baber/WOPTO huggingface dataset:
Patent GB-1417560-A (GB)
Title: Automatic chemical analysis
IPC: G01N35/00
Filed: 1972-11-13
Abstract: 1417560 Automatic analysis; batch-type alternating flow-path analyzer MERESTECHNIKAI KOZPONTI KUTATO LABORATORIUM 13 Nov 1972 [21 June 1972] 52240/72 Heading G1B A sample to be tested is taken from storage tank 1 and passed to a dosing bottle 3 and simultaneously the dosing bottle 6 is charged with appropriate reagent. If necessary a second and a third reagent can be passed to further dosing bottles 9, 16. At an appropriate time interval the sample and reagent(s) are fed to the reactor 13. After stirring the reaction mixture is fed to the photo-electric detector 19. At an appropriate staggered point in time the process is repeated with a sample dosing bottle 29 and the appropriate number of reagents and reactor 21. In use the reactions overlap in such a way that the measurements alternate. Between the filling up of detector 19 it is rinsed by sample liquid controlled by lines and valves 23 and 24. Zero point corrections can be performed after washing with chemicals or distilled water from tanks 27 and 25. The components to be analyzed in the sample liquids may be the same but originating from either different sampling points or the same sampling point at different times or the components to be analyzed may be different in different samples originating from either different points or at different times. The apparatus may be used in the automatic analysis of water to determine its silicic acid content, the reagents used comprising molybdate, oxalic acid, methyl amidophenol-bisulphide, and also in the determination of phosphate in water.
Patent GB-523899-A (GB)
Abstract: 523,899. Ignition systems. BRITISH THOMSON-HOUSTON CO., Ltd., and WILKINSON, K. J. R. Jan. 16, 1939, No. 1473. [Class 7 (iv)] High-frequency suppressor resistances 5 of a non-linear type are used, that is, in which the resistance is inversely dependent on the voltage or amperage associated with it. The material referred to in Specification 292,110, [Class 37], may be used. Specification 198,345, [Class 7 (iv)], also is referred to.
Patent GB-1494099-A (GB)
Title: Wireless apparatus for controlling a controllable rectifier and installations comprising such apparatus and rectifiers
IPC: H02M1/096
Filed: 1974-12-05
Abstract: 1494099 Radio control and monitoring SIEMENS AG 5 Dec 1974 [5 Dec 1973 10 June 1974] 52729/74 Heading H4L [Also in Division H2] For use in a system for radio control of a controllable rectifier, such as a thyristor V1 in a HVDC converter, a receiver comprises an antenna B1 coupled via a receiver El to the controllable rectifier V1 and has means U1, O1 for causing an information-containing wireless signal, responsive to the operation of the rectifier V1 to be transmitted from the antenna B I. As described, thyristor V1 in a HVDC converter, a transmitter is frequency modulated at a first frequency and radiates energy from a first antenna A to a second antenna B1 where it is demodulated at El by a circuit responsive to the first modulation frequency so as to produce a signal for triggering the thyristor V1. An operating parameter of the switching device (such as the anode voltage of the thyristor V1) is monitored at U1 and, if within limits, blocks an oscillator O1, which would otherwise vary an impedance I1 in the antenna circuit V1 so as to amplitude modulate energy reflected by antenna B1, which reflected energy is picked up by the first antenna A and fed via a signal routing device Z to a receiver R responsive to the reflected energy. The system may be used to control and monitor 1000 thyristors V1, V2 in a three-phase bridge converter. Signals are sequentially supplied to s1 ... s6 when it is desired to turn on one of six groups of thyristors each signal provides modulation at a respective frequency f1 ... f6 in the range 6À7-11 MHz which frequency modulate a carrier (e.g. 300-2448 MHz) for transmission by a 2 m. parabolic antenna. The receiving antennae B1, B2...are mounted on the high voltage side of the converter some 5 m. distant. The appropriate modulation signals are selected by tuned ratio detectors E1, E2 ... for triggering the appropriate groups of thyristors V1, V2... The anode voltage of each thyristor normally allows a respective oscillator O1, O2 ... to modulate a PIN or capacitance diode I1, 12 so as to amplitude modulate the carriers reflected back from the receiving antennae B1, B2 to provide signals picked up by the first antenna A which are fed to a directional coupler Z. The secondary lines R11, R12 are correctly terminated at W11, W12 and are spaced by #/8, the resulting signal being demodulated by diodes D11, D12 which are tuned to the respective modulation frequencies. The demodulated frequencies are mixed at M11, M12 with sine and cosine components, an oscillator O12 the frequency of which is electronically changed in steps of 10kHz by means of the symbolic switch Q12. It is shown that the resulting signals after filtering at F11, F12 and amplifying at A11 are representative of the anode voltages of the groups of thyristors V1, V2 ... and are fed to respective fault indicator lamps. A common alarm may be included. In Fig. 1 (not shown) the directional coupler Z is replaced by a circulator.
