baber/WOPTO huggingface dataset:
Patent HU-206751-B (HU)
Inventor: BALINT PAL
IPC: E04C1/00
Filed: 1990-05-22
Abstract: A találmány hangelnyelő, önhordó téglák, illetve építőelemek előállítására vonatkozik. Az új hangelnyelő téglák, illetve építőelemek előállítása ipari ásványi hulladékok, téglaipari égetett törmelékek, selejt újrahasznosításával történik, amelynél a feldolgozandó törmeléket a kísérő szennyezésektől elkülönítik, kívánt esetben aprítják, osztályozzák. A nyert szemcsefrakciókat 0,5-1-2-3 mm átmérőjű szemcsetartományra osztályozzák, majd szerves vagy szervetlen kötőanyaggal keverik össze, nedvesség és adalékanyagok kíséretében homogén masszát készíte- nek, amelyet formáznak, 5-15xl05 Pa nyomáson végzett sajtolással, majd a nyers formatesteket a kötőanyag minőségétől függően megfelelő érleléssel vagy szárítással és/vagy 700 °C-on végzett égetéssel szilárdítják. A találmány továbbá hangelnyelő téglákra is vonatkozik, melyek hangelnyelési foka a 3002000 Hz frekvencia tartományban meghaladja az 50%-ot és szilárdsága legalább 4 MPa, így a kőzetgyapotokkal szemben előnyük, hogy tartószerkezet nélkül is beépíthetők. HU 206 751 A leírás terjedelme: 8 oldal (ezen belül 1 lap ábra)
Patent HU-183279-B (HU)
Inventor: BANKI FERENC
IPC: H04B3/20
Filed: 1980-12-31
Abstract: A találmány tárgya áramköri elrendezés kábelmeghajtó áramkörök kialakítására. Az elrendezésnek meghajtó áramköre, magas- és nulla-szintű lezáró áramköre van. A meghajtó áramkör kimenetei magasszintű meghajtó vezetéken keresztül a magasszintű lezáró áramkör, nulla-szintű meghajtó vezetéken át pedig a nulla-szintű lezáró áramkör bemenetére van kötve. Az elrendezés bemenetét a bemenő vezetékre csatlakozó meghajtó áramkör bemenete, kimenetét pedig a kábelre csatlakozó két lezáró áramkör közösített kimenete képezi. A találmány szerinti áramköri elrendezés előnyeit a következőkben lehet összefoglalni: A kábel nulla- és magasszinten egyaránt a hullámellenállásával van lezárva, ezért reflexiómentesen működik, következésképpen feleslegessé válnak a reflexiós problémák kiküszöbölésére alkalmazott áramköri megoldások.  -1-
Patent HU-194146-B (HU)
Title: Process for recovering red phosphorus applied during the preparation of ethyl iodide from alcohol and iodine in the presence of red phosphorus
Inventor: CSERMELY GYOERGY
IPC: C07C19/07
Filed: 1985-09-13
Abstract: Ethyl-iodide is prepd. from ethyl-alcohol and iodine with an excess 10-40 pref. 18 vol.% red phosphorous. The raw product is stirred with aq. sodiumhydrogen sulphite. The distillation residue of the reaction is reacted with this soln. for the regeneration of red phosphorous.
