baber/WOPTO huggingface dataset:
Patent GB-1132610-A (GB)
Title: A color television receiving and reproducing system
IPC: H04N11/22
Filed: 1965-12-21
Abstract: 1,132,610. Colour television; wired distribution systems. GENERAL CORP. 21 Dec., 1965 [30 Dec., 1964], No. 54097/65. Headings H4F and H4R. A signal of the N.T.S.C. type obtained from a receiver or a camera equipment is converted to a line-sequential signal with a colour synchronizing signal in the forms of a " burst " of oscillation inserted at every third line and then distributed over a cable to a remotely located receiver which is constructed to respond to and reproduce signals on a line-sequential basis. The conversion of the N.T.S.C. signal, Fig. 2 (not shown), is effected by demodulating the chrominance subcarrier component with a reference oscillation which is modulated so as to change phase in a sequence at line frequency to the three angles which are necessary to obtain the colour difference signals R-Y, B-Y and G-Y. These signals are then combined with the wide-band luminance signal so as to form a normal line-sequential signal. The phase modulation of the reference oscillation is produced by a three-step wave which is generated under the control of a divide-by-three counter driven by horizontal synchronizing pulses. The counter also controls the production of the colour synchronizing " burst " signal which is inserted in the horizontal blanking intervals of the converted signal once in every three lines. The three-step wave is also used to introduce a cyclic variation in the amplitude of the chrominance subcarrier signal before it is demodulated. A receiver for use in the system, Fig. 14 (not shown), utilizes a single-gun, beam-switching, cathode-ray tube. The colour switching grids are energized by a three-step wave from a circuit which is driven by horizontal synchronizing pulses and established in the correct phase by the colour synchronizing " bursts " so as to cause the production of colours in a line sequence in step with the linesequential colour signal. Provision may be made to record the line-sequential signals magnetically before they are transmitted over the cable. The invention is stated to be of application in community television systems since it reduces the bandwidth of the signal to be transmitted and simplifies the receiving apparatus.
Patent GB-1359408-A (GB)
Title: Invention relating to dartboards
IPC: F41J3/00
Filed: 1972-11-30
Abstract: 1359408 Dartboards E I MORGAN 30 Nov 1972 [23 Nov 1972] 54277/72 Heading A6S A dartboard has the scores marked in decimal pounds and pence.
Patent GB-1240742-A (GB)
Title: Dyed textiles resistant to ozone fading
IPC: D06P1/651
Filed: 1969-11-05
Abstract: 1,240,742. Dyeing polyamides. ALLIED CHEMICAL CORP. 5 Nov., 1969 [7 Nov., 1968], No. 54343/69. Heading D1B. Dyed polyamides e.g. poly #-caproamide and polyhexamethylene adipamide are rendered more resistant to ozone fading by incorporating into the polyamide (a) an ethylene oxy-substituted tertiary amine of the formulae: wherein R is an alkyl or aralkyl radical containing 4 to 25 carbon atoms and x, y and z are integers so that in compounds of the first formula above x+y is not more than 10 and in the second formula x+y+z is not more than 10 and (b) a hindered phenol. The tertiary amine is preferably N, N-di-(2-hydroxymethyl) octadecylamine or N, N, N'-tri-(2- hydroxyethyl)-N'-octadecyl-1, 3-propylene diamine and the hindered phenols are 4, 4'- butyldene bis-(6-butyl-m-cresol), p-nonylphenol, 1, 3, 5-trimethyl-2, 4, 6-tris-(3, 5-dibutyl-4- hydroxybenzyl)-benzene or 6-butyl-m-cresol. The compounds (a) and (b) may be added together or separately during the polyamide polymerisation, coated onto nylon chips before spinning or injected into the nylon melt during spinning. The tertiary amine may also be applied from an aqueous bath e.g. the dyebath and amounts of 0.1% to 5% based on the weight of polyamide of each component may be used.
