The body (3) is turned by a lever, and the tilting shaft (9) above it has two levers (6,7) at one end. The wheel (5) rolls in a guide (4) between the levers, acting on them so as to tilt the shaft (9). The movements of shaft and body are independent of each other. The levers can be detachable from the shaft, and body it and the body can be positively turned, their rotation in each case being limited to 35 degrees. USE - Discharges goods against travel direction, allowing widely varying discharge speed and acceleration in both directions.