baber/WOPTO huggingface dataset:
Patent GB-1154500-A (GB)
Title: Spectral Filter
IPC: C03C4/08
Filed: 1967-12-12
Abstract: 1,154,500. Coloured glass composition. CHICAGO DIAL CO. 12 Dec., 1967 [12 Dec., 1966; 23 Oct., 1967], No. 56344/67. Heading ClM. [Also in Division H1] A cathode-ray tube having a fluorescent screen supporting on the inner surface a mixture of blue, green, and red colour-emitting phosphors is combined with an optical filter for viewing the screen, the filter comprising neutral glass modified by inclusion of 3-5% weight of a Nd compound, calculated as the oxide in a sheet of glass 1/ 8  inch thick. The filter has substantially higher relative green and red transmission and selective yellow absorption than a neutral-density glass filter, and the light from the screen therefore exhibits enhanced intensity in the green, red and blue, and overall enhanced contrast and brightness. An exemplified filter - glass composition is composed, in weight per cent, of: 5i0 2 , 65-75; Na 2 O, 12-19; CaO, 6-13; MgO, 1-4; A1 2 0 3 , 0À2-4; Nd 2 O 3 , 3-5. If the thickness of the sheet differs from # inch, the proportion of Nd 2 O 3  is varied so that the amount per unit area is constant. The filter may be formed by incorporation of the Nd in the face-plate of the tube.
Patent GB-1462778-A (GB)
Title: Injection lubricator
IPC: G05G5/12
Filed: 1973-12-11
Abstract: 1462778 Wrenches WATTS REGULATOR CO 11 Dec 1973 [15 Dec 1972] 57411/73 Heading B3N [Also in Divisions G3 F1 and F2] In an air-line lubricator, the stroke of an oil piston 64a is adjustable by varying its position relative to an air piston 66 by means of a threaded rod 102. The rod 102 has an enlarged diameter 102g with a splined outside diameter which normally engages a splined bore 114b of a collar 114. The collar 114 also has a splined outside diameter 114a which engages with internal splines 112a of a fixed ring 112, endwise location being provided by a spring 115, thus locking the rod 102 against rotation. An adjuster cap 116 is used to unlock and rotate the rod 102 by axial followed by rotary movement. Fig. 1 shows the unlocked position where spring fingers 116c and 116d engage an inner groove 104d; in the locked position the fingers engage an outer groove 104e, while in both positions, splines in the bore of the cap 116 engage the external splines of the enlarged diameter 102g of the rod 102, thus allowing axial movement of the rod 102, the air piston 66 and the oil piston 64a.
Patent GB-1416160-A (GB)
Title: Electrical connections to shielded cables
IPC: H01R4/64
Filed: 1972-12-13
Abstract: 1416160 Electric couplings J T THOMPSON and G W GILLEMOT 13 Dec 1972 57511/72 Heading H2E A clip 20, scored at 22, is bent to a U-shape, and clamped by a bolt 25 to a cable jacket, burrs 24 penetrating into both the sheath 13 and the shield 12. The bolt 25 may provide an electrical connection, from the shield 12 to a terminal 40 for an earth wire 41, and a mechanical anchorage to an insulating terminal strip 30. Alternatively (Fig. 2, not shown) the clip 20 may connect the shields of two cables together. In one embodiment (Fig. 7, not shown) the bolt (25<SP>1</SP>) is permanently fixed to one leg of the clip.
