baber/WOPTO huggingface dataset:
Patent GB-1242401-A (GB)
Title: Transformer or reactor winding
IPC: H01F27/28
Filed: 1967-11-07
Abstract: 1,242,401. Transformer and reactor windings. BRUCE PEEBLES INDUSTRIES Ltd., and J. G. WATSON. 1 Nov., 1968 [7 Nov., 1967], No. 50617/67. Heading H1T. A disc winding for a power transformer or reactor comprises a plurality of discs 17, 18, 19 wound by means of a conductor whereby coolant duets 21 are formed within discs and not between discs. To this end, the conductor may comprise two strips 11, 12 spaced and insulated (Fig. 2), or a pair of strips spaced and separated by a spacer tape (Fig. 7B, not shown); alternatively the conductor may comprise two stacks of strips, which may be transposed over the length of the conductor, with a cooling duct therebetween (Fig. 5, not shown). The insulation between conductor strips may be a hard thin coating of insulation on individual strips. The means for forming the coolant duct may be preformed with the conductor or may be added later in the form of conventional spacers (Fig. 6, not shown). Additional insulation between discs if required may take the form of pressboard washers. The invention enables in view of the absence of coolant ducts between discs, a high overall series capacitance of the disc winding to be achieved with consequent improved impulsevoltage characteristics.
Patent GB-1236273-A (GB)
Title: Cloth folding machine
Inventor: EBISU TAKESHI
IPC: B65H45/101
Filed: 1968-10-25
Abstract: 1,236,273. Folding machine. T. EBISU. 25 Oct., 1968 [26 Oct., 1967], No. 50738/68. Heading D1S. A cloth folding machine has a cloth feeding means consisting of in the embodiment shown, rollers 12 and 20 and endless belts 25 and 19; which progressively forwards downwardly a belt-like sheet of cloth a. A cloth hanging means is horizontally disposed below the feeding means and comprises e.g. a metal plate 38 attached to the rod 36 which is supported in the hook 35 of the oscillating arm 33. A guide means which oscillates the cloth in a horizontal direction, is positioned between the cloth feeding and hanging means. In this embodiment it comprises guide levers 40 rotatably connected to arm 33 and guide plates 42. A pair of keep arms made of a flexible material project from 42 and are fitted with press plates 44 which alternately contact the cloth hanging means. Thus the cloth is folded alternately on the right and left sides of the hanging means as the hanging and guide means move in opposite directions. In another embodiment the cloth feeding means is operable either by motor or by hand. A counter device may be incorporated in this embodiment so that the motor is stopped after a prescribed length of cloth has been folded. Multiple folding may be achieved by using a series of stationary hanging bars. Half the prescribed length of cloth is folded on one bar then half on an adjacent bar. The first group of foldings is taken off its bar and rehung thereon inside out. The forward end of this portion of cloth and the rear end of the second portion are superimposed to form a double sheet which is then hung half on a third rod and half on a fourth rod. The above procedure is repeated and the final condition of the folded cloth is shown in Fig. 12C.
