Abstract: A solar cell system including at least one large-area, amorphous, thin-layer solar cell, at least one electrical voltage converter for increasing the level of the electrical voltage of the electrical current, which is produced by the solar cell, to a level required by a load, and a plurality of current collectors connecting the solar cell with the voltage converter.

Abstract: A drafting apparatus for drafting a sliver in the yarn spinning machine preferably comprises upper and lower inlet rollers (2, 3), upper and lower apron belts (9, 6), upper and lower apron belt guides (10, 7) and upper and lower outlet rollers (4, 5). The upper apron belt (9) passes around the upper inlet roller (3) and the upper apron belt guide (10) and the lower apron belt (6) passes around the lower inlet roller and the lower apron belt guide (7) and cooperates with the upper apron belt (9) to define a nipping area (22) between the belts for nipping the fiber sliver (20) as it passes between the upper and lower inlet rollers while being sandwiched between the upper and lower apron belts (9, 6). The sliver is nipped in the nipping area (22) and is subsequently directed by the belts to a nip (25) formed between the upper and lower outlet rollers.