Abstract: The apparatus comprises a housing mounted on a framework and accommodating therein an annular inductor encircling a mixing chamber and adapted to create a rotating electromagnetic field in said chamber. Ferromagnetic particles are present in the mixing chamber. The mixing chamber communicates from above with a charging device including a feed screw continuously supplying solid components of the suspension directly into the chamber; liquid components of the suspension are fed into the chamber through the hollow shaft of the feed screw. Connected from below to the mixing chamber is one end of an S-shaped conduit acting as a discharge device. The apparatus provides rapid and effective mixing of the components of the suspension.

Abstract: A sheet mill table roll in the form of a cylindrical hollow body having hubs therewith fixed therewith on half-axles mounted in table bearing supports. Each end face of the cylindrical hollow body has a coaxially mounted cover with a central port. The diameter of the central port is essentially smaller than the outside diameter of the hub which is fitted with through channels running at its periphery. The covers form with said half-axles annular slots for the passage of cooling fluid through the interior of the roll body.

Abstract: The present invention relates to ore lumping processes in ferrous metallurgy and can be most efficiently utilized in non-roasting methods of producing pellets from iron ore concentrates with moisture content of 7 to 15%.The given method of producing pellets provides for preliminary preparation of a mixture from ore concentrate with particle size less than 0.83 mm and binding material in the form of calcium oxide and magnesium oxide followed by hydration of this mixture to produce a hydrated mixture, thereafter this hydrated mixture is introduced into ore concentrate to produce a homogeneous mixture containing 4 to 15 weight percent of binding material with the following pelletizing of the homogeneous mixture to produce pellets by curing them in the medium of saturated steam at a temperature of 120-225.degree. C during a time period of 1 to 12 hours.

Abstract: A blowout preventer ram assembly adapted to seal the mouth of the hole of oil and gas wells in the process of their drilling. The ram assembly incorporates two rams, each of which comprises a ram rubber constituted by two arcuate members of larger and smaller radii, and a ram block provided with a projection is placed in the gap therebetween. The ram rubber is reinforced on the end faces by control members each of which consists of two parts. The first part is defined by two rigidly interconnected plates arranged in the arcuate member of the ram rubber of a smaller radius. One face of each plate has a radius corresponding to that of the largest pipe of the set of pipes to be sealed, while a second face is arranged parallel to the end face of the ram rubber, and a third face is arranged at an angle to the first face and is in contact with the ram block.

Abstract: A powder electrode strip for surfacing with a wear-resistant alloy consisting of steel shell filled with a powdered mixture containing the following components in appropriate proportions to the total weight of the powder electrode strip: from 12 to 13 wt.% metallic chromium; from 20 to 22 wt.% iron powder; from 0.2 to 0.3 wt.% graphite; from 1 to 1.2 wt.% ferrochromium with a 0.6-0.8 wt.% carbon content; crystalline silicon or silicocalcium evaluated in terms of silicon at 0.6 to 0.8 wt.%; from 14 to 16 wt.% metallic manganese; from 2 to 3 wt.% titanium dioxide, from 0.6 to 1 wt.% titanium powder, and the balance is now represented by the steel shell.

Abstract: A method of smokeless charging of coke ovens with coal charge in which coal is poured into each chamber of the coke oven in two stages: firstly coal charge is loaded into the oven chamber through extreme holes and charging gases liberated during said operation are discharged simultaneously, the loaded coal charge is held within the oven, after which the latter is replenished to capacity with coal charge through central holes, charging of the oven which is next in terms of the charging schedule and replenishing of the preceding one being effected simultaneously.

Abstract: According to the invention, a device for multiplying numbers represented in the system of residual classes comprises an add-shift unit having its output connected to a product bus, while its inputs are coupled to a multiplicand reducer, a multiplier generator and an inverter, an input of said inverter being connected to the output of the multiplier generator and to one input of the multiplicand reducer, and an input of said inverter being connected to a multiplicand bus, the input of the multiplier generator being connected to a multiplier bus.

Abstract: Installed co-axially in the valve body, along its axis, are two identical sockets with central holes in their bottoms, the holes forming seats closed by closing elements. The sockets are provided with annular seals which divide the valve body into three chambers, viz., an inlet chamber which receives the fluid under pressure, an outlet chamber communicating with the output element and a return chamber for draining the fluid from the output element back into the system. The sockets can be installed with their bottoms directed either towards each other to form a "normally-open" valve or away from each other to form a "normally-closed" valve. The closing elements are accommodated in cages and operated by a drive such as an electromagnetic drive. The critical limits of valve operation are set by springs.

