baber/WOPTO huggingface dataset:
Patent GB-1018172-A (GB)
Title: Process for the production of pulverulent hydrates of zinc nitrate
IPC: C01G9/00
Filed: 1962-09-25
Abstract: Pulverulent zinc nitrate hydrates are made by reacting pulverized zinc oxide with the stoichiometric amount of 70%-98% by weight nitric acid, intimately mixing and kneading the mixture while maintaining a temperature of at least 2 DEG  C. below and at most 20 DEG  C. below the m.p. of the hydrate to be produced until at least 90% molar of the ZnO has reacted and continuing to mix and knead while cooling to a temperature of from 15 DEG  to 30 DEG  C.  If desired the mass, after at least 90% molar of the ZnO has reacted, may be heated to a temperature not exceeding 80 DEG  C. before cooling.  Additional water to that in the ZnO and HNO3 may be added to the mass in order to correspond to the desired degree of hydration.  The cooling may be effected by water or brine, and the initial reaction temperature regulated by controlling the rate of addition of acid.  If desired, an excess of ZnO over the stoichiometric amount may be employed in order to obtain a product containing free ZnO.  The product may have a mean water content corresponding to from 1 to 4 molecules of water of crystallization.
Patent GB-367932-A (GB)
Title: Improvements in the manufacture and production of lacquers and articles coated therewith
IPC: C09D101/08
Filed: 1930-12-03
Abstract: Non-sticky lacquers suitable for insulating electric cables and for coating insulating fabric or electric pipes made therefrom are obtained by incorporating in organic solvents certain mixed cellulose esters with 100 to 250 per cent of their weight of softening agents, with or without filling or colouring components or both of these. The mixed esters are those containing at least two fatty acid radicles with not more than 6 carbon atoms, or at least one such radicle and one nitro group.  Part of the mixed ester, up to 80 or 90 per cent, may be replaced by nitrocellulose. Esters specified are the acetate butyrate, the acetate propionate, and the nitrate acetate. Softeners specified are the sulphamide or other derivatives of p-toluene sulphonic acid, and the esters of phthalic, phosphoric, or adipic acid with monohydric aliphatic or aliphatic-aromatic alcohols or with phenols, including tricresyl phosphate.  When using phosphoric esters of phenols, the lacquer coating may be rendered incombustible.  In examples, solvent mixtures specified are acetone and benzene, or acetone benzene and methyl acetate.  In one example, a stranded cable having a coating of rubber and cotton is coated with a lacquer containing cellulose butyrate acetate and tricresyl phosphate. Specifications 138,078, 313,973, 322,540, 322,541, 322,542, and 322,543, [all in Class 95, Paints &c.], are referred to.
Patent GB-874085-A (GB)
Title: Flow control systems for turbines
IPC: F01D17/14
Filed: 1957-11-22
Abstract: 874,085. Temperature-responsive acting elements. GARRETT CORPORATION. Nov. 22, 1957 [Nov. 23. 1956], No. 36536/57. Class 64(2) [Also in Group XXVI] The variable area inlet nozzles 31 of a' turbine are actuated by a series of bimetallic elements 6 located in the inlet manifold 5. Each bimetallic element 6 is made from sections of laminated metal strip 6a, 6b with the strip 6a which has the larger coefficient of thermal expansion on the outside of each fold.
Patent GB-1190833-A (GB)
Title: High-Pressure Metal-Vapour Discharge Lamp with One or More Halogen Compounds
IPC: H01J61/18
Filed: 1967-08-09
Abstract: 1,190,833. Metal-vapour lamps. PATENTTREUHAND - GESELLSCHAFT FœR ELEKTRISCHE GLœHLAMPEN m.b.H. 9 Aug., 1967 [9 Aug., 1966], No. 36608/67. Heading H1D. A high pressure metal-vapour discharge lamp has a wall loading of more than 40 watts cm. without artificial coating and a filling which includes a halogen compound, e.g. aluminium chloride or bromide, which is dissociated predominantly into ions at temperatures above 1500‹ K. Other metal halides referred to are those of the second and third periods of Groups II to IV of the Periodic table. The filling also includes 40 torr of argon as a starting gas, and preferably includes mercury. The envelope is of quartz or alumina, the operating pressure is at least 2, and may be more than 5, atmospheres, e.g. 10 atmospheres, and envelope dimensions are given.
