baber/WOPTO huggingface dataset:
Patent GB-780667-A (GB)
Title: Improvements in or relating to methods of and apparatus for conditioning resin impregnated fibrous mats for moulding operations
IPC: B29C53/24
Filed: 1954-12-03
Abstract: 780,667. Making corrugated resin-fibre sheets. ASHDOWNS, Ltd., and SILVERWOOD, F. W. Nov. 15, 1955 [Dec. 3, 1954], No. 35138/54. Class 87(2). [Also in Group VIII] A fibrous mat impregnated with a polyester resin is conditioned for a forming or moulding operation by progressively enveloping it, as a sandwich, between two sheets of material capable of excluding air from the mat, and simultaneously applying vibratory compressive forces to a transverse zone of the assembly immediately behind the transverse line at which the sandwich is formed, the forces being directed in a plane inclined to the general plane of the assembly at an angle such that a thrusting component is developed in the opposite direction to that of the mat entering the sandwich. The sheets applied to the surfaces, which may be of regenerated cellulose, may be transparent, and the product may be made transparent by using a resin having a refractive index approximating to that of the fibres, which may be of glass. The vibrations may be 0À005 in. in amplitude at 50 cycles per second. As shown, a fibrous mat 1 impregnated with polyester resin is carried on a regenerated cellulose sheet 2 drawn from a roll 3 along the top surface of a table 2b. A sheet 5 of regenerated cellulose from a roll 6 is laid on top of the resin-impregnated mat 1 and is pressed into close contact therewith by a vibrating blade 11 mounted on an electrical vibrator 14, the angle of tilt of which can be adjusted. The assembly is progressively compacted from the leading edge to the trailing edge which is finally severed by a guillotine knife 22. The vibrator, which may be a freely rotatable or driven roller instead of a blade, may be moved relatively to the assembly, in which case roller 6 is also mounted to travel in front of the vibrator roller or blade. The fibrous mat, continuously led from a roll and sprayed with the polyester resin, may be assembled between regenerated cellulose webs on an endless conveyer, and the assembly passed beneath a vibrator and knife to a curing oven in which is located a corrugating device consisting of two approximately horizontal sets of tubes between which the sandwich passes. The tubes in each set converge to provide for the reduction in width as the corrugations are formed while the planes of the two sets of tubes also converge.
Patent GB-411838-A (GB)
Title: Improvements in tunnel dryers for brick and tile drying
IPC: F26B21/00
Filed: 1932-12-12
Abstract: 411,838. Drying bricks and tiles. BROWN, A. E., 43, Essex Street, Strand, London. Dec. 12, 1932, No. 35149. [Class 34 (ii).] Bricks and tiles are dried on cars in tunnels, a number of tracks in parallel being provided for the cars, which are moved continuously or intermittently through the tunnels. Above each row of cars is a longitudinal flue, and below each row a similar flue, each flue having a large number of spaced openings into the tunnel, through which passes hot air or combustion gases in equal or graduated amounts, so that the drying medium is divided into a large number of streams of small volume passing vertically among the goods. Both blower and exhausting fans may be provided. For the initial stages of drying, hot pure air may be used, while hot combustion gases are then supplied to the later stages. The air may be heated by passing it over bricks to be cooled after burning. The tracks in parallel may or may not be separated by partitions. In one form, hot air and waste combustion gases are forced into transverse flues F' and F<2>, thence to the longitudinal flues K<1>, K<2>, and through the openings k. The vertical streams of air pass out through openings l into longitudinal flues L<1>, L<2> and an exhaust flue G. An arrangement of dampers for reversing the gas flow is described. In drying tiles, they may be collected into blocks of depth equal to that of bricks. For drying very tender goods humid hot air may be used at the entrance end. Specifications 23174/13, [Class 34], and 246,935, [CLass 34 (ii)], are referred to.
Patent GB-1513042-A (GB)
Title: Process for the manufacture of packaging tapes from a polypropylene moulding composition
IPC: B65D65/38
Filed: 1975-08-27
Abstract: 1513042 Polypropylene tape BASF AG 27 Aug 1975 [28 Aug 1974; 20 Dec 1974] 35314/75 Heading B5B [Also in Division C3] Packaging tapes having reduced tendency to twist and/or split are made by extruding at 170 to 320‹C to form a primary tape of crosssectional area 0À5 to 20 mm<SP>2</SP> and a ratio of thickness to width of 1:5 to 1:80 and monoaxially longitudinally stretching the primary tape at a draw ratio of 1:4 to 1:12 at a surface temperature above 60‹C but below the crystallite melting point of the polypropylene component, a moulding composition comprising (a) 70 to 90 parts by weight of a polypropylene of which less than 1 per cent is soluble in boiling xylene; (b) 30 to 10 parts by weight of a polypropylene of which greater than 99 per cent is soluble in boiling xylene, the sum of the parts of (a) and (b) being 100, the polypropylene having approximately equal intrinsic viscosities in the range 1 to 10 (in decahydronaphthalene at 130‹C) and approximately equal molecular weight distributions (by gel permeation chromotography); and (c) 0.5 to 15 per cent by weight of the polypropylenes of finely divided coal homogeneously dispersed therein. The coal may be anthracite.
