baber/WOPTO huggingface dataset:
Patent FI-120357-B (FI)
Inventor: SIMMONS LAURA C
IPC: C12N15/62
Filed: 1997-08-29
Granted: 2009-09-30
Abstract: The instant invention discloses the unexpected result that mutant signal sequences with reduced translational strength provided essentially complete processing and high levels of expression of a polypeptide of interest as compared to wild type signal sequences, and that many mammalian polypeptides require a narrow range of translation levels to achieve maximum secretion. A set of signal sequence vectors provides a range of translational strengths for optimizing expression of a polypeptide of interest.
Patent FI-109429-B (FI)
Inventor: JAERVENKYLAE JYRI
IPC: B29C53/36
Filed: 1998-11-09
Granted: 2002-07-31
Abstract: The invention relates to a method of making a pipe, and a pipe. The pipe consists of an outer pipe (2) providing mechanical strength and of an inner layer providing tightness. The outer pipe (2) and the inner layer are formed from semi-finished products that require substantially less space during storage than finished pipes. The outer pipe (2) is made for example by winding a profile (1) into a helix. The outer pipe (2) is coated from the inside before it is taken into use by inserting a flexible inner lining (4) into the pipe. The inner lining (4) is rounded against the outer pipe (2), and the inner lining (4) and the outer pipe are joined so that the inner lining (4) forms an inner layer acting as a flow surface.
Patent HU-186921-B (HU)
Inventor: SZAKACS SANDOR
IPC: C09D9/00
Filed: 1982-04-02
Abstract: A találmány tárgya jelek, betűk, szavak lefedésére szolgáló irodai korrekciós szer, mely egy vagy több, pigment, célszerűen titán-dioxid és/vagy alumíniumpor, kötőanyag és valamilyen cejlulóz alapú - előnyösen karboxi-metil-cellulóz vagy metil-cellulóz - védőkolloid diszperzióját tartalmazza. A szer kötőanyagként a készítmény teljes mennyiségére számítva 10-16 s% mennyiségben 80-90 % akrilsavból, 10-20 %-ban pedig metakrilátból álló kopolimert, és oldószerként 30-75 s% mennyiségben rövidszénláncú alkohol, előnyösen izopropilalkohol és víz 1:3-1:8 arányú elegyét tartalmazza. 186921 -1-
Patent HU-192683-B (HU)
Inventor: HARASZTI TIBOR
IPC: A01K11/00
Filed: 1985-03-25
Abstract: A találmány tárgya: füljelző címke állatok egyedi azonosítására. A jelzőcimke két darabból áll, éspedig a célszerűen rugalmas és szívós anyagú jelzócimkéból (1) továbbá egy tüskéből (7) amely a végére erősített tárcsával (12) együtt a jelzőcimke ellendarabját képezi. A jelzőcimke (2) felső részén lévő gomb (2) fenékperemére (3) rugalmas, fémből készült rögzítőtárcsa (4) illeszkedik, melynek keresztalakú kivágásán (5) át halad az állat fülének porcos részét átlyukasztó tüske (7). A rögzítőtárcsa (4) kivágása mellett visszamaradó negyedkor alakú tárcsarészek enyhén felfelé domborodnak a tárcsa síkjától, így a tüske (7) válla a kivágásban fennakadva, a jelzőcimkét (1) kiesés ellen biztosítja. j   A krómozott felületű    fémrészek higiénikusak, sj-   így sem berágódás,    sem gennyesedés nem *   következhet be.  192683 -1-
Patent HU-191530-B (HU)
Inventor: KARACSONYI GYOERGY
IPC: D02G3/34
Filed: 1983-06-14
Abstract: fonal előállítására, legalább részben csomó-, ill.
noppképző anyago(ka)t tartalmazó, adott esetben
más, eltérő jellegű szálasanyag-szalagokkal is társított
legalább egy kártolt pamutszalag nyújtásos elvékonyítása,
előfonása, majd fonása útján.
Lényege, hogy csomó-, ill. noppképző anyag(ok)-
ként főként különböző szennyezőket és/vagy hulladékanyago(ka)t
tartalmazó kártolt pamutszalagot
használnak, amelynek előállításához a pamuttisztítás
és -kártolás során visszamaradó jelentős szálasanyag-tartalmú
hulladékanyagokat összegyűjtik,
azokból tisztítóberendezésen történő átbocsátással
bundát képeznek, majd a bundát célszerűen csiszolatlan,
tompa fogú kártológépen vezetik át.
