baber/WOPTO huggingface dataset:
Patent GB-972512-A (GB)
Title: Methods of making semiconductor devices
IPC: H01L21/00
Filed: 1962-11-15
Abstract: 972,512. Semi-conductor devices. WESTERN ELECTRIC CO. Inc. Nov. 15, 1962, No. 43192/62. Heading H1K. A wafer of monocrystalline semi-conductor material is provided with a silicon dioxide coating on one major face, leaving a small area uncoated, and semi-conductor material of different conductivity type is deposited on the masking coating and on to the exposed area of the wafer. In one embodiment (Fig. 3) a silicone dioxide coating 12 is formed on one surface of an N-type silicon wafer 11 and P- type silicon is then vapour deposited on the mask and exposed area of the wafer, the device merely requiring electrodes to form a diode. A further oxide mask 16 is then provided followed by vapour diffusion of an N-type impurity to form a transistor element. The transistor device provided with ring and point electrodes may then be encapsulated in a sealed envelope (Fig. 4, not shown). The substrate used may initially contain a P-N junction in which case only a single masking step is employed. Many transistors may be manufactured on a common base crystal by this method and subsequently separated out. In a further arrangement (Fig. 7) an oxide layer 72 is formed on a low resistivity (N +) silicon substrate 71 and a layer of high melting point refractory metal, e.g. tantalum or molybdenum is then sputtered on top of the oxide layer. A chemical etch through a photo-resist mask removed a portion of the metal layer and underlying oxide layer, exposing the substrate on which a layer of P- type silicon is vapour deposited, followed by subsequent diffusion of N-type phosphorus providing an emitter zone. A four-layer device employing two intermediate layers of refractory metal (Fig. 8, not shown) is described in which peripheral portions of the wafer structure are removed by etching or ultrasonic cutting for the provision of electrode contact areas. Specification 972,511 is referred to.
Patent GB-1164124-A (GB)
Title: Substituted Norbornene-2-3-Dicarboximides and their use as Raticides
Inventor: NEUMEYER JOHN LEOPOLD
IPC: C07D401/14
Filed: 1965-10-12
Abstract: 1,164,124. Pesticides containing substituted dicarboximides. RENTOKIL LABORATORIES Ltd. 10 Oct., 1966 [12 Oct., 1965], No. 43269/65. Heading A5E. [Also in Division C2C] Substituted 2, 3-dicarboximides of the general formula:-  in which R<SP>1</SP> and R<SP>3</SP> are phenyl radicals, R<SP>2</SP> and R<SP>4</SP> are pyridyl-(2)-radicals and R<SP>5</SP> is an alkynyl radical of formula -(CR 2 ) n -C#CX or an alkenyl radical of formula -(CH 2 ) n -CR= CHX in which X is a hydrogen atom or a C 1 -C 10  alkyl group, R is a hydrogen atom or a methyl or ethyl group, and n is 1-4, and their acid addition salts are used as active ingredients in raticides. The raticidal compositions may be used in the form of a solution, suspension, emulsion, paste, powder, granule, tablet or pill or may be mixed with bait, e.g. meat or grain and/or other conventional carrier materials.
Patent GB-1094173-A (GB)
Title: Gramophone
Inventor: ROBINSON PAUL BARON HENN
IPC: G11B17/04
Filed: 1963-11-02
Abstract: 1,094,173. Gramophones. DISCATRON Ltd. Jan. 27, 1965 [Nov. 2, 1963], No. 43349/63. Heading G5R. A gramophone is arranged in a casing 20 provided with a slot through which a record 23 may be inserted into resilient guide members 211. There is no turntable, and the record is driven by a rubber tyre 273 mounted on a flywheel 27, the record being supported by two guide wheels 30 and a central spigot. The pickup 34 is mounted on a carriage 33 which slides along a rod 321 so that it moves radially across the record; a resilient strip 332 bears on a second conducting rod 322 which is provided at one end with an insulating sleeve 36. The two rods 321 and 322 are mounted on a hinged carrier plate 31 which can be locked in the playing position by means of a latch 38, Figs. 4 and 9 (not shown). When a start button 402 is pressed the latch is set to move the carrier plate 31 and pick-up to the playing position, and a reject arm 35 is moved against a spring to the position shown in solid lines. A triangular plate 42 attached to carrier plate 31 presses a pin 43 into a spigot 44 (Figs. 10 and 11, not shown) which projects into the centre hole of the record to centre it and support it against the flywheel and guidewheels. The start button also operates a switch which energizes motor 24 from battery 251, and amplifier 49 from battery 252. At the end of a record the strip 332 slides off the sleeve 36 and makes contact with rod 322, thereby energizing a solenoid 39; a tail on the solenoid armature then projects into the path of a peg on the flywheel to enable the latter to release the latch and allow carrier plate 31 to return to its inoperative position. The reject arm 35 is also released and is moved by its spring to the position shown in dotted lines, thereby returning the carrier 33 to its initial position. The motor and amplifier are also switched off. The latch can be released manually at any time to stop the playing of a record by pressing the stop button 471.
