Abstract: The housing for electric tools comprises a one-piece plastic construction and includes a handle part and a hollow housing part having a metal jacket therein which defines various cavities and bearing bushes and bores for the elements of a drive motor and an eccentric drive for a hammer drill.

Abstract: A remote control device for operation by means of radiation comprising a receiver for the radiation including means for transforming the radiation into an electric signal and rectification means for rectifying the electric signal.

Abstract: A modulation amplifier having an output amplifier element which contains an accumulation choke, a switching tube and a low-pass filter connected in series, with a commutation diode connected to the switching tube is disclosed. The switching tube is controlled by pulse duration-modulated pulses and a semiconductor switch is connected between the switching tube and the pulse duration-modulated pulses. The semiconductor switch comprises two branches, each of which are connected to a different electric potential and each including a controlled semiconductor which acts as a switch, one of the branches being controlled into a conducting state and the other of the branches being controlled into a non-conducting state upon a potential jump in the pulse time-modulated pulses in either the increasing or decreasing directions.

Abstract: For laying a pipeline in deep water by letting out the pipeline in predetermined sections from a pipe laying barge which is correspondingly advanced in a stepwise manner, the end of the pipeline being assembled is subjected to an adjustable holding force which is regulated downwardly from an upper to a lower limit value simultaneously with acceleration of the pipe laying barge in the laying direction, the regulating parameter being the displacement of the pipeline relative to the pipe laying barge.

Abstract: The outer envelope of a capacitor body is provided with an insulation layer and at least the sides are surrounded in consecutive order by a first metal actuation layer, an insulation layer which is deformable or defusable under excess temperature, and a second metal actuation layer with the first metal actuation layer being connected to the first metal conductive layer and the second metal actuation layer being connected to the other metal conductive layer. The construction is such that if there is an increase in temperature in the capacitor body which, for example, may be caused by an overload or a defect, the insulation between the actuation layers will defuse or deform to the extent that the metal layers come in contact and produce a short-circuit which will be effective to throw the capacitor out of the line, such as, by a fusing action.

Abstract: A baking oven has a flame tube defining a baking chamber and a charging opening oriented in a vertical plane; a door for opening and closing the charging opening; a rail structure secured to the door and extending into the oven externally of the flame tube for providing a sliding support for the door for sliding movement in a horizontal direction towards and away from the charging opening. The door is horizontally divided into a lower door portion and an upper door portion. The upper portion is pivotally attached to the lower door portion to provide for a swinging motion of the upper door portion from an upright orientation in an arcuate vertical direction away from the charging opening.

Abstract: In a system for displaying text information obtained from a remote text data bank, which system includes a television receiver equipped for receiving and storing the text information and displaying the information on its screen, an operating device operatively associated with the receiver for effecting program selection and control of the television receiver functions, an accessory device which is connected with the television receiver by means of a line, which accessory device includes a modulator, a demodulator, a dialing device, a conventional telephone interface for connection to a telephone and an interface for connecting the accessory device to an outside telephone line, operating device is arranged to establish a connection with the remote text data bank via the line, the accessory device and the outside telephone line for permitting selected texts to be called up for display on the screen of the television receiver.

Abstract: A solar cell generator for producing electrical energy for terrestrial use including a plurality of interconnected solar cells encased on all sides by a radiation resistant plastic material and a foil of a weather resistant material which adheres to the plastic material covering the outer surfaces of the casing.

Abstract: A conveyor for transporting substantially flat articles, such as mail, along a trough by pusher fingers. The pusher fingers are individually mounted to carriers which are connected to pulling mechanism and guided by guide rails. The present conveyor design causes reduced operational noise and need for maintenance.

Abstract: A semiconductor luminescence component comprises a light emitting element in a light transmitting casing, the casing having internal surfaces for total internal reflection for light rays emitted laterally by the light emitting element.

Abstract: A method of contacting metallic contact areas located on semiconductor bodies comprises passing wires through capillary openings into contact with the connecting contacts and fixing them thereto, severing the wires at predetermined distance from the contact areas and bending the separated wires to enable them to be connected to further connecting parts.The invention also includes a device suitable for carrying out this method.

Abstract: A junction type field effect transistor comprises a source region and a drain region extending into a semiconductor body further than the channel region and a gate region located entirely within the channel region between the source and drain regions, leaving an exposed external surface. The invention also includes a method of making such a transistor.

