baber/WOPTO huggingface dataset:
Patent GB-1377404-A (GB)
Title: Gallium phosphide light emitting semiconductive materials and  methods of preparing the same
IPC: H01L21/00
Filed: 1972-07-20
Abstract: 1377404 Electroluminescence NORTH AMERICAN PHILIPS CORP 20 July 1972 [23 July 1971] 34034/72 Heading C4S [Also in Division H1] A luminescent single crystal of GaP contains nearest-neighbour complexes each comprising a gallium vacancy V ga  filled with an acceptor from the group Be, Mg, Ca, Sr and/or Ba and an oxygen atom occupying a P site O p . The concentration of the complexes is preferably 10<SP>16</SP>-10<SP>18</SP> cm.<SP>-3</SP>, sufficient to produce a luminescence whose colour is determined by the acceptor selected. Cd may optionally be added to modify the emitted spectrum. Although the luminescence may be excited by U.V. light, the preferred embodiment is an electroluminescent diode comprising a P-type GaP layer containing acceptor filled V ga -O p  complexes epitaxially grown on an N-type crystal of Te-doped (III) GaP, GaAs, GaAsP or Si. The acceptor may be incorporated during epitaxial growth, but is preferably diffused in and annealed subsequently. Growth may be from the liquid phase, but is preferably an open tube water vapour transport process. In both cases care has to be exercised to exclude contaminants such as Si, C or Cu which would preferentially occupy the Ga vacancies.
Patent GB-1195777-A (GB)
Title: Process for Preparing Delta<5>(10)-3-Oxo-19-Norsteroid Compounds
IPC: C07C/
Filed: 1968-07-18
Abstract: 1,195,777. #<SP>5(10)</SP>-Steroids. SANKYO CO. Ltd. 18 July, 1968 [25 July, 1967], No. 34312/68. Heading C2U. #<SP>5(10)</SP>-3-Oxo-19-nor-steroids are prepared by Oppenauer oxidation of #<SP>5</SP>-3#-hydroxy-10#- carboxy-19-nor-steroids.
Patent GB-410040-A (GB)
Title: Improvements in and relating to cardboard and like collapsible boxes
IPC: B65D5/42
Filed: 1933-12-08
Abstract: 410,040. Collapsable cardboard &c. boxes. NORMAN & SON (FALCON), Ltd., T., and WATTS, C. I., Falcon Works, Lynton Road, Bermondsey, London. Dec. 8, 1933, No. 34576. [Class 18.] A collapsable cardboard &c. box of the kind, e.g. that is comparatively deep and is used for bouquets, wreaths and fragile articles, has the sides 2 provided with end extensions 2<c> and with foldover flaps 2<a> which have end extensions 2b, the edges 6 being sloping as shown. Flaps 3<a> fold over inwardly turned flaps 2b, 2<c> and clips &c. 4 pass through apertures 5. Owing to the sloping upper edges of the extensions 2b, 2<c> the extensions 2<b> rise above the extension 2<c> until their upper edges reach the folds of the end flaps, the side flaps 2<a> thus curving away from the sides.
