baber/WOPTO huggingface dataset:
Patent KR-200494438-Y1 (KR)
IPC: F41A17/44
Filed: 2020-05-19
Granted: 2021-10-14
Abstract: 본 고안은 격침과 접촉하여 함포 폐쇄기로부터 격침을 분해하는 고정부재 및 상기 고정부재에 격침 분해를 위한 동력을 제공하는 격침 분해지그를 포함하여 구성되고, 상기 격침 분해지그는, 중심에 나사홀을 포함하는 판형상의 바디 및 상기 나사홀 기준으로 좌우 대칭하여 상기 바디의 종방향으로 길게 형성된 제1슬라이드홀 및 제2슬라이드홀을 포함하는 바디부; 상기 나사홀에 축(x)방향 삽입 및  회전 가능하게 구비되는 샤프트; 및, 상기 바디부 일측면 또는 타측면에 결합되는 다단절곡된 형상의 홀더부; 를 포함하고, 상기 홀더부는 상기 바디부의 제1 및 제2슬라이드홀에 각각 위치조절 가능하게 결합되는 제1홀더부 및 제2홀더부를 포함하는 것을 특징으로 하는 함포 격침 분해장치에 관한 것으로, 다양한 규격의 함포에 적용 가능하고, 작업공간이 협소하고 장애물이 많은 곳에서도 안정적인 격침의 분해작업이 가능한 효과가 있다.
Patent KR-200493803-Y1 (KR)
IPC: A62B23/02
Filed: 2020-09-03
Granted: 2021-06-07
Abstract: 본 고안은 개방부를 갖는 프레임(100)에 마스크필터(300)가 부착되게 구성됨으로써, 마스크필터(300)만 교체하여 재사용이 가능하므로 비용을 절감하는 경제적인 효과를 제공하고, 쓰레기 배출량이 감소하여 환경오염을 줄이며, 피부에 부드럽게 밀착되어 착용감을 향상시키고, 피부트러블을 방지하는 효과를 제공하며, 마스크의 생산성을 높이고, 귀걸이끈과 목걸이를 같이 사용하여 마스크 걸이나 안경 걸이로도 사용할 수 있는 편의성을 기대한다. 
본 고안의 탈부착 가능한 프레임 마스크는, 개방부가 관통 형성된 프레임(100); 상기 프레임(100)의 양측에 각각 장착되는 귀걸이끈(200); 상기 프레임(100)에 장착되어 상기 개방부를 덮는 마스크필터(300); 를 포함한다.
Patent KR-200496745-Y1 (KR)
IPC: B23Q3/155
Filed: 2021-01-19
Granted: 2023-04-13
Abstract: 공구 체인, 제1 가이드 레일, 및 제2 가이드 레일을 포함하는 공작 기계의 공구 매거진의 가이드 링크 구조체로서, 공구 체인은 여러 개의 고정 장치를 설치하는 데 사용되며, 상기 고정 장치에 설치된 절단 공구는 공구 체인에 의해 준비되고, 공구 체인의 양측은 각각 제1 가이드 레일 및 제2 가이드 레일에 인접하고; 
공구 체인은 여러 개의 조인트 홀더, 여러 개의 제1 체인 축, 여러 개의 제2 체인 축, 여러 개의 롤러, 및 여러 개의 링크 조인트를 포함하며, 여기서 제1 체인 축과 제2 체인 축은 엇갈리게 배치되고, 제1 체인 축과 제2 체인 축은 조인트 홀더 및 링크 조인트 각각에 대해 피벗식으로 연결되며, 제1 체인 축 및 제2 체인 축은 각각 롤러상에서 선회되고, 롤러는 중간 허리부를 형성하고, 제1 가이드 레일 및 제2 가이드 레일은 각각 롤러를 지지하여; 
본 고안의 전체 구조는 단순화 되고, 공구 체인은 높은 작동 안정성을 갖는다.
Patent PH-22013000316-Y1 (PH)
Title: Embedded multifunctional air purifier used in kitchen
Inventor: KAO CHING-CHENG
IPC: A61L9/00
Filed: 2013-07-12
Abstract: An embedded multifunctional air purifier used in a kitchen is installed in a predetermined space of a cupboard and includes a casing, a front filter, an electrostatic dust collector, an air extraction module, a photocatalyst module and a vitamin C filter. An air inlet and an air outlet are formed on a front side of the casing; an air channel is formed in the casing; the front filter is installed at the air inlet; the electrostatic dust collector is installed at a front section of the air channel; the air extraction module and the photocatalyst module are installed at a rear section of the air channel; and the vitamin C filter is installed at the air outlet, so as to eliminate fume odor and germs in the kitchen and provides the function of producing vitamin C.
