical and horizontal movement but not rotational movement of said first wheel is limited by contact with said first track; and ii) a second landing gear integral with said slat carrying a second wheel for engaging said second track, wherein vertical and horizontal movement but not rotational movement of said second wheel is limited by contact with said second track; and c) a drive driving said plurality of slats; each of said tracks (210f, 210s) comprises an upper rail (212f, 212s) for said first and second wheels (82f, 82s), a lower rail (214f, 214s) for said first and second wheels (82f, 82s) and a connector (21 6f, 216s) extending between said upper rail (212f, 212s) and said lower rail (214f, 214s) and the combination of upper rails (212f, 212s), lower rails (214f, 214s) and connectors (216f, 216s) controls the vertical and horizontal movements but not the rotational movements of said wheels (82f, 82s) of said landing gears (80f, 80s); the conveyer being characterized in that: the axis of rotation of the first wheel is parallel to the slat; and the axis of rotation of the second wheel is parallel to the slat. a) a helical support comprising: i) a first track, wherein at least a portion of said first track spirals simultaneously with said helical support; ii) a second track, opposite said first track, wherein at least a portion of said second track spirals simultaneously with said helical support; and i) a first track, wherein at least a portion of said first track spirals simultaneously with said helical support; ii) a second track, opposite said first track, wherein at least a portion of said second track spirals simultaneously with said helical support; and b) said plurality of slats traveling an endless pathway about said helical support; each slat having a superior article carrying side and an opposed side; wherein said opposed side further comprises: i) a first landing gear integral with said slat carrying a first wheel for engaging said first track, wherein vertical and horizontal movement but not rotational movement of said first wheel is limited by contact with said first track; and ii) a second landing gear integral with said slat carrying a second wheel for engaging said second track, wherein vertical and horizontal movement but not rotational movement of said second wheel is limited by contact with said second track; and i) a first landing gear integral with said slat carrying a first wheel for engaging said first track, wherein vertical and horizontal movement but not rotational movement of said first wheel is limited by contact with said first track; and ii) a second landing gear integral with said slat carrying a second wheel for engaging said second track, wherein vertical and horizontal movement but not rotational movement of said second wheel is limited by contact with said second track; and c) a drive driving said plurality of slats; each of said tracks (210f, 210s) comprises an upper rail (212f, 212s) for said first and second wheels (82f, 82s), a lower rail (214f, 214s) for said first and second wheels (82f, 82s) and a connector (21 6f, 216s) extending between said upper rail (212f, 212s) and said lower rail (214f, 214s) and the combination of upper rails (212f, 212s), lower rails (214f, 214s) and connectors (216f, 216s) controls the vertical and horizontal movements but not the rotational movements of said wheels (82f, 82s) of said landing gears (80f, 80s); the conveyer being characterized in that: the axis of rotation of the first wheel is parallel to the slat; and the axis of rotation of the second wheel is parallel to the slat. the axis of rotation of the first wheel is parallel to the slat; and the axis of rotation of the second wheel is parallel to the slat.