baber/WOPTO huggingface dataset:
Patent GB-907936-A (GB)
Title: Hydraulic clutch
IPC: F16D35/00
Filed: 1960-09-12
Abstract: 907,936. Clutch-brake combinations. LUTZ, O. Sept. 12, 1960 [Sept. 10, 1959; Oct. 31, 1959], No. 31413/60. Class 80 (2). [Also in Group XXIX] A clutch-brake combination for an engine cooling fan, air circulating device or heat exchanger comprises a viscous fluid clutch having V-grooved driving and driven discs 4, 5 which may be engaged frictionally for a direct mechanical drive, the driven disc 5 of which is axially movable and carries a brake cone 18 engageable with a fixed brake cone 17 when the clutch discs 4, 5 are furthest apart. The clutch is progressively engaged by leftward movement of the driven disc 5 against a return spring 25, the fluid between the V-grooves escaping through holes 19, 20, 21. The disc 5 is connected through an oil retaining casing 5 to a rod 7 which abuts a servo 26 supplied with pressure fluid from a thermostatic control.
Patent GB-617718-A (GB)
Title: Improvements in butyrometer centrifuges
IPC: B04B5/04
Filed: 1946-10-23
Abstract: 617,718. Centrifugal machines. AKTIEBOLAGET SEPARATOR. Oct. 23, 1946, No. 31483. Convention date, March 1, 1945. [Class 23] In a centrifugal bowl having a number of butyrometer test tubes supported in a rack consisting in a number of superimposed plates 3 arranged in the bowl an arrangement is provided for ensuring that the angular speed of the water in the bowl during operation corresponds to the angular speed of the bowl. The arrangement consists in providing conveying or guiding means for the water in the form of vanes 12, 14, arranged between the upper wall 10 of the bowl and the rack 3, or vanes 18 arranged between the lower wall 19 of the bowl and the rack 3. Alternatively both sets of vanes may be provided.
Patent GB-1069335-A (GB)
Title: Process for clamping and tightening diaphragms in filter press type cells for electrolysis
IPC: C25B9/19
Filed: 1965-07-23
Abstract: <PICT:1069335/C6-C7/1> A method for clamping and tightening diaphragms in filter press type cells for the electrolysis of aqueous hydrochloric acid comprises inserting the diaphragm 3 into a groove in the electrode frame 1 and clamping it with a wedge 4, then inserting an endless packing cord 5 into the groove and pressing the frame of the adjacent electrode 1a against the external part of the packing cord CD.
Patent GB-765465-A (GB)
Title: Improvements in or relating to radio wave guide systems
Inventor: KEMP JOHN
IPC: H01P3/08
Filed: 1953-11-13
Abstract: 765,465. Microwave networks. STANDARD TELEPHONES & CABLES, Ltd. Nov. 5, 1954 [Nov. 13, 1953], No. 31592/53. Class 40 (8). [Also in Group XL (c)] A microwave receiving head comprises a closed waveguide loop 7 having a mean perimeter equal to 6n quarter wave lengths, where n is an odd integer and a plurality of waveguide sections, one section 4 coupling a source of beating oscillations to said loop at a given point thereon two other sections 3, 5 coupling separately two halves of a balanced detector 33, 40 (Fig. 7), to said loop at points spaced n quarter wave lengths on either side of the first point and two further sections 2, 6 coupling two halves of a dipole aerial to the loop at points spaced 2n quarter wave lengths to either side of the first point. With this arrangement it may be ensured that none of the local oscillation energy reaches the aerial or appears in the output of the detector and in addition the local oscillator noise is balanced out. A short-circuited quarter waveguide 1 located opposite the local oscillator input point provides a D.C. path for the rectifier and a tuning adjustment, though this guide may be omitted if the arms 3 and 5 are extended an odd number of quarter wavelengths and shorted. The waveguide system is of strip line form and comprises an insulating sheet with strips printed on one side and a ground plane or interconnected strips on the other. Alternatively, the guides may be formed by printing strips on an insulating sheet spaced by an air gap from two ground planes in sandwich form. The widths of the strips are chosen to provide impedance matching between the branches of the loop and the strips 2 and 6 may be tapered to provide impedance matchings to the aerial. The guide 1 may be located on a separate sheet below the main sheet (Fig. 6, not shown), or may be printed on the main sheet (Fig. 3, not shown). Specifications 708,589 and 770,166 are referred to.
