baber/WOPTO huggingface dataset:
Patent GB-1080863-A (GB)
Title: Chemically reacting gases with liquids
Inventor: LEYLAND JOHN
IPC: B01J19/18
Filed: 1963-02-22
Abstract: <PICT:1080863/C2/1> A gas/liquid reaction is performed by feeding the liquid reactant on to one surface of a rapidly rotating disc of a heat-conductive material so that it is spread across the surface of the disc in a fast-moving thin film by centrifugal force, exposing the liquid film to the gaseous reactant and removing the exothermic heat of reaction from, or supplying the endothermic heat of reaction to, the liquid film through the disc of heat-conductive material. To sulphonate a hydrocarbon, an alkylaryl hydrocarbon is fed through stationary pipe 9 on to disc 1 while a mixture of SO3 and air is fed in through pipe 10.  The hydrocarbon is sulphonated as it spreads across the disc as a turbulent film and the reaction product is removed from the periphery of casing 2 by pipe 19 and out through pipe 12.  Casing 2 is rotated about pipe 12 on bearings 4 and 5 whilst seal 7 cuts out leakage from the apparatus.  Fluid for heating or cooling (cool water in the case of sulphonating a hydrocarbon) the disc 1 is supplied through pipe 27 and removed from trough 21 by pipe 28.  The disc 1 may be constructed of steel, Al, Cu, Ag and alloys thereof, whilst the surface of the disc may be ridged, dimpled or roughened to increase film turbulence.  In a modification, the gas may be fed into the apparatus between the rotating disc and a stationary disc parallel (30) thereto, whilst a separate gas outlet may also be provided in the stationary shaft.  An alternative method of removing the reaction product is to provide channels in the stationary disc leading from the rim to the stationary shaft along which the reaction product is withdrawn.  The casing may be in two halves and clamped on either side of the disc.  The gas may be fed in at super or sub-atmospheric pressure while the gaseous and the liquid reactants may be mixed before introduction on to the face of the disc.  Two or more units may be provided with fresh gaseous reactant for each unit, or the gas may pass co-or counter-current through the units with respect to the liquid which may be heated to different temperatures in each unit.  Where the gas is a condensible vapour, it may be fed admixed, with the liquid or separately so that the heat of vaporization of the condensed vapour has an additional cooling effect.  Alternatively, the condensed vapour may be used as the cooling medium on the opposite side of the rotating disc.  Other applications of this technique are to sulphonating aromatic and aliphatic-aromatic hydrocarbons, sulphating fatty alcohols or ethylene oxide condensates with alkyl phenols, production of amides from ammonia and fatty acids.
Patent GB-1370943-A (GB)
Title: Tatient monitoring systems
IPC: A61B5/02
Filed: 1971-03-18
Abstract: 1370943 Electro-medical apparatus NATIONAL RESEARCH DEVELOPMENT CORP 15 March 1972 [18 March 1971] 7202/71 Heading GIN In a patient monitoring system utilizing the trend of parameter valves representing a patients condition at least two integrating means are provided to produce respective time-loaded integrated signals in response to transducer signals representing respectively different patient parameters, and these signals are compared with respective reference level signals to produce respective digital signals indicating whether the integrated signals are above or below the associated reference level signals, at least one predetermined combination of digital signals operating a warning or alarm indicator via logic circuitry. As shown, four transducers 1a-1d provide signals representing mean arterial blood pressure, pulse rate, mean central venous blood pressure, and temperature (body core temperature, skin temperature or the difference between these), these signals being applied to respective integrator/comparators 2a-2d, and to comparators 3a-3d. The digital output signals of all comparators are applied to logic circuitry 4 which operates a warning or alarm indicator 5, 6. The outputs of comparators 3a-3d are also applied to logic circuitry 8 which operates a fault indicator 9. When a fault occurs, an output from indicator 9 holds all the integrators. Preferably each comparator contains a high comparator and a low comparator provided with respective high and low reference level signals, Fig. 2 (not shown). Further each integrating means comprises a short-time interval and a long-time interval integrator, the outputs of these two integrators being compared with associated reference level signals and also being applied to difference amplifiers whose output is also compared with associated reference level signals, Fig. 3 (not shown).  Each comparator may be provided also with an up-dated reference derived from integrating over a long period the associated transducer signal and comparing the integrated signal with fixed references, Fig. 6 (not shown). As examples, a warning state is denoted by the combination of a trend to a low level over a long term for mean arterial blood pressure with a trend to high level over a long term for pulse rate. An alarm state is denoted by a combination of a trend to a high level, negative long term/short term difference signal for mean arterial blood pressure with a trend to a high long term/short term difference signal, whether positive or negative, for pulse rate.
