baber/WOPTO huggingface dataset:
Patent GB-998502-A (GB)
Title: Vapor generator
IPC: F22B1/18
Filed: 1963-11-11
Abstract: 998,502. Forced flow steam boilers. COMBUSTION ENGINEERING Inc. Nov. 11, 1963 [Dec. 28, 1962], No. 44361/63. Heading F4A. A high temperature shell and tube vapour generator having a relatively thick tube sheet designed to keep the thermal stresses within reasonable limits by mounting the hottest tube ends in an offset of the tube sheet, consists of a substantially closed cylindrical shell 12 having a domed head 14 and divided by a tube sheet 16 into a vapour-generating portion 18 and a head portion 20. Bundles of U-tubes 22, 24, 26 forming economizer, evaporator and superheater sections, having their inlet and outlet ends mounted in tube seats 28 in the tube sheet, extend into the vapour generating portion containing tube bundle compartments formed by imperforate and perforate baffle plates 64, 66 which serve to direct the heating fluid in series flow from the inlet nozzle 60 over the superheater, evaporator and economizer tubes, through an annular passage 72 formed by a baffle 70 thereby cooling the shell wall to an outlet nozzle 62, the ends of the tube bundle compartments are closed by baffle plates 68, 69. The head portion is divided into a number of compartments by baffles interconnected through nozzles and external pipes (not shown) such that heated fluid is passed in series through the tube bundles. The outlet ends of the superheater tubes are mounted in a circular offset section 74 connected by a relatively thin-walled cylindrical transmission member 76 to the remainder of the tube plate and the superheated vapour is exhausted through a dome-shaped cap 90, a bellows 96 and a nozzle 58 having an insulating sleeve 101. The member 76 is enclosed by insulating members 78, 82, the latter extending over the cap 90. Access to the tubes is provided by a manhole 104 in the head 14 and openings in the baffles within the head.
Patent GB-1028335-A (GB)
Title: Improvements in and relating to electric motors
IPC: H02P6/20
Filed: 1962-11-26
Abstract: 1,028,335. Transistor circuits. FABRIQUES MOVADO. Nov. 26, 1962 [Dec. 27, 1961], No. 44564/62. Heading H3T. [Also in Divisions G1, H1 and H2] The stator winding of an electric motor is energized from a D.C. source by transistors controlled from a pick-up device which supplies a signal in accordance with rotor position. Two transistors are used so that current can be supplied in both directions to the stator winding, which may be centre tapped, and each is controlled by a pick-up device connected to the base of each transistor, Fig. 4 (not shown). In a modification a transistor trigger circuit connects together the two switching transistors so that one is conductive when the other is blocked and only one pick-up device is needed, Fig. 5 (not shown). In a further modification again using one pick-up device a blocking transistor oscillator connected in shunt across the first switching transistor is used to control the second switching transistor, the oscillator being operative only when the first switching transistor is blocked; Fig. 6 (not shown). A further circuit using one pick-up device controlling two switching transistors relies on the voltage induced in an auxiliary winding wound on the motor stator to control the second transistor. Figs. 7 and 8 (not shown). Various types of non-contact making pick-up devices are disclosed including an inductive system where a receiver coil is shielded from a transmitter coil, energized at high frequency, by a conductive disc which has notches cut in its periphery. The induced signal being detected and amplified before being applied to the base of one of the switching transistors. Alternatively a photo-electric cell or photo-transistor may be used with in the latter case a germanium diode which effects biasing and temperature compensation. A normal transistor amplifier being used to supply sufficient power to operate the switching transistor, Fig. 19 (not shown).
