baber/WOPTO huggingface dataset:
Patent GB-938580-A (GB)
Title: Improvements in or relating to hand-operated plunger pumps
Inventor: EVES FREDERICK SYDNEY
IPC: F04B9/14
Filed: 1959-12-24
Abstract: 938,580. Cylinder covers. MUNSTER SIMMS & CO. Ltd. June 15, 1960 [Dec. 24, 1959], No. 43930/59. Class 122 (1). [Also in Group XXVIII] A bucket pump cylinder 10 is closed by ends 11, 12 formed from material having rubber-like qualities, e.g. neoprene. The end 11 has an integral gland 23 and may be fitted with a bush. The other end 12 is fitted with a perforated plate 29 and a valve 30.
Patent GB-1514103-A (GB)
Title: Hybrid circuit
IPC: H04B1/58
Filed: 1976-10-26
Abstract: 1514103 Two to four wire converters F S BOXALL 26 Oct 1976 44397/76 Heading H4R Two to four wire converter includes a number of current mirror circuits, e.g. 40, 41, 43, Fig. 3, which are coupled to the two wire line 10 and pass balanced signals from the two wire line to the send pair 18 of the four wire line, while suppressing longitudinal mode signals appearing on the two wire line, and a further circuit, e.g. current mirrors 43, 44, Fig. 3, or a transistor 100, Fig. 5, which couples signals on the receive pair 19 of the four wire line to the two wire line. As described the hybrid is provided with a relay 70, 71, for detecting on-hook/off-hook and dial break conditions and repeating them or, in a central office equipment, Fig. 4 (not shown), equipment for superimposing such signals on the two wire line. In addition in the central office equipment the two wire line side is connected via a rectifier' bridge (81 to 84) to maintain the D.C. polarity on the converter constant. Compensation for variations in the length of the two wire line can be provided by varying the value of a resistor 120, Fig. 6 (not shown) to vary the signal transfer from the receive line to the two wire line, the variation can be effected automatically by using the source drain path of an FET controlled by the current or voltage in the two wire line. The signal balance, or echo cancelling, can also be automatically controlled by variation of the source drain path impedance of an FET (125, Fig. 6) or a light sensitive resistor 131, Fig. 7 (not shown) controlled respectively by the voltage on the current in the two wire line 10. The current mirrors, which can be of the form described with respect to Figs. 8A, 8C and 9 (not shown), each provide an output current at an output terminal, e.g. 46 for current mirror 40 Fig. 3, which is proportional to the current at the input terminal, 45, indicated by the ring.
Patent GB-1209517-A (GB)
Title: An arrangement for detachably securing a leg to an object, such as an article of furniture
Inventor: OESTLUND RUNE ARVID EFRAIM
IPC: F16B12/48
Filed: 1968-09-19
Abstract: 1,209,517. Furniture joints. K. B. MATHSSON [trading as KARL MATHSSON]. 19 Sept., 1968 [26 Sept., 1967], No. 44545/68. Heading A4H. The upper part of the leg of a table &c. is slotted and when inserted into a recess 3 in the table the parts 1a, 1b, 1c, 1d formed by the slots spring apart and the internal edge of an apertured fitting 4 secured to the table engages in a groove 6 in the leg or a tongue (9, Fig. 6) on the leg co-operates with a recess in the table. A projection 8 in the recess prevents the leg from turning. The aperture in the fitting 4 may be circular, square, or triangular.