Patent GB-1409429-A (GB)
Title: Indoor operated tamperproof daily milk delivery requirements  indicator
IPC: G09F11/04
Filed: 1972-11-27
Abstract: 1409429 Indicators B P RICHARDSON 27 Feb 1974 [27 Nov 1972] 54766/72 Heading G5C An indicator for showing milk delivery requirements has a manually rotatable control knob 11 movable against a pointer 10 inside a door and connected by shaft 7 to an indicator disc 2 bearing numerals viewed through a window 3 in a housing containing the disc outside the door.
Patent GB-1273407-A (GB)
Title: Improvements in and relating to engine gaskets and engine gasket parts
Inventor: HARBY EIGIL BRANDT
IPC: F16J15/08
Filed: 1969-11-10
Abstract: 1,273,407. Joint-making packing. E. B. HARBY. 10 Nov., 1969 [13 Nov., 1968], No. 54820/69. Heading F2B. A cylinder head gasket or the part of a gasket which surrounds the combustion space consists of sintered metal. The sinter metal may be iron, steel, brass or copper powder and the pores sealed throughout or locally by an impervious filler during manufacture. The openings in the gasket may be plated with metal and the areas surrounding the openings may be corrugated to increase resilience, the corrugations preferably being in the form of waves extending parallel with the outline of the openings. A gasket may be manufactured of layers of metal and sealing material and with a separate ring inserted around a combustion space opening, the ring being made of sintered metal, having a bulk modulus at least the same as that of the rest of the gasket.
Patent GB-1367924-A (GB)
Title: Method of moulding thermo-setting resins
IPC: B29C70/02
Filed: 1971-11-29
Abstract: 1367924 Moulded boxes MITSUBISHI PETROCHEMICAL CO Ltd 29 Nov 1971 [27 Nov 1970 24 March 1971] 55408/71 Heading B8P [Also in Division B5] A method of moulding a planar or box-shaped article comprises impregnating a micro-porous sheet and a filler comprising fine hollow particles with a thermosetting resin and setting the resin, (See Division B5A). One or both surfaces of the sheet 5 may be uneven e.g. corrugated. More than one sheet 5 may be employed. The discs and sheets may be formed from a glass fibre cloth, asbestos, or filter paper. A resin, e.g. epoxy or unsaturated polyester having a lower setting shrinkage than the impregnating resin may be applied thereafter to a mould having an uneven sheet therein so that a smooth surface may be formed on the article. The impregnating resin may be an unsaturated polyester, an epoxy, a phenolic, a polyamide or a mixture thereof. The filler may also include glass or asbestos fibre, silica, alumina, calcium carbonate gypsum, talc, clay, zeolite. The hollow particles may comprise particles of phenolic resin volcanic ash or glass, the latter having a diameter of 1-1,000 Á.
Patent GB-1341778-A (GB)
Title: Keyboard devices
IPC: G06C7/02
Filed: 1971-11-30
Abstract: 1341778 Keyboards COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS-CITALCATEL 30 Nov 1971 [30 Nov 1970] 55606/71 Heading G4H Apparatus for providing one of a number of N digit codes comprises a keyboard having M keys 1, Fig. 1, a transformer 12 for each key having primary and secondary windings 8, 7 which can be coupled and decoupled by a conducting disc 9 operated by the key, and an (N + 1) x M coding matrix of transformers 40, Fig. 3, the (N + 1) primary windings 41 of each of the M columns of the matrix being connected in series to the winding 7 of a respective transformer 12 and the particular code in use being determined by an appropriate array of conducting discs 45 on an electrically insulative film 44 located adjacent selected transformers of the matrix. The discs 9 are biased into contact with the transformers 12, thereby decoupling their windings; when a key is depressed the bias is overcome and the respective disc is moved out of contact with its transformer, the windings of which can then be coupled. The (N + 1) rows of the matrix provide an N-bit code together with a parity bit, the absence or presence of a disc 45 at a respective transformer 40 ensuring that it is coupled (providing a " 1 ") or decoupled (" 0 ") respectively. The code is changed by replacing the film 44 by one having a different array of discs. The circuits may all be deposited on a common insulative film, or on separate ones as desired. A dummy keyboard 27, Fig. 2 (not shown), having all its transformers 12 permanently decoupled may be incorporated for noise suppression.
