baber/WOPTO huggingface dataset:
Patent GB-1100314-A (GB)
Abstract: 1,100,314. Piezoelectric elements. SOC. ALSACIENNE DE CONSTRUCTIONS ATOMIQUES DE TELCOMMUNICATIONS ET D'ELECTRONIQUE "ALCATEL." 16 July, 1965 [17 July, 1964], No. 30331/65. Heading HIE. Ferroelectric elements of large surface area are made by edge-to-edge assemblage of a number of plate-like parts of regular polygonal, e.g. hexagonal, form. The parts are made from an agglomeration of ferroelectrio ceramic material in a thermosetting resin, e.g. an ethoxyline, which may also be used for cementing the parts together. Ferroelectric materials used include lead-zirconate-titanate modified by a minor proportion of strontium, and barium titanate modified by minor proportions of calcium and lead. These are mixed with the resin and parts are moulded from the mixture. After curing and deposition of electrodes, the parts are polarized using 5000 v./mm. at 120‹ C. The assembled elements may be used in pairs, with or without an intervening metallic plate, to form bimorph transducers. Alternatively, a single element and a metallic plate may form a bimorph. Stainless steel or aluminium plates may be used.
Patent GB-1225099-A (GB)
IPC: H01T13/41
Filed: 1970-01-22
Abstract: 1,225,099. Sparking plugs. CHAMPION SPARK PLUG CO. Jan.22, 1970, No.3219/70. Heading F1B. [Also in Divisions H1 and H2. A wire wound smoothing resistor R Fig. 3 for fitting inside the insulator 10 Fig.3 of a spark plug is provided at one or both ends with a spring 13, 20, 21 the inner part 13 of which holds and makes electrical connection with the wire whilst the outer part 20, 21 telescopes when compressed in position in the plug to minimize its inductance.
Patent GB-1225561-A (GB)
IPC: B31C3/00
Filed: 1969-01-23
Abstract: 1,225,561. Cardboard tubes. LHOMME S.A. 23 Jan., 1969 [7 Feb., 1968; 25 Oct., 1968], No. 4025/69. Heading F2P. A process for the manufacture of smoothsurfaced cardboard tubes to precise dimensions includes the initial manufacture of a basic tube by helically winding on a mandrel 3 a plurality of strips 4, 5a-5j of fibrous material suitably gummed, and then successively winding on the basic tube a gummed strip 6 of low-density fibrous material and a strip of dense fibrous material 7 which is slightly gummed so as to constitute a rough tube having an external diameter slightly greater than that desired. The rough tube is sanded, at 15, and coated, at 16, with a heat-hardening resin 23 to which a polymerization catalyst, if desired, has been added; the tube then being cut into lengths which are stored to evaporate the solvents at a temperature below the polymerization temperature, each length then being passed through a heated matrix 26 to provide simultaneously, by the polymerization of the resin, its final gauging and surface finish. As shown, the initial strip 4 and ten gummed intermediate strips 5a-5j are wound on to the mandrel 3 by a spiral winder 2, which carries two-spindled reels furnished with gumming devices for the strips 5a-5j, the basic tube so formed then receiving the penultimate feltcard layer 6, which is of regular thickness and the final layer 7 of slightly wider absorbent paper which has a chamfered edge 70. The tube is moved axially by an endless belt 11, the coating device 16 having a roller 21 partly immersed in an aqueous solution of heat hardening phenol resin, to which a polymerization catalyst and preferably a lubricating agent, is added. The tube, which at this stage is from 1-2% over nominal diameter, passes to the cutting machine and then to the stove. The dried tube lengths are then fed to the surfacing matrix 26, Fig. 4, where an hydraulic jack 25 successively pushes the tube sections through an accurately sized bore 26a which has a chrome surface and which is surrounded by a heated fluid 33. In a modification both edges of the strip 7 are chamfered.