Patent GB-1437799-A (GB)
Title: Benzimidazolinone compounds
IPC: C07D417/14
Filed: 1973-07-20
Abstract: 1437799 1 - (Heterocyclic substituted)- benzimidazolinones E R SQUIBB & SONS Inc 20 July 1973 [31 July 1972] 34765/73 Heading C2C Novel compounds I in which Z is R<SP>1</SP> is hydrogen methyl, ethyl, phenyl, nitrophenyl, benzyl, phenethyl, tolyl or xylyl, R<SP>2</SP> is hydrogen, C 1-5  alkyl, benzyl, nitrobenzyl, phenethyl, nitrophenethyl, (C 1-10  alkoxy) carbonyl, phenoxycarbonyl optionally substituted by nitro, halo or C 1-5  alkyl, C 2-6  alkanoyl, benzoyl optionally substituted by halogen or C 1-3  alkyl, sym-di-(C 1-3  alkyl)-carbamoyl di- (C 1-3  alkyl)amino-C 2-3  alkylene or a Group IV R<SP>3</SP> is halogen, nitro, cyano, trifluoromethyl, C 1-3  alkyl, C 1-3  alkoxy amino, di(C 1-3  alkyl)- amino, C 2-6  alkanoyl, C 2-6  alkanoyl amino or benzoyl and n is 0, 1 or 2 and their acid addition salts are prepared by reaction of a benzimidazole II with a haloisothiocyanate (III) X-Z(R 1 )-NCS in the presence of a base. The benzimidazole II wherein R<SP>2</SP> is other than a group of Formula IV may be used in the form of a metal salt (obtained by reacting II with, for example, a metal hydride, amide or alkoxide). When benzimidazoles of Formula II wherein R<SP>2</SP> is H are used as reactants, compounds of Formula I may be prepared in which R<SP>2</SP> is H and in which R<SP>2</SP> is of Formula IV by using one and two mols. respectively of the haloisocyanate reactant III. Compounds I are also prepared by reacting compounds I wherein R<SP>2</SP> is H or a metal salt thereof with the required R<SP>2</SP>-chloride or bromide wherein R<SP>2</SP> is other than hydrogen. Pharmaceutical compositions which may be administered orally or parenterally and are useful as anti-inflammatory agents contain compounds I as the active ingredient.
Patent GB-360686-A (GB)
Title: Exhaust silencer for internal combustion engines
IPC: F01N1/00
Filed: 1930-11-20
Abstract: 360,686. Exhaust silencers. BARRINGHAUS, P., 4, Bergstrasse, Witten, Ruhr, Germany. Nov. 20, 1930, No. 34941. [Class 7 (ii).] The silencer is made in halves 1, each of which is so formed by stamping and drawing that, when the halves are assembled, the complete silencer comprises a series of chambers communicating with one another by means of nozzles 2 the size of which decreases from chamber to chamber towards the outlet end.
Patent GB-207400-A (GB)
Title: Improvements in and connected with shaft couplings
IPC: F16D1/12
Filed: 1922-12-22
Abstract: 207,400. North, R. B. Dec. 22, 1922. Shaft couplings are adapted to adjust two shafts positively through small angles by turning a connecting ring d relatively to two conical gears a, b having teeth of different pitch. The ring d is of rubber, fibre, or the like, and is firmly gripped externally by a steel shell c which forms the tread of a pulley driving auxiliary mechanism. In the application to a magneto upon an internal combustion engine, the pulley may drive a speed or revolution indicator.
Patent GB-1287272-A (GB)
Title: Improvements relating to buckles for safety seat belts for vehicles
Inventor: CUNNINGHAM DOUGLAS JAMES
IPC: A44B11/25
Filed: 1969-07-11
Abstract: 1287272 Buckles WINGARD Ltd 4 March 1970 [11 July 1969] 34982/69 Headings E2A and E2B A two-part buckle for a safety seat belt for vehicles has a first part 10 to which lap and diagonal straps are connected in use which comprises a flat shank 12 having a step 14 in at least one side edge behind a tapered or rounded nose 13, and a second part comprising a frame incorporating two parallel walls 15 between which the shank enters and a spring-loaded latch member which is free to rock in the frame and which has a flat strut portion 21 working in transversely aligned openings 17 which are formed in the walls of the frame and are offset from the centre line of the frame, the strut portion being adapted to engage between the upper ends of the openings in the frame and the step in the shank of the first part of the buckle when that is inserted into the frame, and the latch member being rockable manually to disengage the strut portion from the step in the shank of the first part and to allow that part to be withdrawn from the second part. In the construction shown the latch member includes a sheet metal part having two parallel limbs 18 which freely embrace the frame and an end part 19 extends downwardly to form a finger piece. The frame is attached to a stalk 26 which in use is anchored to a load carrying part of the vehicle and the frame is enclosed in a housing 27 having an opening 29 in one side through which the finger piece is accessible.
