baber/WOPTO huggingface dataset:
Patent GB-1525843-A (GB)
Title: Electrical connectors
IPC: H01R11/01
Filed: 1977-06-14
Abstract: 1525843 Electrical connectors HEPWORTH ELECTRICAL DEVELOPMENTS Ltd 14 June 1977 [17 June 1976] 25045/76 Heading H2E A connector for interconnecting electrical conductors comprises a channel shaped member 1A with a plurality of screws 2 passing through threaded holes 3 in one wall 4, the axes of the holes 3 being inclined to the inside of that wall 5 towards the back 6 of the channel, whereby conductors being connected are pressed towards the back 6 of the channel by the screws 2. As described, the connector may be straight or bent, may connect the ends of two cables or the end of one cable to the middle of another.
Patent GB-490173-A (GB)
Title: Improvements in belts for supporting trousers
IPC: A41F9/00
Filed: 1937-09-15
Abstract: 490,173. Belts for personal wear. NAVONE, O. Sept. 15, 1937, No. 25063. [Class 141] A belt for supporting trousers comprises an elastic band 1 which is connected at each end to two non-elastic bands 2, 3, or 2, 6, the non- elastic bands 2 which are preferably shorter than the bands 3 and 6 each being provided with buttonholes 4 for attachment to buttons provided on a bar 7 which is secured to the trousers, and the non-elastic bands 3, 6 being secured together by a buckle or the like 5.
Patent GB-207300-A (GB)
Title: Improvements in kettles or other utensils for heating or boiling liquids
IPC: A47J27/022
Filed: 1923-05-22
Abstract: 207,300. Priest, A. E., and McQueen, J. M. May 22, 1923. Bottoms; heating - surfaces, increasing. - An annular groove 2 is formed near the outer edge of the bottom of a kettle or like vessel, the outer wall 2a of the groove curving into the wall 3 of the vessel so that a rounded water-containing channel is formed which can be readily cleaned.
Patent GB-903580-A (GB)
Title: Nuclear reactor fuel element and method for making same
IPC: G21C3/04
Filed: 1959-07-22
Abstract: 903,580. Nuclear fuel elements. UNITED STATES ATOMIC ENERGY COMMISSION. July 22, 1959 [July 28, 1958], No. 25126/59. Class 39 (4). A nuclear fuel element consists of a rectangular plate 20 of fuel with tapered or bevelled ends enclosed in cladding consisting of sidepieces 40, 42 with bevelled ends, end-pieces 32, 34 with V-shaped grooves engaging the bevelled ends, and cover-plates 26, 28. These members are assembled, enclosed in a jacket of Ti-killed low-carbon steel and elongated by rolling at about 1500‹ C. to reduce the thickness of the element by a factor of at least three and to bond the fuel and cladding together. The angle included between the bevelled surfaces is 15 to 60 degrees before rolling. The cladding is Zr or an alloy of Zr. Specifications 767,892, 817,751, 885,891 and U.S.A. Specification 2,798,847 are referred to.
Patent GB-1520589-A (GB)
Title: Multi-frequency receiver circuits
IPC: H04Q1/457
Filed: 1976-06-17
Abstract: 1520589 Selective signalling GENERAL INSTRUMENT MICROELECTRONICS Ltd 13 June 1977 [17 June 1976] 25227/76 Heading G4H [Also in Division H4] A processor for receiving a periodic signal, e.g. a multifrequency receiver, comprises measuring means for determining whether the period of the signal lies within any one of a plurality of a predetermined, spaced ranges of period, means. for producing an output when the period corresponds to a single range more than a first predetermined number of times in group of a given number of successive measurements and for continuing to produce said output if in the following group the period corresponds to the same range more than a second predetermined number of times which is less than the first time and means for storing said range. In the embodiment, Fig. 1, two such processors 1, 2 are employed in a telephone MF receiver, each for detecting a one-out-of-four frequencies. An input signal i.e. IN1 for processor 1 is received by I/P logic 3, which determines the number of cycles of the signal in in each measurement. A period counter 4 produces signals, corresponding to the four frequencies, which are compared by signal testing means 5 with the period of the incoming signal to determine whether the period of the signal corresponds to one of the frequencies in the group. A status register stores the results of a numbere .g. 5, measurements and if a single frequency is detected on 4 or more measurements it produces an output corresponding to the frequency detected. This output is continuously produced until in a further group of 5 measurements the number of valid signals detected corresponding to the same frequency is less than, say 2. The operation of processor 2 is identical, but it deals with higher frequencies. Both processors are controlled by clock signals produced by phasing logic 7. Matrices 9, 10, latches 11 and 0/P stages 12 receive the outputs of both processors and determine the digit received, if the signals persist for more than a predetermined time (timers, Fig. 8, not shown).
