baber/WOPTO huggingface dataset:
Patent GB-1187849-A (GB)
Title: Improvements in Colour Television Cameras.
IPC: H04N9/04
Filed: 1967-11-27
Abstract: 1,187,849. Colans television cameras. THOMSON C.S.F. 27 Nov., 1967 [14 Dec., 1966], No. 53952/67. Heading H4F. Red, green and blue signals 9, 10 and 11 from three carmera tubes and, if desired, a luminance signal 12 from a fourth tube are applied through channels 13-16 which have first control inputs 29-32, whereby the black level may be adjusted by a voltage from potentiometer 17, and second control inputs 33-16, whereby the gain may be adjusted by a voltage from potentiometer 18, the two potentiometers being ganged so that the adjustment may be made simultaneously by a single control means 21. The camera includes an iris diaphragm 2 which is controlled by a motor 3 in response to the instantaneous maximum of the colour signals 9-11 which is selected by a circuit 5. The selected signal has its black level established by a clamp 6 and is then peak detected at 7 and compared with a reference voltage to supply a differential voltage to motor 3 via amplifier 8. Diaphragm 2 functions to establish signals 9-12 with a desired range (e.g. 1 volt) from absolute black to peak white. Potentiometer 17 is adjusted to bring the minimum observable scene illumination level to absolute black level. The consequent reduction in the signals from the desired range is then offset by variation of gain by potentiometer 18. The nature of the variations which must be imparted by potentiometers 17 and 18 are discussed with reference to Fig. 2 (not shown). The variations differ and are allowed for in the mechanical coupling of the two potentiometers. Where the shift in the black level is less than 15% of the signal range, the variations to a close approximation are linearly related and the two potentiometers may be mounted for operation by a common spindle. Control means 21 may be manual or automatic in operation. In an automatic system, Fig. 4 (not shown), a circuit responds to the departure of the minimum signal level of a colour signal from absolute black level and operates through an amplifier to drive a motor which adjusts control means 21. The final colour signals are combined in a mixer 22 and applied through a switch 60, which alternatively selects the luminance signal, to an oscilloscope 23. The signal to operate the automatic control system may be obtained from the output of mixer 22. In another embodiment, Fig. 3 (not shown), the three colour signals are multiplexed as described in Specification 1,187,848 and applied through a common channel which is subjected to black level and gain control as described above for Fig. 1. In this embodiment the signal to operate the automatic control system may be the output multiplexed signal.
Patent GB-1484257-A (GB)
Title: Record-making press
IPC: B29C33/04
Filed: 1973-11-22
Abstract: 1484257 Record-making press DECCA Ltd 7 Nov 1974 [22 Nov 1973] 54212/73 Heading B5A A record-making press has a narrow hydraulic pressure chamber 4 to which hot and cold liquid is alternately fed to force a flexible thermally conductive diaphragm 1 and a matrix 2 outwardly whereby the matrix contours are impressed on a sheet of thermoplastics material located between the matrix and a cushion 3. Passages 18, 19 are provided for the hot and cold liquid respectively which flows through an aperture 16, an annular sintered bronze collar 11, an annular chamber 10 containing a turbulence producing structure 21 and an annular chamber 4 housing a turbulence producing structure 20. Such structures may comprise a mesh, and are located on opposite sides of a plate 6 flexibly connected to a flange 7 by a rubber ring 6a. A low thermal capacity cellular structure 17 with walls 17a is positioned on one side of a portion 15 of a plate 12.
Patent GB-1465701-A (GB)
Title: Electrophoretic suspension
IPC: G02F1/167
Filed: 1973-11-22
Abstract: 1465701 Electro-phoretic suspension; controlling light PLESSEY CO Ltd 17 Oct 1974 [22 Nov 1973] 54325/73 Headings G2F and G2H An electro-phoretic suspension, which is used in a display device, comprises a dispersion in a suspension medium of particles each including a body of an inactive organic compound at least partially surrounded by a dielectric, the body being such as to effect a density match between the medium and the particles. The bodies may contain lightreflective cores or be impregnated with fluorescent dye. Core materials which may be used are listed. Preferably the bodies are of poly (acrylonitrile), polyethylene or poly (trimethylpentene) and the dielectric is TiO 2 , SiO 2 , Al 2 O 3  or hydrous forms of these oxides.
