Abstract: The invention relates to a method of rolling section billets in which billets interconnected by bridges are successively formed from a slab in a number of grooves defined by a plurality of transversely juxtaposed passes, with subsequent separation of billets from one another by effecting a relative displacement of adjacent billets by prevailingly acting with a groove on one of the sides of the adjacent billets at an angle other than 90.degree. to the roll axis when the bridge thickness becomes equal to 0.01-0.3 of the groove height.

Abstract: According to the invention, the polymer composition comprises 8 to 20 parts by weight of polyborsiloxane having a molecular weight of 2,000 to 5,000 and including structural units --BOSi-- --(CH.sub.3).sub.2 SiO-- with a B:Si molar ratio of 1:4 to 5, 40 to 90 parts by weight of polysiloxane rubber, 10 to 60 parts by weight of an organic polymer which may be polyolefins, copolymers of olefins and dienes, halogenated polyolefins, and halogenated copolymers of olefins and dienes, taken separately or in combination with one another, 2 to 10 parts by weight of branched polyorganosiloxane having a molecular weight of 2,000 to 5,000, of the general formula: ##STR1## wherein: R=CH.sub.3, C.sub.6 H.sub.5, a=43 to 50 mole %, b=0 to 2 mole %, c=50 to 55 mole %, as well as 10 to 25 parts by weight of silicon dioxide, and 5 to 10 parts by weight of a variable valency metal oxide.

Abstract: The proposed method of testing objects for random actions thereon consists of recording random actions to which an object is subjected in the course of operation, determining the characteristics of said random actions, reproducing said random actions as a stimulating random pulse process which is a train of pulses of different shapes of a selected combination of pulse shapes, forming statistically independent random parameters of pulses, analyzing the characteristics of the random actions being reproduced and the response of the object to these random actions, and correcting the characteristics of the simulating random pulse process by varying its probability characteristics. The proposed digital simulator-computer system comprises a control computer hooked via an interface unit to main and auxiliary forward and feedback channels, and a test bed connected via first and second distribution devices, respectively, to the main and auxiliary forward channels and the main and auxiliary feedback channels.

Abstract: A method of assembling a stator core of an electric machine inside the housing thereof comprises securing resilient coupling ribs with their resilient portions to the housing, the resilient portions of the ribs being previously urged against the supporting portion of the ribs up to an elastic deformation state by means of detachable clamping members, assembling core segments on the core supporting portions of the resilient coupling ribs, compressing the core segments, securing the core under compression to the ribs, and removing of the detachable clamping members when the core is secured to the resilient coupling ribs.

Abstract: The present invention relates to a roll assembly comprising grooved rolls. A neck of each roll is provided with a thrust shoulder placed in a thrust hydrostatic bearing mounted in a chock secured to a housing. The bearing comprises thrust disks each arranged on both end faces of the shoulders substantially parallel thereto. The sides of the disks facing the ends of each shoulder are fitted with hydrostatic pockets communicating with a fluid source. The fluid source, designed for adjustable delivery of fluid, communicates with the hydrostatic pockets of one of the thrust disks of a roll and of the other thrust disk facing it. There is another fluid source with adjustable delivery of fluid communicating with the hydrostatic pockets of the other thrust disks. This enables, by varying the deliveries of the fluid sources, the mutual disposition of the shoulders to be adjusted relative to the thrust disks and thereby permits control over the mutual arrangement of the rolls directly in the course of rolling.

Abstract: The method resides in feeding a billet in portions into pilger rolls to be worked therein on a mandrel. The billet being positively turned about the rolling axis both in one direction and in the opposite direction in the course of deformation thereof and in the off-contact time when the billet is not engaged by the rolls.

