baber/WOPTO huggingface dataset:
Patent GB-1273340-A (GB)
Title: Valve assembly
IPC: F16K1/34
Filed: 1970-09-21
Abstract: 1,273,340. Valves. FORD MOTOR CO. Ltd. 21 Sept., 1970 [2 Oct., 1969], No. 44827/70. Heading F2V. A valve 22 is raised under fluid pressure by a plunger 12 against a spring 39, a passage 17 being shut-off from a spill passage 16 at this time. Pressurized fluid passes through a bore 28 in the valve member into chamber 21. When the plunger 12 retracts and the passage 17 opens to the spill passage 16, the valve 22 closes, the land 23 first closing the chamber 18 followed by a plastics valve disc 34 contacting a valve seat 35. Both the disc 34 and seat 35 have generally circular grooves. The plastic ridges are sufficiently deformable to mate with the seat grooves to form a series of labyrinth seals.
Patent GB-1262655-A (GB)
Title: Bleaching of wood pulp
Inventor: ANDREWS DOUGLAS HAIG
IPC: D21C9/10
Filed: 1968-09-20
Abstract: 1,262,655. Bleaching lignocellulose. CANADIAN INDUSTRIES Ltd. 27 Nov., 1969 [20 Sept., 1968], No. 44904/68. Heading DIP. Lignocellulose, e.g. sulphate or sulphite wood pulp, is bleached by (1) the simultaneous or successive action of chlorine dioxide and chlorine while in aqueous acidic suspension, followed by (2) treatment with gaseous oxygen in an alkaline medium at super-atmospheric pressure and (3) washing with water. The oxygen partial pressure in step (2) may be 30-200 psi, the gas being derived e.g. from high pressure air, pure oxygen or a chemical oxygen source such as H 2 O 2 . The alkali may be NaOH, KOH, Ca(OH) 2 , Na 2 CO 3  or K 2 CO 3  to which MgCO 3  or MgO may be added. The pulp may be subjected to additional bleaching steps with chlorine or precursors thereof and/or with oxygen. In step (1) ammonia or a salt thereof, e.g. NH 4 Cl may be added.
Patent GB-1105638-A (GB)
Title: Arrangement for the supervision of the current delivery of an alternating current generator
Inventor: KINDL WERNER
IPC: H02J7/14
Filed: 1966-10-07
Abstract: 1,105,638. Supervisory arrangements for A.C. generators. FAHRZEUGELEKTRIK KARL-MARX STADT VEB. 7 Oct., 1966, No. 44933/66. Heading H2H. [Also in Division G3] A vehicle supply system comprises a starconnected alternator 1 having a field winding 7 controlled by a conventional voltage regulator 8 and a supervisory circuit formed by members 12-18 which is arranged so that an indicating lamp 12 is energized when the vehicle is stationary and is extinguished when the generator voltage attains a predetermined value represented by the setting of a voltage divider 15. If an open circuit should occur in the field 7, a resistor 18 provides an alternative earth path for the base of transistor 13 and causes the lamp 12 to be energized to indicate the fault. A similar effect is obtained if the lamp 12 is connected to the star point instead of to earth, although the lamp illumination is reduced in this modification.
Patent GB-1365548-A (GB)
Title: Safety arrangement for passenger carrying conveyor systems
IPC: B66B29/06
Filed: 1971-09-28
Abstract: 1365548 Endless conveyers ORENSTEIN & KOPPEL AG 28 Sept 1971 [28 Sept 1970] 45118/71 Heading B8A Apparatus for stopping a passenger conveyer should debris &c. become stuck between the tread of such a conveyer comprises a plurality of toothed segments 2 arranged to mesh with the grooves 7 of the tread elements 8 and slidably secured to a fixed landing plate 1. A bar 13, located in a recess 12 formed between the segments and the landing plate is secured at opposite ends to pivotable levers 11 and is arranged in abutment with a shoulder 2b of the segments such that when the segments are displaced by debris in the treads of the conveyer, the bar is moved in the direction of conveyance causing the lever 11 to pivot, and on so doing to actuate a switch 15 and stop the conveyer. In an alternative embodiment a bar 18 is caused to rotate on movement of the segments.