Patent GB-379862-A (GB)
Title: Improved manufacture of 2 : 3-amino-naphthol and derivatives thereof
Filed: 1931-09-08
Abstract: 3 - Amino - 2 - naphthol and nuclear substitution products thereof are made by hydrolysing a 2-(carboxyarylsulphoyloxy) - 3 - aminonaphthalene obtained by subjecting a 2-(carboxyarylsulphoyloxy) - naphthalene - 3 - carboylamide in an aqueous medium to the action of an alkali hypochlorite or hypobromite according to Hofmann's reaction.  In an example, 2 - naphthol - 3 - carboylamide is treated with benzene-1-carboxy acid-3-sulphoylchloride to form 2-(3<1>-carboxybenzene-sulphoyloxy) - naphthalene - 3 - carboylamide which is converted into the corresponding 3-amino compound by means of sodium hypochlorite and the product saponified with or without previous separation to give 3-amino-2-naphthol.  In the nomenclature used -- CONH2 = carboylamide, -- SO2 -- = sulphoyl, and -- SO2 -- O -- = sulphoyloxy.
Patent GB-487397-A (GB)
Title: Improvements in or relating to receivers for phase and frequency modulated oscillations
IPC: H03G1/04
Filed: 1936-09-17
Abstract: 487,397. Valve circuits for wireless reception. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. Sept. 17, 1936, No. 25353. Void. Convention date, Sept. 17, 1935. Drawings to Specification. [Class 40 (v)] An automatic gain control system for a receiver of frequency or phase modulated signals has such a small time constant that any amplitude modulation is removed. The filter for the control voltage may comprise inductances instead of resistances.
Patent GB-1434521-A (GB)
Title: Carriers for magnetic recording tapes
IPC: B32B7/022
Filed: 1974-06-07
Abstract: 1434521 Composite polyester films LA CELLOPHANE 7 June 1974 [8 June 1973] 25432/74 Addition to 1397653 Headings B5B and B5N In the construction of carriers for magnetic recording tapes comprising biaxially stretched composite polyester films the faces of which are formed from two polyesters, films formed from which have different slip properties after being stretched, in accordance with Specification 1,397,653, said polyesters are such that the smoother face of the composite film has a coefficient of roughness below 0À5 and the coefficient of friction between the two faces is less than 0À7. Films are made by coextrusion and may comprise two or more layers. The polyesters are prepared by catalytic ester interchange, the film having the smoother face being prepared from a polymer in which the catalyst is soluble therein and the rougher face from a polymer in which the catalyst is insoluble therein. Preferred polymer is polyethylene glycol terephthalate.
