baber/WOPTO huggingface dataset:
Patent GB-363448-A (GB)
Title: Improvements in or relating to the sizing of artificial silk and other textile threads
IPC: D06M15/17
Filed: 1930-10-15
Abstract: Artificial silk and other textile threads are sized with resinates of aminoalcohols in aqueous emulsions or in solution in a volatile solvent.  The sizes may also contain oleic or stearic acid, glycerine, gums or waxes.  In an example, a size is prepared from colophony, oleic acid, stearine, and commercial triethanolamine. Cloths made from artificial silks treated with such sizes are readily desized by immersion in a warm soap solution.ALSO:Sizes for artificial silk and other textile threads comprise resinates of aminoalcohols in aqueous emulsion or in solution in a volatile solvent.  The sizes may also contain oleic or stearic acid, glycerine, gums, or waxes.  In an example a size is prepared from colophony, oleic acid, stearine, and commercial triethanolamine.
Patent GB-246976-A (GB)
Title: Improvements in or relating to the refining of sugar
IPC: C13B30/08
Filed: 1924-12-23
Abstract: 246,976. Mathys, A. W., (Kessler, F.). Dec. 23, 1924. Refining sugar.-White or refined sugar is produced from raw sugar by subjecting the raw sugar to a sudden change of temperature, for example by the sudden introduction of superheated steam in large volumes, so that the sugar crystals are cracked or broken into fragments while conserving their crystalline structure, the crystals being then treated with a pure sugar solution or a sugar solution containing refining agents such as hydrogen peroxide or sodium hydrosulphite. A concentrated transparent sugar solution is used, and may be obtained by adding water to the crystals to dissolve sufficient to form the required solution, or it may consist of purified syrup from a previous refinement. The crystals may be treated with the solution on the counter-current principle, or by dialysis, diffusion, osmosis, or other method. By this treatment the impure mother liquor in the crystals is removed, or is refined by the refining agents. Where steam is employed for the cracking &c., the refining agent may first be added to the crystals, and will during the steam treatment be dissolved together with sufficient of the crystal mass to form the required solution. The mass obtained may be centrifuged to separate the syrup which contains the refining agents, and then dried to give a granulated sugar which may be pressed into cakes or strips, or solid slabs may be produced by thorough spinning and drying in the centrifugal machine. The slabs may then be broken or cut up in the usual way. The syrup separated may be employed in treating the next batch of sugar. Alternatively the mixture of crystals and syrup may be treated in crystallizers so as to increase the size of the crystals or partially to reunite the crystal fragments. Where high grade refined sugar is desired, the crystals may be treated several times in crystallizers, a purer syrup being employed each time and different refining and decolorizing agents may be used. Where a battery of crystallizers arranged for continuous working is used for this treatment, the sugar syrups employed may be used repeatedly.
Patent GB-901187-A (GB)
Title: Process of production of organic compounds having as basic substituent a heterocyclic ring containing at least one nitrogen atom
IPC: C07D295/104
Filed: 1958-09-26
Abstract: Organic compounds having as basic substituent a heterocyclic ring containing at least one nitrogen atom (e.g. a piperidine, pyrrolidine, piperazine, morpholine or oxazolidine ring) are prepared by hydrogenating nitriles in the presence of organic compounds containing a halogen atom attached to each terminal carbon atom and in the presence of a basic condensing agent and a hydrogenation catalyst.  The process is applicable particularly to the production of 10-[(41-methyl- and 41-hydroxyethyl-piperazinyl-11)-alkyl]-phenthiazines from phenthiazine-10-alkylonitriles and N-methyl- or N - hydroxyethyl - di - (haloalkyl) - amines.  Examples are also given of the preparation of 4-(g -hydroxypropyl)-, 4-(b -phenylethyl)-, 4-dimethylaminoethyl and 4-nonyl-1-methylpiperazine and g -morpholinopropanol.  Acid addition salts of the products are described.  Reference has been directed by the Comptroller to Specifications 716,206, 716,230 and 780,193.
