baber/WOPTO huggingface dataset:
Patent GB-1030652-A (GB)
Title: Electronic telegraph relay
Inventor: THAULAND TERJE
IPC: H03K3/013
Filed: 1963-03-08
Abstract: 1,030,652. Telegraphy; magnetic core circuits. STANDARD TELEPHONES & CABLES Ltd. March 8, 1963 [March 9, 1962], No. 9306/63. Headings H3B and H4P. A circuit for regenerating received pulses comprises a transformer having a first set of windings fed by the received pulses, a second set fed with pulsating D.C. or unsymmetrical A.C. and a third set feeding a toggle which regenerates the signals. The transformer comprises two magnetic cores K, K<SP>1</SP> biased to saturation in one direction (clockwise) by a transistor oscillator TRA which generates the driving current. In the case of double current working, when a space signal is received, current flows from terminal 1 through windings V1, V1<SP>1</SP> to terminal 2 via filter F which prevents the driving current influencing the telegraph line. This space signal biases core K into saturation clockwise and core K<SP>1</SP> anticlockwise. The effect of the driving current is to leave core K saturated clockwise but the field in the core K 1  reverses at a rate equal to the repetition rate of the driving pulses. Thus, pulses are generated in winding V4<SP>1</SP> which switch bi-stable circuit T, T<SP>1</SP> to the " space " condition. A mark signal causes pulses in winding V4 to switch the circuit to the mark state. In the case of single current working the signal is applied at terminals 1, 2 and a bias signal across terminals 3, 4. Spurious received pulses switch the cores temporarily, but the driving current switches them back to the correct condition immediately.
Patent GB-576863-A (GB)
Title: Improvements in pipe and tubing couplings
IPC: F16L19/05
Filed: 1944-05-16
Abstract: 576,863. Pipe joints. ARMSTRONG, J. J. V. (Parker Appliance Co.). May 16, 1944, No. 9326. [Class 99 (i)] In a pipe joint of the kind in which a flared pipe end 5 is clamped by a coupling nut 13 on to the conical nipple 3 of a coupling member 1. a sleeve 7 surrounding the tube has a flared end 8 engaging over the flared end of the tube, fits loosely within the nut, extends outwardly therefrom, and has a number of longitudinal slots extending from its outer end up to the head 8. A clamping ring 10 engaging the head 8 has a tapered surface 12 of slightly smaller angle than the engaging tapered surface 14 of the coupling nut so that the slotted portions of the sleeve are clamped on to the pipe. The outer surface of the ring is slightly tapered and is compressed against the internal surface of the nut when the joint is tight. In a modification, a thickened end of the sleeve and-the ring 10 have inter-engaging surfaces which are normal to the axis of the joint.
Patent GB-543545-A (GB)
Title: Improvements in power control circuit arrangements particularly for filament heatingfor electronic valves
IPC: H01J1/13
Filed: 1940-05-28
Abstract: 543,545. Electricity supply ; transformers. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and BURDICK, R. H. May 28, 1940, No. 9366. Drawings to Specification. [Classes 38 (ii) and 38 (iv)]  Transformer arrangements; automatic voltage or regulation.-A power control circuit, particularly for supplying filament heating current for high power valves, comprises a saturated core and a switch for associating a capacity with a winding on that core to constitute therewith a resonant circuit whereby the output of a transformer supplying the heating current, for example, may be changed during the starting of the valves to remove their current limitation imposed by the leakage reactance of the transformer. Resistances or inductances may be included in the resonant circuit and the capacity may be variable or comprise several condensers switched on in a time sequence. The saturated core may be part of the magnetic circuit of the transformer having two secondary windings in series opposition in a filament heating circuit, one secondary winding being on one unsaturated part of the core and the condenser may be switched into parallel with the secondary on a saturated part or into series with the primary winding. Alternatively the circuit of a tertiary winding on the saturated part of the core may be closed at will through a condenser. Separate transformers may be used with primary windings in parallel. In certain cases a single (saturated) transformer may be used. An unsaturated transformer may have a saturated choke in series with its primary and secondary windings, the condenser being switched into parallel with the choke. The condenser may be variable or several condensers may be switched in in timed sequence, one causing resonance. Specification 501,141 is referred to.
