baber/WOPTO huggingface dataset:
Patent GB-1515193-A (GB)
Title: Ozone generating apparatus
IPC: H01J11/00
Filed: 1975-05-21
Abstract: 1515193 Controlling converters MITSUBISHI DENKI KK 21 May 1975 [10 June 1974] 21980/75 Heading H2F Ozone generating apparatus comprises an ozone generating discharge tube 3 supplied with a substantially rectangular current waveform (e.g. from an inverter comprising thyristors 7 ... 10, the inverter receiving current, e.g. from a controllable rectifier 5), the rate of production of ozone being controlled by adjustably controlling the current and frequency of the rectangular current waveform. The production rate is preferably monitored at 12 and compared at 14 with an adjustable reference 13, the result of the comparison being fed to a first function generator 16 arranged to control the voltage output from rectifier 5 and hence the current supplied to the inverter 7 ... 10 according to a predetermined law and to a further function generator 19 which is arranged to control the frequency of the inverter according to a further predetermined law. The laws are such that at low desired rates of ozone generation (Fig. 8) the frequency is held constant and the voltage adjusted, whereas at higher rates, the voltage is held constant and the frequency adjusted. The control circuit preferably includes means 15 for monitoring the current and means 24 for monitoring voltage. A frequency reference 26 may be included which is compared with the output of a function generator 19 and the resultant fed to a voltage-frequency converter 20 pulses from which are distributed by a flip-flop 21 to the gates of the thyristors 7 ... 10. An auxiliary commutating capacitor 11 is provided for starting. Fig. 1 (not shown) depicts an ozone generating tube comprising a first glass tube having a metallized inner surface located within, but separated from, a second conductive tube, the rectangular current wave being supplied between the two conductive surfaces. The principle of operation is explained graphically.
Patent GB-1292012-A (GB)
Title: Hydraulic brake booster
IPC: B60T13/16
Filed: 1971-04-19
Abstract: 1292012 Fluid pressure brakes BENDIX CORP 19 April 1971 [25 Feb 1970] 22051/71 Heading F2F An hydraulic boost device 10 for use in a vehicle brake system comprises a housing 12 defining a chamber 28 therewithin, a valve spool 30 slidable in a bore 32 to control communication between the chamber 28 and a source of pressurized fluid which may be a power steering pump 20, a piston 24 slidable in the chamber, a control rod or plunger 52 slidable in the housing and operatively connected to the valve spool and piston so that pressure on rod 52 moves the spool 30 to admit pressure fluid to chamber 28 and move piston 24 to move an operating rod 48 of a master cylinder to apply the brakes, the plunger having an abutment 88 and a member 76 slidable on the plunger being urged into engagement with the abutment 88 by a spring 98. Pressure on the brake pedal moves the master cylinder piston and the spool valve to admit fluid to chamber 28 to provide assistance.
Patent GB-1322116-A (GB)
Title: Europium chalcogenides
IPC: H01F1/40
Filed: 1971-04-19
Abstract: 1322116 Modified europium chalcogenides INTERNATIONAL BUSINESS MACHINES CORP 19 April 1971 [2 March 1970] 22089/71 Heading C1A [Also in Division H1] A europium chalcogenide EuA 1-y X y  where 0À003 < y < 0À3, A is O, S, Se or Te and X is F, Cl, Br or I is claimed per se and is prepared by heating a homogeneous mixture of EuA, Eu and EuX to a temperature of 2050‹ C. to 2550‹ C. in a sealed refractory metal container (e.g.MoorW) for a time sufficient to cause the EuA to react with the EuX, slowly cooling the reaction mixture to a temperature (e.g. below 2100‹ C.) and rapidly cooling to room temperature.