Patent GB-1049245-A (GB)
Title: Improvements in or relating to a fluid-valve assembling machine and a method for assembling a valve
IPC: F16K15/20
Filed: 1964-06-19
Abstract: 1,049,245. Valve assembling machine. NATIONAL DISTILLERS & CHEMICAL CORPORATION. June 19, 1964 [Jan. 24, 1964] No. 25434/64. Heading F2V. A tyre valve assembling machine, Figs. 3 and 4 (not shown), for inflating a tyre tube 40 and assembling a valve core 26 into a valve body 44, comprises a rotatable valve core driver 51, 20, 24 having an end adapted to receive and hold a pin end of the core 26, a retractable barrel 12 surrounding the driver 20, 24 having an end adapted to receive the body 44 and an opening 28 to admit air under pressure, and a pin 32 for preventing the core 26 from entering the body 44 when compressed air is supplied through the opening 28. In operation, a core 26 is placed in the open end of the barrel 12 and the valve body 44 is connected. Air is then supplied through the pipe 35 and opening 28, which forces the pin into the barrel 12 against the action of a spring 36, and the tube 40 is inflated to a desired pressure. The barrel 12 is then forced inwardly against the action of a spring 16 to locate the core 26 between the body 44 and the driver head 24. The head 24 is rotated by a motor through an electro-magnetic clutch 50 and screws the core into the body 44.
Patent GB-518588-A (GB)
Title: Improvements in or relating to screens for cathode ray tubes
IPC: H01J29/16
Filed: 1938-08-31
Abstract: 518,588. Cathode-ray tubes. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Aug. 31, 1938, No. 25460. Convention date, Aug. 31, 1937. [Class 39 (i)] An incandescent screen for use in cathode-ray tubes consists of a wire mesh 10 in the interstices of which are mounted independent rodlets 11 of refractory oxide ; these may have refractory caps 12. They may be made from the nitrates of thorium, cerium, calcium or manganese which on reduction by heat produce the oxide ; preferably thorium nitrate in water is used with boric oxide as a flux, this solution being applied to the wire mesh by painting, dipping or spraying. When sufficient nitrate is adherent the mass is heated by applying a current to the mesh which is temporarily attached to end electrodes 14, Fig. 7 ; to ensure heating of the edge of the screen, non-coated wires 15 are placed alongside and current also passed therethrough. The caps 12 are formed by spraying on nitrate solution after the main parts of the rodlets have been formed and subsequent heating. The screen so formed is mounted in a frame 18 with a mica backing 19, and mica heat insulating strips 20. The image produced on the screen can be projected by a lens on a viewing screen.
Patent GB-1487081-A (GB)
Title: Production of foundry cores
IPC: B22C5/12
Filed: 1975-06-09
Abstract: 1487081 Production of foundry cores BRITISH LEYLAND UK Ltd 9 June 1975 [8 June 1974] 25515/74 Heading B3G A machine for producing cold-setting foundry cores in which two segregated sand mixes, i.e. a sand-resin mix and sand-hardener mix, are fed to a final mixing chamber, includes a structure 1 rotatable about a vertical axis 2 and carrying opposed vertical tubes 3 through which the separate mixes are fed to the spaced inlets 8 of the mixing chamber. The structure also carries two vertical pneumatic actuators 4 each including a sealing member 5 fitted to a vertical plunger. A pneumatic actuator 9 swings between the structure through 90 degrees between two position so that in one position the tubes 3 register with the inlets and in the other the sealing members 5 are brought into alignment with the inlets and plug them, whereupon the final mix is blown from the mixing chamber into a core-box.
Patent GB-727504-A (GB)
Title: Impedance indicating devices
Inventor: FELGATE PETER EDWARD
IPC: G01R17/00
Filed: 1952-10-13
Abstract: 727,504. Liquid contents gauges. SMITH & SONS (ENGLAND), Ltd., S. Oct. 13, 1953 [Oct. 13, 1952], No. 25567/52. Class 37. A bridge whose output represents the quantity of liquid (e.g. hydrocarbon fuel) in a liquid contents gauge/capacitor is associated with a phase sensitive detector which produces an output responsively to change or deterioration in power-factor of said capacitor (e.g. caused by contamination of the fuel with water). In the Figure, fuel quantity change in tank-condenser 2 which forms one bridge arm is translated into a D.C. via the bridge 5, phase-sensitive detector 11 and amplifiers 10, 14 so that a motor 15 drives fuel contents indicator 18 and balances bridge 5. The reference input to detector 11 is taken from A.C. source 9 through a phase-shift network 13 and the bridge output is in phase or antiphase with source 9 whilst tank-condenser 2 has zero power-factor. The bridge output is also taken via amplifier 10 into a second phase sensitive detector 12 whose reference input is. derived from a quadrature phase-shift network 19 so that at zero power-factor there is zero output from the detector 12. If, for example, due to the presence of water the tank-condenser 2 power-factor changes from zero, the indicator 21 gives this information as it responds via amplifier 20 to the output from phase-sensitive detector 12. The indicator 21 may operate a flag or warning light or audible alarm when the power-factor deterioration is substantial so that the observer is advised not to rely on the fuel quantity indication at 18.