Patent GB-1064399-A (GB)
Title: Welded turbine or compressor rotor
Inventor: MARTIN ANTHONY EUGENE
IPC: F01D5/30
Filed: 1964-12-30
Abstract: 1,064,399. Welding by fusion; making turbines. ROVER CO. Ltd. Dec. 16, 1965 [Dec. 30, 1964], No. 52749/64. Headings B3A and B3R. [Also in Division F1] A blade carrying member or members of a turbine or compressor rotor is welded to the periphery of a disc by opposed electron beams which terminate in a cavity formed by a groove in the disc and/or the member or members. The blades and the blade carrying member are integrally cast. Where one member (2, Fig. 2, not shown) of ring-shape carrying all the blades (3) is cast, the member is shrunk on to a forged disc (1) and is welded by opposed electron beam devices (9, 10). Grooves (8) formed in both the disc (1) and the member (2) separate the welds (4) so formed and enable interpenetration of the welded zones of the two beams to be avoided. The disc and the blade carrying member(s) are of different metals.
Patent GB-1087860-A (GB)
Title: Improvements in or relating to pulse transmission apparatus
Inventor: SIPRESS JACK MYRON
IPC: H04L25/49
Filed: 1964-12-31
Abstract: 1,087,860. Data transmission systems. WESTERN ELECTRIC CO. Inc. Dec. 31, 1964 [Jan. 2, 1964], No. 52962/64. Heading H4P. To ensure that no D.C. level occurs in a transmitted signal successive pairs of input data bits are transformed into corresponding pairs of three-level elements. The transformation of the bit pairs indicated in Fig. 1 takes place according to code set 1 until the algebraic sum of the elements in a pair is + 1, whereafter the transformation is made according to code set 2. When next the sum is -1 the transformation reverts to code set 1. No more than two consecutive zeroes occur in the transmitted threelevel signal. At the receiver the signal is recoded to binary form. If an element pair is received as 0, 0; + 1, + 1; or -1, -1 (i.e. pairs which do not appear in code set 1 or 2) either the transmitted signal has been mutilated or the receiver clock is out of phase. When a certain number of such element pairs has been counted the clock is phase adjusted by one element period.
Patent GB-1412969-A (GB)
Title: Preparations containing silicone rubber
IPC: A61J3/07
Filed: 1972-11-20
Abstract: 1412969 Pharmacologically active LTV silicone rubber compositions and bodies SCHERING AG 20 Nov 1972 [20 Nov 1971] 53513/72 Heading C3T [Also in Division A5] Silicone elastomers of the LTV (low temperature vulcanizing) type, obtained from a mixture of linear organo polysiloxanes, the one containing alkenyl groups especially vinyl groups, and the other containing Si-H linkages, by vulcanization at from 10 to 120 C. preferably 40 to 120 C., in the presence of a noble metal catalyst e.g. platinum or a platinum compound, are used as carriers for pharmacologically active substances having a regular, invariable and long-lasting release of active substance (see Division A5). In the examples shaped bodies of LTV rubber containing 2-50 wt. per cent of drug are prepared; in Example 5, 5 wt. per cent of BaSO 4  is also incorporated; in Example 6 drug/vinylsiloxane and Pt/hydrogen siloxane mixtures are separately prepared before mixing; in Example 8, a drug/lactose/Mg stearate tablet is embedded in the LTV silicone rubber.
