baber/WOPTO huggingface dataset:
Patent GB-1060638-A (GB)
Title: Improvements in on load switching devices
IPC: G05F1/20
Filed: 1963-12-03
Abstract: 1,060,638. Transformer arrangements. COMPAGNIE GENERALE D'ELECTRICITE. Dec. 3, 1963 [Sept. 6, 1963], No. 47775/63. Heading H2H. [Also in Division H1] An on load switching device such as to effect the transfer of load from one tap to another on a transformer comprises a switching impedance connected to each tap arranged so that the impedances are switched to the reversed state simultaneously by a pulse from a device for detecting the zero point of the load current. In Fig. 1, one tap 5 may be connected to a load 13 through reverse parallel connected thyristors 10, 11. From a voltage detecting circuit, a contact 18 is closed when the voltage is to be raised hence passing a signal from a zero current detector 12 to a bi-stable circuit 15, changing over its state so that output voltages at terminals 33, 34 are reversed thus extinguishing thyristors 10, 11 through control voltage generators 20, and firing thyristors 8, 9. To prevent the thyristors 8, 11 or 9, 10 firing simultaneously and causing a short circuit the terminal voltages 33, 34 are fed through delay circuits 23, 24 having different time delays in the rise and fall direction so that one thyristor will block before the other fires.
Patent GB-960560-A (GB)
Title: Filter cartridge
IPC: B01D29/01
Filed: 1962-12-19
Abstract: A pleated filter paper has activated carbon, fuller's earth, bauxite, diatomaceous earth, magnesium oxide, silica gel, alumina or molecular sieve non-uniformly dispersed throughout the paper, the concentration being preferably smaller towards the surfaces of the paper.  In one embodiment, a strip of paper containing equal proportions of cotton linters and activated charcoal is pleated and formed into an annulus for insertion into a filter cartridge in a dry-cleaning machine.  The paper may be made by a Fourdrinier process in which a water carbon slurry is introduced over the surface of a partially-settled paper fibre mat.  A water-soluble phenolic resin may be added to the beater which coats the paper fibres before carbon is introduced on to the mat.
Patent GB-1362291-A (GB)
Title: Apparatus for locating conduit connections
IPC: F16L37/00
Filed: 1971-10-18
Abstract: 1362291 Filling tanks COMPAGNIE PECHINEY 18 Oct 1971 [16 Oct 1970] 48247/71 Headings B8T and B8C  An apparatus for the coupling of a mobile tank 1 to a filling or emptying station 2 consists of connectible fixed conduits 22, 12 at the station and the tank respectively and a displaceable guiding platform 31 suspended from the station. Aligning devices comprising rectangular slots 314, 315 and trapezium shaped arms 321, 322, controlled by jacks 3216, 3226, are provided on the platform and tank respectively. On raising the arms 321, 322, if the tank is not exactly in position, the arms displace the platform 31 in order to align the tube 22 relative to the nozzle 12. In a modification, Fig. 3 (not shown), profiles (3161), (3162) joined by a stop (3163) are used, together with an arm 326 of constant width. After alignment a jack 223 inserts the tube 22 into the nozzle 12 of the tank. The platform is suspended from the station by a system of hinged rods, although a chain or a cable may be used. The apparatus may be used to transfer gaseous, liquid, or powdered material and the latter may be fluidized by compressed air.
Patent GB-1320972-A (GB)
Title: Stripping solution
IPC: G03F7/42
Filed: 1970-10-12
Abstract: 1320972 Etching ALLIED CHEMICAL CORP 12 Oct 1970 [13 Oct 1969 25 Sept 1970] 48420/70 Heading B6J [Also in Division C5] A stripping solution for removing organic films and deposits from e.g. silicon semi-conductors comprises at least 0À3% by weight of chromium trioxide in a solvent mixture consisting of H 2 SO 4 , 0À5 to 80% by weight of HNO 3  and 2 to 20% by weight of water, the H 2 SO 4  and HNO 3  constituting at least 75% by wt. of the solvent mixture, the said solution being free of active amounts of fluorine, chlorine and alkali and alkaline earth metals. The chromium trioxide may be added as the anhydride of chromic acid, ammonium chromate or ammonium dichromate or, subject to the quantities being non-active, as sodium or potassium chromate or dichromate. A thickener such as colloidal silica may be present.