Patent GB-1530125-A (GB)
Title: Axle load monitoring systems
IPC: G01G3/14
Filed: 1974-11-27
Abstract: 1530125 Load monitoring system C L  INSTRUMENTS Ltd 24 Oct 1975 [27 Nov 1974] 51263/74 Heading G1N A load monitoring system for a road vehicle comprises a load monitoring device 8,9 including at least one pair of strain gauge elements for mounting on an axle of the vehicle, the strain gauge elements of the or each pair being arranged to measure strain in different directions and being connected to an amplifier 10 adjusted to emit a signal dependent upon load. The amplifier 10 is connected to a comparator circuit 13 which is arranged to activate an alarm 27, 31 should the signal received from the amplifier exceed a predetermined value. The amplifier may, as shown, be chopper stabilized by an oscillator 14 and bistable multi-vibrator 15. A pump 51 generates a D.C. voltage signal which is stabilized in a unit 17 and fed as a reference voltage, i.e. representative of maximum axle load, to the comparator circuit 13. A variable selector 18 and a preset comparator 19, e.g. representing 90% of maximum permitted load, is also provided. The various threshold signals from the comparators are fed by a sender circuit to a circuit which passes, for each threshold, a different signal to a light emitting diode 27 forming part of the alarm so as to meter the diode light a steady green, a flashing green or flashing red and an audible warning is given on a horn 31. As shown two load monitoring devices are provided for each axle, either one at each end Fig. 3 (not shown) or both in the middle Fig. 7 (not shown). The strain gauges are mounted in a bridge network Figs. 4, 8 (not shown). Distributions of load relative to the axle may be measured by providing a further monitoring device and substituting the further monitoring device for one of those existing in the bridge network by a switching process (Fig. 8). Each load monitoring device comprises a rectangular plate having the strain gauges mounted thereon the plate being mounted on an axle by spot welding Fig. 13 (not shown) or by bonding Fig. 14 (not shown). Alternatively tapered bosses may be welded on the axle and the plates rigidly connected thereto Figs. 9, 10, 11, 12, (not shown). Eccentrics or washers may be provided for making the rigid connections. The devices may be covered by moisture resistent and shock absorbent layers.
Patent GB-1129150-A (GB)
Title: Improvements relating to electric cables
Inventor: BODY RICHARD SIDNEY
IPC: H01B9/06
Filed: 1965-12-03
Abstract: 1,129,150. Cables. ASSOCIATED ELECTRICAL INDUSTRIES Ltd., and CENTRAL ELECTRICITY GENERATING BOARD. 22 Nov., 1966 [3 Dec., 1965], No. 51420/65. Heading H1A. In a high-power gas-filled cable a composite tape 3, of polythene 3B and inset conductive polythene 3A, is used to cover the edges of the outer layer of screen tapes 2 (of conductive polythene) to protect the tapes from excessive electric fields. Tapes 2 are wound around conductor 1 and layers of polythene tape 4 provide insulation. Various types of composite tape are described which include : two-ply thermoplastic film with the edges of the insulating portion rolled over the edges of the conductive portion; a simple composite strip having polythene tape bonded to a narrower conductive polythene tape (Fig. 2, not shown); a metallized tape of thermoplastic polymer (e.g. nylon, polypropylene, polycarbonate, polystyrene or polyester coated in a central portion of one face with e.g. aluminium) bonded to a wider polythene tape. The choice of insulating and screening material is governed by various thermal expansion considerations described.
Patent GB-1456642-A (GB)
Title: Composite structures
IPC: D04H3/07
Filed: 1973-11-07
Abstract: 1456642 Resin-filament grid BRITISH AIRCRAFT CORP Ltd 29 Oct 1974 [7 Nov 1973] 51600/73 Heading D1R A filament reinforced plastics composite has an open grid structure having interstices 1 bounded by wall regions 2 of resin impregnated filaments, the filaments extending continuously from one wall region to another to form junction regions 3 where they cross over, some of the filaments being displaced laterally at the junctions 3 into the interstices so that the junctions have the same depth as the wall regions. Suitable apparatus comprises a base plate 4, location rods 6 extending upwards from plate 4 and a pressure plate 5 slidably located on rods 6 shoulders 6a determine the minimum distance between plates 4, 5. Spacer pins 7 bridge the minimum gap between the plates. Their necked parts 10 lie loosely in apertures 12 in plate 5 and tapering parts 9 engage recesses 11 in plate 4. Intermediate portions 8 of the spacer pins define the interstices of the grid. As shown they are of cylindrical cross-section. Alternatively (Fig. 3a, not shown) they are of square cross-section with the corners removed. In one embodiment the resin coated filaments are laid with pins 7 in recesses 11 and plate 5 removed. Filaments of appropriate length may be laid by hand but preferably a continuous length of filament is wound about posts 6 to form the grid. Plate 5 is then pressed against the grid to ensure uniform thickness, the filaments flattening at the junctions and bulging into the interstices, and the resin cured whilst the grid is under pressure. In the embodiment illustrated, the spacer pins are permanently attached to plate 5. The grid is formed by winding a continuous filament about posts 6 in the absence of pins 7 and plate 5, the pins being inserted into the grid for the pressing and curing step.
