Abstract: A corona discharge device for electrographic apparatus which makes use of a drum-shaped photosensitive screen. The device is provided with a corona electric field establishing electrode extending in parallel with a corona discharge wire and supplied with an electric potential which is intermediate the electric potential of a field electrode and the electric potential of the corona discharge wire.

Abstract: An exhaust device is provided comprising a first diverging portion extending into a cylindrical envelope into which is axially displaceably mounted a streamlined conically shaped member adapted to be moved in relationship to the engine rating.

Abstract: A centralized monitor and control system includes a plurality of pairs of link lines which connect, in matrix form, a plurality of alarm switches, controlled devices, etc., installed at an alarming terminal end with a plurality of alarm display devices, starting control switches, etc., installed at a receiving end in correspondence with the devices at the terminal end, whereby the display devices adapted to be actuated by the alarm switches or the controlled devices adapted to be actuated by the control devices are operated in response to sequential scanning of the one link lines of the paired link system, thus decreasing the number of the link lines used.The number of the link lines used can be decreased further by effecting the sequential scanning by means of a parallel set of binary coded pulse signals and by connecting the one link line array of the matrix to the alarm switches or the controlled devices and the display devices or the control switches through logical circuits.

Abstract: A pneumatic laminar motor, for dental purposes, having a sleeve-like housing forming the stator with circular cylindrical inside wall and a rotor inside touching that wall. The rotor has a diameter smaller than the inside wall and its rotary axis is parallel to, but displaced from the axis of the inside wall. The lengthwise slots of the rotor has radially movable lamellas with their outer ends pointing to the inside wall. An air inlet opening from the air supply conduit and an air outlet opening discharge into the space between rotor and inside wall. A freely rotating bearing ring is located between the inside wall and the outer ends of the lamellas and is coaxial with the inside wall. The outer ends of the lamellas contact the bearing ring. Compressed air enters through the air inlet opening into the space between rotor and inside wall and pushes the nearest lamella ahead of it to turn the motor.

Abstract: A mechanism for transforming a translation movement into a rotation movement which is then followed by a translation movement comprising a first member which can be a control member slidable on a smooth shaft and constituted by a hollow cylinder coaxial with the shaft, and terminated by two planar symmetrical faces which are inclined with respect to the shaft, and a second member which can be a driven member and fixed to the shaft. The second member is constituted by two hollow cylinders coaxial with the shaft and of the same diameter as the control member. Each hollow cylinder terminates with a planar face having the same inclination with the shaft as the faces of the control member, the planar faces of the hollow cylinders being in contact with respective faces of the control member. The two planar faces of the driven member are angularly offset relative to one another.

Abstract: A master cylinder body including a cylindrical-shaped inner section of uniform wall thickness formed as by die-casting and an outer section cast on the inner section around the periphery thereof. The extreme simplicity in configuration of the inner section enables it to be formed with no casting defects such as shrinkage cavities which may result in oil leakage therethrough. The inner section and the outer one cast thereon become solidly fused together at the cylindrical interface therebetween as long as the materials used are of the same metallurgical type. Formation of a multitude of annular or helical ridges on the outer periphery of the inner body section further ensures the solid interconnection between the two body sections.

Abstract: In the detection of cracks in fuel element units using a crack detection cell, the cell includes heating means which are energized to heat the unit. The heating means form part of a pocket in which the unit is received, the pocket being received in a double-walled chamber which can be thermally insulated from the surrounding medium.

Abstract: A method for the formation of a safe storage area to hold materials, where the storage area is in the form of an underground storage cavern in a preferably rock formation maintained at a different temperature from the natural temperature of the environs surrounding the walls, floor, and the ceiling of said storage cavern. The inside of the storage cavern is with or without insulation and an inner first circulation system surrounds the cavern. The circulation system has a plurality of channels regularly distributed around the cavern and near its surface parallel to the axis of the storage space. The system of tunnels formed of the channels together encloses and surrounds the cavern.

Abstract: A rotor film mass and heat exchanger comprises a casing of a circular cross section with liquid and gas inlet pipe connections at one end and with liquid and gas outlet pipe connections at the other. Installed coaxially and rotatably in the casing is a shaft carrying reflux stages which are formed by bands bent as spirals diverging from said shaft and flanged towards the latter.

Abstract: For use as a structural unit in a variety of coastal and other civil engineering works, a formed block or pile of concrete or other material is provided which comprises a conical body and a cylindrical leg extending coaxially from the vertex of the body. Offshore breakwaters can be built by laying a multiplicity of such funnel-shaped blocks into one or, usually, two or more superposed horizontal layers, with each block having its leg oriented downwardly. At least the lowermost layer of blocks are buried directly into the seabed, and the upper layer or layers of blocks are installed with or without use of a support structure serving to prop up each block.