Patent GB-538003-A (GB)
Title: Improvements in or relating to cartons
IPC: B65D5/50
Filed: 1940-04-22
Abstract: 538,003. Cartons for electric lamps. COLLIS, F. G., and YOUNG, A. C. April 22, 1940, No. 7248. [Class 18] A carton for electric lamps, valves &c. comprises a cardboard container 11 closed at the bottom and connected by springs 12 to the walls of an outer container, the upper set tending to keep the mouth of the inner container open. The ends of container 11 are positioned in apertures 10 in platforms 6. The mouth of container 11 may be secured by a filament.
Patent GB-808921-A (GB)
Title: Improvements in or relating to frequency discriminators
Inventor: BICKERS ARTHUR
IPC: H03D3/16
Filed: 1956-03-08
Abstract: 808,921. Frequency discriminators. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. Nov. 7, 1956 [March 8, 1956],' No. 7300/56. Class 40 (5). A frequency discriminator of the Foster- Seeley type is modified in that a piezo-electric crystal 15 which is series resonant at the mean frequency of the carrier f0 is connected across the secondary circuit 3 which is also resonant at that frequency. The output characteristic of voltage against frequency is as shown in Fig. 10, and the output is fed through a narrow band-pass filter (not shown) with cut-off frequencies at Y1, Y2, the useful part of the characteristic being that between X1 and X2. The arrangement gives increased sensitivity over the conventional type. In modifications, the radio-frequency choke 12 is dispensed with and a single capacitor replaces the capacitors 9, 10, Fig. 12 (not shown), and the capacitor 16 may be dispensed with and an additional winding provided which is inductively coupled to the primary circuit 2 to inject the signal into the mid-point of the tuned circuit 3, Fig. 13 (not shown).
Patent GB-287086-A (GB)
Title: Improvements in or connected with slit blocks for talking motion picture photography
IPC: G11B7/00
Filed: 1928-03-09
Abstract: 287,086. De Forest Phonofilms, Ltd., (Assignees of Halpenny, R.). March 14, 1927, [Convention date]. Optical apparatus.- A slit block for use in the reproduction of talking pictures or sound record films is constructed to provide for clearing the slit of dust &c. and to clean the film by the movement of the film. Fig. 1 shows a block 1 with a light slit or aperture 2 and two or more inclined grooves 7, 8 m its surface against which the film passes. Dust, &c. from the film accumulates in the grooves 7, 8 and is delivered therefrom at the sides of the block by the movement of the film. Similarly, dust, &c. in the aperture 2 is directed by a V-channel 6 in the block to an inclined groove or grooves. The aperture 2 may be fitted with a narrower slit device comprising segments 10, 11, Fig. 2, spaced apart to provide a slit 4 and fitted in a transverse recess 3, Fig. 1, across the aperture 2. A transparent cover 5 overlies the slit 4, and lies just clear of the surface of the block 1.
