baber/WOPTO huggingface dataset:
Patent GB-1001480-A (GB)
Title: Cyanine dyes
Inventor: FICKEN GOFFREY ERNEST
IPC: C09B23/06
Filed: 1962-12-06
Abstract: The invention relates to compounds of the formula <FORM:1001480/C4-C5/1> wherein at least one of R1 and R2 represents a grouping of the formula -A-CONR4R5, where R4 and R5 are the same or different and are H or alkyl, and A is a saturated divalent aliphatic group of 2 or 3 carbon atoms of which at least two carbon atoms form a chain between the indicated carbonyl group and the nitrogen atom to which A is attached, and the other of R1 and R2 is a said group of the formula -A-CONR4R5 or is an alkyl or aralkyl group, R3 represents H or alkyl, X is an acid radical, e.g. halide, perchlorate, alkyl or aryl sulphate or sulphonate, n1, n2 and d each represent 0 or 1 and D1 and D2 are the same or different and each represent the non-metallic atoms necessary to complete a heterocyclic nucleus containing 5 or 6 atoms in the heterocyclic ring.  In the examples, D1 and D2 complete benzothiazole, benzoselenazole, benzoxazole, quinoline and indole rings which may be substituted by alkoxy, halogen, alkyl or aryl substituents. Compounds in which d=1 may be prepared by reacting a compound of formula <FORM:1001480/C4-C5/2> with a compound of formula <FORM:1001480/C4-C5/3> wherein X2 is an acid radical and Q is an alky (1-6C) ether or thioether, anilino or acetanilido group.  Compounds in which d=0 or 1 are also prepared by the methods of Specification 792,380.  Compounds wherein d=1 are also prepared by reacting a compound of formula <FORM:1001480/C4-C5/4> with an alkyl (1-6 C) orthoester and compounds in which d=0 are prepared by reacting the last-mentioned quaternary ammonium salts with a compound of formula <FORM:1001480/C4-C5/5> wherein R11 is halogen or alkyl or aryl mercapto.
Patent GB-1399796-A (GB)
Title: Apparatus for uniformly dispensing pourable substances onto a belt
IPC: B29C48/08
Filed: 1973-10-03
Abstract: 1399796 Continuous sheet casting SANDCO Ltd 3 Oct 1973 [11 Oct 1972] 46215/73 Heading B5A In a sheet casting apparatus comprising a bottomless storage box 4 from which viscous material, e.g. acrylic resin, is cast on to a moving belt 1, escape of material between the belt and the transverse sidewall 6 on the upstream side of the box 4 is prevented by a flow of gaseous or liquid medium directed at the gap, e.g. from air nozzles 9. Any sealing medium entering through the gap rises between the wall 6 and a further wall 11 inside the box to prevent contamination of the bulk. Similar nozzles 9 prevent egress of resin through the gap between the lid 10 of the box and an upper belt 2 co-operating with the lower belt 1. The gap at the bottom of the box 4 which are parallel to the belt movement may be similarly sealed with fluid medium or by labyrinth seals (Fig. 3, not shown).
Patent GB-1536506-A (GB)
Title: Method for the prevention of hot spot formation in a desulphurising adsorber for furnace gases
IPC: B01D53/50
Filed: 1976-11-08
Abstract: 1536506 Preventing formation of hotspots BERGWERKSVERBAND GmbH 8 Nov 1976 [7 Nov 1975] 46357/76 Heading BIL A method of preventing hotspots in an adsorber 5 containing carbon used for desulphurising gases from furnace 1 when the adsorber is not operating comprises feeding a gas which is free of oxygen or contains a maximum of 15% oxygen by volume from 18 so that it circulates via cooler 17 through the adsorber 5 and maintains at least atmospheric pressure where it circulates.
