Abstract: In a circuit arrangement including a plurality of multi-position data switches and a memory connected for storing, in respective addressable memory locations, representations of the positions of the data switches, each data switch is a multi-digit coding switch having an actuating input and a plurality of code outputs at which appear a set of signals representative of the setting of the switch upon appearance of a signal at its actuating input, and the arrangement further includes a multiplex signal generator having a plurality of clock outputs each connected to the actuating input of a respective coding switch, the generator being arranged to produce a sequence of pulse signals and to deliver each pulse signal of the sequence to a respective clock output, and a bus bar composed of a plurality of conductors equal in number to the number of code outputs of each coding switch, with each conductor being connected between the memory and a respective coding output of each coding switch so that the appearance of a

Abstract: A revolving feed through connection has a socket member to which are connected mechanically the electrical conductors; a pair of coaxial conductors are mounted on the socket member and electrically to the said cable conductors while being insulated from each other; a sleeve made of strong material is mounted on the socket member and is firmly connected thereto. Means in the housing define a bearing for the sleeve and receiving the sleeve for permitting turning of the socket with the sleeve about an axis, which is coaxial to the conductors of the pair. The sleeve and bearing are constructed for axially retaining the sleeve in the bearing.

Abstract: A circuit suitable for use in an induction range. The circuit includes a resonant inverter having first and second gate controlled thyristor switches, the main conduction paths of which are serially connected between the power supply terminals. Trigger pulses for the switches are derived from the current supplied to the inverter load coil. The pulses are timed to prevent the first switch from being closed before the second switch has opened so that both switches can never be conductive at the same time. It also includes circuitry for stopping inverter operation in the event of an overcurrent condition and circuitry for adjusting the inverter output power.