Patent GB-1500292-A (GB)
Title: High voltage dc transmission system
IPC: H02J1/00
Filed: 1975-07-23
Abstract: 1500292 High voltage DC transmission systems BBC BROWN BOVERI & CO Ltd 23 July 1975 [25 July 1974] 30901/75 Heading H2F A high voltage D.C. transmission system comprises a main line 3, 4 fed with high voltage D.C. by rectifier stations 5, 6, and parallel connected inverter stations 7-9, each of which consists of series connected inverters 10-14 having associated alternating current networks 15-19. The rectifier stations include three phase generators, transformers and rectifier bridges, and the A.C. networks 15-19 may be single or polyphase. The inverters, which comprise thyristors, are each provided with a current and voltage regulator or, since the inverters at a station are series connected, one of the inverters is equipped with a current regulator whilst the other inverters each have a voltage regulator.
Patent GB-229791-A (GB)
Title: Improvements in and relating to machines for emulsifying and/or mixing liquid or other material
IPC: B01F15/04
Filed: 1923-12-08
Abstract: 229,791. Sonsthagen, A. Dec. 8, 1923. Moving-chamber apparatus. -In the form shown in Fig. 7 powder is fed into a chamber 40 at the base of which is a reciprocating sliding member 42 having an adjuatable slot 43b therein.
Patent GB-971836-A (GB)
Title: Improvements in or relating to quartz or glass tube electric heating elements
IPC: H05B1/02
Filed: 1962-08-13
Abstract: 971,836. Electric heating elements. A. B. KANTHAL. Aug. 13, 1962 [Aug. 11, 1961], No. 30969/62. Heading H5H. A heating element comprises a quartz or glass tube containing an iron-chromium-aluminium alloy resistance coil whose outer diameter closely corresponds to the tube inner diameter, in which the maximum distance between the centres of adjacent turns is 1.1 times the wire diameter and which has an insulating oxide coating which will withstand potential differences of the order of 0.1 to 2 volts between turns at 1100‹ C. The coil outer diameter is 80-98%, preferably 80-90% of the tube inner diameter. The ratio of the wire diameter to the coil outer diameter is between 1: 4 and 1: 20, preferably between 1: 4 and 1:10. The coil end portions are of greater pitch. The coil may be oxidized in an oxygen containing atmosphere by passing direct current through it or by furnace annealing, preferably at at least 1000‹ C. preferably while stretching the coil 10%. During oxidizing the coil may be stretched, then deposited in fine grained powder or a slurry of an insulating material such as alumina, then released to grip particles between turns to separate them during oxidation. The particles may be removed afterwards. An alloy composition is given for the wire and two examples of elements are given.
Patent GB-279664-A (GB)
Title: Improvements relating to screw propellers or air screws
IPC: B64C11/36
Filed: 1926-12-08
Abstract: 279,664. Ringwood, T. B. Dec. 8, 1926. Screw propellers.-A variable pitch airscrew has its blades rotatably mounted on radial extensions of the boss and weights guided by the extensions engage the blade roots when moved by centrifugal force. A tubular extension c on the boss d is encircled by the root b of a blade a, the blade turning on the balls g without outward movement. A weight l is movable in the extension c and has a pin p which projects through radial slots k and engages inclined slots h in the blade root. Movement of the weight under centrifugal force and the spring u results in a re-setting of the blade pitch. To ensure equal settings of all blades, the pins p are connected by links s to arms on a free sleeve w encircling the boss. A spring in tension or rubber blocks may replace the compression spring.
Patent GB-733207-A (GB)
Title: Improvements in or relating to devices for retarding the movement of wheeled vehicles
Inventor: GROSSMITH GEORGE WILFRED
IPC: B61K7/02
Filed: 1952-12-10
Abstract: 733,207. Railway track braking systems. STRACHAN & HENSHAW, Ltd. Dec. 9, 1953 [Dec. 10, 1952; Nov. 2, 1953], Nos. 31339/52 and 30245/53. Class 103 (1). A railway track braking system for use in shunting yards or for other purposes whole a predetermined degree of braking is required, comprises basically, as shown in Figs. 1 and 3, the provision of rollers 32 and 34 on the ends of an arm 30 disposed in the path of a vehicle wheel, so that a running wheel displaces one roller and then the other, thus causing rotation of a shaft 8 having a friction cone memter 6 urged into contact with a fixed outer cone member 4 by a spring 14, the consequent frictional action causing a retardation of the vehicle. Any number of such brake units may be used and by use of a suitable pawl and ratchet mechanism, they may have only one arm and roller, the arm being returned to position by a spring. In the arrangement shown in Fig. 9, such brake units are disposed between the rails, and can be put out of action by a rod which pivots arms 106, thus through quick-pitch threads 102 causing axial movement of a nut 86 which moves the friction member 6 out of engagement with the member 4. Automatic adjustment mechanism comprising a pawl-andratchet device 90, 92 is provided to take up wear. Fig. 12 shows a form of brake unit in which the friction elements comprise a series of alternate fixed and rotary discs 134-136 and 138-140 applied by a spring 154 and releasable by fluid pressure applied to one side of a plunger 162. As shown in Figs. 14 and 15 the brake units, which in this case do not have rollers, may be arranged in a series on a track arranged to be movable along a track laid in a recess between the main rails 20.