Patent GB-1418293-A (GB)
Title: Electro-therapy apparatus
IPC: A61N1/32
Filed: 1972-11-21
Abstract: 1418293 Electrotherapy apparatus H RODLER 21 Nov 1972 [22 Nov 1971] 53709/72 Heading A5R [Also in Division G3] An electrotherapy apparatus has two channels for feeding pulses or alternating current electrical signals to a patient; each channel comprising a level control 5 for influencing signal level in the channel in dependance on a control voltage applied to the level control, a pair of output electrodes 9 or 10, a detector 11, 12 providing a voltage indicative of voltage across or current flow to the electrodes, and a comparator for receiving the voltage from the detector and for providing the control voltage for the level control in dependance on the received voltage and on a reference voltage source 17 common to each channel to maintain a predetermined magnitude of voltage across or current flow to the electrodes. A first channel passes the output fom an oscillator 1 via the level control 5, driver stage 6, output stage 7 and transformer 8 to electrodes 9, a transformer 11 and rectifier 12 providing a voltage at the junction of resistors 14, 16 dependant on current flow to the electrodes, said voltage being in opposition to the voltage from the reference source 17 to give a control voltage to transistor 20, the control voltage increasing with increase in current to electrodes 9, e.g. due to electrode resistance charges, to control the gain of transistor 13 to maintain the output current constant at a given setting of reference voltage, and the constant output current being approximately proportional to the selected reference voltage. The gain of transistor 13 may alternatively be controlled by an FET in series with transistor 13 or by a differential amplifier having one input connected to resistor 16 and the other to resistor 14, Figure 2 (not shown). The control voltage supplied to the level control may also be connected via an excess voltage detector to means indicating when the control voltage exceeds a predetermined level. An identical second channel has a frequency modulated input fed via a filter 4 from a modulator 3 having inputs from oscillator 1 and from a control generator 2.
Patent GB-1482479-A (GB)
Title: Catalyst for hydrogenation of elastomers and the process of hydrogenation
IPC: B01J31/18
Filed: 1974-12-13
Abstract: 1482479 Hydrogenating elastomers FIRESTONE TIRE & RUBBER CO 13 Dec 1974 [13 Dec 1973] 54084/74 Heading C3P [Also in Division C2] Unsaturated elastomers, e.g. polybutadiene, butadiene-styrene copolymer and isoprenestyrene copolymer, are hydrogenated using as hydrogenation catalyst a cobalt (I) complex prepared by reducing with a trialkyl or triaryl aluminium or dialkyl or diaryl aluminium hydride a cobaltous compound which is the reaction product of a cobalt salt and a compound selected from the N-lithium, sodium or potassium salts of (a) lactams having the formula in which n is from 0 to 20, (b) other amides having the formula in which R 1  and R 2  are the same or different and each is hydrogen, an alkyl group containing 1 to 10 carbon atoms, or an aryl group, and (c) ureas having the formula in which R 1 , R 2 , R 3  and R 4  are the same or different and each may be hydrogen, a straight or branched chain saturated or unsaturated aliphatic hydrocarbon radical or cyclic alkyl group of 1 to 21 carbon atoms, or an aryl group.
Patent GB-1210678-A (GB)
Title: Improvements in or relating to hydraulic pumps or motors
Inventor: ORLOFF GEORGE
IPC: F16C21/00
Filed: 1967-11-29
Abstract: 1,210,678. Bearings. MOLINS MACHINE CO. Ltd. 7 Feb., 1969 [29 Nov., 1967], No. 54223/67. Heading F2A. A bearing assembly for an hydraulic pump or motor comprises a rotatable shaft 3 supported by a hydrostatic bearing in a wall member 1, which separates two volumes of unequal fluid pressure, a passage 6, 5 linking bearing recesses 4 to the volume of higher pressure, a further bearing recess 7 linked by a further passage 8 to the other volume, and a device comprising a rolling thrust bearing 9 and seal 12 to restrict flow of fluid from the higher pressure volume directly into the recess 7.