Abstract: The proposed digital control device controls a d.c. thyristor-pulse converter and comprises a decoder connected to a clock pulse counter and a reversible counter. The device further includes a control unit, a matching unit containing four AND gates and a sign flip-flop, and a switching unit having six AND gates and two flip-flops. A first AND gate of the switching unit is connected to a control electrode of a first thyristor, a second AND gate of the switching unit is connected to a control electrode of a second thyristor, a third AND gate is connected to a control electrode of a third thyristor, a fourth AND gate is connected to control electrode of a fourth thyristor, a fifth AND gate is connected to the control electrodes of the first and third thyristors, and a sixth AND gate is connected to the control electrodes of the second and fourth thyristors. The clock pulse counter and the AND gates are connected to the flip-flops of the switching unit.

Abstract: A device for separating heavier inpurities from solid bodies in a fluid flow comprising a trough-like casing accommodating a horizontal rotatable drum with a screen cylindrical side wall and groove-like elements move the impurities in the rotating drum towards an appliance intended to separate, receive and unload the impurities. The appliance is secured to the drum at the inlet for the fluid and the elements for moving the impurities are made as grooves arranged spirally in the side wall of the drum throughout its length. Each groove has a cylindrical side wall whose external surface protrudes beyond the external surface of the side wall of the drum, and two face walls are arranged perpendicularly to the cylindrical side wall.

Abstract: A household cereal mill is constructed wth the axis of symmetry of coaxial stationary and rotatable millstones in a horizontal alignment. The driveshaft for the rotating millstone passes through the center of the stationary millstone, and the bearing bushings supporting the driveshaft are inserted into the fixed or stationary millstone. Grain is fed into the conically expanding milling gap between the millstones from above, through a supply channel passing through the matrix of the stationary millstone at a location above the intersection of the apex of the milling gap cone and the centerline of the driveshaft. A spiral spring is employed as a conveyor worm for feed kernels, and is affixed on the outer surface of the driveshaft in a position underlying the supply passage.

Abstract: The device for injection of medicinal preparations, according to the invention, comprises a changeable isolated capsule, an injection needle, and a drive to move pistons, made in the form of a spring-loaded pusher located inside the housing which supports the changeable isolated capsule. The housing has a stopping member to arrest said spring-loaded pusher. Inside said isolated capsule, installed coaxially therewith and with each other are a main piston closed by a partition on the side facing the chamber holding the first medicinal preparation and an additional piston. The partition is movable. The injection needle is installed inside the isolated capsule, fixed on the additional piston, and it in use passes through said partition, and has an aperture in the zone of the partition on the side of the chamber holding the first medicinal preparation. The additional piston is located in the channel of the main piston and limits the chamber for the second medicinal preparation.

Abstract: The device proposed herein incorporates the following components located on both sides of the roll mill stand: hydraulic dynamometers for absorbing the rolling force; hydraulic cylinders for creating and exerting the adjusting force; and valves for oil pressure control in the hydraulic cylinder interior. The hydraulic dynamometers are situated between the supports of one of the rolls and the roll mill stand housing and the hydraulic cylinders are interposed between the supports of the other roll and the roll mill stand housing.The interior spaces of said cylinder and the dynamometer communicate with pumping units that deliver oil thereto so as to build up a pressure in the spaces which is in excess of the rolling force. The valves regulate the pressure effective in the hydraulic cylinder interior in direct proportion to the rolling force and the deforming force of the elastic members of the device.

Abstract: A door mat formed of a flexible, waterproof material comprising a lower section and an upper section hingedly connected to the lower section at one end thereof. In this manner, the upper section may be lifted from the lower section for the placement between the sections of a newspaper or other article. The upper section may then be lowered to cover, protect and retain the newspaper or other article between it and the lower section.

Abstract: A method of rolling section billets wherein a plurality of billets transversely interconnected by bridges are successively simultaneously formed from a slab in a number of grooves defined by a plurality of transversely juxtaposed grooves. The forming is effected in two stages by reducing the value of longitudinal tensile stresses in central portions of the billets at one stage by changing the position of zones of prevailing reduction transversely of the billets, with the subsequent separation of billets from one another.

