baber/WOPTO huggingface dataset:
Patent GB-1496479-A (GB)
Title: Method of cracking a sheet of brittle material
IPC: B28D5/00
Filed: 1976-09-16
Abstract: 1496479 Splitting RCA CORPORATION 16 Sept 1976 [29 Sept 1975] 38399/76 Heading B5E A method of cracking a sheet 16 of brittle material, such as a semi-conductor wafer having a coating of solder on a major surface thereof, the sheet having at least one plurality of parallel scribe lines thereon, comprises supporting the sheet in a cantilever manner at a position at least one scribe line away from an edge thereof substantially parallel with the scribe lines, and applying a shear force to the edge of the sheet remote from the support position whereby the sheet is fractured at said one scribe line. In apparatus for carrying out the method, the wafer is secured on a flexible adhesive sheet and with the score lines on its upper surface is placed in a recessed slot 14 in a base 12. A slide assembly 18 having a contact bar 20 for engaging the wafer is provided with blocks 22 slidable on guide rods 24 on the base. A rack 26 on the assembly 18 is connected by gearing 45 to a rod 42 extending through slots in vertically adjustable blocks 32. A cam 38 secured to the rod and provided with notches 40 co-operates with a guide 36 attached to a shear blade 30 which is mounted by springs on the blocks 32. In use, a knob 44 on the rod 42 is turned so that the wafer is positioned by the contact bar so that it overhangs the base 12 and one scribe line 48, Fig. 4, is beyond the base, the guide 36 being on the periphery of the cam. Further rotation of the cam causes the guide to drop into a notch 40 and permits the springs to urge the blade 30 downwardly into engagement with the edge of the wafer, the shear force acting to bend and break the wafer at the score line 48, rotation of the wafer about the edge of the base being prevented by stationary support 28. Further rotation of the knob causes the cam to raise the shear blade, the process being repeated until the wafer is broken at each of the score lines. The flexible adhesive sheet maintaining the separated pieces of the wafer in their original positions so that the wafer may then be turned through 90 degrees for breaking of the wafer along the second plurality of scribe lines.
Patent GB-854404-A (GB)
Title: Azo-dyestuffs derived from 1:3-dihydroxy phenyl ketones
IPC: C09B45/04
Filed: 1956-12-17
Abstract: The invention comprises dyes of formula:  <FORM:0854404/IV (c)/1> where R is an alkyl radical containing 1-6 carbon atoms, or a cycloalkyl radical, R1 is a benzene or naphthalene residue, n is 1 or 2, the radical R1 being substituted in #s-position to the azo-bridge by OH, OAlk, COOH or Hlg or containing in the molecule a grouping capable of forming metal complexes and, as water-solubilising group, at least one SO3H, COOH or OH group, and their metal complex compounds.  The dyes are made by coupling appropriate dihydroxyphenylketones and diazo components. Metallisation may be effected in substance or on the fibre. Representative of specified coupling components are 2, 4-dihydroxymethyl-, -propyl- and -cyclohexylketones.  Indicated as diazo components are #s-aminophenol and -naphthol sulphonic and carboxylic acids, aniline sulphocarboxylic acids, #saminophenol sulphocarboxylic acids, diaminodiphenyl sulphonic acid and #samino-phenol sulphonic acid --> aminonaphthol monoor disulphonic acid.  When dyes are obtained from 1 mol of a coupling component and 2 mols of a diazo component the second mol of diazo component may be replaced by a mol of a diazo component which does not form metal complexes, e.g. aminobenzene- and -naphthalene-and nitraniline sulphonic acids. The dyes colour vegetable, animal and synthetic fibres, e.g. wool, cellulose and polyamides, and leather.  Chromium, cobalt, copper, manganese, nickel and iron are specified metals.  Examples are provided of the preparation of the dyes and their use in dyeing processes typical of the diazo components used in the production of (1) monoazo dyes are 1- amino -3- nitro -2- phenol -5- sulphonic acid, 1- amino -2- naphthol -4- sulphonic acid and 2- amino -31-carboxy -41- hydroxydiphenyl-sulphone -4- sulphonic acid; (2) of dyes in which diazo component (2 mols) \sQ coupling component (1 mol) are 2- carboxy -5- sulphoaniline, 1-amino -3- chloro -5- sulpho -2- phenol, 1-amino -5- nitro -3- sulpho -2- phenol, 2- amino-31- carboxy -41- hydroxydiphenylsulphone -4-sulphonic acid, 4- nitroaniline -2- sulphonic acid, 1- amino -2- hydroxy -6- nitronaphthalene -4-sulphonic acid and 1- amino -3- nitro -5- sulpho-2- phenol <FORM:0854404/IV (c)/2> 1- amino- 8- naphthol -3, 6-disulphonic acid.  Various colours are obtained in the dyeing processes described e.g. blue, green, red, yellow, brown, grey and black shades are obtained.  Specification 512,839 is referred to.