Patent GB-1207816-A (GB)
Title: Preparation of hydrazine hydrate from aqueous hydrazine sulfate
IPC: C01B21/16
Filed: 1967-12-08
Abstract: 1,207,816. Hydrazine hydrate. FARBENFABRIKEN BAYER A.G. 8 Dec., 1967 [17 Dec., 1966], No. 55847/67. Heading C1A. Hydrazine hydrate is produced by reacting dihydrazine monosulphate in an evaporator with an aqueous alkali metal hydroxide solution (at least 40% by weight) the hydrazine hydrate liberated being distilled off from the alkali metal sulphate which is discharged from the evaporator. The alkali metal is preferably used in a 5% excess over the stoichiometric ratio, the evaporator may be a falling film evaporator or a flash evaporator, the starting materials preferably being fed separately to it. In the case of flash evaporation slight overheating only is used and the liquid is recycled after hydrocycloning to remove precipitated sodium sulphate, the operating pressure is preferably 100 Torr, the temperature 50‹ to 60‹ C. If atmospheric pressure is used the temperature may be up to 130‹ C.
Patent GB-1283960-A (GB)
Title: Improvements in and relating to image pickup tubes
IPC: H01L29/00
Filed: 1969-11-14
Abstract: 1283960 Anodizing aluminium; electrodepositing silver PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 14 Nov 1969 [19 Nov 1968] 55849/69 Heading C7B [Also in Division H1] A target for a camera tube comprises a semiconductor substrate 14 in which is provided a mosaic of rectifying junction regions 13, and an insulating layer 15 covered by a conductive layer 17, cavities 21 extending through the layers to the regions and extending laterally to below the insulating layer. If the layer 17 is of aluminium it may be provided with an insulating surface by electrolytic anodic oxidation treatment, the electrolyte comprising 5% ammonium pentaborate in glycol, and the electrolytic current being 0.5 mA per sq. cm of the layer 17. In a modification, Fig. 6 (not shown), the cavities are filled with metal such as silver deposited electrolytically, and the metal layer 12 may be removed by etching prior to the deposition of the filling. The electrolyte for silver deposition may comprise 125g KCN, 22À5g K 2  CO 3 , 4.5g KOH and 25g AgCN per litre of water, and the current density may be 5 mA per sq. cm. The rectifying junctions are reversebiased during this process and if this resistance is too great it may be reduced by exposing the junctions through the substrate.
Patent GB-1197763-A (GB)
Title: Transfer Press.
IPC: B29C43/00
Filed: 1967-12-08
Abstract: 1,197,763. Injection moulding apparatus. SCHIESSER A.G. RUBBER & RAILROAD RESEARCH. 8 Dec., 1967 [17 Dec., 1966], No. 56002/67. Heading B5A. A transfer press for the moulding and vulcanization of rubber mouldings comprises a stationary lower hot plate 5, a vertically movable upper hot plate 14, and a two-part mould 31, 32 between the two plates. A lug 31b on the mould is centred in a ring inserted in the top of the lower mould plate, and two fixed vertical hydraulic cylinders 10a, 106 have depending piston rods lla, 11b secured to the upper hot plate. A fixed hydraulic cylinder 7 has a depending piston rod 8 secured to a press plunger 9 which passes through the upper hot plate and enters a press chamber 32b. The latter is formed by a cylindrical recess in the top of the upper mould part, and by a bore of a guide ring 32d. One or more ducts 32a extend from the press chamber to a moulding space 31a. The hot plates have parallel bores to receive electric heating rods; alternatively the plates may be heated by superheated steam. The recess in which the lug 31b is received widens and extends to the front edge of the lower hot plate. After supplying an unvulcanized rubber mixture to the chamber 32b the mould is placed between the hot plates. The mould may be used to join strips of rubber placed in the lower mould half before the top half is applied and centred by bolts 34; a V-shaped moulding may be produced. A guard 25 is located around the hot plates and is pivoted upwardly to permit mould supply and removal. Movement of the guard operates a switching mechanism for controlling fluid supply to the hydraulic cylinders.