Patent GB-1281817-A (GB)
Title: Process and agent for the detection of silver ions
IPC: G01N31/00
Filed: 1970-10-30
Abstract: 1281817 Detection of silver ions MERCK PATENT GmbH 30 Oct 1970 [4 Aug 1970] 51682/70 Heading B1X Silver ions are detected using a homogeneous mixture of cadmium sulphide, and elemental selenium, preferably impregnated into an absorbent carrier. Both the cadmium sulphide and selenium may be formed in situ with the help of a protective colloid e.g. a cellulose, polyvinyl-pyrrolidone or polyvinyl alcohols. Detection is preferably carried out in the light and at pH 3-7. The carrier may be cut into pieces and attached to films of resin, paper or metal. The mixture may be made into a. slurry with paper, and worked up on a sheet former and dried.
Patent GB-1368908-A (GB)
Title: Magnetic transducing head
IPC: G11B5/31
Filed: 1972-11-10
Abstract: 1368908 Magnetoresistive transducers INTERNATIONAL BUSINESS MACHINES CORP 10 Nov 1972 [27 Dec 1971] 51963/72 Heading G5R A head comprises a magnetoresistive element 28 adjacent a non-magnetic gap 34 dividing a magnetically permeable member 32, the element 28 being insulated by members 26, 30, which may be of SiO 2 . The element 28 may be of permalloy, as may the member 32 and be shielded by further magnetically permeable members 24, 38 of permalloy. An electrically conductive spacer 36 of non-magnetic material such as copper is inserted between members 32, 38, and the gap 34 may be constituted by the same material as the spacer 36. The head may, as shown, be made by thin film deposition on a glass substrate 22, the part outside lines AA, BB being discarded. Alternatively, the three magnetically permeable elements may be constituted by a unitary member having three legs (6, 8, 10), Fig. 1 (not shown), of permalloy or ferrite, the element (16) being secured across a gap (14) in the central leg. In recording, write currents are passed through the spacer 36. In reading, changes in the resistance of element 28 are measured, the element 28 being supplied with a bias current, and a bias magnetic field formed by passing current through the spacer 36.
Patent GB-1328854-A (GB)
Title: Low water absorption dental restorative
IPC: A61K6/083
Filed: 1970-11-02
Abstract: 1328854 Polymerizable dental materials MINNESOTA MINING & MFG CO 2 Nov 1970 [3 Nov 1969] 52071/70 Addition to 1267448 Heading C3P  Mouldable dental restorative compositions having a moisture absorption, after hardening and exposure to moisture, of less than 1% by weight, comprise an inorganic particulate filler and a liquid binder capable of being polymerized in the presence of a free radical initiator, the binder comprising a monomeric polyacrylate or polymethacryate ester of an etherified diphenol which has been etherified at each phenolic hydroxyl group by a molecule of a diol or triol, the diphenol group comprising at least two aromatic nuclei joined directly through a single carbon-carbon bond or through a divalent linking group, and the polyester being substantially free from active hydrogen atoms and devoid of peroxides. A polymerization accelerator is preferably also included, e.g. an N,N-bis- (hydroxyalkyl) - p - toluidine or -3,5 - xylidene wherein the alkyl group has 2 to 6 carbon atoms. Suitable fillers include lithium aluminium silicates, hydroxy apatite, silica or siliceous materials, alumina or aluminoferrous materials, and glasses such as borosilicate glasses; the filler may be modified to promote adhesion by the binder, e.g. by a conventional vinyl silane treatment. Small amounts of pigment may be included in the filler for visual colour or fluorescent effect. The polymerizable ester is preferably one of the formula in which M is a methacryloyl or acryloyl group, D is C 2 -C 6  alkylene, X is the nucleus of a diphenol having at least two aromatic nuclei joined as described above and having from 12-24 carbon atoms, T is the nucleus of a triprimary triol and n is an integer. The compositions can be stored in two-component kit form with the ingredients of the composition being apportioned between the two components. In examples an adduct of glycidyl methacrylate and phenyl salicylate is used as a comonomer for the binder, and benzoyl peroxide is used as polymerization initiator.
