Abstract: A process for preparing a dry substantially pure and/or technical carnitine powder or granulate, from a substantially unpurified starting material containing a carnitine compound.

Abstract: A process for preparing a dry substantially pure and/or technical carnitine powder or granulate, from a substantially unpurified starting material containing a carnitine compound.

Abstract: Capacitively sensitive antennas are located at the closing edges of automatically controlled elevator doors to generate error signals by way of differential amplifiers if capacitively influenced by an obstacle or a disturbance. A door travel detector and pulse generator divide the entire door region into incremental travel distances of, for instance, one centimeter steps to control a compensator which consists of a threshold value detector, a forward/reverse counter and a digital/analog converter. Every error signal is subjected to compensation at every door movement for the associated travel distance increment and floor and the determined compensation value is stored for use in the next compensation cycle.

Abstract: Weighing apparatus of the electromagnetic load compensation type is disclosed including zero-position detector means for generating a position signal that is a function of the extent to which a loaded weighing pan or the like is displaced from its no-load position, and regulating means responsive to said position signal for generating a compensating current for displacing the weighing pan toward its no-load position, characterized by the provision of filter means connected between the zero-position detector and the regulating means for suppressing the undesired extraneous interference acceleration signals produced, for example, by external shock or vibration forces imparted to the weighing apparatus. In one embodiment, the filter electrical components are constant, and in a second embodiment, means are provided for varying the electrical characteristics of at least some of the filter components as a function of the load applied to the weighing pan.