Patent HU-198802-B (HU)
Inventor: ENGARD FERENC
IPC: G09B5/00
Filed: 1984-10-22
Abstract: A találmány szerinti berendezésnek központi egysége, magnetofonja, továbbá mikrofonnal és fülhallgatóval ellátott tanári, valamint tanulói munkahelyei van(ak). A berendezés lényege, hogy a központi egység egy jelfeldolgozó (20). A tanári munkahely egy magnetofoncsoportból (10) a jelfeldolgozóból (20) és egy mikroszámítógépből áll. 4 mikroszámítógéphez megjelenítő és háttértároló csatlakozik. A jelfeldolgozó (20) első és második ki/bemenete, valamint harmadik kimenete egy hangfrekvenciás csatornán (A), egy szinkronizáló csatornán (B) és egy vezérlő csatornán (2) át a magnetofoncsoport (10) első és második he/kimenetére, valamint HU 198802 .4 leírás terjedelme: 20 oldal, 5 rajz, 25 ábra -1-
Patent HU-183774-B (HU)
Inventor: BODAS SANDOR
IPC: B01D25/00
Filed: 1981-12-30
Abstract: A találmány zárt szűrő berendezésre vonatkozik, amelynek nyomásálló tartálya; a tartályban elhelyezkedő szűrő ágya; a szűrőágy felett elhelyezkedő folyadékelosztó szerkezete; a tisztítatlan folyadék bevezetésére szolgáló, a szűrőágy fölé torkolló csöve; a szűrt folyadék elvezetésére szolgáló csöve; a szűrőágyat alulról megtámasztó szűrő feneke; a szűrőágy regenerálására szolgáló fluidum(ok) betáplálására szolgáló csöve®, valamint tisztításraszerelésre szolgáló, zárható-nyitható búvónyüása(i) van(nak). A találmány lényege, hogy a tisztítandó folyadék betáplálására szolgáló cső; a tisztított víz eltávolítására szolgáló, továbbá a szűrőágy regenerálására szolgáló fluidum(ok) betáplálásához előirányzott csőcsonk a tartály fenékrészének tartományában torkollik a tartály belsejébe. A fo lyadékelosztó szerkezetet a szűrőágy felett távközzel elhelyezkedő perforált lemez alkotja. A tisztítandó folyadék betáplálására szolgáló cső a tartályban centrálisán van elrendezve, a folyadékelosztó szerkezetként funkcionáló perforált lemez felett végződik, és mind e perforált lemezhez, mind a szűrőfenékhez mereven van rögzítve. A berendezés univerzálisan használható a legkülönfélébb szűrési műveletek végrehajtásához. Ugyanakkor az — önmagában ismert — csőszereléséhez tartozó csőcsonkjai elrendezésükből és kis számukból következően a szabadtéri, félszabadtéri és csamokos telepítést egyaránt lehetővé teszik. A berendezés olcsóbb és kisebb súlyú a korábban használt egyedi berendezéseknél. Univerzális használhatóságából következik, hogy sorozatban gyártható, ami természetesen csökkenti a gyártási költségeket.  -1-
Patent HU-204775-B (HU)
Title: Process for producing azodicarboxylic acid diamide
Inventor: WEIN TIBOR
IPC: C08J9/06
Filed: 1989-09-18
Abstract: Azo-di:carboxylic -acid-di:amine (and compsns. contg. it to be used as blowing agents for crosslinked polyethylene foams) is prepd. by oxidising a suspension of (all g/l.) 40-80 hydrazo-di:carboxylic -acid-di:amide, 40-70 ammonium-salt of an inorganic acid and 200-300 sodium salt of an inorganic acid, in the presence of 0.4-0.6 wt.% (based on hydrazo-di:carboxylic-acid-di:ami de) of a bromide source. Equimolar quantities of chlorine gas are used for oxidn. At least 60% of the chlorine gas is introduced in the reaction mix at 40-50 deg.C
Patent HU-199089-B (HU)
Title: Method for producing premixtures for concrete
Inventor: OBRAZCOV VJACSESZLAV NY
IPC: B28C3/00
Filed: 1986-12-04
Abstract: Cement, water and yeast-sulphite waste liquor are mixed to form make-up medium for high slump concrete mix. Medium is pref. activated by pulsed vibrations at 600-950 Hz. Cement to water mass ratio is pref. 1:1-1.5 and yeast-sulphite waste addn is pref. 0.03-0.1% of cement mass in concrete.
Patent HU-207276-B (HU)
Title: Process for separating oil from fishes
Inventor: ROSDY BELA
IPC: C07B63/00
Filed: 1989-11-16
Abstract: Fish oils contg. omega-3-fatty acids are extracted in step(s) by an extractant mixt. of methanol and 1,2-dichloroethane. (Dwg.0/0)
Patent IT-1213699-B (IT)
Title: Cement based mortar for pneumatic application
Inventor: DONATINI FERNANDO
IPC: C04B/
Filed: 1987-10-09
Granted: 1989-12-29
Abstract: The system generates a digital pixel image in a framestore memory (20) by expanding run-length encoded data stored in a command memory (22). Each pixel has a variable characteristic such as its colour, or its depth in a 3-D image. The value of the characteristic for each written pixel is determined from the run-length encoded characteristic. The value of the characteristic for each pixel in the run is determined from a reference parameter which determines the initial value of the characteristic, and a difference parameter which represents the change in the value along the length of the run. The coordinates of the pixel runs may be determined from the coordinates of a preceding run. The initial location and run length for each run are determined relative to the preceding run by delta parameters associated with the current run. The system generates linear colour blends and automatically depth-clips images being written into the framestore (20).
