baber/WOPTO huggingface dataset:
Patent GB-1158325-A (GB)
Title: Improvements in or relating to Windings for Inductive Apparatus.
Inventor: FORREST JOHN ALAN CLARKSON
IPC: H01F27/28
Filed: 1965-11-09
Abstract: 1,158,325. Windings for inductive apparatus. ENGLISH ELECTRIC CO. Ltd. 9 Nov., 1966 [9 Nov., 1965], No. 47473/65. Heading HIT. In an inductive apparatus such as a transformer in which a capacitive path is provided by an auxiliary winding as described in Specification 1,001,512, the main conductor comprises a plurality of mutually electrically insulated conductor strands C which are transposed with one another. The auxiliary conductor G, H may be a separate conductor disposed radially or axially adjacent the main conductor, or a conductor transposed with the strands of the main conductor, or it may comprise metal particles carried in a curable liquid medium applied to the main conductor, or a metal sheath extruded with the main conductor. Various combinations of main and auxiliary conductors are described, Fig. 7-17 (not shown). Each winding unit, Fig. 1, consists of two or more pancake sections A1, A2 &c. which are alternately wound from outside to  inside and vice versa. In the former case dummy turns or part turns are used, these being progressively removed as winding progresses. Various methods of interconnecting the auxiliary conductors are described.
Patent GB-1210020-A (GB)
Title: Method for use in developing latent electrostatic images or in cleaning after transfer of the developed image
IPC: G03G9/00
Filed: 1968-10-08
Abstract: 1,210,020. Removing excess developer and cleaning sensitized plates. KALLE A.G. Oct. 8, 1968 [Oct. 9, 1967], No.47574/68. Heading G2H. A latent electrostatic image after development with a fusible resin powder as toner is contacted with a mixture of iron carrier particles and powder capable of removing toner resin from non-image areas. The mixture is applied by a magnetic brush which brush can have a bias voltage applied thereto. Specified powder for removing excess toner resin are bieselguhr, magnesium trisilicate, aluminium sulphate, aluminium stearate, asbestos calcium carbonate, ferric sulphate, zinc carbonate, sodium phosphate, ethylene dicyano tetraacetic acid, zinc stearate, sodium oleate, tetrahydrophtholic anhydride, diphenyl phthalate, p-phenol sulphonic acid sodium salt, gallic acid, benzoic acid, paraacetophenetidine, zinc oxide and benzophenone tetra carboxylic dianhydride, The mixture may be applied to a transferred image and may also be used to clean electro-photographic plates, in this latter case the residual toner is neutralized brought into contact with a web cleaner in the presence of the cleaning mixture and finally brushed. The fusible resin toner may comprise as the resin colophony, copals, dammar, asphalt, colophony modified phenol, polyacrylic resin and polystyrenes, a pigment e.g. carbon black, zinc oxide, titanium dioxide, barium sulphate, red lead and dyes, natural waxes and synthetic waxes and aromatic compounds e.g. naphthols, acenaphthene, acetanilide, p-dibromo-benzene, 2, 4-diamino toluene, o-phenylene diamine, resorcinol and diphenylamine.
Patent GB-1014700-A (GB)
Title: Improvements in or relating to apparatus for dispensing beverages
Inventor: BERWICK ALBERT GEORGE
IPC: B67D3/00
Filed: 1963-12-03
Abstract: 1,014,700. Mixing apparatus. GASKELL & CHAMBERS (NON-DRIP MEASURE) Ltd. Nov. 3, 1964 [Dec. 3, 1963], No. 47668/63. Heading B1C. [Also in Divisions A4 and F2] In a device for storing and dispensing e.g. fruit juice or milk comprising a bowl 1 provided with a paddle stirrer 14 carried by a disc 12 on rods 13 depending from a collar 11, the collar has a coned aperture whereby the weight of the paddle structure engages the collar on a cone clutch carried at the top of a drive shaft 8 connected by belting to motor 10. Should the paddle jam, the clutch slips.
