baber/WOPTO huggingface dataset:
Patent GB-1433732-A (GB)
Title: Hydroxyethyl starch derivatives and their production
IPC: C08B31/16
Filed: 1974-07-08
Abstract: 1433732 Hydroxyethyl starch sulphates AJINOMOTO CO Inc 8 July 1974 [12 July 1973] 30253/74 Heading C3U [Also in Division A5] A sulphate of hydroxyethyl starch in the free acid form or in the form of a metal salt or complex, e.g. of sodium, potassium, magnesium, calcium, aluminium, bismuth or iron and preferably having a molecular weight of 1000- 200,000, a D.S. of hydroxyethyl groups of 0À2 to 1À2, a sulphur content of 2-18% by weight and an intrinsic viscosity of 0À02 to 0À5 at 30 C. in water, may be obtained by reacting hydroxyethyl starch either with chlorosulphonic acid in pyridine, or with sulphuric acid; neutralizing, filtering, mixing the filtrate with a watermiscible organic solvent, separating any precipitate and, if necessary, converting the sulphate from free acid form to metal salt or complex form or vice versa.
Patent GB-505187-A (GB)
Title: An improved stiffening device for collars
IPC: A41B3/06
Filed: 1937-11-05
Abstract: 505,187. Packing and ironing collars. YAPP, H. A. Nov. 5, 1937; No. 30386. [Class 94 (i)] [Also in Group VIII] A device for stifiening collars during the concluding stages of laundering and delivery to the customer comprises a cardboard &c. strip a, tapered to a point b to facilitate insertion, and provided with a circular aperture c communicating with a slot d. The aperture can be passed over a button and the strip displaced so that the slot locks the strip in place.
Patent GB-458528-A (GB)
Title: Improvements in and relating to the truing of the cutters of woodworking machinery
IPC: B24B3/36
Filed: 1935-11-04
Abstract: 458,528. Sharpening woodworking cutters. WHITE, T., c /o White & Sons, Ltd., Paisley. Nov. 4, 1935, No. 30413. [Class 60] The rotary cutter a of a wood-planing machine, running in bearings in a frame c, is sharpened by a stone p adjustably mounted, by screws q, on an arm e, which is slidable on, and angularly adjustable around a guide rod d in the frame c. The free end of the arm carries a micrometer screw k having at its lower end a slide block m bearing on a guide n on the frame parallel to the axis of the cutter a, and the arm is moved along the guide rod, to carry the stone p along the rotating cutter a, by a handle on a rod g ; the stone is adjusted by the screw k until all of the blades are sharpened.
Patent GB-1397131-A (GB)
Title: Electrical contact material
IPC: H01H1/023
Filed: 1972-06-29
Abstract: 1397131 Switch contacts PLESSEY CO Ltd 21 June 1973 [29 June 1972] 30461/72 Heading H1N [Also in Divisions B2 and C7] An electrical contact material which has improved arc-erosion characteristics and is especially suited for contacts used in switching capacitive loads consists of a high electronic work function material which is one or more of the precious metals gold, palladium, ruthenium, platinum, rhodium or rhenium, or a silverpalladium alloy, together with up to 3 wt. per cent of a low electronic work function material which is lithium, potassium, rubidium, ceasium, barium, cadmium sulphide or sodium chloride, the latter materials may be distributed uniformly throughout the former, or may be at discrete sites on the surface of the former. In examples a mixture of gold and potassium, together with nickel as a hardener, is electrodeposited on to a nickel-iron substrate to form a layer in which potassium is distributed in the gold; in a further embodiment, this material is then boiled in saturated salt solution to provide a layer of sodium chloride crystals over the goldpotassium deposit.
