FIELD: automotive industry; tire industry; road vehicles. ^ SUBSTANCE: proposed pneumatic tire tread cap is provided with great number of cuts, mainly, cross-orientated. According to invention, some of cross cuts at no wear form on tread running surface zones in form of cavities with mean width exceeding or equal to 2 mm, and maximum depth Pt not exceeding 80% of thickness of tread cap subject to ...

FIELD: thread for producing fabric used in manufacture of forming, pressing and drying parts of papermaking machines and utilized as reinforcing base for belts with polymer coating used for manufacture of paper, or belts for corrugating machine, or for other commercial units wherein basic material is subjected to dehydration. ^ SUBSTANCE: fabric is made from single filament thread spirally wound t...

FIELD: oil production and measuring equipment, particularly to perform borehole or well survey. ^ SUBSTANCE: device comprises inlet pipeline, separator, gas and liquid pipelines adapted to remove gas and liquid correspondingly from the separator and outlet pipeline. Liquid meter with extended measurement range and on-off flow regulator are installed in liquid pipeline of the separator. Measuring c...

FIELD: the invention refers to the field of high-precision instrument-making industry and may be used at manufacturing of such measuring devices of an angular speed of a moving foundation as vibratory gyroscopes. ^ SUBSTANCE: the gyroscope has a foundation, an inertial disk attached to the foundation with the help of an inner elastic suspension consisting of four direct elastic rods of rectangular...

FIELD: oil and gas industry, particularly to provide casing pipe stability in chemical deposits. ^ SUBSTANCE: method involves removing stresses acting on casing pipes during deep prospect well drilling, wherein the stress is appeared due to side rock pressure acted on casing pipe from salt massif side. To provide above stress removal orifice system is created in casing pipe in lower part of salt m...

FIELD: mining industry, particularly for rock massif stress determination. ^ SUBSTANCE: method involves performing acoustic well logging through casing pipe and determining side rock pressure transmitted to casing pipe through cement environment by longitudinal and transversal wave rate ratio in salt occurrence interval; determining value of side rock pressure to be transmitted to pipe wall as dif...

FIELD: electrical engineering; manufacture of positive plates for vehicle lead batteries. ^ SUBSTANCE: newly introduced in proposed active material for positive plates of lead batteries that incorporates lead oxides, lead sulfate, tin sulfate, and metal lead are polyacrylonitrile (nitronic) rubber fiber as binder, proportion of ingredients being as follows, mass percent: lead oxide, 71.8 - 85.0; l...

FIELD: oil well survey, particularly to determine liquid flow rate in well. ^ SUBSTANCE: method involves heating liquid flow in impulse mode; measuring liquid temperature by temperature sensors and comparing signals of two temperature sensors located in common line and spaced from heater; determining liquid flow rate from mathematic relation by the first and the second sensor signals correlation, ...

A well tool activation system comprises a controller (17) linked via a cable (14) to a downhole tool (11) with multiple control units (18A-D). The control units (18A-D) each comprise a microprocessor and an initiator or detonator device (26) except for the first which acts as a safety sub (10A) as it has no initiator. In order to trigger the initiator (26) the controller (17) sends a unique identi...

FIELD: oil and gas extractive industry, namely, method for mounting and fastening objects or devices in a well or flow string and variants of device for fastening objects in wells. ^ SUBSTANCE: in accordance to method, mounting and fastening of objects or devices in well or flow string is performed by dropping the support, connected to object, with spring-loaded drawbars and levers made with negat...

FIELD: analytic chemistry for lead-acid battery manufacture. ^ SUBSTANCE: in order to essentially raise precision of analytic control of N-phenyl-anthranilic acid content in expander slurry and in active material proposed method involves use of oxidation reaction with potassium dichromate in very acidic medium to form products of pink-violet color and evaluation of mass fraction of N-phenyl-anthra...

FIELD: mechanical engineering. ^ SUBSTANCE: invention can be used as drives of aircraft and rocket automatic mechanisms. Proposed harmonic drive has housing 1, electric motor 4, output shaft 3, harmonic gear train, n (n=1, 2, etc) planet pinions 15 and torque-limiting clutch 12 arranged in space of output shaft. Bearing 10 of torque-limiting clutch 12 is arranged between shaft 17 of torque-limitin...

A payout administration method including retrieving an electronic form selected according to a location of a gaming apparatus adapted to receive a wager from a player and to provide a payout based on the wager and a game outcome, retrieving stored data about the gaming apparatus or the player, and combining the electronic form and the stored data to generate a completed electronic form. Also provi...

The rewinding machine comprises: winding elements (1, 3, 5) to wind the web material (N) and form the logs (L1, L2); at least a first glue dispenser (31 B) to apply a first glue (C2) to a portion of said web material, in proximity to a severing line, along which the web material is severed upon termination of winding a log. The first glue dispenser comprises a mechanical element (31 B) that touche...

A method of producing a grid for a lead-acid battery in accordance with the present invention includes the step of placing lead alloy foil on a base material sheet of a lead-calcium alloy and attaching the lead alloy foil under pressure to the base material sheet. The thickness t of the lead alloy foil, the thickness a of the base material sheet before the attaching, and the thickness b of the com...

A valve-regulated lead acid (VRLA) battery cell (2,40) has positive and negative plates (10,11,41,42) separated by separator media (12,43) and held together under pressure. The separator is adapted to support therein an electrolyte. Each plate has a first single or plurality of tabs (12,13,46) on a first side and a second single or plurality of tabs (15,16,47) on a second side of the plate, each t...

The robot cleaner has a body with a drive part and a suction member and a bumper (200) attached to the cleaner body by a support structure (240), when a collision occurs between an obstacle and the cleaner the bumper moves towards the cleaner body to absorb the shock and protect the body. In response to the movement a sensor (300) is turned on and affects the controller in order to change the dire...

Method and apparatus for thermally processing polyester pellets, e.g., polyethylene terephthalate pellets, in order to achieve a partial crystallization, whereby the polyester melt is fed to an underwater pelletizer and pelletized, the pellets obtained are fed to a water/solids separating device and the dried pellets are fed at a pellet temperature of greater than 100° C. to an agitation device th...

A composition which comprises 1,1,1,3,3-pentafluorobutane (HFC-365mfc) and 1,1,1,3,3-pentafluoropropane (HFC-245fa) in a weight ratio HFC-365mfc/HFC-245fa of from 60:40 to 75:25.