Patent GB-622826-A (GB)
Title: Improvements in electric discharge devices
IPC: H01J25/18
Filed: 1946-03-26
Abstract: 622,826. Velocity-modulated tubes. SOC. FRANCAISE RADIO ELECTRIQUE. March 26, 1946, No. 9378. Convention date, July 16, 1940. [Class 39 (i)] A velocity-modulated tube has electrodes of cylindrical form disposed concentrically round a cathode which can emit a number of electron beams radially propagated through slots in the electrodes. In the Figure, the cathode C emits four beams which are concentrated by control electrodes g' and pass through electrodes g<2>, g<3> g<4>, to the collector electrodes A. The space between g<2> and g<4> acts as one resonator, the width of g<4> as a drift space, and the space between g<3> and g<4> as another resonator. The Specification as open to inspection under Sect. 91 states that the electrodes A may be used to reflect the electrons, and that each beam may have a different function, i.e. amplifying, oscillating or frequency changing. This subject-matter does not appear in the Specification as accepted.
Patent GB-329753-A (GB)
Title: Improvements in or relating to swings and like oscillatory amusement apparatus
IPC: A63G9/20
Filed: 1929-03-23
Abstract: 329,753. Wicksteed & Co. (1920), Ltd., C., and Wicksteed, R. March 23, 1929. Swings.-A swing, operable by the hands or feet, comprises two plank-like members connected by links and adapted to swing, one below the other, in the plane in which their longitudinal centres lie about centres spaced apart vertically in that plane. The members 3, 7, are pivotably supported by pairs of rods 4, 11 respectively, and are connected by pivotal links 8 of length equal to the distance between the centres of oscillation 2, 12, thus forming a parallel link motion. The swing is operated by pressure of the hands on the link extensions 13, or of the feet on the lower member 7.
Patent GB-1125256-A (GB)
Title: Aluminium chlorohydroxide complexes
IPC: C07F5/06
Filed: 1967-02-28
Abstract: 1,125,256. Complexes of aluminium chlorhydroxide and phenolsulphonic acid or salts thereof. SUMMIT RESEARCH LABORATORIES. 28 Feb., 1967 [8 April, 1966], No. 9429/67. Heading C2C. [Also in Division C4] Novel complexes of aluminium chlorhydroxide and p-phenolsulphonic acid or a metal salt thereof in molar ratios of 1:1 to 12: 1 respectively are prepared by dissolving the compounds in the desired ratios in a co-solvent which is then evaporated. Antiperspirant and deodourant compositions for topical administration comprise an above novel complex and a carrier, base or propellant. The various forms include aerosols, sticks, pastes, creams, roll-on compositions and solutions.
Patent GB-1072062-A (GB)
Title: Apparatus for sensing holes
Inventor: WINTERBOTTOM JOHN FRANK
IPC: G06K7/10
Filed: 1964-03-05
Abstract: 1,072,062. Photo-electric sensing devices. ENGLISH ELECTRIC-LEO-MARCONI COMPUTERS Ltd. March 5, 1965 [March 5, 1964], No. 9431/64. Heading G4M. A tungsten-iodide lamp is housed in a cylindrical reflector having a narrow slit to produce a strip of light parallel to a row of perforations in a tape, light from the slit being collimated into individual beams by a plurality of non-reflecting bores in a metal block, and the area of each beam being a fraction, e.g. # of the area of a perforation so as to allow for misalignment of the tape. The tape is guided over a perforated plate on the other side of which is another block having bores leading to corresponding photo-cells.
Patent GB-165936-A (GB)
Title: Improvements in the cooling of electrical apparatus
IPC: H02K1/20
Filed: 1920-04-01
Abstract: 165,936. Schroeder, G. April 1, 1920. Armatures and field magnets, cooling.-A cooling-arrangement for the core of an electrical machine comprises a circulating-system for a cooling-liquid consisting of longitudinal tubular parts inserted in the core and interconnecting end parts, the tubes and end connections being so disposed relatively to the magnetic flux that the sum of the electromotive forces induced in them is approximately zero in any complete circuit formed by the system. In the arrangement shown in Fig. 1, the cooling-system comprises a series of pairs of tubes, the tubes c. d of each pair being placed close together and united at one end, the other ends being connected with the inlet and outlet chambers e, f. In a modification applicable to machines having more than one pair of poles, the tubes of each pair are separated by a distance equal to two pole-pitches. The tubes of one pair may be connected with the tubes of another pair, and the groups thus formed may be connected in series or parallel, giving a tube system analogous to a winding for half the number of poles. In another arrangement the tubes are arranged to resemble a closed armature winding having a fractional pitch as shown in Fig. 3, the pitch of the tube system being equal to half a pole-pitch. The tubes are preferably formed of a high-resistance metal or alloy and are separated from the core by a thin layer of insulating-material. The tubes may be made with a slight clearance in the ducts, and after being placed in position expanded by hydraulic or pneumatic pressure.