Patent GB-1437057-A (GB)
Title: Hydrocarbyl hydroperoxides
IPC: C07C409/14
Filed: 1974-10-18
Abstract: 1437057 Hydrocarbyl hydroperoxide TEXACO DEVELOPMENT CORP 18 Oct 1974 45234/74 Heading C2C A method of producing a hydrocarbyl hydroperoxide of formula where Z is a radical of formula wherein A is α,#-alkylene of from 3 to 8 carbon atoms, and R<SP>1</SP> and R<SP>2</SP> are each n-alkyl and total 3 to 39 carbon atoms, comprises contacting a hydrocarbon of formula wherein Y is cycloalkyl containing from 4 to 9 carbon atoms, or -CHRR<SP>2</SP>, where R<SP>1</SP> and R<SP>2</SP> have the meaning given above with a stoichiometric excess of a molecular-oxygen-containing gas at an elevated first reaction temperature, preferably between 130‹ and 150‹ C., and subsequently continuing said contact at a second reaction temperature which is more than 5‹ C. lower than the first temperature.
Patent GB-1205789-A (GB)
Title: Printing ink compositions
IPC: C09D123/02
Filed: 1967-10-04
Abstract: 1,205,789. Printing ink compositions. UNION CARBIDE CORP. 4 Oct., 1967 [4 Oct., 1966], No. 45307/67. Heading C3P. [Also in Division D1] Printing ink compositions comprise from 3.3 to 30% by weight of an ammonium and/or alkali metal salt of a copolymer of an ethylenically unsaturated monocarboxylic acid and an α-olefin; from 5 to 50% by weight of pigment; and water. The compositions may also include up to 40% by weight of a C 1 -C 4  aliphatic alcohol. The olefin component of the copolymer preferably has 2-10 carbon atoms, and the unsaturated acid component preferably 3-8 carbon atoms, e.g. acrylic acid, methacrylic acid or ethacrylic acid. The copolymer may also contain an additional component, e.g. an alkyl acrylate or methacrylate, vinyl acetate, or a vinyl or vinylidene halide. Pigments specified are clay, diatomite, barium sulphate, calcium carbonate, magnesium carbonate, lithopone, titanium dioxide, zinc oxide, white lead, carbon black, iron blues, ultramarine blue, chrome yellow, red, orange or green, cadmium yellow or red, molybdate orange, azo pigments, Hansa yellows, triphenylmethane derivatives and phthalocyanine pigments. Thickeners such as polyethylene glycol ethers may be included in the compositions if desired, and also an anti-foam agent such as octanol.
Patent GB-1032316-A (GB)
Title: Continonus reheat magnetohydrodynamic generating duct arrangement
IPC: H02K44/12
Filed: 1964-11-06
Abstract: 1,032,316. Generators operating by electromagnetic interaction with fluids. WESTING- HOUSE ELECTRIC CORPORATION. Nov. 6, 1964 [Nov. 27, 1963], No. 45338/64. Heading H2A. An M.H.D. generator duct has transverse injector struts spaced apart in the interelectrode direction at the upstream end of the duct. The struts are designed to offer minimum flow resistance and comprise an elongated plate member, which may wholly or partly comprise blades of zirconia with a coolant chamber or pipes, and a manifold which has ports angularly spaced relative to each other across its downstream edge. In operation the injectors supply fuel or air depending on the deficiency in the combustion products so that further burning takes place within the generating duct thus maintaining a high level of ionization.
