baber/WOPTO huggingface dataset:
Patent GB-1414169-A (GB)
Title: Photoelectric transducer
IPC: H01L31/00
Filed: 1972-10-05
Abstract: 1414169 Colour television EASTMAN KODAK CO 5 act 1972 [5 Oct 1971] 46036/72 Heading H4F [Also in Division H1] In apparatus (Fig. 1) for producing television pictures from cine-film each frame of the film is scanned in a TV raster pattern by a flying spot scanner tube 16 and associated lens system 18. Light from each spot in the film is uniformly distributed by a condenser 20 over the entire area of a filter 21 with red, green and blue sectors which are aligned with sectorial PIN photodetectors having a common earthed region 62 to produce modulated colour component signals which, after amplification at 24, 26, 28, are fed through colour processing circuits to the T.V. receiver. Alternative configurations for the photodetectors are described with reference to Figs. 4 and 5 (not shown).
Patent GB-965677-A (GB)
Title: New reducible oxidisable polymers
IPC: C08G63/82
Filed: 1961-12-22
Abstract: Polyvinyl acetals of formyl-2-anthraquinone may be prepared by reacting formyl-2-anthraquinone with polyvinyl alcohol in dimethyl sulphoxide in the presence of formic acid or a strong acid, or with a suspension of polyvinyl acetate in an aliphatic alcohol in the presence of a strong acid.  The preferred strong acid is sulphuric acid.  The polymers may be reduced with titanium trichloride and hydrochloric acid or with sodium hydrosulphite, and re-oxidized with air in the presence of sodium metaphosphate with the production of hydrogen peroxide. Examples describe the preparation of the polymers by reacting (1 to 4) formyl-2-anthraquinone with polyvinyl alcohol in dimethyl sulphoxide in the presence of sulphuric acid, and (5 and 6) formyl-2-anthraquinone with polyvinyl acetate in methanol in the presence of sulphuric acid, and the reduction and subsequent reoxidation thereof to provide hydrogen peroxide in good yield. Specification 965,678 is referred to.
Patent GB-1129525-A (GB)
Title: Dental filling material
IPC: A61K6/083
Filed: 1965-11-03
Abstract: 1,129,525. Dental filling materials. MINNESOTA MINING & MFG. CO. 3 Nov., 1965 [6 Nov., 1964; 12 Oct., 1965], No. 46563/65. Heading C3P. Dental filling compositions comprise, dispersed in a colourless transparent polymerizable hardenable binder, a filler material in the form of a multitude of colourless transparent particles, the particles and binder being of different refractive indices, whereby the composition, after hardening, is translucent and capable of mimicking surrounding tooth colour, the binder which is normally liquid being hardened to a solid having a glass transition temperature above the oral temperature. The filling material may comprise glass fibres, glass wool or lithium aluminium silicate. The binder is suitably a monomeric bismethacrylate obtained by interaction of glycidyl methacrylate and bisphenol A or other bisphenol, which may include a small amount of added glycidyl methacrylate. Boron-containing complexes or dimethyl-ptoluidine may be included in the compositions to accelerate hardening. Pigment, e.g. a fluorescent pigment, is not generally used but may be included if desired in some cases. To promote adhesion with the polymerizable binder, the filler material may be pre-treated with a priming material such as a complex of chromium trichloride with a carboxylic acid, or a silane. In examples, the filling compositions also include methyl methacrylate, with or without methacrylic acid, and benzoyl peroxide catalyst.
Patent GB-986170-A (GB)
Title: Drill heads
IPC: E21B10/48
Filed: 1962-12-11
Abstract: 986,170. Abrasive tools. DIAMANT BOART. Dec. 11, 1962 [Dec. 11, 1961], No. 46814/62. Heading B3D. A drill head for drilling rock comprises a number of sawtooth section radially-extending cutting sectors 3 containing abrasive such as diamond dust and mounted on a support 1, one flank 7 of each sector being less steeply inclined than the other flank 5 and disposed in advance of the said other flank in the direction of rotation of the drill. The flanks 7 forming working faces of the sectors are fed with a cutting fluid via a bore and grooves 4; the working faces may have straight or curved profiles as shown. The sectors may be formed separately and secured to the support or they may form part of a diamonded head having grooves 4 of less depth than the thickness of the head.
