Abstract: Methods for providing at least one product stream, in particular hydrogen, by electrolysis by means of an electrolyzer having a multiplicity of electrolysis cells combined to form at least one framework; wherein electrolyte is discharged from the cells and separated into two phases. The electrolyte is collected upstream of a pump system. At least the functions of discharge and collection are carried out integrally together in a multifunctional collection container or in an integral method step, in particular by means of at least one multifunctional collection container with a regulatable filling level coupled to the cells. This extends the functionality and also provides an advantageous design construction. The invention furthermore relates to a corresponding electrolysis device and to a corresponding multifunctional collection container.

Abstract: The invention relates to a method and an apparatus for manufacturing a workpiece, specifically a rough diamond, into a product, specifically a brilliant. The method is performed by an apparatus providing a laser beam coupled into a pressurized fluid jet. The method comprises executing multiple cuts of the workpiece with the laser beam according to a predetermined cut-sequence to remove workpiece material with each completed cut. The method further comprises executing multiple rotations of the workpiece around the same axis of revolution according to a predetermined rotation-sequence. Thereby, a rotation is executed after a completed cut, and for executing a cut the laser beam is moved along a two-dimensional path.

Abstract: Methods for providing at least one product stream, in particular hydrogen, by electrolysis by means of an electrolyzer having a multiplicity of electrolysis cells combined to form at least one framework; wherein electrolyte is discharged from the cells and separated into two phases. The electrolyte is collected upstream of a pump system. At least the functions of discharge and collection are carried out integrally together in a multifunctional collection container or in an integral method step, in particular by means of at least one multifunctional collection container with a regulatable filling level coupled to the cells. This extends the functionality and also provides an advantageous design construction. The invention furthermore relates to a corresponding electrolysis device and to a corresponding multifunctional collection container.