Patent GB-532024-A (GB)
Title: Improvements in and relating to processes of drying moist gases
IPC: B01D53/26
Filed: 1939-03-27
Abstract: 532,024. Ventilation. HIRSCH, M. March 27, 1939, No. 9475. [Class 137] [Also in Group XIII] A gas is dried by first cooling it by passage over coils or washing it with a weak brine solution to the wet bulb temperature, corresponding to the final required condition and then passing the gas over a hygroscopic material to bring it to the required humidity, e.g. by passage through a strong brine solution, the vapour pressure of which is equal to or lower than the required final vapour pressure of the gas.
Patent GB-1168963-A (GB)
Title: Frequency Converter Circuit
IPC: H03D7/12
Filed: 1968-02-27
Abstract: 1,168,963. Frequency converter. HITACHI Ltd. 27 Feb., 1968 [1 March, 1967], No. 9476/68. Heading H3T. The common emitters of a pair of transistors Q 2 , Q 3  are connected to the collector of a further transistor Q 1  which receives an input signal at its base of frequency fs, one transistor Q 2  of the pair having a resonant feedback circuit arranged between its collector and base to provide oscillation at a second frequency f 0 , and the other transistor Q 3  having an intermediate frequency f i  output circuit. The oscillator feedback circuit may involve a timed circuit L 0 C 0  connected to the base of Q 2  and transformer coupled to its collector; or a timed circuit (L 0 C 0 , Fig. 3, not shown) connected to the collector and coupled to the base. Diodes (D 1 , D 2 , D 3 ) supply base bias voltages to the transistors and have associated decoupling capacitors (C A , C B ) and one diode (D 3 ) also acts as a temperature compensating diode. PNP transistors may be used. The arrangement is said to dispense with the need in known circuits for a frequency trap (L 1 , C 1 , Fig. 1, not shown) and an isolating choke (L c ) in the base circuit of Q 2 .
Patent GB-1531985-A (GB)
Title: Technetium-99m
IPC: A61K51/00
Filed: 1975-03-06
Abstract: 1531985 Radioactive materials RADIOCHEMICAL CENTRE Ltd 20 Feb 1976 [6 March 1975] 9479/75 Heading G6R Anionic impurities are removed from an aqueous solution containing technetium in the form of a technetate by contact with a material which forms an insoluble compound with the unwanted anions; if cations other than hydrogen are present in the solution, they are removed by contacting the solution with a cation exchange resin in the hydrogen form or with zirconium phosphate, ammonium phosphomolybdate, or natural or synthetic zeolites, this step taking place before or after or at the same time as the treatment to remove anions, for example by using a cation exchange resin carrying silver which forms a precipitate with halide or phosphate anions and also removes alkali metal or ammonium cations. The starting solution may be obtained by elution of Tc 99 m from Mo 99 supported on an alumina column. The solution obtained may be passed through a bed of alumina, zirconium oxide, or manganese dioxide or an organic anion exchange resin to absorb pertechnetate ion which may be removed using isotonic saline solution. Suitable apparatus for carrying out the process is described with reference to a drawing.
Patent GB-973484-A (GB)
Title: Optical glass
IPC: C03C3/155
Filed: 1961-03-15
Abstract: An optical glass comprises, in percentages by weight, B2O310-20; La2O3 11-35; ThO215-50; Ta2O5 5-25; Nb2O5 at least 2; divalent metal oxide 0-10, the balance if any, consisting of other compatible constituents excluding GeO2. The following may also be included: WO3 and/or PbO, the content of Nb2O5 + WO3 + PbO being within the range 6-27; Al2O3 up to 15 with reduction of B2O3 content but not below 13; CdO or TiO2 up to 5, alkali earth metal oxide up to 5 in place of La2O3, La2O3 being > 11.  The content of La2O3 + + ThO2 is preferably within the range 47-62. A number of examples are given. The refractive index is > 1.900, the preferred glasses having nd > 1.962. Specification 462,304 and U.S.A. Specification 2,206,081 are referred to.