Patent GB-1156432-A (GB)
Title: Multiple Sample Grinding and Polishing Machine
Inventor: ADE-HALL JAMES MARTIN
IPC: B24B37/10
Filed: 1966-10-07
Abstract: 1,156,432. Grinding and polishing. J. M. ADE-HALL. 5 Oct., 1967 [7 Oct., 1966], No. 44866/66. Heading B3D. A polishing and grinding machine comprises at least one platform 2 which is mounted above and parallel to a grinding table 14 and is mounted for rotation about its central axis and additionally for rotation about the central axis of the grinding table, the platform having means for mounting a plurality of samples 4 rotatable relative to the platform for grinding and polishing on the table. The platform 2 is of transparent plastic and supports the samples by means of pins 6 on which are placed weights 8, the samples engaging the grinding table 14 from which pillars 30 extend and carry a bridge 28. An arm 16 is rotatably carried by the bridge and driven from a motor 18 and has means 22 at each of its ends for carrying the spindles 12 of two platforms 2. During rotation of the arm, the platform and samples are rotated by differential drag. Abrasion material is supplied with water or kerosene through a conduit 24, surplus liquid passing through a drain 26. For polishing, a cloth in which is abrasive powder and water, is stretched across the table.
Patent GB-1245775-A (GB)
Title: Voltage stabilizing device connected to a detector for infrared radiation
Inventor: GUSTAFSON KJELL ARNE HAKAN
IPC: H04N5/33
Filed: 1968-09-23
Abstract: 1,245,775. Infrared sensitive, diode circuits. BOFORS A.B. Sept.23, 1968 [Sept. 27, 1967], No.45187/68. Heading G1A. The voltage across an infrared sensitive diode of e. g. an infrared camera is stabilized by a circuit connected in parallel with the diode to sense voltages thereacross and means to amplify and feedback to the detector slow variations in the sensed voltage. Slow variations of voltage across detector diode D which are passed by a low pass filter R2, R3; C2, C3; are chopped by transistor Q3 to form the input to an A.C. amplifier Q4, Q5, Q6. The amplifier output after demodulation by a transistor chopper Q7 and smoothing by a capacitor Cl is fed back over resistor R1 to oppose the voltage variations across diode D. Since the input and output of amplifier Q4, Q5, Q6 are in antiphase, choppers Q3 and Q7 are connected to the same collector of a multi-vibrator Q1, Q2 to chop in phase. The choppers would be connected to different collectors if the amplifier input and output were in phase.
Patent GB-1213744-A (GB)
Title: Improvements relating to the hydrocatalytic refining of waxes
IPC: C10G73/44
Filed: 1968-09-24
Abstract: 1,213,744. Hydrofining waxes. BRITISH PETROLEUM CO. Ltd. 24 Sept., 1968 [3 Oct., 1967], No. 45296/68. Heading C5W. In the catalytic hydrofining of waxes in the presence of a hydrogenating metal on an alumina support, 0À001-1% by wt., based on the wax feed, of ammonia or a nitrogen base decomposable thereto is added to the reaction zone. Pyridine is specified. After contact with the alumina-supported catalyst the wax may be contacted with a catalyst consisting of a hydrogenating metal on active carbon. Specified metals are Mo, Cr, W, Ni, Co, Fe, Re and the Pt group, used as oxide or sulphide. The refining may be effected at 250-360‹ C. and 0-200 atm., with at least 20 vols. H 2 /vol. wax; preferably wax in the liquid phase or a fixed bed of catalyst are used. Paraffin or microcrystalline waxes are treated.
Patent GB-1196172-A (GB)
Title: Substituted Chromanone Hydrazones and a process for the preparation thereof
Inventor: FOURNARI PIERRE
IPC: C07D311/32
Filed: 1967-10-04
Abstract: 1,196,172. 6 - Amino - 2 - aryl - chroman - 4- one hydrazones. P. FOURNARI. 4 Oct., 1967 [5 Oct., 1966], No. 45306/67. Heading C2C. The invention comprises compounds of formula and their pharmaceutically acceptable non- toxic salts, wherein AR is selected from in which X and Y are each H, Cl, Br, I, F, CF 3 , NO 2 , alkyl, alkoxy, alkylthio or dialkylamino, and a process for making them by reacting the corresponding chromanone with hydrazine in an inert solvent. Therapeutic compositions for oral or parenteral administration comprise the above hydrazones, which possess sedative, muscle-relaxant and hypotensive activity, with a diluent or carrier.