Patent GB-906384-A (GB)
Title: Jet propulsion nozzles
Inventor: PERRY SYDNEY WILLIAM HENRY
IPC: F02K1/12
Filed: 1960-07-22
Abstract: 906,384. Jet propulsion nozzles. POWER JETS (RESEARCH & DEVELOPMENT) Ltd. July 14, 1961 [July 22, 1960], No. 25592/60. Class 110 (3). A convergent-divergent jet nozzle comprises an outer wall and a centre body, the throat of the nozzle lying in the plane of maximum crosssectional area of the centre-body which is variable so as to vary the throat area, the outer wall comprising a number of flaps pivoted in the plane of the throat so as to vary the discharge area of the nozzle. The circular jet pipe 1 contains a centre-body which is diamond shaped in an axial crosssection, extending across the pipe between fixed parts 17, 18 which have an arcuate outer surface to fit the pipe and flat inner surfaces 16 between which extend the plates 11a, 11b, 12a, 12b that form the centre body. The plates 11a, 11b, 12a, 12b are hinged together and to supporting member 3 and to fairing 13 which may be moved by the rod 14 of the jack 15, to vary the area of the throat 5. The walls of the pipe downstream of the throat 5 between the fixed parts is formed by flaps 21 pivoted in the plane of the throat and actuated by jacks 22 to vary the discharge area 7.
Patent GB-1207419-A (GB)
Title: Yarn tension releasing attachment for sewing machines
Inventor: PESCHKE GUNTER
IPC: D05B47/00
Filed: 1968-05-28
Abstract: 1,207,419. Sewing machines. G. PESCHKE. 28 May, 1968 [23 Feb., 1968], No. 25595/68. Heading DIG. A yarn tension device for sewing machines comprises two discs 2, 9 loaded by a spring 5 to engage the thread 7 and adapted to be released on operation of a solenoid 12 acting on disc 9 through a lever 8 pivoted at 17, the arm of the lever nearer the solenoid being longer than that nearer the discs and preferably in the ratio of 3:1. The disc 9 may be formed integrally with the arm 8.
