Abstract: An apparatus for supplying a multi-layer, multiaxial yarn stratum to the knitting site of a warp knitting machine, with endless conveyor chains for guiding the yarn stratum to the knitting site, with at least two multiple yarn guides, which can be moved changeably over both conveyor chains for each yarn sheet and with means for supporting the yarn stratum. The prelaid yarn stratum is supplied in such a manner, that at least one endless conveyor belt is driven synchronously with the conveyor chains and supports the yarn stratum, and is guided over guide rollers mounted on the frame with the distance between the guide roller and the knitting site bridged with the help of supporting guiding elements for the yarn stratum.

Abstract: A high gold content dental alloy comprises, on a weight basis, 91 to 99.4% of gold, 0.5 to 3% of at least one metal selected from titanium and tantalum, up to 5% of silver, 0.05 to 1% of iridium and/or tungsten, and up to 1% at least one element selected from the group comprising rhodium, ruthenium, platinum, osmium, iron, molybdenum, niobium and rhenium.

Abstract: A circuit arrangement for automatic gain control of NRZ data signals. In this arrangement there is detected with the aid of two comparators whether a logic level in the NRZ data signal produced by a controllable amplifier is exceeded or fallen short of. The signals produced by the comparators are time-averaged with the aid of RC combinations and subjected to a logic AND combination. The signal available at the output of the AND combination is integrated in an integrator stage and transported as a control signal to a set input of the controllable amplifier.