Patent GB-1402492-A (GB)
Title: Vacuum degassed interstitial-free low carbon steel and method for producing same
IPC: C22C38/14
Filed: 1973-05-09
Abstract: 1402492 Steel compositions ARMCO STEEL CORP 9 May 1973 [19 May 1972] 22141/73 Heading C7A A low-carbon, non-ageing steel possessing high ductility, high tensile to yield strength ratios and no yield point elongation consists by weight of:- residual amounts of phosphorus and silicon the balance iron and incidental impurities. The amount of titanium, apart from that present as titanium oxide, should not exceed (4x%C+3.43x%N); the amount of zirconium apart from that present as zirconium oxide or sulphide should not exceed (7.6x%C+6.51x%N) to prevent precipitationhardening effects while the niobium content should include more than 0.025% in uncombined form and not more than 0.004% carbon combined with niobium. The steels should be vacuum degassed before casting: they are then hot-rolled e.g. finishing at 816-927 C, coiled, cold-rolled and batch annealed at 705 to 788C or continuously at up to 900C Metallic or non-metallic coatings can be applied after annealing, e.g. by hot dipping. The absence of yield point elongation is a property of both the hot-rolled or the coldrolled and annealer steels.
Patent GB-1115497-A (GB)
Title: Balanced constant impedance modulators and demodulators
Inventor: GINGELL MICHAEL JOHN
IPC: H03C1/54
Filed: 1967-05-12
Abstract: 1,115,497. Amplitude modulation; frequency changing. STANDARD TELEPHONES & CABLES Ltd. 12 May, 1967, No. 22149/67. Headings H3F and H3R. A balanced modulator, Fig. 1, comprises a sampling means SW1 for connecting N channels sequentially to a source COST, each channel being connected to earth via an individual impedance, e.g. a resistor R1, and a common R1 negative impedance converter - R1 / 2. A similar 2 circuit may be used as a demodulator by reversing the input and output connections. In frequency translating equipment, Fig. 6, a large number of channels 1... N may be connected to a source via a first cyclic switch, operating at a frequency f 1 , and each channel may be connetted to an output 4 by a second cyclic switch operating at a frequency f 2 . Each channel may include an individual low-pass filter 2 which passes only the difference between f 1  and the input frequency or, where there are an even number of channels, pairs of channels may be connected to common filters, Fig. 10 (not shown). Where three channels are employed a three-phase filter may be used, Fig. 11 (not shown).
Patent GB-857323-A (GB)
Title: Improvements in methods and apparatus for curing plastics and other materials
IPC: B29C48/05
Filed: 1959-06-29
Abstract: <PICT:0857323/IV(a)/1> Materials, such as rubber, synthetic rubber, silicones, are cured by passing them through successively hotter zones of an open static body of molten metal, the material being preferably more deeply submerged as it advances through the molten metal.  The material may be extruded to rod, tube or sheet form, or a strip may be folded around a core, before being vulvanized.  The apparatus may comprise an insulated tank 2 containing molten metal 4, e.g. a tertiary eutectic of bismuth, tin and lead, controllably heated by heaters 8 to have successively hotter zones of metal, e.g. at 250 DEG F., 350 DEG F. and 400 DEG F., from the point of entry of the material which is guided by rollers 26 mounted on rods 28.  The rods are individually adjustable by means of screws 33 and form part of a frame, which by means of screws 103, may be raised or lowered. Sand 40 at the exit point of the material removes globules of metal adhering thereto and talc 38 on the metal surface at the entry point serves both to preheat the material before immersion and prevent oxidation of the molten metal in the tank.
Patent GB-924801-A (GB)
Title: Dimpled metal sheet
Inventor: MBERGER ETIENNE MAURICE SCHLU
IPC: F17C3/02
Filed: 1961-06-20
Abstract: 924,801. Metal sheeting. CONCH INTERNATIONAL METHANE Ltd. June 20, 1961, No. 22191/61. Class 20 (2). A metal sheet has two sets of elongated dimples 2, 3 with rounded ends and which curve into the surrounding sheet the two sets being on opposite sides of the sheet and the axes of the dimples in each set being parallel and at an angle to the axes of the dimples of the other set, a dimple of one set being between each two dimples of the other set and the dimples being so close together that no straight line can be drawn across the sheet which does not go through a dimple. Specifications 924,803 and 924,804 are referred to.