Patent GB-605472-A (GB)
Title: Improvements relating to the recovery of fluorides
IPC: C01B7/19
Filed: 1945-10-02
Abstract: Hydrogen fluoride or boron fluoride or both are separated from hydrocarbons by contacting with a diaryl ketone, an amine, or an oxyfluoboric acid, being an absorbent capable of forming a complex with the fluoride or fluorides, separating the complex and heating it to recover the fluorides from it.  The fluorides may be in gaseous or liquid phase.  The oxyfluoboric acids have the formula HxByFzOw where x, y, z, w are small whole numbers.  The diaryl ketone may have phenyl, naphthyl, anthyl, or diphenyl groups which may have alkyl or halogen substituents, and may be mixed with inert diluents, e.g. diphenyl or diphenyl ether.  The amines may be primary, secondary or tertiary, may include halogen, nitro, or other substituents, and may be mixed with or without a diluent. Absorption may be under reduced or increased pressure at temperatures up to 300 DEG  F., and decomposition at e.g. 100-530 DEG  F. Examples describe the use of benzophenone, diphenylamine and dihydroxyfluoboric acid H3BF2O2.  The latter may be prepared by the action of hydrogen fluoride on boric oxide or boron trifluoride or boric acid.  Dihydroxyfluoboric acid with hydrogen fluoride yields H4BF3O2, while boron trifluoride with water yields H6B2F6O3.ALSO:Hydrocarbons are purified from hydrogen fluoride or/and boron fluoride by contacting with a diaryl ketone, an amine, or an oxyfluoboric acid, being an absorbent capable of forming a complex with the fluoride or fluorides, separating the complex and heating it to recover the fluorides from it.  The fluorides, may be in gaseous or liquid phase.  The oxyfluoboric acids have the formula HxByFzOw, where x, y, z, w are small whole numbers.  The diaryl ketone may have phenyl, naphthyl anthoyl or diphenyl groups which may have alkyl or halogen substituents and may be mixed with inert diluents, e.g. diphenyl or diphenyl ether.  The amines may be primary, secondary or tertiary, may include halogen, nitro, or other substituents and may be mixed with or without a diluent. Absorption may be under reduced pressure or increased pressure at temperatures up to 300 DEG  F., and decomposition at, e.g. 100-530 DEG  F. Examples describe the use of benzophenone, diphenylamine and di-hydroxyfluoboric acid H3BF2O2.  The latter may be prepared by the action of hydrogen fluoride on boric oxide or boron trifluoride on boric acid.  Dihydroxyfluoboric acid with hydrogen fluoride yields H4BF3O2 while boron trifluoride with water yields H6B2F6O3.
Patent GB-726882-A (GB)
Title: Improvements in or relating to air distributing devices
IPC: F24F13/062
Filed: 1953-09-17
Abstract: 726,882. Ventilators. STEWART, I. M. Sept. 17, 1953, No. 25696/53. Class 137. A device for fitting, e.g., in the ceiling of a space to be ventilated for distributing air with the minimum of noise and draught comprises an inner tapered member 4 which is supported coaxially by a spider 6 within the tapered portion of an outer member 2 adapted to be connected to an air duct, the cross-section of the air passage between the members 2, 4, both of pyramidal or conical form, being constant. The inner member 4 is filled with sound absorbing material 5. Specification 375,862 is referred to.
Patent GB-384967-A (GB)
Title: Improvements in or relating to automobile lifts
IPC: B66F7/28
Filed: 1932-09-15
Abstract: 384,967. Lifting - stands for motor vehicles. HODGKINSON, V. C. and WESTWOOD & CO., Ltd., J., Napier Yard, Millwall, London. Sept. 15, 1932, No. 25718. [Class 78 (iii).] In a lift for motor vehicles wherein H -section girders 5, 6, carrying wheel tracks, are mounted at their intersection on a lifting ram, the girder 6 passes through an aperture in the web of the girder 5 and is welded thereto.
Patent GB-724286-A (GB)
Title: Apparatus for deforming sheet metal
IPC: B21D11/08
Filed: 1952-10-14
Abstract: 724,286. Forging dies; expanding and stretching. ECKOLD, W. Oct. 14, 1952 [March 29, 1952], No. 25762/52. Class 83 (4). Punches for deforming sheet metal are hollow and have continuous contact surfaces of resilient material which expand or contract when pressure is exerted. A punch for contracting metal sheet comprises a frusto-conical member 1, Fig. 1, with a contact surface 3 at the smaller diameter end. A similar punch for expanding metal sheet has a member 2, Fig. 2, with the contact surface 3 at the larger diameter end. The sheet may be backed by a profiled anvil or by counterpunches.