Abstract: Method for the dehydrogenation or dehydrocyclization of paraffins, for dehydrogenation of olefins with from 2 to 20 carbon atoms, and for hydrodealkylation of naphthalene homologs at temperatures ranging from 300.degree. to 650.degree. C on a catalyst comprising a palladium base alloy containing rhenium, tungsten or a combination of tungsten and ruthenium.The method can find application in the production of monomers, such as isoprene, for synthetic materials, pharmaceuticals, in processing petroleum hydrocarbons and natural gas.

Abstract: Semiconductor material consists of polyvinyldimethylsiloxane rubber, filler material conducting electricity, and a curing agent. Said curing agent is dialkylaminomethyltrialkoxysilane. The components of the proposed material are taken in the following proportion, in part by weight:Polyvinyldimethylsiloxane rubber: 100Filler conducting electricity: 20-100Dialkylaminomethyl trialkoxysilane: 0.5-4.

Abstract: A method of processing high-boiling byproducts of isoprene production obtained at the first stage of isoprene production by the dioxane method into isoprene, isobutylene and formaldehyde which comprises the catalytic splitting of said products in the vapor phase in the presence of water with a weight ratio therebetween of 1:1/2, respectively, at 250-290.degree. C over aluminum oxide as catalyst. The resulting vapor mixture is catalytically split at 315.degree.-360.degree. C over calcium-phosphate catalyst with the formation of a reaction mixture containing isoprene, isobutylene and formaldehyde.

Abstract: An apparatus for making cathode ray tube screens with contoured fixtures comprises an automatic press having a rotary table with moulds radially fixed thereto, as well as a mechanism for moulding the fixtures. This mechanism has a vertically and horizontally displaceable frame carrying heaters and male dies. In operation, the frame is introduced into the mould with a screen blank and then is placed, in turn, in two locked positions in which the screen boards heating and fixture moulding, respectively, are effected.

Abstract: The herein proposed fast nuclear reactor comprises a vessel, a liquid metal coolant filling said vessel, the side wall of which is cylindrical in shape and has its axis disposed in a horizontal plane. The vessel accommodates a core and heat exchangers with said liquid-metal coolant being passed therethrough by means of forced circulation thereof. The space above the coolant level is occupied by an inert gaseous medium, with the coolant contacting said medium in pipe branches penetrating the side wall of the vessel.

Abstract: Method for the dehydrogenation or dehydrocyclization of paraffins, for dehydrogenation of olefins with from 2 to 20 carbon atoms, and for hydrodealkylation of naphthalene homologs at temperatures ranging from 300.degree. to 650.degree. C a catalyst comprising a palladium base alloy containing rhenium, tungsten or a combination of tungsten and ruthenium.The method can find application in the production of monomers, such as isoprene, for synthetic materials, pharmaceuticals, in processing petroleum hydrocarbons and natural gas.

Abstract: A method of synthesizing metal chromites comprising melting metal oxides including chromium oxide in an equimolar ratio. The oxides are melted under the action of a high-frequency electric field with the addition to the metal oxides of an electrically conductive material having an electric resistivity of no more than 10 Ohm.cm at 20.degree. C and in an amount of at least 0.05% by weight.

Abstract: An apparatus for continuous winding of filament on spools comprises a winder means including pairs of fixed and movable centers and a means for feeding spools to and removing them from the centers which is in force transmitting connection with the winder means and has a carriage mounted in guides which are arranged under the centers and extend normally thereto. The carriage is adapted to carry a spool and lift it up to the centers, as well as to remove a spool from the centers due to the provision of a force transmitting connection between each of the movable centers and the carriage. Thus an opportunity is provided for enabling a complete manufacturing line resulting in an improved productivity of the apparatus.

Abstract: A matrix of a heat-resistant material with a filler of refractory oxides of metals contained in the matrix in the form of ground monocrystals.

Abstract: A hydrocarbon such as cyclohexane is passed at a temperature of about 330.degree.-575.degree. C over a catalyst to effect dehydrogenation of the hydrocarbon, the catalyst being in the form of a membrane of an alloy of 90-98% palladium and 2-10% by weight of ruthenium.

Abstract: The feed system of a coal getting combine, which works with a face conveyor, comprises: a traction device located on the combine and having a cylinder-shaped sprocket on the side surface of which a circular spherical-shaped recess is provided, slots being made on both inner sides of the spherical recess, said slots having an involute-spherical surface. Arranged lengthwise of the conveyor is a longitudinally traversable guide bar secured at the ends of the conveyor and composed of a number of separate tubular sections articulated together and provided with open-end holes arranged square with the longitudinal axis of said holes.

Abstract: An electric hammer comprising a housing accommodating a stator, a hammer piston reciprocably mounted in the stator, and a shock absorber including a resilient member and an intermediate member disposed between the hammer piston and the resilient member, the mass of the intermediate member being greater than that of the hammer piston.