FIELD: oil and gas industry, particularly to perform gas-dynamic well survey. ^ SUBSTANCE: method involves attaching filtering cylinders to filtering pack frame between swirler and end thereof by connecting fluoroplastic filtering cylinders one to another, to swirler and to filtering pack end with rings having annular grooves cut around ring perimeters, wherein the grooves have trapezoid cross-sec...

FIELD: mechanical engineering. ^ SUBSTANCE: proposed self-controlled automatic clutch has two outer clutch members and one inner clutch member with two rows of sprockets, locking disk with projections and cups for springs arranged between sprockets and installed for displacement through definite angle relative to inner clutch member, springs and rollers arranged in pairs in wedge-like slots formed...

FIELD: transport engineering; crawler vehicles. ^ SUBSTANCE: proposed controlled differential contains power differential, control mechanism and two self- braking drives. Driven links of self-braking drives are rigidly coupled with driven links of power differential. Control mechanism is made in form of regulating differential and regulators. Driven links of regulating differential are connected w...

FIELD: measuring equipment engineering, in particular, transformers of angular speed to electric signal. ^ SUBSTANCE: angular speed indicator has resonator, circuits of primary and secondary vibrators made thereon, systems of primary and secondary oscillation indicators, primary system for controlling vibration with phase shift circuit and circuit for phased automatic frequency adjustment, seconda...

FIELD: measuring equipment engineering, in particular, transformers of angular speed to electrical signal. ^ SUBSTANCE: angular speed indicator contains resonator, vibrators systems made thereon, and also systems of primary and secondary oscillation indicators, vibration control system. Output of primary oscillations indicators is connected to input of first input amplifier, to output of which pha...

FIELD: production of lead batteries. ^ SUBSTANCE: proposed device for sealing cell-to-cell connections of lead batteries has transfer molds joined with baseplate 7 and provided with closing mechanism; it also has plasticizing and injection mechanism with injection bushing 7, transfer molds made in the form of two platforms 1 and 2 for reciprocating whose butt-end surfaces are made in the form of c...

FIELD: electrical engineering; storage battery manufacture. ^ SUBSTANCE: proposed storage battery has case accommodating two groups of cells and common cover with terminal leads connected to binding posts; cover is provided with two conducting jumpers of which one interconnects positive binding posts of cell groups and other one, negative binding posts of cell groups; each conducting jumper is con...

The level (5) of each charge is determined by tilting the furnace (1). Following its return to the operating position (21a), optical measurement is employed, or the determination is made by estimating the angle of tilt ( alpha ). From this, the melt bath level (5a) is determined. From this determination, the spacing (6) between the oxygen-blowing lance (4) and the melt bath level is adjusted. - An...

FIELD: oil production, particularly to activate equipment used for productive formation perforation and isolation, rock sample taking and accident elimination. ^ SUBSTANCE: method involves lowering perforating equipment connected to pipes in well and triggering charge initiation means by connecting above means to current source. The current source is self-contained current source located in down-h...

A downhole tool positionable in a wellbore for penetrating a subterranean formation includes a housing having at least one protuberance extending therefrom. The protuberance has at least one centralizing section and a protective section. A probe is positioned in the protective section such that the horizontal cross-sectional area of the housing along the protective section is less than the horizon...

FIELD: electrical engineering; post-formation dry-out of active-material covered plates for lead-acid batteries. ^ SUBSTANCE: proposed device for drying active-material covered negative plates has heat-insulating casing accommodating chain conveyer with satellites disposed on its straps and used to carry vertically suspended plates being treated, as well as heating and air supply means; secured at...

A downhole fluid pump including a pump chamber, and a piston disposed in the pump chamber so that the piston will move in one selected from a charge stroke and a discharge stroke when the piston is exposed to a differential pressure. The downhole fluid pump may form part of a formation evaluation while drilling tool.

FIELD: polymer fibers. ^ SUBSTANCE: invention relates to technology of producing high-quality polyester fibers with modified section characterized by satisfactory color tone and excellent moldability and suitable for textile industry. Polyester fibers characterized by deformed section are prepared from polyester polymer. Polymer is prepared via polycondensation of aromatic dicarboxylic acid ester ...

The invention relates to a method for producing cellulosed molded articles having a functional effect. The method is characterized by charging cellulosed fibers or films with incorporated ion exchangers having bactericidal metal ions and/or ionic pharmaceutical active substances in such a manner that a depot of these active substances is built up in the fiber. Said depot time releases the active s...

The invention relates to a method for producing foamed slag on high-chromium steel melts in an electric furnace, whereby a mixture consisting of a metal oxide and carbon is introduced into the furnace, the metal oxide in the slag is reduced by the carbon, and the gases created in the slag form bubbles which thus foam up the slag. In order to be able to control the gas formation and thus the foamin...

The invention relates to a method for recovering metallic elements, especially metallic chromium, from slag containing oxides, especially chromium oxides, in an electric-arc furnace. According to said method, the slag is not reduced in a separate step after melting, but the following steps are carried out: a charge is introduced into tile electric-arc furnace, and melted, forming a molten metal an...

A paper roll supporting device for an image forming apparatus includes a pair of flange members to be inserted into opposite ends of a paper roll. Each flange member includes a flange body made up of a flange portion and a cylindrical support portion that is to be inserted into a tubular core included in the paper roll. A claw member has a plurality of claws capable of protruding from the outer ci...