Patent PH-22014000211-Y1 (PH)
Title: Cleaning brush for feeding bottles and nipples
Inventor: KAPAHI ANIL
IPC: A46B15/00
Filed: 2014-05-02
Abstract: A cleaning brush for feeding bottle and nipples comprising a hollow rectangular handle, and flexible stem extending outwardly from one end of said rectangular handle, a bottle brush secured at the opposing end of said flexible stem, and a nipple brush removably secured with said hollow rectangular handle.
Patent PH-22015000225-Y1 (PH)
Title: Safety motorcycle stand
Inventor: CHENG WAN-JYE
IPC: B62H1/02
Filed: 2015-05-12
Abstract: A safety motorcycle stand is installed on the bottom of a motorcycle body and comprises an elastic support stand and an electromagnetic switch device. An anti-return protrusion of the electromagnetic switch device protrudes from the switch body and presses against the elastic support stand contacting the ground, whereby the elastic support stand coupled to the motorcycle body stands up the motorcycle body on the ground. The electromagnetic switch device has a signal cable connected with the start switch of the motorcycle body. While the motorcycle body is started, a current flows to the electromagnetic switch device to make the anti-return protrusion withdraw into the switch body, whereby the elastic support stand is no more blocked by the anti-return protrusion but sprung up to the motorcycle body. The present utility model can avoid the traffic accident caused by that the rider forgets to kick up the motorcycle stand.
Patent PH-22016000887-Y1 (PH)
Title: Illumination lamp tube
Inventor: CHEN YEN-HSIANG
IPC: H02J9/02
Filed: 2016-11-23
Abstract: An illumination lamp tube includes two sealing end caps respectively having two outward projected contact pins for receiving external power supply; a circuit board electrically connected to the contact pins; a rechargeable battery; and a light strip electrically connected to the circuit board and the rechargeable battery. A signal determination unit of the circuit board detects a power supply state of the external power supply and generates a first signal when a normal power supply state is detected or generates a second signal when an abnormal power supply state is detected. A control unit of the circuit board is electrically connected to the signal determination unit. When receiving the first signal, the control unit controls the external power supply to be supplied to the light strip and the rechargeable battery; and when receiving the second signal, the control unit controls the rechargeable battery to supply power to the light strip.
Patent PH-22016000934-Y1 (PH)
Title: Formulation of stuffed chicken (gallus gallus domesticus)
Inventor: GIANGO WILMA C
IPC: A22C21/00
Filed: 2016-11-29
Abstract: The present utility model discloses the formulation of producing stuffed chicken (Gallus gallus domesticus) comprising 0.15 pcnt salt, 0.07 pcnt pepper, 0.77 pcnt soy sauce; 1.5 pcnt pineapple juice, 2.31 pcnt brown sugar, 3 pcnt butter and stuffing 77 pcnt chicken drumstick with 3.8 pcnt turnip, 3.8 pcnt parsley, 3.8 pcnt garlic and 3.8 pcnt cheese.
Patent PH-22019001084-Y1 (PH)
Title: COMPOSITION OF SQUASH (Cucurbita maxima) BARS
Inventor: TAMAYO DAISY G
IPC: A23G3/00
Filed: 2019-08-05
Abstract: The utility model provides a consumer acceptable composition of squash (Cucurbita maxima) bars. The formulation of producing squash (Cucurbita maxima) bars comprising of boiled and mashed squash puree, grated coconut, centrifugal sugar, vanilla and glucose.
Patent PH-22019050043-Y1 (PH)
Title: Wearable personal locator
Inventor: ABANIA GABRIELLE V
IPC: G01S19/00
Filed: 2019-01-24
Abstract: The present utility model relates to a process for a search and rescue device for locating and communicating vitality of a person in an emergency situation and an android application that maps the estimated location of the users. It has the advantage of showing the rescuer the user's location and current level of vitality thus enabling rescuers to do a triage for their rescue.