Patent HU-200533-B (HU)
Inventor: ZWEEGERS PETRUS WILHELMUS
IPC: A01D82/00
Filed: 1980-08-29
Abstract: Vorrichtung zum Quetschen von Erntegut mit zwei um zueinander im wesentlichen parallele Drehachsen drehbaren Quetschwerkzeugen. Durch die Erfindung soll der Aufwand fuer die Vorrichtung gesenkt, ein kontinuierlicher Arbeitsablauf sowie eine gleichmaessige Quetschung des Erntegutes gewaehrleistet werden. Die Fuehrung und der Antrieb der Quetschwerkzeuge sollen einfach in der Konstruktion und in der Arbeitsweise gestaltet sein. Erfindungsgemaess wird das dadurch erreicht, dass das eine Quetschwerkzeug eine Anzahl von sich im wesentlichen in seiner Laengsrichtung erstreckenden, in gleichmaessigen Umfangsabstaenden angeordnete Leisten und das andere Quetschwerkzeug sich von der Drehachse auswaerts erstreckende, flexible Fluegel aufweist.
Patent HU-196238-B (HU)
Title: Process for producing mature hbsag surface antigen and vaccine against hepatitis b virus
Inventor: LEVINSON O ARTHUR
IPC: C12N15/86
Filed: 1982-08-30
Abstract: A vertebrate cell culture is enabled to produce a desired polypeptide by transformation with a vector whose DNA comprises (a) means for replication in the host; (b) a promoter; and (c) a gene encoding the polypeptide, under the control (b). 
     E.g. a recombinant genome was constructed comprising DNA from (a) the SV40 virus with excision of the VP-1 gene (-hence it is noninfective); (b) the HBsAg gene; and (c) pBR322 (rendering it TET R , and allowing cloning in E. coli). Cells of the CV-1 line of monkey kidney fibroblasts were co-infected therewith and incubated. Lysis occurred, liberating HBsAg which is required for hepatitis vaccine. 
     Non-lytic vectors for expressing HBsAg were also prepared.
Patent HU-198712-B (HU)
Title: Process for producing 2-oxo-1-///substituted sulfonyl/-amino/-carbonyl/-azetidines and pharmaceutical compositions containing them as active components
Inventor: BREUER HERMANN
IPC: C07D413/14
Filed: 1987-06-22
Abstract: Antibacterial activity is exhibited by  beta -lactams having a 3-acylamino substituent and having in the 1-position an activating group of the formula <CHEM> e
Patent HU-184483-B (HU)
Title: Method and apparatus for improving the biological availability of materials available as nutrient
Inventor: BENEDEK JOZSEF
IPC: A23L11/00
Filed: 1981-10-06
Abstract: Method and apparatus for improving the nutriment by delivering it through a microwave energized area (working area) at an appropriately chosen moisture content, and an appropriately chosen delivery speed using a known transport means. The nutriment is, if necessary, in the first step conditioned to the wanted moisture content and may also subsequently be flavoured before subjecting it to the said microwave treatment under continuous motion. Post-treatment such as grinding, roasting, drying, conserving may also be performed, if wanted. The equipment according to the invention comprises a conditioning chamber, a microwave energizeable working area, and a continuously working transporter such as a gravity path, a vibrational path, or a conveyor.
Patent HU-193147-B (HU)
Title: Process for sulfenizing carbamate derivatives in the presence of trialkyl-amine and sulfur-dioxide
Inventor: AGER JOHN W
IPC: C07C381/06
Filed: 1981-10-30
Abstract: An improved process is disclosed for sulfenylating carbamates in the presence of a solvent and acid acceptor, in which the reaction between a carbamate and a sulfenyl halide is conducted in the presence of a catalytic amount of a complex of a lower alkylamine and sulfur dioxide. Several methods for preparing and utilizing the complex in the reaction are disclosed and exemplified.
