baber/WOPTO huggingface dataset:
Patent GB-1138570-A (GB)
Title: A method of preparing minute polymeric capsules
IPC: B01J13/02
Filed: 1967-09-22
Abstract: 1,138,570. Microcapsules. NATIONAL CASH REGISTER CO. 22 Sept., 1967 [10 Oct., 1966], No. 43157/67. Heading B8C. Microcapsules, each consisting of a wall of polymeric material enclosing a solid or liquid core particle, are made by dispersing the core material in a manufacturing liquid from which there is caused to separate a polymer-rich phase comprising a polymeric complex composed of two kinds of polymeric material joined by hydrogen bonding which coats the dispersed particles to form microcapsules in the usual way. Both types of polymer may be present in the initial manufacturing liquid, from which they are induced to separate by changing conditions, e.g. the pH may be changed or a solution of one type may be added to the system already containing the other under conditions allowing immediate formation of the complex and phaseseparation thereof. The polymer pair should comprise at least one "Hydrogen bonding acid" e.g. polyacrylic acid, poly(methacrylic acid), poly(vinyl alcohol), poly(vinyl pyrrolidone), methyl cellulose, carboxymethyl cellulose, poly- (styrene co - maleic anhydride), poly(vinylmethylether co-maleic anhydride) or poly(ethylene co-maleic anhydride) and at least one "Hydrogen bonding base" e.g. poly(ethylene oxide), poly(ethylene oxide co-propylene oxide), poly(propylene oxide), poly(vinyl pyrrolidone), poly(vinyl alcohol), poly(ethylene glycol), poly- (acrylic acid) or poly(methacrylic acid) (the designations "acidic" and "basic" being relative not absolute). The capsules may be dried in the usual way. Examples relate to the encap. sulation of stainless steel particles, ammonium dichromate and lemon oil.
Patent GB-1388598-A (GB)
Title: Heat transfer device comprising a hollow panel with controllable and adjustable heat transmissibility
IPC: F24S10/75
Filed: 1972-09-18
Abstract: 1388598 Heat transfer devices BETEILIGINGS-AG FUR HAUSTECHNIK 18 Sept 1972 [17 Sept 1971] 43157/72 Headings F4S and F4U A heat tansfer device in the form of a hollow panel filled with a vaporizable-condensible fluid comprises two opposed sheet metal walls 80, 81 seam welded together at 82 and spaced apart by a plurality of parallel webs 83 of heat insulating material received in grooves 84. As shown a corrugated member 86 e.g. of non- woven matting, is included within the panel to convey condensate upwardly by capillary action from wall 81 to wall 80. Alternatively the corrugated member 86 may be omitted, condensate then being conveyed downwardly from wall 80 to wall 81 by gravity. The panel is connected via a pipe 89 to a condenser 90 the temperature of which is controlled by means of a peltier element having one set of electrodes 91 in thermal contact with the condenser and the other set 92 in thermal contact with cooling fins 93. The direction of current flow can be selected by means of a changeover switch 94. By varying the temperature, and hence the vapour-condensate ratio within the panel, the rate of heat transfer across the panel can be controlled. In a modified embodiment (Fig. 3, not shown), the rate of heat transfer across the panel is controlled by setting up a temperature gradient between two regions (100, 101) of the condenser. A peltier element (103) cools one end of the condenser while the other end is heated by an electric heating device (104); condensate is collected in a plurality of individual containers (102).
Patent GB-1099262-A (GB)
Title: Improvements in or relating to calorimeters
Inventor: SHERWIN KENNETH ARTHUR
IPC: G01N25/00
Filed: 1963-11-02
Abstract: 1,099,262. Differential thermal analysis. FISONS FERTILIZERS Ltd. Oct. 19, 1964 [Nov. 2, 1963], No. 43334/63. Heading G1N. A calorimeter comprises two copper cylindrical cells 16, 19, Fig. 1, for sample and standard materials respectively, contained in a copper shell 18 and thermally connected to it by fins of constantan (17, 20, 21, 22, Fig. 2, not shown), any difference in temperature between the cells, due to the different natures of the materials contained therein, when the shell 18 is heated by a coil 6, causing different thermoelectric voltages to be generated at the copper-constantan junctions, this difference being detected by a galvanometer (not shown). The heat from the coil 6 is conveyed to the shell 18 primarily by radiation, and the temperature of the shell 18 is raised, or lowered, continuously at a rate of between 1 and 3 per minute. A reflecting shield 12 of tin plate surrounds the copper shell 18, and a further copper vessel 5 and a casing 13 contain the whole assembly, cooling ducts 4 being provided. The whole device is in two separable halves, the cells and shell 18 being divided by a mica gasket 11, and the shields 5, 12 and casing 13 being separated by a paper ring 9. The temperature of the copper shell 18 is measured by a platinum resistance wire (not shown). The device may be used quantitatively to measure enthalpies, or qualitatively to detect isothermal transitions, cessation of phenomena, dehydration, exothermal changes or supercooling.