Patent IT-1238385-B (IT)
Title: Automatic test bench for the inspection of hydraulic servo valves for power steering
Inventor: OMODEI IVAN
IPC: G01L/
Filed: 1990-04-05
Granted: 1993-07-16
Abstract: Herein described is an automatic test bench for the inspection of hydraulic servo valves for power steering which consists of a converter which transforms rectilinear movement into rotary movement consisting of a small cart with linear movement and one lever, connected to the entry shaft of the servo valve and moved by said cart, while the exit shaft of the servo valve is maintained clamped, the cart-lever coupling being made with notable play to prevent dangerous moments in the rotation in either one sense or the other of the entry shaft.
Patent IT-1237456-B (IT)
Title: 90 degrees No.4 cutting block for food use.
Inventor: GIORGIO BOTTA
IPC: A21C/
Filed: 1989-01-09
Granted: 1993-06-05
Abstract: The characteristics of this cutting block include an assembly of no.4 pair of cutting rollers with different measurements on 'cross or round' supports with the pairs of cutting rollers set at 90 degrees, with a central pivot that rotates 360 degrees. The 90-degree position of the cutting rollers allows for rapid changes between the desired cuts. Something that is different to the other cutters available commercially and the pairs of cutter rollers are set in series or singularly on a horizontal or vertical plane. Furthermore such a block doesn't need to be mounted or removed to make the cut change.
Patent LV-12785-B (LV)
Title: Transport method of powder-like magnetic materials
Inventor: MIRONOVS VIKTORS
IPC: H02K44/02
Filed: 2000-07-12
Abstract: An invention pertains to the field of powder metallurgy, in particular to the transport methods of powder-like magnetic materials. Method is characterized in that the powder is exposed to electromagnetic wave pulses, alternating pulses with intervals. Besides, an alternation of pulse and interval lengths is controlled depending on type of the material, its properties and necessary lifting height of magnetic powder. Method allows to increase the transportation productivity of powder and lifting height thereof, as well as to expand technological opportunities of powder usage illustrated by 10 example.
Patent LV-13836-B (LV)
Title: System and method for providing on-line communication between students, teachers and
Inventor: LAUDAKS GIRTS
IPC: G06F15/16
Filed: 2008-10-16
Abstract: Present invention relates to information exchange systems, especialy to the systems and methods for providing on-line communication between students, teachers and parents. System is characterized in that it comprises many user devices (1) equipped with displays, and system of servers, which includes at least one web server (4) connected to existing user devices (1), at least one application server (7) connected to the web server (4), and at least one data base cluster (9) connected to the web server (4) and to the application server (7). Invention also includes method to exploit said method between students, teachers and parents.
Patent LV-14609-B (LV)
Title: Lock and key
Inventor: HOLDA JIRI
IPC: E05B31/00
Filed: 2012-03-13
Abstract: In the present invention, there is disclosed a lock and key where the lock has two coaxial cylindrical lock inserts (1) each being rotatably mounted within its casing (2) between which a control tooth (5) of the lock is mounted in the axis. Both the casings are couple with each another in their lower section by a bridge (3), both the cylindrical lock inserts (1) are each provided with a coupling (4), which is at the same time mounted slidably but not rotatably relative to said control tooth (5) in the axis of rotation of said control tooth (5) body. In arcuate radial grooves (12), arranged lengthwise the insert (1) cylindrical body, there is at least one row of spring-loaded lamellas (11) of crescent-like form, which are in these radial grooves (12) slidably guided by means of their projections (13) arranged on outer side of each lamella (11) and engaging with internal radial grooves (20) in the casing (2). The projections (13) being angularly offset relative to each other cooperate with axial grooves (14) performed in inner cylindrical surface of the casing (2). The shift of the projections (13) of the individual lamellas (11) into a corresponding axial groove (14) is controlled by a first encoding (15) of a flat key (7), in which the lamella (11) is resiliently pushed after insertion of the key (7) into the lock. In order to prevent rotation of the cylindrical lock insert (1) after insertion of an authorized flat key (7), a restricting pin (21) is inserted in the region of the cylindrical lock insert (1) inner end. Said restricting pin (21) outwardly protruding portion is slidably arranged in a longitudinal groove (22) performed in the casing (2) and passing over in the direction to the control tooth (5) into the radial groove (23) of the casing (2). In functional position, after insertion of an authorized flat key (7), in which position all the lamellas (11) are angularly displaced such that their outer projections (13) are aligned with the longitudinal axial grooves (14), and further after pushing the insert (1) inside the lock by the action of the flat key (7) stem stop portion (26), the restricting pin (21) is situated in the radial groove (23) of the casing (2) in a defined axial position for subsequent turning of the insert (1) inside the casing (2).