Patent HU-188392-B (HU)
Inventor: PANCZA JANOS
IPC: A01G17/02
Filed: 1983-12-07
Abstract: A találmány eljárás szőlő és hasonló állókultúrák környezetvédő telepítésére és/vagy felújítására, főleg homoktalajokon. A találmány szerint úgy járunk el, hogy az intenzív gépi művelésnek megfelelő nagy sortávok helyét kijelöljük és kitűzzük, majd pl. árokásógéppel célszerűen minden második sort mintegy 60-120 cm mélyen kitermeljük, az árokba az előzetesen egyenletesen összekevert szervestrágya-tőzeg-műtrágya adagot koncentráltan kijuttatjuk, az árkokat betemetjük, majd az elmaradt sorokból termeljük ki a földet, trágya és hatóanyag kijuttatása után a sorokat betemetjük és a telepítést oly módon végezzük el, hogy a telepített növény talpgyökérzete és a koncentráltan kiadott szervesanyag között legalább 10-15 cm-es földréteget hagyunk. -1-
Patent HU-198780-B (HU)
Inventor: BANYAI JOZSEF
IPC: F16K1/12
Filed: 1984-05-21
Abstract: A találmány tárgya axiális álömlésü, kúpfogaskerékpáros belső hajtású szelep, amelynek a ház belsejéhez bordák révén erősített, 5 a házzal egytengelyű hüvelye, a hüvelyben egyenesben vezetett, a házzal és a hüvellyel egytengelyű záróteste, a ház hossztengelyére merőlegesen a ház falán keresztülnyúló tengely belső végére erősített kúpfogaskereke, 10 e kúpfogaskerékkel kapcsolódó további kúpfogaskerekek, valamint a második kúpfogaskerékkel kapcsolódó, a végén a zárótesthez csatlakozó menetes mozgató orsója van. A találmány szerinti szelep lényege, 15 hogy hajtóművének az egyik végén megnövelt átmérőjű külső menetes, másik végén zárótestet (4) mereven tartó orsója (6), az orsó (6) menetes szakasza (15) melletti hengeres részen siklóretesze (15), az orsó (G) 20 külső menetes szakaszával (15) kapcsolódó belső menetes, agyrészének (12) külső hengerfelületével a hüvely (2) egy kisebb átmérőjű furatában központosán, és hátsó homlokfelületével a hüvely (2) egy nagyobb át- 25 mérőjű furatának vállán (14) tengelyirányban megtámasztva, rorguthatóan tartott első, nagyobb átmérőjű tányér kúpkereke (101, e tányér kúpkerék (10) belső homlokfelületétől ágyazó tárcsa (17) révén elválasztott, az őrsi (6) hengeres részén levő siklóreLeszt (16) magán a szelep hossztengelye irányában eltolhatóan átbocsátó hornyos furattal kiképzett, a nagyobb átmérőjű tányér kúpkeréktól (10) függetlenül forgatható kisebb átmérőjű tányér kúpkereke (11), a kisebb átmérőjű tányér kúpkerék (11) agyrészének a zárótest (I) felé levő homlokfelületél ágyazó tárcsán (18)   keresztül tengelyirányú erőkkel szemben tartó, a hüvelyhez (2) erősített zárótárcsája (19)   , valamint a házba (1) és a hüvelybe (2) benyúló, a szelep hossztengelyét tartalmazó síkban levő közős tengely (7) belső végére, egymás alá erősített két kúpkereke (8, 91 van, amelyek közül az egyik a nagyobb átmérőjű tányér kúpkerékkel (10), a másik, a belső pedig a kisebb átmérőjű tányér kúpkerékkcl (11) kapcsolódik. (1. ábra) HU 198780 B A leírás Le/jetlelnie: 5 oldal, 1 raj::, 7 ábra -1-
Patent LV-12862-B (LV)
Title: Hand supporting loop for skiing pole and attachement thereof
Inventor: STURMANIS ALFREDS
IPC: A63C11/12
Filed: 2002-03-22
Abstract: An invention relates to the sports, in particular to the cross-country skiing poles. Its objective is to lessen the time necessary to put the hand into the loop of pole. The main point of invention: in order to ensure fast catching of pole end by hand, the loop is formed at least by one round spring or flat spring, which can be in form of flexible tape or closed flexible sleeve having one or more sealed chambers therein, said chambers being, e.g., blown up by air. Besides, the springs or flexible tape are covered with leather or suchlike material upholstery and fixed to the pole's body. The loop thereby does not close up after the hand is drawn out and constantly is opened not flattening against the pole body. In order to attach the loop to the pole end, several modifications of loop attachment are offered (fig.1) including alternative of its supporting by cross-piece (1) expanded in horizontal plane and provided with turnable component (9) which can be rotated through an angle (17) in respect of horizontal part of cross-piece (1) by loosing or tightening a nut (10).
