Abstract: A crushed raw coal washing plant using a plurality of deflector-fitted centrifugal cyclones to produce a washed and dried mixture of clean coarse and fine coal, and fine coal alone, with means to remove refuse and means to recycle clean fine coal slurry by-product into the raw crushed coal inlet. Each centrifugal cyclone of said system is fitted with an inlet line deflector and equalizer means to create laminar flow and gravity separation whereby low density (1.6 or less) washed coal escapes through a first outlet at the top and refuse drains out of a second outlet at the bottom of said cyclone.

Abstract: Dispensing means for dosing a liquid fuel tank of an internal combustion engine with a unit dosage of colloidal magnesium metal dispersed in kerosene comprising a container, cap metering valve at the container bottom and a delivery line from the outlet of the valve between the fuel pump and the carburetor or air injector.

Abstract: In the case of a sponge for medicinal purposes, the gauze fabric cut has been folded into a small ball in the inside of which lie the edges of the cuts.In order to achieve a machine made, homogeneously structured sponge absorbing equally well at every place without lint or projecting ends of threads, two gauze fabric cuts (2, 3) of equal length have been placed one on top of the other, whereby the inside lying cut (3) has a width of about twice and the outside lying cut (2) has a width of at least four times the diameter of the sponge. The cuts (2, 3) are folded to a pouch in the case of which the edges of the cut turned inside out, are framed by a rubber ring (5). At the same time, the inside lying cut (3) is turned inside out only with its longitudinal ends through the rubber ring (5).

Abstract: A fork accessory for winding spaghetti on a fork comprising a generally rectangular base having a thickened portion at one edge defining a cylindrical recess and including clamping means to detachably secure said base to a dish on which the spaghetti is served. A collar is fitted with inwardly projecting pins which is rotatably supported in the well of said recess. A short shaft passes through the base and connects the bottom of the collar to a hand wheel below the collar and well. A fork, which is filled with spaghetti, is inserted into the collar, the hand wheel rotated, and the pins rotate the fork. A guiding wall vertically projecting from a center edge of the collar serves to neatly wrap the spaghetti around the fork which now needs only to be lifted to the mouth for eating.

Abstract: A skin structure in a doll providing simulated body temperature by fluid circulation comprised of two layers separated by studs forming passageways between said layers for the circulation of fluid of the desired temperature to impart on the surface of the doll a temperature approximating body temperature. The controlled temperature fluid may be provided in a reservoir so that the fluid can be circulated to and from the skin structure. The outer skin layer is preferably resilient. The studs are appropriately spaced between the layers and separate said layers. Other creature representations may incorporate the novel spaced layer and stud passageway construction of the invention.

Abstract: An apparatus for producing preforms for the production of optical fibers by plasma coating and drawing. A plasma stream produced with the aid of a radio frequency generator is caused to successively pass through three zones in the first of which a mixture of fluidized powders of two materials of appropriate composition is injected and completely vaporized. In the second zone an oxidizing gas having a mixing action is introduced into the deeply cooled stream. The materials and gas react with each other to form microseeds. The powders contain high purity silicon and at least one doping element of the group comprising Al, Ge, B. Ti and Zr. In the third zone an inert gas is introduced and deposition of substance is effected on substrates suitably arranged with respect to the path followed by the plasma stream.

Abstract: Device enabling the direct measurement of the overall insulation level of an acoustic insulation medium with respect to a reference excitation noise signal when said medium is subject to an actual excitation noise signal deviating from the reference excitation noise signal. The device comprises two microphones receiving a first and a second alternating signal respectively representing the noise signal actually transmitted through the medium and the actual excitation noise signal and a read only memory storing spectral components of the reference excitation noise signal in a plurality of given spectral bands. The first and the second alternating signals are decomposed into alternating spectral components in these spectral bands and the alternating spectral components of the second signal are rectified in order to obtain rectified spectral components.

Abstract: An ultrasonic probe for measuring liquids at high temperature and under high pressure. The ultrasonic probe comprises a leak-tight protective sleeve which has an end face closed by a thin metallic wall. The protective sleeve contained internal elements which are in particular a transducing piezoelectric plate and a damping cylinder. The piezoelectric element has one face which is in mechanical and electrical contact with the internal face of the thin sleeve wall and the other face which is supported on a damping cylinder. The thin sleeve wall of the sleeve end face is constituted by a metallic layer obtained by cathodic sputtering.

Abstract: An unloading mechanism for a shelf storage system in which a load of goods is supported on a pallet which constitutes a unit load, the load and pallet resting on a mobile storage and transport unit which unit is subjected to the action of the unloading mechanism for removal from the storage pile. The unloading mechanism comprises a modified section of a trackway at the very end at a vertical stop where the unit load, with its four wheeled unit, is lifted by a lifting conveyer to elevate the front wheels of the four wheeled unit first over the stop and then over a cam which is hump shaped and facilitates the pulling of the wheeled unit to clear the front wheels. The lifting is done at the front by the lifting conveyer and done by the wheels engaging the hump shaped cams at the back. The load is then removed. A follow-up unit load of goods on a pallet and four wheeled transport unit moves down the inclined trackway to replace the unit load just removed.

Abstract: A digital multiplexing and demultiplexing system for time division multiplexing a number of incoming plesiosynchronous low rate component signals and a number of incoming plesiosynchronous intermediate rate component signals into an outgoing single high rate signal. A first multiplexing stage time stores and stuffs the low rate component signals and multiplexes them into synchronous intermediate rate signals. A second multiplexing stage stores and stuffs the plesiosynchronous and synchronous intermediate rate signals and multiplexes them into the outgoing high rate signal.