Patent GB-271030-A (GB)
IPC: H04L19/00
Filed: 1926-12-01
Abstract: 271,030. Siemens &. Halske Akt.-Ges. May 17, 1926, [Convention date]. Type-printing telegraphs.-In a type-printing receiver provided with a type-wheel shaft positioned by a step-by-step rotation, the circuit of the printing magnet includes two contacts of which one is held open, while the shaft is rotating, by a lever with a retarded return movement, and the other is closed by the rotation of the shaft and is opened by the actuation of the magnet armature. The rapid withdrawal of the printing hammer prevents smudging of the record. The printing hammer 27 is carried by the armature lever 2, pivoted at 3, of a magnet 4 of which the circuit includes contacts at 16 and 26. The type-wheel shaft 1 carries a wheel 7 provided with teeth corresponding to the steps in the selection and engaged by rollers 11, 21 on levers 9, 19 under the action of springs 10, 20 respectively. As the shaft rotates the lever 9 acts on a projection 12 on a lever 14 to open the contact at 16 against a weak returning spring 13, and the contact is not closed again until the rotation ceases prior to the printing operation. The rotation also operates the lever 19 to close the contact at 26 and the lever is looked in this position by the end of a bell-crank lever 22 held by a spring 24 against a stop 25 until printing takes place. During the printing operation the bellcrank is actuated to release the lever 19 by an arm 32 carried by the lever 2.
Patent GB-478086-A (GB)
Title: Improvements in or relating to dress and like fastening means
IPC: A44B13/00
Filed: 1936-11-10
Abstract: 478,086. Buckle &c. fastenings; safety-pins. HARDY, T. Nov. 10, 1936, No. 30613. [Class 43] A dress fastener, e.g. for supporting overalls, comprises a wire frame e formed with two side arms, the outer end of one of which is formed as an eye e<1> to receive a corresponding eye on a cross-bar h, whilst the other end is formed as a spring hook f which engages an enlarged end or finger piece h<1> on the other end of the cross-bar. The fastener may be modified to co-operate with a sliding-bar buckle, or may be formed in one with a buckle, as described in Specification 478,078.
Patent GB-255710-A (GB)
Title: Improvements in or relating to electric heating devices
IPC: H05B3/30
Filed: 1925-12-04
Abstract: 255,710. Igranic Electric Co., Ltd., (Cutler-Hammer Manufacturing Co.). Dec. 4, 1925. Wire resistances, embedded and encased. - An electric resistance for heating a body, such as an electric iron, of considerably greater volume that the resistance itself, is arranged in a groove in the body and embedded in an insulating material, such as magnesia, which can be consolidated by pressure. The insulating material may be placed in the groove 2 in the body, and consolidated and formed with a groove to receive the resistances by an appropriately formed ram 5. The resistance 3 is then placed in the groove, covered with a further quantity 4 of insulating material which is then consolidated by a flat ram 10. Alteratively the resistances may be forced into the insulating material by the ram 5, which is shaped to receive it. In a further modification insulating supports may be placed in the groove 2 and the resistance laid therein, and the insulating- material then introduced and consolidated.
Patent GB-1009016-A (GB)
Title: Ethylene interpolymer compositions and processes
IPC: C08J7/048
Filed: 1962-08-10
Abstract: A water-insoluble ethylene-alkyl acrylate co-polymer, containing 0.01 to 0.5 moles of alkyl acrylate per mole of ethylene groups, which can be converted to a shelf-stable aqueous emulsion without the use of emulsifying agents, is obtained by converting sufficient of the alkyl acrylate group to a hydrophilic form.  The conversion is brought about by treatment with an excess of alkali, e.g. an alkali metal hydroxide with or without the addition of ammonia or an amine.  Other alternative conversions of acrylate groups to hydrophilic forms which are described but not specifically claimed are reactions with (a) amino aliphatic carboxylic acid, (b) ammosulfonic acid, (c) unsaturated aliphatic amine or alcohol, (d) alkyl diamine, (e) a polyether containing hydroxyl groups. Specification 900,969 is referred to.ALSO:A shelf-stable aqueous emulsion, which has been obtained without the use of an emulsifying agent, from a copolymer of ethylene and an alkyl acrylate, which has had sufficient of its acrylate groups converted to hydrophilic form e.g. by the action of an alkali (see Division C3) is used for coating paper.  An example describes the application of an emulsion to a horizontally disposed bread wrapper stock paper on the side that is coated in the conventional manner with titanium dioxide and p  acrylic binder.  A horizontal bar is pulled over the bread wrapper paper stock pushing the excess emulsion before it thereby leaving an even coating of the emulsion on the paper.  The coated paper is then heated to 105-110 DEG C. for five minutes and then cooled.  The coated papers show very low moisture vapour transmission values. Specification 900,969 is referred to.
