Abstract: A method for the introduction of auxiliary grinding bodies into an agitator ball mill and for the removal of auxiliary grinding bodies from an agitator ball mill. The auxiliary grinding bodies are transported into the agitator ball mill and out of the latter via a closed circuit by means of a hydraulic conveying medium.

Abstract: A method for the introduction of auxiliary grinding bodies into an agitator ball mill and for the removal of auxiliary grinding bodies from an agitator ball mill. The auxiliary grinding bodies are transported into the agitator ball mill and out of the latter via a closed circuit by means of a hydraulic conveying medium.

Abstract: A control unit having an oscillator for a processor is described, the control unit storing a temporary absence of oscillation of the oscillator in a first error memory, if oscillation begins again after the absence.

Abstract: A control unit having an oscillator for a processor is described, the control unit storing a temporary absence of oscillation of the oscillator in a first error memory, if oscillation begins again after the absence.

Abstract: An agitator shaft (22) is diposed in a milling body (12) which includes a grinding chamber (18) to be filled at least partly with grinding media (50) and material (52) to be ground and has an inlet for material to be ground and an outlet for crushed material. The agitator shaft (22) has an end portion (38) in which a cavity (40) is formed which is open at the inner shaft end. The end portion (38) comprises recesses (46) all around the cavity (40) to permit grinding media (50) to flow off which entered the cavity (40) through the inner shaft end. A separating means (42) is arranged inside the cavity (40) to permit finished pulverized material (52) to flow out of the grinding chamber (18) to the outlet (30) while it retains grinding media (50). In this manner the separating means (42) is effectively protected from any direct impact of activated grinding media (50). And yet the risk is avoided that the separating means (42) becomes clogged, by virtue of the rotation of the agitator shaft (22).

Abstract: A combination power window and power door locking device for use in an automotive vehicle door. The locking of the door is accomplished by rotatably mounting the common motor in the door and resiliently urged toward an angular stop position. After the window pane is in one of its end positions, continued application of external power to the motor rotates the motor away from the stop position to activate the door locking mechanism.