Patent GB-1469530-A (GB)
Title: 1,3-dioxolane-2-carboxamide derivatives and their use as herbicidal agents
IPC: C07D317/32
Filed: 1973-07-03
Abstract: 1469530 1,3-Dioxolane-2-carboxamide derivatives SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 1 July 1974 [3 July 1973] 31604/74 Heading C2C Novel 1,3-dioxolane-2-carboxamide derivatives having the general formula wherein R 1  and R2 each represents an alkyl group; R 3  represents a hydrogen atom, an alkyl group, an alkenyl group, an aryl group optionally substituted by fluorine, chlorine, bromine, iodine, alkyl, haloalkyl, alkoxy, alkylthio, carboxy or by alkoxycarbonyl, a nitrogencontaining heterocyclic group, a carbamoyl, carbamoylmethyl or thiocarbamoyl group optionally N-substituted by alkyl, haloalkyl, cycloalkyl, phenyl, alkylphenyl, halophenyl, nitrophenyl, alkoxyphenyl, or by alkenyl of 2 to 6 carbon atoms, an alkyl-, alkenyl- or arylcarbonyl group optionally substituted by chlorine, or an alkoxycarbonylmethyl group; and R 4  represents a phenyl group optionally substituted by halogen or by alkyl, with the proviso that when R 3  represents a hydrogen atom, an alkyl group or a phenyl group optionally substituted by alkyl, halogen or alkoxy then R 4  represents a substituted phenyl group, are prepared by either (i) reacting a compound of the formula wherein R 5  is an alkyl or acyl group, with an amine of the formula NH 2 R 3  to obtain a compound of the invention wherein R 3  is other than an optionally N-substituted carbamoyl group, or (ii) reacting a compound of the invention wherein R 3  is a hydrogen atom, with an isocyanate of the formula R 6 NCO wherein R 6  is alkyl, haloalkyl, cycloalkyl, phenyl, alkylphenyl, halophenyl, nitrophenyl, alkoxyphenyl, or alkenyl, to give a compound of the invention wherein R 3  is an optionally N-substituted carbamoyl group. The compounds of the invention possess herbicidal properties.
Patent GB-465808-A (GB)
Title: Method of operating water-cooled steam condensers
IPC: F28F19/00
Filed: 1935-11-15
Abstract: 465,808. Preventing corrosion. THALHOFER, W. Nov. 15, 1935, No. 31717. [Class 123 (i)] In a method of preventing corrosion in steam condensers such as marine condensers, there is maintained in the cooling water, only during the periods when the rate of flow of the cooling water is reduced to zero, proportions of corrosion preventing chemicals. Examples of such chemicals are sodium hydroxide or carbonate or corresponding potassium or calcium compounds, formaldehyde, acetaldehyde, acetone, dextrose, laevulose, alkali metal and alkaline earth sulphites, bisulphites, and thiosulphites, and pickling inhibitors such as mono- or trihydroxy benzene suphonic acids. An alkaline corrosion preventing compound may alternatively be formed in the cooling sea-water by electrolysis thereof. When the condenser is at rest for considerable periods the corrosive cooling liquid is withdrawn and the condenser filled with fresh water to which anti-corrosive reagents are added.
