baber/WOPTO huggingface dataset:
Patent GB-1502509-A (GB)
Title: Decoder for the secam colour television system
IPC: H04N11/18
Filed: 1975-12-22
Abstract: 1502509 Colour television THOMSON-CSF 22 Dec 1975 [24 Dec 1974] 52506/75 Heading H4F A decoder adapted for operating with a colour television signal of the S.E.C.A.M. system, includes a blocking arrangement for blocking the colour circuits of the decoder, said blocking arrangement including a first blocking circuit for blocking said colour circuits for each active field duration following a vertical blanking interval in the course of which the absence of the S.E.C.A.M. chrominance subcarrier has been established during a time period when it is normally present for transmitting identification signals in a S.E.C.A.M. colour television signal, and an auxiliary blocking circuit for blocking said colour circuits on detection of absence of the subcarrier during an active field period. An input 1 of the chrominance circuits of the decoder supplies a de-emphasis filter 2 which supplies in parallel a direct channel constituted by an amplifier 3 and a delay channel comprising a one-line delay 4 and an amplifier 5. Amplifiers 3, 5 supply two inputs of a double switch 6 controlled at the line frequency to direct its input signals to two channels according to whether the blue or red chrominance signal is involved, each channel including a frequency demodulator 8, 9, and a deemphasis filter 10, 11. Filters 10,11 supply a matrix 30 delivering the three chrominance signals. The absence of the sub-carrier during an active field period is detected by detectors 12, 13 corresponding to the direct and delay channels and supplying trigger circuits 14, 15 respectively. The outputs of circuits 14, 15 supply an AND gate 7, which is followed by a NOT circuit 16, circuit 16 delivering a 1 signal in the absence of the direct and/or delayed subcarrier. A device 17 stretches by 3 Ás the signal from circuit 16 (to compensate for the lag produced by filters 10, 11) and supplies an element 31 for blocking inputs provided down-circuit of the video-frequency de-emphasis operation. The output from AND gate 7 also supplies a switch 18 supplied at its control input 63 with a field frequency control signal. The signal produced by switch 18 if the subcarrier is present is applied to a bi-stable trigger 19 whose second input 64 receives vertical sync. pulses and whose output is also applied to element 31.
Patent GB-1058860-A (GB)
Title: Expanding envelope
IPC: B65D5/20
Filed: 1964-12-29
Abstract: 1,058,860. Expandable envelopes. TENSION ENVELOPE CORPORATION. Dec. 29, 1964 [Dec. 30, 1963], No. 52677/64. Headings B8K and B8P. An envelope for holding cards comprises a one-piece blank (Fig. 3, not shown) having panels (3, 4) to form the front and back, and side flaps (8, 9) hinged to the portion (3) with gusset-forming folds (12, 13). The marginal edge portions of the side flaps have stripes of adhesive (16) for securing to the panel (4). A lid is hinged to the panel 3 and provided with adhesive (17). In a further embodiment (Figs. 8, 11, not shown) for holding a thicker pile of cards, the side panels connecting the front and back panels (31, 32) have in addition to a median fold (48) (corresponding to the fold (12) in Fig 3) two parallel folds (46, 47), so that when squared the portions (49, 50) of the panel between the folds (46, 47, 48) lie flat against the portion (57) which is glued at (52) to the panel (32). The panels (31, 32) are hinged to a bottom flap by folds (36, 37) the bottom being gusseted with a fold (54).
Patent GB-1316364-A (GB)
Title: 5h-dibenz-b,f-azepine derivatives and the preparation thereof
IPC: B01J23/00
Filed: 1970-05-28
Abstract: 1316364 5H - Dibenz[b,f] - azepine derivatives ROUSSEL UCLAF 28 May 1970 [28 May 1969] 52982/72 Heading C2C The invention comprises compounds of the formula wherein R 1  is C 1 -C 4  alkyl, "alk" is C 1 -C 4  alkyl, and X and X<SP>1</SP> are each hydrogen or halogen. They may be obtained by reacting a compound of the formula wherein R 2  is C 1 -C 4  alkyl, with a C 1 -C 4  alkyl chloroformate. Examples are given for the preparation of the compounds.
