baber/WOPTO huggingface dataset:
Patent GB-1537298-A (GB)
Title: Method of producing a metal layer on a substrate
IPC: H01L23/52
Filed: 1976-11-09
Abstract: 1537298 Metal-coated semi-conductors ROBERT BOSCH GmbH 9 Nov 1976 [11 Nov 1975] 46527/76 Heading C7F [Also in Division H 1] A silicon semi-conductor is coated with a 3-10Ám layer of Al, followed by a 0À6-1Ám layer of Ni (both layers applied by vacuum evaporation), the layers then being annealed in a non-oxidizing atmosphere at 400-480C for 10-20 minutes.
Patent GB-997994-A (GB)
Title: Encapsulating method and the product thereof
IPC: H01L23/16
Filed: 1961-12-29
Abstract: 997,994. Welding by pressure. TEXAS INSTRUMENTS Inc. Dec. 29, 1961 [Dec. 29, 1960], No. 46763/61. Heading B3R. [Also in Division H1]  Flanges 3, 10 of a cover and header of a semiconductor capsule are solid phase bonded together over areas 29 surrounding islands 28 comprising a metal which before bonding extended as an unbroken protective layer on one of the flanges. The cover flange 3 is of or is plated with copper or aluminium. The flange 10 of an alloy consisting of 20% nickel, 17% cobalt, 0.2% manganese, balance iron is provided with a layer 23 of copper or aluminium, a layer 25 of a frangible metal, e.g. nickel or chromium and a protective layer 27 of etch-resistant metal, e.g. gold, silver or platinum. The flange 3 may have a similar protective coating. When pressure is applied the protective layer 27 bonds to the frangible layer 25 which breaks up carrying the layer 27 with it to form the islands 28 between exposed copper or aluminium surfaces which solid phase bond. Specifications 745,426 and 745,511 are referred to.
Patent GB-1201367-A (GB)
Title: Improvements in or relating to the production of pulp
Inventor: NAGLIERI ANTHONY N
IPC: D21C9/10
Filed: 1967-10-17
Abstract: 1,201,367. Bleaching pulp. HALCON INTERNATIONAL Inc. 17 Oct., 1967 [17 Oct., 1966], No. 47261/67. Heading DIP. Pulp is bleached by a process comprising treating an aqueous alkaline suspension of partially delignified pulp containing 0.1-20% by weight of partially delignified pulp and having a pH of at least 9 with molecular oxygen at a temperature of 70-200‹C and at partial pressure of oxygen of 10-1000 p.s.i. until 0.03-0.24 parts by weight of oxygen are absorbed per part by weight of dry feed pulp. The aqueous pulp suspension may be rendered alkaline by the addition of ammonium, alkali metal or alkaline earth metal hydroxides or carbonates. The molecular oxygen may be provided in the form of air, oxygen enriched air, oxygen depleted air, oxygen, substantially pure oxygen or mixtures of oxygen with other materials which do not affect the reaction, e.g. nitrogen or carbon dioxide. Partially delignified pulp produced by the sulphite, sulphate and soda processes may be bleached.
Patent GB-1082539-A (GB)
Title: Improved cage for roller or needle bearings
IPC: F16C33/46
Filed: 1964-11-20
Abstract: 1,082,539. Bearings. NADELLA SOC. ANON., and A. PITNER. Nov. 20, 1964 [Nov. 22, 1963], No. 47279/64. Heading F2A. A roller bearing cage, having a single axial split, comprises bars 3 connected by end rims 5 to form apertures 2, flanks 10 of the bars converging in a radially inward direction so that the minimum distance between the bars is less than the diameter of the rollers. Thus the rollers always project radially outwardly from the cage. The flanks are plane in the region of the pitch cylinder. The cage is bent from a punched-out strip of material.
Patent GB-1291775-A (GB)
Title: High-frequency heating apparatus
Inventor: HASHIMURA TETSUO
IPC: H05B6/74
Filed: 1970-10-06
Abstract: 1291775 Microwave ovens TOKYO SHIBAURA DENKI KK 6 Oct 1970 47387/70 Heading H5H A microwave oven structure 1, including a heating chamber 7, magnetron 8 and mode stirrer 11 on a shaft 12 driven by a motor 13, is characterized by the fan structure :of the mode stirrer 11 having at least two planar metal blades extending radially outwardly in opposite directions from a central hub part and disposed in different offset parallel horizontal planes. The distances of the two blades from the oven floor are thus unequal, as may be the distances of the blades from the plane of the hub part, see Fig. 2, (not shown). As the blades are not twisted, there is little air drag during operation. A multiple-blade fan structure is possible, for example with two fan structures 17, 18, combining to provide a four-bladed fan structure, all four blades of which rotate in different parallel horizontal planes.
