baber/WOPTO huggingface dataset:
Patent HU-189789-B (HU)
Inventor: BAYER JOZSEF
IPC: F24F3/10
Filed: 1983-12-13
Abstract: A találmány szerinti berendezésnek adagólókamrák (23a, 23b) és csatlakozóvezetékek (24a, 24b) térfogatából álló legalább két adagolótere (21, 21b) van. A csatlakozóvezetékekbe (24a, 24b) zárószervek (13a, 13b,14a,l4b,15a,l5b,16a,16b) vannak beépítve, amelyek működtető és vezérlőegységekkel vannak összekötve. Az adagolókamrák (23a, 23b) nagyobb átmérőjű csővezetékből vannak, mint a csatlakozóvezeté- kek (24a,24b) és az adagolókamrák (23a,23b) belső és külső felületének nagy része hőszigeteléssel van ellátva. A csatlakozóvezetékeken (24a,24b) át az pdagolókamrák (23a,23b) egyik vége nagynyomású hidegvízvezetékkel (3) és hidegvíztárolót (10) töltő vezetékkel, másik vége pedig nagynyomású melegvízvezetékkef(4) és melegvíztöltő szivattyún (12)átmelegvíztárolóval (1 l)van összekötve.  Z abr» -1-
Patent HU-195225-B (HU)
Title: Process for producing crystalline monohydrate of cefem compound
Inventor: LORD GARY E
IPC: C07D501/46
Filed: 1986-11-05
Abstract: Crystalline (7R)-7-amino-3-(1'-pyridiniummethyl-3-cephem-4-carboxylate monohydrate compound is an intermediate in the synthesis of the cephalosporin antibiotic ceftazidime.
Patent HU-204114-B (HU)
Title: Free-running gear for the starter engine of internal combustion engine
Inventor: WERNER ANDRE G
IPC: F16D41/067
Filed: 1986-10-15
Abstract: PCT No. PCT/CH86/00144 Sec. 371 Date Jun. 14, 1988 Sec. 102(e) Date Jun. 14, 1988 PCT Filed Oct. 15, 1986 PCT Pub. No. WO88/02816 PCT Pub. Date Apr. 21, 1988.The freewheel drive has an outer ring member which is integrally united with a sleeve for reception of the starter shaft, by way of a flange. This one-piece part forms a housing for the reception of the inner ring member, which is integrally connected with the driving pinion by way of a radially projecting flange. This integrally fabricated part has cam tracks extending eccentrically of the axis, on the outer peripheral surface of the inner ring member. Roller bodies under the bias of strap springs bear against the cam tracks and against the circular inner peripheral surface of the outer ring member. Each strap spring is held in a respective spring receptor of a ring-shaped spring guide. The latter is non-rotatably held against the inner ring member and bears against the flange. The advantage consists in the more economic manufacture of the inner ring member which has the cam tracks, and in the reliable functioning of the freewheel drive even under the most extreme loads.
Patent IT-1234021-B (IT)
Title: Fixed system for disconnecting and filtration of port beds.
Inventor: TABACCHI GIUSEPPE
IPC: E02F/
Filed: 1989-03-06
Granted: 1992-04-24
Abstract: The fixed system in this invention includes multiple primary pipes (1) arranged on the bed of the area to be disconnected and equipped with suction openings (5) set in respect to the filters (9) and interceptors (6), suction resources (7) that top the primary pipes (1), an exhaust pipe (8) at the exit from the suction resources (7), and automatic and / or manual control and command means for the interceptors (6) and suction resources. The interceptors (6) are connected to the control and command means (12) singularly and in groups both of which are independent, these then open or close at least two or two groups of the interceptors, either distinctly or in combinations of phases.<IMAGE>
Patent IT-1238557-B (IT)
Title: Vertically mount for shelf-unit built with modular components, produced using metal strips through the process of continuous profiling.
Inventor: POZZER GABRIELE
IPC: A47F/
Filed: 1990-01-10
Granted: 1993-08-18
Abstract: This invention is a mounting for configuring metal shelving units with modular components. This is done using metal strips according to the profiling procedure as well as characterized by a "C" shape that has the opening towards the opposite to the front wall and where this opening has a notable size and is equipped with a robust fining. This mounting, made of heavy or thin metal and with different size and proportioned sides which is appropriate for shelf-units able to support substantial loads and light-weight shelf-unit that are still tough and resistant.