Patent GB-536249-A (GB)
Abstract: 536,249. Esters. MERCK & CO., Inc. Aug. 21, 1939, No. 24012. Convention date, Sept. 3, 1938. [Class 2 (iii)] 2- Methyl-3- methoxypyridine-4:5-dicarboxylic acid dimethyl ester is prepared by heating the acid with methyl alcohol and a mineral acid, or by treating it with diazomethane. The ester, which may be converted into its hydrohalide salts, is useful in the synthesis of Vitamin B6. An example is given.
Patent GB-1196039-A (GB)
Title: Method of Making a Bearing Assembly.
Inventor: KUHN WILLIAM ADAM
IPC: F16C23/04
Filed: 1967-11-28
Abstract: 1,196,039. Bearings. LEAR SIEGLER Inc. 28 Nov., 1967, No. 54174/67. Heading F2A. [Also in Division B3] A bearing assembly is made by placing an annular race blank 22<SP>1</SP> having a cylindrical inner surface and a circumferential groove in its outer surface around an inner bearing element 18 and deforming the blank 22<SP>1</SP> to form a cylindrical outer surface and an inner surface of concave curvature in mating conformity with the outer surface of the element 18. The race blank 22<SP>1</SP> having a layer of low friction material 28 on its inner surface and a spherical ball 18 are mounted on a pin 50 of a ram 52 which is forced through a swaging die 42 to form the assembly, Fig. 4. The assembly may be mounted in a rod end coupling the leading and trailing corners of the race 22 being machined, and is retained in position by deforming the edges (30) (Fig. 2, not shown) of the portion (12) of the coupling.
Patent GB-1498183-A (GB)
Title: Vacuum envelopes
IPC: H01H33/66
Filed: 1974-12-17
Abstract: 1498183 Moulding glass GENERAL ELECTRIC CO 17 Dec 1974 [26 Dec 1973] 54376/74 Heading C1M A centrifugally cast hollow glass vacuum envelope 10 has a metal ring 14 with outer part 20 embedded within the wall of the envelope but not extending to the exterior wall, the ring 14 having an inner part 6 with a welding flange 18 in the hollow centre of the envelope. To aid embedding of the ring 14, an outer flange 24 and a plurality of holes 25 may be provided on and in the outer part 20. Alternatively notches in a flat ring may be provided. The method of embedding the ring 14 in the envelope 10 comprises a centrifugal mould 26 having a cap 34, with central bore 42 through which the mould is charged with molten glass, the cap 34 having ring holding means 38 for supporting ring 14 in the required position in the mould 26 and then rotating the mould 26 as by mounting on the shaft 28 of a motor 30. Preferably the mould 26 has grooves 36 for holding an upper end flange 22 and a lower end flange 22 is held against the mould 26 by a block 32. The mould 26 may have inner corrugations to provide exterior rings 12 on the envelope 10. As shown in Fig. 10, the holding means 38 comprises a plurality of magnetic devices 40 to attract the flange 18. Alternatively, spring mounted fingers may be pushed through the opening in ring 14 and under flange 18. In a further embodiment, a disk member secured at the lower end of holding means 38 has spaced slots in the outer edge which can be positioned, by slight rotation, under inwardly directed flanges on the inner flange 18, which may be ground off at a later stage.