Patent GB-1505978-A (GB)
Title: Alkaline primary cell
IPC: H01M4/54
Filed: 1976-11-15
Abstract: 1505978 Alkaline primary cells ESB Inc 15 Nov 1976 [15 March 1976] 47508/76 Heading H1B A cell has a silver oxide dipolarizer mix contacted with mild and strong reducing agents as described in Specification 1,505,979.
Patent GB-967319-A (GB)
Title: Compositions for the sterilisation of soil
IPC: A01N47/14
Filed: 1962-12-18
Abstract: A composition for the sterilization of soil comprises an aqueous solution of a salt of an N-alkyl dithio carbamic acid of formula <FORM:0967319/A5-A6/1> wherein R is a methyl methyl radical containing 1 or 2 carbon atoms and M is an alkali metal, alkaline earth metal or the ammonium radical stabilized with an effective amount of an alkali metal salt, an alkaline earth metal salt or the ammonium salt of trithio carbonic acid.  Lithium calcium, barium and sodium salts of trithio carbonic acid are mentioned.
Patent GB-1063292-A (GB)
Title: Improvements relating to the polymerisation of caprolactam
Inventor: LINCOLN JAMES
IPC: C08G69/20
Filed: 1962-12-19
Abstract: A process for the polymerization of #x-caprolactam comprises heating #x-caprolactam in the presence of (a) alkaline catalyst, (b) an N : N1-diacyl bis-#x-caprolactam having the general formula <FORM:1063292/C3/1> where R is the divalent hydrocarbon radical of a dicarboxylic acid HOOC-R-COOH and contains at least six carbon atoms, and (c) a polyamine containing two or more primary or secondary amine groups per molecule or a polyol containing two or more hydroxyl groups per molecule, the N : N-diacyl-bis-#x-caprolactam being used in a molar excess over the polyamine or polyol.  Specified catalysts are sodium, sodium hydroxide, potassium and potassium hydroxide. Specified N : N1 - diacyl - bis - #x - caprolactams are N : N1 - terephaloyl- and N : N1 - sebacoyl - bis - #x -caprolactam. Specified polyamines are hexamethylene diamine, piperazine, diethylene triamine, triethylene tetramine, bis-(3-aminopropyl)-amine, triamino benzene, bis-(p-aminophenyl)-amine, and polyamido amines.  Specified polyols are diethylene glycol, trimethylol propane, polyethylene glycol and polypropylene glycol.
Patent GB-1365576-A (GB)
Title: Sealing device
IPC: F16L23/16
Filed: 1972-10-19
Abstract: 1365576 Joint-making packing COMMISSAKIAT A L'ENERGIE ATOMIQUE 19 Oct 1972 [29 Oct 1971] 48241/72 Addition to 1247968 Heading F2B The seal of the parent Specification 1,247,968 is modified by providing a T-section annular spring 18, Fig. 4, instead of a rectangular one and a different form of recess 78 for housing the spring and the deformable annular packing 10, 12. The annular spring 18, Fig. 5, may be prestressed radially within the recess as by forcing it over a shoulder. When the two parts to be sealed are brought together, the packing rings 10, 12, Fig. 3, slide over one another to contract the spring 18; similarly in Fig. 4 when the two parts to be sealed are brought together the spring 18 is first contracted by movement of the spring over the shoulder and then by the packings rings housed in the recess 78. The spring may be heated or cooled before assembly to aid prestressing. A flange of the spring 18 may be both conical and cylindrical and may be retained on the shoulder by the cylindrical portion; alternatively, both the spring and shoulder have corresponding conical surfaces such that the spring is wedged in position when the two parts to be sealed are brought together. The spring may be constructed from segments, Figs. 1 and 2 (not shown) held together by dowels (81) and with the interposition of shims (83).