Patent GB-1522653-A (GB)
Title: Olefin dicarboxylic copolymers and esters thereof as dewaxing aids
IPC: C10G73/04
Filed: 1975-09-19
Abstract: 1522653 Dewaxing oils EXXON RESEARCH & ENG CO 19 Sept 1975 [17 Oct 1974] 38539/75 Heading C5E The separation of wax from oil by chilling and removing the wax crystals formed is improved by incorporating an oil-soluble copolymer of C 18  to C 50  1-olefin and an ethylenically unsaturated dicarboxylic anhydride or a derivative thereof in the oil prior to the formation of wax crystals. 0À001-5 weight per cent of copolymer having a number average molecular weight of 1000-30,000 can be used per part of residual or distillate oil. The copolymer can be used as such or it can be partly or fully esterified with 0À5-2 moles of a saturated linear alkanol. The dewaxing can be carried out in the presence of a solvent; the solvent used in the Examples is a mixture of methylethyl ketone and toluene. The copolymers used in the Examples are produced by reacting maleic anhydride with C 18  1- olefin, C 20-24  1-olefin mixture, C 24-28  1-olefin mixture, C 30   +  1-olefin mixture and C 22-28  1-olefin mixture and are used both as such and also after esterification with C 18-22  alkanol mixture, C 10-18  alkanol mixture, C 20   +  alkanols, n-butanol and 2- ethyl-hexanol.
Patent GB-960856-A (GB)
Title: Improvements in or relating to magazine creels for yarn packages
Inventor: SLADE ARTHUR
IPC: D01H1/18
Filed: 1961-11-03
Abstract: 960,856. Creels; winding bobbins &c. BRITISH NYLON SPINNERS Ltd. Oct. 31, 1962 [Nov. 3, 1961], No. 39427/61. Headings D1C,D1J and D1M. "Topped and tailed" yarn packages 7, 9 have their transfer loops 31 held by a pile fabric pad 13 to keep the loop 31 clear of the yarn being unwound.
Patent GB-1002787-A (GB)
Title: Improvements in and relating to the prevention of carbonaceous deposits in diesel engines
IPC: F02B3/06
Filed: 1963-10-07
Abstract: The fouling of ports and/or valves in diesel engines by carbonaceous deposits when operated with a distillate diesel fuel, a residual fuel oil, or a mixture thereof, is prevented by uniformly mixing with the fuel a source of silica selected from organic and inorganic silicon compounds which provide free SiO2 at fuel combustion temperature, such source of silica being present in an amount to provide 30-300 ppm. of SiO2 in the fuel.  Suitable sources of silica are silica itself (e.g. of 5-10 millimicron particle size), and a solution of tetraethyl orthosilicate in methyl naphthalene.  Specifications 777,518 and 842,821 are referred to.
