baber/WOPTO huggingface dataset:
Patent RU-2060161-C1 (RU)
Title: Vertical crankpress
Inventor: MITYUKHLYAEV PETR INNOKENTEVIC
IPC: B30B1/26
Filed: 1991-06-24
Granted: 1996-05-20
Abstract: FIELD: forge-and-press mechanical engineering. SUBSTANCE: vertical crankpress consists of slide block 2 placed in guideways of bed-plate 1 and connected with crankshaft 3, two-linked fractured connecting rod 4 in the form of upper crank 5 and lower crank 6 articulated by cylindrical surfaces. Power cylinder 21 of switching on controls press operation. It consists of cylinder housing 22, piston 23, plunger 24 and spring 25. To achieve the effect housing 22 is hinged on rotary lever 29 placed in through slot 30 of supporting housing 31. Pivots 8 of circular washer 7 of crank 6 of connecting rod are mounted eccentric relative to its central axial line. Spring 25 switches over the connecting rod to idle rocking when power cylinder 21 is switched off. Working stroke of press at constant rotation of shaft 3 is carried out by feeding the compressed air into cylinder 21 according to instruction. As a result cranks 5 and 6 of connecting rod are held in straightened position. Slide block 2 is shifted downwards for carrying out working operation. EFFECT: enhanced reliability. 1 cl, 1 dwg
Patent RU-2017666-C1 (RU)
Title: Container
Inventor: KOBOZEV ILYA V
IPC: B65D8/00
Filed: 1991-06-26
Granted: 1994-08-15
Abstract: FIELD: containers. SUBSTANCE: container has a cylindrical case made collapsible and which, in turn, has a concave inside bottom and a side wall with vertical corrugations which apices are directed inside the container. An insert which may have a mirror coating is positioned in the case. A heat-insulating material may be positioned in the gaps between the walls of the insert and the case. The bottom and the cover may be made perforated. EFFECT: improved structure. 3 cl, 7 dwg
Patent RU-2030398-C1 (RU)
Title: Aminoselenide hydrochloride of aromatic series showing phosphoro-protective action
Inventor: PATSAEV ANAPIYA KANYBEKOVICH
IPC: C07C391/02
Filed: 1991-06-26
Granted: 1995-03-10
Abstract: FIELD: phosphoro-protective agents. SUBSTANCE: product: aminoselenide hydrochlorides of the formula (H 2 N·HCl)(R)(R 1 )-C-CH=CH-Se-Ar where R - methyl; R 1  - methyl or ethyl; Ar - p- or o-methylphenyl, p-chlorophenyl or alpha-naphthyl. Reagent 1: acetylene amine. Reagent 2: aromatic selenol. Reaction conditions: in ethanol at 70 C for 3 h following by treatment with hydrogen chloride. EFFECT: improved method of synthesis. 3 tbl
Patent RU-2023655-C1 (RU)
Inventor: ISMAGILOV FOAT R
IPC: B01D53/86
Filed: 1992-06-05
Granted: 1994-11-30
Abstract: Изобретение относится к процессам получения коллоидной серы из сероводородсодержащего углеводородного газа и может быть использовано в химической технологии и сельском хозяйстве в производстве гербицидов для борьбы с болезнями и вредителями плодовых, ягодных и овощных культур, резинотехнической промышленности. Сущность изобретения заключается в том, что сероводородсодержащий углеводородный газ окисляют кислородом воздуха в псевдоожиженном слое алюмомагнийванадийхромового катализатора, содержащего, мас.%: оксид хрома 16 - 18; оксид магния 4,0 - 5,2; оксид ванадия 3,5 - 4,2; оксид алюминия остальное при отношении H 2 S:O 2 , равном 0,5 - 0,51. Окисление осуществляют при 250 - 300°С. Полученные продукты контактируют с водой при 60 - 85°С. 1 з.п. ф-лы, 1 табл.