Patent GB-1482539-A (GB)
Title: Method of removing nitrogen oxides from exhaust gases by reduction
IPC: B01D53/94
Filed: 1974-12-18
Abstract: 1482539 Reduction of nitrogen oxides NIPPON KOKAN KK 18 Dec 1974 [14 Jan 1974] 54775/74 Heading C1A Nitrogen oxides are removed from exhaust gases by reduction in the presence of ammonia over an essentially iron oxide catalyst consisting of particles within a range of 0À5 mm. to 10 mm. of at least one type of material selected from magnetically separated blast furnace dust, iron ore, fine iron ore, dust from a sintering plant, dust from a top blowing oxygen converter equipped with an exhaust gas recovery device, dust of Si-Mn-Fe ferrous alloy and dust of Mn-Fe ferrous alloy, this material having a nitrogen oxides removal rate of more than 50% at approximately 5,000 SV. A preferred range for the reaction temperature is from 300 to 370 C.
Patent GB-1446089-A (GB)
Title: Adducts of polyglycidyl compounds and phosphonoalkyl derivatives of cyclic ureides
IPC: C07F9/6506
Filed: 1973-11-29
Abstract: 1446089 Adducts of polyglycidyl compounds CIBA-GEIGY AG 29 Nov 1973 [12 Dec 1972] 55500/73 Heading C3B [Also in Division C2] Epoxide group containing adducts are prepared by reacting a polyepoxide with a compound in which Z is a N-free divalent radical to complete a five membered ring, A is C 2-12  alkylene (optionally interrupted by one or more ether oxygen atoms), R 1  and R 2  are optionally substituted alkyl or alkenyl groups or together denote a C 2-5  alkylene group. Examples of I are 3 - (dimethoxyphosphonoethyl) - 5,5 - dimethylhydantoin and its 3(-diethoxy-) analogue. The polyepoxide may be 1,3-bis-(5,5-dimethylhydantoinyl - 3) - propan - 2 - ol; 1,3 - diglycidyl- 5,5 - dimethylhydantoin; 3 - (3<SP>1</SP>,4<SP>1</SP> - epoxycyclohexyl) - 2,4 - dioxaspiro - (5,5) - 9,10- epoxyundecane or the diglycidyl ether of bisphenol A. Reaction may take place by heating in the presence of a catalyst, e.g. an alkali or amine. The adducts may be cured by conventional epoxy resin hardeners to obtain flame retardant resins.
Patent GB-1498631-A (GB)
Title: Magnetic materials with exchange anisotropy and process for their manufacture
IPC: C09D7/12
Filed: 1974-12-30
Abstract: 1498631 Magnetic pigments BASF AG 30 Dec 1974 [29 Dec 1973] 56001/74 Heading C7U A magnetic pigment comprises magnetic single domain particles which comprise Co and Ni with oxygen as the sole non-metallic element, consisting of a ferromagnetic phase Co 0À04-0À96  Ni 0À96-0À04  and an antiferromagnetic phase which is the oxidized form of this phase having a ratio remanence/ saturation induction greater than 0À2 and a coercive force greater than 16 KA/m measured in an applied field of 800KA/m, exhibiting exchange anisotropy and anisotropic remanence after saturation. The phases may contain Fe, Cr, Mn, Zn and/or Al in such amounts as not to interfere with the exchange reaction. The pigment may be made by superficial oxidation of the ferromagnetic particles and heating in an inert gas at 100-450C. The metallic particles may be made by reduction of mixed oxides (e.g. formed by heating precipitated mixed hydroxides).