Patent GB-1254772-A (GB)
Title: Production of nitriles
Inventor: HAWKINS EDWIN GEORGE EDWARD
Filed: 1969-05-01
Abstract: 1,254,772. Olefinic hydrocarbons. BP CHEMICALS Ltd. 11 March, 1970 [1 May, 1969], No. 22216/69. Heading C5E. [Also in Division C2]  Olefins, e.g. cyclohexene and isobutylene, are produced by pyrolysing N-alkyl or cycloalkyl monoamides or N,N<SP>1</SP>-dialkyl or cycloalkyl diamides in which the amide groups are separated by at least four carbon atoms.
Patent GB-780108-A (GB)
Title: Improvements in a cigarette-making machine tobacco feed
IPC: A24C5/39
Filed: 1955-08-03
Abstract: 780,108. Separating solid materials. AMERICAN MACHINE & FOUNDRY CO Aug. 3, 1955 [Oct. 22, 1954], No. 22268/55. Class 117 [Aso in Group VI] Shredded tobacco is fed by a carding roll 10 to a winnowing wheel 18 which throws the tobacco forward, particles of acceptable size falling on to a conveyer band 22 to form a tobacco carpet whilst stem portions are projected into a collecting box 20 from which they are passed through a crushing mechanism 40 and then fed on to the tobacco carpet M.
Patent GB-1466123-A (GB)
Title: Getter device and method of use
IPC: H01J29/94
Filed: 1974-05-20
Abstract: 1466123 Gettering cathode-ray tubes SAES GETTERS SpA 20 May 1974 [18 May 1973] 22408/74 Heading HID A getter assembly comprises an annular container 11, a getter metal vapour releasing material 14 within the container, an annular support 16 attached to the bottom of the container, said annular support being of a material of low thermal conductivity and of high resistance to heating by induction currents, wherein the inner radius r 2  of the annular support is greater than the inner radius r 1  of the annular container, and the outer radius r 4  of the annular support is substantially equal to the outer radius r 3  of the annular container. The container 11 comprises inner and outer stainless steel walls 12 or 13 joined at the bottom by spaced elements (not shown) which may be integral with the walls. The getter material 14 may be 1 gram of a mixture of Ni and an alloy of approximately 50% Ba - 50% Al in a ratio of about 1 : 1 to which a small percentage of iron nitride is added. The container 11 is spot welded to a discshaped coupling element 15 to the centre of which is attached a metal container holding gas-releasing material 17, e.g. iron nitride. The ceramic support member 16 has a profile which is stepped at 19 and 19<SP>1</SP> to reduce the area of contact when inserting the assembly in a cathode-ray tube. In an alternative embodiment (Fig. 2, not shown) the profile of the support 16 is arcuate.  The assembly is mounted in contact with the funnel portion of a shadow mask colour tube at one end of a leaf spring the other end of which is secured to the electron gun. The construction of the support 16 results in an assembly which is not as heavy as prior constructions so the spring need only be lightly biased.
Patent GB-1073663-A (GB)
Title: Polyarylaminopolyethers
IPC: C08G12/42
Filed: 1964-06-01
Abstract: Aromatic polyaminopolyhydroxy compounds are obtained by reacting a cyclic organic oxide with the reaction product of an aromatic amine and an aldehyde or ketone.  The preferred reactants are aniline, formaldehyde and propylene oxide.  Other suitable compounds are: amines:- o-, m- and p-chloroanilines, toluidines, anisidines, and phenetidines, simple and halogenated a - and b -naphthylamines and various xylidines; aldehydes:- paraformaldehyde, acetaldehyde, propionaldehyde, butyraldehyde, heptaldehyde, nonaldehyde, benzaldehyde, chlorobenzaldehyde and bromobenzaldehyde; organic oxides:- ethylene oxide, propylene oxide, trimethylene oxide, tetramethylene oxide, pentamethylene oxide, octylene oxide, cyclohexene oxide, styrene oxide and butadiene-1,2-oxide.  Acetone is a specified ketone.ALSO:A polyarylpolyaminopolyether is obtained by reacting a cyclic organic oxide with the reaction product of an aromatic amine and an aldehyde. The preferred reactants are aniline, formaldehyde and propylene oxide.  Other suitable compounds are the o-, m- and p-chloroanilines, toluidines, anisidines and phenetidines, simple and halogenated a - and b -naphthylamines and various xylidines; paraformaldehyde, acetaldehyde, propionaldehyde, butyraldehyde, chloroand bromo-benzaldehyde and acetone; ehtylene oxide, propylene oxide, trimethylene oxide, tetramethylene oxide, 1:2-butylene oxide, pentamethylene oxide, octylene oxide, cyclohexene oxide, styrene oxide and butadiene dioxide.
