Abstract: The invention relates to an auxiliary material for soldering steel sheets, wherein the auxiliary material comprises weight percentages of 15 to 40% Zn, 5 to 30% Mn, 0.01 to 10% Ni, and typical impurities no greater than 1%, and the remainder Cu.

Abstract: An alloy, especially for spectacle frames, jewelry and for other metal parts to be worn on the body or on items of clothing in contact with said body. The alloy consists of the following components: Sn 8-14 wt. %, Zn 1-8 wt. %, Mn 0.001-3 wt. %, P 0.001 0.3 wt. %, Fe 0.001 0.5%, the remainder being Cu.

Abstract: Conventional weld fillers contain copper, aluminum and manganese. These weld fillers are as a rule not suited for the welding of thin or rust-free sheet metals. The inventive weld filler contains 0.5 to 6.0 percent by weight Al, 0.5 to 8.0 percent by weight Mn, the usual impurities are less than or equal to 1.0 percent by weight and as the remainder Cu. This weld filler is better suited for the welding of thin or rust-free sheet metals than the up to now known weld fillers.

Abstract: Conventional weld fillers contain copper, aluminum and manganese. These weld fillers are as a rule not suited for the welding of thin or rust-free sheet metals. The inventive weld filler contains 0.5 to 6.0 percent by weight Al, 0.5 to 8.0 percent by weight Mn, the usual impurities are less than or equal to 1.0 percent by weight and as the remainder Cu. This weld filler is better suited for the welding of thin or rust-free sheet metals than the up to now known weld fillers.

Abstract: A device for determining a rotation rate is described, in which by means of digital evaluation circuits the output signals of a rotation rate sensor are evaluated. By identification of the transfer function from the electronically generated oscillation voltage that excites the oscillating body carrying the acceleration elements, to the output of the acceleration elements, or by identification of the transfer function from the electrically generated test voltage at the input of the acceleration elements to their output, the systematic errors of the rotation rate sensor are determined and taken into account in the digital sensor signal processing, with the aid of which the rotation rate is unequivocally determined.

Abstract: A controlled current source apparatus with a voltage/current converter for deriving a signal current fed to a load, includes a first current source delivering a first d-c current super-imposed on the signal current, and a second current source connected parallel to the load for delivering a second d-c current substracted from the d-c current leading into the load.

Abstract: A device for stabilizing the voltage between two conductors of an a-c network comprises a thyristor switching circuit and a choke element connected in series between the conductors and in parallel to a control circuit. The control circuit activates the thyristor circuit to connect the two conductors upon detecting equality between a predetermined reference value and a sum of two areas under a half-wave portion of the voltage-time curve of the two conductors, the first area being measured by an integrator and extending from the beginning of the half-wave period to a current instant and the second area being calculated by analog arithmetic components and extending from the current instant to the end of the half-wave period.

Abstract: A circuit for controlling the voltage of a network which supplies electrical power to a load having a rapidly varying impedance. The circuit contains a pair of controlled electric valves which are connected in parallel between two conductors of the network and poled for condition in opposite directions. A voltage transformer produces a signal corresponding to the network voltage, which signal is conducted to an integrator and subsequently compared to a preset mean value. The preset mean value corresponds to a desired amplitude at which the positive and negative half-wave cycles of the network voltage are desired to be maintained. In one embodiment, the controlled electric valves are caused to conduct current during respective half-waves of network voltage so as to maintain the amplitudes of the half-waves at the present mean value. Other features are described for compensating for long term drift of the network voltage and for controlling the controlled electric valves by means of logic circuitry.

Abstract: Apparatus for use in balancing an asymmetrical load which is supplied from a three-phase network. The apparatus is provided with a self commutating converter for generating a three-phase output current system on its a-c side which is fed with phases reversed to the network. The d-c side of the converter, in turn, is fed from a d-c source with a d-c current corresponding to the maximum asymmetry power to be balanced.