Patent GB-1182782-A (GB)
Title: Improvemens in or relating to Vacuum Switches
Inventor: FLURSCHEIM CEDRIC HARALD
IPC: H01H33/14
Filed: 1966-10-26
Abstract: 1,182,782. Vacuum switches. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 24 Oct., 1967 [26 Oct., 1966], No. 48071/66. Heading H1N. A vacuum switch has two pairs of contacts connected in series, the movable contacts 19, 21 being mounted on a bellows assembly 23, 25 which can be expanded to close the contacts against the action of tension springs 33, 35 by increasing the pressure of a conducting liquid 39 filling the bellows and connecting together the movable contacts. The conducting liquid may be mercury or a sodium-potassium eutectic alloy. One movable contact 19 carries a rod 27 sliding in a tube 29 attached to the other movable contact 21 and itself sliding in a tube 31 attached to the envelope of the switch so as to allow relative longitudinal movement but prevent lateral movement of the contacts. The rod and tubes may be coated with low friction, insulating material such as p.t.f.e. The bellows are of stainless steel.
Patent GB-1034389-A (GB)
Title: Process for removing sulphur-containing contaminants from chlorine
IPC: C01B7/01
Filed: 1964-11-26
Abstract: Chlorine contaminated with sulphur chlorides, oxides and oxychlorides) is purified by contacting with water adsorbed on a solid adsorbent, e.g. silica or silica gel, having a suitable surface area of at least 20 m2/g, preferably least 50 m2/g and preferably an average pore diameter larger than the molecular diameter of the sulphur compound to be removed. Alumina, activated charcoal or mixtures of these with silica are suitable adsorbents.  The chlorine is contacted with such a quantity of water that at least 4 molecules of water are present per atom of sulphur to be removed. The water content of the adsorbent should be at most 40% by weight, preferably 10% at most. Temperature may be between 10 DEG  and 60 DEG  C. The contact time may be 2-10 secs. if the chlorine is in gaseous state and 15-60 minutes if in liquid state.  The pressure may be 1-50 atmos., preferably 5-15 atmos. The processing unit may contain at least 2 adsorption columns connected in parallel.
Patent GB-1150642-A (GB)
Title: Improvements in Disc Brakes
Inventor: SCHUCHMANN GERHARD ERNST LUDWI
IPC: F16D55/00
Filed: 1965-11-15
Abstract: 1,150,642. Disc brakes. GIRLING Ltd. 10 Nov., 1966 [15 Nov., 1965], No. 48284/65. Addition to 1,075,371. Heading F2E. In a disc brake of the kind described in Specification 1,075,371, i.e. comprising a body member 10 containing an hydraulic actuator operative between a directly-operated pad 13 and a yoke 11 which is slidably mounted in grooves 20 in the body member and adapted to support an indirectly operated pad 12, an operative component of the actuator has a cylindrical bore 24 in which a ring-like insert member 23 is received, the insert member being adapted to support and locate a tongue 22 formed on the yoke. The body member 10 is bored to provide an actuator cylinder 16 which, as shown, is fixed and is open at both ends, there being two pistons 14, 15 in the bore, the former of which actuates the pad 13 while the latter is provided with the bore 24. Alternatively, the bore 24 may be provided in the body member which would then be pivotally mounted to enable it to float. The insert member 23 is of either nylon or polypropylene and is shaped to provide grooves 41 to receive the tongue 22. In addition, the corners 40 of the insert member are curved to conform to the diameter of the bore 24 while the other corners 42 are initially spaced slightly further apart than the diameter of the bore, so that when the member 23 is inserted into the bore it is compressed and fits tightly. Preferably the curved surfaces of the corners 40 are corrugated. The pads 12, 13 are mounted on backing- plates 33, 34 having lugs by which they are supported by removable pins 27 extending between a bracket 26 on the yoke and apertures in the body member 10, removal of the pins allowing the pads to be withdrawn radially. Spragging of the yoke in the grooves 20 is prevented by leaf springs (21, Fig. 2, not shown) arranged between the yoke and the lower edges of the grooves.