Patent PH-22020050658-Y1 (PH)
Title: A process of making cacao coated puffed cereal truffle
Inventor: FLORES LOVELLA C
IPC: A23L7/122
Filed: 2020-11-04
Abstract: Disclosed is the process of making cacao coated puffed cereal comprising with the following steps; Prepare the ingredients such as 50 grams grated cacao, 30 grams cocoa butter, 30 grams glucose, 60 grams muscovado sugar, 10 grams water, 125 grams mixed puffed cereal, 10 grams whole peanuts. Next, boil the grated cacao, cocoa butter and glucose into a double boiler until a chocolate mixture is obtained, set aside. Then, boil the muscovado sugar and water until big bubbles are noticeable forming a caramelized sugar. Next, mix the caramelized sugar and the chocolate mixture form the coating mixture, set aside. Then, dip the whole peanuts with the coat mixture, set aside. Next, mix the puffed cereal with the coating mixture producing a coated puffed cereal. And lastly, coat the whole dipped peanuts with the coated puffed cereal to form into cereal truffle.
Patent BR-202015016276-Y1 (BR)
Title: Dispositivo de troca rápida de pinos de posicionamento das facas em disco de corte de base de tipo com facas fixadas por cunha
Inventor: Cláudio Leandro Bussola
IPC: A01D75/00
Filed: 2015-07-07
Abstract: resumo “dispositivo de troca rápida de pinos de posicionamento das facas em disco de corte de base de tipo com facas fixadas por cunha” o presente relatório descritivo refere-se a uma patente de modelo de utilidade, para disco de corte de base (1) de tipo com facas fixadas por cunha, pertencente ao campo dos equipamentos agrícolas, particularmente de colheitadeira de cana-de-açúcar, no qual foi introduzido um dispositivo de troca rápida, compreendido: em cada suporte (4): por pinos (7) de posicionamento das facas formado por dois trechos, um de diâmetro maior (7)’ e outro de diâmetro menor (7)”, que ficam encaixados nos furos (6) e (21) do corpo de disco (2) e da faca (20), respectivamente; por tampa (11) sobreposta às extremidades de maior diâmetro (7)’ dos pinos (7) localizadas nos furos (6) do corpo de disco (2); por conjuntos de parafuso e porca (12) de fixação da tampa (11) no corpo de disco (2); e por furos passantes (13) previstos no “teto” do alojamento (5), alinhados aos furos (6) e (21) do corpo de disco (2) e faca (20) respectivamente que contêm os pinos (7) de posicionamento da faca e aptos a receber ferramenta sacadora (100).
Patent BR-202016025822-Y1 (BR)
Title: Disposição introduzida em porteira
Inventor: PAULO MÁRCIO SOARES OLIVEIRA
IPC: E06B11/02
Filed: 2016-11-04
Abstract: disposição introduzida em porteira. refere-se a patente de modelo de utilidade uma disposição construtiva aplicada a porteira, com uso em diversas aplicações e locais, a qual por suas características, é de simples e fácil montagem e instalação, que é executada diretamente no local em que será utilizada. a disposição ora apresentada é constituída pelo tubo articulado lateral de fixação (1), pelo tubo articulado lateral dotado de trinco para fechamento da porteira (2), pelos tubos horizontais superior e inferior (3), que se encaixam nas laterais (1) e (2), pelos tubos verticais de fechamento (4) que se encaixam e são parafusados nos tubos horizontais superior e inferior (3), por meio dos parafusos (6) e pelos tubos horizontais de fechamento (5) que se encaixam e são parafusados nas laterais (1) e (2), por meio dos parafusos (6).
Patent EG-15599-A (EG)
Title: Process for the preparation of immunoglobulin conjugates
Inventor: GEORGES FERNAND ROWLAND
IPC: A61K47/48
Filed: 1982-01-06
Granted: 1986-06-30
Abstract: There is described an immunoglobulin conjugate comprising an immunoglobulin or immunoglobulin fragment modified by one or more groups of the following formula which are covalently linked to it: <CHEM>   The conjugates are useful in the treatment of cancers and are made by reaction of the immunoglobulin or immunoglobulin fragment with desacetylvinblastine acid azide.
