FIELD: mechanical engineering. SUBSTANCE: method requires use of block of curvilinear surface mounted for radial displacement. Curvilinear surface of block is facing peripheral surface of grinding wheel, with V-shaped clearance formed between the surfaces. Cutting fluid is supplied to clearance through nozzle, and value of cutting fluid hydrodynamic pressure is measured. Curvature radius of block ...

FIELD: mechanical engineering. SUBSTANCE: device has body and turning platform with axle secured on it by means of two cover-plates. Axle rests on bearings positioned in body. Plunger hydraulic cylinder with return spring is arranged in recess of body. Adjustable stop is screwed into threaded hole of body. Novelty in device is in that groove is made in body along axis of hydraulic cylinder recess,...

FIELD: food industry; packing. SUBSTANCE: invention relates to packing devices for continuous production of aseptically sealed packs of food products from pipe made of packing material and filled with food product and fed in vertical direction. Device 1 has first and second chain conveyers 10, 11. Conveyers 12 are provided with several clamps 12 and several counterclamps 13 engaging with pipe for ...

FIELD: metal coatings. SUBSTANCE: invention relates to technology of deposition of metal coatings on surfaces of a variety of materials (powders and substrates), including dielectrics, semiconductors, and metals, and can be, for instance, used for metallization of abrasive grains, for applying metal coating on the surfaces of ceramics, to manufacture metal-ceramics-type composites, and also in ele...

FIELD: wind motors; creation of torque and transmission of this torque to power takeoff consumer. SUBSTANCE: windmill includes wind tunnel with turbine arranged inside it; turbine is formed by blades and is kinematically linked with power takeoff device. Turbine has form of truncated cone formed by continuous lesser base and ring- shaped larger base fastened together by means of blades; one longit...

FIELD: wind power engineering. SUBSTANCE: power unit consists of round body made in form of torus consisting of at least three sections; each section includes fan and three generators with impeller. Stable power of unit is obtained due to structural features which ensure smoothing of air flow at any time and at section of unit. EFFECT: enhanced efficiency due to change of impeller profile and due ...

A formable biaxially-oriented polyester film has a difference of not more than about 0.007 between the maximum and minimum values of face orientation coefficient as determined in a 20 square cm region of the film, and an average face orientation coefficient of about 0.11 to 0.15 as determined in such film region.

FIELD: chemical engineering. SUBSTANCE: invention, in particular, relates to preparing polytetrafluoroethylene from wet polytetrafluoroethylene powder containing lubricant homogeneously dispersed therein with lesser number of required operations. Process involves following steps: adding lubricant to aqueous polytetrafluoroethylene dispersion associated with juice coagulation of polytetrafluoroethy...

This invention pertains to the building and construction industry, particularly to the mixtures of concrete and constructions made from them. It belongs especially to the methods of producing self-carried architectural formations. The goal of the invention is to arise quality grade of self-carried architectural formations by improving surface-smoothness as well as by improving hardness and cold-re...

A drilling rig 10 supports a drill string 11 within a borehole 12. An acoustic receiver 14 is associated with a drill bit 13 connected to the end of the drill string 11. An acoustic source 16, such as an airgun, is located at the earth's surface 17 some distance from the rig 10. In operation, the acoustic source 16 is controlled to transmit an acoustic pulse downwards into the rock formations surr...

The invention provides a system (10) for treatment and purification of domestic household effluent, and for the elimination within said system of organic solid wastes, comprising means (12, 14) for separately collecting first and second constituents of the sewage of a domestic residential unit, lavatory sewage comprising said first sewage constituent, and bath, shower, wash basin, laundry, kitchen...

FIELD: manufacture of heat- insulating materials such as wool used in building structures and for heat insulation of various installations. SUBSTANCE: heat-insulating material comprises fibrous component, antiproofing compound and antiseptic. Fibrous component is natural wood fiber Heat-insulating material comprises, wt.%: antiproofing compound, 10.5-11.5; antiseptic 5.5-6.5: and wood fiber, the b...

A process for treating particles comprising the steps of: (i) contacting the particles with a compound of Formula I: (see formula I) wherein at least one of R1, R2 and R3 are hydroxyl or hydrolysable groups, (ii) contacting the particles with a compound of Formula II: (see formula II) wherein R4 is a C1-C40 alkylene group, t is 0 or 1 and X is an anion.

FIELD: building materials industry, more particularly preparation of solutions and concretes at lower temperatures. SUBSTANCE: comprises cement, KMnO4, ratios of components being as follows, wt.%: portland cement, 99.7-99.9: KMnO4, 0.1-0.3. EFFECT: greater strength during solidification at lower temperatures and antibacterial activity of the binding agent. 1 tbl

FIELD: reinforcing material for tires. SUBSTANCE: wire thread is made in the form of spiral free from residual torsion elastic stresses. Method involves twisting unwound straight wire threads up to plastic deformation zone with following untwisting, with at least two wire threads being brought into contact and united prior to untwisting. At least two wire threads are brought into contact by means ...

FIELD: organic chemistry, pharmacy. SUBSTANCE: invention describes the novel derivatives of 3'-aziridino-anthracycline of the general formula (1) where R1 means hydrogen atom or methoxy-group; R2 means hydrogen atom, hydroxyl-group or acylhydroxy-residue of the formula (2): O-COR5 where R5 means pyridyl; R3 and R4 both mean hydrogen atom or one of R3 and R4 means hy...

FIELD: petrochemical processes. SUBSTANCE: naphtha boiling away within the limits of distillate hydrocarbon flow is fed into the first column-type reactor operated as depentanizer or dehexanizer and functioning as catalytic distillation structure. Resulting sulfides, thiophenes, and heavy mercaptans are removed jointly with still residue. The latter is subjected to hydrodesulfurization in the seco...

A method is provided for replacing compressed video from a first source with video from a second source at a predefined insertion point in a video data stream. If the video from the second source is progressively refreshed video, it is decompressed sufficiently prior to the insertion point to enable the recovery and recompression of a first video frame (in encoding order) from the second source to...

An image signal to be outputted is divided into two areas or a first area and a second area. In an electronic watermarking information forming section (WM forming section), a spectrum spread signal (electronic watermarking information) is formed as the first additional information so as to be superposed on the first area of the image signal. The spectrum spread signal is superposed on the first ar...

A combination of Global System for Mobile communications (GSM) capabilities including Short Message Service (SMS), Subscriber Identity Module (SIM) and Customized Applications for Mobile network Enhanced Logic (CAMEL) allows an advertiser to pay a portion of the airtime cost of a call originated by a mobile subscriber after that subscriber has listened to a recorded advertisement. The combination ...