Patent GB-744963-A (GB)
Title: Improvements in heat exchangers
IPC: F28F1/42
Filed: 1953-11-12
Abstract: 744,963. Plate and tubular heat-exchange elements. BUREAU TECHNIQUE J. DENIS, SOC. P.R.L. Nov. 12, 1953 [Nov. 12, 1952], No. 31384/53. Class 64(3). In a heat-exchanger in which two heatexchanging fluid currents are separated by the wall of a heat-transmitting element 2 having secondary heat-exchange elements 3 projecting into the two fluids, a change in direction of one of the fluid currents is assisted by fins, baffles or guides 6 which are spaced and directed along the required line of flow of that fluid. In the form shown in Fig. 1, the element is a tube of elongated cross-section, and is enclosed by a casing 1. The baffles or guides 6 are formed on the outer wall of the tube or on the inner wall of the casing, to direct the flow of fluid outside the tube from the inlet 4 to the outlet 5. The secondary heatexchange surfaces 3 may be omitted from the inner surface of the tube wall in the zone opposite that where the baffles 6 are provided. In modifications, the heat-exchange element comprises two flanged plates. Each plate 10, Fig. 4, may have flanges 11, 11a, 11b, with apertures in the flanges 11, 11b for the flow of one of the fluids. The tube or plate may be made in interchangeable sections.
Patent GB-670149-A (GB)
Title: Improvements in or relating to telemetering systems
IPC: G08C19/12
Filed: 1949-12-07
Abstract: 670,149. Electric indicating systems. LIQUIDOMETER CORPORATION. Dec. 7, 1949. [Dec. 14, 1948] No. 31392/49. Class 40 (i). [Also in Groups XXXVI and XL (c)] The inductance or capacitance in a series resonant circuit is varied by a condition, e.g. a liquid level, and the series resonant frequency is measured to indicate the magnitude of the condition. As shown, Fig. 1, a condenser 2 whose capacitance is varied by the liquid level is series connected with an inductor 12, the series resonant circuit so formed controlling the frequency of an oscillator 16 (see Group XL (c)). The oscillator output is amplified at 56 and applied to a frequency discriminator 60 comprising two tuned circuits 84-88, 86-92 tuned respectively to the highest and lowest possible frequencies of the oscillator. The voltages developed across the condensers 88, 92 of these tuned circuits are rectified by diodes 97, 114 and applied to the respective coils 104, 122 of a resultant field meter 106 which measures the frequency and may be graduated to read liquid level. The oscillator comprises triodes 22, 24 in which positive feedback is effected by the common bias resistor 26 and coupling condenser 32. Negative feedback effected by the condenser 48 precludes oscillation except at the series resonant frequency when the low impedance of the resonant circuit reduces the voltage across resistor 54 to a value insufficient to prevent oscillation. Modified forms of oscillator are described, the liquid level may vary the inductance 12 through a float. the capacitance 2 being fixed in this case.
Patent GB-720248-A (GB)
Title: Photographic method to produce patterns on textiles
IPC: G03C1/76
Filed: 1952-12-12
Abstract: 720,248. Photographic processes. LEVIN - GER, [nee THIELE], M. Dec. 12, 1952 [Dec. 20, 1951], No. 31467/52. Class 98 (2). Patterns are produced on textiles of animal, vegetable or artificial fibre by sensitizing with a solution of silver nitrate and sugar in distilled water, drying, copying through a negative by daylight or electric light, developing in water with added cooking salt, and fixing as in a bath comprising sodium carbonate and potassium metabisulphite. The result may be provided with a reddish tone by subjection to an aqueous bath containing uranyl nitrate, potassium ferricyanide and acetic acid.
