baber/WOPTO huggingface dataset:
Patent GB-1359365-A (GB)
Title: Colour television receiver
IPC: H04N9/71
Filed: 1971-07-23
Abstract: 1359365 Colour television PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 23 July 1971 [28 July 1970] 34639/71 Heading H4F A television receiver using a beam indexing tube 31 is arranged so that the contrast for a monochrome display is increased relative to the contrast for a colour display. The luminance signal M is derived from the collector of a current-source transistor 97, whose emitter is connected to the collectors of transistors 21 and 29 whose bases receive inputs of Y and M - Y respectively. For colour reproduction switch 105 is closed and the output from the collector of transistor 97 is produced across resistor 101. When a monochrome signal is received a signal from the colour killing output 19 of separator circuit 13 is produced due to the lack of colour bursts and this signal opens colour killing switch 70 and switch 105 so that the output from the collector of transistor 97 is produced across the series combination of resistors 101 and 103, thus resulting in increased contrast in the displayed image. The colour killing signal also operates a switch 82 to connect the tube cathode 78 to a potentiometer 91 to reduce the background luminance and further increase the contrast. For colour, display switch 81 connects the cathode 78 to a measuring circuit 75 which measures the background beam current and passes a signal to a combining circuit 73 to maintain the background beam current constant. Blanking is achieved by a signal applied at 125 which cuts off transistors 115 and 97.
Patent GB-1524836-A (GB)
Title: Configurations of 3((2 - mercapto - 1 - methylpropyl)thio)-2-butanol and flavouring of foodstuffs with same
IPC: A23L27/21
Filed: 1975-08-21
Abstract: 1524836 Flavouring compositions INTERNATIONAL FLAVORS & FRAGRANCES INC 21 Aug 1975 [23 Aug 1974] 34709/75 Heading A2B [Also in Division C2] 3-(2-mercapto-1-methylpropyl) thio-2-butanols having one or more of the following configurations are used in flavour-altering compositions.
Patent GB-484823-A (GB)
Title: Improvements in steam separators
IPC: F22B37/30
Filed: 1936-12-17
Abstract: 484,823. Steam separators. CAIRD & RAYNER, Ltd., and REDDICK, R. F. Dec. 17,1936, No. 34732. [Class 123 (iii)] Steam separators comprising a series of baffle members disposed in the steam space of boilers or evaporators are formed of a number of concentrically arranged cylindrical baffles 4, 5, 6, disposed one within the other and supported on a base 7 having a series of separate troughs or gutters 11, 10 each communicating through openings 12 with the base of a baffle and provided with a drainage pipe. Water draining from the outer baffle 6 collects on a platform 15 supporting the separator and is discharged through a pipe 16. In a modification, the central steam inlet 9 is replaced by a closed trough, the separator being suspended from the top of the evaporator and the steam passing inwardly through the baffle members to an outlet above the central space.
Patent GB-1553296-A (GB)
Title: Process and an apparatus for the production of fibrepulp from ligno-cellulose materials
IPC: D21B1/14
Filed: 1976-08-20
Abstract: The disc mill comprises a revolving (30) and a stationary (12) grinding disc. The revolving grinding disc (30) is arranged on a shaft. In both grinding discs (12, 30), radial grooves are formed into which webs (67) of a hard material are inserted. Along these radial webs (67), rows of pockets (41-46 and 61-66) separated from one another by transverse fins (51, 52) are located. The width of the grinding gap present between the two grinding discs (30, 12) is determined by the webs (67) together with the transverse fins (51, 52). The webs of the revolving grinding disc (30) are of such a width that, during the revolving motion of the grinding disc, they momentarily cover the pockets (61-66) of the stationary disc (12). In this disc mill, the fibres of the starting material are separated from one another without excessive shortening. <IMAGE>
Patent GB-787398-A (GB)
Title: Capacitor grading in lightning arresters
IPC: H01T4/20
Filed: 1955-12-06
Abstract: 787,398. Lightning arresters. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Dec. 6, 1955 [Dec. 7, 1954], No. 34913/55. Class 38 (4). In a lightning arrester comprising valve elements in series with a number of spark gaps, such as 50-52, 56-58 formed between metal electrodes 43-49 positioned relatively to one another by spacers such as 53-55, 59-61, some of the spacers are of high-resistance material and some are of a material possessing a high dielectric constant (preferably of the order of 1000), the arrangement being such that under normal line voltage conditions the high resistance spacers are effective to maintain a uniform voltage distribution over the gaps and thus prevent breakdown, whilst under surge conditions the high dielectric constant spacers form effective capacitative shunts on some of the gaps, causing excessive voltage to appear across the other gaps, which consequently break down. Breakdown of the shunted gaps follows and the surge discharges. The high dielectric constant spacers may comprise barium titanate, alone or together with magnesium zirconate, or they may be of titanium dioxide. The high-resistance spacers may comprise carbon, or may be of material having a non- linear voltage characteristic. In the form shown, the electrodes surround a central ceramic rod 31 passing through a hole in each electrode formed with inwardly directed ionizing ears which bear on the rod. The spacers are located in dished recesses formed in the electrodes and the spark gaps are formed between the projecting outer surfaces of the recesses, these being, say, six circumferentially arranged recesses in each electrode and adjacent recesses in each electrode being oppositely directed. The spacers 59-61 are of high dielectric constant material and the other spacers are of highresistance material. Thus the gap 56 is shunted solely by resistance spacers, but gap 50 is shunted both by resistance spacers and a spacer 59 of high dielectric constant material.