Patent GB-470441-A (GB)
IPC: D01H5/26
Filed: 1936-09-15
Abstract: 470,441. Endless - belt drawing - apparatus for rovings. CASABLANCAS, F. Sept. 15, 1936, No. 25135. Convention date, Oct. 2, 1935. [Class 120 (ii)] In endless-belt drawing-apparatus the intermediate rollers 3, 4, which carry the belts are lightly and preferably adjustably weighted to permit sliding of the fibres, the drawing taking place between the feed and delivery rollers which are weighted as usual to prevent sliding. The intermediate rollers 3, 4 are geared together, and are both fluted to prevent slipping of the belts, and are adjustably weighted, as by a draw rod 12 and lever 13, Fig. 3, or by a casing 22, Fig. 6, adapted to enclose the gears. The arrangement permits the reverse mounting of the belts shown in Fig. 10, and may be used in high-draft arrangements wherein the roving is subjected to two successive drawing operations.
Patent GB-1452292-A (GB)
Title: Urological endoscopic instrument solid state thermal overload indicator
IPC: A61B1/07
Filed: 1973-10-09
Abstract: 1452292 Resectoscopes J J IGLESIAS 9 Oct 1973 [20 Sept 1973] 47052/73 Heading ASR [Also in Division G2] A rectoscope comprises a telescope 16 extending longitudinally through the interior of a cylindrical beaked sheath 2, with an inflow conduit 46 for clear irrigating fluid formed between the telescope and the sheath and having a discharge port below and in front of the objective lens 22 of the telescope, and an outflow conduit 40 formed between the upper wall 42 of sheath 2 and a second wall 44 and being closed at its distal end by a closure 60 with an inlet port 62 in the wall 42 to the rear of the beak. The irrigating fluid is fed to inflow conduit 46 via a tube 8 and a stopcock 10 and is drained from outflow conduit 40 via a tube 48, a stopcock 50 and a disposable container 52 connected to a suction pump 58. A semicircular wire cutting loop 32 depends from parallel arms 30 carried on a hollow stem 28 slidable by abridge member 33 and axially movable against a spring 36 by a thumb grip 38 attached to a working member 14 slidable on runners 34. A connection 26 may be employed to transmit light from an external source via light conductors to the distal end of the instrument. In a second embodiment (Figs. 5-9, not shown) the outflow conduit is formed by the space between the telescope and a surrounding circular or semicircular tube, the inflow conduit being formed by the space between the tube and the sheath. In a third embodiment (Figs. 10-12, not shown) the telescope and cutting loop are surrounded by a metal tube held within a distally inwardly tapering sheath by a flange at the distal end of the tube, the .inflow conduit being formed by the space between the telescope and the tube and the outflow conduit being formed by the space between the outer wall of the tube and the sheath. In this last embodiment the cutting loop has its arms guided by a tube slidable on the telescope.
Patent GB-1480267-A (GB)
Title: Gas reactor generator apparatus
IPC: C10G9/00
Filed: 1974-10-31
Abstract: 1480267 Gas reactor MODINE MFG CO 31 Oct 1974 [4 March 1974] 47160/74 Heading BIF A gas reactor-regenerator for high temperature conversion of a reactant stream comprises a pressure vessel 10 including a lower integral section 11 and an upwardly extending inverted cap section, the said sections having adjacent edges joined by means comprising a resilient seal e.g. seals 20, an inlet 20, baffle means 22, outlet 26 and heating means for heating the lower portion of the vessel, e.g. furnace 18.
