Rotary floor grain bin

A rotary floor comprising a base having an upwardly facing surface and defining a vertically extending center axis, a platform disposed above and in vertical registry with said base, said platform having a bottom side, in which the improvement comprises circular outer and inner lower tracks concentrically mounted on said base, circular outer and inner upper tracks concentrically mounted on said bottom side to be in vertical registry, respectively, with said lower tracks, a plurality of first wheels running on said outer lower track and under and supporting said outer upper track, a plurality of second wheels running on said inner lower track and under and supporting said inner upper track, and means for driving said platform about said axis, said first and second wheels being provided in mated, radially spaced apart pairs, a radially extending axle having opposite outer and inner ends rotatably mounting, respectively, the first and second wheels of each pair, and means for spacing said axles peripherally about said tracks, said spacing means including, extending between adjacent axles, a pair of rigid links, one of said links being an outer link adjacent said first wheels and the other of said links being an inner link adjacent said second wheels.

A rotary floor comprising a base having an upwardly facing surface and defining a vertically extending center axis, a platform disposed above and in vertical registry with said base, said platform having a bottom side, in which the improvement comprises circular outer and inner lower tracks concentrically mounted on said base, circular outer and inner upper tracks concentrically mounted on said bottom side to be in vertical registry, respectively, with said lower tracks, a plurality of first wheels running on said outer lower track and under and supporting said outer upper track, a plurality of second wheels running on said inner lower track and under and supporting said inner upper track, and means for driving said platform about said axis, said base being divided into a plurality of base sections having upper surfaces defining said first mentioned upwardly facing surface, said base sections being spaced radially outwardly from and peripherally about said center axis to provide a maintenance work space beneath the center of said platform and generally radially extending passages for access to said space, said lower tracks bridging over said passages.

A rotary floor comprising a base for providing an upwardly facing supporting surface, a platform for providing a downwardly facing supporting surface, the upwardly and downwardly facing supporting surfaces being in vertical registry and having a common central axis, a first pair of concentric inner and outer tracks mounted on the upwardly facing supporting surface, a second pair of concentric inner and outer tracks mounted on the downwardly facing supporting surface in registry with the inner and outer tracks, respectively, of the first pair, a plurality of pairs of wheels for movably supporting the platform on the base, each pair of wheels including an inner wheel positioned vertically between the inner tracks, the means for coupling the axles of each adjacent pair of wheels to one another comprising link means fixedly connected to adjacent axles to maintain peripheral spacing of the axles, the link means including an inner link connected to adjacent axles adjacent the inner wheels of such adjacent axles and an outer link connected to adjacent axles adjacent the outer wheels of such adjacent axles.

A rotary floor comprising a base having an upwardly facing surface and defining a vertically extending center axis, a platform disposed above said base and having a downwardly facing surface, lower track means concentrically mounted on said upwardly facing surface, upper track means concentrically mounted on said downwardly facing surface, and wheel means riding on said lower track means and under and supporting said upper track means, thereby mounting said platform for rotation about said axis, and means for driving said platform about said axis, said base being divided into a plurality of peripherally spaced apart radial base sections having generally radially and peripherally extending access spaces therebetween, said sections having upwardly facing surface areas lying generally in a common plane to define said first mentioned upwardly facing surface, said lower track means bridging across said access spaces.

In combination, a storage bin and a rotary floor therefor, the rotary floor comprising a base for providing an upwardly facing supporting surface, a platform for providing a downwardly facing supporting surface, the upwardly and downwardly facing supporting surfaces being in vertical registry and having a common central axis, a first pair of concentric inner and outer tracks mounted on the upwardly facing supporting surface, a second pair of concentric inner and outer tracks mounted on the downwardly facing supporting surface in registry with the inner and outer tracks, respectively, of the first pair, a plurality of pairs of wheels for movably supporting the platform on the base, each pair of wheels including an inner wheel positioned vertically between the inner tracks and an outer wheel positioned vertically between the outer tracks, an axle for joining the inner and outer wheels of each pair, the axles extending radially outwardly of the common central axis, means for coupling the axles of adjacent pairs of wheels to one another to maintain peripheral spacing of adjacent pairs of wheels, and means for rotating the platform about the common central axis.