Patent CR-8397-A (CR)
Title: Mezclas fungicidas para combatir patogenos del arroz
Inventor: JORDI TORMO I BLASCO
IPC: A01N43/653
Filed: 2006-05-11
Abstract: Se refiere a mezclas fungicidas para combatir patogenos del arroz que contienen como componentes activos: El derivado de tiazolopirimidina de la formula I y propiconazoles de la formula II
Patent CR-9221-A (CR)
Title: Procesos para preparar eteres aromaticos
Inventor: GHARBAOUI TAWFIK
IPC: C07D401/12
Filed: 2007-07-02
Abstract: La invencion divulga: Un proceso para preparar un compuesto de formula (I); donde dicho proceso comprende hacer reaccionar un compuesto de formula (II): donde L es un grupo saliente, con un compuesto de formula (III) en presencia de una base y una sal, formando de ese modo el compuesto de formula (I). Los sustituyentes y variables se definen en las reivindicaciones.
Patent GB-174912-A (GB)
Title: Improvements in and relating to a fuel substance
IPC: C10L5/00
Filed: 1922-01-03
Abstract: 174,912. Trent Process Corporation, (Assignees of Trent, W. E.). Feb. 2, 1921, [Convention date]. Materials and compositions for making gas, coke, and other products.-A homogeneous fuel suitable for the manufacture of carburetted water gas consists of a mixture of finely divided carbonaceous material, water and oil, in selected proportions. The maximum amount of water is about 56 per cent of the total mixture, coal representing 40 and oil 4. Up to 30 per cent of oil may be used when the water content is reduced to about 10 per cent, it being possible by varying the quantity of oil employed to govern the percentage of water in the resulting mass. Mixtures of low water content may be used for recovery of by-product oils of the coal, for cokemaking and in coal gas retorts.
Patent IS-4784-A (IS)
Inventor: HAYASHI YOSHIHARU
IPC: A61K31/415
Filed: 1998-06-26
Abstract: The present invention relates to an agent for the prophylaxis and treatment of diabetic complications comprising, as an active ingredient, 4-Ä alpha -hydroxy-2-methyl-5-(1-imidazolyl)benzylÜ-3,5-dimethylbenzoic acid, an optically active compound thereof or a pharmaceutically acceptable salt thereof. The present invention further relates to a method for the prophylaxis and treatment of diabetic complications comprising administering an effective amount of this compound. The medicament of the present invention is useful for the prophylaxis and treatment of diabetic complications, namely, diabetic neuropathy, nephropathy, ophthalmopathy, arteriosclerosis and the like. The action of the drug is long-lasting for very small doses and a single administration a day is sufficient.
Patent JP-H05211286-A (JP)
Title: Method for manufacturing capacitor element
Inventor: MIYAZAKI SHINICHI
IPC: H01L27/04
Filed: 1992-01-06
Abstract: PURPOSE:To provide a method for manufacturing a capacitor element having a small occupied area, applicable to a high integration. CONSTITUTION:On a semiconductor substrate 1, there is formed a first electrode 5 having a barrier metal on its top layer. Then, a/perovskite oxide film dielectric or a Ta2O3 dielectric film 7 is formed. On this dielectric film, an interlayer film 8 is developed to open the upper part of the dielectric film 7. Then, a second electrode 9 having a barrier metal on the bottom layer is formed.
Patent TR-29001-A (TR)
IPC: F24F7/00
Filed: 1994-02-01
Abstract: PCT No. PCT/EP94/00256 Sec. 371 Date Jul. 27, 1995 Sec. 102(e) Date Jul. 27, 1995 PCT Filed Jan. 29, 1994 PCT Pub. No. WO94/18506 PCT Pub. Date Aug. 18, 1994The invention relates to a ventilation device. Provision is made that the air propulsion plant (20) conveys at least a portion of the air in an air circulating mode by means of at least one variable volume chamber (6) in a pulsating manner at a very low frequency, with the chamber being connected to the room (2) by at least one air passage (21).