Patent LT-3991-B (LT)
Title: Apparatus for determining physical properties of fluids
Inventor: BELONENKO VLADIMIR N
IPC: G01N29/00
Filed: 1994-08-12
Abstract: The device for determining the physical attributes of liquids is used in the production of devices, determining the physical attributes of liquids, such as isothermal and adiabatic compressibility, density, the coefficient of thermal expansion, speed and the adsorption of ultrasound, precise measurements, according to the coefficient of thermal receptivity, other thermo physical and thermo dynamical quantities, potentials, functions are determined. The device consists of high pressure housing (1) with a measurement chamber, piston (8), a block (14) for initiation, the receiving of signals, the registering and processing of data, a changer of oscillations (5), mounted inside the chamber and composed of two measurement sections attached to each other, they have a stable (6) and changing (7) acoustical bases. Between the piston and the changer of oscillations, a sliding piston liner (17) can be mounted. This device improves the preciseness of the measurement of physical attributes of liquids in different pressures, volumes and temperatures.
Patent LV-11998-B (LV)
Inventor: ANITA LIELPETERE
IPC: A01N25/00
Filed: 1997-10-02
Abstract: This invention pertains to the biological agents for vegetable protection. The new Verticillium lecanii 17 basis (deposited at the Latvian Microorganism Culture Collection under number P 310) was obtained. It is applied to obtain the entomopathogenic preparation verticillin. The verticillin obtaining method was developed by cultivation of the abovementioned fungi basis in a liquid nutrient medium containing pea decoction, sugar or saccharose and malt extract, at first by submerged and then surface cultivation method. The grown fungi biomass is dried and ground or also additionally mixed with a carrier. The protection method for vegetable protection against greenhouse whitefly was developed by means of spraying the infected parts of vegetables with a preparation containing Verticillium lecanii 17.
Patent MX-168832-B (MX)
Title: Composicion de revestimiento fotosencible y metodo para para la preparacion de un polimero sensible a la radiacion ultravioleta
Inventor: SETTHACHAYANON SONGVIT
IPC: C08G18/67
Filed: 1987-12-08
Abstract: La presente invención se refiere a una composición de revestimiento fotoreproducible o fotosencible caracterizada porque comprende un polímero seleccionado a partir del grupo que consiste de un dimetacrilato de uretano carboxilado, un diacrilato de uretano carboxilado, un triacrilado triaquilato de uretano carboxilado, y un trimetacrilato de uretano carboxilado; el polímero sencible a la radiación ultravioleta se prepara condensando una mezcla de reaccion que comprende (a) un diisiocianato que tiene desde 6 hasta 18 átomos de carbono, el componente (b), un poliol de ácido carboxílico que tiene la formula [OH] x-R6-COOH; en la que x puede ser un entero de 2 a 5, y en la que R6 es una fracción de hidrocarburo lineal o ramificado, saturada, insaturada o aromática que tiene desde 2 hasta 29 átomos de carbono y el componente (c), un miembro seleccionad a partir del grupo que consiste de un diacrilato de hidroxialquilo, un diametacrilato de hidroxialquilo, un triacrilato de hidroxialquilo, y un hidroxialquiltrimetacrilato. en el que cada alquilo tiene desde 2 hasta 28 átomos de carbono; siempre y cuando el com`ponente (a) esté presente en una cantidad de desde aproximadamente 30 hasta aproximadamente 80 por ciento por peso de la cantidad total de la mezcla de reacción; el componente (b) esté presente con una cantidad de desde aproximadamente 5 hasta aproximadamente 45 por ciento por peso de la cantidad total de la mezcla de reacción con un mínimo de 0.5 miliequivalentes de acrilato por gramo de la cantidad total de la mezcla de reacción.
Patent NO-144587-B (NO)
Title: Elektronisk spilleautomat.
Inventor: OLLIGES WILLIAM EMMET
IPC: G07F17/34
Filed: 1975-06-23
Abstract: Elektronisk spilleautomat.
Patent NO-150514-B (NO)
Inventor: OKAMI YOSHIRO
IPC: C12P19/44
Filed: 1981-03-06
Abstract: The invention relates to a homocitric acid oligoriboside derivative of the formula: 
<CHEM>
 Each glycosidic linkage between ribose moieties is ribosyl(1->2)-ribosyl or ribosyl-(1->3) - ribosyl bond. 