Patent GB-1491278-A (GB)
Title: Electric power circuit breaker
IPC: H01H33/825
Filed: 1975-10-31
Abstract: 1491278 Gas-blast circuit-breakers BBC BROWN BOVERI & CO Ltd 31 Oct 1975 [10 Dec 1974] 45537/75 Heading H1N A gas blast circuit-breaker has a gas filled chamber 4 of a pressure such as 150 atmospheres and a movable contact 13 openable by the gas when a toggle 11 is permitted to collapse, the gas driving the contact arc between runners 24, 25 and across insulating gas escape nozzles 23 which vent a chamber 21. The movable contact 13 in the contact closed position engages contact fingers 19, one 19a of which is arranged to disengage last to strike the arc across the upper ends of the oppositely coiled half turn helical runners 24, 25 which are mounted in opposite walls of the chamber 21 so that the current path (Fig. 6) eventually extends along the runner 24 to a runner end plate 24 across the nozzles 23 at L and to a runner plate 25 to a terminal 17.
Patent GB-1431529-A (GB)
Title: Fluid energy grinding mill
IPC: B02C19/06
Filed: 1974-10-22
Abstract: 1431529 Jet mills FLUID ENERGY PROCESSING & EQUIPMENT CO 22 Oct 1974 [23 Oct 1973] 45611/74 Heading B2A To prevent incrustation the discharge outlet duct 18 Fig. 1 of a jet mill 10 has a screen 36 whose cross-section conforms to the interior cross section of the duct 18, and is inwardly spaced therefrom, gaseous fluid being delivered to the space. This fluidises material in the duct and prevents it sticking. In one embodiment the screen 36 is held in place by a manifold ring 38, Fig. 2, which inclines radial ports 40, and is supplied with gas via a conduit 46. The manifold ring may be arranged outside the duct, Fig. 4, not shown or may be replaced with a single supply conduit 56, the screen 52 being supported by brackets 54, Fig. 3. The mill 10 includes auxiliary jets 34 to assist circulation around the outlet opening 17. The screen may be used in the gas discharge duct 112 of a horizontal jet mill 100 Fig. 5.
Patent GB-1109584-A (GB)
Title: Fluid pressure sensitive electric switch
IPC: H01H35/26
Filed: 1965-11-01
Abstract: 1,109,584. Fluid actuation of switches. W. BECK. 1 Nov., 1965 [11 Nov., 1964], No. 46083/65. Heading H1N. A switch having a contact-carrying blade (11), (Fig. 1, not shown) projecting between contacts (8), (9), and operated by a tongue 12 subject to the action of a quick-acting spring 13, is characterized by two restoring springs 18, 19, connected in series and acting on the actuating tongue 12, the travel of the weaker spring 19 being limited. A disc 21 between springs 18, 19, abuts a pin 23 on an adjustable bolt 17 to limit the travel of spring 19. In an alternative embodiment (Fig. 3, not shown), an intermediate member (26) between springs (18) and (19) has a collar (28), which limits the travel of the stronger spring (18), and a pin (31), which limits the travel of the weaker spring (19). Screw (17), (Fig. 4, not shown), may initially compress spring (18) such that springs (18), (19) become successively effective when actuated by tongue 12 as a result of fluid pressure upon a diaphragm (5) and push-rod (7), (Fig. 1, not shown), which engages tongue 12.