Patent RU-2013129-C1 (RU)
Title: Grating of tube mill
Inventor: CHURYUMOV VITALIJ A
IPC: B02C17/18
Filed: 1991-11-20
Granted: 1994-05-30
Abstract: FIELD: industrial building materials. SUBSTANCE: grating of tube mill is formed by concentrically positioned spaced rings which are arranged is staggered order in two parallel planes and connected to each other with the aid of spacer stuffings. EFFECT: enhanced reliability. 1 dwg
Patent RU-2088582-C1 (RU)
Inventor: RAMON MERSE VIDAL
IPC: A61P25/26
Filed: 1992-01-27
Granted: 1997-08-27
Abstract: Использование: в качестве фармацевтической композиции. Сущность изобретения: продукт - производные арил (-или гетероарил) пиперазинилалкилазолов формулы       ,  R 3  - водород, галоген, карбоксил, карбоксамид, фенил; Z 1  - азот, C - R 1 ; Z 2  - азот, C - R 2 ; Z 4  -азот; C - R 4 ; Z 5  - азот, углерод; Ar -фенил, который может быть замещен хлором, метокси или представляет собой 2-N-метил имидазол, 3-(1,2-бензотиазол) и так далее. 3 с.п. ф-лы, 8 табл.
Patent RU-2139308-C1 (RU)
Inventor: LJUDVIG KARL REJKSE
IPC: C09D133/08
Filed: 1990-06-22
Granted: 1999-10-10
Abstract: Порошковая грунтовочная композиция для покрытия содержит в качестве термореактивной смолы эпоксидированную диановую смолу с эпоксидной эквивалентной массой 400-1800 или полигидроксиэфир при следующем соотношении компонентов, маc. %: эпоксидная диановая смола или полигидроксиэфир 50-90; полиакриловые смолы 5-15; пигмент 0-35; отвердитель 0-10. Достигается улучшение несодержащих растворителей составов для получения первых покрытий, способных хорошо слипаться с металлической подложкой, а также обладает хорошей взаимной адгезией с покрытиями на основе ПВФ, обеспечивая при этом хорошую коррозионную устойчивость субстрату. 2 c. и 3 з.п. ф-лы.
Patent RU-2049876-C1 (RU)
Inventor: ZEGE SERGEJ O
IPC: E04C3/00
Filed: 1991-12-10
Granted: 1995-12-10
Abstract: Изобретение относится к строительству и может быть использовано в конструкциях большепролетных перекрытий зданий и сооружений любого назначения. Сущность изобретения: перекрытие объемного сооружения выполнено в виде пространственной изгибаемой конструкции, образованной жестко соединенными между собой при помощи стержней или ребер оболочками, расстояние между которыми кратно высоте внутреннего помещения, снабженной заанкерными во внешнем опорном контуре гибкими несущими арматурными элементами. При этом стержни или ребра, соединяющие оболочки пространственной конструкции, расположены в одних плоскостях с гибкими несущими арматурными элементами и прикреплены к ним. Изобретение позволяет повысить технологичность конструкции, снизить ее материалоемкость и полезно эксплуатировать объемы, образованные между оболочками. 2 ил.
Patent RU-2044621-C1 (RU)
Title: Cross-cutting machine
Inventor: MAZURKIN PETR MATVEEVICH
IPC: A01G23/02
Filed: 1991-12-23
Granted: 1995-09-27
Abstract: FIELD: forest industry. SUBSTANCE: cross-cutting machine has a tool carrier with arrow 1, beams 9 and 10 extensible relative to the arrow, a sawing mechanism and a drive for the beam separation in the form of hydraulic cylinders 11 and 13. The machine is equipped with a rotary axis set up on the arrow end, with additional sawing mechanisms which, like the main one, are made in the form of disk saws 6 power-driven from hydraulic motors 7 and with forks having U-shaped beams. A disk saw with hydraulic motor 7 is fastened on one end of each beam. The other end of the beam is made as checking device 8. The forks are made for sliding and turning relative to the axis and the U-shaped beams are mounted on the shaft for sliding. The forks located on one side from the arrow are hinged with it by means of extensible beams 9 and 10 which are made telescopic and are connected in one group by its ends from the arrow side. EFFECT: simpler design. 2 cl, 7 dwg
Patent RU-2043812-C1 (RU)
Inventor: POKROVSKIJ PETR P
IPC: B21D41/02
Filed: 1992-01-03
Granted: 1995-09-20
Abstract: Изобретение относится к обработке металлов давлением и может быть использовано для калибровки канала топливопровода высокого давления дизеля. Оправка для калибровки канала трубопровода содержит входную часть в виде конуса с острым углом в направлении движения, ряд формообразующих ступеней с кольцевыми канавками /К/ между ними, направляющую часть, выполненную в виде цилиндра, пристыкованного через крайнюю кольцевую К к последней формообразующей ступени, на поверхности которой выполнен входной питающий канал в виде спиральной К, осевой канал, связанный с одной стороны с необработанной частью канала трубопровода, а с другой через радиальные каналы с крайней кольцевой К. Под воздействием давления рабочей жидкости на направляющую часть оправки она начинает движение в канале трубопровода. При этом конус входной части и направляющая часть обеспечивают ее самоцентровку. Под воздействием перепада давления, образующегося на оправке в результате дросселирования потока рабочей жидкости, и боковой гидродинамической составляющей в спиральной К на оправке возникает крутящий момент, проворачивающий ее при движении по каналу трубопровода. 4 з.п. ф-лы, 5 ил.