Patent GB-796863-A (GB)
Title: Improvements in or relating to the preparation of high molecular weight linear polymers of formaldehyde
IPC: C08G2/00
Filed: 1956-03-08
Abstract: Formaldehyde polymers having a number average weight of at least 10,000, and of the general formula A(CH2O)nB, where n is at least 340 and A and B complementary portions of an organic chain transfer agent, AB, which has a degree of polymerization less than 10, and is selected from carboxylic acids having at least 2 carbon atoms, esters having at least 3 carbon atoms, aliphatic, cycloaliphatic, and aromatic alcohols, acid anhydrides, amides, imides, imines, halides, carbonates, silicates, phosphites, phosphates, thiophanes, aralkyl ethers, sulphides, cyclic sulphoxides, nitro compounds having a hydrogen on the carbon atom to the nitro group and sulphur analogs of these compounds are made by polymerizing, e.g. continuously, substantially pure, anhydrous monomeric formaldehyde in the presence of a liquid hydrocarbon medium, a polymerization catalyst and a small amount of one of the above transfer agents. Specified agents are acetic, propionic, and thioacetic acid, ethylacetoacetate, amyl acetate, ethyl benzoate, butanol, cyclohexanol, cyclohexanethiol, benzyl alcohol, acetic anhydride, butyric anhydride, acetamide, propionamide, N-hydroxymethyl-phthalimide, methyl iodide, nonylanisole, cyclohexanimine, tert.-butyl chloride, acetamide, tributyl phosphite, bis(2-methoxyethyl) carbonate, thiophane, ethyl phenyl ether, cetyl ethyl sulphide, tetramethylene sulphoxide, tert.-dodecyl mercaptan, nitromethane, and polyethylene glycols having a degree of polymerization less than 10.  The liquid hydrocarbon medium may be heptane, benzene, toluene, or cyclohexane. Catalysts mentioned are dimethyl di(hydrogenated tallow)-ammonium acetate, tetrabutylammonium laurate, aluminium isopropoxide, and triphenyl phosphine.  The polymers may be spun into fibres or filaments, or formed into films, sheets, tubes, or rods. Specifications 753,299 and 796,862 are referred to.
Patent GB-526069-A (GB)
Title: Improvements in firearm mountings provided on stands or gun-carriages
IPC: F41A27/24
Filed: 1939-03-07
Abstract: 526,069. Gun mountings. DANUVIA IPARI ES KERESKEDELMI R. T. March 7, 1939, No. 7453. Convention date, March 7, 1938. [Class 92 (i)] Relates to mountings in which the gun 9 is supported on a quadrilateral framework having one arm fixed and arranged as a support 1 mounted on a pillar 2 forming part of a tripod or like stand. According to the invention, a lockable and releasable device 13, 14 operating by friction serves to fix two adjacent arms of the framework in the adjusted position of elevation of the gun, the lengths of the arms of the framework remaining constant. The gun may be attached to the upper arm 5 as shown or to the lower arm 7. The locking device may consist of a screw 14 mounted on the arm 8 and carrying spring-loaded friction discs and a clamping nut 15, the screw engaging an arcuate slot in a plate 13 fixed to the arm 7.
Patent GB-1076663-A (GB)
Title: Improvements in or relating to battery cages
Inventor: THOMPSON THOMAS
IPC: A01K31/04
Filed: 1965-02-22
Abstract: 1,076,663. Poultry batteries. SHEPHERD BROS. (BAXENDEN) Ltd. Jan. 25, 1966 [Feb. 22, 1965], No. 7464/65. Heading A1M. The droppings boards 15 of a battery cage system are cleaned by scrapers 23 connected to individual wire loops 24 passing over pulleys 25-27 and looped over a drum 35 mounted for rotation about its axis and also for longitudinal movement along its axis in co-ordination with the rotation. The drum 35 is driven by an electric motor 38 and is integral with axial threaded rods 36 which extend through correspondingly threaded eyes 37 on the battery frame 10 so that axial movement of the drum occurs as it rotates. Alternatively the drum may move by means of a rack and pinion mechanism. Each scraper 23 has a chevron-shaped working surface and a pair of side cleaners and is attached to the wire so that the scraper blade is pressed into contact with the board in one direction of movement and is raised in the opposite direction. Switches 42 are provided for reversing the motor 38. The drum may also drive hoppers 20 delivering feed to troughs 19. Each cage is provided with a nipple drinker 22. The drum 35 may be formed by interlocking segments and may be mounted with its axis horizontal as shown or vertical.