Patent GB-1474917-A (GB)
Title: Monoazo disperse dyes
IPC: C09B29/08
Filed: 1973-07-25
Abstract: 1474917 Monoazo dispense dyes YORKSHIRE CHEMICALS Ltd 7 June 1974 [25 July 1973] 35333/73 Heading C4P [Also in Division C2] Novel monoazo dyes having the formula (where R<SP>1</SP> is an aryl or heterocyclic group optionally substituted by one or more Br or Cl atoms, or alkyl, alkoxy, alkylsulphonyl, alkoxycarbonyl, cyano, nitro, phenyl, thiocyanato, or trifluoroemethyl groups; R<SP>2</SP> is H or a group -R<SP>3</SP>R<SP>4</SP> where K<SP>3</SP> is alkylene and R<SP>4</SP> is H, CN, alkoxycarbonyl, cyanoethoxy or a group -OCOR<SP>8</SP>R<SP>9</SP>; R<SP>8</SP> either is O or NH and R<SP>9</SP> is an optionally substituted alkyl, aryl, cycloalkyl, or heterocyclic group, or R<SP>8</SP> is a direct link and R<SP>9</SP> is an optionally substituted aryl or heterocyclic group; R<SP>6</SP> and R<SP>7</SP> are H, Cl, Br, alkyl, alkoxy, or acylamino; R<SP>6</SP> is H, alkyl or alkoxy) are prepared by diazotization and coupling. The dyes are used for the dyeing or printing of hydrophobic fibres, particularly of cellulose acetate, polyamide, polyester, or polyacrylonitrile.
Patent GB-859348-A (GB)
Title: Resin-drug compounds
Inventor: RETY STEPHEN PAUL
IPC: A61K47/48
Filed: 1958-11-04
Abstract: A lucanthone resinate produced by reacting a cross-linked polystyrene or polymethacrylic acid ion-exchange resin containing sulphonic and carboxylic acid groups respectively, with lucanthone or a derivative thereof in an inert polar solvent gives slow and even release of the drug when acted upon by the normal contents of the gastro-intestinal tract.  The polymers are cross-linked, for example with divinyl benzene, and the lucanthone may be reacted as a hydrochloride in solution in water, or aqueous acetone or alcohol.
Patent GB-1172372-A (GB)
Title: Rotor Assemblies for Dynamo Electric Machines
Inventor: PREECE KENNETH
IPC: H01R43/08
Filed: 1966-08-08
Abstract: 1,172,372. Making commutators. JOSEPH LUCAS (INDUSTRIES) Ltd. 19 July, 1967 [8 Aug., 1966], No. 35375/66. Heading B3A. [Also in Division H2] A dynamo.electric machine has a rotor including an end-face commutator, wherein the ends of the rotor winding form part of the faces of the conductive segments of the commutator. As shown in Fig. 1, the machine has a stator structure 11 formed as described in Specification 1,092,865 and a rotor 15 having a commutator 16 which on assembly is slid axially along the rotor shaft so that winding ends 15a engage slots 18a and are soldered therein. The face 18 is then machined to provide a running surface for brushes 17. In one method of manufacturing the commutator a copper disc 21, Fig. 7, has radial grooves 22 pressed in it to a depth greater than the thickness of the disc and lugs formed on one face of the disc. A synthetic resin body is moulded on the one face of the disc and around mounting sleeve 20. Radial slots 18a, formed in the periphery of the assembly between grooves 22 and ribs 23, are then removed to separate the segments of the commutator which may then be assembled on the rotor shaft. In an alternative method a copper strip 29 is provided with U-shaped notches 26 in one edge and is bent to form an annular disc with the notches inwardly directed. Lugs are formed on one face of the disc and a body moulded on to this face and the radial slots provided as before. The periphery of the assembly is then machined to separate the segments.