Patent GB-1420854-A (GB)
Title: Apparatus for measuring the moisture content of sheet material
IPC: G01N21/86
Filed: 1973-08-21
Abstract: 1420854 Measuring moisture content photoelectrically MEASUREX CORP 21 Aug 1973 [5 Sept 1972] 39490/73 Addition to 1367193 Heading G1A In an arrangement for measuring the moisture content of a material by the relative spectral absorption of radiation applied in such a way as to interact more than once with the material, means for causing the plural interaction includes a diffusing material arranged to intercept all radiation travelling from the source to the detector. As shown, Fig. 7, a web 14 the moisture content of which is to be measured passes between a pair of members 17, 18 having Al reflective surfaces 53, 54 covered with diffusing layers 51,52 of quartz which also cover the openings 21, 22 leading to the detector D and source S. In a modification for use with heavy paper the openings for the source and detector are aligned, Fig. 9 (not shown). This arrangement may be further modified by merely using quartz diffusing windows in the openings to the detector and source, the remainder of the facing surfaces of the members being specularly reflective. The system may be calibrated by removing the web, the quartz diffusers providing the dry standard. A single reflecting member carrying both source and detector may be used for thick papers which themselves act as diffuse reflectors.
Patent GB-1017857-A (GB)
Title: Apparatus for processing flat articles such as perforated cards or strips
IPC: G06K7/016
Filed: 1964-09-29
Abstract: 1,017,857. Statistical apparatus. SIEMENS & HALSKE A.G. Sept. 29, 1964 [Sept. 30, 1963], No. 39540/64. Heading G4M. [Also in Division B6] The passage of a perforated record card past a row of sensing photo-cells 11 is detected by two additional photo-cells 10, 15. A timing disc 12, in conjunction with a photo-cell 14, produces four pulses as each column (or row) of a card passes photo-cells 11, a gate 19 controlled by triggers 17, 18 passing every fourth pulse while photo-cell 10 is obscured by a card. Amplifier 20 receives the outputs from sensing cells 11. Photo-cell 10 also controls the feeding of cards from a magazine 1. Drive rollers 8 may be of steel and extend beyond the edges of the cards in the transport path. The co-operating rollers 9 may be rubber-surfaced, a pair of such rollers being provided for each roller 8, and each roller 9 of a pair extending at one end beyond the card edge so as to be directly engaged by roller 8.
Patent GB-929955-A (GB)
Title: A device for dispensing cooled beverages
IPC: F25D31/00
Filed: 1960-11-21
Abstract: 929,955. Dispensing liquids. SNELWEGERFABRIEK OLLAND N.V. Nov. 21, 1960 [Oct. 26, 1960], No. 39881/60. Class 116. [Also in Group XIII] In a beverage dispensing device in which the beverage from a container 5 flows to the dispensing nozzle 2 through a coil 8 in a bath of liquid 7 cooled by a refrigerator coil 9, a circulating impeller 12 in the bath is only operated during dispensing. The impeller 12 is driven by an electric motor 13 which is switched on during dispensing by a pressure switch in the nozzle 2. The dispensing may be controlled by a coin-freed device 1 or manually and the coils 8, 9 may be arranged coaxially one within the other.
Patent GB-928933-A (GB)
Title: Process of preparing ethylene polymers
IPC: C08F10/02
Filed: 1959-11-24
Abstract: Ethylene is polymerized in the presence of an inert liquid medium using a catalyst comprising both a titanium compound in which the titanium is in the tetravalent state and a compound comprising titanium in a valency state of less than 4, and formed by reaction in an inert liquid medium between titanium tetrahalide and a hydride, or organometallic compound of a metal of Groups I to III of the Periodic System, at least 50% of the total quantity of said reaction compound having been formed by a said reaction performed in the absence of the monomer to be polymerized and at least 70% of the total titanium of the catalyst present in the polymerization being in the tetravalent state.  The preferred titanium tetrahalide is titanium tetrachloride. Specified hydrides and organometallic compounds are aluminium trialkyls, cadmium dialkyls, diethyl aluminium hydride, di-isobutyl aluminium hydride, diethyl aluminium chloride, di-isobutyl aluminium chloride and ethyl aluminium dichloride. Specified liquid media are saturated aliphatic hydrocarbons, methyl cyclopentane, aromatic hydrocarbons and halogenated hydrocarbons.  The ethylene may be mixed with comonomers such as propylene or with hydrogen, nitrogen or saturated hydrocarbons. The polymerization may be effected continuously or batchwise, and the products treated in conventional ways, e.g. by treatment with methanol and water.  Examples describe the polymerization of ethylene in the presence of catalysts formed from titanium tetrachloride and diethyl aluminium hydride or di-isobutyl aluminium hydride in saturated aliphatic hydrocarbon liquid media. Specification 918,642 is referred to.