Patent GB-1176478-A (GB)
Title: Photocopying Apparatus
Inventor: CARTER FRANK
IPC: G03B27/22
Filed: 1966-12-14
Abstract: 1,176,478. Contact printing apparatus. ADMEL INTERNATIONAL Ltd. Dec. 13, 1967 [Dec. 14, 1966], No.56003/66. Heading G2A. A photo-copying contact printing apparatus comprises a hollow translucent cylinder 2 rotatably mounted with its axis horizontal, a light source 1 housed in the cylinder and a flexible endless conveyer system 4 entrained around the bottom portion of the cylinder, in which apparatus there is an elongated member 20 adapted to float on an air cushion on the top of the cylinder parallel with the axis thereof, connected to a source of air pressure and having outlets 26 discharging through its bottom surface into a recess 27 formed by an elongated flexible skirt 33 and an elongated pad 30 which is sealed off by arcuate sealing strips at each end, said member 20 being such as to generate a zone 10 of high-pressure at the surface of the cylinder along its length, which zone is at or immediately in advance of the leading edge of the member 20 with respect to the direction of rotation of the cylinder, so as to strip original and photo-sensitive material from the cylinder. The photo-sensitive material is held to the belts 4 by suction as it travels up the back plate 11 and due to expansion of air rising up throat 23 and coming from chamber 21, the original is drawn is drawn away from the photosensitive material on to curved wall 32.
Patent GB-1202867-A (GB)
Title: Escape devices for delta wing aircraft
Inventor: DENNISON THOMAS ARTHUR HORWOOD
IPC: B64D25/14
Filed: 1966-12-14
Abstract: 1,202,867. Aircraft escape shoots. BRITISH AIRCRAFT CORP. Ltd. 12 Dec., 1967 [14 Dec., 1966], No.56025/66. Heading B7J. An escape device for delta winged aircraft comprises a shoot 10 having side portions 11 and hand grips, and a foldable U-shaped frame 20 provided with lugs 40 by means of which cables may be fastened to the shoot and to a friction reel 35 within the aircraft. In operation, the device is released from its stowed position within the aircraft and pushed out of the door 36. The cables 34 being wound on the reel 35 are short so that at first the shoot is draped over the wing. As the first person climbs down the wing, holding on to the shoot, the cables 34 unwind and lower the shoot to the ground. see Fig. 1 (not shown). The first person then pulls the shoot tight so that others may walk down the wing and slide on the shoot as shown. A foam rubber pad 37 prevents damage to the wing.
Patent GB-560409-A (GB)
Abstract: 560,409. Cylinders. JAMESON, J. L. Aug. 6, 1942, No. 11022. [Classes 7 (ii) and 7 (iii)] In a two-stroke engine, valve-controlled inlet and .exhaust port areas 8, 12 arranged one about the other are disposed at the inner end of the cylinder 1 and concentrically with the cylinder axis, the inlet valve 4 being opened while the piston moves on its exhaust stroke, so that the products of combustion already being swept to exhaust are assisted by the fresh charge. As shown, the inlet valve 4 is of the piston type and may be so actuated as to give it a quick opening and closing movement. The exhaust valve is a sleeve 10 having ports 11. The combustion chamber is connected to the working space 6 by a restriction 9, and the cylinder head 2 and a recess 14 in the piston are shaped as shown to'deflect the exhaust gases to the ports 12. The charge (air or combustible mixture) is supplied from supercharger through a manifold 5 and the combustion chamber is provided with a fuelinjection nozzle or a sparking plug. If fuel is injected, the recess 14 in the piston is deeper than that shown, to afford a well for the fuel. The engine may work on the cycle described in Specification 521,595.