Patent GB-1404029-A (GB)
Title: Magnetostrictive methods and apparatus
IPC: H04R15/00
Filed: 1972-12-14
Abstract: 1404029 Magnetostrictive motors INTERNATIONAL NICKEL Ltd 14 Dec 1972 [16 Dec 1971] 57836/72 Heading H2A [Also in Division H4] A magnetostrictive transducer, such as described in Specification 1,337,822, has a core of material whose Young's Modulus varies with magnetization intensity whereby the variation in the average magnetization intensity causes a change in resonant frequency of the core. A driving circuit energizes two coils to produce intersecting electromagnetic fields in the core and includes means for varying the average intensity of magnetization of the core and thus its resonant frequency. This permits varying the operating frequency (which nevertheless remains the resonant frequency) while retaining good electromechanical efficiency and linearity. The radiated frequency can be shifted for underwater purposes of encoding, identification or other communication. By varying the average intensity of a core to 1/3 and “ of saturation intensity the resonant frequency may be 15,500 Hz, 16,000 Hz and 15,000 Hz. For underwater sound communication the three different frequencies may actuate three different underwater acoustic receivers. At least one of the electromagnetic fields varies cyclically and the frequency of the cyclic variations may be varied, e.g. by using a variable frequency oscillator to supply alternate unidirectional pulses of current to the two coils. An adjustable D.C. source provides for variation of the average magnetization intensity in the core. The transducer structures may be identical with those of Specification 1,337,822. Alternatively the transducer may comprise an elongate solid magnetostrictive core 41 (Fig. 4) and orthogonal coils 42 and 43. Coil 43 is in two mutually parallel loops (see also Figs. 5, 6, not shown).
Patent GB-1176860-A (GB)
Title: Apparatus for Continuous Filtration.
IPC: B01D29/39
Filed: 1967-12-20
Abstract: 1,176,860. Filtration apparatus. VYZKUMNY USTAV ORGANICKYCH SYNTHES. 20 Dec., 1967 [21 Dec., 1966], No. 57857/67. Heading B1D. In a filter as illustrated in Fig. 1 (not shown), comprising a cylindrical housing (6), containing fixed hollow filter elements (7) and other filter elements (5) mounted on a rotary shaft (4), to which suspension is fed at one end (2) and from which thickened suspension is withdrawn through a valve or pump (15) at the other end, the torque applied to shaft (4) is monitored and compared with a preset level, and the difference is used to control valve or pump (15) to maintain the solids content of suspension in the housing around a fixed level. The valve or pump (15) may be electrically, hydraulically or pneumatically powered and may operate continuously at a variable rate or may be switched on or off as the difference reaches respective positive and negative predetermined values. Shaft (4) is turned by an electric motor, and torque may be measured directly, in terms of current or power consumption thereof, or indirectly with a dynamometer. The relative movement of elements (5, 7) creates agitation therebetween and prevents solids accumulating on their filtering surfaces. Either elements (5) or elements (7) could be replaced by non- filtering members. Elements (7) have individual filtrate outlets (8) and filtrate from elements (5) is discharged through hollow shaft (4).
Patent GB-1315136-A (GB)
Title: Preparation of a printing plate from a polymeric master plate
IPC: C08G75/00
Filed: 1970-12-07
Abstract: 1315136 Producing relief images W R GRACE & CO 7 Dec 1970 [10 Dec 1969] 57937/70 Heading G2C [Also in Division B6] Relief printing plates are produced by imagewise exposing a layer of a photo-curable composition comprising a compound containing at least 2 ethylenically unsaturated groups and a compound containing at least 2 thiol groups; the total number of unsaturated groups and thiol groups being greater than 4, removing the unexposed areas and then placing a mouldable material (a mat) on the relief image and moulding it to form a complementary relief image and using this mat to mould a second printing plate corresponding with the original plate. Generally the mouldable material is a resin impregnated cellulose fibres and the complementary relief image is produced by pressure and heat. The second plate is preferably metal e.g. lead alloy, rubber or a polymer. The photo-curable composition is preferably one disclosed in Specifications 1215591 and 1251232. Alternatively the second plate may be made from the same photocurable composition which is uniformly exposed during moulding.