Patent GB-1100444-A (GB)
Title: 13-alkyl 17-halogenoalkynyl steroid 3-alcohols and their esters
Inventor: HUGHES GORDON ALAN
IPC: C07J75/00
Filed: 1963-08-14
Abstract: Novel steroids and D-homo-steroids of the formula <FORM:1100444/C2/1> (wherein each R is H or alkyl; R1 is alkyl of 2 or more carbon atoms; R2 is haloalk-1-ynyl trans to R1; R3 is H, alkyl with or without substituents, tetrahydropyranyl or acyl; Q is methylene or ethylene; Y is H or acyl; and the H atoms at the ring C junctions and R1 are trans-anti-trans; and there is a D 5(10) or D 4 double bond present) are prepared by reduction of the 3-ones and, if desired, acylation. The compounds of the invention are stated to possess progestational and pituitary gonadotropic inhibiting activity, and may be made up into pharmaceutical compositions with suitable carriers.
Patent GB-1479587-A (GB)
Title: Rotary fluid treatment devices
IPC: F28D19/04
Filed: 1974-06-20
Abstract: 1479587 Gas filters G APPLEGATE 20 June 1974 [24 Aug 1973] 40127/73 Heading BIT [Also in Division F4] In a rotary gas scrubber, a contaminated gas stream flowing through a first passageway 1 is cleaned by passing it through one side of a filter disc 16 rotatably mounted within a stationary housing 17, the filter disc being cleaned by a countercurrent flow of gas passing through a second passageway 12. Circumferential and diametrical seals 25 and 28 each comprising a large number of fine resilient fibres or bristles 27 formed of plastics material and attached to a metal backing strip 26 are provided between the filter disc and the housing to prevent leakage and/or cross contamination between the flows of cleaning gas and the gas to be cleaned. The filter disc 16 comprises an outer metal cylinder 20, a central shaft 21, a number of radial partitions 22 and intermediate hoops or rings 23, the spaces between the radial partitions 22 and the hoops 23 being packed with an air permeable mass of fine metal wire or ceramic fibre.
Patent GB-1016645-A (GB)
Title: Rotor hub assembly for a rotary wing aircraft
IPC: B64C27/37
Filed: 1963-10-11
Abstract: 1,016,645. Helicopter rotors. ELTRA CORPORATION. Oct. 11, 1963 [Dec. 5, 1962], No. 40295/63. Heading B7W. A rotor blade 38 is fixed to a blade holder 35 mounted on a spindle 34 by thrust bearings 51- 54 and a roller bearing 47. The inner race of the bearing 51 is split circumferentially to permit adjustment, and the blade holder and spindle are held together by nuts 55, 57. Opposed spindles 35, 35<SP>1</SP> are integral with each other to form a see-saw rotor mounted in bearings 15 on a hub 12 splined to the rotor shaft. The bearing 15 at each side of the hub is contained in an oil bath closed by a seal 22 and a sight glass 21. An oil bath is similarly formed around the spindle 34 by a seal 67 (see also Fig. 4, not shown) and diaphragms 68 (in the blade holder) and 69 (in the spindle), and a sight glass is fitted in the blade holder (shown at 75<SP>1</SP> in the opposite blade holder).