Patent GB-173258-A (GB)
Title: Improvements relating to vacuum brakes
IPC: B60T13/46
Filed: 1920-07-29
Abstract: 173,258. Ramsay, D. M. July 29, 1920. Fluid-pressure.-The vacuum subsisting in the condenser of a locomotive is used for operating the vacuum brakes on the locomotive and train. Fig. 2 shows an apparatus by which both the usual ejector and the condenser are used in combination. A pipe K leading from the condenser ejector is connected to the train-pipe to which also is connected the usual ejector apparatus D. The controlled-handle T is provided with a cam S operating by the lever Q a valve M which controls the communication between the pipe K and the train-pipe so that when the handle is in the "off" position the valve M is unseated. Stop cocks G, L are provided in the steam supply and exhaust pipes of the ejector D and in the pipe K. The train-like vacuum can thus be maintained either by the condenser ejector or by the ejector D or by both. Or the ejector D may be dispensed with and a simple valve controlling communication of the train-pipe with the atmosphere and actuating the valve M be substituted for it.
Patent GB-934138-A (GB)
Title: Process for polymerising formaldehyde
IPC: C08G2/00
Filed: 1962-06-12
Abstract: Anhydrous formaldehyde is polymerized in an inert anhydrous organic solvent at -20 DEG  to +70 DEG C., using hexamine as catalyst. Specified solvents are toluene, other hydrocarbons, esters and cyclic or acyclic ethers.  The hexamine may be added batchwise or in a single stage in the solid state or in solution.  It is preferred to add gaseous formaldehyde and the polyoxymethylene product may be acylated or etherified.
Patent GB-1536212-A (GB)
Title: Grenades provided to be launched by a bullet
IPC: F42B30/06
Filed: 1976-06-01
Abstract: 1536212 Grenades "SA PRB" SA 1 June 1976 [29 May 1975] 22557/76 Heading F3A A rifle grenade adapted to be launched by the capture of a bullet, comprises a capturing part 8 which is deformed only radially when the bullet passes through without axial displacement in the direction of movement of the bullet. The capturing part 8 is mounted in a support element 3 which is also radially deformable and abuts a rear mass 10 of the grenade.
Patent GB-457057-A (GB)
Title: Improvements in and relating to optical projecting systems
IPC: G03B21/16
Filed: 1935-08-10
Abstract: 457,057. Optical-projection apparatus. CRAGGS, W., 41, The Drive, Wibbersley Park, Flixton, and OGDEN, C., Hilton Lodge, Prestwich, both near Manchester. Aug. 10, 1935, No. 22583. [Class 97 (i)] [See also Group XI] A reflector for pro jection apparatus has a tubular device detach ably secured in heat conducting contact with its rear surface, cooling fluid being caused to flow through the device. As shown the device 2 which may comprise one or more coiled or othe: tubes, is held againsthe reflector 1 by clip! 7 and 8 and carries jointing pieces 3 and 4 for connection to a liquid circulating system. The system may include a receptacle and a radiator and the liquid, which may be distilled water, is circulated by the thermo syphon principle or circulated forcibly.