Patent GB-1506564-A (GB)
Title: Odometers
IPC: G01C22/02
Filed: 1973-12-14
Abstract: 1506564 Odometers SMITHS INDUSTRIES Ltd 14 March 1975 [14 Dec 1973] 57952/73 Heading G4D The electronic counter 17 of an electric odometer is provided with a rechargeable battery 21 connected to the electrical system of the vehicle by a rectifier 20. The decoder 18 and display 19 of liquid crystal or other type may also be connected to the separate battery so the odometer works continuously or to the main circuit controlled by the ignition switch when only the counter continues to function; in the latter case they are connected via a rectifier 16 to ensure equal voltages.
Patent GB-1205080-A (GB)
Title: Improvements in or relating to roller bearings
IPC: F16C19/55
Filed: 1967-12-27
Abstract: 1,205,080. Bearings. TRW Inc. 27 Dec., 1967, No. 58710/67. Heading F2A. A roller bearing for providing support between a shaft 10 and a housing 15 which are relatively rotatable, comprises three radially spaced sets of rollers 11, 12 and 13, stabilizing rings 16 and an outer race 14. Each set of rollers comprise eight rollers and each roller is provided with a pair of stub-axles. The stubaxles of the rollers 11 engage the rollers 12; stub-axles 12a of the latter engage the stabilizing-rings 16, which also engage stub-axles 13a of the rollers 13; and the rollers 13 engage the outer race 14, which is attached to the housing 15.
Patent GB-1448379-A (GB)
Title: Video signal coupling circuit
IPC: H04N5/44
Filed: 1973-12-20
Abstract: 1448379 Input circuit for video amplifiers MULLARD Ltd 20 Dec 1973 59032/73 Heading H3Q A video signal coupling circuit for interfacing a television receiver with a video signal source comprises means responsive to a video signal waveform from the source for deriving from at least part of the waveform a bias signal which is to be applied to the television receiver together with the waveform and is for inhibiting the operation of the receiver in respect of its reception of another video signal waveform applied to it from another source, the coupling circuit including an opto-electronic coupler through which the video waveform from the first-mentioned source is passed from an input stage of the circuit before application to the television receiver. The video waveform is applied from terminal 1, Fig. 2 via a frequencycorrecting network R1, R2, C1, C2 to an amplifying transistor Tr1 feeding into light-emitting diode D2. Transistor Tr1 is fed from a "floating" power supply comprising diode D1 and capacitor C3, coupled to the secondary of a transformer (not shown). The signal picked up by light-sensitive diode D3 is amplified by transistors T, Tr2, Tr3, Tr4 and fed via capacitor C7 and diode 8 to terminal 9, which is connected to the video circuits of a television receiver at the anode of the detector diode (Fig. 1, not shown). The video signal (Fig. 31a) at the emitter of transistor Tr4 is also fed to a sync. separator Tr5, and the sync. pulses (Fig. 3(b)) appearing in the collector circuit are applied over capacitor C6 to a network comprising diodes D4, D5 and capacitor C5 which produces a smoothed negative bias (Fig. 3(c)) therefrom which is superimposed on the video output from capacitor C7. The combined output is applied to a transistor Tr6 forming a D.C. restorer restoring the composite video signal to the bias potential during the line sync. period (Fig. 3(d)). A filter comprising resistor R3 and capacitor C8 ensures that transistor Tr6 has high impedance at 6 MHz so that suppression of intercarried sound does not occur.
Patent GB-1361647-A (GB)
Title: Reproduction of images in colour
IPC: G03G15/08
Filed: 1971-12-20
Abstract: 1361647 Electro-photographic processes XEROX CORP 20 Dec 1971 [23 Dec 1970] 59117/71 Heading G2H A uniformly charged photo-conductor 10 is exposed to the image of an original to form an electrostatic latent image, is developed with toner of a first colour (preferably black) under the influence of an electrode held at a potential such that the first toner adheres only to the higher potential regions of the latent image and is then developed with toner of a second colour (preferably red, blue or green) under the influence of an electrode held at a potential such that the second toner adheres to the lower potential regions of the latent image. As shown, a developing roller 40 has mutually insulated segments to which different potentials can be applied by commutators 51. The roller 40 passes a toner reservoir 67, a vacuum nozzle 68 to remove toner agglomerates, a corotron 69, an electrically biased doctor roller 70, the image bearing member 10, an A.C. cleaning corotron 75 and a cleaning brush 76, appropriate potentials being applied to the segments of the roller as they pass these stations. Roller 40 applies the first toner and a similar roller applies the other toner. Exposure system Fig. 1, (not shown). An original (18) on a platen (19) is illuminated by a moving lamp assembly (20) and scanned by a lens (15), mirrors (16, 17) being positioned on respective sides of the lens.