Patent LV-13050-B (LV)
Title: Vacuum installation for lowering the level of underground water
Inventor: SAFIRS VLADIMIRS
IPC: E02D19/10
Filed: 2003-05-09
Abstract: An invention relates to the field of construction of bases and foundations, more particularly, to an installation for drying foundation pits and other underground workings by lowering the level of underground water, using jet-type priming pumps. The goal of the invention is to raise the mobility of the installation and the efficiency of water pumping rate control from the ground. The installation of vacuum water-lowering shown schematically in the drawing comprises a circulation tank (1), a centrifugal pump (2) whose rotor is connected with a driving engine (3), and an inlet chamber (4) with ejectors (5), the inlet of the centrifugal pump (2) being connected through an inlet pipe (6) with the cavity of the circulation tank (1), and the outlet of pump (2) being connected through a pressure piping (7) with the inlet chamber (4). Besides, the inlet chamber (4) is connected through the ejectors (5) with cavity of the circulation tank (1), and it is connected with needle filters (9) through a collector (8). The circulation tank (1) is supplied with a discharge pipeline (10) whose inlet is located below the level of the upper of ejectors (5) but above the level of the inlet pipe (6) of the centrifugal pump (2). According to the invention, as the driving engine (3) an internal combustion engine with a fuel feeding regulator (11) is used, to the input of which a setting signal omega is applied. The invention allows the water-lowering installation to be employed independently under field conditions and in the places that are difficult to access.
Patent LV-13453-B (LV)
Title: 2-(quinoxalin-5-ylsulfonylamino)-benzamide compounds as cck2
Inventor: ALLISON BRETT D
IPC: C07D401/12
Filed: 2006-02-08
Abstract: Certain amidophenyl-sulfonylamino-quinoxaline compounds are CCK2 modulators useful in the treatment of CCK2 mediated diseases.
Patent LV-13719-B (LV)
Title: Device for thermal protection of outlet wires in power network
Inventor: GREIVULIS JANIS
Filed: 2008-03-12
Abstract: The invention relates to electrical engineering and could be applied for defending of relays and automation equipment. Its aim is to control temperature of contact outlets of distribution wires in the terminal box. Voltage divider 1 is connected to the supply of the terminal box. The output of the divider is connected to the single-phase bridge rectifier 2 with posistor 4 and capacitor 5 in series, the charging and discharging processes of which are formed by help of switch resistor 6 and transistor 7. Control resistor 8 is swiched in the discharging circuit of capacitor 5 and connected to the local responding part 9 of protective relay 10. The amplitude of the capacitor signal during the discharging process depends only on its accumulated energy defined with resistance of posistor 4. The increasing of its resistance depends of the temperature increasing of the connecting wires. With a particular decreasing of the signal amplitude the local responding part 9 of the protection relay is unlocked. The technical solution offered allows to avoid ignition of distribution wires of contact outlets.
Patent NO-147057-B (NO)
Title: Okklusivpessar og fremgangsmaate til dets fremstilling
Inventor: ZIETS GEORGE
IPC: A61F6/08
Filed: 1978-04-28
Abstract: Okklusivpessar og fremgangsmåte til dets fremstilling.
Patent NO-151476-B (NO)
Inventor: ENGELS HANS
IPC: E06B3/02
Filed: 1981-03-03
Abstract: 1. A fitting for an all-glass leaf of a door, window or the like, said fitting being in the form of a hinge, made up of one fitting body (1 ; 20 ; 30) to be fixed on one side of the glass leaf (4) and having a turning bearing (3), and of a keeper body (10 ; 21 ; 31), that is to be fixed on the other side of the glass leaf, said bodies being clamped together by a screw (24) running through a single drilled hole in the glass leaf (4), characterized in that parts (9 ; 22 ; 32) of the fitting, that are run through the drilled hole in the all-glass leaf (4) and come up against the other of the two fitting parts, are so designed that they are keyed into each other for stopping any twisting of the fitting body (1 ; 20 ; 30) and of the keeper body (10 ; 21 ; 31) in relation to each other.