Patent GB-1159573-A (GB)
Title: Apparatus for the Production of Spherical Particles or Granular Bodies
Inventor: SCHAEFER HERBERT
IPC: B22F9/06
Filed: 1966-10-17
Abstract: 1,159,573. Granulating. HALBLEITERWERK FRANKFURT (ODER) VEB. Oct.17, 1966, No.46413/66. Heading C7X. Spherical metal particles of close tolerances are produced by discharging a thread of the liquid metal from a nozzled outlet of a vessel to pass an electrode near the nozzle outlet, the nozzle and electrode being maintained at different electric potentials to break up the thread into fragments which contract to form the spherical particles. The electrode may comprise one or more plates with circular holes therethrough and coaxial with the nozzle outlet.
Patent GB-1278944-A (GB)
Title: Arrangements for use with television camera tubes
IPC: H04N5/217
Filed: 1969-09-24
Abstract: 1278944 Television PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 24 Sept 1969 [27 Sept 1968] 46963/69 Heading H4F When a photo-conductive television camera tube 9, e,g, a vidicon, is in a continuously operative condition but is used to view an image only intermittently, the intervening periods are used to measure the dark current and so fix the black level of the intermittent picture signals. Fig. 1  shows the tube used in an X-ray system, but infra-red television is also referred to. A switch 1 controls an X-ray tube 4 and the tube 9 views an interposed image amplifier 6. Signals from the tube pass via an A.C. coupled amplifier 11 to an output 12 and are also clamped to a reference voltage during each line blanking period by a circuit 17 actuated by a pulse source 16, before passing to a peak rectifier 18, 19 provided with a leak 20. A switch 22 which is closed only when picture information is absent from the signal, i.e. it opens simultaneously with the closing of switch 1 and closes two fields later than the opening of the switch 1 for double interlaced scanning for example, connects capacitor 19 to a storage element 22, preferably of about 1/10the capacity of element 19, and the voltage on element 22 representative of the dark current is fed to amplifier 11 to provide a bias to obtain the correct black level when the image is viewed and switch 21 is open. A gate 23 switches the bias off during the blanking periods. The leak 20 serves to allow the excess voltage produced across capacitor 19 by the picture signals to return to the dark current value. As shown in greater detail in Fig. 2 (not shown), the voltage on capacitor 22 controls the current output of an F.E.T. feeding the base of a transistor of gate 23, which transistor is normally bottomed, but is cut off by the pulses from source 16 applied to its emitter. The collector voltage is applied to the emitter of a common emitter stage of the amplifier 11.
Patent GB-1459824-A (GB)
Title: Process for the preparation of liquids for biological appli cation and as oxygen carriers
IPC: C09K23/42
Filed: 1974-11-04
Abstract: 1459824 Blood replacement fluids PRODUITS GHIMIQUES UGINE KUHLMANN 4 Nov 1974 [7 Nov 1973] 47530/74 Heading A5B [Also in Division B1] A process for the preparation of emulsions of fluorinated compounds in water or in saline solutions comprises emulsifying the fluorinated compound in the presence of two fluorinated emulsifiers, one of which has a hydrophilic character and the other a lipophilic character. The substance dispersed may be perfluorobutylamine, perfluorinated butyl tetrahydrofuran or a partially or completely fluorinated aliphatic or cycloaliphatic hydrocarbon (many examples). The emulsifiers exemplified are non-ionic polyethylene-oxycompounds of the formula where R F  is a perfluoroalkyl radical of 4 to 40 carbon atoms, a is 1 to 4, and n 1 to 40. The emulsions are oxygen carriers and may be used to replace human or animal blood.