Patent GB-1212342-A (GB)
Title: Improvements in differential amplifiers
Inventor: BANASIEWICZ HENRYK
IPC: H03F3/45
Filed: 1966-12-15
Abstract: 1,212,342. Transistor amplifying circuits. G. & E. BRADLEY Ltd. 15 Dec., 1967 [15 Dec., 1966], No. 56238/66. Heading H3T. A differential amplifier is provided with a unity gain buffer circuit coupling commonmade signals to its differential output. As shown, differential input signals are fed via resistors R 1  and R 1 <SP>1</SP> to the gates of FET'S 18, 19, having a common constant current source circuit 20 and drain circuits formed by transistors 33 and 34, coupled by transistors 36, 37; 23, 24 and 26, 27 to output terminals 28, 29. Negative feedback resistors R 2 , R 2 <SP>1</SP> are included. The common-mode signals at the sources of FET's 33, 34 are coupled via a unity gain amplifier 30 to the inputs of output emitter followers 26, 37 so that the common-mode output is no greater than the common-mode input. Common-mode signals are also fed via a source follower 32 to the bases of transistors 33, 34. A differential capacitor 38 connects capacitive unbalance. Reference is also made to the effect of amplifier 30 on the balance of the circuit.
Patent GB-1337119-A (GB)
Title: Process for the preparation of manganese-containing material  for use as a colouring agnet for clay
IPC: C04B33/14
Filed: 1970-11-27
Abstract: 1337119 Manganese-ore colouring agent KONINKLIJKE ZWAVELZUURFABRIEKEN 27 Nov 1970 [22 Dec 1969] 56492/70 Heading C1A Powdered manganese ore is formed into a mixture with water and formed into discrete, coherent, masses which can be used as a colouring agent for clay. The mixture may also contain a clay mineral as a binder or diluent optionally together with an organic binder and/or diluent. The total content of binder or diluent in the mixture is preferably up to 10%, based on the weight of powdered ore in the case of binders and the amount of water in the mixture is preferably 1-40% w.r.t. the weight of powdered ore. The preferred organic binder is carboxymethyl cellulose. Also claimed are ceramic articles containing said colouring agent and processes for the production of said articles.
Patent GB-1371329-A (GB)
Title: Production of synthetic fibres from profiled film
IPC: D01D5/42
Filed: 1970-11-30
Abstract: 1371329 Film fibrillation SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 26 Nov 1971 [30 Nov 1970] 56801/70 Headings B5A and B5B [Also in Division B6] Fibres are prepared by fibrillation of films of thermoplastic polymer by a process in which closely spaced, parallel, longitudinally extending grooves are impressed into the film at a temperature below the crystalline melting point of the polymer, and the film stretched longitudinally before being fibrillated. The grooves are formed by means of a profiling unit which consists of a plain roller 3 and a ridged roller 4, the ridges on ridged roller 4 being parallel and tapered to a rounded peak. The film is cast on to the surface of plain roller 4 at a temperature above the crystalline melting point of the component polymer. The film passes around plain roller 3 and through the nip between rollers 3 and 4 where the grooves are formed, the film being cooled to a temperature below the crystalline melting point before passing through the nip. The cooling may be effected by an an air blast 3<SP>1</SP>, or by internally cooled roller 3. The film is stretched between Godet assemblies 6 and 8, stretching being assisted by heating in the oven 7. Stretching can cause the fibres to separate, but fibrillation may be completed by known means at 9. Preferably an air blast fibrillator is used. The process is exemplified by the preparation of polypropylene fibres.