Patent GB-1226760-A (GB)
IPC: D02G1/18
Filed: 1967-09-13
Abstract: 1,226,760. Yarns; knitted fabrics. IMPERIAL CHEMICAL INDUSTRIES Ltd. 4 Sept., 1968 [13 Sept., 1967; 12 July, 1968], Nos. 41795/67 and 33366/68. Headings D1K and D1W. A woven or knitted fabric is constructed of yarns at least some of which contain or consist of melt coloured polyester staple fibres and at least some of which contain or consist of polyester staple fibres of at least 25% shrinkage. The melt coloured polyester fibres and the shrinkable fibres may be present in the same yarn. In an alternative embodiment, the shrinkable fibres are the melt coloured polyester fibres. A process for producing a woven or knitted fabric having a coloured pattern comprises weaving or knitting a fabric from yarns containing melt coloured polyester staple fibres of at least 25% shrinkage blended with uncoloured or white polyester staple fibres and/or wool or cellulosic fibres, and from yarns containing low shrinkage melt coloured or dyed polyester staple fibres.
Patent GB-1226780-A (GB)
IPC: B24B37/08
Filed: 1968-07-30
Abstract: 1,226,780. Lapping. MONTECATINI EDISON S.p.A. 30 July, 1968 [2 Aug., 1967], No. 36251/68. Heading B3D.  A machine for lapping elements of crystalline structured brittle material, such as semiconductors, quartz and the like comprises planetary gears 5 which are disposed between annular lapping plates 1, 2, have means 8 for receiving the elements, and are engaged by an outer stationary gear 3 and an inner rotatable gear 4. The gears 3, 4 are in the form of chains or rollers and the chain 3 is carried by a casing 13 in which is a motor 9 driving through a gear unit 10, a hollow shaft 11 coupled to a disc 12 secured to the chain 4 which imparts rotation to the planetary gears 5. The gears 5 have apertures 8 for receiving the elements and are disposed between the upper and lower lapping plates of cast iron. The lower plate 2 is carried by supports 18 from a worm nut 15 rotatable by a crank 17 to adjust the height of the plate. The upper plate 1 is carried by arms 23 on a cylinder 20 slidable on a hollow support 19, oil pressure supplied to the cylinder controlling the pressure applied by the upper plate to the elements. An annular reservoir 24 containing an abrasive suspension is rotated by a motor 25. Stationary agitators extend into the reservoir which is connected by an adjustable valve 30 to a pipe which delivers the suspension to a groove 32 in the upper plate, the groove being connected by ducts to the space between the plates 1, 2. The thickness of the elements being lapped is indicated on a mechanical, pneumatic or electronic indicator having arms which measure the relative positions of the upper and lower plates. The elements may be positioned in and removed from the recesses 8 in the planetary gears 5 by a vacuum workholding device which is connected to a vacuum pump and operated by manually opening and closing a suction inlet. The annular lapping plates may be trued by turning on a lathe or by replacing the planetary gears 5 with gears loosely containing abrasive rings. A known machine is described in which the planetary gears are disposed between an outer and an inner gear rotating at different angular velocities and the annular plates may be rotated.
Patent GB-1227846-A (GB)
IPC: C01B17/76
Filed: 1968-04-03
Abstract: 1,227,846. Removal of sulphur oxides from flue gases. PENNSYLVANIA ELECTRIC CO.  3  April, 1968 [5 April, 1967], No. 16131/68. Heading CIA. A substantially solids free flue gas at a temperature of less than 500‹ F. is heated to 750- 1000‹ F., and passed over a catalyst to convert sulphur dioxide to sulphur trioxide; the resultant hot sulphur trioxide containing gas is employed to supply at least in part the heat required to heat the flue gas from its initial temperature to 750-1000‹ F., and is then further cooled to precipitate sulphuric acid, formed by reaction between the sulphur trioxide and water vapour present. The catalyst employed is preferably one containing vanadium pentoxide. The flue gas, after heat exchange with the hot sulphur trioxide containing gas, may be further heated by electrical means or by mixing with hot gases produced by the combustion of substantially ash-free oil. Alternatively ash containing heavy oil or coal may be used, when the further step of removing the ash from the resultant mixture is required. The sulphur trioxide gas may be heated before heat exchange with the initial flue gas. Various embodiments of the process and suitable apparatus layouts are illustrated in the Figures (not shown). The sulphur trioxide gas generally leaves the catalytic reactor at 840-975‹ F. and is cooled by heat exchange with the initial flue gas to from below 500‹ F., e.g. 350‹ to 600‹ F. The sulphur trioxide gas is then further cooled to below 350‹ F., e.g. 225 to 325‹ F., to precipitate sulphuric acid which is collected in a mist collector. The resulting gas may be further cooled by heat exchange with water. Water heated at various stages in the process during heat exchange with the gases may be used as boiler feed water. The initial flue gas preferably contains 0À075 to 0À475% of sulphur dioxide by volume.