Patent GB-1429630-A (GB)
Title: Method of repairing a defective interconnection between battery plates in a pair of adjacent cell compartments of an electric storage battery
IPC: H01M50/529
Filed: 1972-11-24
Abstract: 1429630 Welding by fusion and pressure JOSEPH LUCAS (BATTERIES) Ltd 19 Sept 1973 [24 Nov 1972] 54516/72 Heading B3R [Also in Division H1] In repairing a defective interconnection between battery plates in a storage battery, the interconnection comprising a spigot 16a extending between a pair of extensions from conductive bars 15, 16 joined to the plates, a bore 27 is formed in the spigot, a conductive slug 28 is inserted in the bore and the slug is welded to the extensions. The battery plates are arranged in cell compartment in a polypropylene box 11 separated by walls 12 and each wall 12 has a hole 18 therein through which extends the spigot 16a integral with the extension from bar 16 into contact with the other extension and electrodes 21, 22 are used to resistance weld the spigot to the other extension. If such connection is faulty a punch and die is employed to produce a bore 27 therethrough and a lead alloy slug 28 is inserted in the bore and welded at its ends to the extensions by lead burning. The slug is then resistance welded to the extensions by the electrodes 21, 22. The spigot may be separate from the extensions initially, possibly secured in apertures in the extensions, or may be provided by lugs integral with both extensions and resistance welded together and the lead burning may be omitted. The bars 15, 16 may be of lead-antimony alloy.
Patent GB-1456019-A (GB)
Title: Decoration of articles
IPC: B44D2/00
Filed: 1972-11-25
Abstract: 1456019 Coating BEADEX Ltd 23 Nov 1973 [25 Nov 1972] 54556/72 Heading B2E A surface is decorated by applying a polyester resin from which air has been removed onto discrete areas of the surface and allowing or causing the resin to harden. The resin may be spun in a centrifuge to remove air whilst being contained in a flexible conical bag. The tip of the cone is then cut off to provide an opening through which the polyester resin may be extruded. A pattern may be built up of one or more extrusions of one or many different colours. The surface may be a fabric, paper, plastics sheet, wood leather. A gem or sequin may be pressed on to a bead of the resin applied to a fabric and held there whilst the resin hardens.
Patent GB-1424933-A (GB)
Title: Apparatus for separating fluids
IPC: G01N30/02
Filed: 1973-11-23
Abstract: 1424933 Gas diffusion; reverse osmosis RHONE-POULENC SA 23 Nov 1973 [24 Nov 1972] 54598/73 Headings B1L and B1X An apparatus for the selective separation of a gas from a mixture of gases comprises a casing which includes a jacket 1 and end walls 2 and 3 which is divided into compartments 21 by porous discs 8 held by rings 7 which have right-angled passages to allow communication between adjacent compartments so that gas can flow from the inlet 4 to the outlet 5 sinuously through the compartments in the direction of the arrows. Each porous disc is set in a recess 10 formed between adjacent rings and is covered by a membrane. The rings 7 have radial grooves leading to peripheral channels which allow the permeate which enters the discs to pass to a discharge outlet in the end wall 3. The apparatus may be used for reverse osmosis.
Patent GB-1362393-A (GB)
Title: Preparation of phenolic resin foams
IPC: C08L61/10
Filed: 1971-11-24
Abstract: 1362393 Phenolic resin foams DYNAMIT NOBEL AG 24 Nov 1971 [28 Nov 1970] 54685/71 Headings C3C and C3R A process for the preparation of a phenolic resin foam comprises foaming and hardening a liquid resol resin having a solid resin content of 60-85% by weight, the resin having incorporated therein, before foaming, 2-30% by weight, based on the weight of the resin, of a hydrocarbon oil which, at room temperature, is liquid at all pressures within the range of 1-11 atmospheres and which has a flash point (accordding to DIN 51 584) of above 150‹ C. The hydrocarbon oil may consist of paraffinic hydrocarbons, aromatic hydrocarbons, naphthenic hydrocarbons, or mixtures thereof with olefinically unsaturated hydrocarbons. Preferred hydrocarbon oils are mineral oils and extracts. The resin may also contain boric acid, in an amount 5-30% by weight, as a fire-proofing agent. The foaming may be-carried out by using solid compounds, e.g. alkali metal carbonates and bicarbonates which liberate inert gases under the reaction conditions or liquid blowing agents e.g. n-pentane, chlorofluoromethanes or petroleum fractions. The phenolic resin foam produced by such a process has a density of 20- 200 kg./m.<SP>3</SP> and a shrinkage capacity of 0À1- 2À8% and little or no tendency to form cracks when exposed, in the form of panels measuring 250mm. x 130 mm. x 30 mm., for 30 minutes to a temperature of 450‹ C. in a muffle furnace. Conventional hardening agents may be added to the liquid resol. A surfactant, e.g. ethoxylated castor oil, which also acts as a cell regulator may also be present. In the examples the resol resins are prepared by reacting phenol and formaldehyde in aqueous sodium hydroxide. The foams may be made in open box moulds or continuously by foaming the mixture between the belts of a double belt press.