Patent GB-1399834-A (GB)
Title: Pharmaceutical compositions
IPC: A61K31/35
Filed: 1971-12-09
Abstract: 1399834 Pharmaceutical compositions FISONS Ltd 21 April 1972 [12 May 1971 9 Dec 1971] 14529/71 and 57169/71 Heading A5B Pharmaceutical compositions comprising a clear, sterile aqueous solution containing as active ingredient a therapeutically useful proportion of 1, 3-bis (2-carboxy-chromon-5-yloxy)-propan-2-ol, or a pharmaceutically acceptable salt thereof, or of 5, 5'-[ [5, 5'-(2-hydroxytrimethylene) dioxy] bis [4-oxo-4H-1-benzopyran-2-yl] ] tetrazole, or a pharmaceutically acceptable salt thereof, may be prepared (a) by dissolving the component(s) of the composition in water, filtering the solution and sterilising the filtrate or (b) by mixing two aqueous solutions of equal volumes one containing twice the desired final concentration of the active ingredient, chelating or sequestering agent, and other additives, and the other containing twice the desired final concentration of the preservative. The compositions may contain an effective proportion of a pharmaceutically acceptable chelating or sequestering agent such as sodium carboxymethyl cellulose, citric, tartaric or phosphoric acid or an amino carboxylate compound e.g. ethylene diamine tetraacetic acid or a salt thereof such as the di-sodium salt; an effective proportion of a pharmaceutically acceptable preservative such as sodium 2-(ethyl mercuriothio) benzoate, a quaternary ammonium compound e.g. cetyl pyridinium chloride, tetradecyltrimethyl ammonium bromide, benzyl dimethyl [2-[2-[p-(1, 1, 3, 3-tetramethyl butyl)] phenoxy] ethoxy] ammonium chloride or myristyl-γ-picolinium chloride, an alkyl benzyl dimethyl ammonium chloride, a mixture of compounds of formula: in which R is an alkyl group C 8 H 17  to C 18 H 37 ; 2-phenyl ethanol; sodium chloride; and/or a buffer e.g. sodium dihydrogen orthophosphate and di-sodium hydrogen phosphate. The compositions are used as eye drops in the treatment of vermal kerato conjunctivitis, the ocular symptoms of hay fever and/or marginal corneal infiltration and as, a nasal spray in the treatment of hay fever. Reference has been directed by the comptroller to Specification 1144905.
Patent GB-1145349-A (GB)
Title: A magnetic recording medium
IPC: C09D5/23
Filed: 1967-12-18
Abstract: 1145349 Magnetic structures FUJI SHASHIN FILM K K 18 Dec 1967 [12 Jan 1967] 57383/67 Index C3R R1 R2 R22 R29 R32 L4H C33X C33A C19 C6X L6G L4A C1 L2X C8P C8B C4 C9B C12 B29. Index C3B 1 L4H C33X C33A C19 C6X L6G L4A C1 L2X C8P C8R C4 C9B C12 C29  A magnetic recording medium comprises a layer of magnetic particles dispersed in a binder, having non-magnetic abrasive particles with a Mohs hardness greater than 6 and a size of 0À5-5Á, at least at the surface thereof. The abrasive particles may be Cr 2 O 3 , Al 2 O 3 , SiC, garnet, or SiO 2 . They may be mixed with the coating composition containing the magnetic particles and applied as a 10Á layer to a polyethylene terephthalate base, or may be applied as a 4Á layer over a 6Á coating containing only magnetic particles. The binder exemplified is a mixture of a vinyl chloride-vinyl acetate copolymer, an epoxide resin, and a polyamide resin, and containing oleic acid; others referred to are polyurethane, urea, melamine, phenol, and nitrocellulose resins. The magnetic particles may be γ-Fe 2 O 3  (0À3 x 0À05 x 0À05Á), Fe 3 O 4 , CrO 2 , Co ferrite, Ba ferrite, Fe-Co, Fe-Co-Ni, or Fe-Co-Cu.
Patent GB-1407848-A (GB)
Title: Frame assembly
IPC: E06B3/984
Filed: 1972-12-13
Abstract: 1407848 Frame joints SVENSK DORRTEKNIK AB 13 Dec 1972 [13 Dec 1971] 57546/72 Heading E1J [Also in Division F2] A frame comprises elongate elements 1, 5 each having a projection 4, 6 extending inwardly of the frame, the end of one member 1 being of reduced thickness to provide a surface 2 for abutment of the end of member 5 and a recess 2' to receive projection 6 of member 5. Recess 2' is bounded by portions (3, 3'). Door sill 1a is shorter than lintel 1 and has a recess 2" only. The height of the frame is adjusted by cutting posts 5.