Patent GB-1448220-A (GB)
Title: Rotary soil cultivating implement or harrows
IPC: A01B33/12
Filed: 1973-12-04
Abstract: 1448220 Rotary soil working implements C VAN DER LELY NV 4 Dec 1973 [4 Dec 1972] 07505/76 Divided out of 1448218 Heading AIB The subject-matter of this Specification is identical with that described with reference to Figs. 1-4 of Specificataion 1448218, but the claims are concerned with the construction and positioning of shield plates for the tools.
Patent GB-805461-A (GB)
Title: Improvements relating to coupling networks especially for wideband amplifiers
Inventor: MANSFORD HUGH LYON
IPC: H03F1/20
Filed: 1954-03-17
Abstract: 805,461. Wide-band impedance matching. ELECTRIC & MUSICAL INDUSTRIES Ltd. March 17, 1955 [March 17, 1954]. No. 7702/54. Class 40 (8). [Also in Group XL (c)] A network for coupling impedances of different magnitudes over a wide band of frequencies comprises a transformer 6 and a complementary network R5, R6, C2, C3, Fig. 5, having the same transfer ratio as the transformer. The network may be used to couple the anode line (of characteristic impedance R1) of a first distributed amplifier (not shown) to the grid line of a second distributed amplifier comprising valves V1 to V6. The network presents a constant input impedance equal to R1 when where L1 is the shunt primary inductance of transformer 6, n is the voltage transfer ratio and 1/C1 = 1/C2 + 1/C3. R4 is the characteristic impedance of the grid line. In order that the complementary network may have the same voltage transfer ratio as the transformer the values of the elements are in the ratios Above the crossover frequency given by the relationship #L1 = 1/#C1 power is transferred by the transformer 6 and below this frequency by the complementary network. The load consists of the grid line of the second distributed amplifier comprising distributed inductance 14 and shunt capacitances 15 to 20 terminated by R4 which is made equal to the characteristic impedance of the grid line. One end of R4 is earthed via C3 whose impedance is low compared with the sum of the shunt impedances 15 to 20. Grid bias may be applied to the "earthy " end of R4, a blocking capacitor (not shown) being inserted between R4 and the junction of R5 and R6. Fig. 7 shows how the circuit may be modified when it is desired to replace the transformer 6 by an autotransformer. In a further modification the complementary network is replaced by a further transformer having the same turns ratio n as transformer 6. The primary and secondary windings of the second transformer are shunted by resistances of combined effective values equal to R5 + R6. Specifications 460,562, [Group XL], and 716,442, [Group XL (c)], are referred to.
Patent GB-526193-A (GB)
Title: Improvements in or relating to bicycles fitted with auxiliary engines
IPC: B62M7/12
Filed: 1939-03-09
Abstract: 526,193. Motor-cycles. AUTO UNION AKT.-GES. March 9, 1939, No. 7726. Convention date, March 9, 1938. [Class 79 (iii)] In a bicycle with an auxiliary engine adapted to drive the rear wheel through reduction gearing, the bicycle wheel 32 is secured to a hub 3 rotatable on coned bearing members 20, 21, on the fixed axle spindle 1, the cone member 20 being connected to the pedal drive 22 and loose on the spindle, and the power unit is carried solely by the cone member 21 on the spindle. The engine 2 is carried by a casing 7 divided in the plane E-E and attached to a flange on the hub bearing members 21 which may be fast on the spindle and/or connected to the cycle frame by a torque resisting member. The drive is transmitted through a chain from the crank shaft 4 to a clutch member 11 on a countershaft 12 from which the wheel hub 3 is driven through gears 9a, 15, 16. The hub bearing member 20 is loose on the spindle being attached to a pedal-drive chain wheel 22 and serving to drive the wheel hub 3 through a free wheel clutch (not shown). The magneto 36 is mounted on the outer part of the casing and driven directly by the crank shaft 4. The wheel drum 32 is perforated with fan blades 35 for cooling the engine.