Patent GB-1440230-A (GB)
Title: Process for the preparation of lubricating oils
IPC: C10G73/44
Filed: 1973-08-02
Abstract: 1440230 Lubricating oils SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 2 Aug 1973 [4 Aug 1972] 36732/73 Heading C5E A feed composed of a vacuum distillate and/or deasphalted residual mineral oil is catalytically hydrocracked in the presence of hydrogen and a hydrocracking catalyst, the portion of the oil boiling above 350-400‹ C. is dewaxed to produce a high viscosity index lubricating oil and wax, the wax is subjected to catalytic hydroisomerization in the presence of hydrogen and a catalyst comprising (a) boron, (b) an oxidic carrier, (c) Fe, Co and/or Ni, and (d) Cr, Mo and/or W and lubricating oil of high viscosity index is obtained by dewaxing the hydroisomerization product. The hydrocracking can be carried out at 300-550‹ C. and 50-250 bar abs. using a catalyst such as nickel and molybdenum on alumina containing F and P. The hydroisomerization can be carried out at 310-150‹ C. and 50-200 bar; and the wax obtained by dewaxing this effluent can be recycled to the hydrocracking or hydroisomerization step. The wax obtained from the hydrocracked material can be recycled to the hydrocracking reactor together with the mineral oil feed and therein subjected to a combined hydrocracking-hydroisomerization process, or hydroisomerized in a separate reactor either by itself or together with a portion of the mineral oil feed. In examples a propane-deasphalted residual oil is hydrocracked, the effluent fraction boiling above 400‹ C. is dewaxed with a methyl ethyl ketone-toluene mixture to produce oil of V.I. 130 and slack wax which is hydroisomerized with a sulphided catalyst, and the isomerization effluent boiling above 400‹ C. is dewaxed to produce oil of V.I. 158.
Patent GB-1067458-A (GB)
Title: Process for the preparation of fluoro-olefins by pyrolysis
IPC: C07C17/25
Filed: 1963-09-19
Abstract: Fluoro-olefines are prepared by the pyrolytic dehydrohalogenation of a fluorinated or chlorofluorinated hydrocarbon containing at least one hydrogen atom in the molecule in which the pyrolysis is carried out in the presence of ammonia. The liquefied pyrolysis products may be separated by fractional distillation if desired after removal of the ammonium halide formed during the reaction.
Patent GB-333130-A (GB)
Title: Improvements in brushes
IPC: A47L11/164
Filed: 1929-12-04
Abstract: 333,130. Electrolux, Ltd., (Assignees of Inventia Patent-Verwertungs-Ges.). Dec. 4, 1928, [Convention date]. Floors, cleaning. - A brush adapted more particularly for floor-treating apparatus A, Fig. 1, or vacuum cleaners, comprises a body consisting of two metal or other plates 2, 3, Fig. 2, held in spaced relation by inwardly - turned flanges and provided with holes 5, 6 for securing tufts of bristles. The casing formed by the plates 2, 3 is removably fastened to a carrier disc 11, Fig. 1, by pins 10 with double conical heads engaging resilient means in the disc 11. A centrally-disposed circular member 12 on the disc 11 engages within a corresponding circular opening 12' in the casing. Two openings in the casing form hand grips.
Patent GB-1105512-A (GB)
Title: Forging manipulator
Inventor: THOMAS JACK MCCALLUM
IPC: B21J13/10
Filed: 1964-09-11
Abstract: 1,105,512. Manipulators. BRITISH IRON & STEEL RESEARCH ASSOCIATION. 10 Sept., 1965 [11 Sept., 19641, No. 37359/64. Heading B3H. A manipulator for use with a forging press incorporates a peel 5 which is carried by parallel links 9 to maintain a workpiece 1 in a horizontal attitude, the peel being initially set by a cylinder 10. and having its movement controlled, from the start of a forging operation, by a pilot cylinder 11. The pilot cylinder is connected, by a solenoid-operated valve, to a relief valve, to allow the workpiece to sink on to a bottom tool 3 and then to sink further during the forging operation. When an upper tool 4 is moved clear of the workpiece, the pilot cylinder is connected to an oil supply line for resetting.