Patent GB-806224-A (GB)
Title: Improvements in or relating to the production of ceramic capacitors
Inventor: COOK RONALD JOHN
IPC: C04B41/88
Filed: 1955-12-06
Abstract: 806,224. Capacitors. LONDON ELECTRICAL MANUFACTURING CO. Ltd. Feb. 28, 1957 [Dec. 6, 1955], No. 34933/55. Class 37. A capacitor, of the type having a ceramic body partly coated with a conductive film, is made by coating a ceramic biscuit with a metallic composition before firing at the vitrification temperature. The ceramic mix is composed of a ceramic base, sich as titanium dioxide or a titanate, and glass, the components being mixed with a binder such as a solution of ethyl cellulose in acetone, then milled, dried, crumbled and pressed into biscuits. A suitable mixture would be five parts of titanium dioxide to 4.6 parts of glass, the glass to have a softening point not exceeding 500‹ C. The biscuits are then coated with silver or with a silver compound and fired in a kiln for approximately two hours at about 600‹ C. If a glass having a softening point not exceeding 590 ‹ C. is used the firing is for approximately 2¢ hours at 650‹ C. The silver compound may be combined with a fluxing medium such as a lead borate and suspended in an adhesive medium such as a nitrocellulose solution or a copal varnish. The method avoids a vitrification temperature higher than 900‹ C. so that silver can be used for the electrodes and at the same time reduces the number of rejects due to biscuit distortion.
Patent GB-301906-A (GB)
Title: Improvements in and relating to engines provided with a piston and a connecting rod
IPC: F16J1/16
Filed: 1928-11-27
Abstract: 301,906. Naamlooze Vennootschap Kromhout Motoren Fabriek D. Goedkoop, and Iongh, J. H. de. Dec. 8, 1927, [Convention date]. Connecting-rods.-In a piston and connecting-rod attachment of the type in which a steel block 5 carried by a frame 4 rolls on the gudgeon-pin 2, an adjustable abutment member 6 being also provided, the frame is formed with spherical or cylindrical surfaces 8 engaging cylindrical or flat surfaces, respectively, in the piston, in order to prevent slip between the block 5 and the gudgeon-pin. The centre of the surfaces 8 may be at the point of contact a of the block and the gudgeon pin in the middle position of the connecting-rod, or at such a distance above the point a that the centre again lies in the axis of the piston in the extreme positions of the connecting-rod.
Patent GB-393996-A (GB)
Title: Improvements in or relating to the surface treatment of aluminium or aluminium alloys
IPC: C23C22/83
Filed: 1931-12-17
Abstract: To protect aluminium or aluminium alloys from corrosion an adsorptive oxide coating is formed on the surface by chemical or electrochemical reaction and a water-soluble corrosion-inhibiting substance is then adsorbed in the coating, for example by treating the oxide-coated metal with a solution of chromic acid, a chromate, a dichromate, or a soluble silicate.  The oxide coating is preferably prepared either anodically in a sulphuric acid electrolyte or by chemical reaction in a hot solution of sodium carbonate and an alkali dichromate.  The use of phosphoric acid and its salts is also referred to.  The oxide-coated metal, after being washed, may be immersed in a solution of the corrosion-inhibiting substance or may be made the anode in an electrolytic cell with the solution as electrolyte, and the impregnated coating is then dried.  The coating of aluminium-silicon alloy spandrels is described.  The coated surface may be used as a base for paint, e.g. aluminium paint, or lacquer.  A corrosion-inhibiting substance is defined as a substance which prevents corrosion, when adsorbed in the oxide coating, by chemical action with the underlying metal.