Patent RU-2060207-C1 (RU)
Title: Method of heat protection of hypersonic flying vehicle
Inventor: VATOLIN MIKHAIL RUDOLFOVICH
IPC: B64G1/58
Filed: 1992-01-22
Granted: 1996-05-20
Abstract: FIELD: aeronautical engineering. SUBSTANCE: heat protection of hypersonic flying vehicle is effected through change of parameters of gas stream flowing around flying vehicle due to suction of boundary layer via through holes available in skin inner chamber and cooling of skin due to adiabatic expansion of gas being sucked. Inner chamber is evacuated to intensify rate of gas suction. EFFECT: effective cooling of skin. 2 dwg
Patent RU-2092839-C1 (RU)
Title: Method for differential diagnosis of toxemias and septicemia cases
Inventor: BAKUEV MAKSUDIN M
IPC: G01N33/48
Filed: 1991-11-11
Granted: 1997-10-10
Abstract: FIELD: medicine; diagnostics of infectious diseases. SUBSTANCE: patient's leucoconcentrate smear is analyzed by subjecting it to myeloperoxidase reaction. Purpose of analysis is to detect in smears characteristics forms of cells. In case of detecting in smears paraleucoblast forms, immature cells of myeloid series saturated with ferment-containing granules, and neutrophils having definitely marked polymorphism in terms of their size, diagnostician must recognize in third picture specific feature of septicemic sepsis. In presence in inflammation focus without septicemia, immature forms are usually associated with degranulated cells. EFFECT: method makes it possible to draw clear-cut boundary between detected septicemia and TOXEMIAS syndromes, to detect their combinations and to diagnose bacteriemia case during first 1-3 days after contracting disease. 2 cl, 3 dwg
Patent RU-2071576-C1 (RU)
Title: Drive
Inventor: SUCHILIN VLADIMIR A
IPC: F16H3/00
Filed: 1992-03-09
Granted: 1997-01-10
Abstract: FIELD: mechanical engineering; wave gearing. SUBSTANCE: drive has second driven shaft 10 engaged with rigid gear wheel. Both driven shafts 10 and 6 carry overrunning clutches. Flexible gear wheel 5 and rigid gear wheel 9 are installed with possibility of alternate automatic locking by electromagnetic locking device. EFFECT: enlarged functional capabilities and improved reliability of drive including wave gearing. 3 cl, 2 dwg
Patent RU-2058580-C1 (RU)
Title: Multichannel apparatus for controlling temperature of electric heaters
Inventor: GUGELEV VLADIMIR M
IPC: G05D23/19
Filed: 1992-04-01
Granted: 1996-04-20
Abstract: FIELD: systems for controlling temperature of electric heaters, being used for heating movable filaments. SUBSTANCE: apparatus includes a multichannel regulator with temperature setter for a main group of control channels with inlets, whose number is equal to a number of the control channels, and with outlet transistorized circuits; temperature pickups of the electric heaters, optic thyristors, isolation diodes, pulse-width modulator, having a pulse shaper, a frequency divider, modulators with modulation setters, switching members. The multichannel apparatus is provided by an additional group of control channels with temperature setter and output transistorized circuits. EFFECT: enhanced accuracy at sustaining temperature of electric heaters in their transition modes with automatic disconnection at over heating. 1 cl, 1 dwg
Patent RU-2012640-C1 (RU)
Title: Manganese-base alloy
Inventor: SHCHEPOCHKINA YULIYA A
IPC: C22C22/00
Filed: 1992-04-03
Granted: 1994-05-15
Abstract: FIELD: alloys. SUBSTANCE: alloy has, wt. -% : manganese 51.5-53.0; aluminium 1.0-1.5; iron 2-3; nickel 2.0-2.5; magnesium 0.3-0.6; chrome 9-12, and copper - the rest. Alloy shows the following properties: corrosion stability of alloy on the air at 500 C for 1 h is 10 x 10×10 -4 . Alloy is used as structural material. EFFECT: enhanced quality of alloy. 1 tbl
Patent RU-2036855-C1 (RU)
Inventor: NIKITIN YURIJ M
IPC: C03B5/00
Filed: 1992-04-03
Granted: 1995-06-09
