A material gathering apparatus with a bucket; a motor having a shaft; and a plurality of blades; in which the hydraulic motor is fixed below the bucket; and the plurality of blades are fixed within the bucket and are rotatable clockwise or counterclockwise around the shaft. According to the invention, at least one locking element is provided, which is mechanically coupled to the selector lever and by means of which the shift lock can be activated andor deactivated in that with respect to the gearshift gate that is to be blocked, the locking element can be moved into and out of the traversing path of the selector lever. The memory cell is manufactured using low thermal budget processes. In one embodiment, the handle pivot axis may run through a clearance space for the spark plug, and the handle may have a U shape to avoid interference with the spark plug. The training speech may be verbal, non-verbal, a combination of verbal and non-verbal, or multimodal.