Patent GB-719360-A (GB)
Title: Insecticidal preparations
IPC: A01N25/04
Filed: 1952-12-16
Abstract: A pourable insecticidal preparation comprises (a) 10 to 75 per cent by weight of a finely divided solid material including one or more insecticides and one or more filter materials capable of absorbing at least 60 per cent of water, by weight of the dry filler, (b) 10 to 50 per cent by weight of a water-immiscible liquid having a viscosity below about 3000 centipoises at 20 DEG C, which does not solidify above 20 DEG C and which substantially does not include components boiling below 50 DEG C, (c) 0.25 to 25 per cent by weight of one or more emulsifying agents, and (d) 10 to 40 per cent by weight of water, the particle size of the solid components being below about 100 microns and not more than about 30 per cent by weight of said solid components being dissolved in the water-immiscible liquid. Specified filters, which preferably comprise 0.5 to 10 per cent of the insecticide, are silica gels, magnesium oxide and clays such as pyrophyllite, kaolinite, talc, Fullers earth and bentonite, stability is improved by the addition of resins (0.3 to 2 per cent of the preparation), e.g. synthetic resins such as coumarone and indene resins, phenol-formaldehyde resins, and natural resins.  Specified insecticides are naphthalene, p-dichlorobenzene, benzene hexachloride, D.D.T., and D.D.T. type containing fluorine or methoxy substituents, metaldehyde, aldrin, dieldrin, rotenone, tetraphenyl tin, lead arsenate, calcium arsenate; chloroethyl-b (p-tertiary butyl phenoxy) a-methyl ethyl sulphite; bis (p-chlorophenoxy) methane and 1.1 bis (p-chlorophenyl) ethanol; dinitro-o-ocresol and thiocyanates of sulphonic acids derived from polycyclic hydrocarbons such as pinene.  Specified water-immiscible liquids are chlorinated diphenyl, tetrachloroethane and other halogenated hydrocarbons; alcohols, ketones, esters, ethers, amines and silicones; hydrocarbon mineral oils, e.g. spindle oil, kerosine and gas oil; and vegetable oils such as cottonseed oil, castor oil and animal oils, e.g. sperm.  Specified emulsifiers are (a) non-ionic, e.g. ethers of alkyl phenols with polyethylene glycols and N-substituted long chain fatty acid amides, and (b) ionic, e.g. sodium salts of acid alkyl esters of sulphuric acid, sulphonates and oleates.  The larger proportion of the emulsifier is of the non-ionic type.  The solids may be ground with at least 25 per cent and preferably 45 to 70 per cent of liquid, preferably the water-immiscible liquid, the emulsifier dissolved in water or the water-immiscible liquid being incorporated before, during or after grinding.  Alternatively, the insecticide may be recrystallized from the water-immiscible liquid by cooling the heated solution or by adding the whole or a part of the water content of the preparation in the form of ice, the preparation then being ground in a mill.  The solids may have a particle size below 25 microns and even below 10 microns.
Patent GB-790709-A (GB)
Title: Improvements in heating devices utilising radiant heat
IPC: F24C15/08
Filed: 1955-11-08
Abstract: 790,709. Grilling and toasting apparatus. HEIMERL, O. Nov. 8, 1955 [Nov. 8, 1954], No. 31920/55. Class 28 (1). [Also in Group XI] A heater having a refractory radiant plate 6 surrounded by a reflector 8 can be mounted on a stand 2 so that heat is directed downwardly for grilling or toasting, or upwardly for cooking on a grid supported by the reflector 8. In this position, the handle 12 acts as an additional support. The plate 6 is heated by gas passing through perforations in plate and burning on its outer surface, or by electricity.
Patent GB-867268-A (GB)
Title: Process for preparing 3-nitro-azacyclo-alkanone-2-n-carbochlorides
IPC: C07D207/273
Filed: 1959-09-18
Abstract: The invention comprises 3-nitro-azacycloalkanone-2-N-carbochlorides and their preparation by reacting 2-chloro-azacyclo-2:3-alkene-N-carbochlorides with a nitrating acid and subsequently treating the reaction mixture with water. Specified starting materials contain from 5 to 12 carbon atoms in the cycloalkene group.  A preferred nitrating acid comprises a mixture of sulphuric acid, nitric acid and sulphur trioxide, in which the two latter components are present in equimolecular amounts.ALSO:An insecticidal composition comprises a 3-nitro - azacyclo - alkanone - 2 - N - carbochloride together with an inert solid or liquid diluent.