Abstract: A multi-layer metal connecting contact on a semiconductor body of a predetermined conductivity type comprises three gold layers on the semiconductor body, one on top of the next, with the middle layer containing an impurity material which produces the predetermined type of conductivity in said semiconductor body, and at least one further metal layer not comprising gold arranged on said gold layers.The invention also includes a method of making such a multi-layer metal connecting contact.

Abstract: A circuit breaker switch for periodic current has a stationary contact connected to a first current terminal; a movable contact connected to a second terminal and having a closed position in which it engages the stationary contact and an open position in which it is separated from the stationary contact, an actuating device for moving the movable contact; a locking device having an operative position in which it immobilizes the movable contact in its closed position and an inoperative position in which it is clear of the movable contact; and a current intensity-responsive device connected to the locking device for moving the locking device from its inoperative position to its locking position when the intensity of current flowing through the circuit breaker switch exceeds a first predetermined value and for moving the locking device from its locking position into its inoperative position when the intensity reaches a second predetermined value.

Abstract: In an SSMA data transmission system in which each binary information signal (k.sub.ij) is multiplied with a binary address a.sub.i (t-j T) having Z binary digits and is transmitted after being modulated onto a carrier oscillation signal cos (.omega..sub.i t), the effective signal-to-noise ratio for the desired received signal is improved by providing each receiver station, e. g., the m.sup.th receiver station, with means for reproducing the transmitted data-functions k.sub.i (t) by k.sub.i *(t) of at least one of the stations i.noteq. m by correlation of the received total signal f.sub.e (t) byg*a.sub.i (t) =a.sub.i * (t-j T-.tau..sub.i *) cos (.omega..sub.i * t-.phi..sub.i *)and formingf.sub.i *(t) = K.sub.i *(t) .multidot. a.sub.i *(t-jT-.tau..sub.i. * ) cos (.omega..sub.i *t-.phi..sub.i *);means for subtracting each of the thus reproduced transmitting functions from the received mixture signal f.sub.e (t) to produce a derived received signal f.sub.

Abstract: A circuit for amplifying high frequency electromagnetic waves composed of a Josephson junction constituting an electromagnetic high frequency line along which electromagnetic waves can propagate at a signal frequency and at least one idler frequency, the junction being supplied with a direct voltage which modulates its associated Josephson current with respect to time, and with a magnetic field which modulates that current with respect to space.

Abstract: A zero axis crossing detector for integrated bipolar circuits comprising two current paths connected in parallel to the input for the alternating current signal, for receiving direct current alternately in each path in dependence on the positive and negative half cycles of the alternating current signal and blocking both current paths during zero phases of the alternating current signal, a contant current source providing a direct current output across the paths during positive and negative half cycles and a transistor in each current path connected in a current mirror circuit and connected to provide the same current values of the current supplied by the constant current source in both current paths.

Abstract: A monolithic integrated semiconductor circuit including a plurality of low on-state resistance vertical bipolar switching transistors for connecting a series of input lines, as desired, to one or more output lines wherein each of said switching transistors comprises a substrate region of a first type of conductivity having a first layer thereon of the second type of conductivity, a second layer on the first layer and of the second type of conductivity but with a lower doping than the first layer, a third layer of the first type of conductivity in the second layer, a fourth layer of the second type of conductivity in the third layer, a tank like structure formed from the first layer and a region encircling the second third and fourth layers and of the second type of conductivity, a first frame like region of the second type of conductivity encircling the tank like structure, a second frame like region encircling the first frame like region and being of the first type of conductivity and in contact with the sub

Abstract: A method of etching comprises etching a cadmium-mercury-telluride semiconductor layer by means of an ion beam.

Abstract: An X-ray tube including a cylindrical vacuum envelope at whose frontal or end surfaces are disposed the high voltage leads for the anode and the cathode. The vacuum envelope comprises a cylindrical metal member with at least one end surface face thereof being closed in a vacuum tight manner by means of an annular ceramic member with one of the high voltage leads, and possibly further leads, passing through the central opening of the annular member in a vacuum tight manner, so that the insulating path between the associated high voltage lead and the metal cylindrical member extends in a predominantly radial direction. Preferably the outer surface of the annular ceramic member forms an angle with a plane perpendicular to the longitudinal axis of the X-ray tube which angle is equal to or less than 45.degree., and more preferably equal to or less than 30.degree..