Patent GB-1032992-A (GB)
Title: A process for the production of polyacrylonitrile filaments by wet-spinning
Inventor: CLIMIE IAN ERNEST
IPC: C08F20/44
Filed: 1962-02-28
Abstract: 1,032,992. Wet-spinning polyacrylonitrile. COURTAULDS Ltd. Feb. 27, 1963 [Feb. 28, 1962], No. 7748/62. Addition to 940,020. Heading B5B. A solution of polyacrylonitrile in a mixture of dimethyl formamide and an organic liquid which is a non-solvent for polyacrylonitrile, which solution has been prepared by the process claimed in any claim of the parent Specification, is extruded into a coagulant hydrophobic organic liquid having a specific gravity at the spin-bath temperature greater than 1À1. The coagulant in the spin-bath may be overlaid by an aqueous solution of dimethyl formamide from which liquid may be continuously withdrawn and continuously replaced by water introduced into the spin-bath below the interface between the coagulant and the aqueous layer. The D.M.F. introduced into the spin-bath by the spinning operation is continuously dissolved by the water introduced into the spin-bath and is recovered from the liquid continuously withdrawn from the aqueous layer by distilling of the water from this liquid, as disclosed in Specification 1,032,991. The non-solvent constituent of the spinning solution may have a boiling point less than that of the coagulant to facilitate the removal of the excess of this ingredient from the coagulant by fractional distillation. The coagulant may comprise a halogenated organic compound such as a chlorinated aromatic hydrocarbon or a mixture of carbon tetrachloride and toluene having a specific gravity of 1À15, toluene being also the non- solvent constituent of the spinning solution.
Patent GB-566516-A (GB)
Title: Improvements in mechanism for use in imparting intermittent circular movement to a feed wheel
IPC: F26B25/00
Filed: 1943-05-17
Abstract: 566,516. Variable-speed ratchet gearing. CARR, J. B., and HANDLEY, C. G. May 17, 1943, No. 7785. [Class 80 (ii)] A driving shaft F carries a crank G to the pin g of which is pivoted a rod H the other end of which is pivoted to a cross-head D slidable in a slot e in an adjustable arm E pivoted about the shaft F. The cross-head D has pivotal connection with another cross-head C which comprises a sleeve c in which slides a rod B having at one end a known friction device b adapted to engage, in one direction only, the rim a<1> of a wheel A which is to be intermittently rotated. The arm E can be angularly adjusted to vary the throw of the device b by a handle e<1> the arm being held in its adjusted position by a detent e<2> engaging notches j in a quadrant J.
Patent GB-1385156-A (GB)
Title: Vacuum flask
IPC: A47J41/00
Filed: 1973-02-16
Abstract: 1385156 Vacuum flasks TIGER VACUUM BOTTLE INDUSTRIAL CO Ltd 16 Feb 1973 7789/73 Heading F4U [Also in Division F1] A vacuum flask includes a double-walled bottle 1 having a stopper unit which incorporates a pumping device for pumping the liquid out from the flask. The pumping device comprises a liquid feed pipe 68 enclosing an impeller shaft 63 and impeller 65, a motor 32 for driving the impeller shaft, dry cells (44, Fig. 3) for operating the motor 32, and a switch device which includes a spring-loaded switch button 56. A rubber ring 17 is provided for plugging the stopper unit in the bottle 1. In operation, the impeller forces liquid through an outlet 13 past a baffle disc 66 which prevents high fluid pressure from being applied to a sleeve boss 21 and an impeller shaft elastic coupling 61. An elastic guard ring 75 surrounds the impeller 65. The stopper unit is formed in three sections, a top cover 49; a bottom member 11 having a cover 23 and forming part of the mouth 13; and a cylindrical portion 14 projecting downwardly from the centre portion of the bottom member and connected to the liquid feed pipe 68.
