baber/WOPTO huggingface dataset:
Patent GB-1487516-A (GB)
Title: Process for preventing wall deposits during vinyl chloride polymerisation
IPC: C08F14/00
Filed: 1975-02-07
Abstract: 1487516 Polymerizing vinyl chloride CHEMISCHE WERKE HULS AG 7 Feb 1975 [8 Feb 1974] 5239/75 Heading C3P Deposits on reactor walls in the aqueous medium polymerization of vinyl chloride are prevented by coating or lining the walls of the reactor with nickel or using a reactor made of nickel.
Patent GB-992435-A (GB)
Title: Iron carbonitride powder and process for the production thereof
IPC: C04B35/58
Filed: 1963-02-08
Abstract: The invention comprises e -iron carbonitride powder, substantially free from a -iron, containing 1-3% by weight of carbon, and a maximum of 7% by weight of nitrogen existing substantially only in the e -iron nitride phase. It is prepared by heating iron powder with a mixture containing 30-100% of alkali metal cyanate and 70-0% of alkali metal cyanide to 450-650 DEG  C., and removing the salt after cooling by dissolving in water.  The ratio of iron to salt mixture is advantageously 1 : 1 to 1 : 3 by weight.
Patent GB-765402-A (GB)
Title: Improvements in and relating to vegetable cutters
IPC: A47J42/24
Filed: 1955-02-22
Abstract: 765,402. Vegetable cutters. KLITGAARD, M. B. Feb. 22, 1955 [Feb. 25, 1954], No. 5278/55. Class 5(1). In cutting vegetables by knives 7 hand rotated in slots between spaced co-operating bars 8, the bars 8 are rigidly secured in the base 1 by being welded to the base 1 or the base 1 is cast around the bars. The hopper 6 is removably secured by its side lugs 8, one lug 8 fitting under a yielding wire 10 fixed on the base and the other lug being held down by turning a catch 11.
Patent GB-621371-A (GB)
Title: An improved method for the manufacture of chewing gum
IPC: A23G4/00
Filed: 1947-02-24
Abstract: Chewing gum is made from the latex of the plant Euforbia baleamifer. The latex is filtered, coagulated by heating to a soft paste, stirred while allowed to cool to a hard paste and then kneaded in cold water to remove air bubbles and uncoagulated latex.  The paste is then kneaded in hot water to whiten and deodorize it and then plunged in cold water.  Rollers then knead and spread out the paste which is then powdered with talc and cut into pieces, allowed to dry on wire netting then coated with sugar by revolving in a drum containing sugar syrup with starch. Further coating with sugar syrup containing peppermint and cream of tartar.  The pieces are finally heated for 5 or 6 hours.
Patent GB-360772-A (GB)
Title: Improvements in, or relating to, brake drums
IPC: F16D69/02
Filed: 1931-02-19
Abstract: In the brake drum described in the parent Specification a liner of an iron alloy is used which is free from chromium and contains 0,5-30 per cent of nickel, 3-3,75 per cent of carbon, 1-2,5 per cent of silicon, and 0,4-1 per cent of manganese.
Patent GB-314483-A (GB)
Title: Method of and apparatus for preparing fine granules of soap
IPC: C11D13/20
Filed: 1929-02-18
Abstract: 314,483. Colgate-Palmolive-Peet Co., (Assignees of Schwantes, J. A.). June 28, 1928, [Convention date]. Soaps, powdered, shredded, and granulated. - Soap powder or shreds are made by allowing finely divided liquid soap to descend against an ascending current of heated air, the air-current being reversed adjacent the shredder by means of a fan, and the air being freed from entrained particles before discharge 'to the atmosphere. For example, liquid soap is fed by a pipe 14 to a shredder 10 comprising oppositely rotating concentric heads 15 as described in Specification 314,484. The soap particles fall through a chamber 11 against a current of air heated to 125 F. by passage over heaters 19 before entering the chamber 11 through ports 20 formed by stamping out louvres so that the air is given a centrifugal motion and prevents deposition of the soap particles on the chamber walls. The particles are discharged by a valve 29 on to a conveyer 30 passing through a cooling chamber 31. The air passes to the fan 32 by a pipe 35 and a cyclone separator 34 in which entrained soap particles are deposited. A fan 37 is attached to a moving part of the shredder 10 as described in Specification 314,484 to direct the neighbouring air downwards and so prevent deposition of soap particles thereon. Choking of the ports 20 is prevented by a revolving cleaner.