Abstract: FIELD: quartz glass facing. SUBSTANCE: quartz glass facing substrate has facing table mounted on column for rotation and fence for forming workpiece from quartz glass. Fence is formed as honeycomb structure with through openings. EFFECT: increased quality of facing, simplified construction and enhanced reliability in operation. 2 dwg, 1 tbl
Patent RU-2042119-C1 (RU)
Inventor: VOROBEJ GRIGORIJ K
IPC: G01G19/12
Filed: 1992-04-15
Granted: 1995-08-20
Abstract: FIELD: radio measurement technology. SUBSTANCE: gear weighing load of dump truck has movements transducer placed between frame and rear axle, counting and indication unit which movements transducer is produced in the form of section of waveguide. Both leads of it are provided with short-circuit switches: one-immobile, the other one-mobile which are hinged: one-to frame, the other one to rear axle. Generator (amplifier) of superhigh frequencies of reflective type is mounted in waveguide at distance of quarter-wavelength from immobile short-circuit switch. Counting and indication unit is connected to anode circuit and is manufactured in the form of low-frequency filter and frequency meter connected in series. SHF generator (amplifier) is built on avalanche diode or Gunn-effect diode. EFFECT: enhanced reliability and accuracy of gear. 2 cl, 2 dwg
Patent RU-2058959-C1 (RU)
Title: Bindering suspension
Inventor: TRUBITSYN MIKHAIL ALEKSANDROVI
IPC: C04B35/14
Filed: 1992-03-03
Granted: 1996-04-27
Abstract: FIELD: building materials production. SUBSTANCE: proposed bindering suspension contains silicium oxide having fractions 0.01-100 mkm in size and Na 2 O-containing additive. Quantity of mentioned above additive is 0.1-2.0 % as calculated for nickel. Proposed suspension may contain nickel, chromium and ferrum, their quantities being 0.05-0.3 mass %, 0.05-0.3 mass % and 0.1-1.0 mass % respectively. EFFECT: increases resistance to cold. 2 cl, 1 tbl
Patent RU-2106711-C1 (RU)
Title: Shell-type magnetic core
Inventor: CHERNIKOV GEORGIJ BORISOVICH
IPC: H01F3/04
Filed: 1992-05-12
Granted: 1998-03-10
Abstract: FIELD: electrical engineering, transformers and other electrical gears. SUBSTANCE: proposed shell-type magnetic core is wound from one ferromagnetic tape having extended continuous section that forms internal cylinder in process of winding, having extended window section in midpart that forms yoke in process of winding and having extended continuous section with holes for cooling agent that forms external cylinder in process of winding. EFFECT: facilitated manufacture, improved functional characteristics. 1 cl, 4 dwg
Patent RU-2039292-C1 (RU)
Title: Method for detection and location of underground fire seats
Inventor: PORTOLA VYACHESLAV A
IPC: E21F5/00
Filed: 1992-05-22
Granted: 1995-07-09
Abstract: FIELD: mining industry. SUBSTANCE: indicating gases are sampled from drill holes with the help of application of sorption material to punching or drilling tool. Sorption material is used in form of silica gel, zeolite or silicates. EFFECT: higher efficiency. 3 cl, 1 dwg
Patent RU-2017987-C1 (RU)
Inventor: BUDAEV VALERIJ A
IPC: F01N1/10
Filed: 1992-06-15
Granted: 1994-08-15
Abstract: FIELD: mechanical engineering. SUBSTANCE: silencer has cylindric case made of porous material, insert provided on a porous belt, receiving chamber positioned at the inlet to the case, and distributing grids secured in the case from the side of faces of the insert. Air enters the case made of porous material from the receiving chamber through the distributing grid. The case is provided with the insert made of porous material. Exhaust compressed air is discharged trough the second distributing grid to the atmosphere. In addition silencer has case made of porous material, insert made of porous belt received within the case and distributing grids secured within the case from the side of faces of the insert. EFFECT: enhanced silencing. 2 cl, 2 dwg
Patent RU-2099058-C1 (RU)