Patent GB-805803-A (GB)
Title: Improvements in or relating to telecommunication exchange systems
Inventor: KING JOHN ARTHUR BARFIELD
IPC: H04M5/08
Filed: 1956-10-09
Abstract: 805,803. Automatic - exchange systems. STANDARD TELEPHONES & CABLES Ltd. Oct. 9, 1956, No. 30714/56. Class 40 (4). An inter-exehange line is connected to a switchboard at a manual exchange, e.g. a PBX, over contacts of a relay which is normally energized but is de-energized to connect the line to the switchboard, the arrangement allowing a connection established over the line to survive power failure at the manual exchange. Connections at the manual exchange are made over cord circuits and as shown in Fig. 1, with relay Z normally energized, ringing current of a call incoming from a public exchange operates relay A.C. which locks up and lights the exchange line lamp. By throwing a speak key KS, Figs. 2 and 3, and plugging an answer cord in the exchange line jack, A.C. is released to extinguish the lamp and relay SK is operated. With Z and SK operated LS and LA operate over contacts z1, z2; LS releasing Z to connect the line to the operator over key KS. Having ascertained the extension required the operator inserts a calling plug, Fig. 3, into the extension line jack, relay CS responding over key KS and locking up. Key KS is now released and ring/call key KRC is operated momentarily. Reply from the extension closes the line to operate LC which disconnects SK and consequently releases LA and LC leaving only LS and CS operated. Should power fail, CS falls back without affecting the connection, LS remaining up as its battery is supplied from the public exchange. Release, on the assumption of no power failure, occurs when the extension line loop is broken to release LS and re-energize Z to light the answer and call supervisory lamps when the operator may clear the connection from the switchboard. In the event of power failure, subsequent restoration of power does not re-operate CS so that the call supervisory lamp will not light, but the answer lamp will light, immediately if the connection has been released, or when the connection is released. A call from an extension line to the public exchange is set up by the operator who plugs the answer cord into the extension line jack to find requirements and plugs the answer cord into an exchange line jack. The cord circuit operates as with an incoming call except that LC, not LA, operates in series with LS and AS, not CS, locks up. In consequence release after a power failure lights the calling lamp but not the answer lamp. For a call between two extension lines both AS and CS lock up, holding SK operated with relays LA, LC, feeding the lines. By plugging a cord between an exchange line and an extension, a night service is provided without the necessity of power at the switchboard; the calling lamp indicating whether the line is idle on resumption of day service. Keys KRA to ring over the answering cord, and KD to dial over the calling cord, are provided.
Patent GB-140729-A (GB)
Title: Improvements in window or door heads for concrete-slab buildings
IPC: E04B2/30
Filed: 1919-03-10
Abstract: 140,729. Cook, W. G. March 10, 1919. Beams or lintels.-Window or door heads for hollow walls formed of inner and outer slabs are made of reinforced concrete and of triangular shape A with a gutter b to carry off condensation, and with lateral ribs a to carry the wall slabs above the window or door.