Patent GB-1519446-A (GB)
Title: Refractory fibre insulation
IPC: C04B30/02
Filed: 1974-09-17
Abstract: 1519446 Furnace wall construction McKECHNIE REFRACTORY PRODUCTS Ltd 5 Sept 1975 [17 Sept 1974] 40358/74 Heading F4B [Also in Division D2] An insulation system incorporates an insulation material comprising a length of felt 11 made of refractory fibres capable of withstanding temperatures of at least 2000‹ F., the fibres being bonded together by a colloidal inorganic substance which is stable at high temperatures, said felt being corrugated and folded in the manner shown. Hangers 41 may be incorporated in the felt to hang the insulation material on a supporting surface. In one embodiment, an exterior composite insulation panel comprising a central mat of slag or mineral wool sandwiched between metallic mesh is supported on a vertical wall surface by studs, and the insulation material comprising felt 11 is supported adjacent said panel by means of metallic prongs (Figs. 6, 7, not shown).
Patent GB-1049647-A (GB)
Title: Apparatus for spraying liquids
IPC: A47L1/08
Filed: 1963-10-14
Abstract: 1,049,647. Spray-producers. AS-MOTOR G.m.b.H. KOMM-GES. Oct. 14, 1963 [Oct. 15, 1962; July 19, 1963; July 30, 1963], No. 40392/63. Heading B2F. A spray producer comprises a container 10, a pipe 11 and a regulator valve 12. The latter embodies interengaging relatively rotatable hollow cylindrical portions 19 and 20 the former incorporating a mixing chamber 32 and a valve member 25 whilst the latter carries a nozzle member 14 and supports a hollow cylinder 39, a valve member 26 and a ball 28. This ball forms a non-return valve between the members 25 and 26 whilst the cylinder 39 is secured to the portion 20 such that rotation thereof relative to the portion 19 will allow liquid from the container to emerge from the spray nozzle. The container 10 surrounds an inner casing having an air inlet 15 and prior to the filling of the container, the inner casing is air inflated. The chamber 32 is thereupon filled with any desired chemical through aligned apertures 35 and 36 and the member 14 is removed from the valve portion 20. A source of water such as a tap is fixed to the portion 20 water being thereupon forced via the ball valves 25, 26, 28, the chamber 32 and the pipe 11 to the container 10 where it compresses the air-filled inner casing. When the pressures in the container are equalized the water source is disconnected from the valve 12 and the nozzle member 14 re-inserted. The apparatus is now ready for use, rotation of the valve portion 20 producing the desired spray. The inner container casing may be replaced by a sealed air-filled resilient ball or a ball of compressible solid material or the container may be split into two by a resilient diaphragm. Further embodiments show the container with a ball valve of magnetizable rubber which is adapted to engage a seating, at the inlet to the container, of a similar material. In another form the invention comprises a portable sprayer having a container 20, Fig. 5, to which a suitable liquid solution is fed through a regulator and a non-return valve device 108-see Fig. 4 (not shown)-a pipe 203, a tube 211, a mixing chamber 202, a rigid tube 210, a flexible tube 209 and a diaphragm pressure actuated valve 204. In this apparatus the spray energy is derived from the air trapped and compressed by the liquid solution in the container 201. The pressurizing of the latter is aided by a hand pump 206 actuation of which forces air into the mixing chamber 202.
Patent GB-1499344-A (GB)
Title: Apparatus for stacking printed products continuously arriving from conveyor means especially products arriving in an imbricated formation
IPC: B42C19/08
Filed: 1975-10-02
Abstract: 1499344 Stacking sheets FERAG AG 2 Oct 1975 [7 Oct 1974] 40394/75 Heading B8R Sheets 14<SP>11</SP> carried upwardly on conveyer 36 are transferred to the spaces between adjacent elements 58 of a continuous spring 15. The spring is expanded at the transfer location by a spreader, e.g. gear (or gears) which engages between adjacent elements. The sheets are carried from input conveyer 21 between belts 36 and 37 until they abut stop 64 arranged adjacent the spring. The spring, after being filled, is removed with the sheets in detachable guide rail section 18. Various forms of spring are described.