Patent GB-1072096-A (GB)
Title: The removal of excess material from an opening in a container holding the material
Inventor: SHAPIRO ALAN ELIAS
IPC: B65B3/26
Filed: 1964-08-26
Abstract: 1,072,096. Removing excess material from containers. C. SHIPPAM Ltd. Aug. 25, 1965 [Aug. 26, 1964], No. 35033/64. Heading BSC. Excess material is wiped from the mouth of a filled container 1 by a rotating wiper blade 8 (Fig. 3) and is thrown outwardly into an enclosure 2 into which the container protrudes. Rotating scrapers (16) remove the excess material from the walls of the enclosure 2, and spiral scrapers (13) then transfer it from the floor to an outlet spout (4) (Figs. 1, 2, not shown). Containers are fed intermittently to the treatment position by a star wheel 21 (Fig. 3) in which they are supported in a clamping member 24. In the treatment position they are further supported by a second clamping member 30, both clamping members being provided at their clamping faces with sponge rubber pads. The containers are supported in the treatment position on a platform 35 supported on a rod 36 slidably disposed within a piston (27), (Fig. 5, not shown). When the piston is raised, the container 1 (Fig. 3) is lifted into contact with the wiper blades 8, bars 28, 29 causing the clamping devices 24, 30 to be raised at the same time. The clamping device 30 is forced against the wall of the container by means of the cam 32. The wiper blade 8 rotates continuously.
Patent GB-754698-A (GB)
Title: Means for the elimination of oxides of nitrogen from coal gases
IPC: C10K3/00
Filed: 1954-12-03
Abstract: 754,698. Gas purifying. THYSSENCHE GAS-UND WASSERWERKE GES. Dec. 3, 1954 [Oct. 4, 1954], No. 35053/54. Class 55(2). In the removal of nitric oxide from coke oven or similar gases by subjecting the gases to at least 2 atmos. pressure for one or several minutes at 60‹-90‹C., the reaction chamber comprises the pipes connecting a compressor and after-cooler. The pipes are normally heatinsulated, but may be provided with direct or indirect cooling as by water when a high gas compression has resulted in a temperature above the optimum range. Conversely a steam or other heater may be employed. A cooling water spray also serves to wash away reaction products.
Patent GB-1106603-A (GB)
Title: Method and composition for extinguishing and preventing fires in flammable liquids
IPC: A62D1/00
Filed: 1965-08-16
Abstract: A composition for extinguishing and preventing fires in flammable liquids comprises particles of a water-isoluble water-swellable gel-forming polymer which when gelled are at least 20 times the weight of the dry polymer particles, in admixture with light-weight particles having a density less than that of the flammable liquid in an amount such that the composition when water-swollen floats on the surface of the flammable liquid. Suitable polymers are crosslinked polymers whose linear analogue is watersoluble, in particular a copolymer of acrylamide and potassium acrylate.  The light-weight substance is particularly an expanded perlite; alternative materials (see Example 3) are expanded graphite, powdered polymethylmethacrylate, vermiculite, urea - formaldehyde "micro ballons," hollow glass spheres, urethane foam dust or foamed polystyrene beads.  These particles may be coated with a water-insoluble, generally polymeric, adhesive such as an epoxy resin.ALSO:A composition for extinguishing and preventing fires in flammable liquids comprises particles of a water-insoluble water-swellable gel-forming polymer which when gelled are at least 20 times the weight of the dry polymer particles, in admixture with light-weight particles having a density less than that of the flammable liquid in an amount such that the composition when water-swollen floats on the surface of the flammable liquid. Suitable polymers are cross-linked polymers whose linear analogue is water-soluble, in particular a copolymer of acrylamide and potassium acrylate.  The lightweight substance is particularly an expanded perlite; alternative materials are expanded graphite, powdered polymethylmethacrylate, vermiculite, urea-formaldehyde "micro balloons", hollow glass spheres, urethane foam dust or foamed polystyrene beads.  These particles may be coated with a water-insoluble, generally polymeric, adhesive such as an epoxy resin.  In Examples the composition is tested on benzene, kerosene, gasoline and hexane.