Patent GB-1059967-A (GB)
Title: A method of, and means for, interconnecting externally screw-threaded shafts
Inventor: WHICKER JOHN CHARLES FREDERICK
IPC: F16H25/24
Filed: 1962-12-21
Abstract: 1,059,967. Screw-and-nut gearing. JOSEPH LUCAS (INDUSTRIES) Ltd. Dec. 13, 1963 [Dec. 21, 1962], No. 48292/62. Headings F2Q and F2U. Externally threaded shafts 3, 4 are connected together to allow a nut to run freely from one to the other by forming internal threads of the same hand and pitch in blind axial bores 5, 6 in the ends of the shafts and with their crests and roots arranged in radial alignment with the external thread roots and crests respectively, and connecting the ends by an externally threaded spigot 7 inserted into the bores 5, 6. As shown, the spigot and bores are of uniform diameter, but they may be tapered. Radial locking screws 8 may be provided passing through the ends of the shafts and shaped to engage the root of the spigot thread.
Patent GB-1527097-A (GB)
Title: Solid state switching circuits
IPC: H03K17/13
Filed: 1975-11-26
Abstract: 1527097 Switching circuits for A.C. loads OMRON TATEISI ELECTRONICS CO 26 Nov 1975 [29 Nov 1974 20 June 1975 9 Oct 1975 (2)] 48664/75 Heading H2H A switching circuit comprises an input signal circuit IC arranged to produce a non-electrical signal from an input signal, a load circuit LC including terminals B1, B2 for connection to an A.C. supply and a load L, and a control circuit CC which is electrically isolated from the input circuit and responds to the non-electrical signal to cause current to flow from the supply through the load. When an input signal is applied to terminals A1, A2, a light emitting diode IND indicates receipt of the signal and a light emitting diode ED switches on a photo transistor PT. If at this instant the A.C. supply is above a zero threshold voltage, a transistor Tr is conductive to shunt the supply of gate current to thyristors SCR1, SCR2. When the A.C. voltage falls to the threshold value however, the transistor Tr is switched off so that gate current is supplied to the thyristors. The thyristors are conductive during respective half cycles of the A.C. supply to provide gate current to a triac TRC during each half cycle. Power is therefore supplied to the load L which may be a heater or a lamp such as a traffic light. The thyristors may have different gate sensitivities so that for intermediate levels of the input signal only one thyristor is conductive and the triac is only conductive during half cycles of one polarity. A variable resistor VR may therefore be adjusted to change the load current in three steps namely zero, half and full current.
Patent GB-1472435-A (GB)
Title: Multipolar thermostatic switches
IPC: H01H37/54
Filed: 1974-11-11
Abstract: 1472435 Thermal switches TEXAS INSTRUMENTS Inc 11 Nov 1974 [12 Nov 1973] 48788/74 Heading H1N A thermostat comprises a bimetallic snap-acting bowed disc 6 which, when it snaps over, moves coaxial members 8, 9 to separate movable contacts 10, 14 from fixed contacts 11, 15.
Patent GB-1393549-A (GB)
Title: Syllabic typewriters and similar machines
IPC: B41J7/90
Filed: 1972-06-19
Abstract: 1393549 Typewriters J GREMILLET 19 June 1972 [21 June 1971] 48845/74 Divided out of 1393548 Heading B6F A keyboard operated device comprises keys which can be depressed simultaneously and keys which each control simultaneously several characters belonging to Groups I-V each corresponding to a different printing or recording point, the keys operating electric switches and generating codes which are simultaneously recorded in a storage unit, e.g. an endless magnetic tape 4002. Thus codes representing up to five characters may be recorded simultaneously, stored in a loop and read sequentially at 4007. A continuous punch tape may be employed, entering at 4016 and leaving at 4017.