Patent GB-1087539-A (GB)
Title: 3,6-disubstituted flavan derivatives and their preparation
IPC: C07D311/60
Filed: 1966-09-29
Abstract: Novel 3,6-disubstituted flavan derivatives of the formula <FORM:1087539/C2/1> wherein R1 is an alkyl or alkoxy group containing 1 to 6 carbon atoms, R2 is hydrogen, an alkyl group containing 1 to 6 carbon atoms or a -(CH2)n-NR1R11 group, R1 and R11 are methyl or ethyl groups or which, together with the nitrogen atom to which they are joined, constitute a pyrrolidino, piperidino or morpholino group, and n is 2 or 3, the esters of the above compounds wherein R2 is hydrogen and the acid addition salts and quaternary ammonium derivatives of the nitrogen-containing compounds are prepared (a) by reduction of a flavene, flavone, flavanone, flavanol or flavylium salt of the formula <FORM:1087539/C2/2> wherein Y is <FORM:1087539/C2/3> wherein X- is an anion of a strong acid, Z is OH or = O and a protected phenolic hydroxy group may also be present; (b) by cyclising a 2,4-disubstituted phenol of the formula <FORM:1087539/C2/4> wherein W is -CR1 = CH- or -CHR1 = CHX1-, X1 is OH, Cl, Br or I and a protected phenolic hydroxy group may also be present; (c) by cyclising a 4-substituted phenol ether of the formula <FORM:1087539/C2/5> followed in all the said methods by optional saponification of an esterified hydroxy group in a flavan derivative of the first general formula, by optional alkylation or acylation to another flavan derivative of the first general formula or by optional conversion to an acid addition salt or quaternary ammonium compound thereof.  The 2,4-disubstituted phenols of the third general formula above are prepared by condensation of a hydroquinone derivative, optionally esterified or etherified, with a compound of the formula X1-CH2-W-C6H6, by reaction of benzaldehyde with a Grignard reagent of the formula <FORM:1087539/C2/6> wherein Hal is chlorine, bromine or iodine, or by reduction of a chalcone of the formula <FORM:1087539/C2/7> Pharmaceutical compositions comprise a flavan derivative of the first general formula above or a physiologically compatible acid addition salt or quaternary ammonium compound thereof as active ingredient in admixture with a pharmaceutical carrier and may be administered enterally, parenterally or topically.
Patent GB-1279097-A (GB)
Title: Improvements relating to composite material reticulated structures
Inventor: BISHOP PETER HAROLD HOWARD
IPC: D04H3/12
Filed: 1968-09-13
Abstract: 1279097 Splints NATIONAL RESEARCH DEVELOPMENT CORP 10 Sept 1969 [13 Sept 1968] 43677/68 Heading A5R [Also in Divisions B5 and Dl] A reticulated structure is formed of carbon filaments impregnated with a cold-curing resin mix (see Division Dl). The impregnated structure is stored at a temperature below which curing of the resin takes place. After thawing to room temperature the structure can be manipulated and applied to a patient's body to form a splint.