Patent GB-1482937-A (GB)
Title: Electrolytic manufacture of aqueous chlorate solutions
IPC: B01D61/44
Filed: 1974-10-31
Abstract: 1482937 Producing chlorate and related materials electrolytically HOOKER CHEMICALS & PLASTICS CORP 31 Oct 1974 [1 Nov 1973] 47168/74 Heading C7B Hydroxide, hydrogen, chlorine and chlorate are electrolytically produced from an aqueous alkali metal chloride solution using a cell divided by a cation permselective diaphragm made either of a hydrolyzed copolymer of a perfluorocarbon and a  fluorosulphonated perfluopovinyl ether or of a sulphostyrenated perfluoro ethylene propylene copolymer to produce hydroxide and hydrogen in the cathode compartment and chlorine and chlorate in the anode compartment, the anolyte being removed and further electrolyzed in a chlorate cell to convert remaining chloride therein to chlorate. The hydrolyzed copolymer may be of tetrafluoroethylene with a vinyl ether of Formula FSO 2 CF 2 CF 2 OCF(CF 3 )CF 2 OCF = CF 2 . The sulphonyl groups of the membrane may be converted to -SO 2 NH 2 . A membrane support of fibres or mesh may be used cemented or fused thereto by heat and pressure and made of e.g. PTFE, polypropylene, perfluorinated ethylene propylene copolymer, asbestos, Ti, Nb, Ta or a Pt group metal. The membrane may be hydrolyzed after emplacement on the support. The anode in the chloride cell may be mesh comprising a valve metal (e.g. Ti or Ta) coated with a Pt group metal, alloy and/or oxide which may contain a valve metal oxide and in the chlorate cell may be graphite or Pt-Ir optionally coated on Ti. The cathode in the chloride cell may be graphite or steel mesh or may be a Pt group metal coated on steel or Cu, and in the chlorate cell may be a steel cell wall. Mono- or bi-polar electrodes are specified. Chlorate and chloride from the (undivided) chlorate cell are separated out, and the latter may be returned to the first cell. Molten liquor may be returned to either or both cells. Anolyte and catholyte may be separately recycled for agitation and/or cooling. The cells may be refrigerated. Specified conditions are anolyte pH 3-7À5, temperatures below 105C, cell voltage 2À3-6V and current density 0À5-6 A/in<SP>2</SP>. The pH may be controlled using HCl manufactured by recombination of H 2  and Cl 2  produced. It is stated that the amount of chlorate made in the diaphragm cell may be controlled by altering the thickness and/or cation permselectivity of the membrane.
Patent GB-1179969-A (GB)
Title: Improvements in and relating to an Incineration Plant.
IPC: F23G5/00
Filed: 1968-10-04
Abstract: 1,179,969. Incinerators. CORNELSCHMIDT EISENUND STAHLWERK G.m.b.H. 4 Oct., 1968 [9 Nov., 1967], No. 47198/68. Heading F4B. A continuously operable refuse incinerator comprises an endless chain grate 2, running over rollers 17, 19, 18, the angle a between the lines 4 and 5 joining the centre parts of the rollers being under 140 degrees. Refuse from shaft 1 is combusted in firing zone 3, any unburnt portions of the refuse falling back into the firing zone as the upper leg of the chain grate commences its upwards climb towards roller 18. Fine ash drops through the grate into hoppers 7, 8. Rocket retainer 14 normally prevents refuse from falling off the front of the grate. To ensure complete combustion flue gases are returned to firing zone 3 through inlet aperture 9 and counterflowing secondary air is supplied through nozzle 11 adjacent pilot burner 10. An afterburner 12 and afterburner chamber 15  are provided. The grate drive is periodically reversed to allow accumulated incombustible material to fall off the front of the grate into hopper 8.
Patent GB-1356598-A (GB)
Title: Continuous casting apparatus
IPC: B22D11/06
Filed: 1971-10-11
Abstract: 1356598 Continuous casting SECIM 11 Oct 1971 [23 Oct 1970] 47311/71 Addition to 1279869 Heading B3F A grooved wheel-and-belt casting machine as claimed in the parent Specification has a-wheel disc 7 to which is secured a rim 1 U-shaped in cross-section with both inner and outer faces of the wall in the form of a U. There may be fins 13 on the outer face. Lugs 3, 4 (one of which may be integral with the disc 7) hold the rim 1 in position by the clamping pressure of a bolt 9 and resilient washers 10- The lugs, instead of being in opposed pairs, may be spaced around the periphery so that those on one side are in different locations to those on the other side. To expose the bottom of the rim exterior to cooling liquid from surrounding stationary coolant jackets there are (at least three) teeth 14 on the edge of hub portion 7 leaving spaces 15 for the liquid.
Patent GB-1067170-A (GB)
Title: Valve operating buttons for aerosol dispensers
IPC: B05B1/30
Filed: 1963-12-02
Abstract: 1,067,170. Discharging liquids by gaseous pressure. PRECISION VALVE CORPORATION. Dec.2, 1963 [Jan.4, 1963], No.47457/63. Heading F1R. [Also in Division F2] An aerosol dispenser valve operating button with means for controlling the rate of discharge, comprises a body 1 having a cavity 2 for engaging a valve stem, and a socket 3 with a manually rotatable plug 4 controlling flow through passages 9 to 12. Plug 4 is sealingly located in socket 3 by a rib 7, and has an operating arm (5), Fig.1 (not shown) movable in an arrow-shaped body recess (6). In the embodiment shown, plug passage 10 is movable out of registration with an offset body pressure 9. In another embodiment, Figs.3 and 4 (not shown), plug passage portion (11a) is of a width such as to the movable out of registration with discharge aperture (12a). In another embodiment, Fig.7 (not shown) body passage (9cc) of larger diameter permanently communicates with plug passage (10c), which is also selectively registerable with a smaller diameter body passage (9c). In another embodiment Fig. 16 (not shown), body passages (9g), (9gg) are both selectively registerable with passage arm portions (18), (19) of equal cross-sectional area. In another embodiment, Fig. 9 (not shown), plug passage arms (16), (17) of different crosssectional area are selectively registerable with a body passage (9d). In the embodiment of Fig.13 (not shown), plug passage (10e) is wedge-shaped, so that on rotation a varying area of cross-section is presented to body passage (9e). In the embodiment of Fig. 14 (not shown), a tapered plug passage portion (11f) is registerable with discharge aperture (12f).
