Abstract: A device for the distribution of a large number of element on a tray housed in a container for these elements. The elements are distributed by a mechanical action communicated to the container during a specified period. The device has a system which functions in a learning mode by the recording of parameters of mechanical action and by the storing of these parameters. This system also enables the automatic functioning of the device according to the recorded parameters.

Abstract: A switching device is provided, for measuring capacities, comprising n branches in parallel with n.gtoreq.1, each branch being formed by a capacity to be measured and a switch, the assembly of switches being subjected to a control signal which successively connects each capacity in parallel across the measuring bridge. Each switch may assume two positions, one of the positions connecting electrically the first plate of the capacitor to be measured to one of the ends of the measuring bridge, the other position connecting electrically the first plate to the second one and to the other end of said measuring bridge.