Graz, the chute on that side is fake & those plastic ice blocks are glued onto it. The ice blocks higher up are loose & you raise that chute section to feed free-moving blocks into the rail ice car. If you wish, you could sit a model truck loaded with ice at the foot of the chute with the fixed blocks to give the illusion the blocks are being unloaded into the ice station... & thus, the rail car.
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