Patent GB-1456613-A (GB)
Title: Concealed sliding clasp fastener having warpknitted stringer tapes
IPC: A44B19/12
Filed: 1974-10-29
Abstract: 1456613 Concealed sliding clasp fasteners YOSHIDA KOGYO KK 29 Oct 1974 [9 Nov 1973] 46845/74 Heading E2S A concealed sliding clasp fastener 10 comprises a pair of opposed stringer tapes 11, 11, carrying respective pairs of fastener elements 12, each of the stringer tapes having a longitudinally extending marginal edge portion 18 to which a corresponding row of fastener elements 12 is secured, a web portion, and a longitudinal extending flexing portion 19 connecting the marginal edge and web portions to accommodate folding of the tape into a configuration in which part of the web portion overlaps the marginal edge portion 11d, the web portion having a plurality of longitudinally extending alternate wales and grooves all on one side of the tape, the edge portion having a generally flat surface on said one side of the tape, said flat surface being in contact with said row of fastener elements, the edge portion having a plurality of longitudinally extending alternate wales and grooves all on the opposite side of the tape. Also according to the invention the flexing portion has a surface recessed in relation to the flat surface of the edge portion to accommodate folding the tape into said configuration with the edge portion and said part of the web portion facing each other on opposite sides of the tape. As shown, spring coil fastener elements 12, with reinforcing cords 14, are secured by sewing threads 13 to the respective tapes 11 which are preferably formed by warp-knitting. When attaching the fastener 10, e.g. to a garment 20, the marginal edge portion 18 of each stringer tape 11 is folded about the flexing portion 19 until the loop 12a, 12b of the fastening element 12 are substantially upright, as shown in Fig. 2, the opposed side walls 19a, 19b of the flexing portion 19 being spaced apart to provide for unobstructed passage of a sewing needle, not shown, when forming the stitching 21.
Patent GB-1172227-A (GB)
Title: A Process for Melting Consumable Electrodes
IPC: C22B9/18
Filed: 1966-10-19
Abstract: 1,172,227. Casting processes. ALLEGHENY LUDLUM STEEL CORP. 19 Oct., 1966 [20 Oct., 1965], No. 46864/66. Heading B3F. [Also in Divisions C7 and H5] To form a pure ingot 18, an arc is struck between at least one electrode 24 and a starter body (of the electrode material) in a cooled mould 10, e.g. of copper, to form a pool of molten metal and then adding slag ingredients (which may have been prefused together, cooled and subdivided) to form a layer 22 of molten slag to extinguish the arc and melt the electrode end which is maintained in contact with the slag while A.C. is passed between the electrode end and the molten metal 20 or between the ends of adjacent electrodes. The electrode or electrodes is or are lowered, possibly automatically, at the rate at which the length is reduced by the melting. As shown there are three consumable electrodes 24, each connected to a phase of a three-phase A.C. supply and each with a driving ram 26. A starter plate is first placed on the mould bottom and covered with scraps of the metal. It may then be partly covered with prefused slag. The electrodes are lowered to strike an arc, e.g. in a helium atmosphere, and establish a pool of molten metal before slag is slowly introduced until it extinguishes the arc and electroslag melting proceeds. Melting of steel may be performed in a vacuum. A helium purge may be maintained, particularly for melting Ti or Zr, while cooling the ingot 18. The slag (see Division C7) may comprise CaF 2  alone or mixed with Al 2 O 3  and CaO and (possibly) TiO 2 . A mixture of Al 2 O 3 , MgO, CaO and SiO 2  may be used.
Patent GB-1092989-A (GB)
Title: Improvements in and relating to hygrometers
IPC: G01N27/12
Filed: 1966-10-20
Abstract: Crystalline cobaltous oxide is formed by decomposing cobalt carbonate and/or cobalt acetate in air at 1000 DEG  C., mixing the powder into a paste with an inert liquid comprising a vaporizable solid (e.g. terephthalic acid, furoic acid or ammonium sulphate), a resinous binder (e.g. a natural gum, or synthetic resin) and a solvent (e.g. aromatic hydrocarbon), and firing at above 1350 DEG  C. The material is used in a hygrometer element whose electrical resistance is sensitive to moisture content.