Patent GB-1497661-A (GB)
Title: Devices for applying adhesives to a moving web
IPC: B05C5/02
Filed: 1974-11-02
Abstract: 1497661 Adhesive applicator MOLINS Ltd 31 Oct 1975 [2 Nov 1974] 47481/74 Heading D1L In the application of adhesive to "cork" web for use in joining filters to tobacco filled parts of cigarettes, using a slot nozzle applicator, the nozzle is closed externally and the web moved away therefrom. The closure member comprises a roll 14, having a resilient nylon sleeve, pivotally mounted at 18 on a pair of arms 16, the outer ends of which support a curved plate 22 which lifts the web away from the nozzle. The adhesive supply line 30 is connected to an expansion chamber 26, the expansion of which, actuated by pneumatic jack 28, draws adhesive thereinto and stops the adhesive flow to the nozzle whilst the roll 14 is moved into and out of the closure position. The slot nozzle is divided by a ridge 10 so that two strips of adhesive are applied to the web.
Patent GB-1426437-A (GB)
Title: Exchange switching system
IPC: H04Q3/00
Filed: 1972-10-16
Abstract: 1426437 Automatic exchange systems GTE INTERNATIONAL Inc 31 July 1973 [16 Oct 1972] 47662/72 Heading H4K In an exchange in which subscribers line circuits include line loop detectors including pulse plus bias gates pulsed by the line scanner and biased by the line potential, a normally inoperative filter is included in the bias connection and is enabled by a further bias potential supplied to the line from the exchange over line selector switches to prevent scanner noise currents reaching the line wires. The figure shows a line circuit LC the pulse plus bias gate of which has a pulse input C1 and a bias input R5, R4. The line circuits are arranged in a matrix and scanned in co-ordinate fashion by column drivers TR1 and row detectors TR2. The potentials are such that diodes D2 and D3 are initially blocked by the 50 volt subscriber line supply over resistor R2. When the subsubscriber TL goes off-hook the potential at V1 drops to 2 volts. Both diodes remain blocked but when the line circuit is scanned V4 drops from 10 volts (determined by Zener DZ) to earth and V2 momentarily goes to - 8 volts switching TR2 off Thus the exchange detects the line loop. At this time the exchange causes the switches SW11, SW12 to connect to the calling line. The auxiliary potential supplied over R8 and R9 is thus connected to the line, sending point V1 negative causing diode D2 which constitutes the filter to conduct. This filter absorbs scanning tone which no longer reaches the line and prevents line noise operating the gate. If the line is in the parked condition switches SW11, SW12 are restored and the scanning tone remains on the line to indicate to the subscriber that the handset should be replaced.
Patent GB-1249343-A (GB)
Title: Certain phosphorus-containing imino oxazolidines and their utility
IPC: C07F9/653
Filed: 1968-10-09
Abstract: 1,249,343. Pesticides comprising phosphoruscontaining imino oxazolidines. STAUFFER CHEMICAL CO. 9 Oct., 1968 [9 Oct., 1967; 13 Feb., 1968], No. 47836/68. Heading A5E. [Also in Division C2] Insects, acarids and plants are destroyed or controlled by means of compounds of the formula wherein R 1  and R 2  are independently loweralkyl -alkenyl -alkoxy, -alkylthio, or -alkenylthio; lower alkoxy-lower alkoxy, lower alkylthio-lower alkoxy, lower alkoxy-lower alkyl, lower alkylthio-lower alkyl, lower alkylthiolower alkylthio, lower alkoxy-lower alkylthio, R 3 , R 4 , R 5 , R 6  and R 7  are independently hydrogen, lower alkyl, lower alkenyl, phenyl or substituted phenyl in which the substituents are chlorine, fluorine, bromine, nitro or lower alkyl, and X is oxygen or sulphur.