Patent GB-1279674-A (GB)
Title: Electroluminescent semiconductor devices and methods of making them
Inventor: LOGAN RALPH ANDRE
IPC: H01L21/00
Filed: 1969-06-25
Abstract: 1279674 PN Junction devices WESTERN ELECTRIC CO Inc 25 June 1969 [28 June 1968] 32034/69 Heading H1K [Also in Division C4] The N-type region of a gallium phosphide electroluminescent PN junction device is doped with sufficient sulphur to give a net donor doping of from 5 Î 10<SP>16</SP> to 2 Î 10<SP>17</SP>/c.c. and the P-type region is doped with nitrogen. A device of this type emits green light with improved efficiency and may be produced as follows: 50 grams of gallium are heated to 1000 C. for an hour in an evacuated quartz vessel then 5 grams of gallium phosphide and 100 Á grams of gallium sulphide are added and the vessel reevacuated, heated at 1200 C. for 6 hours, then cooled at 30 C./hour. Gallium phosphide crystals containing residual nitrogen are extracted in nitric acid and polished and etched 111 faces produced thereon. They are then disposed at the opposite end of a tipping boat to a mixture of gallium and gallium phosphide and heated at 900 C. in a flow of hydrogen and ammonia with a zinc containing boat maintained at 600 C. upstream. The boat temperature is next raised to 1040 C. to form a solution of zinc, nitrogen and gallium phosphide in the gallium and the boat tipped to flood the crystals. After slightly raising the temperature to cause wetting the boat is cooled to 900 C. over a period of 15-30 minutes. When cool the crystals are removed, heat treated in air for ¢hour at 625 C. and then provided with goldzinc or tin electrodes. In an alternative procedure sulphur doped N-type gallium phosphide is epitaxially grown on a nitrogen doped P-type substrate.
Patent GB-396975-A (GB)
Title: Improvements in or relating to carburetters
IPC: F02M17/02
Filed: 1932-11-14
Abstract: 396,975. Spray-carburetters. POLLAK, J. E., 20, Holborn, London.- (Industrie-Kontrolle Akt.-Ges.; 9, Nollendorfplatz, Berlin.) Nov. 14, 1932, No. 32207. [Class 7 (iii).] In a floatless carburetter having a suctionoperated fuel valve 30, the lift of the valve is limited by a stop bar 7 which engages the spring- loaded operating piston 10, and which is held by a spring 8 against a cam 6 on the spindle of the air throttle 5. The fuel valve is actuated by an interchangeable conical member 11 secured to the piston 10, and the cylinder 9 is closed by a screw plug 13 carrying a pin 14 for lifting the fuel valve manually. The initial position of the cam 6 and the length of the stop bar are adjustable. The piston is actuated by suction through passages 40<1> in the choke tube, a non-return valve 55, and a passage 16. Fuel is supplied to a chamber 19 and passes to the valve chamber 29 through a passage 21, a membrane-actuated pressure-regulating valve 23, and a passage 28. Primary air is drawn by suction through an opening in a membrane 47 controlled by a screw 46, and passes through a passage 41 and the space around the cone 11 and a passage (not shown) to mix with the fuel in the passage 34. Additional air from the passage 38 mixes with the fuel in the spraying nozzle 36.
Patent GB-629926-A (GB)
Title: Process for cleaning insulated wires
IPC: H02G1/12
Filed: 1947-12-06
Abstract: An insulated wire is cleaned by heating the wire in the flame of a spirit such as methylated spirit which is suitable for removing the insulation from the hot wire and then passing the wire through the flame into contact with the spirit beneath the flame so that the insulation is removed without the heated wire coming into contact with the air.