Patent GB-1054278-A (GB)
Title: Pharmaceutical preparations having hypoglycaemic properties
IPC: C07D231/38
Filed: 1964-11-02
Abstract: 1,054,278. Hypoglycemic compositions containing sulphonamides. CIBA Ltd. Nov. 2, 1964 [Nov. 5, 1963; Sept. 17, 1964], No. 44618/64. Heading A5B. [Also in Division C2] Pharmaceutical compositions comprise a sulphonamide of formula: or an N-acyl derivative or physiologically acceptable salt thereof, wherein Ph and Ph' each represent a substituted or unsubstituted phenyl group; R" is hydrogen, lower alkyl, lower alkoxy, lower alkoxy-lower alkyl, lower alkoxy-lower alkoxy, cyclo-alkyl, or substituted or unsubstituted phenyl or pyridyl; and R' is as for R", or is halogen, or R' together with R" represent an alkylene group, providing that when Ph»SO 2 »NH» is parasulphanilamido, than at least one of R' and R" is not hydrogen, in admixture or conjunction with a benzenesulphonylurea capable of lowering the blood sugar level, and whose phenyl group carries a methyl group. The term "lower" in qualifying alkyl, alkylene, alkoxy and alkanoyl groups and aliphatic carboxylic acids is used to mean groups and compounds containing up to 6 carbon atoms. Examples are given for preparing compositions of the active agents in oral unit dosage form with conventional excipients, and also for preparation of the active ingredients (see Division C2). The sulphonamide is said to delay the biological degradation of the sulphonyl-urea in vivo, and thus to potentiate the action of the latter.
Patent GB-1463979-A (GB)
Title: Liquid crystal devices
IPC: G02F1/139
Filed: 1974-08-29
Abstract: 1463979 Liquid crystal compositions DEFENCE SECRETARY OF STATE FOR 29 Aug 1974 [25 Sept 1973] 44941/73 Heading C4X [Also in Division G2] A nematic liquid crystal composition suitable for use in a "twist" electro-optic display device (see Divisions G2) comprises an equimolar composition of three p-substituted benzylidene p<SP>1</SP>-cyanoanilins, the substituents being butoxy, hexoxy, and heptylcarbonyloxy. The dielectric anisotropy of the composition is positive at low electric field frequencies and negative at high frequencies. Reference has been directed by the Comptroller to Specification 1,410,161.
Patent GB-1442097-A (GB)
Title: Apparatus and method for the continuous cold work hardening of filamentary metal stock
IPC: B21F9/00
Filed: 1974-10-17
Abstract: 1442097 Twisting and stretching metal VEREINIGTE OSTERREICHISCHE EISENUND STAHLWERKE -ALPINE MONTAN AG 17 Oct 1974 [19 Oct 1973] 45008/74 Heading B3E Apparatus for continuous cold work hardening of wire or other filamentary metal stock by stretching and/or twisting comprises a rotatable housing 1 for at least one coil 2 of the wire located coaxially with the housing, stationary drawgear 13 for the wire, and a frame 3 between the housing 1 and drawgear 13 being rotatable about the same axis as the housing and supported a brake for the wire, and means for driving the housing and frame in the same direction. As shown, the housing and frame form a unitary structure journalled by hollow shafts 5, 6 in bearings 7, 8, and driven by motor 10 through gears 11. The wire 17 drawn off the coil 2 is sheared around drum 4 rotatable aboutaxis 18 in frame 3 and co-operating with brake shoes 19. The wire then passes around drawgear drum 13 and on to a coiler 20. When it is desired to stretch the wire only, the housing and frame are not rotated, and stretching occurs between drums 13 and 4. When the housing and frame are rotated to effect twisting, tensioning of the wire is maintained within the elastic limit. The housing 1 may contain several coils of wire, welded end to end to avoid waste at the beginning and end of each coil.
Patent GB-1521526-A (GB)
Title: Production of inversely operating transistors
IPC: H01L29/73
Filed: 1975-10-31
Abstract: 1521526 Transistors SIEMENS AG 31 Oct 1975 [21 Feb 1975] 45193/75 Heading H1K An inverse transistor, in which the collector, base and emitter regions 11-13 are arranged sequentially from a surface of a semiconductor body, is made by ion-implanting the base region 12 in a plurality of steps so as to produce a drift field E therein, which accelerates minority carriers in the base region 12 towards the collector region and reduces the base transit time. The ion implantation may be effected using B-implantation in a succession of steps at 200, 100 and 50 KeV, so as to produce a maximum doping concentration of 10<SP>17</SP> cm<SP>-3</SP> near the emitter region.