Patent GB-631750-A (GB)
Title: Improvements in or relating to fuel-control valves
IPC: F23N1/00
Filed: 1947-02-24
Abstract: 631,750. Spray burners. MORLEY, C. G. Feb. 24, 1947, No. 5372. [Class 75(i) [Also in Group XXIX] A variable orifice fuel-injection device comprises a fuel control valve of the type in which the effective sizes of flow orifices are varied by relative adjustment of a plunger and a cylinder, one of these adjustable elements being provided with a spherically curved surface to abut a complementary surface on a seating part which is capable of displacement in a plane at right angles to the axis of the adjustable elements. A cylinder 16 in which a plunger 15 slides to vary the flow of oil through tangential slots 17 in the cylinder wall is provided with a head 18 having a part spherical surface 19 which is lapped to a complementary surface on a ring 20 seated on an annular flat surface 22 on the end of a fuel chamber 11. The head 18 of the cylinder is pressed against the seating ring 20 by a spring 24 or alternatively by the pressure of the fuel. Displacement of the axis of the cylinder relative to the axis of the fuel chamber 11 is accommodated by sliding between the part spherical surfaces and by transverse movement of the seating ring 20. The plunger 15 which is a lapped fit within the cylinder is threaded into a nut 14 closing the fuel chamber and is provided with a squared portion 25 and a collar 26 for adjustment purposes and with a locking nut 27. Fuel passes out of the cylinder through an outlet in its spherical wall to a port 21 in the seating ring leading to a fuel outlet 13 in the fuel chamber. The valve may be used in a gas turbine fuel system as a main throttle valve or as a subsidiary valve arranged in parallel with the main throttle valve to control the flow of fuel to the engine when idling. When used in variable orifice injection means, the tangential ports 17 constitute the variable orifice and the port 21 in the seating ring constitutes an atomizing orifice and the plunger is subjected to the inlet pressure of the fuel.
Patent GB-491018-A (GB)
Title: Improvements in or relating to throttle-controlled induction systems of internal combustion engines of the compression-ignition type
IPC: F02D9/00
Filed: 1937-02-24
Abstract: 491,018. Regulating. SWINNEY, T. J. Feb. 24, 1937, No. 5526. [Class 7 (vi)] In compression-ignition engines, the air is supplied to the cylinders through at least two pipes, preferably concentric, one only of which is provided with a throttle valve, so that where the suction in the induction pipe is used for braking or other external purposes, this suction effect will not be entirely eliminated if the throttle should become locked in the closed position. The Figure shows air-inlet pipes 5, 8, the inner one of which is free, while the outer one is adjusted by an annular throttle valve 10 working over a spherical enlargement 9 on the inner pipe. A Venturi or choke element may be fixed within the inner pipe ; or the outer pipe may be unobstructed and the inner pipe provided with a butterfly throttle.
