Abstract: A digital measuring method an apparatus for displaying quasi-analog measured values performs the steps of displaying a measurement scale and interconnected triggerable indicator segments on a display having a given indicator center distance, representing a measured value to be indicated by the position of the indicator segments, controlling the resolution of the quasi-analog measured value display in dependence of the number of indicator segments triggerable within a measurement period to be represented, setting the resolution substantially lower than a resolution with which an A/D converter connected to the display operates, and subjecting a control command for triggering an actual indicator segment to a hysteresis, which assures that a switchover from a previous indicator segment to an actual indicator segmet does not take place until the actual measured value has increased or decreased by substantially more than one-half the given indicator center distance.

Abstract: Test stands for automotive vehicles at the present are required in most cases to permit dynamic tests wherein an essential criterion consists of the simulation of the actual vehicle inertia moment, in order to obtain a realistic acceleration behavior. The test stand normally has a constant inertia moment. A process and a circuit layout is proposed for the simulation of vehicle inertia moments, whereby the test stand and the test specimen represent a n-mass oscillator, the masses of which are elastically joined together. By means of electronic functional elements (24, 25, 27, 32, 33, and 34), an m number of further masses are imitated electronically so that the regulation technical structure corresponds to the differential equation system of a (n+m) mass system. An air gap moment controlled electric machine is used as the transmission element (34) between the electric functional elements (24, 25, 27, 32, 33, and 34) and the mechanical masses. By setting the time constants (T.sub.Kfz, T.sub.

Abstract: The invention relates to an electrochemical storage cell on the basis of alkali metal and chalcogen, particularly sodium and sulfur. The storage cell has an anode space for receiving the anolyte and a cathode space for receiving the catholyte. The two spaces are separated from each other by a cup-shaped solid electrolyte. The solid electrolyte is surrounded in the region of the anode space by a capillary structure over the entire length. The capillary structure has at least one widened portion which is formed by an outward-pointing bulge of the capillary structure. The widened portion extends over the entire length of the capillary structure. Each widened portion is traversed in its interior by a canal. The cylinder surface of this canal is formed by a metal screen. The entrance opening of this canal is directly adjacent to the exit opening of a supply container for the sodium.

Abstract: A circuit breaker which is characterized by its simplicity and the reduction of its parts. The direction of its manual operation and the direction of the movement of its contacts are at right angles. The contact operating mechanism and the latching mechanism interact by abutment of an overdrawn over-center toggle link with the latch lever of the device.

Abstract: A method for automatically controlling the air ratio of a combustion process by adjustment of the fuel-air mixture as function of the air number, the air number of the exhaust gas being measured with a sensor which is particularly sensitive at an air number of a given magnitude, and the combustion process operating with an air ratio having an air number of a different magnitude out of the sensitivity range of the sensor which includes extracting a hot exhaust gas stream from a combustion process having an air ratio with an air number out of the given sensitivity range of a sensor changing the amount of air in the exhaust gas stream to provide an auxiliary gas stream having an air number in the sensitivity range of the sensor, measuring the air number of the auxiliary gas stream to detect the difference from the air number of the given magnitude, and controlling the air ratio of the combustion process to maintain the air number of the auxiliary gas stream at the given magnitude, and apparatus for carrying out

Abstract: Electrochemical storage cell or battery based on sodium and sulfur having an anode chamber and a cathode chamber separated from each other by a dividing wall capable of conducting sodium ions, is provided with a screening electrode disposed in the chamber containing sulfur as a reactant between the dividing wall and the outer cell wall of said chamber to electrically screen the cell wall and thereby minimize corrosion of the cell wall.

Abstract: The combination of a current limiting device and at least one openable isolating point electrically connected therewith, the current limiting device including a variable, pressure-sensitive solid-state resistance the resistance being variable from an initially relatively very low resistance or impedance value to a relatively very high resistance or impedance value when the isolating point is opened, the solid-state resistance being integrated into the isolating point as a switch contact member.

Abstract: An electrochemical storage cell or battery based on alkali metal and sulfur with at least one anode chamber containing alkali metal and one cathode chamber containing sulfur-alkali compounds separated from each other by an ion-conducting solid electrolyte wherein the sulfur-alkali compounds are at least partially dissolved in an organic liquid solvent with a boiling point above the operating temperature of the cell, the operating temperature being in the range of about 100.degree. to 200 C. The solvent permits lower operating temperature with reduced rate of corrosion.

Abstract: Method of producing the insulation of a conductor bundle having a plurality of metallic conductors spaced one from another which includes immersing the conductor bundle into a mass of insulating material heated to liquid state, and withdrawing the conductor bundle coated with liquid insulating material out of the mass of liquid insulating material at a speed that is slower than the speed at which the liquid insulating mass drips from the conductor bundle; and device for performing the foregoing method.

Abstract: An interrupter for internal combustion engines includes fixed reed-switch type contact means which are caused to be opened and closed at the proper points of time by means of magnetic fields generated by a rotatable formed by magnetic particles and an insulating binder and armature having alternating magnetic field zones and zones which do not produce significant magnetic fields. The reed-switch contact means are enclosed in a multifunction housing.

Abstract: Electric switch includes a fixed contact member and a movable contact member movable from a position wherein it is in contact with the fixed contact member to a position wherein it is spaced therefrom, one of the members having a nozzle-like inner channel, a blast piston-cylinder assembly surrounding the contact members in the contact position thereof wherein the switch is in switched-on condition, the cylinder and the piston being displaceable relatively toward one another in the switched-on condition of the switch so as to compress a gas received in the space between the piston and the cylinder, the fixed and movable contact member in the spaced position thereof, during switch-off of the switch, having an arc therebetween, the arc being blown by an extinguishing flow through the nozzle-like inner channel of the gas compressed by the piston and cylinder assembly, the piston having a base secured to the movable contact member drive means for substantially uniformly actuating on the cylinder, the compressive f

Abstract: A self-commutating inverter having at least two main thyristors connected to a d-c source, a commutating arrangement consisting of an energy storage device and auxiliary thyristors connected anti-parallel to each other, a load and a firing control arrangement with outputs which are associated with the main and the auxiliary thyristors and can be impressed with firing pulses at presettable times, wherein the auxiliary thyristor associated as the commutation valve with the main thyristor to be relieved is triggered prior to the firing of the relieving main thyristor by a presettable time interval, and means to monitor the system.