Abstract: A mixing apparatus containing a drive unit having a drive and a shaft that is pivotable about a pivot axis and is operatively connected to the drive. A pivotable receptacle is arranged on the shaft, where the pivot axis is oriented essentially horizontally, and the pivotable receptacle has a base plate and at least one retainer spaced therefrom, and the pivotable receptacle is configured in such a way that holders for containers can be inserted between the base plate and the at least one retainer in the direction of the pivot axis.

Abstract: A screw element for fastening an article to a counter-piece, including a first part rotatable by hand or with a tool and a second part provided with a thread, wherein the first part and the second part can be rotated relative to one another about a longitudinal axis of the screw element, but can be held axially to one another via a connection point, as well as being composed of an installation limiting a torque transferred from the first part to the second part, the installation having at least one ramp part which can rotate with the first part or with the second part in a direction in parallel to the longitudinal axis of the screw element with respect to a spring bias and cooperating with ratchet noses of the respective other one of the first part or the second part.