Patent GB-1198898-A (GB)
Title: Binder Particles
IPC: D21H21/52
Filed: 1968-10-18
Abstract: 1,198,898. Binder particles. B. F. GOODRICH CO. 18 Oct., 1968 [20 Oct., 1967], No. 49431/68. Heading C3P. An aqueous suspension of binder particles is prepared by foaming a latex of a binder polymer, such as polyvinyl chloride, a polyacrylate or a butadiene-styrene copolymer, and mixing the foamed latex with a coagulant under vigorous agitation to form an aqueous suspension of flocculent binder particles of uniform size having one dimension no greater than about 10 microns and smaller than the other dimensions. In the examples, each of the preferred polymers, mixed with carboxy methyl cellulose, and, in the case of the SBR latex, with potassium oleate and potassium hydroxide, is foamed and then coagulated with an aqueous aluminium sulphate solution.
Patent GB-1360087-A (GB)
Title: Helical flow centrifugal separators
IPC: B04C7/00
Filed: 1971-10-18
Abstract: 1360087 Centrifugal separator SIEMENS AG 18 Oct 1971 [23 July 1971] 48442/71 Heading B2P  A helical flow centrifugal separator, e.g. for use in air-conditioning plant for aircraft for removing moisture and other impurities from air, comprises a separating chamber 1; an input feed tube 2 and a gas outlet 9 at opposite ends or sides of the chamber; a tube 7 surrounding the chamber and defining therewith an annular duct 6; throttling means 3, 5 associated with the feed tube to cause incoming gas to be purified to be divided so that a portion of the gas enters the chamber 1 via the feed tube 2 and a portion flows through the duct 6; auxiliary gas infeed means 10 coupled to the duct 6 to receive the gas flowing through the duct and arranged to produce a helical flow of that gas adjacent the wall of the chamber 1, the helical flow having a component of direction opposite to the direction from the feed tube 2 to the outlet 9; and a discharge gap 12 radially outwardly of the feed tube 2 for receiving particles of impurities centrifugally discharged, from the gas flowing through the chamber 1, into the helical flow adjacent the wall of the chamber. The throttling means comprises an annular arrangement of swirl producing guide vanes 3 which may be spherically curved and, possibly, a throttle diaphragm 5. The infeed means 10 consist of swirl-producing vanes 10 connected to the duct 6 via a deflecting chamber 11. A flange 19 on the feed tube 2 prevents a large proportion of gas constituting the helical flow from being discharged with the particles into the gap 12 so that a portion of the helical flow is fed into the main stream of swirling gas in the chamber to reinforce its swirling movement. The gap 12 has an outlet tube 13 for separated particles. Any moisture still present in the gas leaving through the tube 9 and separated out on the wall of the tube is removed by means of an annular channel 15 formed in the tube 9 and communicating via apertures 16 with a collecting chamber 17. Reference has been directed by the comptroller to Specification. 1173394.
Patent GB-1489629-A (GB)
Title: Loudspeaker housing
IPC: H04R1/02
Filed: 1974-11-11
Abstract: 1489629 Loudspeaker housings T KUHL 11 Nov 1974 48654/75 Heading H4J A loudspeaker housing kit includes a cubic frame 1 with an opening 2 in each face to receive a closure panel, and a set of closure panels including a loudspeaker mounting panel 5, a terminal panel 4 and a coupling panel 6 adapted 13 to receive a coupling element enabling similar housings to be coupled together. The panels are screwed 7 to the frame and the coupling elements are sleeves clamped 14 in apertures 13 in the coupling panels 6 and releasable from the terminal panel 4. Additional panels, intended to be attached to a separate housing coupled to that containing the drive loudspeaker, include bass-reflex devices such as perforated plates, resonators, non - energized diaphragms and horns; or rotary sound distribution devices. Carrying handles and castors may be attached to the coupling panels, and loudspeaker "trees" may be assembled using frames simply as couplings.