Patent GB-1311295-A (GB)
Title: Centrifugal pumps
IPC: F04D29/62
Filed: 1970-08-03
Abstract: 1311295 Centrifugal pumps H WERNERT & CO KG 3 Aug 1970 [16 Sept 1969j 37366/70 Heading F1C In a centrifugal pump in which components contacted by the pumped medium are of material which resists attack by chemicals, an impeller housing 12 substantially in the form of a short cylinder which is open at least at one end is inserted into a side opening of a one-piece outer casing 4 of cast iron. A shoulder 25 on the housing 12 co-operates with a complementary shoulder on the outer casing 4 to locate the housing radially, while a screw 26 engaging a bore in the housing locates it circumferentially. Axial location is provided by segmental members 14 which are inserted into an annular groove 15 and hook over studs 10 which receive the flange of an inlet pipe (not shown). A unit 8 comprising a bearing assembly 6 secured by studs 22 to a flange 5, a cover plate 23 and an impeller 24 is attached to the outer casing 4 by studs (27), Fig. 1 (not shown). Before the flanged outlet pipe (not shown) is secured to the outer casing 4 by studs 11, a ring 19 is inserted to protect the outer casing from the chemical being pumped. The ring 19, impeller 24, impeller housing 12 and cover plate 23 are of material resistant to chemicals.
Patent GB-922280-A (GB)
Title: Improvements in or relating to processes and apparatus for the production of ultra-pure semiconductor substances
IPC: H01L21/205
Filed: 1960-11-01
Abstract: <PICT:0922280/III/1> Ultra-pure silicon, or other semiconductor substances are produced by a modification of the process of chemical conversion from the gaseous phase of the parent Specification, wherein the substance is precipitated on to a plurality of carrier bodies connected in series electrically, wherein one of more of the carrier bodies are heated to a temperature at which the voltage across each decreases with an increase in current therethrough, and then one or more further carrier bodies are heated to the temperature at which their conductivity is also increased. The carrier bodies, preferably of silicon or the substance to be precipitated, rest on supports 5, preferably consisting of or at least coated with silicon, silica, or silicon nitride.  These are connected to a voltage supply 8 through electrodes 3 and 4 which protrude through the walls of reaction chamber 1, which may be of quarts. One or more of switches 11 are opened and those carrier bodies related therewith are heated until the voltage across each decreases with an increase in current therethrough.  The passage of current is controlled by a variable resistor 9. Then one or more further switches are opened and the one or more further carrier bodies heated as before.  The temperature of the carrier bodies may be kept constant at a point where the current voltage characteristic of the resistor 9 is at a tangent to that of the plurality of carrier bodies.  When all the carriers have attained this temperature, the reaction gas, e.g. silicochloro, form, either alone or mixed with hydrogenenters inlets 6 and is decomposed to precipitate silicon on the carriers.  Specification 889,192 also is referred to.
Patent GB-820270-A (GB)
Title: Method of treating coconut type oils and the product thereby obtained
Inventor: BARSKY GEORGE
IPC: C11C3/10
Filed: 1956-12-08
Abstract: A process of modifying glyceride oils of the coconut oil group including babassu, tucum, cohune and palm kernel oils) comprises interesterifying the oil at an elevated temperature, generally 55-60 DEG  C., with a triglyceride of one or more lower fatty acids having 6-12 carbon atoms in the acid molecule, the amount of lower triglyceride being usually 5-100% by weight of the coconut-type oil. The reaction is suitably performed in the presence of a catalyst, for example a suspension of sodium methoxide in xylene, and in an inert atmosphere such as one of nitrogen, after which the mixture may be neutralized with acid, washed, dried, bleached or decolorized with activated charcoal, and finally steam deodorized.  If desired, the product so obtained may then be winterized.  The lower triglycerides used are preferably the mixed triglycerides of capric and caprylic acids in which the acids are present within the ratio range 15:85 to 35:65.  Minor amounts of caproic and lauric acids may also be present in these mixed triglycerides (up to 4% of the total), the individual permitted amounts being 1-1.5% and 1-2.5% respectively.  In a modification of the process, the oil to be treated is reacted directly with a mixture of the free lower fatty acids and glycerol, the glycerol being present in the amount required to produce a neutral oil.  Specification 820,269 is referred to.ALSO:A process of modifying glyceride oils of the coconut oil group (including babassu, tucum, cohune and palm kernel oils) comprises interesterifying the oil at an elevated temperature, generally 55-60 DEG C., with a triglyceride of one or more lower fatty acids having 6-12 carbon atoms in the acid molecule, the amount of lower triglyceride being usually 5-100% by weight of the coconut-type oil.  The reaction is suitably performed in the presence of a catalyst, for example a suspension of sodium methoxide in xylene, and in an inert atmosphere, such as one of nitrogen, after which the mixture may be neutralized with acid, washed, dried, bleached or deodorized with activated charcoal, and finally steam deodorized.  If desired, the product so obtained may then be winterized.  The lower triglycerides used are preferably the mixed triglycerides of capric and caprylic acids in which the acids are present within the ratio range 15 : 85 to 35 : 65.  Minor amounts of caproic and lauric acids may also be present in these mixed triglycerides (up to 4 % of the total), the individual permitted amounts being 1-1,5% and 1-2,5%, respectively.  In a modification of the process, the oil to be treated is reacted directly with a mixture of the free lower fatty acids and glycerol, the glycerol being present in the amount required to produce a neutral oil.  Those oils which contain 10-20% of the glycerides of the lower fatty acids are useful as margarine oils. Specification 820,269 is referred to.