Patent GB-928194-A (GB)
Title: Improvements in and relating to tubing
IPC: B21C37/26
Filed: 1960-12-16
Abstract: 928,194. Coating with metals. GRISCOM-RUSSELL CO. Dec. 16, 1960 [Dec. 30, 1959], No. 43369/60. Class 82. [Also in Group XXII] An internally or externally coated heat-exchanger &c. tube has a connection between the tube and coating which resists radial separation. The connection may comprise axial circular or helical &c. dovetail grooves 17 in the steel tube 15 in which are embedded ribs 18 forming part of the copper or aluminium coating which is applied by passing the tube through a coating pot. The coating is given a smooth surface, as by an extruding or rolling operation. The tube may have both axial and circular grooves.
Patent GB-971597-A (GB)
Title: Mouldable material,and method of moulding articles therefrom
IPC: C08K7/06
Filed: 1961-12-05
Abstract: A mouldable material comprises an unsaturated polyester resin, a copolymerizable monomer, a polymerization catalyst and a filler consisting of steel fibres derived from swarf from a surface-grinding operation.  In addition to the steel fibres, calcium carbonate may be present as well as a polymerization accelerator.  Articles such as tiles may be made from the mouldable material, e.g. a tile may be made by coating a flat glass plate with polyvinyl alcohol, then applying a gel coat consisting of a catalysed unsaturated polyester resin mixture containing an accelerator and if desired inorganic pigments and when the gel coat has cured sufficiently to produce a tacky surface, a layer of mouldable material is applied, on top of which is applied a porous backing.
Patent GB-907598-A (GB)
Title: Accelerating sections for electrons and/or ions
Inventor: CHAPMAN KENNETH REGINALD
IPC: H01J5/06
Filed: 1959-12-22
Abstract: 907,598. Particle accelerators. BIRMING- HAM, UNIVERSITY OF. Dec. 22, 1960 [Dec. 22, 1959], No. 43464/59. Class 39 (1). A D.C. particle accelerator section comprises a body 1 cast in an epoxy resin, a bore within the tube and open at at least one end, a plurality of spaced electrodes 2 supported by the body and extending into the bore, electrical conductors extending within the body and through which the electrodes are adapted for connection to a source of E.M.F., and means whereby the accelerator can be connected to further accelerators or to a source of particles so as to form part of the vacuum envelope. Grading resistors 6 and ceramic rings between the electrodes may be embedded within the resin, and the outer pair of electrodes 3, 4 provided with screw-threaded sockets. Application of a voltage between electrodes 4, 5 serves to focus the beam and the external surface of the body may be of sinusoidal form so as to increase the surface path between the electrodes at opposite ends of the accelerator.
Patent GB-916098-A (GB)
Title: Reinforced resinous compositions
IPC: C08K3/36
Filed: 1959-12-22
Abstract: A composition comprises an ethylene-vinyl acetate copolymer having admixed therewith a finely-divided silica filler.  The copolymer preferably has a vinyl acetate content of 40-85% and preferred molecular weight and viscosity ranges are also given. The copolymer may also contain a third comonomer, none being specified.  The silica fillers preferably have a particle size less than one micron and large surface areas and may contain water and other volatile ingredients and inorganic salts as impurities. The silica filler may be used in combination with other fillers such as calcium carbonate, calcium silicate, titanium dioxide, zinc oxide, clays or carbon black.  The composition may also comprise a free-radical generating organic compound and may be cured at raised temperatures.  The free-radical generating compound may be a diacyl or dialkyl peroxide, a hydroperoxide, oxygen, a peracid or perester, a chloramine compound, metal alkyl or alkyl halide, amine oxide, hydrazine or a derivative or an azine, the preferred compound being dicumyl peroxide deposited on a carrier.  The compositions may be fabricated into sports shoes, swimming fins, tubing, windscreen wipers, sidewalls, plastic interlayers for windscreens and may be particularly used for applications where its transparency is an advantage.