Patent GB-1524089-A (GB)
Title: Ayially adjustable wormwheel mounting
IPC: F16H57/022
Filed: 1976-11-23
Abstract: The worm wheel (4) in worm gear mechanisms has to be adjustable in the axial direction in order to achieve the desired tooth bearing at the tooth gearing, size and position of the tooth bearing being dependent on the torque and the direction of rotation. For this purpose, synchronising plates (7, 8) are provided in the housing (1). In order that the worm wheel need only be mounted once and the amount of time taken for the axial adjustment be reduced, the synchronising plates (7, 8) are installed between the outer races of the rolling-contact bearings (5, 6) and the supporting surfaces between the diameters in the bores of housing (1) and cover (2). These synchronising plates (7, 8) may be temporarily changed in external diameter in order to be able to mount them from outside through annular spaces between the worm-wheel shaft (3) and the housing or cover bore. <IMAGE>
Patent GB-1326039-A (GB)
Title: Hydraulic jack
IPC: F15B15/18
Filed: 1970-10-14
Abstract: 1326039 Jacks MATAIRO S A 14 Oct 1970 [15 Oct 1969 9 Oct 1970] 48869/70 Heading F1P An hydraulic jack 1 is controlled by a pump 3 which communicates therewith via valves 5, 6, and 10, a conduit 11 and a non-return valve 12, a conduit 8 connecting the pump to the smaller area side of a differential piston valve 9 having a projection for holding valve 12 open. Valves 10, 13 work in sympathy through a piece 15 such that when one is closed the other is open, these being controlled by a screw 4. To expand the jack 1, screw 4 renders valves 10, 13 open and closed respectively. Pump 3 delivers fluid to both sides of valve 9 so that it moves downwardly and valve 12 is held open by fluid pressure which thus expands the jack 1. To contract the jack the screw 4 is moved so that the valves 10, 13 are closed and open respectively. The valve 9 only experiences pressure on its lower side and thus moves upwardly to hold the valve 12 open. Fluid can thus flow from the jack via conduit 11 and valve 13 to a reservoir 14 thus contracting the jack 1. A double-acting piston-and-cylinder jack is described with reference to Fig. 3 (not shown), in which a branch conduit from the conduit 8 is connected to the opposite side of the piston from the valve 12. In a further doubleacting type a non-return valve and associated actuator are located in the branch conduit, Figs. 4 to 10 (not shown), the jack being used for the tipper cab of a lorry.
Patent GB-1408639-A (GB)
Title: Process for preparing porous body and product thereof
IPC: C08J9/28
Filed: 1972-10-25
Abstract: 1408639 Porous coated products YUASA BATTERY CO Ltd 25 Oct 1972 49131/72 Heading B2E [Also in Divisions Dl and H1] A porous body is produced by evaporating a first liquid and a second liquid miscible  with the first from a combination of said liquids and a synthetic resin, said resin being soluble in said first liquid but not in said second liquid. Preferably the evaporation is accomplished by microwave irradiation for 3 to 10 seconds. A solution of the resin in the first liquid or in a mixture of the two liquids is applied to a porous fibrous sheet material, such as a paper, sponge woven or knitted cloth or a non-woven cloth or formed into a sheet by casting into a film or plate or extruding into a non-solvent such as water. As shown a substrate 2 is passed through synthetic solution 5, squeezed by rolls 6, 6' to remove excess solution, optionally passed through water 5' and dried by passing upwards through a multicompartment dryer 7 having a microwave emitter in the top compartment. Microwave absorbtion is increased by the presence of a polar liquid. The irradiation evaporates the liquids and coagulates the resin into open or closed cells. A plasticiser produces small open cells. Example 1 describes the application of polyvinyl chloride dissolved in tetrahydrofuran/ isopropyl alcohol to a non-woven polyester fabric of 0.1 mm thickness and its coagulation by microwaves. In example 2 polystyrene dissolved in the above solvent mixture was applied to a polyvinyl chloride sheet. In example 3 dichlorodiphenyslulphone - bisphenol resin and titanium oxide in chloroform/isopropanol was applied to a polyethylene sheet. In example 4 polyvinylidine fluoride in dimethylformamide was applied to a polyethylene sheet, the sheet dipped in water and irradiated. In the second part of example 4 the same resin solution was extruded as a sheet into water or cast onto polyester film or teflon sheet, dipped in water, irradiated and removed from the film or sheet. In example 5 ABS resin in methyl ethyl ketone was applied to a 0.5 mm thick aluminium foil etched to form an oxide film, dipped in ethyl alcohol and irradiated with microwaves to yield an electrolytic condenser. In example 6 a solution of polyvinyl chloride and vinyl chloride/vinyl acetate copolymer dissolved in tetrahydrofuran/ isopropyl alcohol was applied to one side of a polyester film and microwave irradiated. The resulting white porous sheet was placed upon a sheet of newspaper and irradiated with infra red rays. The black print absorbed heat, causing the microcells of the white sheet to collapse to form transparent letters. The porosity, average cell diameter, cell count, breathability and electric resistance in sulphuric acid and potassium hydroxide of the products of examples 1 to 4 are disclosed. The products are used as filters or electrolytic diaphragms, absorbing materials and artificial leathers may also be produced. Lists of first and second liquids are given.