Patent GB-979896-A (GB)
Title: Novel fused tricyclic hydrocarbon compounds and processes for the preparation thereof
IPC: C07J61/00
Filed: 1961-01-23
Abstract: The invention comprises 13b -alkyl-5-methoxy-des: A-gona-5, 7, 9-triene derivatives having the formula: <FORM:0979896/C1/1> where R represents an alkyl group having from 2 to 7 carbon atoms, and in which W represents the oxygen atom =O of the keto group, X and Y together represent a double bond and Z is a methoxycarbonyl substituent, or W represents a hydroxyl substituent and either X and Y together represent a double bond and Z is hydrogen or a carboxy substituent, or alternatively X, Y, Z all represent hydrogen atoms and processes for the preparation thereof by reacting a compound having the formula: <FORM:0979896/C1/2> where R is as defined above, with dimethyl succinate to obtain 5-methoxy-15-methoxy-carbonyl-13b -alkyl-des: A-gona-5, 7, 9, 14-tetraene-17-one, reacting this compound with alkali metal hydride to form the corresponding 13b  - alkyl - 15 - carboxy - 17b  - hydroxy - 5 - methoxy-des: A-gona-5, 7, 9, 14-tetraene resolving the stereoisomers thus obtained to recover the laevo-rotatory isomer, heating this compound with strong mineral acid to form 13b -alkyl-17b -hydroxy-5-methoxy-des: A-gona-5, 7, 9, 14-tetraene and reducing this compound to yield 13b -alkyl-17b -hydroxy-5-methoxy-des: A-gona-5, 7, 9-triene. Resolution may be effected by forming a salt with the dextrorotatory isomer of the base corresponding to chloramphenicol and the final reduction step by catalytic hydrogenation. Specification 979,895 is referred to.
Patent GB-1024509-A (GB)
Title: A passivated semiconductor device and method of making same
Inventor: EDDLESTON JAMES HENRY
IPC: H01L29/00
Filed: 1962-12-31
Abstract: <PICT:1024509/C1/1> The edge of a semi-conductor P-N junction is coated with a lead glass substantially free of impurities which would contaminate the semi-conductor, "substantially free" meaning that the concentration of such impurities in the glass is very small compared with the doping impurity concentration in the semi-conductor: in practice this is achieved by making the glass from the purest commercially available constituents. These constituents are the oxides of lead, silicon (dioxide) and aluminium in the proportions, by weight, of 50 : 40 : 10 for a silicon semi-conductor and 60 : 30 : 10 for a germanium semi-conductor-though the invention is also applicable to other semi-conductors, e.g. gallium arsenide.  The glass is applied either directly to the semi-conductor material or to an oxide layer first formed on it.  In Fig. 1, the diode 16 has had an annular pit 15 etched into it, this pit defining the effective edge of the junction 13 and being filled with the glass, which is then fused to the semi-conductor by heating to 1000 DEG  C. in a helium atmosphere.  In Figs. 2 to 5 (not shown) are depicted other forms of diode and transistor with all their junction edges sealed by the glass.
Patent GB-1045720-A (GB)
Title: Poly(halophenylene-ethers)
IPC: C08G65/44
Filed: 1963-12-13
Abstract: Poly(halophenylene ethers) are obtained by reacting oxygen with a phenol of formula <FORM:1045720/C3/1> where X is fluorine or chlorine, or is bromine when Y and each Z are bromine, Y is chlorine, bromine or iodine, and Z is hydrogen, fluorine or chlorine, or is bromine when Y and each X are bromine, using as the oxygen-carrying intermediate a solution of a basic cupric salt complex with an aromatic, heterocyclic amine in which the phenol is soluble, the reaction being carried out at a temperature of from 80 DEG  C. up to the reflex temperature of the solution.  An aromatic, heterocyclic amine is mixed with a cupric salt or a cuprous salt if it is capable of existing in the cupric state, and the halophenol in a solvent, and air or oxygen is bubbled through the mixture, alternatively, air or oxygen may be passed into a solution of the complex, and then the halophenol added with no further addition of oxygen.  A free base, e.g. sodium or potassium hydroxide, may be present.  The repeating units may be linked in the para position, when halogen Y is removed, or in the ortho position, when a halogen X is removed. In examples, polymers are prepared from 2,4,6 - trichlorophenol, pentachlorophenol and pentabromophenol, with complexes prepared from cuprous chloride, cupric chloride and pyridine in nitrobenzene, benzonitrile, orthodichlorobenzene, dimethylacetamide and diphenyl ether, in some instances with the addition of potassium hydroxide.  Other materials are mentioned.