Patent GB-1228179-A (GB)
IPC: C22C38/22
Filed: 1968-08-01
Abstract: 1,228,179. Moulds. CENTRE DE RECHERCHES DE PONT-A-MOUSSON. 1 Aug., 1968 [8 Aug., 1967], No. 36719/68. Heading B3F. [Also in Division C7]  A mould for casting liquid metal is made from a steel comprising the balance being Fe and has, throughout the thickness thereof, a uniform structure with 60-90% of the carbon being fixed in the form of carbides, the rest being combined in the form of Cr and Mn saturated cementite. The mould is preferably formed by centrifugal casting, followed by air hardening at 900-950‹ C. and tempering at around 640‹ C. An alternative heat treatment comprises water or oil quenching and then tempering at 660-680‹ C. The moulds are suitable for casting melts of Fe, Al, Cu or Cu alloys melting below 1300‹ C. and are cooled by water-spraying.
Patent GB-1230740-A (GB)
IPC: A61K31/155
Filed: 1968-10-01
Abstract: 1,230,740. Fluorophenylbenz-1,3-oxazine derivatives. MERCK & CO. Inc. 1 Oct., 1968, No. 36308/70. Divided out of 1,229,669. Heading C2C. Novel compounds of formula wherein Q is a radical of formula wherein the N atom is attached to the carbonyl group, R is alkyl, haloalkyl or phenyl optionally substituted by halo C 1-5  alkyl or C 1-5  alkoxy and R 1  is phenyl optionally substituted by halogen, C 1-5  alkyl or C 1-5  alkoxy are prepared by condensation of an aldehyde of formula RCHO with 2 - hydroxy - 5 - (41 - fluorophenyl) benzamide and ring closure of a 2-(R 1 -carbonyloxy)-5-(4<SP>1</SP>- fluorophenyl) benzamide respectively. 2 - Benzoyloxy - 5 - (4<SP>1</SP> - fluorophenyl) - benzamide is prepared by reaction of benzoyl chloride and 5-(4<SP>1</SP>-fluorophenyl) salicyl amide. Starting materials are prepared as in the parent Specification. Pharmaceutical compositions in conventional forms for oral administration and having antiinflammatory, anti-pyretic and analgesic activity and effective in prevention and inhibition of oedema and granuloma tissue formation comprise an above novel compound and an inert diluent carrier or coating.
Patent GB-1231352-A (GB)
IPC: B65B25/16
Filed: 1969-05-12
Abstract: 1,231,352. Shrink-packaging. W. R. GRACE & CO. 21 April, 1970 [12 May, 1969], No. 24193/69. Heading B8C. A method of wrapping an irregularly-shaped article such as a round-ended loaf comprises providing an encompassing package of heatshrinkable film material about the article and using heat-shrinking plates 5, 6 which are shaped to conform with the article to be shrinktidied. As shown, a tube of perforated polypropylene film 1, 2 is formed around a roundended loaf and its flat ends are folded up by guiding slots (13), Fig. 6, not shown, as the loaf passes between plates 11, 11 on a baseplate 15 which seals a seam on the underside of the loaf. With the ends of the tube folded up, as indicated in Fig. 3, the loaf is moved by a conveyer belt 16, between a pair of vertical, horizontally-moving glass cloth belts 17, 17<SP>1</SP> which are backed respectively by heating elements 22, 22<SP>1</SP>; 23, 23<SP>1</SP> and cooling elements 24, 24<SP>1</SP> to effect a heat-sealing of the folded up ends of the tube and a subsequent cooling. In order to tighten the loose sealed ends of the package the plates 5, 6 having respective arcuate heating faces 9, 10 are advanced over the ends of the loaf. The arcuate faces 9, 10 are coated with a polytetrafluoroethylene release agent. The loaf may be initially wrapped by moving it axially into an open-ended tube of film material, or by pulling a length of film material over a guide, clamping the free end of the material, placing a loaf in the film and moving it past the clamped end so that the latter comes into contact with the part of the web remote therefrom and forms a tubular passage, and severing the web adjacent a subsequently formed seal. To ensure that the light polypropylene film is passed across the various guide surfaces of the apparatus, curtains, or jets, of air may be directed over the surfaces.