Patent GB-1518554-A (GB)
Title: Disposable filter element
IPC: B01D27/06
Filed: 1975-11-20
Abstract: 1518554 Filter elements EVANS ADLARD & CO Ltd 12 Nov 1976 [20 Nov 1975] 47753/75 Headings B1D and BIT An annular pleated paper filter element has corrugations which extend at right angles to the axially extending fold lines of the pleats, every forth or fifth corrugation having a greater height than the others and serving to space the sides of the pleats apart with minimum loss of filtering area. As shown in Fig. 2 the corrugation peaks on one side of the paper, corresponding to the interior of the filter element, may be coplanar so that they all abut a central support tube. The height h of the larger corrugations 14 may be 0.39 to 0.62mm. The pleats may be equal in radial depth (Fig. 4, not shown) or alternate pleats may be of reduced depth (Fig. 5, not shown). In manufacture, the paper is impregnated with epoxy or phenolformaldehyde resin before corrugating, and the resin can be applied only to the wire side of the paper to give the interior, downstream side of the finished element a smaller pore size than the outside. The paper is corrugated, then pleated, the resin is cured and the paper cut into strips, and each strip is wrapped round a perforate support tube, its ends are secured together and metal end caps fitted.
Patent GB-1508310-A (GB)
Title: Rotary belt cleaner
IPC: B65G39/073
Filed: 1975-10-15
Abstract: 1508310 Endless conveyer cleaning drive R MALVIK 15 Oct 1975 [6 Nov 1974] 47947/74 Heading B8A A conveyer belt is cleaned and/or driven by blades or other members 6 adjustably biased to extend from hollow rotor means 1 supported and driven by journals 3. The blades 6 are slidably mounted in rods 7 and are adjustably resiliently urged outwards into contact with the belt by means mounted on a rail 12 urged inwards by springs 8, but engageable by a filled body 4 or other means to engage the blades 6 with the conveyer belt. The pressure applied can be varied by the supply or release of fluid through a valve 5. If cleaning the blades are driven at a speed greater than the belt so that their area of action overlaps while if they are providing the drive for the belt more members 6 are provided having a greater contact area forming a substantially closed outer cylindrical face.
Patent GB-1086888-A (GB)
Title: Vinyl chloride-butadiene resin compositions and method of manufacture
IPC: C08F285/00
Filed: 1965-11-12
Abstract: A polymer composition comprises a major proportion of a vinyl chloride polymer containing at least 70% by weight of vinyl chloride and a minor proportion of a graft polymer obtained by polymerizing 80-30 parts by weight of monomers in the presence in aqueous suspension of 20-70 parts of a butadiene polymer containing at least 50% by weight of butadiene and at least 80% having a particle size below 0.1 micron in aqueous suspension using as catalyst 0.5-10 parts of a formaldehyde sulphoxylic salt and 0.01-3 parts of a peroxide, the monomers comprising 5-90% of vinyl or vinylidene aromatic monomer, 5-90% of methyl methacrylate and 5-60% of acrylonitrile. The vinyl chloride is preferably copolymerized with vinyl acetate and the butadiene with styrene, but other comonomers are mentioned; styrene is the preferred aromatic monomer and cumene hydroperoxide  the preferred peroxide.  Reactants may be added incrementally in forming the graft polymer.  In one example, there is also added to the composition, butyl zinc mercaptide and butyl stearate.