Patent GB-1457372-A (GB)
Title: Fluid-pressure regulating valve
IPC: B60T8/18
Filed: 1974-11-15
Abstract: 1457372 Fluid pressure brakes JIDOSHA KIKI CO Ltd 15 Nov 1974 [6 Dec 1973 (2)] 49464/74 Heading F2F  A regulating valve for adjusting a supply pressure from either of two air reservoirs AR 1 , AR 2  according to the payload of a vehicle and supplying the adjusted pressure to a control chamber (7) in a pressure-proportioning relay valve comprises an assembly which includes a pressure piston 18 reciprocably disposed in the valve body 16 and formed with an air passage through the wall on one side, a supply valve member 20 accommodated in a chamber inside the pressure piston 18 and seated on a valve seat 27 provided at the lower end of the chamber, an exhaust valve having a seat 21 engageable with a member 24 and having an upward protrusion 22 extended through an exhaust bore 23 formed in the axial centre of the supply valve; an output pressure chamber 11 between piston 18 and the valve body. A balance spring 35 above the piston 18 and a loading spring under the exhaust valve to bias the supply valve into open position. Loading the vehicle turns linkage 40 counterclockwise raising a plunger 36 and with it member 24, carrying member 20 away from its seat 27 so that pressure acts on piston 18 and raises it until member 20 engages seat 27, resulting in an output pressure, corresponding to the position of plunger 36, being transferred to control pressure chamber (7) of the relay valve. Reduction of load causes clockwise rotation of linkage 46 forcing plunger 36 downward and seat 21 away from the valve so that pressure from output chamber 31 is released to atmosphere to reduce the control pressure.
Patent GB-1425006-A (GB)
Title: Puzzle
IPC: A63F9/10
Filed: 1971-10-26
Abstract: 1425006 Puzzle; toy mosaics C J HARRIS and W J TOMLIN 23 Jan 1973 [26 Oct 1971] 49795/71 Headings A6H and A6S A puzzle comprising 51 pieces I each shaped as a rectangle 4 units by I unit, one long side having a unit square projection two units from one end, and 29 pieces 2 shaped as a rectangle 3 units by 2 units with a central unit square recess in one long side, the total being capable of assembly into a square. One or both sides may bear a picture. A back board and a frame 3 may be provided. The pieces may be moulded in plastics, have coloured edges and be deeper than they are wide. They can be stood on edge to make a pattern.
Patent GB-1361198-A (GB)
Title: Disulphide compounds and process for their manufa'ture
IPC: C07D205/095
Filed: 1971-10-27
Abstract: 1361198 Azetidinone derivatives CIBAGEIGY AG 27 Oct 1971 [27 Oct 1970 4 March 1971] 49963/71 Heading C2C The invention comprises a process for making compounds (I) (including salts and isomers thereof)  by oxidizing (II); R<SP>a</SP> 1  is H or a protecting group, R<SP>b</SP> 1  is H or acyl or R<SP>a</SP> 1  and R<SP>b</SP> 1  taken together signify a bivalent protecting group. Novel compounds (I) where R<SP>a</SP> 1  is H or (Ar is Ph, 3- or 4-hydroxy-phenyl, 3-chloro-4- hydroxyphenyl, 3,5-dichloro-4-hydroxyphenyl or 2-thienyl), R is H or optionally protected amino, carboxy or sulpho and R<SP>b</SP> 1  is H or R<SP>a</SP> 1  and R<SP>b</SP> 1  together signify alkylidene, are also described. Pharmaceutical preparations especially active against micro-organisms contain (XVI) as active ingredient; administration is enterally, parenterally or topically.