Patent GB-927781-A (GB)
Title: Improvements in or relating to apparatus for producing time scale markings on magnetic records
Inventor: MAUCHEL DEREK JOHN
IPC: G11B20/16
Filed: 1961-12-06
Abstract: 927,781. Recording-apparatus. COMMUNICATIONS PATENTS Ltd. Dec. 6, 1961, No. 43708/61. Class 106 (4). Apparatus for producing time scale marks on a magnetic recording medium comprises a source of equally-spaced electrical time signals, a plurality of bi-stable electrical units connected in cascade so that together they constitute a signal counting device of which each binary unit provides an output indication of the sense of one digit of a binary number which is a count of the number of time signals fed into the device, a multi-channel switch for repeatedly sampling in sequence the outputs of at least some of the binary units to provide digits of the binary number, and a recording head arranged to record on the magnetic recording medium a signal denoting a binary number indication of the time elapse since a predetermined reference time. An eight-track magnetic tape is used in an aircraft data recorder to store data from a larger number of sources in the aircraft, the system for sharing the tracks including a highspeed, rotary, multi-channel sampling switch 10, Fig. 1. One bank 11 is used to feed time signals through terminal 26 to an amplifying circuit (not shown) for recording in one track of the tape reserved for time marks. The wiper shaft 17 is driven one revolution per second by a synchronous motor 20 through reduction gearing 19 and a " Geneva Cross " intermittent movement 18. Each time the wiper 11<SP>1</SP> dwells on contact K1 of bank 11 a capacitor 22 discharges and so supplies a pulse, once a second to both terminal 26 to record a time mark and to a pulse shaping unit 27 feeding the first of three binary counters 28, 29, 30 connected in cascade. The first counter 28, Fig. 2, comprises two groups of bi-stable units 40 to 43 and 44, 45 and gates 46, 47. The units 40 to 43 make a binary count of the first fifteen seconds, are zeroized and feed a pulse to the units 44, 45 which count four " fifteens," are zeroized and feed a pulse to counter 29. Counter 29 is the same as counter 28 and thus counts minutes indivudually up to fifteen and in groups up to four " fifteens " whereupon it is zeroized and feeds a pulse to counter 30. Counter 30 has four bi-stable units and counts hours up to fifteen. The six bi-stable units of counter 29 and the four of counter 30 are connected to contacts K2 to K11 of bank 11 so that a binary number is marked on the time track every second representing the elapsed time in minutes and hours.
Patent GB-1089336-A (GB)
Title: Improvements in rack and pinion steering gear for vehicles
Inventor: PARKER ROBERT WILLIAM
IPC: B62D5/22
Filed: 1963-11-07
Abstract: 1,089,336. Toothed gearing. CAM YEARS (CLEVEDON) Ltd. Nov. 2, 1964 [Nov. 7, 1963], No. 44067/63. Heading F2Q. A vehicle rack and pinion steering gear has an hydraulic damper between the longitudinally movable rack and the rack housing to damp out road wheel shock and vibration. A stationary piston 14, fast with a housing end cap 12, mates with an oil-filled cylinder 7, on the end of the rack 1 having centralized drag-link points 3, to form two pressure chambers 15, 16 connected by a one-way spring valve 18 in the piston 14. Rightwards movement of the rack forces oil through the piston valve 18 from chamber 15 to chamber 16 and from there via a one-way adjustable valve 20 to an annular rack chamber 8 surrounding the cylinder 7. Leftwards rack movement forces oil from chamber 16 through the valve 20 to chamber 8 and from there through a one-way spring valve 22 to the chamber 15. The valves may be adjustable. A further embodiment operates similarly and has an oil groove instead of the annular chamber 8 which is also connected to an oil reservoir. In another embodiment, Fig. 3 (not shown), an oil cylinder (37) in the rack end mates with a plunger (33) fast in the end cap, and the rack end has an annular piston (30) forming with a housing cylinder (32) an oil chamber (38). Rightwards or leftwards rack movement transfers oil between the rack chamber (37) and the housing chamber (38) through a two-way valve (40) in the annular rack piston. The chamber (38) is connected via a low-pressure one-way valve (44) to an oil reservoir (41) in the housing end cap.
Patent GB-1534883-A (GB)
Title: Socket and heat sink for an electronic component
IPC: H01R12/70
Filed: 1976-10-25
Abstract: 1534883 Two-part electrical connectors REDPOINT Ltd 25 Oct 1976 [27 Oct 1975] 44210/75 Heading H2E [Also in Division H1] An assembly for mounting an electronic component, e.g. an integrated circuit 10 of the duel in-line package type, comprises a socket 12 having receptacles for receiving conductor pins of the electronic component, a heat sink 16 having a heat transfer surface for engaging the component and a heat dissipating surface, and means on the socket for interlocking directly with means on the heat sink to mount the component therebetween. As described the heat sink 16 (Fig. 1) is provided with upstanding arms 16b, or cooling fins, and may be of aluminium which is anodized or painted black for greater radiation efficiency. The heat sink may be provided with indentations 20, which engage in and move along slots 18 in the socket 12 or vice versa so as to clamp the component therebetween. In a modification (Fig. 3), the heat sink 30 is provided with a tongue 32 on each of two opposite sides thereof which is received in a respective loop 34 in the socket 36, being bent up after assembly.