Patent GB-1192189-A (GB)
Title: Polyolefine Mixtures free from Melt Fracture
IPC: C08L23/04
Filed: 1967-10-04
Abstract: 1,192,189. Polyolefin compositions. CHEMISCHE WERKE HULS A.G. 4 Oct., 1967 [20 Oct., 1966], No. 45194/67. Heading C3P. Moulding compositions based on low pressure polyethylene or a low pressure copolymer of ethylene with propylene or butylene comprise (a) 20 to 50 weight per cent of a low pressure polyethylene having a density of 0À935 to 0À950 g./c.c., a reduced specific viscosity of 3À2 to 4À8 and a non-uniformity of 4 to 10 or (b) 10 to 30 weight per cent of a polyethylene as in (a) together with 10 to 4 weight per cent of an apolar rubber cross-linkable with sulphur and 0À1 to 1À0 weight per cent of a vulcanizing agent for the rubber. Specified rubbers are butyl rubber, cis-1,4-polyisoprene, cis-1,4-polybutadiene, and butadiene/styrene and ethylene/ propylene/dicyclopentadiene copolymers. The compositions may also comprise stabilizers, antioxidants, antistatics, lubricants, fillers and pigments, and may be extruded to give mouldings free from melt fracture. Examples describe moulding compositions comprising 1 (b) ethylene/butylene copolymer and polyethylene; together with 1 (c) butyl rubber, 4,4<SP>1</SP>-thiobis- (6 - t - butyl - m - cresol), sulphur, di - o - tolylguanidine, stearic acid, zinc oxide and N-phenyl- N<SP>1</SP> - isopropyl - p - phenylenediamine; 2 (b) acetylene black; and 3 (c) acetylene black, ethylene / propylene / dicyclopentadiene copolymer rubber and compounding ingredients as in 1 (c).
Patent GB-1533258-A (GB)
Title: Compressed-gas circuit breaker installation
IPC: H02B13/035
Filed: 1975-10-31
Abstract: 1533258 Switchgear structures WESTINGHOUSE ELECTRIC CORP 31 Oct 1975 [11 Nov 1974] 45444/75 Heading H1N A pressurized gas reservoir tank 33 of a multiphase compressed gas circuit breaker installation is divided into a plurality of adjoining compartments 44, 45, 46 by at least one transversely disposed baffle 41 and contains a heater 26 which extends the length of the tank through the baffles to heat the pressurized gas thus preventing its liquefaction, there being high temperature gas and low temperature gas pipes 35, 37 leading from the tank to circuit breaker modules 13, 14, 15 of the installation. These gas pipes terminate at different levels in the gas tank, the low temperature gas pipe 37 extending farther downwards into the tank than the high temperature gas pipe 35 so as to encourage gas circulation. The heater 26 comprises one or two heating elements extending inside an air filled cylindrical tube heater casing 31, Fig. 14, not shown, and the baffle or baffles 41 are made of metal plate fixed at parts of their circumference to the gas tank wall but having clearances at other parts thus allowing some passage of gas past them around their edges from one compartment to the next, Fig. 13, not shown. Sulphur hexafluoride is used as the compressed gas.