Patent GB-1129049-A (GB)
Title: Improvements in the construction of u-shaped pipe-connectors
IPC: E03C1/284
Filed: 1966-11-22
Abstract: 1,129,049. Junction pieces. POLITRAPS Ltd., and L. PIJANOWSKI. 22 Nov., 1966, No. 52190/66. Heading F2G. [Also in Division B5] A method of moulding a U-shaped pipe connector comprises placing a J-shaped core in an injection mould and injecting moulding material around the core to form a J-piece 2, 3, 4 having keying means 9 on the short end thereof, removing the J-piece from the mould, and then the core from the J-piece while the material is still soft. The moulded J-piece is then placed in a further injection mould and a further core is placed adjacent the free end of the short limb 4 of the J-piece, whereon the mould is closed and moulding material injected to form an extension piece 5 integral with the limb 4, the keying means 9 enhancing the bonding, to form the U-shaped connector. The connector may have a rim 11 to which a swivel connection 6 can be applied as a push-fit; the longer leg 2 of the connector may also have means 10 for a further extension or connections. A screwopening 7 may be formed while forming the J-piece.
Patent GB-1189790-A (GB)
Title: A Sheet of Self-Copying Paper and a Printing Ink Composition Therefor.
Inventor: MATSUDA TSUTOMU
IPC: B41M5/10
Filed: 1968-11-21
Abstract: 1,189,790. Carbon paper &c. NAIGAI INK MFG. CO. Ltd. 21 Nov., 1968, No. 55270/68. Heading D2B. [Also in Division C4] A sheet of self-copying paper carries on its under surface a pressure-transferable layer prepared by applying an ink consisting of 30-50 p.b.w. solid fatty acid, 3-10 p.b.w. solid glyceride, 2-5 p.b.w. polyvinyl butyral resin, 70-80 p.b.w. colouring agents and' 80-90 p.b.w. a mixture comprising i-propanol and toluene, and drying the ink in a countercurrent stream of air at 15-30‹C.
Patent GB-1573357-A (GB)
Title: Production of perchloromethyl mercaptan
IPC: C07B61/00
Filed: 1977-12-16
Abstract: Perchloromethyl mercaptan is prepared catalytically from chlorine and carbon disulphide. The reagents are brought into contact with     I. a carbonyl compound of the formula (A) or (B), or   II. a phosphate or a phosphite, or a mixture of these, or   III. a phosphonate or a phosphonite, or a mixture of these, in a quantity which suppresses the formation of carbon tetrachloride and sulphur monochloride. <IMAGE>
Patent GB-1218799-A (GB)
Title: Powder metallurgical process utilising steel scrap
Inventor: ALLSOP ROBERT TREVOR
IPC: B22F8/00
Filed: 1968-11-06
Abstract: 1,218,799. Sintered steel scrap. G.K.N. SCREWS & FASTENERS Ltd. Oct.30 1969 [Nov. 6, 1968], No. 52605/68. Heading C7D. A sintered body e. g. a pulley is made from turnings, flakes or chips of steel scrap which are embrittled e.g. by carburizing and quenching milled e.g. to particle size 0À05 - 0À3 mm. min. dia., cold pressed e. g. at 5-30 t. s , i., heating the compact e. g. at 800 - 1350‹ C. and then hot pressing the heated compact. Pior to embrittled treatment the scrap is crushed and the embrittled milled scrap may be heat softened e. g. at 700‹ C. in neutral atmosphere prior to cold pressing which may be isostatic pressing. Hot pressing at 40 t.s. i. carried out in a hot or cold die. The carburizing of the scrap to a minimum of 0À35%C is carried out e. g. at 920‹ C. in town gas and propane and water quenched.