Patent GB-630790-A (GB)
Title: Improvements in and relating to electric fluorescent lighting equipment
IPC: F21S8/06
Filed: 1946-10-30
Abstract: 630,790. Lamps forming a line of tight. NEEL, E., and PYE, R. Oct. 30, 1946, No. 32225. [Classes 75(iii) and 75(iv)] A fluorescent lighting system comprises a beam adapted to traverse the space above the area to be illuminated and constitute a housing for the control equipment and a supply wiring conduit for a series of fluorescent tubes supported beneath the beam and arranged end to end along its length, said beam comprising one or more channel members 1, Fig. 1, each with its open side directed downwards and a cover for the open side of said beam comprising a series of trays 3, Fig. 2, detachably fixed to the member or members 1, each tray 3 being provided on its underside with lamp holders 26 for a fluorescent tube 27 and supporting the control equipment on its upper side. The choke unit 5, terminal block 8 and starting switch 9, associated with each fluorescent tube or group of fluorescent tubes, are carried on the tray 3 which is detachably connected to the channel beam 1 by releasable fastening means comprising cross pieces 20 centrally pivoted on pins 21 and adapted to engage the flanged lower edges 2 of the member 1. A reflector 12 is detachably mounted on each tray 3 by means of a pair of spring controlled rotatable T-pieces 13 each provided with washers 15 spaced by a spring 16; and each fluorescent tube 27 is supported at the ends by clips 26 in housings 25. The channel members 1 are provided with apertures at each end whereby they may be joined by connecting pieces 33 by which the fitting may be suspended by pendants in the form either of a chain 51 and ceiling rose 52, or of a rod 46 connected by a hooked bolt 36 to a ceiling bracket 47, or of a composite rod 34, adjustable in length by a turnbuckle 35, and connected by a hooked bolt 36 with a bracket 38 pivotally mounted on dependent webs 40 of a ceiling fitting 41. In an alternative construction the reflector may be supported at each end by a stepped portion of a housing 25 and retained firmly in position by a pair of pivoted springs, arranged one in each housing 25 and adapted to be urged against the adjacent end edge of the reflector.
Patent GB-1415832-A (GB)
Title: Process for the production of 1-nitroanthraquinone
IPC: C07C205/47
Filed: 1973-07-06
Abstract: 1415832 1-Nitroanthraquinone BAYER AG 6 July 1973 [6 July 1972] 32304/73 Heading C2C  1-Nitroanthraquinone is prepared by nitrating anthraquinone in the presence of at least one organic solvent which is inert under the reaction conditions. The solvent may be a halogen- or nitro-substituted aliphatic or alicyclic hydrocarbon, e.g. methylene chloride, 1,2-dichloroethane, 1,1,2,2-tetrachloroethane, 1,2-dichloropropane, chloroform, 1,1,2,2 - tetrachloroethylene, nitromethane and nitroethane. Nitric acid is preferably used as the nitrating agent, possibly with the addition of other strong mineral acids, sulphonic acids and/or Lewis acids. The process may be effected at - 20 C. to 125 C. and the organic solvent may be used in a quantity of 0À2 to 25 parts by volume per part by weight of anthraquinone.
Patent GB-1071535-A (GB)
Title: Improvements relating to polymers
IPC: C08F210/18
Filed: 1965-07-28
Abstract: Rubbery amorphous sulphur vulcanizable terpolymers are formed by copolymerizing ethylene, at least one higher 1-olefine having at least 3 carbon atoms and a monomer capable of rendering the resulting polymer sulphur vulcanizable in a solvent using a catalyst formed by mixing (1) an organoaluminium compound, (2) at least one organic orthovanadate or vanadyl acetylacetonate and (3) at least one of (a) elemental halogen, (b) hydrogen halides, (c) secondary and tertiary haloalkanes and aryl-substituted derivatives thereof, (d) allyl-type halides, (e) aryl-substituted halomethanes and (f) organic and inorganic halides of germanium, tin, silicon or lead, the halogen in (a) to (f) being selected from chlorine, bromine and iodine, the reaction being carried out under polymerization conditions in presence of a solvent, which may be the monomer.  The monomers imparting sulphur vulcanizability include cyclic and acyclic non-conjugated dienes having 5 to 12 carbon atoms.  Fulvene compounds are also mentioned.  Catalyst component (1) employed has the formula R3Al where R is a hydrocarbon radical selected from saturated acyclic, saturated cyclic and aromatic radicals containing 1 to 20 carbon atoms. Lists of catalyst component (3) are given.  In the examples ethylene, propylene and dicyclopentadiene are terpolymerized using as catalyst triisobutyl aluminium, tributyl orthovanadate and one of the following HCl gas, Cl2 gas, iodine, benzyl chloride, 1,4-diiodo-2-butene, t-butyl chloride; and dichlorodiphenyltin. The terpolymers may be vulcanized.