Title: Method of preparing the solid quick-soluble dispersed system containing acetylsalicylic acid
Inventor: DUSHKIN ALEKSANDR V
IPC: A61K31/60
Filed: 1992-06-15
Granted: 1997-12-20
Abstract: FIELD: chemical-pharmaceutical industry. SUBSTANCE: acetylsalicylic acid is mixed with alkaline or alkaline-earth metal carbonate and mixture is subjected for mechanical treatment in impact-abrasive apparatus. Reaction of neutralization of acetylsalicylic acid is occurred up to conversion degree 1-10%. EFFECT: improved method of preparing. 2 tbl
Patent RU-2024857-C1 (RU)
Inventor: EFITSENKO PETR YU
IPC: G01N24/08
Filed: 1992-05-21
Granted: 1994-12-15
Abstract: Использование: при анализе свойств твердых тел радиоспектроскопическими методами. Сущность изобретения: приведение системы спинов ядер вещества в состояние насыщения при внешнем воздействии и определение времени ядерной спин-решеточной релаксации по ходу восстановления продольной составляющей ядерной намагниченности к равновесному значению в условии дополнительного воздействия на спин-систему переменным электрическим током или акустическим полем с частотой, равной удвоенной частоте ларморовской прецессии ядер вещества. 2 ил.
Patent RU-2045061-C1 (RU)
Inventor: AKHMETOVA TANZILYA IMAMOVNA
IPC: G01N30/06
Filed: 1992-06-18
Granted: 1995-09-27
Abstract: Использование: в аналитической химии, в частности в способе определения диметилформамида в воздухе. Сущность изобретения: способ предусматривает перед использованием активацию селикагеля кипячением в 15 18%-ном растворе хлористоводородной кислоты при их объемном соотношении, равном 1 2, промывку от ионов хлора водой и высушивание сначала при 95 105°С, потом при 150°С в течение 1 ч. Затем ведут пропускание воздушной анализируемой смеси и элюирование диметилформамида водно-спиртовой смесью с последующим выпариванием спирта. 2 табл.
Patent RU-2007635-C1 (RU)
Inventor: GALYSHKIN NIKOLAJ V
IPC: F16C35/02
Filed: 1992-06-23
Granted: 1994-02-15
Abstract: FIELD: mechanical engineering. SUBSTANCE: case of the bearing support is provided with bearing bushing whose outer surface is spherical. Washers, which enclose the bushing by middle part, is made of ball segments with eyes having bent back ends. Eyes of each washer are rigidly fixed to the case of the bearing support against radial and axial displacements by using an additional washer with screws. EFFECT: enhanced operating loads. cl, dwg
Patent RU-2017044-C1 (RU)
Title: Ship's signal light projector
Inventor: DIREKTOROV NIKOLAJ F
IPC: F21L4/00
Filed: 1992-07-14
Granted: 1994-07-30
Abstract: FIELD: electrical engineering, light signalling. SUBSTANCE: novelty of invention resides in using mercury-xenon D.C. lamp in projector. Said lamp is series-connected across switch and power source, said switch being parallel-connected with outputs of modulating device whose input is connected to input of Morse code transmitter. EFFECT: improved design. 2 dwg
Patent RU-2031600-C1 (RU)
Title: Method of producing grits for fast preparing
Inventor: POPOV MIKHAIL P
IPC: A23L7/10
Filed: 1992-07-14
Granted: 1995-03-27
Abstract: FIELD: food industry. SUBSTANCE: grits are wetted within 5-15 min in solution of starch paste having concentration 0.5-1.0 %. The process is carried out at 90-100 C by uninterrupted mixing. Grits are heated to 170-230 C within 10-15 min. The process takes place with the help of infrared irradiation having wavelength 0.9-1.1 μm at radiation density 26-32 kWt/m 2 . EFFECT: improves efficiency of the method. 3 cl
Patent RU-2009175-C1 (RU)
Title: Unsmoky additive
Inventor: LERNER MOISEJ O
IPC: C10L1/18
Filed: 1992-09-18
Granted: 1994-03-15
Abstract: FIELD: additives production. SUBSTANCE: additive contains mass % : cyclopentadienyltricarbonyl of manganese 15-25, dehydrated castor oil 10-20, lecithin 8-15, solvent- up to 100. EFFECT: improves additive's quality. 3 tbl
Patent DE-10114868-C1 (DE)
Inventor: JACKSTELL RALF
IPC: B01J31/28
Filed: 2001-03-26