Patent NO-169580-B (NO)
Inventor: HARDOUIN JEAN-PIERRE
IPC: B21C25/02
Filed: 1985-12-13
Abstract: An extrusion die has a die aperture which is negatively tapered essentially throughout its length at an angle of at least 1 DEG  such that any friction stress between the die lands and metal flowing through them is negligible, the length of the lands being not more than 2 mm so that fouling does not significantly take place thereon during extrusion. Faster extrusion speeds can be achieved, particularly when extruding aluminium alloy having a shear strength of from 1.2 to 4.0 Kg/mm2 at 500 DEG  C.
Patent NO-167430-B (NO)
Inventor: SONI PRAVIN L
IPC: B29C61/06
Filed: 1986-10-02
Abstract: Heat-recoverable electrical devices, particularly for covering telephone and other cable splices, comprise (a) a component composed of a PTC conductive polymer which has little or no cross-linking, (2) an adjacent heat-recoverable component composed of a PTC or ZTC conductive polymer which has a relatively high level of cross-linking, and (3) electrodes which can be connected to a power supply so that current passes through the components and causes recover of the device. Preferably a continuous laminar PTC component having little or no crosslinking is sandwiched between two crosslinked continuous laminar ZTC components. Such a device is illustrated in Figure 1.
Patent NO-171737-B (NO)
Inventor: WALKER JAMES L
IPC: D21H17/43
Filed: 1986-10-02
Abstract: Saturated paper products characterized by an excellent balance of toughness, strength, fold, tear and delamination resistance comprising a sheet of loosely bonded cellulose fibers saturated with an aqueous emulsion prepared by the emulsion polymerization of:a) a vinyl ester of an alkanoic acid interpolymerized with:b) 5 to 30% by weight of ethylene;c) 0.5 to 6% by weight of an N-methylol containing copolymerizable monomer;d) 1 to 5% by weight of an olefinically unsaturated carboxylic acid;e) 0.2 to 3% by weight of a latex stabilizer; andf) 0 to 1% by weight of at least one polyunsaturated copolymerizable monomer.
Patent NO-174394-B (NO)
Inventor: SCHMITT-WILLICH HERIBERT
IPC: C08G69/48
Filed: 1989-02-27
Abstract: Polymers consisting of a ligand containing carboxylic acid groups and optionally of at least one ion of an element of atomic numbers 21- 29, 42, 44 or 57-83 and optionally cations of inorganic and/or organic bases, amino acids or amino acid amides are valuable complexing agents and complexes for diagnostics.
Patent NO-179289-B (NO)
Inventor: BALZER DIETER
IPC: C11D1/83
Filed: 1991-11-14
Abstract: Conventional liquid dishwashing agents are predominantly produced on a petrochemical basis and have the disadvantage of incomplete biodegradability. A liquid, foaming detergent which has all the beneficial properties of conventional dishwashing agents while, at the same time, being well tolerated by skin and very environmentally compatible is now proposed. The surfactant ingredients are 5 - 40 % alkyl polyglycoside and 0.1 - 2.9 % anionic surfactant and 0 - 3 % other surfactants.
Patent NO-180310-B (NO)
Inventor: BERGER JOHANN
IPC: D04B25/06
Filed: 1994-02-14
Abstract: PCT No. PCT/EP92/01865 Sec. 371 Date Mar. 23, 1994 Sec. 102(e) Date Mar. 23, 1994 PCT Filed Aug. 14, 1992 PCT Pub. No. WO93/06288 PCT Pub. Date Apr. 1, 1993.A device for clamping and guiding crocheting needles for a crocheting machine. On the one hand a clamping device for the crocheting needles and on the other hand a knock-over comb are to be created, which permit a very fine spacing. To this end, in the bottom part (27) and in the clamping cover (29) of a clamping device (12), opposite, straight needle beds (73, 74) are arranged closely together. The needle beds (73, 74) have wall surfaces that are inclined in a V-shape. A knock-over comb (20, 80) fixed to the machine has upwardly projecting teeth (86) for the crocheting needles. The spacing of the needle beds and guide elements is at least 12, in particular 14 per centimeter of machine width. The holding bar (23) fixed to the machine and the bottom part (27) of the clamping device (12) have recesses, in particular chambers (77, 76) that face one another, which permit the clamping device to move too close to the teeth (86).