Patent GB-1102360-A (GB)
Title: Method of forming glass tubing
IPC: C07C17/38
Filed: 1966-09-09
Abstract: <PICT:1102360/C1/1> Tubing 18 conventionally drawn downwardly is subjected, whilst still plastic, to a sub-atmospheric pressure in box 11 to improve the uniformity of the cross-section.  Atmospheric or super-atmospheric pressure is applied internally in known manner.
Patent GB-1274906-A (GB)
Title: Cluster assembly and clip therefor
IPC: H01R24/12
Filed: 1969-08-13
Abstract: 1,274,906. Two-part coupling. VAN PRODUCTS Inc. 13 Aug., 1969 [26 Dec., 1968], No. 40542/69. Heading H2E. A connector clip 30 comprises a ferrule 66 for connection to the bared end of a lead wire 31 and a receptacle for a connector pin 12 joined with the ferrule by a shank 40, the receptacle comprising a longitudinal leg which is bent over to form a return leg 43 which is engaged with the shank to prevent it from spreading outwardly and which is divided into parts 49, 48 by a slot 47, the part 49 being thinner than part 48 and having a detent 50 for engagement with an edge of a hole 35 formed in the back wall 23 of a cluster block 20 having passageways 25 for containing the connector clips. The receptacle has a length substantially greater than its width and the shank is formed with flanges 60 having inwardly bent ears 61 for engaging the return leg 43. The passageway 25 is also formed with a shoulder 36 to restrain forward motion of the clip. Fig. 2 (not shown) indicates an arrangement of a cluster block containing connector clips 30 for an electrical connection to a motor inside a sealed compressor.
Patent GB-1109997-A (GB)
Title: Improvements in or relating to cathode structures
IPC: H01J1/28
Filed: 1965-09-23
Abstract: 1,109,997. Thermionic cathodes. SIEMENS A.G. 23 Sept., 1965 [24 Sept., 1964], No. 40551/65. Heading H1D. A dispenser cathode comprises a porous tungsten disc 3, having a diameter greater than 3 mm., covering a compartmented supply chamber formed in a core 4. The disc 3 is supported by a transverse, peripheral flange 2 of a cylinder 1 surrounding core 4, the cylinder 1 and core 4 having thin extensions 5, 6 welded together. A heater 8 is embedded in insulating material between cylinder 1 and a cathode sheath 7 welded to flange 2. The disc 3 is centred by a support sleeve 9 secured to flange 2 and also to a surrounding heat shield 10. The weld-joint between disc 3 and flange 2, and the porosity of disc 3 may be tested by means of a nitrogen stream before the core 4 is mounted in the cathode structure. The core 4 has at least 3, preferably 7, symmetrically arranged bores containing emissive material. Forwardly-projecting annular walls 12 may be provided between the bores to provide central support for porous disc 3.
Patent GB-1165823-A (GB)
Title: The use of Metal Rasters to Short-Circuit Hall Voltages in Semiconductor Magneto-Resistive Members
IPC: H01L43/04
Filed: 1967-09-06
Abstract: 1,165,823. Semi-conductor devices. SIEMENS A.G. 6 Sept., 1967 [23 Sept., 1966], No. 40830/67. Heading H1K. A raster of elongate metal parts 2 is provided between a magneto-resistive semi-conductor body 10 and a support 3 to which the body 10 is secured, e.g. by a bonding agent 4, to shortcircuit the Hall voltage set up across the body 10 when it is in use. The body 10 may be of InSb or InAs, and may contain elongate or laminate conductive inclusions, e.g. of nickel antimonide, aligned parallel to the raster parts, 2. The raster, of In or Ag, may be secured to the body 10 by alloying or adhesive bonding, or may be deposited electrolytically or from the vapour phase. The support 3 is of a ceramic, a ferrite, or a ferromagnetic conductor insulated from the semi-conductor body 10. After assembly and application of electrodes and leads 5-8 the body 10 is ground to a desired thickness and is then subjected to successive etching treatments and resistance measurements until the desired resistance value is achieved.