Patent GB-1023272-A (GB)
Title: Apparatus for effecting step-like rotational indexing movements
IPC: H01H13/58
Filed: 1963-11-18
Abstract: 1,023,272. Ratchet gearing. UNITED-CARR Inc. Nov. 18, 1963 [Dec. 17, 1962], No. 45490/63. Heading F2Q. [Also in Division H2] A rotary stepping device which is stepped on by successive reciprocating movements of a push-button 44 comprises two fixed ratchet members 10 and 12 having circular cam tracks formed therein by teeth 30 and 42 respectively. Button 44 is slidable on a rod-like member 20 against the action of an internal spring and carries triangular projections 46 which engage the teeth 42 and 30 successively when the button is depressed and released, resulting in incremental stepping rotation of the button. The rod 20 and its receiving aperture in the button 44 have flats so that rod 20 rotates with the button 44 and thus steps a disc 52 carrying contact wipers 56 of an electric switch (see Division H2).
Patent GB-1025972-A (GB)
Title: Improvements in and relating to the manufacture of foam articles
IPC: B29C44/30
Filed: 1962-12-04
Abstract: 1,025,972. Moulding foamed resins. TECHNIFOAM CORPORATION. Dec. 4, 1962 [Dec. 5, 1961], No. 45782/62. Heading B5A. Polyurethane foam is moulded by depositing it in mould cavities in an endless belt 211 of e.g. polytetrafluoroethylene. The material may be allowed to foam against gentle pressure exerted by an endless belt 212. In a modification (Fig. 1, not shown) the shapes may be formed by a printing roller and deposited on to a plain belt. The foamed shapes may be heated by an infra-red lamp.
Patent GB-1027305-A (GB)
Title: "peek-a-boo" retrieval system
IPC: G06K21/04
Filed: 1962-12-04
Abstract: 1,027,305. Batten cards. R. C. LAWLOR. Dec. 4, 1962 [Dec. 6, 1961], No. 45863/62. Heading G4M. A stack of Batten cards are made of a semitransparent material, i.e. a material having a light transmission between 15% and 60% (preferably 30%). The transparency of the cards enables the user to estimate the number of cards, up to about 6, in a selected set which mask holes which coincide in the remaining cards of the set. The cards are described as being of particular use in assisting diagnosis of diseases. Symptom cards 10, Fig. 6 (not shown), are perforated in positions corresponding to diseases with which that symptom is associated. A master card 12 is perforated in each disease position, and each hole is identified by a number by means of which the disease may be ascertained from an index. The master card 12 may be divided into areas corresponding to the various types of disease. A field card 14 may also be used in conjunction with a set of symptom cards 10, this card having the area corresponding to a particular type of disease cut out or perforated in each position, the rest of the card being opaque or of a coloured transparent material. A set of complementary sympton cards may be used with the symptom cards, the complementary cards being perforated at the disease positions for which the associated symptom is absent. Similar sets of disease cards perforated in accordance with the associated symptoms may be employed. The different types of cards may be of different colours, complementary cards being of a colour which is complementary to that of the " positive " cards.
Patent GB-1062699-A (GB)
Title: Helically corrugated waveguides
IPC: H01P3/127
Filed: 1964-11-12
Abstract: 1,062,699. Waveguides. HACKETHALDRAHT-UND KABEL-WERKE A.G. and TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. Nov. 12, 1964 [Nov. 12, 1963], No. 46132/64. Headings H1W. In helically corrugated waveguide, the pitch angle changes sign at least once along the length of the guide, the angle varying either continuously or in steps to pass through a plane in which it is zero, whereby to compensate for the rotation of the plane of polarization of a wave propagated along the corrugated guide. For transmission of a band having a mean wavelength #, the length over which the angle changes from an extreme value of one sign to an extreme value of the other is arranged to be an odd multiple of #/4, to reduce reflections. The guide, which may be of circular or elliptical cross-section, may include extended portions having the extreme value of pitch angle. Bends exhibiting little electrical distortion can be produced by bending the guide symmetrically about a plane of zero pitch angle, and arranging that the planes of successive turns of the corrugation, before bending, intersect in an axis which constitutes a mirror image, with respect to the guide, of the axis about which the guide is to be bent (Figs. 3 and 4, not shown). Reference is made to a prior art method of reducing the rotation of the plane of polarization in a corrugated guide by the successive decrease and increase in depth of the corrugation.