Patent ME-01112-B (ME)
Inventor: MACHNIK DAVID
IPC: C07D471/04
Filed: 2009-03-20
Abstract: VIŠESUPSTITUISANI6-HETEROARILIMIDAZO[1,2-α] PIRIDIN DERIVATI, NJIHOVO DOBIJANJE I NJIHOVATERAPEUTSKA UPOTREBA       Jedinjenjaformule (I):    (I) gde: R 1 predstavlja fenil ili naftil grupu, ili heteroaril grupu ili heterocikličnugrupu, po izboru  supstituisanu sa jednimili više atoma ili grupa; Het predstavlja monocikličnu heteroaril grupu kojasadrži od 5 do 6 atoma, uključujući od 1 do 3 heteroatoma koji su odabrani od  N, O i S; X predstavlja od 1 do 3supstituenta, koji su međusobno jednaki ili različiti , koji su odabrani od  vodonika, halogena, (C 1 ‑C 10 )alkil,(C 1 ‑C 10 )alkoksi, NRaRb, nitro i cijano, moguće je da  (C 1 ‑C 10 )alkil budu poizboru  supstituisani sa jednom ili višegrupa koje se biraju od  halogen, (C 1 ‑C 10 )alkoksi,(C 1 ‑C 10 )haloalkoksi, NRaRb ili hidroksil; R predstavlja,u položajima 3, 5, 7 ili 8 imidazo[1,2-a]piridina, od 1 do 4 supstituenta, kojisu međusobno jednaki ili različiti , koji su odabrani od  vodonika, halogena, (C 1 ‑C 10 )alkil,halo(C 1 ‑C 10 )alkil i (C 1 ‑C 10 )alkoksi; R 2 i R 3 predstavljaju, nezavisno jedan od drugoga, atom vodonika, (C 1 ‑C 10 )alkilgrupu, po izboru  supstituisanu sa nekomRf grupom, ili aril grupu, koja je po izboru supstituisana; R 4 predstavlja atom vodonika, (C 1 ‑C 10 )alkilgrupu, po izboru  supstituisanu sa nekomRf grupom, ili aril grupu, koja je po izboru supstituisana, u obliku baze ili neke adicione soli sa nekom kiselinom.   Njihova terapeutska upotreba i postupak za njihovusintezu.
Patent NO-140458-B (NO)
Title: Metallpulver til bruk ved termisk spraying samt fremgangsmaate for fremstilling derav
Inventor: FUSTUKIAN DAVID A W
IPC: B22F1/18
Filed: 1971-03-18
Abstract: Metallpulver til bruk ved termisk spraying samt fremgangsmåte for fremstilling derav.
Patent NO-134411-B (NO)
Inventor: HOFER P
IPC: E01B2/00
Filed: 1972-10-05
Abstract: Fremgangsmåte ved og anordning for forbindelse. av elektriske ledere til skinner for transportbaner.
Patent NO-145089-B (NO)
Title: Kurv for flere formaal, spesielt kleskurv.
Inventor: EGGER CHARLOTTE
IPC: D06F95/00
Filed: 1975-10-17
Abstract: Kurv for flere formål, spesielt kleskurv.
Patent NO-151769-B (NO)
Title: Vaeske for konservering ved perfusjon av et organ bereget for transplantering, og anvendelse av vaesken
Inventor: YOKOYAMA KAZUMASA
IPC: A01N1/02
Filed: 1981-09-24
Abstract: Et organ som skal transplanteres, så som nyre, kan effektivt preserveres ved perfusjon i betydelig lang tid ved anvendelse av et perfusat som fremstilles ved å blande en Ringers oppløsning modifisert ved økning av kaliumion til 8-20 mekv./liter, en stabil perfluorkarbonforbindelse-emulsjon og albumin, slik at konsentrasjonen av perfluor-karbonforbindelsen er 7,5 til 12,5% (vekt/volum) og for albumin 1 til 8% (vekt/volum) basert på perfusatet.