Patent GB-1500599-A (GB)
Title: Compositions for imparting fire retardance to wood
IPC: C08G12/34
Filed: 1975-11-28
Abstract: 1500599 Fire retardancy KOPPERS CO INC 28 Nov 1975 49113/75 Heading DIP [Also in Division C3] Wood may be treated to render it fireretardant by impregnation with an aqueous solution comprising monomethylol dicyandiamide, melamine and an oxy-acid of phosphorus, the monomethylol dicyandiamide and melamine being in a molar ratio of 11.5:1 to 3:1 respectively, and curing the impregnated wood preferably by heating to a temperature of from 60 to 110‹C Phosphoric acid is the exemplified oxy-acid of phosphorus.
Patent GB-1564647-A (GB)
Title: Anthraquinone reactive dyestuffs
IPC: C09B62/06
Filed: 1977-11-28
Abstract: Reactive anthraquinone dyes of the formula <IMAGE> where the substituents are each as defined in Claim 1 are obtained when a compound of the formula <IMAGE> is reacted with cyanuric fluoride and the resulting reactive product is then reacted with a compound that donates the radical X. The dyes obtained can be used for dyeing and printing hydroxyl-containing and nitrogen-containing materials.
Patent GB-1533183-A (GB)
Title: Method of preventing seizure by icing in gate valves and gate valves embodying the same
IPC: F16K49/00
Filed: 1976-11-26
Abstract: 1533183 Valve SOC NATIONALE INDUSTRIELLE AEROSPATIALE 26 Nov 1976 [17 Dec 1975] 49457/76 Heading F2V A gate valve adapted to be mounted in a conduit 4 comprises a two part housing 2, 3 defining a chamber 12 within which the gate 5 moves to open or close the conduit; part of the fluid flowing through the conduit is diverted into the chamber 12 and then returned to the main. flow via a system of conduits 22, 26, 27, 25, so as to prevent freezing in the gate valve. The inlet or inlets 20 to the conduit 22 is formed in the upstream surface of a protrusion 17 extending into the main bore 30 of the valve, while the outlet 24 is formed in the downstream surface of a protrusion 18 extending into the main bore 30, both protrusions being positioned upstream of the gate 5. The inlet 20 and outlet 24 may be formed in a single protrusion.
Patent GB-1359632-A (GB)
Title: Process for producing citric acid by fermentation
IPC: C12P7/48
Filed: 1972-03-16
Abstract: 1359632 Citric acid by fermenting Candida subtropicalis AJINOMOTO CO Inc 16 March 1972 [31 March 1971] 49645/73 Divided out of 1359097 Heading C2C Citric acid is made by aerobically culturing Candida subtropicalis in an aqueous medium containing a source of assimilable carbon.
Patent GB-1025917-A (GB)
Title: Polysiloxysilpropylene derivatives and production thereof
IPC: C08G77/50
Filed: 1964-12-07
Abstract: A silpropylene-siloxane polymer comprising units of the formula <FORM:1025917/C3/1> and units of the <FORM:1025917/C3/2> wherein each R is hydrocarbon radical, R1 is -CN, -COOH, -CONH2, -COC1 or COO-alkyl, R11 is H or R1, and m is 0 to 3 and has an average value of 1 to 2.5, can be made (1) by reacting a compound of the formula <FORM:1025917/C3/3> with a siloxane of the average general formula <FORM:1025917/C3/4> (n=1 to 2.5) in the presence of an acid equilibration catalyst, (2) by reacting a mixture of compound (A) and one or more organochlorosilanes (RnSiCl4-n) with water in amount stoichiometrically equivalent to the Cl content of the silane reactant, or (3) by reacting compound (A) with HCl in the presence of thionyl chloride to yield. ClSi(CH3)2-CH2-C(R1)(R11)-CH2 -Si(CH3)2Cl and cohydrolysing this compound with one or more organochlorosilanes. Examples are given.  Uses: As intermediates for modifying synthetic resins; copolymers containing nitrile groups can be incorporated in siloxane elastomers, or may be hydrogenated to yield the corresponding amino-compounds, and copolymers containing carboxyl groups are suitable as emulsifiers.