Patent GB-1452081-A (GB)
Title: Transfer function control networks
IPC: H03H11/12
Filed: 1973-10-26
Abstract: 1452081 Active filter POST OFFICE 22 Oct 1974 [26 Oct 1973] 49974/73 Heading H3T An active filter comprises a differential input amplifier 7 and admittances 1 ... 6 interconnected as shown. In a particular case, Fig. 2 (not shown), admittance 2 is a resistor having a conductance G 2  in parallel with a susceptance C 2 S, admittance 3 is a susceptance C 3 S, and the others are resistors having respective conductances G 1 , G 4 , G 5 , G 6 . By a suitable choice of values for these elements either an allpass or notch response may be obtained. In the latter case, susceptance C 3 S may be shunted by a conductance G 3 , Fig. 3 (not shown).
Patent GB-1135347-A (GB)
Title: Drive mechanism, especially for motor vehicles
IPC: F16H41/04
Filed: 1967-11-06
Abstract: 1,135,347. Driving gear; lubricating; gear pumps. FICHTEL & SACHS A. G. Nov. 6, 1967 [Nov. 11, 1966], No.50324/67. Headings F1B and F1F. In a driving arrangement for motor vehicles including an I. C. engine 40 driving a hydrodynamic torque converter 43, a pump 1 for delivering oil from a sump 4 for engine lubrication and a pump 2 for filling the torque converter are combined into one unit and driven by a common drive 46. The pumps 1 and 2 are gear pumps and pressure relief valves 50 and 50a are provided in by-passes 49 and 51, respectively. The cup-shaped pump housings 52 and 55 have respective driving gear wheels 14 and 20 mounted on a common drive-shaft 16 and the driven gear wheels 15 and 21 are mounted on journals 17 and 22. The suction and delivery conduits of the pump 2 are connected to the housing cover 24 and communicate with the suction and delivery sides through passages (57 and 58) Fig. 3 (not shown), in the cover. The pressure relief valve 50a is formed by an adjustably spring-loaded ball valve (27) (Fig. 3), in the cover 24. The suction and delivery conduits 47 and 48 of the pump 1 are connected to the base 19 of the housing 55 for communication with the suction and delivery sides of the pump 1. The suction conduits (112, 147) Fig. 5 (not shown), of the two pumps (101, 102) may be arranged concentrically, the suction conduit (147) of the lubricating oil pump (101) passing through the cover (124) and housing (155) of the converter filling pump (102). The output shaft 9 of the torque converter 42 is connected to a gear-box 45.
Patent GB-995989-A (GB)
Title: Improvements in or relating to clutches
IPC: F16D43/10
Filed: 1963-12-20
Abstract: 995,989. Friction clutches. ZAVODY 9. KVETNA, NARODNI PODNIK. Dec. 20, 1963 [Dec. 27, 1962], No. 50434/63. Addition to 880,203. Heading F2C. The disc clutch of the parent Specification is modified in respect of the ratchet-screw member between the transmission shaft and pressure plate brake, the teeth on the shaft sleeve 16 having cut-out portions forming axial projections 20, while the teeth on the complementary sleeve 17 have short axial projections 22.