Patent NO-160941-B (NO)
Inventor: REDIEN JEAN PAUL
IPC: E06B3/68
Filed: 1984-01-20
Abstract: A frame for a door or window with at least one brace, manufactured from hollow, preferably heat-insulated composite sections. A filler is positioned at the butt joint between a frame section and a brace section. The filler matches the contours of a groove in the frame section. The filler extends into the brace section. The filler has an intermediate filler slot that extends parallel to the axis of the brace section. The filler also has a filler bore that extends parallel to the axis of the frame section and empties into the filler slot. Putty is forced into the filler bore and slot to seal off the butt joint from the front of the frame.
Patent NO-174700-B (NO)
Inventor: BECKER WOLFGANG
IPC: B42D25/00
Filed: 1986-10-10
Abstract: The present invention relates to a data carrier (identification card, bank card, credit card, etc.) in which information is provided in an inner volume area by means of a laser beam, the information being visible in the form of changes in the optical properties of the carrier material due to an irreversible change in the material caused by the laser beam and to a method for producing the data carrier and for testing it.
Patent NO-170938-B (NO)
Inventor: ANGST CHRISTOF
IPC: A61P25/28
Filed: 1987-02-13
Abstract: Phosphorus-contg. unsaturated amino acids of formula (I) and their salts are new: R1 = hydroxy or etherified hydroxy; R2 = H, alkyl, hydroxy or etherified hydroxy; R3 = H, alkyl, haloalkyl, hydroxyalkyl, lower alkoxyalkyl, arylalkyl, lower alkenyl, halogen or aryl; R4 = H, alkyl or arl; R5 = H or alkyl; R6 = carboxy or esterified or amidated carboxy; R7 0 amino opt. substd. by alkyl or aryl; A = opt. alkyl-substd. 1-3C alpha, omega-alkylene or a direct bond; B = methyleue or direct bond; provided that A and B are both direct bonds. Specifically claimed are 9 cpds. including E-2-amino-5- phosphono-3-pentenoic acid, E-2-amino-4-methyl-5-phosphono -3-pentenoic acid, and E-2-amino-4-methyl -5-phosphono-3-pentenoic acid ethyl ester.
Patent NO-171738-B (NO)
Inventor: PERCHERON JEAN-CLAUDE
IPC: E04C5/08
Filed: 1988-11-24
Abstract: The cable lines (1) forming the stay cable, mounted so as to be able to work and to be dismantled independently of one another, each consist of an assembly of parallel or twisted steel wires, surrounded by a sheath (3) in polyethylene, polyamide or a corrosion-resistant metal, with interposition of a filling material, such as an epoxy-type resinous pitch, or a wax. The ends of the cable lines (1), stripped of their sheaths (3) for their individual anchoring on a perforated block (6) are embedded in a protective grease. The grease chamber (A), formed by a sleeve (7) connected to the anchoring block (6), is closed by a stuffing-box seal (8) traversed by the cable lines (1), which are sheathed again, and comprising an outer plate (82) which, controlled by clamping rods (10) which can be actuated from outside the anchoring block (6), presses an elastomer cushion (83) against an inner plate (81) bearing on spacer rings (11) arranged in the chamber (A). <IMAGE>
Patent NO-178974-B (NO)
Inventor: SCHUR FRITZ
IPC: C12G3/08
Filed: 1989-08-03
Abstract: A process for the production of beer with a low alcohol content is described. The process comprises preparing a wort by boiling and adding ascorbic acid to such wort prior, during, or after boiling, so long as the wort remains hot. The process can be employed according to the invention for the production of non-alcoholic beer by the yeast cold contact process, in which yeast recovered from a fermentation process is brought into contact with the wort at a low temperature below 0 DEG  C. As a rule, the non-alcoholic beer produced by this process imparts an unpleasant and bitter aftertaste. By adding ascorbic acid to the boiling wort, the bitter aftertaste is completely eliminated.