Patent GB-1213339-A (GB)
Title: Method of manufacturing luminescent screens
IPC: H01J9/227
Filed: 1968-10-04
Abstract: 1,213,339. Luminescent screens. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 4 Oct., 1968 [7 Oct., 1967], No. 47133/68. Heading H1D. A method of manufacturing a luminescent screen for a C.R.T. comprises using a polyvinyl alcohol of average molecular wt. at least 100,000 e.g. 105,000 and preferably having a degree of hydrolysis of 88%. An excess of the luminescent suspension in a photosensitive lacquer consisting of a bichromate and polyvinyl alcohol aqueous solution from a storage container 10 (Fig. 8, not shown) is dispersed on to the screen, the excess removed, the remainder dried, exposed to light in accordance with a desired pattern and the non-exposed areas of the lacquer washed away. The excess suspension is returned to the storage container via funnel (33) and the suspension therein is replenished by suspension from a further container (24). The process may be repeated to produce further patterns as in colour tubes. Viscosities and specific gravities of the suspensions as a function of time are considered (Fig. 9, not shown). The method allows a reduction in the exposure time and the recycling of the suspension maintains the viscosity of the solution within narrow limits, and also the photosensitivity, a varying exposure time not being acceptable in a continuous process.
Patent GB-1411829-A (GB)
Title: Road vehicle steering mechanisms
IPC: B62D6/04
Filed: 1973-10-09
Abstract: 1411829 Vehicular steering arrangements HONDA GIKEN KOGYO KK 9 Oct 1973 47158/73 Heading B7H A steering mechanism includes means for course correction and comprises detector means A and B adapted to produce an output oil pressure respectively proportional to the amount of steering motion applied to a steering wheel 1 and to the rate of directional change of the vehicle, means C for comparing the pressures and adapted to produce an output pressure proportional to the difference therebetween which operates power means 10-11 for applying a correcting force to the wheels. On rotating wheel 1 pressure is transmitted via line 6 or 7 to the comparator C, and as the vehicle turns detector B, which may be a yaw rate detector, supplies pressure to a central inlet of the comparator. Any pressure difference detected by the comparator, due for, example, to wheel slip, uneven road surface or wind, causes pressure to be supplied via line 8 or 9 to chamber 10 1  or 10 2  of the cylinder 10.
Patent GB-1321767-A (GB)
Title: Method for separation of cresol from cymene
IPC: C07C37/86
Filed: 1971-10-12
Abstract: 1321767 Purifying cymene USS ENGINEERS & CONSULTANTS Inc 12 Oct 1971 [12 Oct 1970] 47508/71 Heading C5E Cresol is removed from a mixture of cymene and cresol by neutralizing the mixture with an aqueous alkali metal salt of cresol, decanting the organic phase, distilling to remove some of the cresol impurity, washing the distilled phase with an aqueous caustic solution, e.g. NaOH, to form an alkali metal salt of the remaining cresol and decanting the aqueous phase containing the alkali metal cresylate, at least part of this aqueous phase being recycled to the neutralization step. The cresol removed in the distillation is mainly m and p cresols whereas ocresylate forms about 75% of the cresylate in the recycle stream.
Patent GB-1004909-A (GB)
Title: Improvements in and relating to method of and apparatus for treating web-like materials
IPC: F26B13/16
Filed: 1962-12-17
Abstract: 1,004,909. Textile treating apparatus. FLIESSNER Ltd. Dec. 17, 1962 [Dec. 15, 1961], No. 47576/62. Heading D1L. [Also in Division F4] In treating e.g. steaming fixing and/or drying fabric webs on screening drums subject to suctiondraught, the fabric is conveyed around each drum, folded normal to the fabric supporting surface thereof. As shown material 3 is fed into the apparatus by rollers 1, is fed round perforated drums 2 and 4 and out via rollers 5. The speed ratio between rollers 1 and drum 2 is such that the material is folded on drum 2 and the speed ratio between drums 2 and 4 is such that the material is slowed down on drum 4. The speed of rollers 5 is less than that of rollers 1 to allow for shrinkage of the material. In a second embodiment the material is folded on to a conveyer belt prior to feeding into the apparatus. Fans are provided for producing suction inside the drums for drawing treating medium through the material. There may be several fans associated with each drum or one variable fan may be used.