Granted: 2002-10-31
Abstract: A process for hydroformylating olefins with a rhodium catalyst wherein the rhodium catalyst comprises rhodium and at least one diphosphine ligand of formula
Patent DE-10151416-C1 (DE)
Title: Multiplexer circuit for monitoring several switch elements has integrated sampling circuit for interrogating switch conditions
Inventor: LIMBRUNNER HUBERT
IPC: G08C15/06
Filed: 2001-10-18
Granted: 2003-04-10
Abstract: The multiplexer circuit has a microprocessor (3) receiving a number of input signals and a control signal determining which input signal is fed to the multiplexer output, provided by a sampling circuit (T1-T4,R16-R23) for sampling the signal inputs (4.1-4.6), for interrogating the switch condition of respective switch elements (1,2).
Patent DE-10152186-C1 (DE)
Title: Unit dosing oxygen into gas generator for fuel cell, comprises perforated concentric cylindrical pipes which can be rotated relative to each other
Inventor: GRIESMEIER UWE
IPC: H01M8/0612
Filed: 2001-10-23
Granted: 2003-06-12
Abstract: The unit includes two concentric cylindrical pipe sections (1, 6). Each has openings (2, 7, 2a, 7a) in its surfaces (5a, 5b). The pipe sections can be turned relative to each other, allowing the oxygen-containing medium (A) to flow into the inner cylindrical pipe section (1).
Patent DE-10208893-C1 (DE)
Title: Lock mechanism has key channel in lock cylinder for insertion of flat key and S-shaped blocking levers controlling locking rail cooperating with cylinder housing for preventing rotation of lock cylinder
Inventor: HERTEL JOERG
IPC: E05B27/10
Filed: 2002-03-01
Granted: 2003-08-21
Abstract: The lock mechanism has a lock cylinder and a flat key, the lock cylinder having a cylinder housing and a relatively rotatable cylinder core (6), provided with a key channel (8) parallel to its longitudinal axis (7) for insertion of the flat key which is provided with notches along its shaft. The cylinder core has a spring-loaded radially sliding locking rail (17) parallel to its longitudinal axis locating in a recess in the cylinder housing and pivoted, spring-loaded S-shaped blocking levers fitting in radial slits (24) in the cylinder core, cooperating with the locking rail for permitting or blocking the rotation of the cylinder core within the cylinder housing.
Patent DE-10215118-C1 (DE)
Title: Device for cooling heat-treated wires comprises a cooling nozzle having a nozzle body in the form of a central part containing a wire feeding channel, the nozzle and coolant feeding channels and removing channels
Inventor: MENGE RAINER
IPC: B21B45/02
Filed: 2002-04-05
Granted: 2003-06-12
Abstract: Device for cooling heat-treated wires comprises a cooling nozzle having a wire feeding channel (16). The nozzle body (2) is in the form of a central part containing the wire feeding channel, the nozzle and coolant feeding channels and removing channels (22a). Covering plates having openings for the coolant are placed on the longitudinal sides of the central part.  Preferred Features: The coolant channels protrude from an inlet chamber into which several skew feed channels open. The nozzle is connected to a collecting chamber for the coolant in the wire running direction. A flow brake is provided in the wire feeding channel in the wire inlet region.
Patent DE-19520822-C1 (DE)
Title: Route, destination, or stopping point display for passenger vehicle
Inventor: BERG BAERBEL
IPC: B60Q1/50
Filed: 1995-05-30
Granted: 1996-09-05
Abstract: The display has an elongate housing (1) with a central viewing window (12) at the front, containing liquid crystal display modules with their associated control circuits and at least one fluorescent light tube and associated reflector, acting as a back lighting source. The reflector is provided by the rear wall (2) of the housing, which has angled surfaces extending parallel to the housing longitudinal axis on either side of a central planar surface.