Patent GB-1327974-A (GB)
Title: Method of electrolytically producing zirconium and zirconium  alloys
IPC: C25C7/02
Filed: 1971-12-06
Abstract: 1327974 Zirconium refining EUROPEAN ATOMIC ENERGY COMMUNITY 6 Dec 1971 [7 Dec 1970] 56555/71 Heading C7B In a method of producing zirconium or its alloys using an anode of zirconium or zirconium carbide a cathode is continuously conveyed through an electrolytic cell comprising a mixture of molten salts containing a zirconium compound. The cathode may comprise a moving strip of zirconium or other metal or a series of plates carried through the cell on a chain or strip. The cathode is continuously melted on leaving the electrolyte by a plasma torch or by high frequency melting. The molten metal drops on to a rotating disc and balls of metal are thrown into a quenching bath of LiI-KI. The cell, which is made of steel, may comprise two anode compartments and a central cathode compartment separated by diaphragms of porous metal or graphite. The electrolyte may be a mixture of zirconium iodide and alkali metal iodides such as lithium iodide and potassium iodide. The cell atmosphere is argon. The cell is heated by A.C. current flowing between auxilliary electrodes.
Patent GB-1209459-A (GB)
Title: Acid polishing or like treatments of glass articles
Inventor: GREALEY MICHAEL
IPC: C03C15/02
Filed: 1967-12-15
Abstract: 1,209,459. Acid polishing of glassware. STEVENS & WILLIAMS Ltd. 15 Dec., 1967, No. 57230/67. Heading C1M. In the acid polishing of glassware, the articles are placed in open-access pockets 10 of a cage 2 rotating about a horizontal axis 7 positioned over a tank 1 containing the acid bath so that the cage 2 is partially immersed in the bath and the articles G are retained in the pcokets during immersion by a shield 12 in the bath extending round the lower part of the cage 2. Articles inserted, by hand, at point B are discharged at point A by gravity and circular or part circular articles are given by the cage and shield 12 an anticlockwise rotation which assists the discharge. Preferably two or three stages of water washing and drying follow the acid polishing, each tank 1 being slightly below the previous stage tank. To control the period that the articles are in the cage; discharge at A is stopped by a gate extension 21 of the shield 12 mounted on the axis 7 by arms 22 which is moved out of position to allow discharge and held by a latch 33 engaging a pin 23. Each cage 2 may be divided into racks 3, 4, 5 and 6 to take different size articles and each rack may have an individual gate 21. In the acid bath, an immersion heater 35 and spray pipes 37 are provided together with a fume extractor cowl 30. The shield 12 and pockets 10 are preferably of plastics material and are perforated to ensure that the articles are fully treated.
Patent GB-1324268-A (GB)
Title: Method of operating a cupola
IPC: F27B1/00
Filed: 1970-12-04
Abstract: 1324268 Cupola operation VEREIN ZUR FORDERUNG DER GIESSEREI-INDUSTRIE 4 Dec 1970 [4 Dec 1969 6 Aug 1970(2)] 57626/70 Heading C7D [Also in Division F4] A method of operating a cupola comprises the steps of charging it with solid fuel consisting of coke, having a piece size of 60 k 80 mm, or coke briquettes or foundry coke, subjecting the fuel to a primary air blast in a primary combustion zone, whereby CO 2  gas is produced which is subsequently reduced to CO by contact with the glowing coke and burning this CO in a secondary air blast in a secondary combustion zone spaced above the primary combustion zone by approximately the clear width of the furnace and maintaining the volume of the air blast so that all the CO is burnt. Additional fuel such as oil or gas may be supplied. The volume of the secondary air blast can be adjusted by Increasing it until the CO content of the waste gases has reached a constant minimum value without free oxygen being present. This may be performed automatically. Alternatively the volume of the secondary air blast may be automatically regulated so as to be a constant proportion of the primary air blast. The secondary blast is of cold air but the primary blast may be of hot or cold air.