Patent GB-649129-A (GB)
Title: Improved means for locking or securing angularly-movable windscreen panels
Inventor: STEADMAN JOHN
IPC: B60J1/04
Filed: 1948-11-27
Abstract: 649,129. Stays for hinged articles. AUSTER, Ltd., and SMALL, W. W. Nov. 27, 1948, No. 30815. [Class 65(i)] A vehicle windscreen panel angularly movable about a horizontal axis is connected to a fixed frame by a stay 5 pivoted to the latter at its one end and jointed at its other end to a locking sleeve 14 slidable along and surrounding a guide bar 10 on the windscreen. The guide bar has a series of transverse ribs at one side and the sleeve is formed internally with transverse grooves at one side, the arrangement being such that the sleeve may be turned about the longitudinal axis of the guide bar to engage said grooves with the ribs on the guide bar in order to retain the windscreen in adjusted position. As shown, the guide bar is oval in cross section and is formed with ribs 13 at the ends of the oval. The bore of the sleeve is also oval and is formed with grooves at the sides of the oval. The sleeve is carried in a bearing 15 connected to the stay by a ball joint 21, and is provided with a hook-shaped handle 23 adapted to turn the sleeve and to serve as a fastening for the closed windscreen. Specification 475,339 is referred to.
Patent GB-851639-A (GB)
Title: Improved hydrocarbon oils
Inventor: FIELD ERNEST ARTHUR
IPC: C10L1/226
Filed: 1958-09-26
Abstract: Bloom in hydrofined hydrocarbon oils is inhibited by adding up to 0.01% wt. of one or more oil-soluble azo or anthraquinone dyestuffs to the oil after catalytic hydrogenation.  From 0.5 to 5 parts per million of the dyestuff per part by weight of oil may be used.  The oil may be jet fuel, hydrocarbon solvent, kerosene, white spirit, gas oil, diesel oil or heating oil.  In an example "Nubian Yellow" ("Nubian" is a Registered Trade Mark), oilsoluble Red and Williams Green are added to hydrofined gas oil.  A list of suitable dyes is given.
Patent GB-519969-A (GB)
Title: Improvements in or relating to brake shoes for vehicle brakes
IPC: F16D65/08
Filed: 1938-10-26
Abstract: 519,969. Brake shoes. BENDIX, Ltd., and ROBERTS, G. P. Oct. 26, 1938, No. 30914. [Class 103 (i)] [Also in Group XXII] In brake shoes that are built up from two sheetmetal pressings each comprising an arcuate lining-carrying part or flange a and a web b, the webs are spaced apart and are welded together by a number of depressions c or by separate distance pieces. The depressions c may be formed in one web only or may be staggered so that they are welded to flat parts of the other web. Tongues d may be pierced out of each web and be bent upwardly, as shown, so as to bring their faces into alignment with the outer face of the flange and their edges may be welded together, or a filling strip may be welded to the upper part of the flanges or a metal strip the full width of the flanges may be secured to the outer face of the flanges. In a shoe for a brake as described in Specification 499,598, the shoe-actuating bell-cranks may be mounted between the pair of webs.
Patent GB-979106-A (GB)
Title: Improved method of repairing textile belting or webbing
Inventor: FRY SYDNEY
IPC: F16G3/10
Filed: 1962-08-13
Abstract: 979,106. Repairing textile belts &c. BRITISH BELTING & ASBESTOS Ltd. Oct. 2, 1963 [Aug. 13, 1962], No. 30927/62. Heading B5A. [Also in Division B8] A hole in a web or belt of e.g. woven fibres of cotton, hair, flax, rayon, nylon or " Terylene " (Registered Trade Mark) is repaired by filling with liquid polyurethane and curing. If necessary, top and bottom plates of polypropylene or metal with a silicone release agent are used to improve the surface finish.