Patent GB-950231-A (GB)
Title: Encoder
IPC: G06F1/03
Filed: 1961-12-12
Abstract: 950, 231. Digital electric calculators; table look-up arrangements. BENDIX CORPORATION. Dec. 12, 1961 [Dec. 16, 1960], No.44370/61. Heading G4A. Digital data is permanently recorded on the surface of a rotating drum 10 in tracks 14, and read out by optical means under control of digital address signals received on lines 30 and 31 which select a particular track, and a particular sector of that track respectively. The data may be recorded on the drum surface by photographic methods, and consist of transparent bits on an opaque base, a light source inside the drum cooperating with photocells 21, 20 outside to read the data and clock pulses respectively. Photocell 21 is movable transversely by a motor 22, and a servo-system consisting of a digital position encoder 24 driven by the motor, a comparing circuit 26 and a motor control circuit 27 causes a track to be selected in accordance with the signals on lines 30; when this is effected a signal is applied over 26C to AND gate 39. A "start search" signal over line 37 sets 35 so that gate 39 is now open. Pulse width discriminator 38 produces "start of revolution" pulses on line 38a derived from a wide mark 15 on the drum, and the next such pulse is passed by 39 to set flipflop 36 and open gates 32 to enter the digits received on line 31 into a counter 33. It also clears counter 40. Clock pulses from track 11 now count down 33, and data pulses are counted into 40, until zero detector 34 resets 35 and 36 to give an 'output available' signal on line C and close gates 39, 41 and 42. It is states that the data marks recorded on each track of the drum may represent unit increments in a function of a variable represented by the distance along its surface, so that these increments are summed in 40 to give the value of the function corresponding to that of the variable supplied at 31. Figs. 2 and 3 (not shown) illustrate a modification in which the movable head 21 is replaced by a number of heads and a set of gates controlled by lines 30 to select the appropriate track.
Patent GB-1484031-A (GB)
Title: Immobilized biologically active proteins and preparation thereof
IPC: C12N11/00
Filed: 1974-10-15
Abstract: 1484031 Insolubilized proteins; modified synthetic polypeptides AJINOMOTO CO Inc 15 Oct 1974 44563/74 Headings C3H and C3R An immobilized biologically active protein (e.g. enzyme, antigen, antibody, peptide hormone, natural protein of animal or plant origin) comprises a polypeptide of repeating units of dicarboxylic acidic amino acids and, optionally, repeating units of neutral and/or basic α-amino acids, wherein at least one α- or #-carboxyl group of said acidic amino acid is converted to an acid azide group through which "the biologically-active protein" is covalently bonded. Biologically active protein excludes l-asparagine. The composite may also comprise an 'adhesive' (polyurethane, epoxy resin, polyester resin, polyvinyl chloride, polyvinyl acetate, polyvinylidene chloride, polyacrylate, polyamide). The polypeptide azide is preferably prepared by reaction of the polypeptide comprising units of the alkyl ester of the acidic amino acid with hydrazine, and treatment of the hydrazide with aqueous nitrous acid and/or nitrite solution. In the examples, the azides are prepared from poly - r - methyl - D - glutamate, copoly - (L- glutamic acid α-methyl ester/DL-methionine); the enzymes are urease, acylase, uricase; the adhesives are polyurethane diisocyanate/epichlorohydrin, 3,9 - bis - (3 - aminopropyl)- 2,4,8,10 - tetraoxospiro - [5,5] - undecane/epichlorhydrin, polyvinyl chloride. The product may be as filaments, or coated on to a substrate (glass beads, alumina particles). In comparative examples, the activities of the composites from azides of copoly-(L-methionine/L-glutamic acid r-methyl ester), carboxymethylcellulose and polymethacrylic acid with uricase are given.
Patent GB-1269510-A (GB)
Title: Improved method for the protection of glazed surfaces
Inventor: CLEMENTS KENNETH ROY
IPC: B28B11/04
Filed: 1968-09-20
Abstract: 1,269,510. Coating apparatus. PILKING- TON'S TILES Ltd. 16 July, 1969 [20 Sept., 1968], No. 44705/68. Heading B2L. Thermoplastic material is coated onto tiles or the like to protect the glazing by means of driven wheels a as the tiles are carried over the bath of thermoplastic material by means of a conveyor A'. The bath is provided with a thermostatically controlled heater element and the wheels are adjustably positioned on their driving shaft.