Patent GB-1524951-A (GB)
Title: Storage containers
IPC: B65D81/38
Filed: 1975-08-11
Abstract: 1524951 Container closures A A CRANSTON 11 Aug 1975 [9 Aug 1974] 35145/74 Heading B8T [Also in Divisions F4 and B5] The closure member for a storage container comprises a core of cellular plastics material at least partially covered with a layer of compressible sheet material. The storage container also includes a body portion having a recess for an article, formed of cellular plastics material disposed between inner and outer layers of cardboard, corrugated board or plastics sheet material.  The closure member is formed by placing in a mould 10 a layer of sheet material 16, preferably flexible polyurethane sheet; the necessary foaming ingredients; and if required, strip material 17 for forming a handle. The strip material may be supported in the closure member by plywood.
Patent GB-520005-A (GB)
Title: Asymmetrical resistance
IPC: H01L21/16
Filed: 1938-12-02
Abstract: 520,005. Alloys; coating metals. STANDARD TELEPHONES & CABLES, Ltd. Dec. 2, 1938, No. 35164. Convention date, Dec. 4, 1937. [Classes 82 (i) and 82 (ii)] [Also in Group XXXVI] A copper cuprous oxide rectifier is made from commercial copper of high purity to which has been added from 0À05 - 0À4 per cent. of lead. Such an alloy is formed into sheets, and blanks and washers punched therefrom and an oxide-coating is produced thereon, for instance by heating at 1000‹C. for 8 minutes in an oxidizing atmosphere, heating at 500‹C. for 5 minutes and quenching in cold water. The resulting oxide layer is heated to provide a low ohmic contact surface thereon, for instance by the process described in Specification 519,987.
Patent GB-381027-A (GB)
Title: Improvements relating to loose leaf binders
IPC: B42F13/00
Filed: 1931-12-21
Abstract: 381,027. Loose-leaf binders. MORLAND & IMPEY, Ltd. and SHEWELL, W., Kalamazoo Works, Northfield, Birmingham. Dec. 21, 1931, No. 35230. [Classes 16 and 146 (i).] Covers for looseleaf binders comprise a main panel a having separate edgepieces b slipped over the edges of the panel, and corner pieces c which engage adjacent ends of the pieces b and are secured in position as by rivets f inserted through the corner pieces c and the panel. The ends of the edge pieces are reduced in thickness so that the corner pieces are flush therewith and the corner pieces may be provided with a cushion g, comprising a rubber block, fitting in a hole in the corner piece and having a flange on its underside to hold it in position. A strengthening indentation d may be provided. The panel may be formed of cardboard, wood, sheet metal &c., and the edge pieces of compressed fibre, while the corner pieces are of sheet metal.
Patent GB-1521220-A (GB)
Title: Quartz crystal oscillator,arrangement and a method of making the same
IPC: H03H9/09
Filed: 1976-08-24
Abstract: 1521220 Mounting quartz crystal vibrators SEIKOSHA KK 24 Aug 1976 35253/76 Heading H1E A GT-cut quartz crystal vibrator 5 is supported from a substrate 12 by wires 8a, 8b extending parallel to the plane of the vibrator, the wires being fixed to the vibrator along a nodal line of shorter side vibrations of the rectangular vibrator, so as to reduce longer side and thickness bending vibrations. During manufacture, the vibrator 5, substrate 12 and wires 8a, 8b are located in grooves 21, 22 in a supporting frame 20, pieces of solder 19 are located at the points where the wires are to be fixed, and the solder is melted by infrared lamps 24, to connect the wires to the electrodes 6 on the vibrator and 13a, 13b on the substrate. Leads 17a, 17b are then connected between the substrate electrodes and terminals 16a, 16b in a base 15.