Patent GB-1433278-A (GB)
Title: Acylated ureas process for their preparation and their use as herbicides
IPC: A01N47/36
Filed: 1974-08-09
Abstract: 1433278 Acylated thiodiazole ureas BAYER AG 9 Aug 1974 [10 Aug 1973] 35182/74 Heading C2C  Novel acylated thiadiazole ureas of the Formula I wherein R<SP>1</SP> is an alkyl, haloalkyl or optionally substituted aryl radical, R<SP>2</SP> and R<SP>3</SP> are alkyl or alkenyl radicals and Az is a 1,3,4-thiadiazol-2- yl radical optionally substituted in the 5-position, are obtained by reacting 1,3,4-thiadiazole ureas of the Formula II Az-NH-CO-NR<SP>2</SP>R<SP>3</SP> with acid anhydrides of the Formula III (R<SP>1</SP>CO) 2 O. Herbicidal compositions comprise thiadiazole ureas of the Formula I above together with diluents or carriers. 1,1 - Dimethyl - 3 - (5 - trifluoromethyl - 1,3,4- thiadiazolyl-2-yl) urea is obtained by reacting 5 - amino - 2 - trifluoromethyl - 1,3,4 - thiadiazole with chloroformic acid phenyl ester and reacting the N-(5-trifluoromethyl-1,3,4-thiadiazol- 2-yl)-phenyl carbamate so produced with dimethylamine. Other thiadiazole ureas of the Formula II above may be produced analogously.
Patent GB-1293325-A (GB)
Title: Improvements relating to paper clips
Inventor: LORBER KURT
IPC: B44F11/02
Filed: 1971-07-28
Abstract: 1293325 Clips K LORBER 28 July 1971 [29 July 1970] 35350/71 Heading E2B A moulded plastics paper clip is of the shape shown, the. resilience being provided by torsion of arms 12, 13 and of arms 19, 20 which, as shown, are of square section but which may be round. Limbs 12, 13 are also twistable, and arms 22, 23 bend slightly.
Patent GB-747978-A (GB)
Title: Improvements in or relating to methods of winding or unwinding extended material andapparatus therefor
IPC: D02H3/00
Filed: 1953-12-23
Abstract: 747,978. Warping machines. GEBRUDER SUCKER GES. Dec. 23, 1953 [Dec. 29, 1952], No. 35811/53. Class 142 (1). [Also in Group XVI] A warp passing round a feed roller 7 and being wound on or off a beam 16 is kept at constant tension by maintaining its linear speed on the beam at a predetermined ratio to the peripheral speed of the feed roll. A motor 1 drives the feed roll 7 through an infinitelyvariable gear 2 having a manual control 47 by which the feeding speed can be adjusted. The beam 16 is driven from the output of the gear 2 through a similar gear 10. The linear speed of the beam 16 is picked up by a feeler roll 17 and transmitted by chain drives 25, 28 to one member 30 of a differential gear where it is compared with a reference speed applied to the member 31; a discrepancy between the speeds causes rotation of the cage 32 which operates the control 40 of the gear 10 to correct the speed of the beam 16. The reference speed is derived from the feed roll 7 through a change-speed gear 36-38 set to give the required ratio of beaming speed to feeding speed. A long feed roll 7 may supply two or more beams 16, each beam being independently driven and controlled by its own gear 10, feeler 17, gearing 36-38, and differential 30-32.
Patent GB-445831-A (GB)
Title: Improvements in cooling devices for gas or vapour discharge tubes of glass, especially mercury-vapour rectifiers of glass, in which the discharge tube is disposed in a receiver containing a liquid
IPC: H01J13/32
Filed: 1935-12-27
Abstract: 445,831. Discharge devices. JENAER GLASWERK SCHOTT & GEN., Otto-Schott- Strasse, Jena, Germany. Dec. 27, 1935, No. 35813. Convention date, Dec. 31, 1934. [Class 39 (i)] A gas or vapour discharge device, e.g. a mercury rectifier, provided with a glass container, is arranged in a cooling medium, contained in a receiver a, in such manner that the condensing chamber b projects above the level of the liquid and is surrounded by a hood c, the open and lower end of which is immersed in the liquid, and circulation of the liquid through the hood is ensured by reducing the air pressure in the hood below that over the level of the liquid which is located outside the hood. The liquid may be circulated in a closed circuit, which includes a recooling device, by means of a pump. A continuous supply of fresh cooling means may be supplied to a jet pump g, which ensures the circulation of the cooling medium through the hood. The cooling means may be maintained in the hood when the pump is stopped by closing valves in the connecting pipes and by locating the pressure aperture of the pump g below the level of the liquid in the receiver. The anode arms e are maintained at a higher temperature by guiding the cooling means to the bottom of the receiver by means of a pipe h, and by arranging the outflow pipe d below the arms. A number of discharge tubes may be arranged in one or in separate receivers, and all the hoods are connected to one pump. The anode connecting leads are surrounded by glass sleeves f and the supply wires of the auxiliary electrodes are insulated from the water, which may be at cathode potential. The supply of cooling medium may be controlled in dependence upon the temperature thereof, or upon the load, and the device may be automatically disconnected from the supply when the cooling is too intense or is insufficient. When the temperature of the cooling medium drops below a predetermined value it may be heated automatically. In another form, cooling means may be supplied to the top of the hood after the air has been exhausted.