Patent GB-1435153-A (GB)
Title: Aromatic polyimide polyesters and polyamide separation membranes
IPC: B01D71/82
Filed: 1973-07-19
Abstract: 1435153 Semipermeable membranes E I DU PONT DE NEMOURS & CO 19 July 1973 [20 July 1972 2 Nov 1972 11 Jan 1973] 30990/75 Divided out of 1435152 Heading B5B [Also in Divisions B1 and C3] The disclosure is the same as the parent Specification except that the membranes are given a heat treatment at a temperature within the range of 150 C. up to just below the softening point. The membranes used are described in the parent Specification except in the eases of Example 11 where the polyimide from 3,4,3<SP>1</SP>,4<SP>1</SP>- diphenylhexafluoroisopropylidene tetracarboxylic dianhydride and 3,5-diaminobenzoic acid is heated in the presence of ethylene glycol to form cross links and Example 29 where the membrane used is composed of a copolyimide made from 1,5-diaminonaphthalene, 4,41-diaminodiphenyl ether and 3,4,3<SP>1</SP>,4<SP>1</SP>-diphenylhexafluoroisopropylidene tetracarboxylic dianhydride. The heat-treatment improves the selectivity of hydrogen over methane.
Patent GB-1012685-A (GB)
Title: Improvements in or relating to injection moulding machines
Inventor: MARUYAMA TADAO
IPC: B29C45/27
Filed: 1962-08-13
Abstract: 1,012,685. Injection moulding. HONDA-GIKEN KOGYO KABUSHIKI KAISHA. Aug 13, 1962, No. 31023/62. Heading B5A. In-an injection moulding machine having a mould in which a pair of die cavities 4, 4<SP>1</SP> are supplied with molten moulding material under pressure through a sprue channel 9 and a pair of runners 8, 8<SP>1</SP> perpendicular thereto, a flow divider 22 having a knife edge 23 and concave surfaces 25, 26 is provided opposite the sprue channel.
Patent GB-1123857-A (GB)
Title: Improvements relating to glass
IPC: C03C3/087
Filed: 1967-07-06
Abstract: A glass is composed, in wt. %, of: SiO2, 62-66; Na2O, 7-8.5; K2O, 6.5-9; CaO, 2-4.5; BaO, 11-14; Al2O3, 1-4; As2O3 + Sb2O3, 0.3-0.7; CeO2, 0.05-0.3; Li2O, 0-1; MgO, 0-3; PbO, 0-2.  The glass may be used in cathode ray tubes, e.g. for colour television, wherein at least the window of the tube bulb is formed of the glass.  The glass has high X-ray absorption.
Patent GB-347144-A (GB)
Title: Process for the manufacture of artificial silk
IPC: D01F2/28
Filed: 1929-10-14
Abstract: Carboxylates.-In the manufacture of artificial silk by wet spinning using stretch spinning, very fine threads are obtained by employing as the spinning bath concentrated aqueous solutions of polyhydroxy compounds which are readily soluble in or miscible with water so that viscous, oily solutions of 30-60 per cent or more can be obtained. Carbohydrate such as grape sugar, cane sugar, invert sugar, or concentrated beet juice, molasses, vinasse, sulphite waste liquor, &c. containing about 50 per cent of solid substances may be used; or polyvalent alcohols, e.g. glycol or glycerol may be employed. Solvents or swelling agents may be added to the bath, e.g. for an acetone solution of acyl cellulose the bath may consist of 50 parts sugar, 38 parts water and 12 parts acetone; or for an acetic acid solution the bath may comprise 50 parts glycerol, 25 parts water and 25 parts glacial acetic acid.  To improve lustre and ease of spinning, salts such as ammonium thiocyanate or nitrate, or calcium chloride may be added, e.g. for an acetone solution the spinning bath comprises 38 parts cane sugar, 15 parts ammonium thiocyanate, 37 parts water, and 10 parts alcohol.
Patent GB-672303-A (GB)
Title: Improvements in or relating to counter and board games
IPC: A63F3/00
Filed: 1949-12-06
Abstract: 672,303. Board games. KETTERINGHAM, D. P. July 14, 1950 [Dec. 6, 1949], No. 31228/49. Class 132 (ii). A board game representing football comprises a board marked as shown and having four goal areas differently coloured so that two separate games can be played at once by four persons each having six counters coloured to correspond to the appropriate goals and moved towards the goal from a central area in accordance with the draw of a pack of cards bearing numbers indicating the length of move or the word " Miskicks." Some of the lines on the board are heavy to bar counters from crossing them. According to the Provisional Specification, the cards may be replaced by a die.