Patent GB-1221412-A (GB)
Title: Torque limiting device
Inventor: DAVIDSON JOHN BRUCE
IPC: F16D43/208
Filed: 1966-12-08
Abstract: 1,221,412. Overload release clutches. COVENTRY GAUGE & TOOL CO. Ltd. 7 March, 1968 [8 Dec., 1966], No. 54958/66. Heading F2C. In a torque-limiting device in which a pair of relatively rotatable rotary members 23, 24, Fig. 3, have yieldable driving engagement by means of radially movable rollers or roller assemblies 30a, 30b, the rollers are radially urged by a single common spring. The roller assemblies may be a roller mounted on a pin by an antifriction bearing, e.g. a needle roller type. Pins 33 engage the plungers 26 to hold the roller assemblies disengaged. In another embodiment a single garter-type spring urges the roller assemblies radially inwardly into engagement into the other member.
Patent GB-1256156-A (GB)
Title: Improvements in or relating to magnetic devices
Inventor: BOBECK ANDREW HENRY
IPC: G11C19/08
Filed: 1969-11-11
Abstract: 1,256,156. Magnetic storage devices. WESTERN ELECTRIC CO. Inc. 11 Nov., 1969 [12 Nov., 1968], No. 55041/69. Heading H3B. In a magnetic storage device in which information is propagated by moving a single wall domain D in a sheet of magnetic orthoferrite material 11, Fig. 2, the magnetic bias field required to maintain the domain size constant is established by providing sheet 11 with permanently magnetized surface layers 21, 23. The sheet and surface layers have a common direction of magnetization normal to the surfaces, and the moving domain is oppositely magnetized. Rare earth orthoferrites such as TbFeO 3  with 1% Bi are suitable materials for sheet 11, and the surface layers may be formed either as thin, strained regions or by deposition of a different material such as magnetoplumbite. In Fig. 1, a region R of positive magnetization is established in sheet 11 by a D.C. conductor 13, the sheet and surface layers being magnetized in the negative direction. By pulsing hairpin conductor 14, a single wall domain may be separated from region R and propagated along the sheet by pulses applied to looped conductors l1-ln. When a domain arrives at loop ln, it is collapsed by an interrogate pulse in loop 16, and the collapse is read out to a utilization circuit 19 by a loop 18, a control circuit 20 providing synchronization for domain separation, propagation and interrogation. Further propagation channels may be provided by the addition of extra sets of conductors.
Patent GB-1370475-A (GB)
Title: Pressure testing machines for tubes
IPC: G01M3/28
Filed: 1971-11-29
Abstract: 1370475 Testing pipes CSEPELI TERVEZO INTEZET 29 Nov 1971 [4 Dec 1970] 55297/71 Heading G1S A pipe pressure testing device comprises a  first closure cap 2 screwed on to the end of the  test pipe 3 and having a cylindrical extension, a stationary head 1 sealingly engaging the cylindrical extension by means of a sealing ring 17, a second closure cap 8 screwed on to the other end of the pipe 3, a support 9 engaging the closure cap 8 and mounted on the end of a fluid ram 10, and a movable head 11 supporting the ram 10. The closure cap 2 includes a pair of opposed spring-biased pressure valves 16 in its flow-path, and has a groove 2a which is engaged by pivoted dogs 5 Fig.1 (not shown) on the stationary head 1 during the pressure test to prevent relative movement between the head 1 and cap 2. The movable head 11 runs on rails 18 and can be locked in any position along the rails. Spindles 12 are also provided to inter-connect the heads 1 and 11 Fig.1 (not shown) the spindles being fixed to head 1 but detachably secured to head 11. A roller bed 6 is provided for supporting the pipe and the pipe may be moved in the device by tilting the roller bed by means of actuator 7. In use, a pipe has its ends closed by the closure caps 2 and 8 and is pre-filled with test liquid. The pipe is placed in the device as shown in Fig. 2, and the dogs 5 engaged with groove 2a. Low-pressure fluid is applied at 14 and valve 4 operated to vent the head 1. High-pressure test liquid is then applied at 14 and pressurizes the pipe through valve 16. At the same time the hydraulic ram 13 is actuated by connection to the pipe 14 through a pressure reducing device such that the pressure in the ram remains less than that in pipe 14 by a predetermined amount. Alternatively the pressure in the ram may be zero.