Patent GB-1419857-A (GB)
Title: Production of pure nitrogen
IPC: F25J3/04
Filed: 1973-12-13
Abstract: 1419857 Increasing nitrogen yield from air LINDE AG 13 Dec 1973 [14 Dec 1972] 57754/73 Heading F4P A method of increasing the pure nitrogen yield from a compressed air stream 3, comprises combining an oxygen-rich fraction 5 from the singlestage rectification column 1 with the stream 3 at a jet compressor 2 before passing the mixture to the column 1 via line 4. The O 2 -rich fraction is taken from column 1 via line 6, expanded at throttle valve 7, and evaporated in overhead condenser 8. Pure nitrogen is supplied from column 1 as an overhead through line 10. The jet compressor uses the compressed air 3 to compress the O 2 -rich fraction 5, which compressed air is consequently expanded, the resultant mixture having the pressure of the column 1.
Patent GB-1182319-A (GB)
Title: Etching of Gold
Inventor: SCHAEFER DONALD LOUIS
IPC: C23F4/00
Filed: 1967-12-20
Abstract: 1,182,319. Etching. GENERAL ELECTRIC CO. 20 Dec., 1967 [27 Dec., 1966], No. 57953/67. Heading B6J. A gold surface is etched by providing a common interface between the surface and a liquid solution of a material which is photodecomposable to form chemically reactive species which combine with gold to form gold products which are soluble in the liquid solution, and exposing the interface to radiation to form the soluble gold products in zones of the interface which are irradiated. Examples describe the etching of a gold film deposited on a molybdenum wire using as etchants (a) iodoform in solution in a mixture of benzene and acetone and (b) an aqueous potassium ferrocyanide solution. Other etchants specified are sodium ferrocyanide and further photodecomposable halogenated organic compounds. The exposing radiation was a xenon lamp. Exposure to the radiation may be through a photographic transparency.
Patent GB-1314920-A (GB)
Title: Circuit arrangement including an electromagnetic change-over device having a coil and an armature
IPC: H01F7/18
Filed: 1971-12-15
Abstract: 1314920 Semi-conductor relay circuits SIE. MENS AG 15 Dec 1971 [18 Dec 1970] 58353/71 Heading H3T A holding current I H  is supplied by a source G to the coil kl of a relay or electromagnetic valve not shown, via a choke k2, a capacitor k3 being discharged by a semi-conductor switch n3 into the coil to add to I H  to initially energize the relay, and a second capacitor k4 being discharged by n4 into the coil k1 to oppose I H  and de-energize the relay. The capacitors are externally charged, and the current from k3 during energization is arranged preferably to be a multiple of I H . The opposing current I A  from n4 is arranged to flow for between five and ten times the de-energization time required for the relay, and is large enough to overcome the k3 current I E  in case both should overlap. The choke k2 has an inductance greater than the coil k1 and the switches are S.C.R.'s.
Patent GB-1358970-A (GB)
Title: Ureido- and thioureido-phenyl carbamates and phenylthiocarbamates
IPC: C07C239/00
Filed: 1972-12-19
Abstract: 1358970 Ureido- and thioureido-phenyl carbamates and thiocarbamates SCM CORP 19 Dec 1972 [22 Dec 1971] 58580/72 Heading C2C The invention comprises meta-3-alkylated ureidophenyl and thioureidophenyl carbamates and thiocarbamates wherein at least one valence of the carbamate nitrogen is satisfied with a haloalkyl group having from 1 to 6 carbon atoms. The compounds of the invention preferably have the general formula wherein X<SP>1</SP> and X<SP>2</SP> are oxygen or sulphur; R 1  and R 3  are hydrogen or alkyl groups having 1 to 6 carbon atoms; R<SP>2</SP> is an alkyl group having 1 to 6 carbon atoms; R<SP>4</SP> is hydrogen, an alkyl group having 1 to 6 carbon atoms or a haloalkyl group having 1 to 6 carbon atoms; and R<SP>5</SP> is a haloalkyl group having 1 to 6 carbon atoms. They may be prepared b reacting a m-ureidophenol or m-thioureidophenol with an alkyl-isocyanate or thioisocyanate. The compounds of the invention may be used as herbicides.