Patent GB-428374-A (GB)
Title: Improvements in or relating to galvanic batteries
IPC: H01M50/171
Filed: 1933-11-09
Abstract: 428,374. Batteries. OLDHAM & SON, Ltd., and HOLT, H., 36, Hyde Road, Denton, near Manchester. Nov. 9, 1933, No. 31265. [Class 53] The lid of a battery is held in position by a ring 4 of celluloid or like material which is cemented or otherwise secured to the lid and the container, the ring being constructed to afford an entrance for a tool between the ring and the lid or between the ring and the container to enable the ring to be removed. The ring may be of circular cross-section and solid or hollow. Figs. 3 and 4 show alternative forms of rings. In the form shown in Fig. 4 a tool can be inserted between the ring and the lid 2, and in the form shown in Fig. 3 a tool can be inserted either between the ring and the lid or between the lid and the wall of the container.
Patent GB-446896-A (GB)
Title: Improvements in and relating to alloy compositions
IPC: C22C9/02
Filed: 1934-10-31
Abstract: A copper alloy especially for bearings or as welding rods for building up bearings, comprises 8-18 per cent of lead, 6-10 per cent of tin, 0,25-5 per cent of silicon and 0,5-6 per cent of zinc.  The silicon may be replaced by aluminium in a proportion of 0,25-8 per cent, by magnesium in a proportion of 0,25-1 per cent or wholly or in part by 0,5-3 per cent of phosphorus. In addition, the alloy may contain 0,5-3 per cent of nickel.
Patent GB-226364-A (GB)
Title: Improvements in gas purifiers
IPC: B01D53/04
Filed: 1923-12-14
Abstract: 226,364. Floyd, C. S. Dec. 14, 1923. Purifiers.-In a purifier of the kind in which gases pass through a series of superposed grids b mounted on joists, a series of solid annular abutments c are provided on which the edges of the grids rest, the gas being thus forced to pass wholly through the purifying material while leaving space for expansion of the latter. In the modification shown in Fig. 6, the abutments c are stepped.
Patent GB-617713-A (GB)
Title: Improved toy aeroplane or flying toy
IPC: A63H27/00
Filed: 1946-10-23
Abstract: 617,713. Toy aircraft. WADE, W. L. Oct. 23, 1946, No. 31433. [Class 4] A toy aircraft is launched by an elastic element permanently connected to the rear of the toy and passing through a forward guide to beyond the front of the toy and terminating in a loop or ring, for the insertion of a finger or thumb. As shown in Fig. 1, the launching elastic 4 is provided with a ring 6 at its forward end, is attached to a ring 5 at the rear of the under side of the fuselage 2, and passes through a guide ring 8 near the front of the fuselage. Fig. 3 shows an imitation jet-propelled aircraft in which the launching elastic 4b is in the form of a loop passing through the hollow fuselage 2a and secured at a point 5a at the rear thereof. The wings may be adjustable to enable the toy to perform evolutions during flight.
Patent GB-731719-A (GB)
Title: Improvements relating to thermally hardenable synthetic-resin moulding mixtures or compositions
IPC: C04B26/12
Filed: 1952-12-12
Abstract: A thermally hardenable synthetic resin composition suitable for moulding casings for electric arc-quenching devices and like objects required to have resistance to thermal shock comprises (a) a melamine-formaldehyde condensate, (b) fibrous asbestos, and (c) a mixture of silica and micronized asbestos in substantially equal proportions.  The total quantity, by weight, of (b) and (c) is substantially greater than that of (a).  A composition for moulding the casings of arc-quenching devices comprises by weight 30 per cent melamine-formaldehyde resin, 30 per cent powdered silica, 28 per cent micronized Norwegian asbestos, 11 per cent Canadian asbestos and 1 per cent calcium stearate.  The mixture is moulded at 160 DEG  C. and 280 tons per square foot for about 40 secs.