Patent GB-1520848-A (GB)
Title: Solid state laser array
IPC: H01S5/12
Filed: 1976-11-25
Abstract: 1520848 Semiconductor lasers INTERNATIONAL BUSINESS MACHINES CORP 25 Nov 1976 [31 Dec 1975] 49275/76 Headings H1C and H1K A planar array of individual double heterostructure semiconductor diode lasers 10-1 to 10-12 is deployed as discrete islands on a common substrate, each laser being defined by etched row and diagonal grooves 23a to 32a and 11b to 20b in a layered structure of semiconductor material, the grooves being aligned along crystallographic planes so that inclined end surfaces of the diode islands form totallyinternal-reflecting mirrors. The individual laser outputs are extracted by a diffraction grating 35 etched in the uppermost layer of each diode island, the output extending vertically up the substrate plane and passing through holes in either the upper or the lower contact electrodes. The laser structure may be formed of GaA and As in a GaAs substrate having its (100) and (100) planes parallel to its major surfaces.
Patent GB-1037110-A (GB)
Title: Process for the splicing of belts
Inventor: DEMETRE PAPAGEORGES
IPC: F16G3/10
Filed: 1963-12-13
Abstract: 1,037,110. Belt gearing. ETABLISSEMENTS THEODORE HOUBEN S.A. Dec. 13, 1963 [Dec. 17, 1962; Dec. 3, 1963], No. 49386/63. Heading F2Q. A method of splicing a belt comprises cutting the ends 4, 5 to be joined on a slant, tapering the outer surfaces 6, 7 of the belt ends to form a depression 8, Fig. 2, when they are joined by a bonding compound applied between them, applying a joining element 9, Fig. 3, which corresponds to the shape of the depression 8, and covering the external surface of the splice with a thin strip 10, Fig. 4, of synthetic adhesive material. As shown, a notched V-belt is made up of two layers 1, 2 of rubber with different characteristics and an outer layer 3 of synthetic fibre-forming polymer such as a polyamide or a polyester resin. The joining element 9 also consists of a synthetic resin material, preferably of the same kind as the outer layer, and finally all the parts adjacent the splice are polymerized under heat and pressure.
Patent GB-1534506-A (GB)
Title: Treatment of scrap
IPC: B29B17/00
Filed: 1974-11-15
Abstract: 1534506 Comminuting at low temperatures BOC INTERNATIONAL Ltd 14 Nov 1975 [15 Nov 1974] 49411/74 Heading B2A Scrap e.g. metal, rubber, or plastics is comminuted by cooling in a closed insulated chamber to the embrittlement temperature by use of a cryogenic liquid or cold gas, after which comminution is effected whilst the scrap is at least partially brittle. The scrap, as described, may be a mixed pile with magnetic separation following comminution or it may be presorted into primarily ferrous and primarily non-ferrous scrap. A system of metering with a valve 46 Fig. 3 a temperature-control solenoid-valve 42 and a time-control solenoid-valve 48 permit injection of liquid nitrogen in a chamber 30 at chosen time intervals and cools scrap in skips within the chamber 30 over a prolonged period without waste. In a second embodiment Fig. 4, not shown, liquid nitrogen is injected continuously until the temperature has fallen sufficiently. Fans equalize the temperature throughout the chamber.
Patent GB-1316346-A (GB)
Title: Photoconductive sheet
IPC: G03G5/09
Filed: 1970-10-19
Abstract: 1316346 Photoconductive sheet MINNESOTA MINING & MFG CO Ltd 19 Oct 1970 [20 Oct 1969] 49588/70 Heading H1K A photoconductive sheet comprises a base having a photoconductive coating thereon comprising photoconduotive titanium dioxide, a binder having an acid number of less than 70 and at least one organic acid or salt thereof having at least 6 carbon atoms and being present in an amount 0À1 to 15 x 10<SP>-6</SP> equivalents per square meter of photoconductor surface. In the specific embodiments a polyethylene terephthalate sheet is vapour coated with aluminium and then coated with a mixture of TiO 2 , chlorinated polyethylene and benzoic, stearic, oleic, dehydrobietic, tetrahydroabietic, 2-naphthene sulphonic or 1 nitro-anthraquinone carboxylic acid, zinc benzoate or tetrahydrorosinate, sodium stearate, potassium oleate, calcium abietate or cadmium, aluminium, magnesium or zinc rosinate. Many other binders and bases are specified. The organic acid or salt thereof acts as a decay retarder.