Patent GB-1117200-A (GB)
Title: A process for the manufacture of benzdiaz[1,4]epines
IPC: C07D243/24
Filed: 1966-12-08
Abstract: 2 - Oxo - 2,3 - dihydro - 1H - benzdiaz-[1,4] epines which carry an esterified carboxyl group in the 3-position are prepared by condensing the corresponding 3-unsubstituted compound with a carbonic acid diester.  Many of these compounds are sedatives, tranquillizers, anticonvulsants and muscle relaxants and they may be administered in the form of pharmaceutical preparations containing them, with or without other (unspecified) active ingredients, together with a carrier.
Patent GB-1397858-A (GB)
Title: Methods for brazing a ferro magnetic ceramic member to a metal member
IPC: B23K1/008
Filed: 1973-11-27
Abstract: 1397858 Brazing INTERNATIONAL BUSINESS MACHINES CORP 27 Nov 1973 [11 Dec 1972] 54953/73 Heading B3R In a brazing a ferromagnetic ceramic member to a non-magnetic metal member the members are cleaned where they are to be brazed, a layer of chromium containing metal is sputtered on to the ceramic member at the area thereof to be brazed, the ceramic and non-magnetic metal members are mechanically supported with an interposed foil of silver containing brazing alloy, the assembly is preheated in an inert environment and then the assembly is heated for not more than five minutes in the range of from 600‹ C. to less than 1000‹ C. to melt the brazing material, the chromium containing metal being at least partially soluble in the brazing alloy at the brazing temperature. The members, e.g. of nickel-zinc type ferrite ceramic and titanium or titanium alloy respectively are both chemically cleaned at the joint areas, a layer of chromium containing metal, e.g. 50% nickel 50% chromium; 10% nickel 19% chromium 71% iron (stainless steel) or other stainless steel or nickel and/or iron alloys containing tantalum, molybdenum or tungsten is sputtered on to the ceramic member joint area to a thickness of about 10 microinches, the members are clamped with an interposed foil of 95% silver 5% aluminium; 72% silver 28% copper or 71À5% silver 27À5% copper 1% nickel and preheated at 600‹ C. in vacuo. Then the assembly is heated to 825-840‹ C. to effect brazing. The non-magnetic metal member may be of stainless steel.
Patent GB-1110550-A (GB)
Title: Improvements in mixer blades, scrapers or the like in mixing vessels
IPC: B01F15/00
Filed: 1965-12-28
Abstract: 1,110,550. Mixer blades. H. WAHL [trading as VERSCHLEISS-TECHNIK DR. ING. HANS WAHL]. 28 Dec., 1965 [13 March, 1965], No. 54978/65. Heading B1C. Blades 20 or scrapers in mixing machines are protected from wear by shaping so that those areas adjacent the gap 27 between the blade or scraper and the mixing vessel base 28 or wall are substantially prependicular to the base or wall with the following part of the blade or scraper inclined at an angle #. This causes a stagnant region of flow to be formed ahead of the gap where a protective pile 29 of material collects, the main flow of material being along the lines 30-30. Other embodiments show the blade area adjacent the gap extended forwardly in the direction of movement relative to the remainder of the blade, and the use of baffles 39, (37, 38) to prevent movement of the pile 29.