Patent GB-1307112-A (GB)
Title: Method and apparatus for electrical signals
IPC: H04N9/64
Filed: 1970-05-11
Abstract: 1307112 Colour television MAGNAVOX CO 11 May 1970 [12 May 1969 2 Oct 1969 1 May 1970] 22658/70 Heading H4F An arrangement for improving the display of flesh tones in a television receiver of the NTSC type comprises a phase detector responsive to chrominance signals within a given phase range (say IŒ30 degrees) and controlling the generation of a correction signal which when combined with the chrominance signal produces flesh-tone representation by signals nearer or equal to I. In one embodiment (Fig. 2, not shown) signals at I + 30 and I - 30 degrees are gated with the chrominance signal and control the generation of signals which when added thereto produce a resultant close to I for tones near flesh, and much smaller phase changes for tones between 30 and 52À5 degrees away from flesh, other tones being unaffected. In another embodiment (Fig. 6, not shown) the chrominance signal (preferably after limiting) is added to a reference I signal and if the resultant has a magnitude exceeding a threshold (greater than that of the reference signal) then the received chrominance signal is blocked and the resultant of the addition (which has a phase angle nearer to I) is substituted.
Patent GB-162982-A (GB)
Title: Improvements relating to flow-meters for gases
IPC: G01F1/28
Filed: 1920-07-30
Abstract: 162,982. Davis, R. H. July 30, 1920. Measuring-apparatus.-In a flow-meter of the, type comprising a pivoted spring-controlled vane b constrictions i<1>, o<1> are provided in the inlet and outlet pipes.
Patent GB-936638-A (GB)
Title: Improvements relating to metal parts which are brought into contact with molten glass
IPC: C22C19/05
Filed: 1961-06-23
Abstract: An alloy for making a nozzle or other apertured body, such as a spinneret nozzle for molten glass (see Group XXIII), consists of:- .Cr.............17-22% .Ni (up to 22% may be replaced..... .by Co)...........70-75% .Al.............0.3-2.0% .Ti.............1.5-3.0% .Fe.............up to 2% .C.............up to 0.1%  Small quantities of Si may be present as a stabilizer and there may be unavoidable impurities.
Patent GB-627197-A (GB)
Title: Improvements in or relating to domestic plate racks
IPC: A47L19/04
Filed: 1947-08-18
Abstract: 627,197. Plate rack. MORRIS, T. J. Aug. 18, 1947, No. 22866. '[Class 28(ii)] In a folding-up plate rack, the pivoted or detachable sections pack up within one another so that the thickness is equal to or does not appreciably exceed the thickness of one section. The rack comprises at least a base B and a sloping grid front C and may also have a back A all pivoted together. The ends of the back and base are rigidly held together by the inclined grid C, also foldable for packing within a carton G as in Fig. 9. Fig. 7 shows the device partially unfolded in which the tie rod rollers E are gripped by one hand after which the parts A, B and C are pivoted to triangular shape in Fig. 4, the stub ends C<SP>3</SP> being located in notches D<SP>2</SP> of the back uprights A<SP>1</SP> and locked in position by a bail D swung up over the notches D<SP>2</SP> and then dropped down over them, the pin D<SP>3</SP> of D sliding down in the slots D<SP>1</SP>. A separate transverse tie bar F is then dropped into the notches B<SP>6</SP> of B and the transverse base strips B<SP>4</SP> are swung around until their end notches B<SP>5</SP> lock over the tie bar F which thereby supports them. The tie bars F and B<SP>3</SP> have freely rotating spacing rollers E of rubber &c. as in Specification 589,902. Hooks may be used in place of the bail D. The back A may also be formed as a grid, and may be folded down on the base B and the front C can then be folded on top, the lower ends of the front being curved to lie substantially flat thereon.