Patent GB-1125570-A (GB)
Title: Disperse dyes of the monoazo series and the process of their production
Inventor: ALTERMATT RUEDI
IPC: C09B29/08
Filed: 1965-12-31
Abstract: 1,125,570. Water - insoluble monoazo dyes. SANDOZ Ltd. 31 Dec., 1965 [14 Jan., 1964], No. 55483/65. Heading C4P. The invention provides disperse monoazo dyes of general formula in which R 1  is a methyl or ethyl radical which may be substituted by halogen, cyano or hydroxy groups, R 2  is a methyl or methoxy or ethoxy group, R 3  is a methyl, ethyl, propyl or butyl radical, R 4  is an acyloxyalkyl, alkoxycarbonylalkyl or alkoxycarbonyloxyalkyl group which may be substituted by halogen or cyano, alkoxy or acyl groups, R 5  is an alkyl or alkoxy group or alternatively an acylamino, alkoxycarbonylamino, aralkoxycarbonylamino or aryloxycarbonylamino group which may be substituted by halogen or alkoxy or aryloxy groups. The dyes are obtained by coupling a diazotizable amine below with a coupling component below. The dyes are blue in colour and are used on synthetic hydrophobio materials.
Patent GB-1215810-A (GB)
Title: Connector for articulated railway car
Inventor: LIVELSBERGER KENNETH VINCENT
IPC: B61G5/02
Filed: 1967-12-06
Abstract: 1,215,810. Articulated railway cars. AMSTED INDUSTRIES Inc. 6 Dec., 1967, No. 55588/67. Heading B7L. In an articulated railway car 10, Figs. 1 and 2, car sections 12, 14 are connected together by a connector comprising a part 26 secured to the section 14 and having a cavity 30 to telescopingly receive a part 28 secured to the section 12, the parts being connected by a vertical pin 38, and bearing members 64, each having a cylindrical surface 68 and a part-spherical surface 66 are urged by springs 74 into engagement with partspherical surfaces 62 on the part 28 and with the pin 38, whereby universal pivotal movement is provided between the connector parts 26, 28. The outer end of the part 28 engages a stop element 54 in the part 26. The part 28 rests on a bearing member 76 having a partspherical surface 78 engaging a seat 52 on the part 26. The part 26 also has a boss 32 engaging in a recess 34 in a bolster 22 of a central bogie of the car 10. Another embodiment discloses wings on the connector parts for limiting the pivotal movements of the parts.
Patent GB-1241480-A (GB)
Title: Method of preparing supported oxidation catalysts for producing ethylene oxide
IPC: B01J23/50
Filed: 1969-11-14
Abstract: 1,241,480. Ethylene oxide. SOC. ITALIANA RESINE S.p.A. 14 Nov., 1969 [23 Nov., 1968], No. 55995/69. Heading C2C. [Also in Division B1] Ethylene oxide is produced by oxidizing ethylene with oxygen over a supported silver catalyst containing also one or more of platinum, palladium and gold (see Examples 2, 4 and 5). The reaction is carried out at ambient pressure and a temperature between 260‹ and 295‹ C. suitably by the method of Specification 1,191,983 which involves feeding ethylene and oxygen, substantially pure, separately or mixed together, to a reaction chamber in such a way that the ethylene comprises 86% by volume of the reaction gas at entry to the reaction chamber. The process is characterized by the use of the catalyst which contains 7 to 30% by wt. silver with respect to the support and 0À01 to 1À0% by wt. of Pt, Pd or Au with respect to the silver and has been prepared by a process comprising impregnating the carrier with a solution of silver lactate in lactic acid containing in suspension carbon and at least one of the metals Pd, Pt and Au, followed by drying and heat treating.