Patent GB-1350107-A (GB)
Title: Stranding of elongate elements
IPC: H01B13/02
Filed: 1971-12-10
Abstract: 1350107 Stranding apparatus SIEMENS AG 10 Dec 1971 [25 Jan 1971] 57605/71 Heading D1T [Also in Division H1] Stranding apparatus comprises devices 5 for S-Z stranding elements 1, equipment 6 for S-Z stranding the resulting units 2, and hauloff means in the form of roller 7 rotated about its own axis to haul elements 1 and units 2 and rotated about the stranding axis of equipment 6 to twist the units before equipment 6. Devices 5 and equipment 6 each include a store for the running elements or units. Roller 7 may be replaced by a pair of opposed endless belts. Alternatively, each device may have separate haul-off means. Equipment 6 may comprise, Fig. 2, stores 15, 16 for the units which rotate in opposite directions about the stranding axis and whose capacity is cyclically varied, by movement of their adjacent end rollers, so that an increase in the capacity of store 16 is matched by a decrease in the capacity of store 15. Driven roller 18, mounted on rotating store 15, forms the haul-off means. Devices 5 may also each comprise stores 15, 16, in which case the hauloff means is formed by a store-mounted, power-driven roller 21.
Patent GB-1185320-A (GB)
Title: Improvements in and relating to Support Means for a Nuclear Reactor.
IPC: G21C5/06
Filed: 1967-12-19
Abstract: 1,185,320. Reactors. SOC. DES FORGES ET ATELIERS DU CREUSOT. 19 Dec., 1967 [30 Dec., 1966], No. 57694/67. Heading G6C. In a gas-cooled reactor, the reactor core rests upon a cellular support above the heat exchangers. The support is formed of vertical tubes containing graphite blocks shaped to permit the flow of gas downwards from the core to the heat exchangers. The hexagonal tube 1 is secured between the top and bottom plates 2, of the support, and contains the graphite bricks 8a, 8b which are shaped to leave the gas flow channels 11. The latter are offset by 60 degrees between the bricks 8a, 8b and the two sections are coupled by the deflector 12. The stud 5 supports a core column and the sleeve 7 houses a shock absorber provided in case of failure of the fuel elements. The rate of gas flow may be determined by the opening 7a. The deflector 15 directs the gas to the outlet aperture where the failed element detector 9 is mounted. In an alternative arrangement, the tubes 1 are cylindrical and the graphite is in the form of a cylindrical bar having helical channels for gas flow.
Patent GB-1194989-A (GB)
Title: Improvements in or relating to Processes and Circuit Arrangements for Magnetic Recording Systems
IPC: G11B5/09
Filed: 1968-12-05
Abstract: 1,194,989. Electric digital data storage. SIEMENS A.G. 5 Dec., 1968 [6 Dec., 1967], No. 57806/68. Heading G4C. System for recording data in magnetic layer stores the store being saturated in a positive or negative direction according to the data stored has the writing currents producing the saturation arranged to be unequal in magnitude. Write currents are applied to a recording head S from a supply U via a potentiometer R5 and the resistors R3, R4 or R1, R2 depending on switches E1, E2 determining whether a "I" or "O" is to be stored. The writing resistors R1 and R2 or R3 and R4 are arranged in the ratio 1: 3 and the potentiometer is three times the total value of each writing resistor. In the centre position of the potentiometer the two currents are equal and displacement of the tapping decreases one current and increases the other. The data is written on tape already saturated in one magnetization direction.
Patent GB-1287267-A (GB)
Title: Improvements in or relating to a fastener securement device
Inventor: WYLDE JOSEPH ROWLAND
IPC: A44B11/04
Filed: 1968-12-05
Abstract: 1287267 Strip fastenings; buckles SELECTUS Ltd 4 Dec 1969 [5 Dec 1968] 57853/68 Headings E2S and E2A  A two member strip fastener comprising a large number of filamentary upstanding element on a base member, engageable with like or co-operating elements on the other member is combined with a buckle type clip 1, to improve its holding ability. The clip comprises at least three parallel arms 4, 5, 6 joined by ends members. In alternative embodiments other buckles are used.