Patent GB-1527695-A (GB)
Title: Method of operating an animal-feeding-installation as well as an installation appropriate for carrying out this method
IPC: A01K5/02
Filed: 1977-03-07
Abstract: 1527695 Feeding animals CHORE-TIME NV 7 March 1977 [10 March 1976] 09524/77 Heading AIM In an animal feeding installation having a conveyor in a supply duct 1 supplying metering troughs 2 which each supply a preset volume of food to the animals, in order that the same weight of food should be supplied irrespective of changes in its density, every time the food supply is changed the food passing through the supply duct is sampled to determine its specific volume, and the setting of the metering troughs adjusted accordingly. The height of the metering troughs relative to the supply duct 1 can be varied to vary the volume of food deposited thereon. A device 3 for measuring the specific volume of the food is mounted beneath a valve controlled aperture in the supply duct and has a measuring cylinder 6 suspended from a counter-weighted lever. On opening the valve food enters the cylinder 6 until a predetermined weight is reached, whereupon the lever actuates a switch closing the valve. The volume of food is determined from graduations on the cylinder, and the metering troughs are adjusted so that a predetermined weight of food is delivered thereto. The metering troughs are periodically discharged into a margin or into the stable floor.
Patent GB-332911-A (GB)
Title: Improvements in the manufacture and production of derivatives of quinoline
IPC: C07D215/22
Filed: 1929-03-25
Abstract: 332,911. Johnson, J. Y., (1. G. Farbenindustrie Akt.-Ges.). March 25, 1929. 2: 4-Dioxyquinoline compounds are prepared by condensing aromatic amines with malonic esters in organic solvents boiling above 170‹ C., the alcohol formed being preferably distilled off during the reaction. An excess of the malonic ester itself may be used as the solvent, provided it is present in at least twice the amount theoretically required. Examples are given of the condensation of (1) alpha-naphthylamine with malonic acid diethyl ester, in the presence of nitrobenzene or of an excess of the malonic ester, to give 2.: 4- dioxy - alpha - naphthoquinoline. (2 : 4 - diketo - 1 : 2: 3: 4 - tetrahydro-alpha-naphthoquinoline); (2) m-toluidine with malonic acid diethyl ester in the presence of nitrobenzene to form a 2 : 4- dioxyquinoline methylated in the benzene ring.
Patent GB-1497288-A (GB)
Title: Telecommunication system
IPC: H04B5/00
Filed: 1975-03-07
Abstract: 1497288 Telecommunication system COAL INDUSTRY (PATENTS) Ltd 3 Feb 1976 [7 March 1975] 9567/75 Heading H4L In a telecommunication system of the kind in which signals can be transmitted from a base transmitter station Rx to a mobile station M, and from the mobile to a base receiver station Rx, through a radiating transmission line, two way operation using unidirectional repeaters is established by means of a pair of substantially parallel radiating lines A, B connected to the base transmitter and receiver respectively. Unidirectional repeater (amplifier elements) R1, R2, R3 &c. are connected between the lines at spaced intervals, alternate ones being in opposite directions, and "routing elements" Al, A2, A3; Bl, B2, B3 are connected in the lines, an element being connected in each line between each adjacent pair of amplifier elements. Each signal is thereby routed such that it travels along part of a first of the lines and then through a part of the second of the lines, transfer between the lines being effected through an amplifier element. Transmission from the base station is at a different frequency from the transmission from the mobile station and the routing elements may comprise filters, alternate filters passing alternate frequencies. Alternatively, the routing elements may be radio frequency switches opened and closed alternately.
Patent GB-1088264-A (GB)
Title: Abrasive articles and method of making abrasive articles
IPC: B24D18/00
Filed: 1965-03-05
Abstract: 1,088,264. Abrasive articles. W. J. ABERNATHY. March 5, 1965 [March 6, 1964], No. 9582/65. Heading B3D. An abrasive article is made by preparing from anodizable stock material a surface conforming to a desired contour, charging the surface with abrasive grit and anodizing the surface to bond the abrasive grit. A blank for a lap is cut or formed of anodizable material such #S aluminium or aluminium alloy. The working surface is lapped to a 4-6 microinch finish. For extreme precision work the blank is stress relieved and the surface again lapped to a 4-6 microinch finish. Abrasive, such as diamond, is pressed, air blasted or rolled into the working surface, which is then anodized. The surface is buffed or polished using an abrasive of smaller grit size than that in the surface. Between the steps of charging the surface with abrasive and anodizing, the surface may be given a thin coating of the same or a compatible anodizable material to fill any cavities around the abrasive.
Patent GB-987512-A (GB)
Title: Mandrels for use in the production of tubes
Inventor: TURLEY JOHN WILLIAM
IPC: B21B25/00
Filed: 1963-03-12
Abstract: 987,512. Rolling. T.I. (GROUP SERVICES) Ltd. Feb. 27, 1964 [March 12, 1963], No. 9699/63. Heading B3M. A plug 5 is secured to a mandrel 3 by means of a spigot 4 on one part engaging within a socket on the other part, either the spigot or socket having longitudinal slits 4b as to be resiliently radially deformable. The mandrel is of particular use in the production of tubes by skew rolling. Spigot 4 is screwed to the end of the mandrel and has an enlarged end 4a which engages within a cavity 5c in the socket of the plug 5. Alternatively the spigot may be provided on the plug and the socket may have longitudinal slits.