Patent AT-A99984-A (AT)
Inventor: GIRLINGER HANS
IPC: F16K3/26
Filed: 1984-03-26
Abstract: 1. A dispensing valve, particularly for large containers, comprising a tubular valve member (14, 44, 76), one tubular end of which constitutes an outlet opening (19, 47, 87) and which adjacent to its other end has at least one lateral inlet opening (16, 79) and which is mounted in a guide bore (13, 43, 75) of a housing (1, 1a, 1b ; 2, 2a, 2b ; 3a,3b, 24, 25, 75) to be slidably movable against the force of a closing spring (18, 46 ; 81) like a piston by a handle from a closing position to a dispensing position, in which its inlet opening (16, 79) emerges from the guide bore and communicates with the interior of the container, wherein a valve plate (15, 77) is provided on that part of the valve member (14, 44, 76) which is inwardly directed from the inlet opening (16, 79) and in the closing position engages a valve seat, and the valve is adapted to be fixed in its open position, characterized in that the guide bore (13, 43, 75) for the tubular valve member (14, 44, 76) is provided on a screw-in nipple (10, 35, 71) which is provided with an outer head part (10, 10a, 10b, 36, 72) that constitutes a support for an assembling seal (11, 11a, 11b) the valve member (14, 44, 76) is rotatably mounted in the guide bore (13, 43, 75) and the region for engagement of locking means (21, 22, 48, 84, 85, 86) which serve to fix the valve member in at least one rotational positon when it is in its open position which is provided in a region between the outside surface of the housing, which outside surface faces the handle, and the hangle itself, the locking means consist either of magnet retainers (21, 22), including a magnet (22) and an associated armature (21), which are mounted on the housing (3, 34) and an actuating member (20) that is secured to the valve member (14) and said magnet and armature are eccentric with respect to the axis of the valve member (14) so that they can interengage only in a specific rotational positon of the valve member, or, if the handle (45,82, 83) consists of a cap which is open toward the nipple and receives the valve spring (46, 81) and is guided on the nipple (35, 45), said cap and the nipple carry indentations and detent elements (48, 84, 85, 86) which constitute the locking means.
Patent DK-55987-A (DK)
Inventor: ACKLAND MARTIN ROBERT
IPC: G01N33/483
Filed: 1987-02-03
Abstract: Apparatus for detecting micro-organisms comprises a rack (16) having an array of stations at which a plurality of microbiological sample containers (14) can be received. Each container (14) is provided with an electrode or electrodes at its base for connection with electrical contacts on the base (18) of the rack (16) and container retention means, for releasably retaining the containers in the rack (16) are provided and are adapted to be operable from above the upper support plate (20) of the rack (16).
Patent DK-94586-A (DK)
Inventor: HOEJ HEROLD HAANING
IPC: F16L1/00
Filed: 1986-02-28
Abstract: A method for manufacturing and laying a pipeline is performed in that the pipeline 4 is carried from a store 3 through a station 7 for applying an adhesive and together with satellite pipes 5 from storage rolls 6 is carried through a drawing die 8 where the assembling is performed. Subsequently, the pipeline is carried through a taping station 9 for taping with glass fibre tape, and a gluing station 10 for application of an epoxy resin adhesive. Following this, the finished pipeline is carried over guiding rollers 11 to a laying mechanism (not shown). The method enables in situ manufacture and simultaneous laying of a pipeline which is thermally insulated and/or ballasted or buoyancy regulated. <IMAGE>
Patent FR-1454981-A (FR)
IPC: C22B15/00
Filed: 1965-11-30
Granted: 1966-10-07
Abstract: 1,052,907. Ingot-casting machines and processes; ingot moulds. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Nov. 24, 1965 [Dec. 1, 1964], No. 48754/64. Heading B3F. [Also in Division C7] A refining tower for the de-oxidation of copper is constructed of graphite and has equidistant longitudinal slots whereby heating efficiency is increased, the tower being enclosed in a fused silica envelope which can be evacuated to a high vacuum, and being heatable by means of induction coils surrounding the envelope. In a particular embodiment (Fig. 1, not shown) the tower consists of an upper crucible A in which the metal (with or without alloying constituents) is placed, a tripartite refining section C, D, E providing a stepped surface over which the metal flows, and a receiver H within which the product may be maintained molten to allow degasification to proceed. By suitable adjustment of coil Y the metal is then caused to solidify from the base upwards, thereby eliminating shrinkage cavities.