Patent GB-397202-A (GB)
Title: Improvements in or relating to motion picture projection and sound reproducing apparatus
IPC: G03B31/00
Filed: 1932-02-24
Abstract: 397,202. Combined sound-reproducing and kinematograph apparatus. ELECTRICAL RESEARCH PRODUCTS, Inc., 195, Broadway, New York, U.S.A., JEFFCOCK, R. J. P., 21, Kensington Court, Kensington, and FOSTER, D. B., 3, Castle Bar Road, Ealing, both in London. Feb. 24, 1932, No. 5567. [Class 40 (ii).] Relates to talking-motion picture systems of the kind comprising two picture projecting and sound-film reproducer apparatus arranged for alternate working. According to the invention, current for the projector lamps, exciter lamps, and speech-current amplifiers is supplied alternatively to the respective sound- and-picture apparatus from a single power-supply unit by means of a multiple switch, which also serves to connect the respective amplifier output circuits alternatively to a common transmission circuit. The invention is particularly intended for portable apparatus. Preferably the projector lamps are connected in series, and the one not in use is short-circuited ; in an intermediate position of the switch, both lamps are energized at a reduced brightness. The exciter lamps may also be series-connected. The switch may be so arranged that the output from the amplifiers or the common transmission circuit, may be short-circuited prior to and during the change-over switching operations in the other circuits. The projector motors may be fed from the power supply unit through the switching unit. The Figure shows diagrammatically the connections between a throwover switch S and "sound on film " picture projectors P<1>, P<2>, M being a power unit connected to the supply mains N, and L being a combined amplifier and loud-speaker unit. Figs. 2 and 3 (not shown) illustrate suitable arrangements for short-circuiting the projector lamps and the sound-transmission circuit during the change-over operation.
Patent GB-776827-A (GB)
Title: Improvements in neoprene cement
IPC: C08L11/00
Filed: 1954-02-25
Abstract: A quick-curing rubbery cement is obtained by dissolving polychloroprene in a solvent and adding as accelerators an alkyl aminoalcohol and carbon disulphide or the reaction product thereof. Specified amino-alcohols are mono-, di- and tri-ethanolamines, mono-, di- and tri-propanolamines, isobutanolamine and 2-amino-2-methyl propanol.  There may also be present an aliphatic or cyclo-aliphatic amine, e.g. morpholine, t-butylamine, di- or tri-ethyl, methyl, propyl, butyl or amyl amines, propylamine, dibenzyl amine, di-(2-ethyl hexyl) amine, mono- or di-cyclohexylamine, benzyl-di-ethylamine, tri-n-propylamine and piperidine.  Specified solvents are benzene, toluene, xylene, ethylene dichloride, trichloroethylene, amyl acetate, butyl formate, butyl acetate, ethyl acetate, ethyl propionate, methyl ethyl ketone, isophorone and mixtures thereof or with gasoline.  A retarder, e.g. zinc propyl or butyl or amyl xanthate or zinc isopropylxanthate may also be present.
Patent GB-761350-A (GB)
Title: Method of producing workpieces from metal powders if desired with the simultaneous use of non-metallic powders
IPC: B22F3/00
Filed: 1953-02-27
Abstract: A method of producing a workpiece from metal powder, with or without other powders, consists in producing a number of preliminary bodies by subjecting bodies, preformed from said powder, to one or more plastic deformation operations and then uniting a number of said preliminary bodies in at least one further plastic deformation operation.  The deformation operations consist of extrusion, drawing, die pressing, forging, rolling and upsetting.  Arrangement of the preliminary bodies may give a finished body varying in its properties from side to side. Non-metallic powders such as silicon, carbon, carbides, oxides and nitrides may be added.  Powder may be added between operations. In an exmaple, a 25 per cent Si, 75 per cent Al powder of 0,06 mm. grain size was preformed and then extruded into bars of 13 mm. dia.; 25 such bars were then bundled and extruded to a diameter of 20 mm.
Patent GB-1221797-A (GB)
Title: Improvements in or relating to cam boxes for flat knitting machines
IPC: D04B15/36
Filed: 1968-02-05
Abstract: 1,221,797. Kniffing-machines. EDOUARD DUBIED ET CIE. 5 Feb., 1968 [6 Feb., 1967], No.5626/68. Heading D1C. To ensure a uniform and when necessary a smooth change in the direction of movement of the needles of a flat machine, the needles or associated jacks manipulating the needles are each provided with two spaced butts 6, 7 or 6', 7# which engage correspondingly spaced cams 12, '14, 16, 17, 21, 23, 24, 25, 28 whereby either one or the other butt is in engagement with the appropriate cam during the passage of the cam carriage. The cams at each level are arranged to overlap at the point at which a change of direction of movement of the needles occurs so that the butts of the needles follow paths which ensure that the needles operate smoothly and without the butts being subjected to sudden impact loads in a transverse direction on engagement with the cams. The jacks may be pivoted to the end of the needle shanks whereby they can be depressed within the needle bed tricks for selection as required. The cams may also be moved into or out of butt engagement for needle selection purposes.
