1. In apparatus for palletizing cylindrical containers, the combination which comprises: a pair of aligned track carrying frames cooperatively sloped so that a cylindrical container can roll From the track on one frame to the track on the other frame; means supporting said pair of frames in substantially matching positions tilted off the vertical so that cylindrical containers on said frames remain in tilted and stable over-center positions on the tracks; first supporting means mounting said one frame in a position to receive containers tilted onto the track thereon from upright positions; second supporting means operably connected to said other frame to support and tilt the track thereon and containers in a direction to return the containers to upright position; and means to position a pallet adjacent said other frame to receive the containers in upright position.

5. Apparatus for palletizing cylindrical containers, the apparatus consisting of: first means to tilt a container from an upright position into a stable overcenter position, a container supporting track sloped in one direction to cause the container tilted onto the track to roll; a frame and track structure cooperatively aligned with said supporting track to receive the tilted rolling container; means to located a pallet adjacent said frame and track structure; first operating means connected to said structure adjacent a pallet to move said frame and track structure between a generally vertical upright position supporting the container on a pallet and a position withdrawn from container support such that the container is released for support directly on a pallet; and container unloading means operative on said structure to effect container return to the upright position.

9. In apparatus for palletizing cylindrical objects, the combination of normally aligned frames having tHe same positions tilted to one side of the vertical, track means on each frame to engage and support the cylindrical objects on said tilted frames, means to tilt load the cylindrical objects onto one of said frames, said one frame being sloped to cause the cylindrical object to roll onto the other of said frames, a pallet support adjacent and below said other frame in position to locate a pallet to receive the cylindrical objects, said other frame and track means thereon being operatively movable between said tilted position and a generally vertical cylindrical object unloading position, means operatively connected to said other frame to move the same between said positions, and an array of sensor devices in said apparatus to control a predetermined sequence of operations including the tilt-loading of cylindrical objects onto said one frame and the tilt-unloading onto a pallet.

12. In apparatus for palletizing cylindrical objects, the combination of a first horizontal conveyor for moving the objects in an upright position on one end, a second conveyor adjacent said first conveyor for moving pallets into a position to be loaded with the objects, and means interrelating said first and second conveyors for the transfer of objects onto a pallet, said interrelating means including a first frame aligned with said first conveyor and providing a track tilted off the vertical, a second frame aligned with said second conveyor and providing a track tilted off the vertical, said frame tracks being aligned to pass objects therebetween and having a slope such that objects roll down the slope on said tracks, means included in said first conveyor to tilt the objects onto said first frame track, and means operatively connected to said second frame to swing said track thereon into a generally vertical position to load the objects on pallets moved into position by said second conveyor.