Patent GB-1442100-A (GB)
Title: Hydroxybenzylmalonic acid derivatives and their use as stabilisers for synthetic polymers
IPC: C08L23/00
Filed: 1974-12-06
Abstract: 1442100 Phenolic antioxidants CIBA-GEIGY AG 6 Dec 1974 [10 Dec 1973] 52785/74 Heading C3P [Also in Division C2] Hydroxybenzyl malonic acid derivatives of the formula wherein X is oxygen or -NH-; Y is hydrogen, the radical O, (C 1 -C 12 ) alkyl; (C 3  or C 4 ) alkenyl, propargyl, benzyl or a group of the formula wherein R 6  is hydrogen, methyl or phenyl and R 7  is hydrogen or (C 1 -C 18 ) acyl; R 1  is a hydroxybenzyl group of the formula wherein R 3  and R 4  are (C 1 -C 8 ) alkyl, R 5  is hydrogen or methyl and if X is oxygen then R 2  is hydrogen or hydroxybenzyl of the above formula, or if X is -NH- then R 2  is hydrogen are stabilizers for polymers.
Patent GB-1518249-A (GB)
Title: Electrochromic displays
IPC: G02F1/163
Filed: 1976-12-20
Abstract: 1518249 Matrix displays and circuits therefor INTERNATIONAL BUSINESS MACHINES CORP 20 Dec 1976 53035/76 Addition to 1517940 Heading G5C In an electrochromic display panel, e.g. a matrix, selected display electrodes in groups, e.g. rows, are made to display by pulses chosen so that the transition time (time to zero current due to exhaustion of species) is less than that required for full display in a single pulse: a series of pulses is applied, sequentially to successive groups, in each group simultaneously to selected electrodes, as claimed in Claim 2 of Specification 1,517,940. To erase the same display, all electrodes are reverse-pulsed simultaneously, the deposit on those displayed being removed. In the display phase rows are selected in sequence by shift register 18, while for each row the columns addressed are selected by data loaded into shift register 16. Writing pulses are then generated by current sources 9, after which the row is stopped and data charged before pulsing again. To erase, lines 13 and 20 are energized to connect all rows and columns to line 11 at erase potential relative to counter electrode V.
Patent GB-1085920-A (GB)
Title: Stabilised compositions of alkyl vinyl pyridines
IPC: C07D213/06
Filed: 1964-12-31
Abstract: Polymers of improved colour are made by the polymerization or co-polymerization of a C1- 5 alkylvinyl pyridine which is stabilized by the addition thereto of a mixture of (A) 1,2-dihydroxy-4-t-butyl benzene and (B) one or more of acrylonitrile or an alkyl acrylate of the formula <FORM:1085920/C3/1> where R is hydrogen or a methyl group and R1 is an alkyl group, provided that when R1 represents an alkyl group of 2 or more carbon atoms, the amount of alkyl acrylate is at most 0.5% by wt. based on alkylvinylpyridine.  Example 29 describes the preparation of a copolymer of acrylonitrile, methyl acrylate and stabilized 2-methyl-5-vinyl pyridine, using hydrogen peroxide as catalyst and 1-thio-glycerol as an activator.ALSO:C1- 5 monoalkyl vinyl pyridines are stabilized by addition of a mixture comprising (A) 1,2-dihydroxy-4-t.-butyl benzene and (B) one or more of acrylonitrile and alkyl acrylates of the formula <FORM:1085920/C2/1> where R is hydrogen or a methyl group and R1 is an alkyl group, with the proviso that when R1 represents an alkyl group of 2 or more carbon atoms, the amount of alkyl acrylate in the composition is at most 0.5% by weight based on alkyl vinyl pyridine.  When component (B) is acrylonitrile the mixture may also contain vinyl acetate. Examples relate to the stabilization of 2-methyl-5-vinyl pyridine.