Patent GB-891898-A (GB)
Title: Photoplanographic printing plate and process for its production
Inventor: SCHWERIN ANDRE KURT
IPC: G03F7/06
Filed: 1959-12-30
Abstract: 891,898. Photoplanographic printing plate production. GENERAL ANTLINE & FILM CORPORATION. Dec 30, 1959 [Jan. 21, 1959], No. 44242/59. Drawings to Specification. Class 98(2). A positive-working process comprises exposing a plate having a hydrophilic base bearing a hardenable light-sensitive coating, removing unhardened portions thereof, applying a water dispersible metallo-organic Werner complex in which trivalent chromium or aluminium is co-ordinated with a carboxylic acido group, "fixing" this complex and removing the hardened coating and complex adhering thereto from the light-struck areas. The Werner complexes are described by reference to various publications, and they have the property of adhering to hydrophilic surfaces but can be made receptive to greasy ink. In Example I an aluminium sheet or foil is cleaned, silicated, provided with a sensitive layer comprising acrylamide, N,N<SP>1</SP>-methylenebis-acrylamide, gelatine and silver nitrate, at which state it may be stocked for several months when tightly closed; exposed under a pattern by visible light, washed out with warm water or dye solution, treated with an alcoholic solution of a proprietary Werner complex, fixed by making the latter alkaline as by fuming with ammonia, softly brushed to remove coating and complex from the exposed areas, treated with a zinc oleate "developer" comprising this substance along with dimethylformamide, butyl acetate and nigrosine dye in methanol, to make the hydrophilic portions more visible and ink-accepting, and is then ready for mounting on a printing machine. Six further examples describe other sensitive layers and refer to Example 1 for procedure therewith. Two other " developers" and numerous other supports, monomers, polymers, colloids, solvents, sensitisers and such like are quoted. Specifications 721,660, 858,037, 866,631, 867,980, 879,892 and 885,128 are referred to.
Patent GB-1527994-A (GB)
Title: Thermodynamically stable product for permanent storage and disposal of highly radioactive liquid wastes
IPC: G21F9/00
Filed: 1975-10-28
Abstract: 1527994 Storage of radioactive waste KERNFORSCHUNGSZENTRUM KARLSRUHE GmbH 28 Oct 1975 [30 July 1975] 44269/75 Heading C1M [Also in Division G6] For permanent disposal and storage, radioactive waste is mixed with the components of a borosilicate glass, together with a specified nucleation agent, and the mixture is heated to form a glass. The radioactive waste may be an aqueous solution resulting from nuclear fuel reprocessing which has been denitrated by treatment with formic acid. The waste may contain gadolinium to avoid criticality. The nucleation agent may be an oxide or fluoride of Li, K, Mg, Mo or Cr, aluminium fluoride, or a particulate noble metal. Heating of the mixture to form the glass may take place at 1050 C.-1200 C. for 3-5 hours, followed by cooling to about 400 C. and maintaining at this temperature for about 24 hours, heating to 600 C. for about 24 hours, and then cooling slowly to ambient temperature.
Patent GB-1022397-A (GB)
Title: Improvements in devices for adjusting the start of injection in fuel injection pumps
IPC: F02M41/12
Filed: 1964-10-30
Abstract: 1,022,397. Fuel injection pumps. ROBERT BOSCHE G.m.b.H. Oct. 30, 1964 [Nov. 2, 1963], No. 44332/64. Heading F1A. In a fuel injection pump having a cam drive in which the stationary part of the drive is angularly adjustable relative to the rotary part to vary the timing, the reaction of the cylinder pressure tending to alter the adjustment is counteracted by a friction lock on the adjustable member. The reaction of the cylinder pressure may force the adjustable member into frictional engagement with a fixed member or, as shown, a wedge member 40 is forced into engagement with the adjustable member 10 during the pressure stroke by a piston 41 the cylinder space 43 being supplied with pressure pulses during the injection stroke under control of a valve 45.
Patent GB-1167723-A (GB)
Title: Improvements in Vapour Generating and Superheating Unit
Inventor: CHARCHAROS ANTHREAS NICHOLAS
IPC: F22B1/06
Filed: 1965-10-20
Abstract: 1,167,723. Vapour generators. BABCOCK & WILCOX Ltd. 20 Oct., 1966 [20 Oct., 1965], No. 44384/65. Heading F4A. Two series-connected identical heat-exchangers (Fig. 1, not shown) are respectively used for generating and superheating vapour by heat exchange with liquid sodium coolant from a nuclear reactor (not shown). A third identical heat exchanger is provided for reheating the vapour. The reactor coolant flows in parallel through the superheating and reheating heat exchangers, the combined flows then passing to the heat exchanger for vapour generation, which comprises a cylindrical pressure vessel 12A closed at its upper end by a tube plate 62 from which parallel tubes 12 extend between annular water inlet and steam outlet headers 64, 66, respectively. The tubes, which are unjointed throughout their length and are welded to the vessel only at their extremities, have straight downcomer portions in annular space 78 defined by the wall of the vessel and cylindrical baffle 68, and spiral upriser portions in the space within the baffle 68. Liquid sodium flows over the tubes in a single pass between an inlet 70 and an outlet, thereby establishing a liquid level 76 in the vessel, above which an inert gas blanket 80 protects the tube welds from corrosion. The generator may be of the once through or the forced recirculation type.
