Abstract: A carding element in which a tooth set uses steel and is arranged on a base plate. The tooth set is made of steel-bound hard material. This material, furthermore, contain titanium carbide up to substantially 50% by volume. The steel-bound hard material may also be used for the tooth set of a fixed cover, or of a comb segment located underneath a taker in.

Abstract: The apparatus comprises a milling machine including a heated rotatable drum connected to means for supplying coarsely crushed coal and preheated oil to the drum wherein the coal becomes finely ground and homogeneously mixed with the oil, and having a discharge duct rotatably connected to the drum and slidably connected to a stationary discharge tower in which the coal/oil slurry is separated from water evaporated from the coal during milling.

Abstract: When exhaust gas from a coal-burning boiler containing NO.sub.x as well as SO.sub.x is subjected to NO.sub.x removal by catalytic reduction of the NO.sub.x with ammonia and the coal ashes contained in the gas are separated, the coal ashes are contaminated by a certain quantity of ammonium compounds produced from the SO.sub.x and the ammonia excessively used. The ammonium compounds in the coal ashes are decomposed into ammonia and a sulfur compound by heating by the hot gas at a temperature in the restricted range, viz. 350.degree. to 700.degree. C., thereby to release ammonia into the gas preferentially to the sulfur compound. The ammonia thus released is recycled to the NO.sub.x removal step.

Abstract: An underwater paving machine for making fillings on the river beds is provided comprising a boat having a platform carrying a working structure comprising a pair of uprights supporting a horizontal shaft driven by a motor and carrying a number of spools on which rolls of cables or wires are wound. Said cables or wires are intended to carry blocks made of vibrated concrete and initially supported by a cage intended to be anchored on the river bed. The cage with the blocks are sinked into the water so as to form the fillings on the river bed. The tension of cables or wires is controlled by independent clutches associated to the spools. The blocks are coupled to each other by fastening means both in horizontal and vertical directions. In the area of the boat mounting the working structure an enlargement of the hull is provided intended to increase the buoyancy of the boat. A pair of lateral tanks serve to stabilize the boat on the sides thereof.

Abstract: The invention relates to a conduction pump for liquid metal.This pump comprises a magnetic circuit for creating a magnetic field in the stream of liquid metal circulating in a pipe, and a turn, filled with liquid metal, for supplying an electric current perpendicular to the magnetic field in the stream of liquid metal. The turn is arranged at the level of the gap zone of the magnetic circuit, perpendicular to the field in this gap, and at least partially surrounds the magnetic circuit so that the electric current is generated in the turn by the circuit. The turn is at least partially formed by the circulation pipe itself.The invention is applied in particular to the conveying of liquid aluminium by pumping.

Abstract: A partition-wall arrangement comprises a hollow post which is stationary mountable on that corner of a bath or shower tub which is diagonally opposed to a room corner in which the tub is installed. The hollow post is mounted by clamping it between the tub and the room ceiling. The hollow post contains one or a pair of winding shafts at which a pair of flexible partition-walls is wound up, which can be extracted against the effect of a return spring respectively through a vertical slit or a pair of slits into directions which form a right angle with one another and can be connected in the extracted positions at opposed room walls.

Abstract: A multipurpose floating structure comprises a large number of flotation units joined together in a regular reticulated pattern in one or more horizontal tiers, each flotation unit comprising: a square plate; a watertight can structure of inverted conical shape fixed at its base to the lower surface of the square plate; a vertical leg column fixed at its upper end to the vertex part of the can structure; a concrete weight disposed around and supported on the leg column; and connecting fittings for connecting the corners of the square plates of four adjacent flotation units at their common meeting point.

Abstract: A dialyzer apparatus in an artificial kidney system comprising a dialyzer main body having therein a blood flow passage and a dialyzing liquid flow passage separated by a dialyzing membrane. Integrally formed at the front surface of the main body is an air removal chamber which is in communication with the outlet of the blood flow passage and a liquid level adjusting chamber which is in communication with the air removal chamber. A pipe passage extends downwards from the air removal chamber for return of purified blood to the patient. The main body of the dialyzer is also integrally formed at its rear surface with a pair of further pipe passages which are respectively in communication with the inlet and outlet of the dialyzing liquid flow passage. A bottom cover member has a pair of medical liquid chambers integrally formed therewith and the bottom cover is mounted on and connected to the lower surface of the main body.

Abstract: A trouble diagnosing device of a control circuit for receiving, as input signals, signals containing information on controlled means and producing, as output signals, control signals for controlling the controlled means on the basis of the input signals, includes modulator means for modulating the input signals by means of a modulation signal having a trouble diagnosing discrimination waveform, and a trouble diagnosing circuit for producing an output signal indicating trouble in the control circuit system when the output signals of said control circuit systems produced upon receipt of the input signals modulated by the modulator means, contain an abnormal signal.In an embodiment of the invention, the modulator means modulate input signals by means of a trouble diagnosing modulation signal having such a small pulse width that electromagnetic actuators for controlling the controlled means are not able to respond thereto.