Patent GB-1127256-A (GB)
Title: Improvements in the structure of relay valve used in air brake system for automotivevehicles
IPC: B60T13/40
Filed: 1966-11-28
Abstract: 1,127,256. Fluid-pressure brakes. SANWA SEIKI MFG. CO. Ltd. 28 Nov., 1966 [11 Dec., 1965], No. 53165/66. Heading F2F. In an air brake system for automotive vehicles having a control valve 1 operative in response to actuation of a pedal 2, a relay valve 4 is disposed in a brake piping leading to the front wheels and/or rear wheels of the vehicle, the relay valve comprising a volume chamber 40 having a relatively large volume and an orifice 41 of small diameter providing communication between the volume chamber and an air feed passage through the valve, the volume chamber and the orifice being so interrelated with each other that pressure build up in the volume chamber to reach pressure equilibrium under a pressure differential therebetween of 1 kg. per sq. cm. is delayed by 0À01 to 0À05 of a second and the relay valve is operative to provide a pressure peak at the beginning of the compressed air filling operation whereby to effect a quick braking action. As shown in Fig. 1, a reservoir 16 fed by an air compressor 15, supplies compressed air via the pedaloperated control valve 1 and lines 17, 18, 21a, 21a<SP>1</SP> to the front wheel brakes cylinders 5, 5<SP>1</SP> of the vehicle through a quick-release valve 3. At the same time air is supplied via lines 20, 21b, 21b<SP>1</SP> to the rear wheel brake cylinders 6, 6<SP>1</SP> through the improved relay valve 4 shown in Fig. 3. The relay valve has a chamber 36 fed with a control fluid-pressure supply via a port 35 such that when the pressure in the line 20 is increased, a diaphragm 29 is urged downwardly to allow an exhaust valve member 34 to lift a spring-loaded feed valve member 43 off its seat 46<SP>1</SP> and allow air pressure from the reservoir 16 to pass through the inlet port 48 and into the air feed port 42 leading to the rear wheel brake cylinders 6, 6<SP>1</SP>. At the same time, air pressure is fed slowly into the variable volume chamber 40 below the diaphragm 29 at a metered rate via the orifice 41. The pressure built up in the volume chamber 40 is delayed for the required time and the diaphragm 29 is urged upwardly by the combined action of the spring 37 and the pressure in the chamber 40 to move the exhaust valve member 34 back to the position shown in Fig. 3 wherein the supply from the inlet port 48 to the air feed port 42 is cut off and the air in the brake cylinders is allowed to escape to atmosphere via passages 42, 24 and 49. An alternative embodiment is disclosed in the Specification (Fig. 2, not shown) wherein a relay valve is disposed in the brake lines leading to the front wheels in addition to the relay valve disposed in the brake lines leading to the rear wheels of the vehicle.
Patent GB-1174763-A (GB)
Title: Improvements in Structural Support Units of High Heat Transfer Resistance
Inventor: PROBERT SYDNEY DOUGLAS
IPC: F17C13/08
Filed: 1965-12-15
Abstract: 1,174,763. Liquefied gas storage containers. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 13 March, 1967 [15 Dec., 1965], No. 53336/65. Heading F4P. A dewar flask (not shown) containing helium is supported by a stack 123, Fig. 5, shown inverted of a plurality of facially contiguous stainless steel laminae members 24 each having a central load-carrying section 13, Fig. 1, and opposite wing sections 12 bent at equal angles to section 13 and arranged so that adjacent laminae are oriented at right angles and with their wings reversed; the stack so formed having load-transmitting end pads 25, 27 and when compressed by the load provides a high heat transfer resistance in the direction of its longitudinal axis. Pads 25, 27 are of stainless steel and P.T.F.E. respectively and the latter is seated in a plastic cup 28 whose lateral movement is restrained by steel compression pads retained by bolts 32 against a copper block 131 with which the cup 28 is linked by blocks 34, 36 of antimony-bismuth and bismuth-tellurium thermo-electric material and by a block 37 of electrical insulating material.