<??>It may be obtained by cultivating a streptomyces, such as streptomyces SP MF 980-CF1 (FERM - P5430), and isolating it from the culture broth. 
<??>It is useful as a preventative for dental caries.
Patent NO-155224-B (NO)
Title: Sugesmokk.
Inventor: CAREBORG BENGT RUNE
IPC: A61J17/00
Filed: 1985-03-01
Abstract: Sugesmokk med en elastisk, hul sugedel (1) hvis åpne ende har en kantvulst (2) som holdes fast i en sirkulær beskyttelsesbrikke som har tilnærmet ellipseformet tverrsnitt oq en diameter av minst 45 mm og en tykkelse av minst 20 mm.eskyttelsesbrikken ut-gjøres av to skålformede, hovedsakelig like store halvdeler (3,4) med et smekklåsorgan (6,5) som løper langs halvdelenes sirkulære, indre henholdsvis ytre omkretskanter og som er beregnet å skulle samarbeide for å tilveiebringe sammenlåsing av de to halvdeler (3,4) på. tett og ikke-separerbar måte. Den øvre halvdel (3) er forsynt med et sentralt hull (7) for sugedelen (1) og en ringflens (8) som er anordnet konsentrisk rundt hullet og passer til sugedelens kantvulst (2) . Den undre halvdel (4) er forsynt med en innadrettet tapp (9) som passer i sugedelens åpne ende, samt med støtteknaster (10) som rager ut fra tappen, slik at når brikkehalvdelene (3,4) bringes i låsestilling ved hjelp av smekk-låseorganene (5,6), vil den undre halvdels tapp (9) bli presset inn i sugedelens (1) åpne ende for å låse dennes kantvulst (2) i sin stilling som er dannet av den øvre halvdels (3) ringflens (8).
Patent NO-167840-B (NO)
Inventor: SCHUBERT MANFRED
IPC: H05B7/06
Filed: 1986-04-28
Abstract: In a direct-current arc furnace, the service life of the bottom electrode can be extended substantially, if the cooling unit cooling the bottom electrode during the melting operations is not switched off during longer stoppages, as has been customary thus far, but continues to be operated at a reduced cooling output during at least a part of the stoppage. The cooling unit is preferably controlled during the stoppage according to such a program and in dependence of the respective measured temperature of the bottom electrode, so that the temperature of the bottom electrode is maintained within a preset range.
Patent NO-168804-B (NO)
Title: Vaskemaskin
Inventor: GJERDE TERJE
IPC: A47L11/292
Filed: 1989-05-29
Abstract: Vaskemaskin (1) med en ellet flere vesentlig sylindriske, roterende børstevalser (8,9), hvilke børstevalser (8,9) er opplagret for å kunne føres med sin rotasjonsakse vesentlig parallelt med ei overflate (2) som skal vaskes. Maskinen (1) er videre utstyrt med et håndtak (3) for a bevege maskinen og en motor (11) for å rotere børstene (8,9) i kontakt med overflata (2). Videre er det anbrakt ei eller flere dyser (17) for å sprøyte rensevæske, fortrinnsvis rent vann mot overflata (2). Rensevæsken. fjernes sammen med smuss og partikler fra overflata (2) vha.børstevalsen (8,9) via en mellomtank 10. Mellomtanken 10 er en beholder med vegger i alle retninger, og med åpning bare i et område av veggen mot børstevalsen 8. Dermed kan væsken holdes i mellomtanken 10 i alle stillinger for å muliggjøre vask både av gulv, vegger og tak.
Patent NO-177539-B (NO)
Inventor: TERASHIMA KANETSUGU
IPC: C09K19/34
Filed: 1989-02-08
Abstract: A ferroelectric liquid crystal composition which may be used in a light switching element comprises from 20 to 70% by weight of one or more of the formula: <CHEM> (in which R<1> and R<2> are the same or are different and each is linear or branched chain alkyl group of 1 to 18 carbon atoms); also, a cholesteric phase, which may comprise one or more specified pyrimidine compounds.