Patent GB-1016228-A (GB)
Title: Wheel alignment apparatus
IPC: G01B5/255
Filed: 1963-12-17
Abstract: 1,016,228. Aligning vehicle wheels. BEAR MANUFACTURING CO. Dec. 17,1963 [Dec. 18, 1962], No. 49717/63. Heading G1X. Apparatus for determining the toe-in or toe out of the front wheels 8 of a vehicle comprises an adaptor 12 fixed to each wheel 8 coaxially thereof when in position, support plates 14 depending from each adaptor 12, a bar 16 carried by the support plates 14 on each adaptor so as to be parallel to the respective wheel 8, a pair of brackets 38 mounted on each bar and a spring pressed rod 18 mounted on each bracket at right angles to the bar and adapted to be yieldingly biased against the wheel 8 to retain the bar parallel thereto. The adaptor 12 is magnetically held on the wheel spindle and may also carry a gauge 28 to check castor or camber. A measuring rod 20 is provided and has an adjustable scale 44 thereon lockable by a wing fastener (not shown). Pairs of guide pins 41 are mounted adjacent each end of each bar 16 beyond the periphery of the wheels 8 and the rod 20 is received between the pins of each pair. Each bar 16 also carries two spaced pins 34 with aligned sighting holes for sighting a target (not shown) which is adapted to be placed against the rear wheel of the vehicle. In use, with the apparatus in position a sighting is made on each target through the holes in the pins 34 and with the target in view the rods 18 are locked to the bar 16 by wing fasteners (not shown), the rods being in abutment with the wheel 8. The wheels are moved until the target readings are the same on both sides of the vehicle. The rod 20 is placed on the bars 16 either behind or in front of the wheels 8 the rod 20 having a rectangular notch or its underside at the end remote from the scale 44 to engage with one of the bars 16. The scale 44 is set with its zero mark in line with marks on top of the pins 41, and the rod 20 then moved to the position in front of or behind the wheels 8 respectively. The reading of the scale 44 enables the toe-in or toe out of the wheels 8 to be determined. The wheels 8 may be positioned on a turning radius gauge 47 if desired.
Patent GB-1080607-A (GB)
Title: Electric switches
IPC: B60R25/04
Filed: 1965-11-25
Abstract: 1,080,607. Inert switches; retractive switches. SOCIETE D'EXPLOITATION DES BREVETS NEIMAN S.A. Nov. 25, 1965 [Nov. 25, 1964], No. 50195/65. Heading H2B. A rotary ignition and starter switch for motor vehicles includes a stator 4 surrounding a cylindrical rotor 3, said stator carrying contact pins 5<SP>1</SP>, 5<SP>11</SP>, 5<SP>111</SP> and 5<SP>1111</SP> parallel to the rotor axis, and said rotor, coupled to the rotary shaft (1, Fig. 1) of a lock, carrying spring-loaded contact segments such as 8 or disc-like rollers (such as 8, Fig. 11) lying in pockets (6, 7, Fig. 2). The pins 5<SP>1</SP>, 5<SP>11</SP>, 5<SP>111</SP>, 5<SP>1111</SP> are respectively connected to the positive supply, ignition coil, starter motor, and auxiliary circuits, e.g. radio. In the " stop " position (Fig. 6), the key can be withdrawn from the lock and releases the bolt (13, Fig. 1) to engage the steering column. On inserting and turning the key counterclockwise the " garage " position (Fig. 7) is first reached, in which the key can be withdrawn without releasing the bolt into engagement with the steering column. On turning the key further, the " starting " position (Fig. 9) is reached. On releasing the key, the lock returns the rotor to the " running " position (Fig. 8). An "accessory " position (Fig. 10) is also provided. In a modification (Figs. 11-14) two live pins 5<SP>1</SP>, 5<SP>1</SP> are provided.
Patent GB-1092393-A (GB)
Title: Treatment of fungal plant disease
IPC: A01N25/04
Filed: 1964-12-10
Abstract: The incidence of fungal disease of banana plants, e.g. leaf spot disease, is reduced by the application thereto of an oil-in-water emulsion containing an emulsifier in which the oil component of the emulsion is a refined mineral oil of medium viscosity or a gas oil. The gas oil may be diesoline or marine diesel fuel and the ratio of oil to water is preferably from 2:1 to 1:2 by volume.  Examples of suitable emulsifiers include Triton, Dowfax and Agral (Trade Marks). The emulsion may contain trace elements (e.g. Mn, Zn, Mo, B, Fe or Cu), preferably in water-soluble salt form, i.e. Zn, Mn and Cu sulphates, alkali metal molybdates and borates and iron chelates, and/or major elements, e.g. Mg as MgSO4, N as urea or ammonium sulphate, K as K2SO4 or KCl and P as superphosphate.  The emulsion may be applied by aerial spraying in an amount from 0.5 to 2 imperial gallons per acre.