Patent GB-842103-A (GB)
Title: Improvements in transistors and the manufacture thereof
IPC: H01L21/288
Filed: 1956-11-20
Abstract: 842,103. Transistors. INTERNATIONAL BUSINESS MACHINES CORPORATION. Nov. 20, 1956 [Nov. 22, 1955], No. 35502/56. Class 37. A transistor specifically designed for switching circuits is made by converting the outer portion of a wafer of first conductivity type to the opposite type by gaseous diffusion, heating the wafer in a vacuum, obtaining from the wafer a wafer with surfaces of both conductivity types exposed and etching away the portion of opposite type conductivity to make it of predetermined thickness, cutting out a small dice and soldering to the surface, of opposite type conductivity a circular ohmic connection in the centre of which an impurity dot is fused into the dice, a second impurity dot being fused into the surface of the first conductivity type. A slice is cut from a monocrystalline piece of P-type germanium with a resistivity of 2 ohms/centimetre, the major planes of the slice being parallel to low index planes of the crystal. The slice is placed in an atmosphere of 10<SP>6</SP> arsenic atoms/cc in hydrogen held at 800C for 19 hours to produce an N-type region for a depth of 0À001 inches below each surface of the slice. After diffusion the resistivity of the N-type region increases exponentially with depth from zero at the surface to a maximum at the P-N junction and decreases from the junction until the normal resistivity of the germanium is reached. Should an alloy emitter be formed as a spot on the surface of the N-type region the barrier junction will extend over the resistivity gradient and in consequences its injection efficienty will vary over the barrier. To obtain an injection efficiency constant over the barrier junction, the crystal is heated in a vacuum for an hour, after the diffusion of the arsenic impurity, so that the arsenic diffuses outwards from the surface and forms a layer of about 0 À0002 inches depth with a constant resistivity of 0À1 ohms/ centimeter. An alloy junction formed in this depth will have an injection efficiency which is constant over the junction. To from a transistor the crystal slice is cut to form P-N wafers and to obtain a precise thickness of the N-type region (base), so that it may have a specific breakdown voltage and frequency-response, the edge of a wafer is marked by an etch line to indicate the approximate position of the junction, the exact position being found by a barium titanate deposition method. The wafer is then ground down to a base thickness close to that desired and is etched away until the desired breakdown voltage as measured by probes, is obtained The wafer is then diced and a tab 5, Fig. 1, with a hollow frustro-conical projection is soldered to make an ohmic connection with the base 2 of the dice, the surface surrounded by the tab being used to form an alloy emitter 8 by pressing or firing a sphere of indium on to the surface. A larger sphere of indium forms an ohmic contact with the collector 3. Terminal connections are passed through a seal 13 so that the transistor may be sealed in a can 14 containing mesitylene.
Patent GB-463820-A (GB)
Title: Improved ventilator cowl
IPC: F23L17/02
Filed: 1935-12-23
Abstract: 463,820. Filtering gases. STEWART, F. C. Dec. 23, 1935, No. 35517. [Class 8 (ii)] [Also in Group X] A cowl for ships' and like ventilators comprises an outer tubular shell a, and an inner shell b, the space between them containing filter cells c, and the inner shell being connected to the inlet end of a ventilator shaft i. Air enters at the bottom end d<1> of inlet spaces d, and passes through the filters to outlet spaces e, from which it is drawn through apertures e<1> into the shaft i. The filters may be filled with metal wool coated with oil to retain solid particles from the air.
Patent GB-1035359-A (GB)
Title: Woven stretchable cellulosic fabrics and method of forming the same
Inventor: LEISTIKOW FREDERICK WALTER RUD
IPC: D03D15/56
Filed: 1963-09-09
Abstract: A fabric, suitable, for example, for the production of garments, sheets and mattress ticking comprises a woven fabric which is stretchable within a range of 15-50% in one direction, the yarns in this direction being essentially cellulosic and being yarns which, prior to imparting stretch properties to the fabric, were non-stretchable and had a twist multiple of 3.5 to 7, and is resiliently maintained in a normal non-stretched condition by an applied thermosetting resin or cross-linking reactant which also appreciably enhances the stretch recovery of the fabric.  The fabric may be produced by treating a fabric woven from cotton or viscose rayon in a plain or sateen weave with a contracting and swelling agent, e.g. caustic soda, the fabric having been woven with spacing between the yarns sufficient to allow the fabric to contract in one direction when treated with the contracting and swelling agent, imparting crimp to the yarns in this direction. Alternatively the fabric may be reduced in one dimension by mechanical treatment which causes the yarns of one group to be moved closer together to impart crimp to the yarns running in the opposite direction.  The caustic treatment may be combined with a scouring and bleaching process comprising treating the fabric with sodium hydroxide at a concentration of 26 DEG Tw. at 95 DEG -105 DEG F., steaming it in a J-tube at 200 DEG -220 DEG F., washing, scouring with 4% aqueous caustic soda, ageing for 1 hour in a J-tube, saturating with an alkaline peroxide bleach solution, again ageing and then washing. The fabric is then treated with the thermosetting resin or cross-linking reactant, e.g. triazone-formaldehyde, urea-formaldehyde and melamine-formaldehyde resins, epichlorohydrine formaldehyde and divinyl sulphane.  The resin bath may also contain a catalyst for the resin, a cationic softening agent and polyvinyl acetate.