Patent GB-1232705-A (GB)
IPC: F27D3/18
Filed: 1968-04-17
Abstract: 1,232,705. Bloodcell analysis. COULTER ELECTRONICS Ltd. April 17, 1968 [April 17, 1967), No.10972/70. Divided out of 1,232,701, Heading G1N. GENERAL The invention relates to the automatic analysis of blood samples to determine 7 parameters by measurement and computation:- Red blood cell count (RBC) white " " " (WBC) hematocrit (HCT) hemoglobin (HGB) mean corpuscular volume (MCV) " " hemoglobin (MCH) " " concentration (MCHC) The RBC and WBC are determined by multiple aperture coulter type apparatus (such as that disclosed in Specification 1, 166, 287) and sizing information is taken directly from the RBC amplifiers to determine MCV as described in Specification 1,145,781; HGB is measured photoelectrically as described in Specification 1,232,702. The remainder are derived by servo type analogue computers: - HCT = RBC .x. MCV MCHC = HCT./.HGB MCH = MCV .x. MHCH SAMPLE PREPARATION is described in detail in the parent Specification 1, 232, 701 wherein predetermined quantities of blood and diluent are delivered by a PRINCIPAL CONTROL VALVE to the RED and WHITE aperture baths, the white sample being lysed to break down red corpuscles Fig.1 (not shown). MEASUREMENT CIRCUITS for both the red and white counts to average readings and detect blocked apertures are both substantially as described in Specification 1,160,130 and illustrated in Fig. 2a (not shown). The white circuit at the top of Fig. 2a (not shown) is provided with a scale-selectorswitch to alter the integrator range and allow for the large variation in WBC. These signals viz RBC, WBC together with the MCV and HGB are fed to two servo computers to derive HCT, MCHC, and MCH in a manner substantially self evident from Fig.2b (not shown).
Patent GB-1234430-A (GB)
IPC: H04N5/232
Filed: 1968-12-23
Abstract: 1,234,430. Multiplex television camera control. COMPAGNIE FRANCAISE THOMSON HOUSTON-HOTCHKISS BRANDT. 23 Dec., 1968 [27 Dec., 1967], No. 61176/68. Heading H4R. A television camera is connected to a control unit by a single coaxial cable over which the video signal from the camera, control signals to the camera, and speech signals are transmitted in multiplex. The various control signals are time division multiplexed width modulated pulses which modulate a carrier transmitted in frequency multiplex with the video signal and an intercom. signal, with power supplied over the same cable at D.C. to a D.C. to D.C. converter at the camera. As described video signals from the camera are transmitted in their normal frequency band, e.g. 50 Hz to 6 MHz, while intercom. signals from the camera to control unit are modulated on a carirer of 30 MHz. The camera control signals from the control unit and a voice signal from the control unit to the camera comprise 10 channels of relatively slowly varying signals which are each sampled at 12.5 kHz and transmitted as a 125 kHz t.d.m. pulse signal modulating a carirer of 20 MHz. One channel of the t.d.m. signal is arranged to carry a frame synchronizing signal by a width modulation of channel pulse during a frame synchronizing signal, and another channel carries an over-modulated amplitude as a mutliplexing synchronizing signal. Line frequency pulses are transmitted from the camera, mixed with the video signal therefrom, and a line frequency control signal is transmitted from the control unit, over one t.d.m. channel, after comparison therein of the camera line frequency with the standard line frequency of the system. The system may be applied to colour television where the various colour component signals are transmitted in frequency multiplex, the cable may be double screened or two cables may be used, one to provide an earth reference to eliminate parasitic disturbances on the cable. An L.C. circuit is used to separate the video and D.C. power signals at each end of the cable, the circuit being arranged to correctly terminate the cable, and the video signal is given a low frequency pre-emphasis at the camera to compensate the frequency characteristic of the separating circuit.