Patent GB-1177012-A (GB)
Title: Tungsten-Containing Electrode
IPC: H01M10/39
Filed: 1967-01-02
Abstract: 1,177,012. Secondary cells with tungstentungsten halide electrodes. STANDARD OIL CO. 2 Jan., 1967 [3 Jan., 1966], No. 185/67. Heading H1B. A secondary cell with a molten electrolyte comprising an alkali metal halide and/or an alkaline earth metal halide has an electrode comprising tungsten and/or tungsten halide. The tungsten/tungsten halide cathodes can be used with anodes of Ni, Zn, Al, Mg and/or Li. Examples describe cells with an Al anode; LiCl-KCl eutectic electrolyte; and a tungstencarbon electrode prepared by mixing tungsten, petroleum coke and a phenol-formaldehyde resin binder, hot pressing the mixture and baking the product; the cells being operated under an argon atmosphere. Electrodes can be prepared similarly from a tungsten halide, or by vapour deposition of tungsten on a substrate; reduction of the halides WX 6  in the vapour state with deposition of a less volatile halide on porous C; or by the reaction of WS 2  with a halogen to give a tungsten halide electrode.
Patent GB-1521556-A (GB)
Title: Apparatus for indicating the characteristic data of a centrifuge
IPC: G01D7/08
Filed: 1976-01-05
Abstract: 1521556 Centrifugal separator A HETTICH 5 Jan 1976 [7 Jan 1975] 00255/76 Heading B2P In a centrifuge of the pivotable buckettype for laboratory use, means are provided for the digital indication of characteristics of the centrifuge acting on a sample being centrifuged comprising an electronic unit 3, input means 1, 2 and 4, 5 for feeding respectively the maximum or minimum radius of centrifuging to separate input terminals of the unit, and an adjustable selector switch 9 for connecting one or other of three output terminals 6, 7, 8 from the unit to a digital indicator 11, the first output terminal 6 supplying the speed of the centrifuge rotor, the second output terminal 7 supplying the minimum and maximum accelerations, and the third output terminal 8 supplying the separation effect of the centrifuge.
Patent GB-269820-A (GB)
Title: Improvements in vapour burners
IPC: F23D3/00
Filed: 1927-01-05
Abstract: 269,820. Sherman, R. M. Jan. 5, 1927. Open tray burners: burners, attaching; overflow fittings.-An oil burner comprises a plate 12 formed with an oil groove or grooves 13 and a vapour groove or grooves 18 connected by ducts 19 which open into the oil groove at a higher level than the bottom of the groove. The plate 12 supports perforated shells 24 - - 27 fitted with caps 31, 32 for closing the top of the shell 27 and the space between the shells 25, 26. Oil is supplied to the grooves 13 at such a rate as not to overflow into the grooves 18 through valve-controlled pipes 14 which may be fitted with drip cups 17. The base 12 is mounted so as to be adjustable vertically in a tubular support 9 rising from a triangular base 6 provided with a leg 7 at one corner and levelling screws 8 at the others.
Patent GB-735899-A (GB)
Title: Manufacture of hydrazine compounds
IPC: C07D237/34
Filed: 1953-01-06
Abstract: A process for the manufacture of compounds which contain a pyridazine ring and also contain a hydrazino group in at least one of the two ortho-positions relative to the ring nitrogen atoms comprises reacting hydrazine with a compound which contains a pyridazine ring and also contains an unsubstituted mercapto group in at least one of the two ortho-positions relative to the ring nitrogen atoms, or with a corresponding disulphide.  The reactant containing the pyridazine ring may be used in the form of a salt.  The reaction is advantageously carried out in the presence of an inert diluent, and in the presence of a condensing agent, and preferably at an elevated temperature.  Suitable reactants are mercapto-phthalazines especially 1-mercapto- and 1 : 4-dimercapto-phthalazine, and mercapto-pyridazines especially 3-mercapto - 6 - aryl - and 3 - mercapto - 6 - alkylpyridazine, particularly 3-mercapto-6-phenylpyridazine, and the corresponding disulphides such as 1 : 11-dithio-bis-(4-phenyl-phthalazine).  In the examples the following compounds are prepared: 1-hydrazino-, 1,4-dihydrazino- and 1-hydrazino-4-methyl-phthalazine.  1 - Hydrazino - 4 - mercapto - phthalazine is prepared by reacting 1-hydrazino-4-chlorophthalazine with alcoholic potassium hydrosulphide.  Bis - phthalazyl - (1) - disulphide is prepared by reacting 1-mercapto-phthalazine with bromine in glacial acetic acid and treating the resulting dihydrobromide salt with caustic soda. Specifications 629,177 and 654,821 are referred to.