Patent GB-1355548-A (GB)
Title: Process for the preparation of 4,5-bis-trifluoromethyllimino derivatives of sulphur-free heterocyclic five-membered rings with two ring hetero atoms
Inventor: SCHOLL HANS-JOACHIM
IPC: C07D498/04
Filed: 1971-12-17
Abstract: 1355548 Imidazolidines and oxazolidines BAYER AG 17 Dec 1971 [18 Dec 1970 18 June 1971] 58692/71 Heading C2C The invention comprises compounds of formula  wherein Z is oxygen, the group R-N= or the group =CR<SP>1</SP>R<SP>11</SP>, X and Y are oxygen or a group -N(R<SP>111</SP>)- or -N(R<SP>1111</SP>)-, provided that X and Y are not both oxygen, and each of R, R<SP>1</SP>, R<SP>11</SP>, R<SP>111</SP> and R<SP>1111</SP> is hydrogen, C 1-8 -alkyl, alkenyl or alkynyl, optionally substituted by halogen, cyano, C 1-4  alkoxy or alkylmercapto, cycloalkyl, optionally substituted by C 1-4  alkyl, aralkyl with up to 2 carbon atoms in the alkyl moiety or aryl with up to 14 carbon atoms in the ring system, the aryl radicals or moieties being optionally substituted by halogen, cyano, nitro, C 1-4  alkyl, C 1-4  haloalkyl, C 1-4  alkoxy or C 1-4  alkylmercapto, or 5- to 7-ring-membered heterocycles, or one of R, R<SP>1</SP> and R<SP>11</SP>, together with R<SP>111</SP> or R<SP>1111</SP>, completes a fused 5- to 7-membered ring, the said fused ring being optionally fused to a benzene or hydrogenated benzene ring, or peri-fused to a naphthalene ring, and being optionally substituted by halogen, cyano, nitro or C 1-4  alkyl; these compounds are prepared by reaction of a compound Z = C(XH)YH with the compound CF 3 N = CFCF = NCF 3  in the presence of a hydrogen fluoride acceptor at -50 to +120‹ C. The products are fungicides, insecticides and acaricides.
Patent GB-1329375-A (GB)
Title: Grinding mill bolted construction
IPC: B02C17/22
Filed: 1971-12-20
Abstract: 1329375 Bolts &c DOMINION ENG WORKS Ltd 20 Dec 1971 [11 Jan 1971] 59067/71 Heading F2H [Also in Division B2] In a grinding mill hollow drum structure an annular plate 20 is secured to a flange 22 by a hollow bolt 36 and nut 40 and a cast liner plate 24 is held against the plate 20 by a further bolt 46 and nut 50, the bolt 46 passing through the bore 48 in bolt 36.
Patent GB-1333800-A (GB)
Title: Machine for scattering granular or pulverulent material
IPC: E01C19/20
Filed: 1971-12-23
Abstract: 1333800 A spreader for pulverulent material AMAZONEN-WERKE H DREYER 23 Dec 1971 [31 Dec 1970] 60050/71 Heading AID [Also in Division F2] A spreading screw 9 for spreading sand or the like material from a hopper 2 is intermittently driven off at least one land wheel 3 via chain 8 and ratchet clutch 7 whose arm 6 is oscillated by cams 5, 5' on the axle of the ground wheel and the transmission ratio of the system is altered by a screw 10 which varies the amplitude of the oscillation of the arm 6. A spring 11 biases the arm 6 to engage the screw 10 and two agitators 13, 13' are driven off the screw 9 via chains 14, 15. A bottom plate 12 is resiliently connected to the hopper and yields to any foreign matter.