Patent GB-1238409-A (GB)
IPC: B21F3/04
Filed: 1969-07-10
Abstract: 1,238,409. Making springs; coiling helices. MOOG INDUSTRIES Inc. 10 July, 1969, No. 34816/69. Headings B3A and B3E. [Also in Division G3] A machine for forming a coil spring comprises a cylindrical mandrel 11 means for rotating the mandrel, a guide 22 for directing the rod stock to the mandrel, means for moving the guide along the mandrel and means for changing the rate of travel of the guide at preselected points in its path along the mandrel. The spring winding machine comprises a bed 1 supporting an overhead member 4 mounted on brackets 5 and 6. A tail-stock carrying the mandrel 11 is slidable along the member 4 by means of a fluid pressure motor and the inner end of the tailstock is supported in a chuck 12 rotatable by a gear train within a gear-box 14 driven by a motor 15. Between parallel guide rods mounted in plates 16 and 17 is a lead screw 20 carrying the bar guide 22 having a pair of parallel guide fingers through which the bar stock is fed on to the mandrel. The speed of rotation of the lead screw is controlled by a servo amplifier 34 which actuates a servomotor 30. The mandrel is connected to a sensing transducer or photoelectric encoder 40 which emits electric pulses responsive to the angular displacement of the mandrel for reception by an electronic pulse counter 36 in a console assembly C (Fig. 2). The command voltage circuit 37 which is preadjust. able is connected to the counter 36 and incorporates a number of adjustable voltages obtained by potentiometers which are preset to provide an output which is fed to the servo amplifier 34. The counter is synchronized with the drive system for the mandrel to start the formation of a spring, release the finished spring and reset for the next cycle. The mandrel rotates at a constant speed while the lead screw rotates at a selected rate thus varying the linear velocity of the bar guide which controls the number of coils formed and consequently the pitch. Thus variable pitch coil springs may be produced.
Patent GB-1239214-A (GB)
IPC: H01M8/04
Filed: 1967-07-12
Abstract: 1,239,214. Automatic control of current and voltage. ENERGY CONVERSION Ltd. July 5, 1968 [July 12, 1967], No.32023/67. Heading G3R. A load unit for testing a power source such as a fuel cell or photo-voltaic generator which may have a low voltage and a high internal resistance and which may be difficult to test-load with the usual simple rheostat is arranged so that the source may be tested either under constant load or constant voltage conditions as desired. As shown, the load unit comprises a mode selector switch S to which is applied a voltage-representative signal, derived from the terminals of the source under test, and a current-representative signal derived from a resistor R which is connected in series with a transistor across the source terminals; the appropriate signal, current or voltage as desired, is compared with a reference voltage and the resultant error signal is applied over an amplifier A to control the transistor so that the collector current is increased or decreased as necessary to maintain constant power source potential or current as selected. For high-current applications two or more parallel-connected transistors may replace the single transistor.
Patent GB-1239626-A (GB)
IPC: B65D65/40
Filed: 1968-07-09
Abstract: 1,239,626. Coated packaging material. KRAFTCO CORP. 9 July, 1968 [10 July, 1967], No. 32741/68. Heading B2E. Surfaces of food-packaging materials are treated to provide a release coating thereon by applying a coating of a hydrated hydrocolloid in amount 0.5-5.0 pounds on a dry basis per ream of packaging material. (A "ream" is defined as an area of 3000 square feet). Examples of suitable release agents are corn starch, wheat flour, Guar gum, carrageenan, carboxymethyl cellulose and combinations thereof. The hydrocolloid may first be mixed with cold water to form a paste or suspension and the suspension then heated to promote hydration of the hydrocolloid. The suspension is maintained at elevated temperature under stirring conditions until the hydration is completed and a colloidal solution of gel is formed. The hydrocolloid gel is then applied to the packaging materials by, say, gravure cylinders and knife combination to apply a thin film layer of the hydrocolloid to a continuous web of packaging material. Certain readily hydrated hydrocolloid material such as pre-gelatinized starch, dextrin, and non-ionic water-soluble cellulose ethers may be applied to the surface of the packaging material in a substantially dry condition, the hydrocolloid materials being hydrated in situ by absorption of moisture from the packaged product to form a thin film. Application of these readily hydrated hydrocolloid materials may be by dusting, or in the form of a slurry in an inert organic carrier such as isopropanol or ethanol. The packaging material is suitable for wrapping processed cheese, cream cheese, margarine, caramels or toffee. The packaging material may be a cellulose nitrate/aluminium foil/wax-resin blend lamination.