Patent GB-1268526-A (GB)
Title: Prefabricated panels
Inventor: HARRISON JOHN MARTYN
IPC: E04C2/20
Filed: 1969-11-19
Abstract: 1,268,526. Laminated panels. LUDHAM PLASTICS ENG. Ltd. 29 Oct., 1970 [19 Nov., 1969], No. 56704/69. Heading B5N. A prefabricated panel, e.g. for use in buildings or freight containers, comprising foamed plastics strips arranged in side-by-side relation and bonded one to the other by glass fibre reinforced plastics material which covers each face of each strip is produced by (1) forming a base layer of molten glass fibre reinforced plastics material of substantially uniform thickness, (2) placing a first foamed plastics strip on the base layer and uniting the foam plastics strip to the base layer by applying to the top and opposite sides of the foamed plastics strip, e.g. by spraying or brushing, a substantially uniform coating of molten glass fibre reinforced plastics material, (3) positioning a second foamed plastics strip on the base layer and pressing against the coating of glass fibre reinforced plastics material applied to a side of the first foamed plastics strip and applying to the top and to the exposed side of the second foamed plastics strip a substantially uniform coating of molten glass fibre reinforced plastics material, (4) repeating step (3) until the base layer is covered with coated foamed plastics strips and (5) curing the glass fibre reinforced plastics material to bond the foamed plastics strips one to the other. Cover sheets, e.g. of polyvinyl chloride, may be applied to opposite sides of the panel prior to curing or the base layer may be formed on a first cover sheet and before curing a second cover sheet may be positioned on the coated tops of the foamed plastics strips and pressed against them. The foamed plastics strips may be made from rigid polyurethane foam or from polyvinyl acetate coated expanded polystyrene foam and the plastics material reinforced by glass fibre may be unsaturated polyester resin. The foamed plastics strips may be so positioned relative the base layer of glass fibre reinforced plastics material that the base layer has a margin around the edges thereof by which the panel may be attached, e.g. by riveting, to a frame. Each strip of foamed plastics material extending across the width of the base layer may comprise short lengths of foamed plastics material the facing ends of which are bonded to one another by the coatings of glass fibre reinforced plastics material.
Patent GB-1360476-A (GB)
Title: Composition for promoting the polyerization of photopolymerizable masses
IPC: C08F2/50
Filed: 1971-12-09
Abstract: 1360476 Photosensitizing compositions PROGIL 9 Dec 1971 [28 Dec 1970] 57264/71 Heading C3P A photosensitizing composition comprises a benzoin having the formula in which X is an oxygen or sulphur atom, R 1  and R 2  are independently hydrogen atoms or aliphatic or aromatic hydrocarbon radicals, and R 3  and R 4  are independently benzene nuclei optionally mono-, di- or tri-substituted with alkyl, alkoxy, trihaloalkyl, meta-hydroxy, alkylene dioxy groups or halogen atoms, and, as activator for this benzoin, a carboxylic acid, in the form of a solution in an organic solvent. The composition may further comprise a reducing agent selected from the alcohols, the organic phosphites, the hydroquinones, the alkylmercaptans and the aryl-mercaptans. In the examples compositions comprising methoxybenzoin, tartaric acid, dodecyl mercaptan, acetone, isopropoxybenzoin, trinonylphenyl phosphite, monomethyl hydroquinone ether, methylethyl ketone, di-tert.-butyl paracresol, benzoin, 1-butoxybenzoin and phenylthiobenzoin are added to an unsaturated polyester prepared from maleic anhydride, phthalic anhydride and propylene glycol, dissolved in styrene and containing hydroquinone and the mass is polymerized by irradiation from a lamp.