Patent GB-1457128-A (GB)
Title: Substituted oxazolidines and thiazolidines
IPC: C07D263/04
Filed: 1973-10-03
Abstract: 1457128 Oxazalidine and thiazolidine derivatives STAUFFER CHEMICAL CO 3 Oct 1973 [13 Oct 1972 2 May 1973] 46160/73 Heading C2C Novel substituted oxazolidine and thiazolidine derivatives having the general formula wherein X is oxygen or sulphur; R is haloalkyl or alkylthio; R 1 -R 6  are hydrogen, (C 1 -C 4 ) alkyl, alkoxyalkyl or (C 1 -C 4 ) alkylol; provided that when X is sulphur and R 1  and R 2  are methyl then R is other than monochloromethyl, are prepared by condensing an amino alcohol or mercaptan with a suitable aldehyde or ketone with continuous separation of water, and reacting the product with an acid chloride in the presence of a hydrogen chloride acceptor. The condensation is suitably carried out in boiling benzene. The novel compounds are useful as antidotes against crop injury by various herbicides.
Patent GB-1098428-A (GB)
Title: Improvements in or relating to electric snap-action switches
Inventor: RUSSELL GROVER MCKEEL
IPC: H01H13/38
Filed: 1965-11-02
Abstract: 1,098,428. Retractive switches. PENN CONTROLS, Inc. Nov. 2, 1965, No. 46351/ 65. Heading H2B. A snap-action switch has a flexible contact blade 10 anchored at 14 and buckled by an adjustable U-clip 16, the blade being activated by a member 32 having abutments 38 acting on one side of the blade and having an adjustable extension 37 passing freely through the blade. The extension and the blade are acted on in the reverse direction by a reset plunger 42. Adjustment of the extension 37 varies the gap between the abutments 38 and part 41 of plunger 42, and thus varies the switch differential.
Patent GB-1327050-A (GB)
Title: Production of reinforced sintered tubes
IPC: B28B1/28
Filed: 1970-09-29
Abstract: 1327050 Metal fibre-reinforced sintered tubes ABEX CORP 29 Sept 1970 [28 Jan 1970] 46355/70 Heading B5A A mixture of sinterable particles and metal fibres dispersed in water are placed in a cylindrical centrifugal mould which is rotated to align the metal fibres preferentially normal to radii of the mould and to separate water; the sinterable tube is then drained of water, removed from the mould and dried in air before heating to sinter the particles as a matrix around the metal fibres. The metal fibres must have a coefficient of expansion higher than that of the sinterable particles and preferably have a length greater than ten times their diameter. The sinterable particles may be any sinterable non- metallic material e.g. silica, alumina, titania, zircon, silicon-carbide. The metal fibres may be any ferro-alloy e.g. stainless steel or nickelchromium alloy or highly refractory metals e.g. tungsten, molybdenum.
Patent GB-1006975-A (GB)
Title: A liquid absorbent and vapour releasant material
IPC: A61L9/04
Filed: 1962-12-07
Abstract: A liquid absorbent vapour released block of 2-20% porosity is produced by softening and swelling granules, of minimum dimension between 0.5 and 14.0 mm. of a thermoplastic capable of absorbing organic liquid of b.p. between room temperature and 100 DEG  C. and releasing it in vapour form, and pelleting the softened granules in a press.  Thermoplastics specified are cellulose acetate, polystyrene, acrylic acid, methacrylic acid and esters thereof, acrylonitrile, acrylonitrile-styrene copolymer, cellulose acetate butyrate, styrene-methylmethacrylate copolymer or cellulose propionate, which may be in the form of short shock extruded rods.  Solvents specified are ethylene glycol monoethylether benzyl alcohol, ethylene glycol monomethyl ether mono-acetate, 4-methyl amyl acetate, or dimethyl phthalate which soften the solid but do not dissolve it. CaCO3 may be added to prevent coagulation of the mix.  The mixture is pelleted under pressure and the pellets are dried in an oven at 60-90 DEG  C. or air dried prior to immersion in the volatile liquid, e.g. dimethylphthalate oil based or water soluble perfume.  On removal the excess surface moisture is drained off or the pellets are spun dry.ALSO:A deodorant or insect repellant block comprises bonded thermoplastic particles of minimum dimension 0.5-4.0 mm impregnated with oil based perfumes and/or dimethyl phthalate. Thermoplastics specified are cellulose acetate, polystyrene, acrylic acid, methacrylic acid and esters thereof, acrylonitrile, acrylonitrile/styrene copolymer, cellulose acetate butyrate, styrene/methylmethacrylate copolymer and cellulose propionate. CaCO3 may also be present.