Patent GB-1313440-A (GB)
Title: Production of 2-methylenepropane-diol-1,3
IPC: C07C33/035
Filed: 1971-10-27
Abstract: 1313440 2-Methylenepropane-1,3-diol from its diacetate KNAPSACK AG 27 Oct 1971 [9 Nov 1970] 49914/71 Heading C2C 2-Methylenepropane-1,3-diol is made by heating its diacetate with a C 1-3  alkanol in the presence of an alkali metal carbonate, cyanide, alkoxide or hydroxide and separating, by distillation, the desired diol from the alkyl acetate formed by ester-interchange.
Patent GB-1081179-A (GB)
Title: Pressurised aerosol dispensing containers
IPC: C09K3/30
Filed: 1965-11-24
Abstract: A pressurized dispensing container is charged with propellant comprising a saturated solution of carbon dioxide, nitrous oxide or nitrogen in a liquefied chlorofluorinated saturated aliphatic hydrocarbon.  The liquid to be sprayed may be an organic liquid, of which numerous examples are given or an aqueous liquid.  The liquid to be sprayed is introduced into the container which is then closed by a valved closure, after which the propellant is introduced through the valve.
Patent GB-1079920-A (GB)
Title: Improvements in or relating to ingot furnaces
IPC: B65D83/14
Filed: 1964-12-09
Abstract: 1,079,920. Continuous casting - machines. COMMISSARIAT A L'ENERGIE ATOMIQUE. Dec. 9, 1964 [Dec. 9, 1963], No. 50180/64. Heading B3F. [Also in Divisions F4 and G3] The invention relates to a furnace of the type disclosed in the embodiment of Fig. 1 of Specification 1,079,919 in which the motor 18 for displacing the starter head 6 for the continuous casting 5 of uranium carbide is controlled by means sensitive to variations in the level of the bath in the mould 1 acting to maintain said level substantially constant (see Division G3). The means for measuring the variation in bath level comprises a thermocouple located in the cone of light from mould 1 at a fixed level above it, acting in opposition to a second thermocouple located outside the cone of light to compensate for temperature variations within the vacuum enclosure 12 and/or mould.
Patent GB-1129000-A (GB)
Title: Improvements in dies
IPC: B21D49/00
Filed: 1966-11-09
Abstract: 1,129,000. Covering extruded sections. L. O'MALLEY, J. COWDROY, and R. VANZANTEN. 9 Nov., 1966 [15 Nov., 1965; 13 July, 1966], No. 50304/66. Headings B3E and B3P. A die for making extended lengths of cmoposite metal sections has an entry end and an exit end, the entry end being adapted to receive an inner metal section and sheet metal to cover with a close fit part or all of the inner section as the inner section and sheet metal are drawn together through the die, the entry end being similar in shape but larger in size than the composite section, the exit end being identical in size and shape with the composite section, and there being one or more rollers mounted on and in the die to engage an adjacent part of the sheet metal and swage it against an adjacent part of the metal section with a close fit. An extruded aluminium section 4 is covered on two faces 5 and 6 by stainless steel sheeting 7 and 8. The sheets are fed past rollers which apply lubricant to the outside of the sheets and then enter the flared end 19 of the die. To fold the sheets into the side recesses of the section there are 45-degree rollers 24 mounted inside the die and followed by parallel rollers 26 which complete the bending of the edge of the sheets.