Patent GB-282723-A (GB)
Title: Improvements in or relating to the manufacture of thermoplastic materials
IPC: C08L1/08
Filed: 1927-11-23
Abstract: 282,723. British Celanese, Ltd., (Assignees of Dreyfus, C., and Schneider, G.). Dec. 29, 1926, [Convention date]. Compositions containing cellulose esters or ethers.-Moulding powders are made by pulverizing a cellulose ester or ether and mixing it with one or more plastifiers or softeners with or without effect materials such as dyes, pigments, gums, fillers, combustion preventers &c., no volathe solvents being used at any stage. In an example, 80 lbs. of cellulose acetate is ground in a pebble mill until 80 per cent passes an 80-mesh sieve, after which 24 lbs. of triacetin and 4 lbs. of diethyl phthalate are added and the grinding continued for 8 hours. In a further example, 80 lbs. of cellulose butyrate is ground in a similar way with 10 lbs. of triacetin, 10 lbs. of diethyl phthalate and 5 lbs. of tricresyl phosphate. In a third example, 80 lbs. of cellulose ethyl ether is ground until it passes a 100-mesh sieve and the grinding continued with 20 lbs. of dibutyl phthalate. 50 to 100 lbs. of zinc oxide can be ground up with the product of any of the above examples. Specification 249,600 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) describes also a process in which the cellulose compound is rolled on hot rolls with the plastifiers, until the whole goes into solution and the resulting mass is then pulverized. This subject-matter does not appear in the Specification as accepted
Patent GB-666556-A (GB)
Title: Improvements in or relating to bonding sponge rubber to non-rubber articles
Filed: 1947-11-27
Abstract: 666,556. Bonding sponge rubber to fabric. FIRESTONE TIRE & RUBBER CO. Nov. 27, 1947 [July 2, 1947], No. 31488/47. Class 70 [Also in Group VIII] Sponge rubber is bonded to woven fabric especially to the back of a rug by applying a frothed latex mix to a surface of the fabric, allowing the latex to penetrate the interstices and then subjecting the mix and fabric to the influence of high-frequency electrical energy to effect a cure. In a preferred method carpeting 12, F.g. 1, is inserted in an inverted position into mould 10 and then foamed latex 13 which may be prepared according to Specifications 332,525 and 332,526 poured on. The mould is then positioned between electrodes 15 and 16 and the rubber cured. Specification 477,911 also is referred to.
Patent GB-861544-A (GB)
Title: Shoe heel, especially a high heel for ladies' shoes
IPC: A43B21/00
Filed: 1957-10-09
Abstract: 861,544. Heels. PLAST ANSTALT. Oct. 9, 1957 [Oct. 9, 1956; Jan. 10, 1957], No. 31518/57. Class 17(2) A shoe heel is formed by moulding an endless band 3 of glass silk saturated with self setting synthetic resin around a wooden heel blank comprising a main portion 1 having the configuration of the heel at the shoe upper side, and a reduced portion which extends away from the main portion and receives the endless band. In the construction shown in Fig. 4 the reduced portion 2<SP>1</SP> is surrounded by a tightly fitting sleeve 4 which is dowelled into the upper part 1. Ethoxyline resins and epoxy resins may be used as the self setting resin.
Patent GB-1136428-A (GB)
Title: Metal compositions
IPC: C04B41/51
Filed: 1966-07-13
Abstract: 1,136,428. Metal compositions; glass-metal coatings. E. I. DU PONT DE NEMOURS & CO. 13 July, 1966 [29 July, 1965], No. 31524/66. Headings C1J and C1M. A composition for use as a binder in noble metal compositions for preparing fired-on electrical resistor or conductor elements comprises by weight 40-75% Cu 2 O and 60-25% V 2 O 5 . The composition may include a glass powder binding agent, preferably a borate glass, in amount 30-70% by wt. of the total, and is preferably in the form of a powder of particle size not more than 50Á. A noble metal composition may comprise 60-95% by wt. of Ag, Au, Pd, Pt, Rh, Os, Ir, Ru powder, or a compound thereof which is convertible to the noble metal on heating to firing-on temperatures, and 40-5% of the binding composition of the invention. The noble metal composition may be dispersed in an inert organic liquid vehicle. A number of glass compositions are given.