Patent GB-1501715-A (GB)
Title: Rail truing machines
IPC: E01B31/12
Filed: 1975-11-21
Abstract: 1501715 Grinding rails in situ SPENO INTERNATIONAL SA and FRANK SPENO RAILROAD BALLAST CLEANING CO Inc 21 Nov 1975 [25 Feb 1975] 47920/75 Heading B3D A machine for trueing the bearing surface of a rail of a railway track comprises a frame movable along the rail and mounting a series of contact elements to be traversed one behind the other along the rail, a plurality of grinding means providing at least some of the elements, means for moving at least one of the elements in a direction perpendicular to the bearing surface to a predetermined position relative thereto, and means for locking said at least one element in the predetermined position.  In one embodiment, a number of grinders 6, Fig. 2, driven by respective motors 8, are mounted on a frame 7 which is oscillatable about a pivot 9 and movable relative to the rail to engage the rail with adjustable pressure by a jack 9<SP>1</SP>. The end grinders are fixed by screws 10 to the frame and the remaining grinders can be adjusted relative to the frame to conform to the curvature of the rail and can be locked in position by pneumatic or hydraulic locking devices 12. In another embodiment, four grinders are arranged in pairs, each pair being mounted on a respective beam pivoted to a frame and lockable in adjusted position. In a similar embodiment, the beams are replaced by parallel links. In a further embodiment, a frame 25, Fig. 6, has rollers 23, 24 at its ends, the axles of which serve as pivots for arms 26, 27 carrying grinders 21, 22 and lockable to the frame by locking means 29. Another embodiment consists of a vehicle 30 having wheels 33, Fig. 7, engaging the rail 41 and connected by a link 32 to a frame 31. A pair of grinders 34 are mounted on a beam 35 which is carried by a pivot 36 on the frame and can be locked by means 37. The frame also has a single wheel 43, or a plate 39 having wheels 40, engaging the rail, the plate being movable about a pivot 38 and lockable by means 42. In a final embodiment, a frame 44, Fig. 8, carries fixed grinders 45 and a central grinder 46 carried by a support 49 engaged by screws 48 of auxiliary motors 47 whereby the grinder 46 is adjustable relative to the grinders 45, the screws acting as locking means. A pointer 52 on the support cooperates with a scale to indicate the position of the grinder 46.  The frame may be pivoted through 90 degrees for grinding the inside of the rail head.
Patent GB-985264-A (GB)
Title: Improvements relating to sealing arrangements for annular parts
IPC: F16J15/10
Filed: 1963-12-04
Abstract: 985,264. Pipe connections; joint-making packing. DAIMLER-BENZ A.G. Dec. 4, 1963 [Dec. 8, 1962], No. 47982/63. Headings F2B and F2G. The two sealing faces 14<SP>1</SP> ,  14<SP>11</SP> of an annular part 14 for connection to a pipe line and mounted over a hollow screw 15 co-operate with sealing rings 11, 12 which are connected by a bridge-piece 13 to form a resilient stirrupshaped member 10. The rings may be of aluminium or copper.
Patent GB-1528913-A (GB)
Title: Rectifying circuits
IPC: G01R19/22
Filed: 1974-11-08
Abstract: 1528913 Measuring voltage SOLARTRON ELECTRONIC GROUP Ltd 15 Oct 1975 [8 Nov 1974] 48359/74 Heading G1U A rectifying circuit e.g. for use in an a.c. measuring device comprises a high-gain a.c. amplifier with two rectifying feedback paths each responsive to opposite polarity signals, and a variable impedance device effective to reproduce the current flowing in one feedback path, as an output signal. As shown in Fig. 1, the amplifier comprises a cascaded pair of common-emitter amplifiers TR1, TR2. A current source TR3 provides current for TR2 and the output lines 24, 26 which are connected by a diode D1. The rectifying paths comprise diode D2 (for negative input half-cycles) or the baseemitter junction of transistor TR4 (for the positive half-cycles) which connect to the base of TR1. The current flowing in TR4 is mirrored in the transistor TR5 to provide the output to a low-pass filter and meter (not shown). In a second embodiment, Fig. 2 (not shown), one rectifying path comprises the emitter-collector path of an appropriately biased inverse connected double-emitter transistor of which the second emitter forms the output.