Patent GB-1495512-A (GB)
Title: Process for the production of pigment preparations
IPC: C09D17/00
Filed: 1974-11-05
Abstract: 1495512 Pigment / polymer preparations DEUTSCHE GOLD - UND SILBER SCHEIDEANSTALT 5 Nov 1974 [7 Nov 1973] 47764/74 Headings C3P and C3R A pigment preparation is made, from a dispersion of a pigment (P) in a solution of a polymer (R) in a solvent (S), by (1) adding a liquid (L) being a non-solvent for (R) with thorough mixing, (2) separating off the precipitate, and (3) drying, where steps (1) and (2) are performed at room temperature. (P) is carbon black optionally mixed with an Fe(II), Fe(III)-cyano complex; (R) is a vinyl or vinylidene chloride copolymer, polyacrylonitrile, or polyamide, poly-(ether or ester)urethane; (S) is a ketone, dimethylformamide, an optionally aqueous alcohol, and/or an ester; and (L) is water or a hydrocarbon. Uses.-In lacquers, printing ink, or plastics.
Patent GB-1273758-A (GB)
Title: Lawn mowing machine for tractor-mounted lawn mowers
Inventor: STRASEL RAYMOND KENNETH
IPC: A01D34/43
Filed: 1969-09-29
Abstract: 1,273,758. Mowers. JACOBSEN MFG. CO. 29 Sept., 1969 [18 Oct., 1968], No. 47770/69. Heading A1F. The description is the same as that of Specification 1,273,757 but the claims refer to the lift mechanism for the mowers comprising an over center cam arrangement in which cams 113, 127, 138 connected to a hydraulic piston 101 engage rollers 114, 128, 144 respectively on lift arms 74, 146 to raise the mowers.
Patent GB-1068217-A (GB)
Title: Cooling tower
IPC: E04H12/28
Filed: 1964-11-25
Abstract: 1,068,217. Cooling towers. I. DOGANOFF. Nov. 25, 1964 [Jan. 2, 1964], No. 48013/64. Heading F4K. In a cooling tower having a casing formed of thin prefabricated concrete components , the horizontal joints have transversely projecting stiffening rings 1. The arrangement is intended for use in a tower which includes a fan. As shown, a stiffening ring is in the form of a truncated cone, the resulting stiffness being sufficient to raise the natural frequency of vibration of the assembly and enables a higher fan speed to be used. Concrete 2, cast during assembly, unites the casing components. In another embodiment (Fig. 1) a flat stiffening ring is pre-stressed by a reinforcing rod. In another embodiment (Fig. 2) a hollow stiffening ring is formed by placing a channel-shaped ring upon a flat ring and securing the two together by means of concrete. In a method of manufacturing a cooling tower pre-fabricated components are assembled to form large size sub-assemblies before erecting the tower.
Patent GB-1147275-A (GB)
Title: Electrical push-button switch
IPC: H01H13/28
Filed: 1967-10-24
Abstract: 1,147,275. Retractive pushbutton switches. E. MARQUARDT, J. MARQUARDT, H. MARQUARDT, and E. MARQAURDT, [trading as FIRMA J. & J. MARQUARDT]. 24 Oct., 1967 [26 Oct., 1966], No. 48294/67. Heading H1N. A snap-action retractive switch comprises a lever 10 pivotally mounted on a terminal 4 and pivotally mounting a rigid changeover contact arm 9 (see Fig. 2), a tension spring 11 mounted on arm 9 and a pin 13 and displaced out of the direct line connecting its mounting points by a constraint 12 formed on lever 10, and an operating button 14. Depression of button 14 causes lever 10 to pivot clockwise about its bearing on terminal 4. This lowers the mounting point of arm 9 and raises constraint 12 with spring 11 following it. Spring 11 snaps overcentre and contact 8 changes over from contact 7 to contact 6. Spring 11 may be mounted on pins 15, 16 or 17 to lower or increase the operating force. Constraint 12 may act on one side only of spring 11.