Patent GB-463745-A (GB)
Title: Improvements in instrument sterilizing devices
IPC: A61L2/26
Filed: 1935-11-22
Abstract: 463,745. Sterilizing-vessels. SCHOLL MANUFACTURING CO., Ltd., and NORRIS, G. THORNTON-. Nov. 22, 1935, No. 32402. [Class 81 (i)] A sterilizing device for dental &c. instruments comprises a base member a for containing a pad b in which formalin or other agent is absorbed, an instrument-supporting tray c in the form of an inverted cup having tubular pockets c<1>, c<2> and perforations c<3> therein and adapted to fit within the base and a cover d which fits on and encloses the tray.
Patent GB-428874-A (GB)
Title: Improvements in electric switches specially applicable to switches for thermostats
IPC: H01H37/68
Filed: 1933-11-22
Abstract: 428,874. Thermal switches. LEDWARD, T. A., 75, Dovercliffe Road, Stoneycroft, Liverpool. Nov. 22, 1933, No. 32550. [Class 38 (v)] A contact 5 on a bimetallic blade 4 is mounted in a fluidtight enclosure 2 which may be flexed about a point 2a in order to adjust the temperature at which the switch operates. The vessel 2 is preferably made of copper and current may be led through the vessel to a contact 3 adapted to co-operate with the contact 5. Fig. 6 shows a modification in which the bimetallic strip 4 is mounted in the movable end of the vessel 2 and bending of the vessel is effected by a screw 9<c>. The contacts 3a and 5<a> consist of wires arranged so that they are perpendicular to each other at the point of contact.
Patent GB-333808-A (GB)
Title: Improvements in or relating to shock absorbers or safety appliances for vehicles
IPC: B60R19/02
Filed: 1929-10-26
Abstract: 333,808. Kegresse, A. Oct. 27, 1928, [Convention date]. Safety appliances.- A safety appliance, particularly for use on motor-vehicles for traversing rough country, comprises a roll 3 of wood, metal or other material rotatably mounted on a fixed shaft 2 extending between the side members 1 of the chassis and located above and in front of the front wheel axles, the device serving as a shock absorber and also facilitating the surmounting of large stones and like obstacles. The roll may be constructed of a resilient or yielding nature, e.g. by substituting helical springs for the solid sides thereof, and the shaft 2 may also be resiliently supported.
Patent GB-1353202-A (GB)
Title: 2-methyl-thio or sulphinyl or sulphonyl-butanone-3-n-methyl- carbamoyloxine and their use as pesticides
IPC: A01N/
Filed: 1971-07-12
Abstract: 1353202 Oxime derivatives CONSORTIUM FUR ELEKTROCHEMISCHE INDUSTRIE GmbH 12 July 1971 [23 July 1970] 32602/71 Heading C2C Novel carbamoyl oxime derivatives of the Formula III:  where n is 0, 1 or 2, are obtained by reacting 2- methylthiobutanone-3-oxime with methyl isocyanate, with phosgene and methylamine or with N-methyl carbamoyl chloride to produce the compound where n is zero, and, if desired, oxidizing this to compounds in which n is 1 or 2. 3 - Methylthiobutanone - 2 - oxime is prepared by reacting methylmercaptan with 2-chlorobutanone-(3) followed by hydroxylamine hydrochloride. Pesticidal compositions comprise the above carbamoyl oxime derivatives as active ingredients.