Patent GB-1008183-A (GB)
Title: A control circuit for use in controlling the output of an electrical device
IPC: H02P9/30
Filed: 1962-11-30
Abstract: 1, 008,183. Automatic voltage control systems. SIEMENS-SCHUCKERT WERKE A.G. Nov. 30,1962 [Dec. 1,1961], No. 45552/62. Heading G3R. A system for controlling the electrical output of an electrical retractive control device, such as the output voltage of a direct current generator 1 comprises a comparison unit 6 which derives an error voltage dependent upon the difference between the actual generator output voltage 15,16 and and the desired generator output voltage, a saw tooth generator 8 and a pulse generator 11 which generates a negative going pulse at each zero instant of the saw tooth voltage; the three voltage components shown in figures 3a, 3b, 3c respectively being summed as shown in figure 3d and used to control a bi-stable trigger circuit 9 which is used to control a switching device such as a silicon controlled rectifier 5 in the circuit of the field winching 2 of the generator 1. A second pulse generator 10 is provided to supply quenching pulses for the silicon controlled rectifier 5 and the error signal from the unit 6 is amplified by a unit 7. All the units 6, 7, 8,10,11 are supplied from a square wave oscillator 12. The energy supplied to the field winding 2 is thus controlled by the magnitude of the error signal and the pulse from the pulse generator 11 is used to ensure that the trigger circuit 9 is reset each time the saw tooth voltage returns to its starting value. The amplifying unit 7 comprises a pair of suitably connected transistors whilst the trigger circuit 9 includes a pair of cross connected transistors. The pulse generator 10 controls a second silicon controlled rectifier connected in shunt to the first rectifier 5.
Patent GB-1286247-A (GB)
Title: Improved wallboard
Inventor: DONOVAN JOHN L
IPC: E04C2/04
Filed: 1968-09-25
Abstract: 1286247 Coated wallboard BPB INDUSTRIES Ltd 24 Sept 1969 [25 Sept 1968] 45610/68 Heading B2E [Also in Division E1] A wallboard including a core, particularly of gypsum, having an outer covering of paper bonded thereto to provide a pair of opposite paper covered edge faces has a portion adjacent each edge face tapered in thickness towards the respective edge face, and the paper on the edge face and on an adjacent part of the tapered portion is treated with a waterproofing agent such as a hot melt adhesive, wax or natural or synthetic resin (e.g. shellac) by spraying or roller coating. A number of the boards may be attached to a framework with the paper covered edge faces abutting and the recesses formed by the tapered portions filled in with a jointing cement such as a polyvinyl alcohol or casein based cement and a reinforcing tape to provide a dry wall system.
Patent GB-1396754-A (GB)
Title: Process for preparing alpha-keto esters
Inventor: CAGLIOTI LUCIANO DR
IPC: C07C69/66
Filed: 1972-10-05
Abstract: 1396754 Alpha-keto-esters SNAMPROGETTI SpA 5 Oct 1972 [5 Oct 1971] 46068/72 Heading C2C Alpha-keto-esters are prepared by contacting at a temperature below 0‹ C. a dehydrating agent with a product (a hydroperoxide) obtainable by reacting a terminal acetylenic compound with O 3  in an alcohol at less than 0‹ C. In the examples the dehydrating agent used was SOCl 2  or POCl 3  in pyridine, and compounds prepared were methyl esters of benzoyl formic acid, α-ketohexanoic acid and α-ketooctanoic acid.
Patent GB-1451260-A (GB)
Title: Gas turbine power plant
IPC: F02C7/18
Filed: 1974-10-26
Abstract: 1451260 Thermal regenerators; ventilating vehicles; vortex tubes UNITED TURBINE AB & CO KB 26 Oct 1974 46402/74 Headings F4H F4K and F4V [Also in Division F1] A gas turbine power plant comprising, Fig. 1, at one compressor 10 and at least one turbine 11 includes means for bleeding off a portion of the air delivered by the compressor and directing it via line 16 to an expansion member 18 arranged to divide the portion into hotter and cooler fractions, at least part of the cooler fraction being conveyed via line 19 as cooling air to the inlet of turbine 11. The plant also includes a combustion chamber 12, power turbines 13, 14 and a regenerator 15. The volume of bleed air is controlled by valve 89, at least some of the air flowing through cooler 17 before entering expansion member 18. The latter may consist of a Hilsch tube (50, Fig. 5, not shown) into which the bleed air is tangentially directed so as to induce swirl. The opposite end walls of the tube are provided with respective smaller and larger exit ports 51, 52, formed in replaceable washers (53, 54) through which the cooler and hotter fractions pass to lines 19, 22. The cooler fraction is directed to the turbine 11 as coolant and may be mixed in an ejector (36, Fig. 2, not shown) with some warm, unexpanded, bleed air directed via line 20, the temperature of the mixture being controlled by valve 21. Mixing may also take place in a further ejector 43 supplying cooling air to a sealing bellows 42 of regenerator 15 when the latter is of rotary type. The warmer fraction in line 22 may be used for windscreen de-icing, water heating &c., or, by way of device 24, for air conditioning a passenger or cargo space in a vehicle propelled by the gas turbine power plant. In a modification, Fig. 6, an insulated cargo space 61 in a vehicle is conditioned by air bled from the compressor 10 and passed via line 16, cooler 17 and valve 70 to Hilsch tube 18a. The cooler and hotter fractions from the latter are passed via lines 62, 63 respectively to mixing chamber 64 and thence via line 65 to an ejector 66 within cargo space 61. A temperature sensor 67 within the latter transmits signals to a device 68 controlling valves 70, 71, 72. Sensors 75, 76 are also provided in further outlets of valves 71, 72. In a further arrangement (Fig. 7, not shown) several Hilsch tubes 18 are disposed in series to effect extra cooling.