Patent GB-1171937-A (GB)
Title: Flame Resistant Shaped Articles of Acrylic Polymeric Material
IPC: C08F220/14
Filed: 1966-12-09
Abstract: 1,171,937. Flame-resistant acrylic polymers. ROHM & HAAS CO. 9 Dec., 1966 [17 Jan., 1966], No. 55275/66. Heading C3P. Flame-resistant acrylic polymers are prepared by polymerizing a mixture of methyl methacrylate and cyclohexyl acrylate and/or methacrylate (or a partly polymerized product thereof) together with a flame-resistant polymeric phosphorus compound in such proportions that the polymerization product (including the P polymer) contains at least 50% by weight of polymerized methyl methacrylate units, 5- 30% by weight of polymerized cyclohexyl (meth) acrylate units and 5-25% by weight of the P polymer. In a modification, up to 5% by weight of the methyl methacrylate units can be replaced by units of another acrylic or methacrylic monomer, e.g. ethyl acrylate, methacrylic acid or glycidyl methacrylate. In an alternative embodiment, the P polymer may be added to the preformed polymer. The polymer products can be formed into shaped articles (e.g. sheets) by moulding or extruding. Preferred P polymers for use in the invention are those described in Specification 1,088,743. In examples, the polymerization step is effected in the presence of acetyl peroxide as catalyst, and shaping is effected simultaneously.
Patent GB-1221628-A (GB)
Title: Omnidirectional antenna
IPC: H01Q21/20
Filed: 1969-11-13
Abstract: 1,221,628. Aerials. ROHDE & SCHWARZ. 13 Nov., 1969 [13 Dec., 1968], No. 55494/69. Heading H4A. An omnidirectional aerial system of the kind comprising a number of omnidirectional radiator groups arranged one above the other on a mast, each group being a number of directional radiators arranged in uniform angular distribution around the mast, is characterized in that the groups are mutually angularly displaced in the same direction by an angle A = 360 degrees/NX where N is the number of radiators in a group and X is the number of groups and is equal to or greater than three. A more uniform omnidirectional pattern ensues than with an arrangement of angularly staggered groups as in Specification 727,527.
Patent GB-1435029-A (GB)
Title: Combined drawing and texturing machine
IPC: D02G1/02
Filed: 1973-11-29
Abstract: 1435029 Drawing and texturing yarns, guides ATELIERS ROANNAIS DE CONSTRUCTIONS TEXTILES 29 Nov 1973 [29 Jan 1973] 55505/73 Headings D1D and D1F A method of starting combined drawing and texturing machines for synthetic thermoplastic yarn comprises at least partly stretching the yarn, during the starting operation, on a heating element situated upstream of the setting and texturing assembly and then removing the yarn from this heating element when the starting operation has been terminated. The heating element upstream of the setting and texturing assembly comprises a heating element 3, preferably a metallic cylinder, a curved bar 4 pivoted at one of its ends about an axis parallel to the axis of the element 3, yarn guides 5 and 6 at the ends of the bar, a 'bar 7 fixed at the pivot of the bar 4 and carrying a guide 8 at its free end, and a lever 9 also fixed at the said pivot point and operative to pivot the bar 4 so that it at least partially surrounds the element 3. In use, the yarn 1 to be textured is passed through a tensioner 2 and engaged with the yarn guides 10, 8, 5 and 6. The lever 9 is raised so that the bar 4 pivots and the yarn contacts the beating element 3; the yarn can now be manually stretched and threaded through the yarn feeder 11, which is disengaged the heated twist-setting element 12, preferably an electrically heated tube, through the false twist spindle 13, the yarn feeder 14, which is in a slipping condition, and then preferably through a second heating member and on to a wind-up means. The lever 9 is then depressed to disengage the yarn from the heating element 3 and the yarn feeders 11 and 14 are fully engaged. The yarn feeder 11 may be situated upstream of the heating element 3 or between the heating elements 3 and 12. The drawing and false-twisting may be effected simultaneously or sequentially.