Patent GB-1049010-A (GB)
Title: Improvements in and relating to decorticating machines
Inventor: FARROW LESLIE WILLIAM
IPC: D01B1/22
Filed: 1965-08-20
Abstract: In a machine for decorticating leaves a beater drum 4 (Fig. not shown) having blades 33 which co-operate with a curved shoe 20 is contained in a first housing formed by side walls 1 and a pivotable cover 31 while the rollers 7, 13, 10 for feeding leaves to the drum and rollers 9 for feeding fibres away from the drum are mounted in a second housing formed by side walls 6 and a cover 6b which housing is pivotable about a shaft 29 to permit access to the drum 4, the shoe 20 and the adjacent rollers.  Normally the second housing is retained by bolts 6a.  The upper feed-in rollers 13 are mounted in a further housing 11 pivotable about the shaft of the back roller 10 and adjustably biased towards their associated bottom rollers by a spring 17.  Adjustable leaf guides 18, 19 are provided adjacent the feed-in rollers which are arranged to have successively greater peripheral speeds.  Beneath the feed-in rollers a drip tray 27 and reservoir 28 are provided. Fibres are blown by the action of blades 33 from the drum 4 via a guide 22 to the withdrawal rollers 9 one of each pair of which may be resiliently biased towards the other.  A belt 25 passes about the lower rollers.  Beneath rollers 9 a further shoe 24 is provided to engage the trailing edge of a leaf which is carried past guide 22.  The shoes are reversible and are adjustable relative to the beater drum.
Patent GB-503645-A (GB)
Title: A process for removing acid components from hydrocarbons or derivatives thereof
IPC: C10G19/04
Filed: 1937-12-30
Abstract: 503,645. Purifying hydrocarbons or derivatives thereof. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. Dec. 30, 1937, No. 36146. Convention date, Feb. 8, 1937. [A Specification was laid open to inspection under Sect. 91 of the Acts, July 4, 1938.] [Class 91] [Also in Group IV] Hydrocarbons or derivatives thereof are freed from weakly acid-reacting organic substances by treating with an aqueous alkaline solution in the presence of an alkali salt of phenyl acetic acid, or of a derivative thereof containing a neutral or basic polar group. Polar groups specified are, hydroxyl, amino, sulphone, or nitrate, or halide. Hydrocarbons and derivatives specified are, petroleum or distillates therefrom such as gasoline, gas oil, benzene, toluene, xylene; chlorinated hydrocarbons such as chlorethane, ethylene dichloride, chlorbenzene, trichlorethylene, carbon tetra chloride ; brombenzene ; nitro-compounds such as nitroethane, nitrobenzene, amylamine, aniline, pyridine or petroleum bases. 'These contain small amounts of acids, phenols, thiophenols or mercaptans which are removed by the process. The preferred alkali solution consists of 2 to 6 N caustic soda or potash, saturated with sodium phenyl acetate. Ammonium hydroxide, alkaline earth hydroxides, alkali carbonates, or quaternary ammonium compounds may be used as the alkali. Extraction is effected at atmospheric temperatures for a short period in mixers and settlers, or in an extraction column. The spent alkali layer is regenerated by steaming, and if mercaptans are present by oxidation. The hydrocarbons may be pre-treated by washing with water, alkali, or tri-potassium phosphate solution. After extraction, the hydrocarbons may be treated with sodium plumbite or hypochlorite, or with air and an oxidation catalyst such as a heavy metal suphide.