Patent GB-1151135-A (GB)
Title: An Improved Vehicle Control Assembly.
Inventor: DEARNLEY KENNETH
IPC: B62D1/184
Filed: 1966-10-18
Abstract: 1,151,135. Adjustable vehicle controls. DAVID BROWN TRACTORS Ltd. 18 Oct., 1967 [18 Oct., 1966], No. 46435/66. Heading B7H. A vehicle control assembly comprises support means 11, 12 adapted to be secured to a vehicle, a housing member 14, which is angularly adjustable relative to the support means about a transverse axis of the vehicle 22, a steering shaft 15 which is rotatable in the housing member 14, a manually displaceable lever member 26 mounted on the support means, and a projection 24 on one of the members 14, 16 engageable with any one of a series of recesses 21 of the other member to lock the housing member in an angularly adjusted position relative to the support means. As shown, the projection 24 is maintained by a spring 27 in engagement with the recesses 21 which are provided in a quadrant 17 which is secured to a spindle 13 to which the housing member 14 is secured. A throttle control 28 and gear change levers 29, 30 are pivotably mounted on the spindle. The steering-wheel 16 actuates an hydraulic steering control valve 19 in the housing member 14.
Patent GB-1259829-A (GB)
Title: Flame resistant cloth
IPC: A41D31/00
Filed: 1969-09-22
Abstract: 1,259,829. Yarns; flame resistant fabric. CARBORUNDUM CO. 22 Sept., 1969 [3 Oct., 1968], No. 46495/69. Heading D1W. A flame resistant fabric comprises phenolic fibres that are cured resin condensation products of phenols and aldehydes which can be formed into fibres and cured, blended with flame resistant fibres of animal, polyamide, polyacrylonitrile, fluorocarbon, glass and mineral, cotton or rayon chemically treated to reduce flamability or mixtures thereof. The fabric may be coated with a layer of phenolic resin or fluorocarbon resin. In a preferred embodiment, the fabric comprises at least 35% by weight of phenolic fibres. The phenolic fibres are preferably cured novolac resin condensation products of phenols and aldehydes. The fibre formed is of elliptical cross-section, is thermoplastic and of a glassy structure. The fibres may be incorporated in the fabric in the form of yarns which comprise a core component of animal fibre, polyamide fibre, polyacrylonitrile fibre, fluorocarbon, glass, mineral fibres, treated cotton or rayon fibres, and a sheath component of the phenolic fibres.
Patent GB-1445104-A (GB)
Title: Pigment dispersions
IPC: C09K23/22
Filed: 1972-10-11
Abstract: 1445104 Emulsifiable mixture CIBAGEIGY AG 30 Aug 1973 [11 Oct 1972] 46746/ 72 Heading B1V [Also in Divisions Cl and C2] A dry composition comprises a particulate solid material and a water-insoluble dispersing agent containing two or more urethane groups but no significant proportion of basic amino groups. A flocculation-resistant dispersion comprises these components plus an organic liquid. The solid may be a dyestuff or an organic or inorganic pigment. Suitable dispersing agents may be the reaction products of phenols or mixtures of phenols or alcohols with toluene di-isocyanate.