Patent GB-1193488-A (GB)
Title: Process for Preparing Ethylene Copolymers
IPC: C08F210/00
Filed: 1967-10-24
Abstract: 1,193,488. Polyolefines. POLYMER CORP. Ltd. 24 Oct., 1967 [24 Oct., 1966], No. 48341/67. Heading C3P. In the co-polymerization of ethylene and at least one other monomer in the presence of a catalyst by a continuous process wherein one or more liquid streams are fed into the reaction zone at a rate substantially equal to the product withdrawal rate and the catalyst in the product stream is continuously deactivated, the process is carried out at a constant predetermined temperature between 0‹ C. and 100‹ C. by suitable pre-cooling of at least one feed stream prior to entering the reaction zone, the residence time of the reactants in the reaction zone is from 6 seconds to 6 minutes, and the terminal mixing time (the time from the start of the mixing to the time when the sample achieves uniformity of composition which is not further changed by additional mixing) of the reactants within the reaction zone is not more than one-quarter of the residence time. The catalyst may be a hydrocarbon soluble vanadium compound and an aluminium alkyl halide and the molar ratio of aluminium to vanadium in the catalyst is preferably from 6 :1 to 12 : 1. Preferably an inert solvent such as hexane is used. The reactants may be continuously fed into the reaction zone as two liquid streams, one mixed feed stream comprising solvent, vanadium-containing catalyst and dissolved monomers and the other stream comprising the aluminium-containing catalyst and more solvent. It is preferred that the mixed feed stream is cooled before entering the reaction zone, for instance between 35 and 110‹ C. below the reaction temperature. Suitable monomers are ethylene, propylene or diolefinic monomers such as 1, 4 hexadiene, dicyclopentadiene, norbornadiene, methylene norbornene, ethylidene norbornene, other alkenyl norbornenes, cyclo-octadiene and tetrahydroindene. The copolymer preferably has an ethylene content of from 60 to 76 mole per cent, and 0À5 to 3À0 mole per cent of the third monomer may be present. A suitable reactor is shown in Fig. 1, wherein the feed streams enter the reactor 10 through circumferentially spaced inlet apertures 22. The feed streams are rapidly mixed by the impeller blades 21, and the product stream leaves the reactor via the orifice 16. By insertion of thermometers into the apertures 23 and 24, the reaction temperature may be measured. In the examples, terpolymers of ethylene, propylene and dicyclopentadiene are prepared using a catalyst system comprising vanadium oxychloride and aluminium ethyl sesquichloride or aluminium ethyl dichloride or aluminium diethyl chloride. The product stream leaving the reactor is treated with ethanol to deactivate the catalyst, followed by further additions of an anti-oxidant and acetic acid. The polymer product is obtained by the separation and steam stripping of the organic phase. The product may be compounded and vulcanized in a standard vulcanization recipe, with oil, carbon black, accelerators, activators and sulphur.
Patent GB-1357279-A (GB)
Title: Apparatus for carrying textile cloth for heat treatment
IPC: D06C3/00
Filed: 1972-10-20
Abstract: 1357279 Endless conveyers SUNTEX Ltd 20 Oct 1972 [4 Nov 1971] 48475/72 Heading B8A A conveyer comprises two pairs of parallel endless belts A, B, and C, D, the spacing between the belts of each pair being adjustable. The belts carry needles 19 for engaging the selvage of cloth strips X, Y. The belts A, B are driven by sprockets 5, 6 carried by a drive shaft 7, and the belts C, D are driven by sprockets 11, 12 carried by a drive shaft 10. Alternatively, the sprockets are rotatably mounted on the drive shaft 7 and are integral with chain wheels (20, 21, Fig. 2) connected to chain wheels (22, 23) carried by the drive shaft 10. Each pair of belts is contained in a housing 15 carrying slides 16 which engage guide rails 17, 18, movement of the slides 16 varying the belt separation.
Patent GB-1529733-A (GB)
Title: Fire resistant seals
IPC: E06B5/16
Filed: 1975-11-27
Abstract: 1529733 Fire resistant seal DIXON INTERNATIONAL Ltd 26 Nov 1976 [27 Nov 1975] 48795/75 Heading E1J A fire-resistant seal for use with doors or windows comprises a holder 11 of substantially tubular form with an elongate opening 15 containing intumescent material 12, a baffle 14 restricts access through the opening. The portion 13 may be used to attach the seal to the structure or adhesive may be used. A normal draught excluder may be incorporated (Fig. 3 not shown).