Patent GB-1500560-A (GB)
Title: Buoyant hose
IPC: F16L11/133
Filed: 1975-12-10
Abstract: 1500560 Buoyant hoses GATES RUBBER CO 10 Dec 1975 [11 Dec 1974] 50606/75 Heading F2P A buoyant hose has a tube 12 with a reinforcing carcass 14 and an outer cover 20 that may also be reinforced. Intermediate carcass 14 and cover 20 are layers of tubing 16. Each layer is wound helically about the inner tube with an outer layer of tubing being axially offset with respect to an inner layer so that it rests between the turns of the inner layer. Each layer of tubing is formed into float chambers 18 by heat scaling along its length as at 24. The helical angle is between 60 and 85 degrees and the the tubing is manufactured from materials such as blocked polyester thermoplastic elastomers, nylon (R.T.M.) and polyurethane. Interpositioned between the tubing is cellular or foam material 26 of any suitable elastomeric material such as natural or synthetic rubbers, polyurethane and polyvinylchloride. A solid elastomer such as gum rubber may be used with a loss in hose buoyancy. A hose assembly 42 has buoyant hose connected to coupling means 44. Restraining bands 48 tie off the tubing and retain the hose on the coupling means with the aid of ribs 46. Bundles of tubing may be preassembled in the foam material to have one of several geometric arrangements such as 32 and 34 in Fig. 1. The bundles are helically wound around the carcase 14. The cellular foam material may be applied in the form of a calendered stock which includes a blowing agent sensitive to heat. Thus when the outer cover is positioned the hose is cured using standard vulcanization techniques. The cellular structure is formed as the blowing agent is heated.
Patent GB-1028258-A (GB)
Title: Spacer for bundled conductor transmission lines
IPC: H02G7/12
Filed: 1964-12-14
Abstract: 1,028,258. Cable spacers. BURNDY CORPORATION. Dec. 14, 1964 [Dec. 20, 1963], No. 50775/64. Heading H2C. A spacer for sub-conductors of overhead transmission lines has conductor clamps 20, 21, 22, 23 connected to arms of a support frame 15 by blocks of elastomeric material 16, 17, 18, 19 which are placed in shear stress by vertical motion of the conductors relative to the frame 15, so as to damp out unwanted vibrations. The blocks are bonded to the arms and to extensions on the cable clamps (Fig. 2, not shown). The support frame can be of X-shape. Extensions 28 limit the sub-conductors movement and prevent corona discharge.
Patent GB-1299835-A (GB)
Title: Improvements in and relating to open-end spinning devices
IPC: D01H4/08
Filed: 1971-11-02
Abstract: 1299835 Open, end spinning machine SPINNEREIMASCHINENBAU KARL-MARXSTADT VEB 2 Nov 1971 50888/71 Heading DID In an open end spinning device fibre laden air is induced into the spinning chamber in a path directed away from the plane of the fibre collecting surface towards the narrow end of the rotor cavity. This may be by a deflector plate 9 or by a curved guide channel (4) Fig. 1 (not shown). Possible shapes for the deflector plate 9 are illustrated in Fig. 3 (not shown).
Patent GB-508998-A (GB)
Abstract: 508,998. Resistance and current measurements. PATIN, A. Dec. 5, 1938, No. 35414. Convention date, Jan. 14. [Class 37] [Also in Group XXXVIII] A resetting device for instruments in which only a small deflecting torque is produced comprises a current source such as a charged electrolytic or other condenser which, in the event of interruption of the circuit, generates an electro-magnetic couple to restore the moving system to zero position. In the self-balancing Wheatstone bridge shown in Fig. 1, one arm consists of a variable resistance 1 such as a resistance thermometer, the other arms being formed by fixed, resistances 2, 6, 7 and a potentiometer resistance 4 engaged by a slider 8 carried by the movable coil 5 of the bridge galvanometer. This coil is so wound that it turns in a direction to balance the bridge and also carries a pointer to indicate the value of the resistance 1. The coil 5 has no spring control, but in order to return it to zero a condenser 13, in series with resistances 14, 15, is charged from the voltage source between the points 16, 17 and discharges through the coil 5 in such a direction as to return it to zero in case the applied voltage disappears or in case of fracture of one of the wires 10, 11, 12. In a modification, Fig. 2, the bridge diagonal 18 has no resistance and the rotary coil system is formed by two coils 19, 20 which are mechanically connected and move the slider 21. Instead of a resistance thermometer, a smoke-gas testing apparatus may be employed in which the resistance depends on the composition of the air. In another modification the two arms 1, 2, Fig. 1, of the bridge are formed by a potentiometer resistance. A crossed-coil instrument is shown in Fig. 4, in which the moving system comprises two coils 34, 35, a condenser 40 being connected across the coil 34.