Patent GB-1569687-A (GB)
Title: Smectic display cell
IPC: G02F1/137
Filed: 1977-11-10
Abstract: A memorising liquid-crystal display element has a smectic liquid-crystal layer (5) of negative dielectric anisotropy which is embedded between cover plates (1, 2) provided with electrodes on their inner surfaces. If an electric field is applied, the appearance of the display changes from clear (black between crossed polarisers) to milky in conjunction with a change in the alignment from the homeotropic into a homogeneous (metastable) state which then degenerates into a focal/conical) one. The homeotropic alignment is restored by heating into the nematic phase and by cooling into the smectic phase. The heating can be performed by laser beams. <IMAGE>
Patent GB-1532962-A (GB)
Title: Process of forming patterns on a surface
IPC: B23K26/06
Filed: 1975-11-17
Abstract: 1532962 Photographic processes MASCHINENFABRIK AUGSBURG NURNBERG AG 17 Nov 1975 [19 Nov 1974] 47250/75 Heading G2X A process for producing a pattern in a spherical or part spherical surface which comprises coating the surface with a photo-resist, tracing the pattern thereon with a laser beam of controlled diameter, developing to remove the unexposed or exposed areas and etching the bared areas. Normally this produces a die from which the desired articles e.g. pivot bearings for gyroscopes, can be produced. Generally the laser beam is held stationary while the workpiece is moved in 2 directions and adjusting the diameter of the beam to trace a pattern of the desired width.
Patent GB-1199976-A (GB)
Title: Improvements in or relating to Transportable Devices for Spreading Thick-Liquid Substances during Travel of the Devices
IPC: A01C23/00
Filed: 1967-10-17
Abstract: 1,199,976. Spraying thick liquids. C. VAN DER LELY N.V. 17 Oct., 1967 [5 Nov., 1966], No. 47328/67. Heading E1G. [Also in Division B2] A thick liquid is spread on the ground by a travelling container 1 mounted on a tractortowed frame 2, the container being pressurised by an air pump 7 having at least one rear outlet tube 18 which rises to at least half the container height and carries a sector-shaped spreading plate 19, whereby the liquid is sprayed against the plate 19 and so spread towards the ground in a downwardly inclined fan shape. As shown the container has a pair of diverging outlet tubes 18 and a control cock 13 actuated from the tractor seat through a screwed spindle 14.
Patent GB-1081284-A (GB)
Title: Improvements in or relating to disc brakes
IPC: F16D65/12
Filed: 1964-11-24
Abstract: 1,081,284. Disc brakes. DUNLOP CO. Ltd- Nov. 24, 1964 [Nov. 26, 1963], No. 47747/64. Heading F2E. In a disc brake, the brake disc 1 is formed with circumferentially extending recesses or apertures on the radial and/or dished central body portion of the brake disc to provide a labyrinthine path for the conduction of heat from the braking surfaces such that the heat follows a sinuous course to enable the disc and wheel hub to remain at a lower temperature at which expansion of the dished portion 2 and consequent deformation of the disc 1 is correspondingly reduced. In the embodiment shown in Fig. 1, the brake disc 1 is formed on opposite sides thereof, adjacent the dished central body portion 2, with annular rows of recesses 3, 4 in individual rows which are staggered in relation to the recesses in the other rows. The heat produced on braking is thus constrained to flow along a labyrinthine path in the direction of the arrows. In an alternative embodiment shown in Fig. 3, the dished central body portion 2 of the brake disc is formed on its outside with recesses 5 and on its inside with recesses 6 to provide the labyrinthine path shown by the arrows. It is stated in the Specification that a reduction in the squeal caused by one of the brake pads dragging against the brake disc is substantially eliminated by the above means.