Patent YU-46079-B (YU)
Title: Postupak za dobijanje 1-tercijarnih-alkil-supstituisanih naftiridin-i hinolin-karboksilnih kiselina
Inventor: DI CESARE P
IPC: C07D487/08
Filed: 1987-10-08
Abstract: formule: njihovih opticki izomera i racemskih smesa, gde R1 predstavlja tercijarnu alkil grupu izabranu od -C(CH3)3,-(CH3)2CH2CH3,-C(C6H5) (CH)2, -C(C6H5) CHRCH2, -C(CH3)CCHRCH2, -C(CH3)CH2CH2CH2, -C(CH3)=CH2 I gde je R H ili CH3 i gde t-alkil grupa moze da sadrzi 1 do 3 halogena atoma; X je clan grupe halogena izabranih od F, Cl i Br i trihaloalkil grupa izabranih od CF3 i CCl3; Y je iyabrano od CH, CF, CCL, CBr i N; i Z je izabrano od gde W predstavlja NR2, S ili O, gde je R2 nezavisno izabrano od H, nesupstituisanog i supstituisanog C1-4alkila, pri cemu su supstituenti nezavisno izabrani od 1 do 3 hidroksi, fluoro, hloro, amino, alkilamino, trifluoroacetilamino i fenil grupe; i gde A,B,C i D predstavljaju nezavisno H; nesupstituisani ili supstituisani XC1-4-alkil, pri cemu su supstituenti nezavisno izabrani od 1 do 3 hidroksi, fluoro, hloro, amino, alkilamino, trifluoroacetilamino i fenil grupe; i gde A, B, C i D predstavljaju nezavisno H; nesupstituisani ili supstituisani C1-4-alkil, pri cemu su supstituenti nezavisno izabrani od 1 do 3 hidroksi, fluoro, hloro, amino, alkilamino, trifluoroacetalamino i fenil grupe; amino; hidroksi; fluoro; hloro; i fenil grupu; i gde je n 0,1,2 ili 3, a kada je grupa R2N prisutna i svaki od R2 je razlicit od H, onda je grupa R2 nezavisno izabrana od CH3 i C2H5; pod uslovom da, kada R1 predstavlja -C(CH3)CHRCH2, Z ne bude R2HN(CH2)n i njihovih farmaceutski prihvatljivih adicionih soli sa kiselinama i baznih soli, naznacen time, sto jedinjenje formule: u kojoj su R1, X i Y kao sto je definisano gore, X je jednako X ili predstavlja organsku odlazecu grupu kao sto je alkilsulfonil, arilsulfonil ili aralkilsulfonil, i M je vodonik, C1-4 alkil ili jon alkalnog ili zemnoalkalnog metala, reaguje sa aminskim jedinjenjem formule: Z-H (III) u kojoj je Z kao sto je definisano gore, da bi se dobilo jedinjenje formule I koje se, prema potrebi, prevodi u svoju adicionu so sa kiselinom ili u svoju baznu so.
Patent YU-45812-B (YU)
Title: Postupak za izradu građevinskih elemenata gde se kao sirovinska komponenta koristi aktivirani elektrofilterski pepeo
Inventor: LJUBINKO DRAGICEVIC
IPC: C04B18/08
Filed: 1986-12-15
Abstract: POSTUPAK ZA IZRADU GRAĐEVINSKIH ELEMENATA GDE SE KAO SIROVINSKA KOMPONENTA KORISTI AKTIVIRANI ELEKTROFILTERSKI PEPEO, naznačen time, što se smesi koja se sastoji od 90-97% mas. aktiviranog elektrofilterskog pepela, 3-10% mas. hidratisanog kreča i/ili 5-10% karbidnog kreča dodaje voda u odnosu aktivirani elektrofilterski pepeo + hidratisani i/ili karbidni kreč prema vodi = 0,20 -0,30., što se mešavina meša, što se izmešana masa oblikuje u željene dimenzije uz primenu pritiska presovanja od 25-100 MPa, za hidratisani kreč, odnosno 30-100 MPa, za karbidni kreč, pri čemu se oblikovan i ispresovan gradjevinski materijal hidrotermalno obradjuje na temperaturi od 50-95 C u vremenu od 4-10 sati za hidratisani kreč, odnosno 6-15 sati za karbidni kreč.