Patent GB-1271907-A (GB)
Title: Level detector
Inventor: COIN RENE GEORGES
IPC: G01F23/18
Filed: 1970-12-15
Abstract: 1,271,907. Level indication. BRITISH PETROLEUM CO. Ltd. Dec.15, 1970 [Dec.23, 1969], No.59423/70. Heading G1H. In a pneumatic level detector in which an opening 5a of a probe 5, arranged at the level of a solid, liquid or foam to be detected is fed with pressure air from a pipe 1, receiving valve 3 and a needle valve 6, the arrangement is such that when the probe end 5a is blocked an increase in pressure occurs in a chamber 7c to distort a spring membrane 7 to close a nozzle 9a to cause an increase in pressure in chamber 11a to distort a diaphragm 11 against a spring 12 thereby opening an inlet valve 21a to allow air from pipes 1, 13 and inlet chamber 20a to enter an outlet chamber 20b and bellows 14 of a pneumatic switch 23 to move a control 15 from the position shown over to a conductor 1, to complete a circuit to a suitable audible or visual indicator.
Patent GB-1363929-A (GB)
Title: Acenaphtenes bearing groups containing oxygen as substitu ents
IPC: C07C45/50
Filed: 1971-12-23
Abstract: 1363929 Acenaphthene derivatives BADISCHE ANILIN- & SODA-FABRIK AG 23 Dec 1971 [29 Dec 1970] 59910/71 Heading C2C Novel compounds I in which X is CHO or CH 2 OH are prepared by reacting acenaphthylene with CO and H 2  at 50-150‹ C. and 100-1000 atmospheres in the presence of a rhodium carbonyl complex with or without the hydrogenation of the formyl group at elevated temperature and pressure in the presence of a hydrogenation catalyst. The 2,4-dinitrophenyl hydrazone of 1-formylacenaphthene is described.
Patent GB-1413318-A (GB)
Title: Profile determination
IPC: G01B15/02
Filed: 1972-12-27
Abstract: 1413318 Determining profiles and crosssections NIPPON STEEL CORP 27 Dec 1972 [29 Dec 1971] 59957/72 Heading G1A In an apparatus for determining the profile or cross-sectional shape of a strip of (moving) material 2, a detector 14 (photo-multiplier) having an elongated field of view, by means of a scintillation chamber 6 and light guides 9, receives radiation passing through the strip from a recriprocating X or γ-ray radiation emitter 8, whereby the output of the detector 14 at any portion of the scan of the strip 2 by the radiation emitter 8 is proportional to the thickness of the strip at that point. In order to prevent the detector being saturated with radiation when the radiation emitter 8 passes the edge of the strip 2, edge shields 11 of similar material to the strip are provided and they automatically follow any variation in the width of the strip as the strip passes the detector, or alternatively a shielding plate is provided adjacent the irradiation opening of the emitter together with a positional detector to detect the edge of the material and then activate the shielding plate to cut off the radiation. The detector 14's output is passed via a preamplifier and a logarithmic amplifier to a differential amplifier where it is amplified and compared with a predetermined value representing standard plate thickness and the differential amplifier output is fed along with the output of the positional detector to the X and Y axes of a recorder 7 graph plotting apparatus.