Patent YU-45797-B (YU)
Title: Kalup za izdelavo standardnih cementnih preizkušancev s čvrsto vkleščenimi pregradnimi lamelami
Inventor: IVAN CEROVSEK
IPC: E04G9/00
Filed: 1986-09-02
Abstract: KALUP ZA IZDELAVO STANDARDNIH CEMENTNIH PREIZKUŠANCEV S ČVRSTO VKLEŠČENIMI PREGRADNIMI LAMELAMI, katerega podstavek (1) ima ravno obdelano zgornjo pkoskov, na desni strani pa stanj vanj s tesnim prilegom vstavljena dva oporna stebrička (2) v razmiku dveh debelin preizkušanca, ki imata na polovični višini prečke (3) po eno stožčasto zavrtino (14), ki sta obrnjeni proti oporniku (12), njuni osi pa sta vzporedni; opornik (12) ima na polovici višine prečke (7) navojno izvrtino, skozi katero je uvit vijak (11) s stožčastim koncem (15), prečka (3), ima na desni navpični steni in v enakem razmiku kot sta razmaknjena oporna stebrička (2), dva stožčasta nastavka (13), katerih osi sta nad polovico višine prečke (3) od spodnje ploskve, os zavrtine (10) je nad polovico višine prečke (7) od spodnje ploskve, obe prečki (3) in (7) pa imata na notranji vertikalni steni v razmiku debeline preizkušanca in ene lamele (5) izdelane žlebove označene s tem, da so pravokotnega preseka s poševnim dnom, globine žlebov (4) pa so večje od zgoraj navzdol, da so v dnu žlebov (9) prečke (7) utori (19), ki so krajši od dolžine žlebov (9) v katere so vlaženi elastični vložki (8) katerih višine so večje od globine utorov (19) dolžine in širine pa enake pri čemer so konci lamel (5) trapezasto oblikovani.
Patent YU-41382-B (YU)
Title: Acetylene reactor
Inventor: WOLFGANG PRIESEMUTH
IPC: C10H21/00
Filed: 1981-12-14
Abstract: 1. An acetylene-gas reactor, particularly for supplying a motor vehicle engine, comprising a calcium-carbide storage container (6), a reaction vessel with water supply device (10) and a sump (14) for the calcium-hydroxide sludge or lime dust produced, characterised in that disposed in vertical alignment under the carbide container (6) is a tubular guide of sievelike construction which is enclosed by the reaction vessel (1) and which is surrounded by an annular jet nozzle arrangement (10) for the supply of the water necessary for the reaction and discharge, via a funnel (13) disposed below the guide (8, 9) into a tubular sump (14) and that the reaction vessel (1) encloses the carbide container (6), the jet nozzle arrangement (10), the water storage tank (20) and the sump (14).
Patent RS-50228-B (RS)
Inventor: BORAK DURO
IPC: F02M31/12
Filed: 2001-04-18
Abstract: Samoregulišući grejač prečistača dizel goriva za motore SUS posebno goriva za ubrizgavanje u cilindre tzv. dizel motora , koji je postavljen u kućištu (1) prečistača, a predviđen je za samoregulisano zagrevanje pomenutog goriva posebno u uslovima eksploatacije pri temperaturama ispod nule i do nule, pri čemu temperatura zagrejanog goriva ne sme da bude iznad 30°C, kao nivoa ispod samozapaljenja ovog goriva, naznačen time, što obuhvata kućište (1) prečistača u kome je ugrađen tanki folijski grejač (2), fiksiran uz unutrašnju bočnu stranu kućišta (1) prečistača između izolacione trake (3) i perforirane trake (7), pri čemu je jedan električni izvod tankog folijskog grejača (2) električno povezan sa jednim električnim izvodom samoregulišućeg otpornika (8) postavljenog u kućištu (1) i što su drugi električni izvod samoregulišućeg otpornika (8) i drugi električni izvod tankog folijskog grejača (2), električno povezani sa zakovicama (5) i utičnicama (6), koji su preko izolacionih prstenova (4) postavljeni u otvore na zidu kućišta (1) prečistača goriva. Prijava sadrži još 1 nezavisan patentni zahtev.
Patent ZA-839660-B (ZA)
Title: High voltage electrical apparatus
Inventor: PINCHING ALBERT ARTHUR
IPC: H01B3/44
Filed: 1983-12-28
Abstract: Electrical apparatus in which a body of insulating material is subjected to an electrical stress along its surface of at least 10<4> V/m is distinguished in that the body comprises particulate calcium carbonate dispersed in a compatible thermoplastic or elastomeric matrix based on a carbon-chain polymer. Surprisingly this inexpensive white and apparently inert filler is capable of providing compositions that have a failure voltage (according to the tracking resistance test set out in ASTM specification D-2303) of 3.0 kV and above.