Patent NO-176261-B (NO)
Inventor: WAGENKNECHT MARCEL
IPC: A61B17/56
Filed: 1990-02-26
Abstract: This external fixator for the correction and reduction of fragments of bone comprises a bar (1) solidly fixed to a biocompression system (5) on which are placed the supports (2, 3) for fixing pins inserted in the bones, the elements of which can be moved in the direction of the arrows A, B, C and D. The member (6) permits the longitudinal displacement of the flange (2) in the direction of the arrow E, while the biocompression system (5) provides a reciprocal movement in the direction of the arrow F. A damping element (90, 290) interacts with means for adjusting the force applied, these means being external to the bar. Graduated reference marks (99, 283) indicate the value of the force applied. <IMAGE>
Patent NO-178440-B (NO)
Inventor: AKERBLOM INGA S
IPC: D06Q1/00
Filed: 1990-03-23
Abstract: PCT No. PCT/DK88/00162 Sec. 371 Date Apr. 30, 1990 Sec. 102(e) Date Apr. 30, 1990 PCT Filed Oct. 4, 1988 PCT Pub. No. WO89/02950 PCT Pub. Date Apr. 6, 1989.In a process for transfer pattern printing of a moist textile web consisting wholly or predominantly of natural fibers, in particular cotton, and/or artificial fibers on the basis of cellulose, the pattern carrier web is a web of paper or a paper-like material which carries a pre-printed pattern of a water soluble or dispersable dye. After wetting of the textile web to a carefully controlled moisture, the textile web is joined with the pattern carrier web and the joined webs are compressed at a suitable pressure so that the pattern can be transferred without using heat. The advantage is that it will be possible to avoid both heating and use of organic solvents. It is also possible to transfer a pattern to a colored textile web since the textile web may be wetted before hand with an aqueous dye solution or dispersion instead of undyed liquid.
Patent NO-174697-B (NO)
Inventor: KALLESOEE HERLUF
IPC: B27M3/00
Filed: 1990-08-23
Abstract: PCT No. PCT/DK89/00042 Sec. 371 Date Oct. 25, 1990 Sec. 102(e) Date Oct. 25, 1990 PCT Filed Feb. 23, 1989 PCT Pub. No. WO89/08016 PCT Pub. Date Sep. 8, 1989.A method and apparatus for automatically feeding stave members wherein each newly introduced stave is laterally automatically displaced inwardly against a free edge of a previously laid out layer of stave members such that a close connection is achieved by successive displacements of only a single stave member at a time. A feeder feeds the stave members from a stationary feeding area and a feeding carriage picks up the stave members and delivers the stave members to a carrier surface.
Patent SE-319020-B (SE)
Inventor: BRIGGS T
IPC: G06G7/78
Filed: 1964-04-17
Abstract: 1,077,003. Aircraft instruments. FERRANTI Ltd. March 31, 1964 [April 18, 1963], No. 15225/63. Heading B7W. [Also in Divisions G1, G2 and G4] A navigational device for use in aircraft comprises a sequence of maps 1 in transparency form on a film 2 which is so movable in directions parallel to and perpendicular to its length by motors ME and MN which are actuated in accordance with the velocity, angle of track and angle of convergence of the meridian at the position of the aircraft with which the device is used that the position of the aircraft is indicated by a fixed mark on a screen on which an image of the appropriate one of the map transparencies is projected. The film which is provided with maps based on conical projections (Fig. 3, not shown) and which is supported on rollers 3 and 4 so that one map is projected through a window 17 in a support 5 to the screen, is longitudinally positioned between the rollers 3 and 4 by the motor ME which acts through a differential gear 15 to drive a sprocket roller 14 and is vertically positioned by the motor MN which actuates a screw-threaded rod 10 connected to lugs 8 and 9 of the support 5. Signals which drive the motors MN and ME to move the film so that the fixed mark indicates on the image of the projected map the position of the aircraft are derived from a navigational computer which provides an output in accordance with the actual velocity and track of the aircraft. Corrections are made to allow for the angle of convergence of the meridians of the projected map and hence for changes in track angle relative to the sides of the map by providing a convergency unit (33) (Figs. 4 and 5, not shown). The signals representing the corrected angle of track and the movement of the aircraft relative to the map are fed to a resolver 35 and thence to integrators and followup units to provide signals which suitably drive the motors MN and ME. Further motors may be provided respectively to move the film so as to change from one projected map to another and to rotate the image of the projected map on the screen.