Patent GB-974318-A (GB)
Title: Gallery bullet
IPC: F42B12/74
Filed: 1962-12-28
Abstract: A powder mixture suitable for the production of a disintegrating gallery bullet by powder metallurgy comprises 70-83 parts by weight of lead powder, 30-17 parts by weight of iron powder and 0.1-1 part by weight of a thermosetting resin such as epoxy resins, polyesters and polyurethanes.  The lead powder size should have a maximum of 2% plus 40 mesh and a minimum of 65% plus 100 mesh and the iron powder should have a particle size of 98% minus 80 mesh and 25-35% minus 325 mesh.  Lithium stearate may be added as a lubricant and the lead powder should be oil treated prior to mixing with the other constituents in order to prevent oxidation.  After mixing the powder mixture is compacted and cured for three hours at 300  DEG F.
Patent GB-1316049-A (GB)
Title: Force hub sensor for control wheel steering
IPC: G01L5/22
Filed: 1971-10-26
Abstract: 1316049 Annular springs COLLINS RADIO CO 26 Oct 1971 [14 Dec 1970] 49576/71 Heading F2S [Also in Division G1] A two axis force sensor includes two concentric sleeve members 10, 11 separated by and in communication with an annular elastic member 12 deflections of which in the two axes is detected by sensors as an indication of the forces. The sensor may be interposed as a coupling between the control wheel of an aircraft fastened to outer sleeve 10 and the control system, the column being splined to the inner sleeve 11, to sense pilot applied elevator and aileron control forces. The two sleeves are maintained concentric by ball-bearing assemblies which permit concentric rotation of one sleeve with respect to the other and relative axial displacement. The elastic assembly 12, Fig. 4, is provided with mounting pads 26, 25 which are fastened respectively to the outer sleeve 10 by bolt 20 and inner sleeve 11 and stop member 18 by bolt 19. The stop member 18 fits in aperture 9 in the outer sleeve 10 so as to have a small clearance both along and transverse to the assembly axis whereby only limited rotational and translational motion between the sleeves is permitted. A longitudinal force applied to the outer sleeve 10 causes a stress to be imparted to the elastic member 12 which is detected by strain gauges 38, 39. Strain gauges 40, 41 detect the forces in the elastic member 12 due to rotational movement of sleeve 10. The elastic member 12 may be comprised of two pairs of arcuate members as shown, a single pair or a plurality of pairs.
Patent GB-1162869-A (GB)
Title: Electrical Energy Control Circuit
IPC: H02P7/28
Filed: 1967-11-03
Abstract: 1,162,869. Control of D.C. motors; supply systems. MICAFIL Ltd. 3 Nov., 1967 [11 Nov., 1966], No. 50021/67. Headings H2H and H2J. The armature of a shunt-wound motor M is supplied from a rectifier bridge B1 which is connected in series with a triac Tr and an inductance L to a single-phase source. Phaseshifted pulses for controlling the triac are derived from a network comprising rectifier B2 connected to a voltage divider R12, R13, so that filter capacitor C2 is associated with resistor B1 and diode D1 to produce a smoothed direct voltage. Transistors T1, T2 provide a squarewave output which is supplied through resistor R10 to capacitors C3, C4 in the emitter circuit of a unijunction transistor T3. When switch I-O is opened, capacitor C3 is charged and discharged by the square-wave voltage at each half-wave, whilst capacitor C4 is charged to a progressively higher voltage during successive half-cycles up to the voltage to which potentiometer P is set. The emitter of transistor T3 is supplied through diode D6 from the square-wave voltage source which is reduced by the drop across the resistor R10, this drop decreasing with time so advancing the firing angle of the triac. When the transistor T3 becomes conductive, capacitor C1 discharges through pulse transformer U to the control electrode of the triac. The load may be other than a shunt-wound motor, such as a series motor, lighting circuit, or heating device.