Patent GB-1364922-A (GB)
Title: Materials for immunochemical assaying
IPC: G01N33/74
Filed: 1971-06-04
Abstract: 1364922 Epinephrine and TRH derivatives S J GROSS 4 June 1971 [11 June 1970 16 Nov 1970] 7821/74 Divided out of 1364921 Heading C2C [Also in Divisions A5 C3 and C4] Epinephrine having an amino or p-carboxyphenylhydrazino group attached ortho to one of its phenolic hydroxyl groups is prepared by NaBH 4  reduction of the corresponding pcarboxyphenylazo compound. Thyrotropic releasing hormone having an amino or p-carboxyphenylhydrazino group attached to the 2-position of its imidazole ring is prepared analogously.
Patent GB-825130-A (GB)
Title: Improvements in or relating to two-stroke cycle internal combustion engines
IPC: F02B33/00
Filed: 1956-03-13
Abstract: 825,130. Charge pumps; regulating. BURMEISTER & WAIN'S MASKIN-OG SKIBSBYGGERI A.S. March 13, 1956 [Feb. 21, 1956], No. 7880/56. Classes 7(2) and 7(6) A centrifugal or axial rotary blower 11 driven by an electric motor 15, and feeding a two-stroke engine scavenging-air receiver 2 from the delivery duct 8 of a blower 6 driven by an exhaust-gas turbine 4, is by-passed by a valve 10 when the pressure in the scavenging receiver 2 is less than that in the delivery duct 8, e.g. at sufficiently high engine loads. There may be a cooler 9 in the duct 8, a variable throttling plate or adjustable airguiding means in the blower suction pipe 12 (or a variable throttling member or adjustable diffuser in the blower delivery pipe 13) and there may be by-passes round the turbine 4 and blower 6 operable if they break down and the blower 11 operates alone. At high loads the blower 11 may be stopped. As shown applied to a six-cylinder opposed-piston marine engine 1, two turbo-blowers 4, 6 each operable by the exhausts of three cylinders feed, via pipes 12 having substantially equal flow resistance, one or other or both of two blowers 11 according to the settling of a valve 17. More than two blowers 11 may be used. The valve 10 may be a non-return flap as shown or a valve controlled manually or automatically in dependence on scavenging air or lubricating oil pressure, engine speed, load or temperature or engine fuel supply e.g. by connection to the engine fuel regulating handle. The invention is applicable to transversely-scavenged engines. Specifications 280,964 [Class 7(ii)] and 736,581 are referred to.
Patent GB-422520-A (GB)
Title: Improvements relating to spring upholstery for chairs
IPC: A47C7/32
Filed: 1934-03-13
Abstract: 422,520. Spring upholstery. HELLER, M., 33, Burggasse, Vienna. March 13, 1934, No. 7922. [Class 52 (iv)] A chair has central longitudinally extending plates of elastic material resiliently connected at their longitudinal edges to the seat and back frames respectively and free to oscillate in the direction of their length. The plate h in the seat back is preferably spaced in front of the back frame for the whole of its length or its lower end may be so spaced and its upper end supported in the plane of the frame.
Patent GB-557634-A (GB)
Title: Improvements relating to the production of alkali metal chlorites
IPC: C01B11/10
Filed: 1942-06-11
Abstract: 557,634. Alkali metal chlorites, MATHIESON ALKALI WORKS. June 11, 1942, No. 8010; Convention date, June 13, 1941. [Class 1 (iii)] Alkali metal chlorites are produced by absorbing chlorine dioxide in an aqueous solution containing hydrogen peroxide and alkali metal bicarbonate.