Abstract: A bottle cap which reliably seals a bottle at high and low temperatures and which nevertheless can easily be removed by hand without a tool. The cap is made of two parts: An outer cap member of hard plastic material and a sealing insert of soft plastic material. In the closed position the outer cap member is fixed against the inner sealing member by means of a detachable opening ring, which firmly holds the sealing insert clinging to the bottle opening.

Abstract: A video composite transmission system connecting a camera and a picture receiver of a picture transmitting device and a plurality of data terminals to a video switching network via an analog two path line transmitting an analog video composite signal. In the transmission part, it comprises means for shortening pulses of blanking and synchronizing the signal transmitted from the camera and thereby obtaining a blanking and synchronizing signal, in elongated back blanking porches of which are integrated and companded first digital multiplex data channels transmitted from first data terminals. Second digital multiplex data channels are also integrated and companded into the trace interval of each available black line of vertical blanking and synchronizing signal transmitted from camera.

Abstract: Photovoltaic cell comprising two heterojunctions between three component semiconductors Ga.sub.1-x AL.sub.x As with x varying from 0 to 0.9, GaAs, and Ge which have respective bandgaps of 0.66, 1.43 and 2.4 eV, lattice constants matching at 0.07% and expansion coefficients matching at 1.7%. The cell is mounted in a cell device comprising a parallelepipedal unit, a Fresnel lens, a tapering cavity within said unit, partially filled up with a lens shaped antireflecting transparent material and a radiator, said device forming a sunlight concentrator.

Abstract: The invention relates to apparatus for storing and transporting heavy elongated workpieces such as round steel, sectional steel, steel pipes and the like. The apparatus comprises at least two stock racks each of which is formed from two substantially U-shaped girders connected together. A carrying device is also provided for use with a crane in lifting and moving the racks.

Abstract: Capacitance measuring device for measuring a physical quantity proportional or inversely proportional to the capacitance X of a first capacitor. A oscillating circuit includes a second capacitor having a reference capacitance X.sub.E or the first capacitor during successive reference and measuring phases under control switching network respectively. A counter counts a predetermined oscillation pulse number N.sub.E during the reference phase and a oscillation pulse number N.sub.X during the measuring phase. The duration of two phases are equal or in a predetermined ratio R by means of a counter-down-counter which counts and down-counts the same number of clock pulses at least a predetermined frequency. The change of the counting to down-counting condition is controlled by the counter when its count is equal to N.sub.E. The stopping of the counter is controlled by the counter-down-counter when its count is equal to zero at the end of the measuring phase.

Abstract: A remote locating system for remote locating the pairs of regenerative repeaters of a bidirectional data transmission line which is interconnected between a monotoring station and a monitored station. The monitoring station comprises a first low frequency generator which generates a first low frequency signal on the forward line channel which is continuously transmitted in the forward direction from the monitoring station to the monotored station in response to the fault detection on the line and a second low frequency generator which generates a second low frequency signal on the backward line channel which is transmitted in the forward direction after the transmission beginning of the first signal. The second signal is modulated by successive pulses, each of which identifies a regenerative repeater pair.

Abstract: Guide for light or infrared wave beam in which a radial temperature gradient deflects towards the guide axis the light rays which tend to diverge therefrom. The isotherm pattern of two sets of four heater wires, each set being formed of pairs of wires diametrically opposite with respect to the guide axis, is calculated and it is shown that it comprises a particular isothermic curve which has the shape of a bean and separates the two sets of wires. The metal wall of the guide is given the shape of this particular isothermic curve and the set of heater wires outside this wall is omitted.

Abstract: This invention is directed to a system for the transportation and storage of heavy goods of bulky dimensions and, in particular, coiled metal trackway which, during manufacture, is formed in rolls and requires movement between fabricating stations and intermediate storage stations under conditions where high space storage is the preferred arrangement. High space storage areas having narrow sides but not directly interconnected and in abutting arrangement are located in equi-axial fashion along a central longitudinal transportation pathway having low level workshops adjoining this pathway. Also adjoining this central transportation pathway are manufacturing stations which are disposed in transverse relation to the central pathway. Overhead transportation trucks transfer bundles of metal sheets from high space storage to fabricating stations, including rolling mills and cutting machines, for forming the sheets and cutting into the final product in the form of bundles.

Abstract: Recursive digital filter deriving the samples of a filtered output signal at a present sampling instant from the samples of an input signal to be filtered at said present sampling instant and at two preceding consecutive sampling instants and from samples of said filtered output signal at said two preceding consecutive sampling instants.

Abstract: Audioconference system for conference connecting a plurality of groups of remotely located conferees, which comprises a loudspeaker assembly and a plurality of microphones respectively assigned to the conferees and grouped in pairs of microphones diametrically opposite with respect to the loudspeaker assembly. The output signals of the first microphones of the pairs are directly connected to a mixing circuit whereas the second microphones of the pairs are connected to this mixing circuit through a 180.degree. phase shifter. The signal components originating from the loudspeaker assembly and picked up by the microphones due to acoustical coupling between the loudspeaker assembly and the microphones are thus cancelled. Further the addresses of the conferees who are talking are derived from the detected voice signals and this detection is made through a pass-band filter.