Patent GB-1255604-A (GB)
Title: Apparatus and method for producing metal tubes
Inventor: WEST ALBERT HENRY THOMAS
IPC: B21D5/12
Filed: 1967-11-03
Abstract: 1,255,604. Making tubes; welding by fusion. EDWARDS HIGH VACUUM INTERNATIONAL Ltd. 3 Feb., 1969 [3 Nov., 1967], No. 50035/67. Headings B3A and B3R. A metal tube is formed by positioning a metal sheet around a collapsible mandrel 1, seaming the sheet to form the tube and collapsing the mandrel 1 to facilitate removal of the tube. A preformed stainless steel sheet is clamped by clamps 7, 8 on the mandrel 1, which consists of two sets of quadrants 2. The edge of the sheet is positioned by seam locators 6. The sheet is welded to form the tube, copper strips 5, secured to one of the mandrel quadrants 2 in each set, preventing fused material adhering to the mandrel 1. After removing the clamps 7, 8, a nut 14 is-slackened to allow end plates 13, 16 to move axially outwards and the quadrants 2 to move axially along cone surfaces 20, 21 of fixed members 17, 18 under the action of, for example, springs 22 and, if desired, axially directed springs (not shown). The welded tube is then removed from the collapsed mandrel 1. The quadrants 2 may be so shaped that a conical tube is produced.
Patent GB-1363772-A (GB)
Title: Photographic silver halide emulsions
IPC: G03C1/485
Filed: 1971-10-29
Abstract: 1363772 Direct-positive photographic emulsions EASTMAN KODAK CO 29 Oct 1971 [30 Oct 1970] 50341/71 Heading G2C Direct-positive photographic silver halide emulsion of the internal latent image type contains as fogging agent a compound comprising a heterocyclic nucleus containing a 5- or 6- membered heterocyclic ring including a quaternary N atom carrying a group of formula:- CH 2  CH 2  COR (which R is H, aryl as defined or optionally substituted alkyl), the ring also carrying an optionally substituted lower alkyl group attached to a nuclear carbon atom adjacent to the quaternary N atom. Preferred fogging agents are of formula: (wherein Z completes a 5- or 6- membered heterocyclic ring, the additional atoms being selected from C, N, O, S and Se; R is H or optionally substituted 1-4C alkyl or aryl; either n is 1 and R 1  is H, aryloxy, aryl or optionally substituted alkyl, or n is 2 and R 1  is ethylene; X is anion).
Patent GB-1286086-A (GB)
Title: Polyimide and polyamide-polyimide as a semiconductor surface passivator and protectant coating
IPC: H01B3/30
Filed: 1969-10-15
Abstract: 1286086 Semi-conductor device WESTING- HOUSE ELECTRIC CORP 15 Oct 1969 [8 Nov 1968] 50667/69 Heading H1K A semi-conductor element has at' least' ,part of the surface thereof covered by a cured aromatic polyimide or polyamide-imide resin. A PN silicon device 102 is soldered to a silver-tungsten contact 114 by a layer of silver-lead-antimony alloy 118 and soldered to a molybdenum contact 116 by a layer of aluminium-boron alloy; The soldered assembly is sand blasted, spin etched, rinsed and dried and a layer 224 of the uncured resin in solution applied. 'The layer is cured at successive temperatures up to 250 C. The resin layer may include alizarin or a filler such as SiO 2 , Al 2 O a , BN, MgO, PTFE, quartz, mica, or glass fibre. The coated assembly is inverted and mounted on a base (202; Fig. 5, not shown) of Cu, brass, Al, Al alloy or steel with an intervening layer of Ag (208). The upper surface of the assembly has a layer of Au (218) disposed thereon which is diffused into the nickel (216) of a nickel coated molybdenum body (214). A braided conductor (220) is soldered to the body (214) by a layer of Ag + Au solder. A cup-shaped member (236) and dished-washers (232) maintain all the component parts in contact and an insulating sleeve (210) and washer (228) are provided to prevent the member (236) shorting out the rectifying stack. A ceramic cup (246) is welded to the base and forms a hermetic seal for the device. In an alternative embodiment (Fig. 2, not shown) the exposed PN junction is covered with an insulating layer of Si oxide or nitride or AI nitride and then the device is covered with the resin layer.