Patent GB-796827-A (GB)
Title: Improvements in hydraulic pit-props, lifting jacks and the like
IPC: E21D15/45
Filed: 1955-12-08
Abstract: 796,827. Pit props. SOC. D'APPLICATIONS GENERALES D'ELECTRICITE ET DE MECANIQUE S. A. G. E. M. Dec. 8, 1955 [Dec. 14, 1954; June 28, 1955], No. 35256/55. Class 20(2) A hydraulic pit prop comprising a cylinder 6 in which is displaced a tube 1 forming a reservoir for the liquid and having a piston 4 at its lower end, the pit prop being extended by passing the liquid through the piston into the cylinder has two release valves 22, 26, Fig. 4, successively operated by rod 21 from its extension to give an initially restrcted, but later fuller flow, for raod lowering. A load-limiting safety valve 38 is mounted upon the piston so as always to be submerged in the hydraulic liquid and to be inaccessible to the operator. The prop is extended by a plunger 8 working in a cylinder 7 mounted on the piston and actuated by a key applied to the sauared end of a crank spindle 10. An extended lever actuates with lost motion (to avoid accidental operation) the rod 21 coupled to plungers 24, 25, Fig. 4, which successively open the ball valves 22. 26. A snifting valve 3 is provided and in a modification, Fig. 6, (not shown), the snifting valve may be postively tilted by a ring on an extension of the link 21. The length of the prop is varied by replacing the prop head 50 attached by a bolt 53, by a head of different length. A guard tube 48 protects the lower part of the prop.
Patent GB-1432954-A (GB)
Title: Preservation of silage
IPC: A23K3/03
Filed: 1973-06-18
Abstract: 1432954 Paraformaldehyde composition PAN BRITANNICA INDUSTRIES Ltd 4 July 1973 [18 June 1973] 35378/75 Divided out of 1432953 Heading C3P A composition for preserving silage comprises paraformaldehyde, sodium nitrate, calcium formate, sugar, cereal meal, magnesite, a source of trace elements and sodium chloride. 1-100% paraformaldehyde may be used, based on the combined weight of the other ingredients. The weight ratio of paraformaldehyde to sodium nitrate may be from 1 : 1 to 50 : 1. A preferred composition includes, by wt., 17À19% sodium nitrile, 24À14% calcium formate, 9À82% sugar, 17À19% cereal meal, 5À04% magnesite, 0À04% trace elements, 26À58% sodium chloride with the above amount of paraformaldehyde.
Patent GB-1397502-A (GB)
Title: Closed loope engine control system
IPC: F02D41/34
Filed: 1973-07-25
Abstract: 1397502 Automatic control of exhaust gases BENDIXCORP 25 July 1973 [14 Sept 1972] 35417/73 Heading G3R The quantity of fuel which is periodically supplied to an internal combustion engine 10 is controlled at 50 in response to the integrated output of a comparator 40 which produces predetermined constant high or low level signals when a signal from a sensor 20 of the "quality" of combustion is above or below a predetermined limit. The sensor measures the oxygen concentration in the exhaust gas of the engine and it is explained that its output voltage will always be the same at a certain oxygen content (the "transitional" point) but the voltage at other concentrations will depend upon its age and temperature Fig. 4 (not shown). To render the system insensitive to these variations the comparator, Fig. 2 (not shown) produces an output voltage at 123 of +0.7, 0 or -0.7 according to whether the sensor voltage is below, at or above the transitional point. The comparator has a Zener controlled reference voltage and comprises an operational amplifier with positive feedback provided by diodes. Fuel injection is controlled by a circuit Fig. 3, (not shown) described in Specification 1367265 in which capacitors are charged at a regulated rate Fig. 6 (not shown). Initially this depends upon measured engine parameters, e.g. speed but when a timing signal is received to start injection the charging of the appropriate capacitor is increased by a ramp signal until its voltage reaches that set by another measured engine parameter, e.g. manifold pressure. The output of the comparator is integrated to modify the slope of the ramp signal. Thus, the amount of fuel injected depends upon the capacitor voltage at the start of injection (and this depends upon the first engine parameter) and the slope of the ramp signal, which depends upon the oxygen content of the exhaust gas.