Patent GB-1485215-A (GB)
Title: Magnetically-controlled gas ignition and heat detection system
IPC: F23Q7/12
Filed: 1975-10-30
Abstract: 1485215 Burner ignition control A ALFRED and P ROMANELLI [trading as RAM DOMESTIC PRODUCTS CO] 30 Oct 1975 [20 Nov 1974] 44808/75 Heading F4T [Also in Division F2] A gas burner 10, Fig. 4, is provided with a gas supply valve 66 and an electrical ignition element 26, a heat sensing element 30 being positioned to receive heat from the ignition element and being of material whose Curie temperature is at least as high as the gas ignition temperature, a permanent magnet 42 being operatively connected to the valve 66 and being positioned to be attracted by the element 30 when the latter is below the Curie temperature, thereby closing the valve 66, the magnet being moved away from the element 30 by biasing means 46 when the element is above the Curie temperature, thereby opening the valve 66, so that gas is fed to the burner only after the ignition element 26 has been heated to the gas ignition temperature. The heat sensing element 30 may be a plate of a nickel/iron alloy having a Curie temperature of about 280‹ C. The magnet 42 is carried by one end of a lever 38 whose other end engages the contact arm 52 of a double-throw switch 50, so that when the magnet is attracted to the plate 30 and main switch 104 is closed the ignition element 26 is energized and a solenoid safety valve 68 is opened; when the plate 30 has been heated above its Curie temperature the magnet is released and the switch contact arm 52 is moved so that the valve 66 is opened and a resistance 102 is placed in series with both the ignition element 26 and with the solenoid 80 of the safety valve 68, the resistance 102 being such that the current in the solenoid 80 is sufficient to keep the valve 68 open but not to open it from the closed position. After ignition the plate 30 is heated by the burner flame; if this should fail the plate will cool below its Curie temperature thereby causing switch 50 to close the valve 66. In the embodiment of Fig. 3 magnet 142 is connected directly to closure member 146 of gas supply valve 140 so that the valve is open or closed depending on whether the temperature of plate 130 is above or below its Curie temperature.
Patent GB-1433179-A (GB)
Title: Degradation of hydrocarbon polymers
IPC: C08L27/00
Filed: 1973-06-29
Abstract: 1433179 Degradable styrene polymer compositions PRINCETON POLYMER LABORATORIES Inc 29 June 1973 [6 July 1972] 45021/75 Divided out of 1433178 Heading C3P Degradable styrene polymer compositions comprise as prodegradant (P) an organic carboxylic acid salt or chelate of zirconium or titanium and (S) (a) a benzoyl compound wherein R 1 -R 5  are H, halogen or alkyl, alkoxy, aryl or aryloxy groups, optionally substituted by halogen, alkyl, aryl, alkoxy or aryloxy, and R 6  is alkyl, alkoxy, aralkyl, aryl, aryloxy, aroyl or pyridyl, optionally substituted by halogen, alkyl, aryl, alkoxy or aryloxy, or (b) a benzotriazole compound wherein R 11 -R 14  are H, halogen, alkyl, aryl, alkoxy, aralkyl, aroyl or aroyloxy. Preferably the (S) component is present in larger amount than the (P) component. Examples describe compositions of polystyrene with (P) zirconium II neodecanoate or titanium IV pentanedione chelate and (S) o-dibenzoyl benzene, 4-ethoxybenzophenone, 4-chlorobenzophenone or 2- phenylacetophenone.