Patent YU-48695-B (YU)
Title: Substituted in ring 2-amyno-1,2,3,4 -tetrahydronaphtalenes 3-amynochromanes and process of preparation
Inventor: STEVEN HOECHSTETTER CRAIG
IPC: A61K31/38
Filed: 1991-08-14
Abstract: The present invention provides novel ring-substituted 2-amino-1,2,3,4-tetrahydronaphthalenes, 3-aminochromanes, and 3-aminothiochromanes, including their corresponding sulfoxides and sulfones, which ring-substituted compounds exhibit agonist activity at the serotonin 1A receptor, of the formula <CHEM>  in which R is C1-C4 alkyl, C3-C4 alkenyl, or cyclopropylmethyl;     R3 is hydrogen; or R and R3 taken together are a divalent group of the formula -CH2CH2CH2-; R1 is hydrogen, C1-C4 alkyl, C3-C4 alkenyl, cyclopropylmethyl, aryl(C1-C4-alkyl), -COR4, -(CH2)nS(C1-C4 alkyl) or -(CH2)nCONR5R6;     n is an integer from 1 to 4;     R4 is hydrogen, C1-C4 alkyl, C1-C4 alkoxy, or phenyl; R5 and R6 are independently hydrogen, C1-C4 alkyl, or C3-C7 cycloalkyl with the proviso that when one of R5 or R6 is cycloalkyl the other is hydrogen;     X is -CH2-, -O-, -S-, <CHEM>     A is <CHEM> R2 is C1-C8 alkyl, substituted C1-C8 alkyl, C2-C4 alkenyl, aryl, substituted aryl, aryl(C1-C4-alkyl), substituted aryl(C1-C4 alkyl), C3-C7 cycloalkyl-substituted methyl, or C3-C7 cycloalkyl; and pharmaceutically acceptable acid addition salts thereof.
Patent YU-46472-B (YU)
Title: Postopek za toplotno obdelavo temprane litine
Inventor: LOECKER G
IPC: C21D5/10
Filed: 1988-07-21
Abstract: POSTOPEK ZA TOPLOTNO OBDELAVO TEMPRANE LITINE, v pretočni plinski peči za tempranje, označen s tem, da razogljičimo z žarjenjem ulitke v pretočni plinski peči za tempranje pri temperaturi od 1000 stepeni C do 1100 stepeni C i jih držimo pri tej temperaturi do popolnega razpad cementita, zatem pospešeno ohladimo na 730 stepeni C in od te temperature ohlajamo z ohlajevalno hitrostjo 2 stepena C/h do 5 stepeni C/h do temperature od 680 stepeni C do 710 stepeni C in končno ohladimo na zraku do sobne temperature. Prijava sadrži još 6 zavisnih zahteva.
Patent YU-46734-B (YU)
Title: Postupak za konverziju otpadnog materijala u korisne proizvode
Inventor: HANS WEBER-ANNELER
IPC: C10J3/00
Filed: 1989-07-28
Abstract: POSTUPAK ZA KONVERZIJU OTPADNOG MATERIJALA U KORISNE PROIZVODE, naznačen time, što se smeša otpadnog materijala zagreva i razgradjuje, pri temperaturi izmedju 350 C i 1050 C, u smeši vodene pare, gorivog gasa, kiseonika i ugljendioksida do sadržaja organskih sastojaka ispod 100 delova na milion, koji odgovara količini od 100 g organskih sastojaka po toni smeše otpadnog materijala, pri čemu nastaje čvrsta smeša neorganskih proizvoda i gasna smeša; što se dobijena gasna smeša cepa, pri temperaturi izmedju 950 C i 1050 C, tokom najmanje jedne sekunde, u niskomolekulske proizvode i/ili elemente; što se dobijena niskomolekulska jedinjenja i/ili elementi uvode u vodu pri temperaturi od 200 C do 800 C, pri čemu nastaje sintezni gas, a u vodi za pranje zaostaju niskomolekuska jedinjenja i/ili elementi; što se sintezni gas, pomešan sa vodenom parom, katalitički prevodi u tečne ugljovodonike i/ili alkohole, a sporedni proizvodi koji sadrže gasovite ugljovodonike i ugljendioksid se uvode u struju gorivog gasa i vraćaju u postupak. Prijava sadrži još 11 zahteva.