Abstract: In an automatic tank filling installation, the duct for insertion in the filling orifice of the tank, e.g. mounted on a railway truck or road vehicle, is mounted for movement in the longitudinal direction of movement of the truck or vehicle, for movement in a direction transverse thereto and for pivotal movement about an axis parallel to the longitudinal direction to allow the axis of the pipe to be aligned with the axis of an off center filling orifice, means being provided for causing the pipe to pivot simultaneously with, and as a function of, movement of the pipe in the transverse direction.

Abstract: A process for manufacturing a heat-resistant composite sheet comprising applying a bonding agent with an added cross-linking agent on one of the facing surfaces to be adhered of a thermoplastic resin sheet and a polyolefin foam sheet. The two sheets are then placed one upon another through the bonding agent coated layer and are bonded together while heating the same and applying pressure thereto.

Abstract: A device for automatically changing the polarity of a direct current supply source for use in a cataphoresis apparatus comprises a switch for changing the polarity of migration current, a device for generating a functional signal in response to a detection of the finish or the beginning of the migration current, a signal processing device connected to the functional signal generator for processing the functional signal to drive the polarity change switch and a polarity changing device connected between the signal processing device and the polarity change switch for instructing polarity change of the migration current to the polarity change switch and for memorizing the changed polarity of the migration current in spite of switching on or off of a power supply source. The polarity changing device always changes the polarity of the migration current to a polarity opposite to the just before polarity every detection of the finishing or the beginning of the migration current.

Abstract: A vortex cleaner for separating fibrous suspensions into fractions, in particular for cleaning papermaking pulp suspensions from impurities as chips, shives, sand grains, metal particles, etc., comprises an elongate vortex chamber, which has a circular cross-section and which over part of its length tapers towards its one axial end. The larger end of this vortex chamber has at least one tangential inlet for the suspension to be treated and an axial accept outlet for a lighter fraction of the treated suspension. The smaller end of the vortex chamber has an axial reject outlet for a heavier fraction of the treated suspension. The tapering part of the vortex chamber has a boundary wall which consists of one or preferably two ledges, which face the larger end of the vortex chamber and extend helically with diminishing diameter towards the smaller end of the vortex chamber, and a sidewall interconnecting the consecutive convolutions of said ledge or ledges.

Abstract: An opto-electronic measuring apparatus, in particular for a projectile detonator, for the delivery of a signal upon the reaching of a predetermined distance between a moving body and a surface, whereby the measuring apparatus incorporates a transmitter emitting impulses which are rendered optical through a lens at a transmission frequency; and a receiver with a receiver-amplifier for receiving the portion of these optical impulses which are scattered back from the surface.

Abstract: A process for handwashing socks or stockings which utilizes a detergent composition having, as effective components, an ethylene oxide adduct of a secondary alcohol, a sulfuric ester salt of an ethylene oxide adduct of a secondary alcohol, and an amphoteric surfactant is described.

Abstract: A method for the recovery of crude petroleum from mineral oil deposits, utilizing hot water flooding or alkali containing hot water flooding is described.

Abstract: The majority of the impellers of a multistage turbocompressor are diagonal-flow or "mixed-flow" type impellers with exit flow angles which are increased from the initial stage impellers toward the final stage impellers, whereby the specific speed of each impeller falls with the optimal range for that impeller.

Abstract: An externally commutated compensation-type converter system comprises a control unit which connects a main and an additional bridge, each built around controlled semiconductor rectifiers. Shunt capacitors are coupled in parallel with respective a-c terminals of the main bridge and series capacitors are placed between respective a-c terminals of the main and the additional bridge. A smoothing reactor connects respective d-c terminals of the main and the additional bridge, said d-c terminals being arranged to interconnect one another. Terminals of the series capacitors, the a-c terminals of the main bridge and terminals of two respective shunt capacitors, which interconnect one another, are used to form common a-c terminals coupled to an a-c mains. According to the proposed method providing for forced commutation and blocking of the rectifiers of the converter system, the shunt and series capacitors, after they have been charged, are coupled to the rectifiers being blocked.

Abstract: A power transmission apparatus of the type having a crankshaft of an internal combustion engine and an intermediate driving shaft to be driven by the crankshaft. Input and output shafts of a gear transmission to be driven by the driving shaft are so provided in an outer surrounding machine casing as to be arranged in parallel rows to one another. The four shafts are positioned, at their axial lines, in a common plane, and the machine casing is so constructed as to be divisible at that plane into upper and lower half portions.