Patent GB-1218190-A (GB)
Title: Method of incorporating ingredients in hydrophilic colloids
Inventor: PAUW ALFONS JOZEF DE
IPC: G03C7/388
Filed: 1967-10-11
Abstract: 1,218,190. Incorporating ingredients into hydrophilic colloids. GEVAERT-AGFA N. V. Oct. 2, 1968, No.46459/67. Heading G2C. A method of incorporating into a hydrophilic colloid composition a colour coupler or maskforming component carrying at least one sulpho group and/or carboxyl group in salt form comprises forming a dispersion in water of an organic solution of the said component either by dispersing the said component in a mixture of water and at least one poorly water-miscible organic solvent which has a solubility in water of at most 25% by weight at room temperature, or by dissolving the component in such a poorly water-miscible solvent and dispersing the solution in water and then (a) removing substantially all of the said solvent(s) during or after the formation of said dispersion forming thereby an aqueous solution of the said compound and admixing the said aqueous solution with the said hydrophilic colloid composition; or (b) admixing the resulting dispersion with the said hydrophilic colloid composition and simultaneously and/or subsequently removing substantially all of the said solvent(s) forming thereby a solution of the said compound in the said hydrophilic colloid composition. Alternatively the said component may be dissolved in the said solvent(s), and the organic solution formed admixed with an aqueous hydrophilic colloid composition substantially all of the said solvent(s) being simultaneously and/or subsequently removed. A wetting agent may be present when an organic compound or a dispersion thereof is mixed with water or an aqueous composition. The said component may be converted in situ into the said salt form by starting from the said component in its free acid form and dissolving the said component in the said organic solvent with or without water in the presence of alkali. The poorly watermiscible solvent may be removed by evaporation, preferably under reduced pressure and/or by applying heat. A minor amount of a solvent that is miscible with water in all proportions may be used in conjunction with the said poorly water-miscible solvent. The hydrophilic colloid composition may bean aqueous solution or melted gel of hydrophilic colloid, (and the colloid may be gelatin) or a lightsensitive silver halide colloid composition.
Patent GB-1165883-A (GB)
Title: Improvements relating to Electron Discharge Devices, especially Klystrons
Inventor: KREUCHEN KARL HEINZ ROBERT CHR
IPC: H01J23/00
Filed: 1965-11-03
Abstract: 1,165,883. Velocity-modulated tube; gettering discharge tubes. ELECTRIC & MUSICAL INDUSTRIES Ltd. 20 Oct., 1966 [3 Nov., 1965], No. 46595/65. Heading H1D. The collector of a discharge tube-as shown, the klystron of Specification 1,161,877 includes a tube 20 of gettering material having its side wall, over most of its area, spaced by a gap from the wall of a tubular recess in a block 24, of high thermal conductivity, to which tube 20 is secured at one end by an end-cap and stud 22, 23 of a material such that any alloy formed with the material of either tube 20 or the block 24 has a higher melting temperature than that of alloys formed between the latter two materials; the arrangement ensures that, in operation, tube 20 is raised to a sufficiently high temperature, and exhibits a sufficient temperature gradient along its length, to provide efficient gettering action. The tube 20 may be zirconium, titanium, hafnium, or alloys thereof, and may be supported additionally by small spacers 27, 28 of zirconium or tantalum; parts 22 and 23 may be of tantalum, niobium, tungsten, or tungsten/molybdenum alloy; and block 24 may be of copper. Reference is made to the use of the collector in a travelling-wave tube.