Patent GB-1472623-A (GB)
Title: Curvature measurement device
IPC: A61B5/103
Filed: 1974-08-16
Abstract: 1472623 Curvature measurement device WILMARK ELECTRONIC CO Inc 16 Aug 1974 [29 Aug 1973] 36248/74 Heading G1N A device for measuring flexing or twisting of an object, comprises an elongate flexible member 48, at least one sensing wire 46 fixed to the member at one end and extending along it such that as the member is flexed the other end of the wire changes its position relative to the member, and means for producing an electrical signal proportional to the change in position. In the embodiment shown in Fig. 5 two conducting sensing wires 72, 74 are located in grooves 56, 58 of the non-conductive flexible member 52. Sliders 80, 82 at the ends of the wires 72, 74 contact the inner surface of a resistive collar 60 which is connected by wires 62, 64 across a voltage supply 70. In a second embodiment Fig. 7 (not shown), the two sensing wires are resistive and connected in adjacent arms of a resistance bridge, movement of the ends of the wires past brush contacts (140, 142) unbalances the bridge and provides an indication of curvature. In a further embodiment Fig. 9 (not shown), the moving ends of the sensing wires are connected by a wire (158) which operates a potentiometer (150) when the flexible member is flexed. Two pairs of sensing wires may be used on the flexible member to measure flexing in two different planes, or two sensing wires may extend spirally along the flexible member in opposing rotational directions, Fig. 13 (not shown) to measure twist about the longitudinal axis of the member. Devices with a single pair of wires, with two pairs of wires, and with spiralled wires, may be connected together end to end to form a single flexible member, to measure flexing in different planes and twist about the longitudinal axis.
Patent GB-431832-A (GB)
Title: An improved mitre cutting block having a two way mitre shoot and cramp combined
IPC: B27G5/04
Filed: 1934-12-19
Abstract: 431,832. Corner cramp and mitre cutter. DUCKWORTH, T., 3, Church Lane, Islington, London, and BARRINGTON, W., 51, Kensington Avenue, Watford, Hertfordshire. Dec. 19, 1934, No. 36356. [Classes 61 (ii) and 145 (i)] A combined mitre cutter, shooting board, and corner cramp comprises a base A with raised centre strip C grooved to receive tongues on a centre block B with its sides cut at 45‹ and on clamping blocks B2 slidable towards and away from the centre block and having clamping faces also at 45‹. The workpieces M are clamped between the blocks by means of wedges W and adjustable pulleys D or cams, quick screws &c. may be employed instead.
Patent GB-928366-A (GB)
Title: Improvements in or relating to cooking stoves
Inventor: CLARK ROBERT ALLEN
IPC: F24C15/10
Filed: 1961-10-10
Abstract: 928,366. Cooking stoves. CALORIC APPLIANCE CORPORATION. Oct. 10, 1961, No. 36396/61. Class 126. In a cooking stove the burner openings 16 in the main top are each surrounded by a continuous pendent flange 18 from the lower edge of which project spaced horizontal ledges 20 . . . 22 upon which a downwardly turned rim flange 28 of the bowl or drip tray 24 for a burner 10 rests, the bowl being centred by abutment against the edges 23 of the ledges. The grate consists of a ring 12 with radial utensil supporting arms 14 and rests on the ledges between the flange 18 and the rim flange 28 and has three spaced tongues such as 32 which depend from the ring 12 with small clearance into spaces 34 . . . 36 between the ledges 20 . . . 22, thus preventing rotation of the grate. With this arrangement only the upper edge of the grate ring and its arms 14 project above the main top 15.
Patent GB-1018731-A (GB)
Title: Improvements to mixing or heating tanks
Inventor: DEWHURST RICHARD HENRY BALLANS
IPC: E01C19/10
Filed: 1962-09-26
Abstract: 1,018,731. Mixing asphalt. MUNICIPAL APPLIANCES CO. Ltd. Dec. 6, 1963 [Sept. 26, 1962], No. 36472/62. Heading B1C. In an asphalt cauldron the stirrer shaft 12 is carried at both ends in plain bearings within the tank as at 14 and the drive thereto (as shown, a chain 13b) enters the tank 11 above the normal level of the asphalt, so that no shaft gland is required. Additional stirring and scraping blades (not depicted) may be attached to the chain 13b or to the chain wheel 13a; in the latter case they may be of ploughshare type.
Patent GB-400793-A (GB)
Title: An improved process of and apparatus for influencing the processes of combustion in the hearths of shaft furnaces
IPC: C21B7/16
Filed: 1932-12-28
Abstract: 400,793. Tuyeres for blast furnaces. KUNKELE, M., 52, Geibelstrasse, Duisburg, Germany. Dec. 28, 1932, No. 36717. Convention date, Dec. 28, 1931. [Class 51 (i).] In a blast furnace the oxidation zones in front of the tuyÞres are varied in size by means of adjustable members disposed within the tuyeres and movable axially inside and beyond the mouths thereof. Fig. 1 shows a tuyere 2 with the axially adjustable watercooled member 1 for carrying out the invention. The member 1 may according to a modification be solid. Fig. 6 shows a further modification in which the adjustable member 6 is cylindrical in shape and water-cooled.