Patent GB-1310965-A (GB)
Title: Superplastic alloys
IPC: C22C20/00
Filed: 1970-06-30
Abstract: 1310965 Treatment of Zn-Al superplastic alloys INTERNATIONAL BUSINESS MACHINES CORP 30 June 1970 [30 June 1969] 31526/70 Heading C7A A superplastic Zn-Al alloy containing a solute addition (e. g. 2-4% Ag or 0À23%Mn) is heated to dissolve the addition, cooled to the superplastic temperature range where it is worked to the desired shape, and then cooled to precipitate the addition. The precipitation may be effected by quenching and then ageing by heating to below the minimum of the superplastic range. The alloy may contain 78%Zn. The product is resistant to creep at ambient temperatures.
Patent GB-189985-A (GB)
Title: Improved apparatus for screening or grading materials
IPC: B07B1/46
Filed: 1921-11-24
Abstract: 189,985. Ractliffe, G. Nov. 24, 1921. Fixed sieves.-A wire screen comprises a number of parallel wires b or the like passing over rollers e which are mounted at either end of the frame a. The rollers are formed with two sets of helical grooves of varying pitch, the grooves on one side of the centre line of the roller being righthanded, those on the other side left-handed. The wires b engage in grooves, and owing to the varying pitch of the helices, simultaneous rotation of the rollers by the hand-wheel g increases or decreases the distance apart of adjacent wires.
Patent GB-736139-A (GB)
Title: Improvements relating to cathode ray tubes
IPC: H01J29/32
Filed: 1953-11-13
Abstract: 736,139. Colour television tubes. GENERAL ELECTRIC CO. Nov. 13, 1953 [Nov. 13, 1952], No. 31554/53. Class 39 (1). A cathode-ray tube screen comprises a number of superimposed layers of phosphor adapted to produce different colours under cathode - ray bombardment, all the layers being optically transparent except possibly the one nearest the cathode-ray source. Transparent layers 2, 3, 4 of zinc or zinc-cadmium sulphides or selenides emit green, blue and red light respectively and may be of the same or different thicknesses between 0.2 and 0.5 micron. Energy-absorbing layers 5, 6 of silica or titanium oxide may be interposed to improve purity of colour response. In an example, red, blue and green responses are obtained at 5, 9 and 15 K.V. respectively. A reflecting conductive film 7 of aluminium silica, or titanium oxide may be provided. The method of operation is as described in Specification 701,853. Specifications 702,575 and 711,015 also are referred to.
Patent GB-411887-A (GB)
Title: Improvements in or relating to the manufacture of filter cloths
IPC: B01D39/08
Filed: 1932-11-09
Abstract: Filter cloth is woven from yarns or threads which have been immersed under pressure in rubber latex and the woven fabric is treated with rubber latex containing vulcanizing agents or with chlorinated derivatives of rubber.  The latex for the treatment of the woven fabric may contain accelerators, preservatives or antioxidants. After treating the fabric the excess material which closes the meshes may be removed by a blast of air.  The fabric may be rendered porous by vulcanizing in the moist state or by adding to the latex material which will emit vapours or gases during vulcanization.  Specification 344,414, [Group IX], is referred to.ALSO:Filter cloth is woven from yarns or threads which have been immersed under pressure in rubber latex and the woven fabric is treated with rubber latex containing vulcanizing agents or with chlorinated derivatives of rubber.  The latex for the treatment of the woven fabric may contain accelerators, preservatives or anti-oxidants.  After treating the fabric the excess material which closes the meshes may be removed by a blast of air. The fabric may be rendered porous by vulcanizing in the moist state or by adding to the latex material which will emit vapours or gases during vulcanization.  Specification 344,414, [Group IX], is referred to.
Patent GB-467151-A (GB)
Title: Improvements in and relating to vibration absorbing mountings
IPC: H02K5/24
Filed: 1936-11-19
Abstract: 467,151. Resilient mountings. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 19, 1936, No. 31714. Convention date, Nov. 21, 1935. [Class 108 (iii)] [Also in Group XXIV] A resilient mounting for a dynamo-electric or other machine subject to torsional oscillation consists of a supporting plate 15 secured to the machine transversely to its axis and held between recessed plates 19 secured to the support 11, resilient members 21 of rubber &c. being interposed between the plate 15 and the plates 19. The members 21 and the recesses in the plates are interrupted to give room for bushings 23 and screws 31 by which the plates 19 are secured to each other and the support 11. The plate 15 is provided with a flange 17 fitting on a portion 18 of the hub 12 of the machine and is secured to the machine by bolts 26 passing through spacing sleeves 29.