Abstract: An electromagnetic pilot type valve having at least one auxiliary pilot valve disposed and operatively connected between the pilot valve and the main valve. The auxiliary valve is operated in response to the pilot valve to operate the main valve. With this construction a main valve body of a relatively large diameter can be operated with a small electromagnetic pilot valve, so that the whole construction of the valve can be compactly made.

Abstract: Disclosure is made of a digital control device intended to control thyristor-pulse d.c. regulators and comprising a master oscillator whose output is connected to an input of a clock pulse counter. A multidigit logic output of the clock pulse counter is connected to two control channels, each comprising in series a matching decoder, a reversible counter, a distributor, a comparator, a digital-analog converter, a coder, and a control decoder. Multidigit inputs of the control decoders of each control channels are connected to a multidigit output of a binary counter. The binary counter has its single-digit input and its multidigit input connected to an output of a pulser and multidigit output of a control unit, respectively. An input of the control unit is connected to a velocity transducer, and its reset output is connected to reset inputs of the master oscillator, a clock pulse generator, the clock pulse counter, the reversible counters, the pulser, and a voltage transducer.

Abstract: The proposed simulator of a target which moves relative to a moving object comprises a synchronization means to form signals corresponding to the variable azimuth of the direction of space, scanned by radar installed on the object and to the variable distance of scanned space points; and a group of transducers to form signals which carry information on the course and speed of the object. The transducers are connected to a channel for forming a signal to simulate the target. The channel comprises a group of transducers to form signals carrying information on the true course and actual speed of the target, and a computer to form signals carrying information on the azimuth of the target and the distance between the target and the object. The channel further includes logical circuits to form pulse signals whose timing in relation to respective reference pulses corresponds to the azimuth of and the distance to the target.

Abstract: A device for digital control of a polyphase thyristor-pulse converter comprises a master oscillator connected to a clock pulse counter. The clock pulse counter is connected to the power thyristors of the thyristor-pulse converter through a decoder for time-constant pulse trains. The device also comprises a control unit connected to a bidirectional pulse counter. Furthermore, the device comprises decoders for time-shifted pulse trains, each decoder having inputs connected to the logical outputs of the clock pulse counter and having outputs connected to the other power thyristors of the thyristor-pulse converter.

Abstract: A tool for use in a moulding machine suited to introducing plastic material under pressure into the mould, comprises a two part mould defining a mould cavity, the mould cavity including a recess formed in one of the parts. The other part closes the recess in use and has slidably mounted therein at least one support member for supporting a core insert in the mould cavity. The or each support member being moveable between a first position in which the member projects into the mould cavity to support the core insert at the commencement of a moulding operation and a second position in which the member is at least partially retracted from the mould cavity to disengage from the core insert. Thus when material is introduced into the mould cavity the or each support member is urged from the first to the second position by pressure of the material after the core insert has been enveloped in the material.

Abstract: The present invention relates to a method for producing foam plastics and a device for effecting same. The method resides in foaming with continuous and proportioned injection of all components successively in two stages, mixing water, resin and a foaming agent under pressure with compressed air to obtain homogenized foam with a foam coefficient of 15 to 20, with subsequent injection thereinto of a curing catalyst together with compressed air. The device for carrying out the proposed method comprises proportioners the inlets whereof are connected to tanks each being intended for a respective component, as well as curing and foaming chambers communicating through two closely adjacent coaxially arranged pipes forming an annulus, the outer pipe being provided with diametrically oposite connections for letting into the annulus the catalyst and compressed air.

Abstract: A tent peg mallet and extracting tool is provided which includes a variety of functional portions to perform operations on wooden, metal, or plastic tent pegs or the like. The tool includes a mallet portion having a face for pounding wooden or plastic pegs without damage, a rigid plate secured to the mallet portion for pounding metal pegs, a tab extending from the end of the mallet portion for digging or prying to loosen the pegs, and a peg removal loop secured to the mallet portion to facilitate peg pulling.