Abstract: An apparatus for cleaning small diameter metal wires employing two sets of brushes arranged in pairs on the sides of the wire advancing into the apparatus. The respective sets of brushes each are at perpendicular planes to one another and define an enclosed sector of 180.degree. of the wire to be treated. The tips of the brushes co-act with the advancing wire to cause cleaning. A counterweight pressure assembly urges the brushes against the wire without promoting spreading of the wire elements of the brushes as the brushes wear out.

Abstract: A magnetic brush developing device for developing an electrostatic charge image comprises a hopper for containing toners to be supplemented, a toner supplying roller rotatably mounted in a lower opening of the hopper and provided at its periphery with a longitudinal recess for receiving therein a given amount of toners from the hopper and means for limiting a length of the opening, through which toners are supplemented, along an axis of the roller, so as to make the length of the opening smaller than a maximum width of an electrostatic charge image to be developed by the developing device.

Abstract: A carburetor herein disclosed includes a low speed spray aperture defined on the side wall of an intake duct at a position opposed to a throttle valve inside the intake duct and feeding a fuel for low speed operation in accordance with the degree of opening of the throttle valve, and a by-pass passage having, on the side wall portion of the intake duct, an intake port and a controlling stream spray port whereby the former is defined on the upstream side of the throttle valve and the latter, on the downstream side of the throttle valve. The by-pass passage incorporates therein a controlling nozzle which sprays a jet stream towards the controlling steam spray port. In accordance with an embodiment of the invention, an acceleration nozzle is additionally disposed in the by-pass passage, the nozzle opening into the by-pass passage on the upstream side of the controlling nozzle and spraying an acceleration fuel into the by-pass passage.

Abstract: The invention finds application in the manufacture of working blades of a length exceeding that of the blades known so far, without infringing the limitations issuing from flow considerations and strength of the rotor. The blade comprises two different sheets deliminated by a suitably selected intermediary cross section of the blade. Each of the sheets is formed according to a different law dictated by strength and flow considerations. Beginning from the cross-section which delimits the sheets, the sheets are twisted in opposite directions.

Abstract: After physical removal of the majority of the oil on the surface of the water, the thin film remaining is treated with microbial metabolites which reduce the surface and interface tension and cause the formation of oil agglomerates. These agglomerates may be drawn off or left to be degraded by hydrocarbon-degrading microorganisms normally present in the sea water or added thereto.

Abstract: A method for breaking direct current, whereby an initial gas pressure, corresponding to the working conditions of a stationary current channel, is set in a gas discharge device, whereafter direct current is passed through the gas discharge device, and the density of the gas filling said gas discharge device is simultaneously reduced over the entire volume of the gas discharge device to a critical value which causes a breaking of the direct current. The d.c. breaker for effecting this method is built around a gas discharge device comprising an anode, a cathode, and intermediate electrodes interposed between said anode and cathode. The cathode is formed by an end emitter, a cone-shaped reflector with the cone's apex facing the end emitter, and two coaxial cylinders encompassing the end emitter and reflector.

Abstract: An antiskid brake device comprising a reference wheel speed signal setting device for setting the slip rate of the wheel so as to have a relatively small value when the value of the vehicle speed signal is large and to have a relatively large value when the value of the vehicle speed signal is small, the thus set slip rate of the wheel being added to the vehicle speed signal thereby setting the reference wheel speed signal. The reference wheel speed signal setting device comprises an input section for receiving the vehicle speed signal, a logical operation section for setting such slip rate of the wheel and adding the slip rate to the vehicle speed signal for determination of the reference wheel speed signal, and an output section for delivering the reference wheel speed signal. The operational section comprises an operational amplifier, division circuits including resistors, and gain control circuits including resistors and a diode.

Abstract: A bed of solid particles on an air distributor of a fluidized-bed furnace is fluidized by upward currents of air fed through the distributor. A fuel to be burnt in the fluidized bed is premixed with carrying air, and the fuel-air mixture is fed into the bed from a burner extending upwardly through the distributor. For utmost combustion efficiency the ratio by mass of the feed rate of the fuel-carrying air to the sum of the feed rates of the fuel-carrying air and the bed-fluidizing air is adjusted by flow control valves so as to be in the range of from about 0.2 to 0.6. The head of the burner is of such construction that the fuel-air mixture is ejected therefrom in the form of swirling jets. The burner head is usually located about 50 millimeters above the distributor.

Abstract: A corona charger for improving efficiency of utilizing the corona charging current and being able to effect high speed and uniform charging by providing an additional grid electrode applied with a bias voltage between the other grid electrode so as to accelerate the passing of the corona ion stream through openings of the grid electrodes.

Abstract: A chuck having a plurality of elastic and resilient compressible segments which have the general shape of a strip which, in longitudinal section, have a zig-zag configuration with flattened tops and bottoms, with upper and lower recesses which are filled with an elastomeric material.