Patent GB-1452137-A (GB)
Title: Correction lenses utilized to form fluorescent screens of colour picture tubes
IPC: H01J9/227
Filed: 1973-12-04
Abstract: 1452137 Colour television tubes HITACHI Ltd 4 Dec 1973 [4 Dec 1972] 56222/73 Heading HID A correction lens for forming a colour tube screen is divided into a plurality of lens segments separated from one another by step-shaped border walls 6, either all, or all but a major one of the segments not being completely bounded by the step-shaped border walls, the peripheral line of the lens being correspondingly step-shaped, the segments each having a curved or plain surface so that the refractive characteristic produces the required correspondence between light and electron paths. The lens reduces shadowing due to the step-shaped border lines. The VII-VII cross-section of Fig.6, (Fig. 8 not shown), indicates a stepless border line 7 across the major segment. Aberrations may be corrected at the sides or corners only, Figs.10 and 16 respectively (not shown). The remaining Figures illustrate further variations.
Patent GB-1237195-A (GB)
Title: Process for the oxidation of hydrocarbons
Inventor: GARDNER CYRIL
IPC: C07C29/50
Filed: 1967-12-12
Abstract: 1,237,195. Oxidation of hydrocarbons. IMPERIAL CHEMICAL INDUSTRIES Ltd. 4 Dec., 1968 [12 Dec., 1967], No. 56500/67. Heading C2C. A process for the manufacture of oxygenated products, e.g. alcohols, ketones, hydroxy-acids and dicarboxylic acids comprises oxidizing a saturated hydrocarbon with a molecular oxygencontaining gas in the presence of compounds of two or more metals from Groups IIB and IVB of the Periodic System, further oxidizing, if desired, with nitric acid to convert the resultant oxygenated products to the corresponding dicarboxylic acid. Boron compounds may also be present. An example describes the oxidation of cyclohexane in the presence of zinc and lead naphthenate to yield a mixture of adipic acid, #-hydroxy caproic acid, cyclohexanol and cyclohexanone, which mixture is further oxidized to adipic acid by treatment with nitric acid. Cyclooctane and cyclododecane are other suitable starting materials.
Patent GB-1161461-A (GB)
Title: Bis-Carboxylic Acid Anhydrides
IPC: C08G59/52
Filed: 1967-12-13
Abstract: 1,161,461. Bis-carboxylic acid anhydrides. J. R. GEIGY A.G. 13 Dec., 1967 [14 Dec., 1966], No. 56707/67. Heading C2C. [Also in Division C3] Novel compounds of the general formula wherein X represents an alkylene radical the chain of which may be interrupted by the hetero atoms oxygen, sulphur or nitrogen and in which any nitrogen may be substituted by carboxyalkyl, carboxylic or heterocyclic groups, or wherein X represents arylene or cycloalkylene, or X represents a radical of the form -A-B-A- wherein A is a cycloalkylene radical which may be substituted by alkoxy, or an arylene radical and B is oxygen, sulphur, sulphonyl, alkylene or carbonyl are prepared by reaction of the corresponding tetracarboxylic acid at temperatures below 150 in the presence of an organic monocarboxylic acid anhydride, preferably the anhydride of a low fatty acid or ketene and optionally in the presence of a tertiary nitrogen base which may be a tertiary heterocyclic nitrogen base. A pentaglycidyl ether is produced as a starting material by adding 2,2,6,6-tetramethylol cyclohexanol to epichlorohydrin in the presence of BF 3  etherate. The addition product is condensed with sodium hydroxide in an organic solvent to form the corresponding 1,2,2,6,6-penta-2,3-epoxy-propyl ether.
Patent GB-1373110-A (GB)
Title: Fluid impurity analyzer
IPC: G01N27/00
Filed: 1971-12-07
Abstract: 1373110 Measuring organic pollution EXXON RESEARCH & ENG CO 7 Dec 1971 [4 Jan 1971] 56762/71 Heading G1N The organic impurity content, e.g. oil, of a fluid sample is determined by mixing the fluid with an organic solvent, e.g. methylene chloride, and placing a quantity on a crystal in an oscillator. The change in frequency after the solvent has vaporized is a measure of the mass impurity content, and is determined by comparison with a similar crystal doped with the solvent only.