Patent GB-459975-A (GB)
Title: Improvements in and relating to the impregnation of wood
IPC: B27K3/52
Filed: 1935-12-23
Abstract: 459,975. Proofing wood against fire and fungi. CHEMISCHE FABRIK GRUNAU LANDSHOFF & MEYER AKT.-GES., Gr³nau, Berlin. Dec. 23, 1935, No. 35613. Convention date, March 29. [Class 140] Sulphates and hydrochlorides of aniline or dimethylaniline are added to colourless aqueous solutions of inorganic salts for wood impregnation in order that the extent of impregnation may be ascertained by the colouring of the wood by interaction with the aniline or dimethylaniline salt. The additions may be made to fireproofing or preservative solutions of silicates, fluorides, fluosilicates, phosphates, borates, chlorides, carbonates, or ammonium salts. The Specification as open to inspection under Sect. 91 describes also the addition of watersoluble colourless amino derivatives of benzene hydrocarbons which produce a colour on reaction with wood, to the inorganic salt solutions. Aniline, dimethyl aniline, paraphenylenediamine, dimethyl - paraphenylenediamine, anthranilic acid, and aminophenol sulphonic acid are specified. This subject-matter does not appear in the Specification as accepted.
Patent GB-364765-A (GB)
Title: Improvements in or relating to adhesives
IPC: C09J7/10
Filed: 1930-11-26
Abstract: Adhesives in the form of dry films having a basis of cellulose derivatives are provided with transverse paths through the thickness of the films for the solvents and swelling agents used in softening them.  The paths may be made by perforating with needles, knives, or dies, or filling agents may be incorporated in the films and allowed to remain therein or subsequently dissolved out.  The films may be provided in addition with surface indentations or corrugations. Examples describe (1) a film of nitrocellulose containing zinc white which is subsequently dissolved out by dilute acetic acid; (2) films containing fibrous materials which act as wicks for the solvents and swelling agents; (3) cementing together two pieces of leather in the manufacture of shoes or driving belts by means of a thin perforated film of plasticized acetyl cellulose or a mixture of acetyl and nitro-cellulose; (4) a laminated material made by uniting leather or linen by means of a perforated adhesive film containing nitrocellulose and camphor.  The Specification as open to inspection under Sect. 91 (3) (a) comprises also adhesive films having superficial indentations made by pressing.  This subject-matter does not appear in the Specification as accepted.ALSO:Adhesives in the form of dry films having a basis of cellulose derivatives are provided with transverse paths through the thickness of the films for the solvents and swelling agents used in softening them.  The paths may be made by perforating with needles, knives or dies, or filling agents may be incorporated in the films and allowed to remain therein or subsequently dissolved out.  The films may be provided in addition with surface indentations or corrugations.  Examples describe (1) a film of nitrocellulose containing zinc white which is subsequently dissolved out by dilute acetic acid; (2) films containing fibrous materials which act as wicks for the solvents and swelling agents; (3) cementing together two pieces of leather in the manufacture of shoes or driving belts by means of a thin perforated film of plasticized acetyl cellulose or a mixture of acetyl- and nitro-cellulose; (4) a laminated material made by uniting leather or linen by means of a perforated adhesive film containing nitrocellulose and camphor.  The Specification as open to inspection under Sect. 91 (3) (a) comprises also adhesive films having superficial indentations made by pressing.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1272982-A (GB)
Title: Improvements in or relating to electric motors with control means
Inventor: KOBAYASHI KAZUTSUGU
IPC: H02K29/12
Filed: 1969-07-15
Abstract: 1,272,982. Electric motors. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 15 July, 1969 [15 July, 1968; 9 Oct., 1968], No. 35678/69. Heading H2A. In an external P.M. rotor electric motor controlled by the circuitry disclosed in Specification 1,262,504, the rotor position sensing apparatus is mounted inside the motor stator. In the three-phase motor shown, three primary coils 18a, 18b, 18c supplied from an oscillator 20 induce voltages in output windings 19a, 19b, 19c, the amplitude of the voltages depending on the position of a 4-pole rotor 17 secured to the P.M. rotor 5. It is stated that mutual interference between the three pairs of primary and output windings 18, 19 may be prevented by inserting short-circuiting conductors 58, Fig. 4 (not shown), inside the rotor 17 at the roots of the poles a, b, c, d.