Patent GB-1395219-A (GB)
Title: Application of adhesive to a web
IPC: B31B50/62
Filed: 1972-05-16
Abstract: 1395219 Applying adhesive to sheets or webs WINKLER & DUNNEBIER MASCHINENFABRIK UND EISENGIESSEREI KG 16 May 1972 [17 May 1971] 22899/72 Heading D1L [Also in Division B2] Apparatus for applying a strip of adhesive to a sheet or web comprises a cylinder 1 mounted in a bore in a casing 3, an adhesive dispensing slit 11 in the external surface of the cylinder, the cam 7 having an adhesive exit slit 2, at least one of the slits being disposed at an angle to the axis of the cylinder so that upon relative rotation the slits progressively intersect along their lengths to disperse adhesive through the exit on to a substrate supported on a plate 14. Adhesive from a duct 6 passes through a radial slot in the roller and thence to slits 11. If the machine is stopped passages 12 at the ends of slots 11 communicate through passageways 21-24 to chambers 16, 17 and suction outlet ducts 25, 26 so that excess adhesive is drawn out. If no substrate is present adhesive falls through a slit 14' in plate 14 and is collected in a drain 13.
Patent GB-848572-A (GB)
Title: A system of conveying liquids or mixtures of liquids
IPC: G21C15/243
Filed: 1957-07-19
Abstract: 848,572. Nuclear reactors. DRASKY, J. July 19, 1957 [Sept. 11, 1956], No. 22916/57. Class 39(4). [Also in Group XXVIII] An injector for circulating liquids such as liquid metals or radio-active liquids is characterised in that the driving medium of the injector is provided by vapours of a second liquid mixed with the liquid to be pumped. In Fig. 1, two liquid metals are heated in the core of a reactor 1, the vapours of the liquid having the lower boiling point are collected in a space 5 and fed as the driving meium through a pipe 6 to an inlet nozzle 8 of an injector 7. This driving medium causes flow of the second liquid to a heat exchanger 3 in which it delivers heat to a further power generating circuit 4. The cooled second liquid then passes to the injector and mixes with the vapour of the first liquid thus condensing it and the mixture passes back to the reactor. In a modified form the pipe 6 may lead from the bottom of the reactor, the mixtures separating by gravity before reaching the core of the reactor and the liquid of lower specific gravity is heated by a device 9 to provide the driving medium.
Patent GB-781893-A (GB)
Title: Switching circuit for a two-mode synchronizing system in a color-television receiver
IPC: C03B33/027
Filed: 1955-08-09
Abstract: 781,893. Television. HAZELTINE CORPORATION. Aug. 9, 1955 [Aug. 10, 1954], No. 22940/55. Class 40 (3). [Also in Group XXXV] In a colour television system a single switching tube 30 changes over the action of the lowpass filter 27 of the automatic frequency and phase-control system for the colour reference oscillator 21 from rapid pull-in to relatively noise-free hold-in condition and in the former condition simultaneously disables the chrominance channel amplifier 19. As shown, quadrature and in-phase signals are applied from the reference colour generator 21 respectively to an A.P.C. phase detector 26 with output filter 37, 38, 39, and to a synchronism detector 29. During out of synchronism condition a voltage is derived from synchronism detector 29 to render conducting a normally blocked switching tube 30 forming part of a low-impedance alternating current path 40, 42, 43, partly shunting the A.P.C. filter 37, 38, 39, to increase the control sensitivity of the retroactive loop acting on the oscillator 21 through a reactance circuit 28 and, at the same time, anode current of the tube 30 applies negative bias to an R-C circuit 45, 46 in the grid circuit of the chrominance amplifier 19 to disable it so that only a monochrome picture is displayed. During synchronism a negative voltage from detector 19 blocks the tube 19 so that the A.P.C. filter 37-39 is not shunted and the chrominance amplifier again is operative. In a modification the H.T. operating voltage for the tube 30 is derived, not from the cathode of the amplifier 19, but from a rectifier, energized by line flyback pulses, deriving a negative voltage applied to the cathode of the tube 30. The synchronism detector 29 may be a phase detector of the balanced diode type, energized at burst repetition frequency, but producing a D.C. output only at phase quadrature synchronism.