Patent GB-162898-A (GB)
Title: Improvements in rotary engines
IPC: F02B53/00
Filed: 1920-04-07
Abstract: 162,898. Gherassimoff, N., and Crookston, J. G. April 7, 1920. Non-electric ignition.-A rotary engine comprising a number of axially extensible piston blocks revolving in an annular chamber of varying axial length may be operated as an internal-combustion engine and the ignition effected by air which is highly compressed by the compressed air of the engine cylinder, and is made to blow over the fuel at the ignition point. Ports 27 in a distributing ring 26 carried round by the piston blocks 13 allow communication with the compressor 29 and the ignition devices 24, 24<1>. Fig. 5 shows the compressor. Air is supplied under pressure to the cylinder 29, 30, and the air contained in the small inner cylinder 33 is highly compressed by the plunger 32 of the piston 31. The under side of this piston is acted upon by the air compressed in the engine cylinder when' the port 27 registers with the neck 34 and the pressure is reduced to that of the atmosphere when the neck is closed. This closure is effected by a lever device 42 with its shaft 43 resistively mounted so that it can rotate about a tooth 41 formed on a rod 39 fixed to the piston 31 and so open a shutter 46 when the port closes. The compressed air from the cylinder 33 is led to the ignition device 24 shown in detail in Fig. 7. Rods 55, 56 fixed on a piston 49 open and close a shutter 57 admitting the compressed air on the upward stroke. On the downward stroke a shutter 65 which admits fresh fuel is similarly opened and closed. The piston 49 is controlled as before by a lever device 54 acting in conjunction with the port 27. The compressed air blowing on the previously admitted fuel contained in a rose pipe. or strainer 66, ignites it. A second ignition device 24 is used on reversing.
Patent GB-720211-A (GB)
Title: Improvements in or relating to valves
Inventor: DUNCAN JAMES FRANCIS
IPC: F16K7/16
Filed: 1952-04-21
Abstract: 720,211. Springs. NATIONAL RESEARCH DEVELOPMENT CORPORATION. April 21, 1953 [April 21, 1952; Nov. 7, 1952], Nos. 9995/52 and 28048/52. Drawings to Specification. Class 108 (3). [Also in Group XXIX] A helical steel spring loading a valve closure member is coated with polythene by heating it to a temperature above the softening point of polythene, immersing it in powdered polythene, and reheating it to obtain an adherent layer.
Patent HK-179995-A (HK)
Title: Automatic frequency control
Inventor: MARZ DANIEL J
IPC: H03J7/04
Filed: 1995-11-23
Abstract: An automatic frequency control tracks a television signal before and after a period of interruption. The automatic frequency control comprises a voltage controlled feedback loop including a voltage controlled local oscillator (18) and a mixer (20) for mixing the output of the oscillator (18) with the TV signal. The output of the mixer (20) is filtered to remove unwanted components of the mixed signal and to equalize sidebands of the television signal. The output of the filter (24) is supplied to a detector (30) which is tuned to a component of the television signal, and produces a voltage corresponding to the frequency of the component. The output of the detector (30) is supplied to the voltage control input of the local oscillator (18) to track the television signal component. Circuitry (71, 72) automatically senses the absence of the TV signal component from the mixer (20), and automatically applies a reference voltage (VR) to the voltage control input of the oscillator (18) when the TV signal component is absent. The detector (30) is operative to detect the television signal component following the application of reference voltage (VR to the oscillator so that when the television signal returns, the detector (30) is capable of tracking it.
Patent HU-T34873-A (HU)
Title: Regulating growth and fungicide preparates consisting of - as reagents - aril-oxi-piramidinile alcalones and process for production of aril-oxi-piramidinile alcanoles
Inventor: HOLMWOOD GRAHAM
IPC: A01N43/54
Filed: 1984-07-13
Abstract: Combating fungi and/or regulating the growth of plants with novel aroxy-pyrimidinyl-alkanols of the formula   <IMAGE>   in which R is optionally substituted naphthyl, or   <IMAGE>   Y each independently is halogen, alkyl, cycloalkyl, alkoxy, halogenoalkyl, halogenoalkoxy, alkylthio, optionally substituted phenyl, optionally substituted phenoxy, optionally substituted phenylalkoxy or optionally substituted phenylalkyl, or addition products thereof with acids or metal salts.