Patent GB-326153-A (GB)
Title: Improvements in or relating to baths and structures associated therewith
IPC: E06C1/00
Filed: 1928-12-04
Abstract: 326,153. Martelli, A. Dec. 4, 1928. Baths.-A bath A is located on a waterproof platform B roofing over articles of furniture, such as chests of drawers and cupboards. Steps Dare preferably provided and vertical partitions or screens may be erected to form an enclosed bathroom.
Patent GB-409252-A (GB)
Title: Improvements in or relating to clamps
IPC: A47L9/14
Filed: 1933-12-20
Abstract: 409,252. Clips and clamps. HOOVER, Ltd., Perivale, Greenford, Middlesex.-(Hoover Co. ; North Canton, Ohio, U.S.A.) Dec. 20, 1933, No. 35816. [Class 44.] The jaws of a clamp, particularly applicable for the support of the dust bag of a suction cleaner, are closed and held closed by means of a toggle linkage. The sheet metal clamping jaws 11, 12 are connected by a hinge 13, and beads 19, 20 are formed on their outer edges. A rod 21 passes through the bead 19 and its ends are bent to form links 22, 23 of toggles, which are completed by loops 28, 29 forming part of the operating member 16. The ends 30 of the loops project into the bead 20 as shown in Fig. 5. The operating member 16 is strengthened by a plate 34, Fig. 2, which carries a spring catch 36. When the member 16 is lifted up from the position shown in Fig. 2, the jaws 11, 12 are drawn together and locked by the toggles, and the catch 36 moves over the hinge 13 as shown in Fig. 4. The upper edge of the plate 34 is cut away to form an eye 37, and the edge 39 is so shaped that it can only be disengaged from its supporting hook 17 when the eye of the hook is directed downward.
Patent GB-1211625-A (GB)
Title: Process for the production of n-carboxy anhydrides of amino acids and derivatives thereof
IPC: C07D263/44
Filed: 1968-07-29
Abstract: 1,211,625. N-Carboxy anhydrides of amino acid. KYOWA HAKKO KOGYO CO. Ltd. 29 July, 1968 [23 Aug., 1967], No. 36104/68. Heading C2C. N-Carboxy anhydrides of amino acids having the formula are prepared by reacting an amino acid, including neutral amino acids, acidic amino acid monoesters and N-substituted derivatives of basic amino acids, either optically active or reactive of the formula where R 1  represents hydrogen or an organic residue which may also be substituted, and R 2  represents hydrogen, or R 1  or R 2  together form a pyrolidine ring, or the salts thereof, with phosgene in the presence of at least one member of organic triester of phosphoric acids which are selected from the group having not more than 60 carbon atoms consisting of substituted and unsubstituted aliphatic triesters of phosphoric acid, substituted and unsubstituted aromatic triesters of phosphoric acid and substituted and unsubstituted cycloaliphatic triesters of phosphoric acid. The reaction is preferably carried out at temperatures from 50‹ C. to the refluxing temperature of the reaction solutions and may be carried out in the presence of an inert organic solvent.
Patent GB-1034348-A (GB)
Title: Improvements in or relating to warning lamp systems for motor vehicles
IPC: B60Q3/04
Filed: 1964-09-04
Abstract: 1,034,348. Lamp failure alarms. R. ROSEMOND, and C. WOODHEAD. Sept. 27, 1965 [Sept. 4, 1964], No. 36242/64. Heading G4N. A lamp failure alarm for a motor vehicle comprises a pilot lamp 5, Fig. 1 (not shown), in parallel with two parallel resistances 3 and 4 connected in series with the lamp to be monitored. If one of the resistances 3 or 4 fails, the pilot lamp will glow brighter than usual to indicate this fault and will continue to monitor the lamp.
Patent GB-854212-A (GB)
Title: Vehicle windscreen washing apparatus
Inventor: LEECH JOSEPH RONALD
IPC: B60S1/50
Filed: 1955-12-17
Abstract: Means for sterilising the water in a bottle forming part of a vehicle windscreen washing apparatus, consists of a voltaic couple which can be inserted in the bottle or combined with a pump p  contained in the bottle, the couple comprising at least one metal capable of producing ions poisonous to micro-organisms. Preferably it is in the form of wire gauze made from copper and silver, copper and nickel, copper and silver-plated copper wire or copper gauze silver plated on one side by electrodeposition or by a vacuum-vapour process.  The couple may be adapted to be combined with a pump contained in the bottle and to serve also as a filter.