Patent GB-899330-A (GB)
Title: Improvements in or relating to gas and other meters
IPC: G01F15/07
Filed: 1959-10-20
Abstract: 899,330. Counting-apparatus; revolutiondirection indicating. WATT, F. P. Oct. 18, 1960 [Oct. 20, 1959], No. 35430/59. Classes 106 (1) and 106 (3). A meter with counting mechanism 1 for indicating flow has a tell-tale 4 movable into a window 6 in the enclosure 2 upon reversal of motion of a catch member 3 driven in dependence on the flow. So long as the wheel 3 in the counting-train turns clockwise the toothed sector 4 is held clear of the window 6, but should it reverse long enough for the sector 4 to drop clear thereof, the sector 4 will show through the window 6 until it is reset after opening the enclosure. The tell-tale may be a body slidable in a straight path under the influence of gravity or spring pressure.
Patent GB-464940-A (GB)
Title: Apparatus for the dry purification of a stream of gas
IPC: B01D46/12
Filed: 1935-12-23
Abstract: 464,940. Filtering gases. MEUNIER, F. J. Dec. 23, 1935, No. 35510. Convention date, Dec. 21, 1934. [Class 8 (ii)] Dust-laden gas enters a filtering chamber 8, to the space between alternately reversed wedgeshaped pockets 2, and passes through the pockets to a series of compartments 11 and normally through an open valve 19 to one of the clean gas conduits 20. The separated dust falls into a hopper 26 and is removed by a conveyer. The valve 19 is connected with a scavenging valve 12 by a rod 16 having a spring 23 interposed and secured to a piston 24 working in a fixed dash-pot 25, and a rod 15 connected with lostmotion to the rod 16 and having a spring connection with the valve 12. At intervals the valves 12, 19 are lifted closing valve 19, and opening valve 12, which is opened and closed several times while the valve 19 remains substantially closed. The valves are operated by a lever 18 acted on by a cam 29 which is loose on a shaft 36 carrying fast and loose wheels 35, 34 having a different number of teeth and actuated by a common pinion, a projection 38 on one wheel engaging a notched cylinder 40 to allow the wheels to be pressed together and the clutch to engage and drive the cams at intervals.
Patent GB-627728-A (GB)
Title: Process of forming a layer of copper on copper oxide
IPC: H01L21/16
Filed: 1946-11-30
Abstract: A layer of copper is formed on copper oxide by reducing the surface oxide with an aldehyde in the presence of free alkali, and may be applied to the production of catalysts.  In an example, pumice covered with a layer of cupric oxide is so treated, the copper-coated oxide, or the copper layer resulting from the reduction of the whole of the oxide, being used as a catalyst. The reaction may be initiated or catalysed by the addition to the treating liquid of particles of copper oxide which have themselves been subject to the reduction process immediately before being added to the treating liquid, whilst the presence of dissolved copper, e.g. in the form of Fehling's solution, strengthens the copper coating produced.ALSO:A layer of copper is formed on copper oxide by reducing the surface oxide with an aldehyde in the presence of free alkali; and may be applied, e.g. by thus reducing the surface oxide on a copper plate to the production of copper oxide rectifiers or photo-electric cells; or of catalysts.  The reaction may be initiated or catalyzed by the presence in the treating liquid of particles of copper oxide which have themselves been subject to the reduction process immediately before being added to the treating liquid, whilst the presence of dissolved copper, e.g. in the form of Fehling's solution, strengthens the copper coating produced.