Patent GB-986331-A (GB)
Title: Internal combustion engines of the vaporised charge spark ignition type
Inventor: RICARDO HARRY RALPH
IPC: F02M35/108
Filed: 1962-10-04
Abstract: 986,331. Intake systems. RICARDO & CO. ENGINEERS (1927) Ltd. Oct. 4, 1963 [Oct. 4, 1962], No. 37633/62. Heading F1B. Rich-mixture from a carburetter 35a is heated by exhaust gases in a manifold section 33 and is then delivered through pipes 37 to points adjacent the inlet ports where it mixes with air from an unheated air manifold 29, the supply of rich mixture being cut off during overrunning. Throttle valves 30, 38, in the air and mixture manifolds are interconnected by an adjustable link 41. A cut-off valve 34a cuts off the mixture flow during overrunning. In Fig. 5 the cut-off valve comprises a plunger 45 operated by a solenoid 44 which is in series with an accelerator operated switch 51 and a switch 54 operated by the battery cut-out so that the coil 44 is only energized to cut off the mixture flow when the accelerator pedal is released and the engine is overrunning. In a modification the energization of coil 44 is controlled by a diaphragm responsive to intake manifold suction.
Patent GB-1320207-A (GB)
Title: Photographic elements suitable for use in the preparation of lithographic plates
IPC: G03C1/06
Filed: 1970-08-04
Abstract: 1320207 Colloidal solutions of metal iron cyanides E I DU PONT DE NEMOURS & CO 4 Aug 1970 [4 Aug 1969] 37638/70 Heading C1A [Also in Divisions C3 and G2] Sols of Co, Ni, Cu, Pd and Rh ferro- and fern-cyanides are prepared by double decomposition in an aqueous medium, optionally in the presence of potassium citrate, saponin, thymol, gum arabic, polyaorylic acid, the partial sodium salt of N-lauryl-#-iminodipropionic acid, sodium octyl phenoxy ethoxy sulphonate, and/or coconut fatty acid/diethanolamine condensate.
Patent GB-1471350-A (GB)
Title: Method and apparatus for calling a ground station from an aircraft
IPC: H04B7/17
Filed: 1974-08-29
Abstract: 1471350 Calling ground station from aircraft DE STAAT DER NEDERLANDEN TE DEZEN VERTEGENWOORDIGD DOOR DE DIRECTEUR GENERAAL DER POSTERIJEN TELEGRAFIE EN TELEFONIE 29 Aug 1974 [4 Sept 1973 19 Feb 1974] 37726/74 Heading H4L In a method for calling a ground station from an aircraft, a two part calling signal is used. The first part incorporates a number of multi-bit codewords having a first constant "1" to "0" bit ratio, and incorporating idle time words and tens and unit a codewords for identifying a ground station. These are transmitted for a predetermined number of cycles, the idle time words being transmitted between alternate tens and units codewords, the idle time words being transmitted in one channel and the tens and units in another channel. The second part of the calling signal incorporates message codewords with a different predetermined "1" to "0" ratio and these are transmitted in spaced succession alternately in each of the two communication channels. In a transmitter suitable for carrying out the method, binary data is represented by frequency shift keying at generator 17, between 1150 Hz (1) and 850 Hz (0). When calling information is to be transmitted, switch 2 is closed to switch on power supply 1 and activate presetting device 3, such that relay 9 is operated, thus connecting the generator 17 to a radio transmitter at 23, and setting a bit generator 6, signal generator 7 and a phasing and message distributer 8. The first part of a calling code is developed at 10. Signals in the order α-D1- α-D2 are produced, (α representing idle time words). The first two digits of D1 and D2 identify a particular channel, the remaining five digits of D1 and D2 identify the tens and units designation of a particular called station. A unit 11 produces a signal 5 representing the spatial sector which the receiver aerial should scan, a unit 13 produces a signal M indicating the particular form of modulation being used at the transmitter and the unit 15 produces a signal 0 identifying the particular office required in the called station. The distributer 8 provides signals at appropriate times to open the gates 18-21 in the order required for passing on those signals to the f.s.k. generator 17. Operation is such that 32 cycles of the α-D1- α-D2 sequence is first transmitted, to make contact with the required called station, thereafter three cycles of the S-M-O signals are transmitted in each channel.