Patent GB-1429556-A (GB)
Title: Method for purifying 2,6-naphthalenedicarboxylic acid
IPC: C07C51/265
Filed: 1973-05-30
Abstract: 1429556 Purification of 2,6-naphthalene dicarboxylic acid TEIJIN Ltd 30 May 1973 25889/73 Heading C2C Crude 2,6-naphthalene dicarboxylic acid obtained by the oxidation of 2,6-dialkylnaphthalene is purified by a process comprising the steps of (a) preparing an aqueous solution of a dibasic salt of said crude 2,6-naphthalenedicarboxylic acid (by precipitating 40-97 mol. per cent of the dibasic 2,6-naphthalenedicarboxylate dissolved in said aqueous solution substantially as a monobasic salt of the 2,6-naphthalenedicarboxylic acid while maintaining the pH of said aqueous solution at a value not lower than 6À3, and separating the precipitate, and (c) converting the separated precipitate to a 2,6-naphthalene dicarboxylic acid.
Patent GB-139132-A (GB)
Title: Improvements relating to incandescent gas burners
IPC: F23D14/62
Filed: 1919-02-09
Abstract: 139,132. Bray, A., and Bray & Co., G. Feb. 9, 1918. Atmospheric gas burners. - The burner cap of an incandescent burner has an imperforate central part 15 having radial grooves 18 on its under surface, and raised so that its under surface is about level with the upper surface of the radiallyslit outer part 14 of the cap.
Patent GB-951780-A (GB)
Title: Improvements in gas-filtering apparatus
Inventor: WELLS DAVID EDWARD
IPC: B01D46/04
Filed: 1960-07-27
Abstract: 951,780. Separating particles from gases. DUST CONTROL EQUIPMENT Ltd. Sept. 28, 1961 [July 27, 1960], No. 26121/60. Heading B1T. Gas-filtering apparatus comprises a series of filter elements 2, Fig. 1, suspended from a plate 3 which serves to divide a casing 4 into a lower chamber 5 and an upper chamber 6, the chamber 5 having at least one inlet 7 for dust-laden gas and the chamber 6 having an exhaust vent 8 for filtered gas and having ports 10 for entry of atmospheric cleaning air under the control of valves 11 operated manually or automatically, the arrangement being such that at no time are any of the filter elements 2 isolated by mechanical means from the source of suction. Each filter element has a mouth 2a into which protrudes a mouth element 9 provided on the plate 3, the mouth elements 9 being coaxial with the ports 10. Alternatively, each port 10 may be associated with more than one filter element or each filter element may be provided with more than one mouth element 9, each of the latter being associated with a port 10, Fig. 2 (not shown). In a modification of the first embodiment, Fig. 3 (not shown), the mouths 2a of the filter elements extend to the top of the chamber 6, lateral apertures being provided in the mouths for discharge of gas to the chamber 6. In a further modification, Fig. 4 (not shown), the cleaning air ports are disposed in the sides of the chamber 6. In a further embodiment, Fig. 5, a single cleaning air port 10 serves two filter elements 2, a selfoperating distributer 13 being pendulously suspended at 14 ; the distributer 13 is caused, by movement of cleaning air therethrough and by the disposition therebelow of a U-section component 15, to swing alternately to one side and then the other so as to direct cleaning air into the two filter elements. Alternatively, a single air port may serve two or more elements by means which are operated manually, mechanically or automatically to direct cleaning air into the elements sequentially. In a further embodiment, Fig. 6, a rotary distributer 16 is caused to rotate by the continuous flow therethrough of cleaning air which issues from a tangentially extending port 10<SP>2</SP>, the cleaning air being thereby directed sequentially into radially disposed filter elements 2.
Patent GB-628370-A (GB)
Title: An improvements in or relating to power-transmission devices
IPC: B62D3/02
Filed: 1947-09-27
Abstract: 628,370. Gearing for conveying rotary motion. BROWN & SONS (HUDDERSFIELD), Ltd., D. and TAYLOR, A. Sept. 27, 1947, No. 26192. [Class 80 (i)] A mechanism such as a steering mechanism for the transmission of rotary motion from a shaft a to a shaft d comprises a worm b engaging a sector c on an intermediate shaft f which has arms f, f<1> carrying a pin g co-operating with a slot h<1> in an arm h on the shaft d. The arrangement provides for an increasing mechanical advantage between the intermediate shaft f and the shaft d on either side of a central position.