Patent GB-1457118-A (GB)
Title: Indicator device for pressure lubricating control units
IPC: F16N29/00
Filed: 1973-12-28
Abstract: 1457118 Measuring fluid-flow K H JENSEN & H P JENSEN 19 Dec 1974 [28 Dec 1973] 60014/73 Headings G1H and G1R In a pressure lubricating control unit indicator device in which a steel ball 14 or a float 28, provided at its lower end with an iron block or disc 30, is movable in a tapered or parallel bore 10 of a thick walled transparent tube 2 the arrangement is such that a sensor 18 or 18', operatively connected with an alarm device to indicate when the float descends to a low position, is imbedded in a recess (26), Fig. 2 (not shown), so as to resist an excess of pressure in the bore 10 of a magnitude corresponding to that which the tube 2 should otherwise be able to resist .
Patent GB-1433870-A (GB)
Title: Method of manufacturing a unit from which electrical contact  pieces can be cut
IPC: B23K11/00
Filed: 1972-12-30
Abstract: 1433870 Welding by pressure SAMUEL TAYLOR Ltd 21 Jan 1974 [30 Dec 1972] 60239/72 Heading B3R In making electrical contact material a layer of silver is provided on one face of a silvercadmium oxide tape, the silver layer is placed in contact with a metal strip and the tape and strip are resistance-welded together by being passed between the electrodes of a resistance welding machine to form material from which contact pieces may be cut. In an embodiment the silvered face of a silver-cadmium oxide tape is applied to a wider strip of bronze, phosphor bronze, brass or nickel silver and the assembly is welded between the rollers of a seam welder, the rollers being rotated continuously or intermittently whilst the current is intermittently interrupted or caused to oscillate between predetermined values. The welded unit is then cut into contact piece lengths. The tape may be bonded to a flat surface of the strip or within a groove in the strip so that the outer surface of the tape is flush with the strip surface.
Patent GB-1244866-A (GB)
Title: p-QUINONE-AMINIUM AND-DIIMONIUM SALTS AND THEIR USE AS INFRARED ABSORBERS
Inventor: SUSI PETER VINCENT
IPC: C08K5/29
Filed: 1968-12-18
Abstract: 1,244,866. Cellulose compositions; synthetic resin compositions. AMERICAN CYANAMID CO. 18 Dec., 1968 [21 Dec., 1967 (2)], No. 60251/68. Addition to 1,069,951. Headings C3F and C3P. [Also in Division C4] Compounds of the formula wherein A is and n is 1 or 2 and m is 1, or A is and m is 2, Y is H or N(R) 2  where R is hydroxyalkyl, and X- is an anion, which compounds have infra-red absorption properties, are incorporated into the polymeric and cellulosic substrates set forth in the parent Specification.
Patent GB-1374299-A (GB)
Title: Derivatives of 1,2,3,4-tetrahydroisoquinoline production of the same and composition thereof
IPC: C07D217/16
Filed: 1971-12-29
Abstract: 1374299 1,2,3,4 - Tetrahydroisoquinoline derivatives FUJISAWA PHARMACEUTICAL CO Ltd 29 Dec 1971 [29 Dec 1970 (5)] 60590/71 Heading C2C  Novel compounds of the Formula I wherein R 1  and R 2  are each hydrogen or C 1-6  alkyl, X is oxygen or sulphur, and R 3  is a phenyl radical substituted by up to three substituents selected from C 1-6  alkoxy, hydroxy amino, nitro, halo C 1-6  alkyl or halogen and salts thereof may be prepared by (1) cyclizing a compound II or a salt thereof with R 3 .X.CH 2 CHO or an acetal, hemiacetal of hydrate thereof; (2) reaction of a compound IV wherein Y is an acid residue or a salt thereof with R 4 XH where R 4  is an R 3  radical, but excluding amino; (3) for compounds I in which R 2  is hydrogen, reducing an appropriate 3,4-dihydroisoquinoline in which hydroxyl groups thereon are optionally protected, in which the protective groups are also liberated by the reduction; (4) removing protective groups from hydroxy groups in an appropriate tetrahydroisoquinoline derivative. Pharmaceutical compositions of the compounds I show relaxing activity on smooth muscles when administered orally or parenterally alone or with the usual excipients.