Patent GB-1272666-A (GB)
Title: Improvements in or relating to apparatus for the treatment of fluids
Inventor: HORVATH ROLAND JOSEPH
IPC: C02F1/68
Filed: 1969-07-28
Abstract: 1,272,666. Apparatus for treating fluids. DIAMOND SHAMROCK CORP. 28 July, 1969 [30 July, 1968], No. 37823/69. Heading B1C. [Also in Division C1] Apparatus for dispensing a chamical into a fluid comprises a container 20 through which the fluid is made to flow, at least one holder 24 arranged to dispense a chemical held therein into the fluid flowing thereby, the holder(s) being adjustably disposed and rechargeable from outside the container, and a baffle 31 having at least one weir opening for controlling the flow of fluid from the container. The chemical may be in the form of tablets 25 and may be dispensed through openings in portion 28 of the holder(s). A further baffle may be disposed within the container upstream of the holder(s) to reduce the velocity of the fluid entering the container, Figs. 4, 5 (not shown). The apparatus may be used inter alia for dispensing disinfectants into sewage, or fertilizers or biocides into irrigation waters or aqueous soils.
Patent GB-1395803-A (GB)
Title: Diode phase modulator
IPC: H03C7/02
Filed: 1972-08-14
Abstract: 1395803 Phase modulators THOMSON-CSF 14 Aug 1972 [17 Aug 1971] 37903/72 Heading H3R A phase modulator comprises a diode D and an element Z whose resistance varies inversely with the direct current flowing through the diode. The diode D has its impedance varied by the modulation signal G and the circuit is connected at terminal 51 to a transmission line fed with the carrier signal F 0  so that the reflected signal is phase modulated in accordance with the signal G. As the power to be modulated increases, the direct current through the diode will increase, and will reduce the resistance of element Z, thus ensuring that the diode remains operating in its non-linear region. The circuit may be modified to operate in a transmission mode instead of a reflected one, the two signals then being applied to the same electrode of diode D, Fig. 7 (not shown). A modulator unit may be formed by interconnecting several such modulators in series or in series/parallel by means #/4 lines, and the units thus formed may be cascaded, Figs. 8, 9 (not shown).
Patent GB-1315896-A (GB)
Title: Photographic silver-bleaching composition
IPC: G03C5/44
Filed: 1971-08-12
Abstract: 1315896 Photographic silver bleaching composition EASTMAN KODAK CO 12 Aug 1971 17 Aug 1970] 37912/71 Heading G2C A photographic silver bleaching composition comprises a nuclear substituted aromatic amine and either a water-soluble persulphate salt or a water-soluble nitrosodisulphonate salt in aqueous solution. The aromatic amine may have the formula: - wherein X and Y are each Hor 1-4C alkyl; and R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP>, R<SP>4</SP> and R<SP>5</SP> are each H, an amino group, OH, 1-4C alkyl, mono (1-4C alkyl) amino, or di (1-4C alkyl) amino providing that at least one of the groups R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP>, R<SP>4</SP> and R<SP>5</SP> is not H. The water-soluble salts may be of ammonium or an alkali metal such as sodium, potassium or lithium. The composition may be buffered in the range from 1À9 to 9, e.g. 6. The composition may contain an alkali metal bromide. The compositions may be used to bleach silver in black and white or colour materials, without affecting image dyes or otherwise causing stains or water pollution when exhausted.
Patent GB-1171327-A (GB)
Title: Improvements in Rolling Metal Strips from Metal Particles
IPC: B22F3/18
Filed: 1967-08-17
Abstract: 1,171,327. Rolling metal powder. SCHLOEMANN A.G. 17 Aug., 1967 [6 Sept., 1966], No. 37950/67. Heading B5A. Metal strips of different thicknesses are produced from metallic particles of different sizes using rolls of the same diameter, by separating the coarser particles from the finer ones, rolling the coarser particles into relatively thick strips and the finer particles into relatively thin strips. Expressions are given relating the strip thickness with the product of the mean particle size, the roll diameter and "space filling", the latter being the ratio of the bulk density of the particles to the density of the metal of which they consist. The particles may be rolled under protective gas at a temperature exceeding the recrystallization temperature of the metal of which they consist.