Patent GB-1221168-A (GB)
Title: Knitted collars of knitted garments
Inventor: PICKER JOHN
IPC: A41B3/00
Filed: 1969-09-09
Abstract: 1,221,168. Collars. COURTAULDS Ltd. 9 Sept., 1969, No. 44527/69. Heading A3V. A knitted collar 1 has integral tubular margins 2 at its end edges and that side of each margin which is on the inside of the collar when attached to a garment and turned down, having an opening 7 through which a stiffener 8 can be removably inserted into the margin. The collar may be made of a thermoplastic material by a knitting machine which closes the outer ends 6 of the margins and leaves the inner ends 5 open. Two non-stick coated crass electrode prongs 10 mounted on an insulating block 11 and inter-connected by an earthed metal bar 9 are inserted into the margins through the open inner ends 5. Second electrodes 12, mounted on a conducting bar 13 connected via a switch 14 to a source of radio frequency power, are lowered to press the fabric of the margin against the prongs 10 and fuse the material to form openings 7. The single operation of a foot switch may control the lowering, raising and switching sequences. The electrodes can be replaced by directly heated elements or if a non-thermoplastic material is used the openings may be formed in a manner used for buttonholes. After the openings 7 are formed the collar is attached to the garment along its edge 3 by a seam 4 which closes the inner ends 5 of the margins.
Patent GB-898079-A (GB)
Title: Improvements in a molded pulp egg carton
IPC: B65D85/32
Filed: 1960-12-29
Abstract: 898,079. Moulded pulp egg cartons. DIAMOND NATIONAL CORPORATION. Dec. 29, 1960 [Feb. 3, 1960], No. 44671/60. Class 18. A moulded pulp egg carton 10 comprises a cellular tray 11, a hingedly connected locking flap 30 with locking lugs 34, 35 formed on outwardly extending protrusions 32, 33 spaced between recesses 40, 41, 42 and contacting the planar inner surface of front wall 21 of a hingedly connected cover 20 with the former provided with a pair of apertures 22, 23 to engage the locking lugs. To distribute the feed transmission to the tray, it is provided with an upstanding post 15 and a shelf-like portion 13 on which each of the horizontal portions of recesses 40, 41, 42 rest. In another modification (not shown) the tray portion is different in that the upstanding post is omitted and the cells are different in configuration.
Patent GB-1020969-A (GB)
Title: Improved process for recovering hydroxylammonium salts
IPC: C01B21/093
Filed: 1964-11-05
Abstract: An aqueous reaction mixture produced by the reaction of a primary nitroalkane with 2-10 C atoms, a mineral acid e.g. HCl, H2SO4 or H3PO4 and water, which contains the hydroxyl-ammonium salt of the mineral acid and the alkanoic acid corresponding to the nitroalkane, is maintained above the crystallization temperature of the salt, e.g. 20 DEG -100 DEG  C., and passed through a solvent extraction zone containing a water-insoluble hydrocarbon which will selectively extract the nitroalkane and alkanoic acid while still maintaining the reaction mixture above the crystallization temperature of the salt, the aqueous phase is removed and the hydroxylammonium salt is recovered therefrom.  Solvents useable in the process include hydrocarbons with 3-10 C atoms, e.g. aromatic hydrocarbons, especially monocyclic aromatics such as toluene and benzene; and paraffins, e.g. hexane.  The reaction mixture may be continuously passed through the solvent extraction zone countercurrently, the aqueous phase being evaporated to recover the hydroxylammonium salt and the organic phase fractionally distilled to recover the solvent, alkanoic acid and unreacted nitroalkane.  The reaction mixture may contain 10% each of hydroxylammonium salt and alkanoic acid e.g. propionic acid, in water, to a water content as low as 10%, the solvent being employed in amounts from 0.5-5 parts by weight of solvent to 1 part by weight of the mixture.