Patent GB-1109101-A (GB)
Title: Improvements in or relating to nuclear reactors
Inventor: DENT KENNETH HENRY
IPC: G21C17/04
Filed: 1964-12-10
Abstract: 1,109,101. Nuclear reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 23 Nov., 1965 [10 Dec., 1964], No. 50345/64. Heading G6C. Fuel element failure in a pressurized gascooled nuclear reactor using ceramic fuel is tested for by monitoring at 14 the bulk outlet gas from the reactor core and when excessive fission products are detected, manually connecting a conduit from point 7 to the outlet of each fuel element channel in turn, and monitoring at 15 the coolant gas from each channel to identify any one containing a failed fuel element. The arrangement shown includes two reactor change faces 1, 2 and flexible hoses 5, 6 which may be connected from points 7, 8 to any of the tubes 3, 4 which are in communication with the outlets of the coolant gas channels. The gas flows via conduit 12 to indicator and recorder 15. The flexible hoses may be replaced by movable assemblies of telescopic tubes. Additional conduits 27, 34 and cross-over valve 28, together with second point 7<SP>1</SP> and flexible hose 5<SP>1</SP>, enable the conduits to be purged while another channel is being tested.
Patent GB-1351365-A (GB)
Title: Well safety valve
IPC: E21B34/08
Filed: 1971-10-29
Abstract: 1351365 Wells &c CAMCO INC 29 Oct 1971 [11 Jan 1971] 50457/71 Heading E1F [Also in Division F2] A safety valve for closing a well tubing on abnormal pressure decrease comprises a ball closure 28 supported on a piston 30, which is biassed upwards by fluid-pressure in a closedend cylinder 34, and which is held in the position shown by the normal pressure of the fluid flowing from openings 26 to outlet 22. Piston 30 moves the ball 28 upwards into contact with seat 24 on abnormal pressure decrease. Sleeve 58 biassed downwards by spring 60 protects the seat from abrasive particles in the fluid flow. Effective area of piston 30 may be changed by moving seal 36 from groove 50 to groove 52 surrounding a smaller diameter portion of the piston. Fluid pressure loading may be supplemented by a spring 40 in chamber 34.
Patent GB-1406575-A (GB)
Title: Particle detection apparatus
IPC: G01N15/02
Filed: 1973-10-31
Abstract: 1406575 Image analyzing MINNESOTA MINING & MFG CO 31 Oct 1973 [1 Nov 1972] 50643/73 Heading G1A [Also in Division G4] A line scanning image analyzing system employs a shift register to store intercepts for one line period, the shift register being driven by a clock pulse generator which is triggered to deliver a selected number of clock pulses on receipt of a synchronizing pulse at the beginning of each line scan; in known fashion the stored signals are compared with current signals one line period later and a counter is incremented only once for each particle in the image. The image field is advanced by a motor 27 and scanned by an oscillating mirror 93 co-operating with a photo-detector 15. The signals from 15 are amplified, squared up and subjected to threshold circuits at 17, 18; the resulting pulses are increased in length and then applied to the shift register 35 and direct to an anti-coincidence circuit 48 to which is also applied the output of the shift register. At the beginning of each scan of mirror 93 a bi-stable 33 is set to release an oscillator 31 which applies stepping pulses to the register 35; when it has delivered a number of pulses equal to the number of stages of the register 35 the oscillator is inhibited by resetting of bi-stable 33. The oscillator is adjustable so the last pulse is applied to the register before the end of the scan. A bi-stable 51 is set by the leading edge of the intercept pulse from 19 and reset by the delayed pulse from the shift register. If it is not reset, indicating a new particle, a pulse generated at the trailing edge of the intercept pulse increments a counter 60. To ensure that particles of greatly varying density are counted only once the thresholds 17, 18 are lowered by a feedback circuit 20 once a particle has been identified. Since the scan is sinusoidal and therefore non-linear a compensating control is applied to the threshold circuit 18 by the mioror drive 22. Full logic circuitry is described, Figs. 4, 5, 6 (not shown).