Patent YU-46740-B (YU)
Title: Adaptivni transverzalni korektor
Inventor: SEBALD G
IPC: H04L25/03
Filed: 1986-09-10
Abstract: ADAPTIVNI TRANSVERZALNI KOREKTOR, koji se sastoji od većeg broja interaktivno povezanih elemenata za kašnjenje a svaki elemenat ima vreme kašnjenja T koje odgovara razmaku dvaju sukcesivno otpremljenih znakova, i sa (m+n+1) elemenata za podešavanje, priključenih izmedju elemenata za kašnjenje i ulaza u kolo za sabiranje, koeficijenti elemenata za kašnjenje se izvode iz izlaznog signala kola odlučivanja, pri čemu m označava broj negativno-indeksovanih elemenata za podešavanje (prekursora) a n označava broj pozitivno-indeksovanih koeficijenata (prekursora), i sa linearnim glavnim odvodom, koji su podešeni prema algoritmu prolaza kroz nulu, ili se sastoji od ekvivalentnog sklopa kod kojeg se ulazni signal paralelno privodi na elemente podešavanja a izlazni signali elemenata za podešavanje se sa intervalom T uvode u vod za kašnjenje, naznačen time, da su predvidjeni najmanje jedan odnosno i dodatnih, pozitivno indeksovanih, koeficijenata koji su povratno spregnuti u odlučivanju, u nastavku na oblast pristupa linearnog transverzalnog filtera, čija vremena tranzita petlje odgovaraju (n+j) T sa j=1,... i, gde m jeste ceo broj 0, i jeste ceo broj 1, a n jeste ceo broj 1. Prijava sadrži još 1 nezavisan zahtev.
Patent YU-45670-B (YU)
Title: Montažna konstrukcija stalka za skladištenje gorivnih elemenata nuklearnih reaktora i postupak za njeno postavljanje
Inventor: HELARY J L
IPC: G21C19/06
Filed: 1984-10-18
Abstract: MONTAŽNA KONSTRUKCIJA STALKA ZA SKLADIŠTENJE GORIVNIH ELEMENATA NUKLEARNIH REAKTORA I POSTUPAK ZA NJENO POSTAVLJANJE, sa vertikalnim ćelijama 1 oblika paralelopipeda, otvorenim na svojim gornjim krajevima a koje su postavljene jedna pored druge, nazna čentime, što obuhvata horizontalnu temeljnu ploču (2) na kojoj je postavljena fiksirana donja rešetka (4) sastavljena od paralelnih horizontalnih poluga (12, 14) dok je najmanje još jedna druga rešetka (6) od horizontalnih paralelnih poluga (12,14) postavljena na gornjem delu ćelija (1), za njihovo osigurano uspravno držanje uz traženu krutost njihovim uklještenjem u okvirima (8) svake rešetke (4,6), i što su respektivno iznad i ispod poluga (12, 14) rešetki (4,6) postavljene horizontalne šipke (18, 16), za sprečavanje vertikalnog pomeranja svake ćelije (1), i što su na krajevima svake paralelne poluge (12, 14) svake rešetke (4, 6) učvršćeni držači (10a, 10b) za držanje ćelija (1) postavljenih na periferiji konstrukcije (S1) stalka nalegnutih na pripadajuće poluge (12, 14), i pri čemu je medjusobno spajanje poluga (12, 14) rešetki (4, 6) kao i poluga (12) donje rešetke (4) sa temeljnom pločom (2) izvedeno rastavljivim spojnim zavrtnjima (20). Prijava sadrži još 2 patentna zahteva.
Patent RS-50285-B (RS)
Title: Tool for producing decorative patterns on a coating material
Inventor: SOURON CLAUDE
IPC: B44B5/02
Filed: 2002-07-12
Abstract: The invention concerns a tool (1) for producing decorative patterns (5) on a coating material (3). Said tool is characterised in that it comprises a matrix formed or fixed on a stretched endless strip (2) freely rotating and comprising at least a planar part forming a support surface. According to the invention, the endless strip (2) is stretched between at least two freely rotating rollers (6, 7).
Patent ZA-812234-B (ZA)
Title: Oxygen aspirator burner and process for firing a furnace
Inventor: ANDERSON J
IPC: F23C7/00
Filed: 1981-04-02
Abstract: The present invention deals with an oxygen aspirator burner (1) and a process for firing a furnace with an oxygen-enriched oxidant gas. The process and apparatus for firing a furnace using oxygen or oxygen-enriched air as the oxidant gas, comprises injection into the furnace of a plurality of oxidant jets (8), through nozzles (4), in a spaced relationship to a fuel jet (9), at a velocity sufficient to cause aspiration of furnace gases into the oxidant jets before the latter mix with the fuel jet, in amounts sufficient to lower flame temperature.