Patent GB-1023877-A (GB)
Title: Improvements relating to differential pressure cells
Inventor: PHILLIPS ROBERT STEPHEN
IPC: G01L13/02
Filed: 1963-11-27
Abstract: 1, 023, 877. Pressure gauges. EVERSHED & VIGNOLES. Nov. 25, 1964 [Nov. 27, 1963], No. 46897/63. Heading G1L. In a differential pressure cell the difference in two pressures P 1 , P 2  supplied to bellows 3, 4 produces a force on a plate 5 which force is resisted by a set of three subsidiary bellows 11 interconnected through a common channel 12 to a pressure transducer 13 including a diaphragm 14 connected to an electrical strain gauge.
Patent GB-1488522-A (GB)
Title: Powdered pharmaceutical preparations
IPC: A61K9/16
Filed: 1974-10-30
Abstract: 1488522 Preparing powdered preparations KYOWA HAKKO KOGYO CO Ltd 30 Oct 1974 [30 Oct 1973 (2)] 46993/74 Heading ASB A method of forming a powdered pharmaceutical preparation comprises emulsifying a pharmaceutically acceptable oil, or a pharmaceutically acceptable water-in-oil emulsion, in an aqueous medium containing a watersoluble, pharmaceutically acceptable film-forming substance capable, upon drying of the emulsion, of forming a film around the emulsified oil or water-in-oil droplets, and spray drying the emulsion or double emulsion so formed, wherein there is present, dissolved in the or, in the case of a double emulsion, in at least one of the two water phases, a water-soluble pharmaceutically active drug. Suitable drugs include mitomycin C, 5-fluorouracil, bleomycin and chloropromazine.
Patent GB-1332664-A (GB)
Title: Gantries
IPC: B66C19/02
Filed: 1970-10-06
Abstract: 1332664 Mobile gantry cranes B E WALLACE PRODUCTS CORP 6 Oct 1970 [8 Oct 1969] 47536/70 Heading B8B A gantry comprises an I-beam 14 supported by pairs of legs 17 each of which is pivoted above and offset from the longitudinal centreline of the beam 14 on pivots 18. The legs 17 are braced by braces 25 pivoted on pivots 27 coaxial with the pivots 18. The legs 17 are telescopic and their angular separation may be adjusted by a telescopic tie-bar 34, 35. The legs 17 are pivoted at 41 on the respective ends of the tie-bar 34, 35, these ends also carrying castors 45 whose castoring areas remain parallel for all settings of the tie-bar 34, 35. In the unloaded or lightly loaded condition the gantry is unstable laterally, the beam 14 being held away from contact with the legs 17 by springs 32. The offset of the pivots 18 from the centre of the beam 14 is sufficiently small so that the gantry is self-stabilizing under loaded conditions.
Patent GB-1004650-A (GB)
Title: Process for dissolving and optionally separating substances of low solubility
IPC: C01G1/00
Filed: 1963-12-03
Abstract: Vanadium slag is introduced into either aqueous ammonium sulphate or chloride solution acidified to pH2.  At 90-95 DEG  C. chlorine gas is passed into the liquid and a substantial portion of the vanadium and iron present in the original slag dissolved.  Barium-copper chromate catalyst is treated with a mixed solution of ammonium chloride and nitrate at pH 1.5 to 2.0.  After treatment with chlorine gas at 90-95 DEG  C. almost all the copper and a major proportion of the barium dissolved.ALSO:Difficulty-soluble silicates, oxides and salts of strong acids are dissolved in an acidic aqueous solution of an ammonium salt, or its equivalent, into which chlorine gas has been passed.