Patent GB-675904-A (GB)
Abstract: 675,904. Discharge apparatus. STANDARD TELEPHONES & CABLES, Ltd. July 21, 1950, No. 18292/50. Drawings to Specification. Class 39 (i). The cathode of a gas-filled cold cathode discharge tube is artificially roughened as by sandblasting, scribing or knurling. The electrodes which are parallel or coaxial may be made of pure nickel, the lower portion of the cathode being tapered and projecting into a box-like enclosure formed by the auxiliary starting anode. The filling consists of a mixture of neon, hydrogen, and argon at a pressure of 100 mm. of mercury.
Patent GB-745553-A (GB)
Abstract: 745,553. Gas turbine plant. DOWTY FUEL SYSTEMS, Ltd. Aug. 5, 1954 [May 26, 1953], No. 14657/53. Class 110(3) [Also in Group XXIX] In a fuel system for a gas turbine engine in which a fixed-stroke pump 11 supplies burners 13 of the spill type, and a throttle valve 15 actuated by a servo-piston 20 under the control of a vent valve 28 constituting an all-speed governor controls the flow in the spill line 14 leading back to the tank 12, overfuelling during acceleration is prevented by an acceleration. vent valve 33 on a lever 34 pivoted at 35 and subject to the action of the delivery pressure of the compressor of the engine acting in a bellows 36 in the valve closing direction and to the load of a spring connection 39 with the servo-piston acting in the valve opening direction. A bellows 37 is evacuated. The upper side of the servo-piston 20 is connected by a line 23 to the upstream side of a minimum pressure valve 22 and the lower side, with which the vent valves connect has a restricted connection 27 with the line 23. To accelerate the engine the valve 28 is closed resulting in an upward, closing, movement of the throttle valve in the spill line until the spring 39 balances the pressure in the bellows 36 when the vent valve 33 opens to limit the movement of the throttle valve. In a practical embodiment the bellows 36, 37 are situated in the discharge chamber of the throttle valve and act on the lever 34 near its fulcrum 35. Two springs in place of the single spring 39 act on the lever at a point between the valve sand the bellows. One of these springs, acting between the servo-piston and the lever, assists the bellows 36 whilst the other, connected between the lever and an adjustable, fixed abutment, opposes the bellows. The valve 15 is shaped to suit the engine characteristics and such shaping may be facilitated by using spring means of non-linear load/deflection characteristics.
Patent GB-2027469-A (GB)
Title: Roof ventilation tile
IPC: E04D13/00
Filed: 1978-07-20
Abstract: A roof ventilation tile 2, adapted to be fitted over an opening in a pitched roof to be sealed with a bituminous composition, has an upper marginal portion 14 to be inserted beneath existing roof tiles or slates above the opening, ventilation aperture 3 being covered by a raised cover portion 4 which over- hangs a lower portion 7 of the tile beyond the aperture and is spaced from the said lower portion by a ventilation gap 8, such that in use of the device the cover deflects rain water falling on, or running over, the device from the ventilation aperture while allowing air to pass through the ventilation gap and ventilation aperture to ventilate the roof-void. <IMAGE>
Patent GB-2027634-A (GB)
Title: Casting ceramic material
IPC: B28B1/26
Filed: 1978-08-09
Abstract: A mould for casting ceramic slip material comprises a portion 15, 16, 17, which is adapted for casting a hollow region in the article, such as a box flush-water rim 31 of a water closet bowl, having projections 30 made of non-casting material the free ends of which project into the mould cavity where the hollow cast region will be formed, the projections being removable after casting to leave precise, clean holes or slots in the wall of the hollow region. The projections which may be located in core pieces 15, 16, 17, for forming the bowl of a w.c., may be made of resilient material so that they flex during removal to avoid damaging the soft cast material. <IMAGE>