Patent GB-1193695-A (GB)
Title: Improvements in Lamp Envelopes
IPC: H01J61/36
Filed: 1967-10-04
Abstract: 1,193,695. Making electric components; ceramic-metal seals. GENERAL ELECTRIC CO. 4 Oct., 1967 [31 Oct., 1966], No. 45135/67. Headings B3A and B3V. A method of sealing niobium or niobiumalloy end caps 3, 3<SP>1</SP> to an alumina lamp envelope, e.g. of an alkali metal vapour discharge lamp, comprises coating the sealing surface of each cap with a composition of tungsten trioxide mixed with a minor proportion of alumina and calcia, firing the cap to sinter the coating, preferably applying a coating of alumina and calcia over the sintered coating, assembling the caps and envelope with a washer of a sealing glass between each cap and the envelope, pressing the parts together and firing them to melt the sealing washers. The top end-cap is welded or brazed to a niobium tube 6 which is crimped to an electrode 8 carrying a doublelayer tungsten wire supporting the activating material. Coating.-A suspension of tungsten trioxide with 10 weight per cent of a composition of 52À2% Al 2 O 3  and 47À8% CaO in a binder was painted on the interior of the shoulder 5 of the end cap and dried. A batch for preparation in a ball mill may consist of 90% WO 3  and equal parts of Al 2 O 3  and CaO, with an acrylic binder and ethylene glycol monoethyl ether &c. solvent. The dried caps are furnace-baked up to 1500 C. in a vacuum to sinter the coating. The sintered coating is covered by a further coating of 54 weight per cent Al 2 O 3 , 38À5% CaO and 7À5% MgO, or of 52À2% Al 2 O 3  and 47À8% CaO and sintered at 1500-1600 C. in a vacuum furnace. The further coating may be prepared by mixing the ingredients, firing to a liquid, cooling, grinding to a powder and making a painting suspension in an acrylic binder or a 1% polyox solution in water. The electrodes are then assembled and oven dried at about 100 C. For sealing the caps to the envelope, washers 16 of 7À5 weight per cent MgO, 38À5% CaO and 54% Al 2 O 3  are used, the assemblies being heated to 1300 C. in a vacuum furnace. The emission mixture is outgassed at this stage and the gases removed before the temperature is raised to 1500 C. to melt the washers. A sodium-mercury amalgam charge is then inserted in the envelope, a filling of xeon provided and the tube 6 pinched-off.
Patent GB-1480077-A (GB)
Title: Wiper blade and supporting yoke system therefor
IPC: B60S1/38
Filed: 1974-10-18
Abstract: 1480077 Windscreen wipers ROBERT BOSCH GmbH 18 Oct 1974 [20 Oct 1973] 45149/74 Heading A4F A supporting yoke system of a windscreen wiper blade is made integrally of plastics material, and comprises a main yoke 11 connected to an auxiliary yoke 12 by a connecting bridge 22 forming a plastics hinge, one of the yokes, e.g. the yoke 11 having guide attachments 23 overlapping the other yoke in the region of the bridge 22 to restrict relative pivotal movement of the yokes to a single axis only. A rib 25 extending between the attachments 23 limits relative pivoting of the yokes 11, 12.
Patent GB-1272777-A (GB)
Title: Electro-plating of electrically-conducting fibres
Inventor: BIRCH DENNIS
IPC: C25D7/00
Filed: 1968-09-23
Abstract: 1,272,777. Electro -plating fibres. INTERNATIONAL RESEARCH & DEVELOPMENT CO. Ltd. Sept.9, 1969 [Sept.23, 1968], No.45163/68. Heading C7B. Individual fibres in a bundle 9 of fibres are electro-plated by passing the bundle through one or more jets of plating electrolyte, e.g. formed by a pair of opposed nozzles 1, 2 spaced apart within chamber 3, whilst maintained at negative potential relative to the electrolyte, e.g. by contacting with cathodes 10, 11 and associating anodes 7, 8 with the nozzles in electrolyte supply ducts 4, 5. The electrolyte collecting in the chamber may be recirculated by a pump 6 and continuously filtered by units located in the ducts. The carbon fibres of an electrical current transfer brush, as described in Specification 1,191, 234, may be plated with Ag using Ag anodes and an electrolyte of Ag CN and NaCN.
Patent GB-1021375-A (GB)
Title: Improvements in vacuum servomotors
Inventor: CLAVERO JULIAN LAUDO
IPC: F15B17/00
Filed: 1963-11-15
Abstract: 1,021,375. Servomotor. TALLERES CATALUNA S.A. (TA-CA). Nov. 15, 1963, No. 45214/63. Heading F2F. A vacuum servomotor comprises a cylindrical housing 32, an inner cylinder member 31 disposed therein and forming a first chamber 34 between the piston 30 and one end of the cylinder member and a second chamber 35 between the piston and the cylindrical housing, the end of the cylinder member 31 being secured to the corresponding end of the housing 32 to form a common base through which suction may be applied to the first chamber. Chamber 34 is connected, by means not shown, to a vehicle inlet manifold and, in the inoperative position of the servomotor, the chamber 35 is connected to the chamber 8 above the diaphragm 19 of relay valve 7 by passages 33, 12, 11 and 10. Chamber 8 communicates with chamber 34 through passage 20, chamber 9 and passage 13. On braking, liquid from the master cylinder enters pump 1 at 22 and raises valve 21 to unseat valve 15 and allow air to enter chambers 8 and 35. Piston 30 then advances rightwards, the piston rod valve 27 closing the passage 24 in the piston 23 of the master cylinder 6. The outlet 25 is connected to the wheel brakes.