Patent GB-814915-A (GB)
Title: Aircraft control systems
Inventor: SUMMERLIN FREDERICK ARTHUR
IPC: G05D1/08
Filed: 1957-02-19
Abstract: 814,915. Automatic aircraft control systems. SPERRY GYROSCOPE CO. Ltd. Feb. 19, 1957, No. 5650/57. Class 38 (4). In a control system for an aircraft an electrical control signal applied to the aileron servomotor control channel to set the bank angle for a turn in azimuth is also applied to a circuit producing a signal in opposition to an electrical signal derived from a rateof-turn gyro which is applied to the rudder servomotor control channel. As shown, the control surfaces 1, 2 and 3 of an aircraft are each controlled by a servosystem comprising an amplifier 4 energizing a reversible clutch 5 coupling a continuously running motor (not shown) to operate in the appropriate sense the pilot valve of an hydraulic servomotor 6 which controls a main servomotor 7 adjusting the control surface. Negative feedbacks from the clutch and servomotors are applied through a condenser 10 to introduce an integral component of control, and the input of amplifier 4 has a low impedance as in Specification 690,982. The pilot can operate the main servomotors from control units 8. The ailerons 1 are controlled by main and trim roll potentiometers 14 and 12, a gyro horizon 13 and a directional gyro 15 and/ or a track controlling unit 16 such as a radio receiver. Manual turns are effected by banking under the control of main roll potentiometer 14, directional gyro 15 and track controlling unit 16 then being disconnected. Means not shown are incorporated to limit the angle of bank. The rudder 2 is controlled by a rudder trim potentiometer 17 and a lateral accelerometer 18 the output of which is modified in accordance with airspeed by potentiometer 19 to produce a correction for sideslip. During turns a rate-ofturn gyro 21 also controls the rudder through condenser 10 to produce a transient response to damp out yaw oscillations. The signal from the rate-of-turn gyro 21 is opposed by a signal obtained from turn producing units 14, 15, 16 through an airspeed responsive potentiometer 23 so that only when the rate of turn is not equal to that called for is a resultant signal produced. The elevators are controlled by main and trim pitch potentiometers 28 and 29, a gyro horizon 27 and an altimeter 32 or radio glide path receiver 31. Specification 690,982 is referred to.
Patent GB-977041-A (GB)
Title: Improvements relating to linearisation of hall effect multipliers
Inventor: TAYLOR ERIC WILFRED
IPC: G06G7/162
Filed: 1960-02-18
Abstract: 977,041. Electric analogue calculating. ELECTRIC & MUSICAL INDUSTRIES Ltd. Feb. 20,1961 [Feb. 18, 1960], No. 5706/ 60. Addition to 935,433. Heading G4G. [Also in Division H4] In order to counteract the effect of non-linearity in the magnetic field circuit of a Hall effect multiplier, a pilot signal is applied along with the current input to the Hall element to produce an extra product signal with the magnetic field. This product is responsive to variations in the linearity of the field, thus enabling an error signal representing undesired variations in the magnetic field to be derived. This error signal is applied to the magnetic field circuit in such a sense as to counter the effects of the variations in linearity on the normal product signal obtained from the Hall element between the normal current input and the input to the magnetic field circuit. The pilot signal frequency must be such that the product signal between the pilot and the controlling field is separable from the output proper of the multiplier, and also such that the detected output obtained after the separation may be smoothed. The pilot signal frequency might therefore be as high as 10 mc/s. The separation can be effected using filters, or by a time division technique, if the application allows.
Patent GB-1183179-A (GB)
Title: Support Rings for Mounting Electrical Circuit Elements on Rotor Shafts
IPC: H02K11/33
Filed: 1969-02-03
Abstract: 1,183,179. Mounting electrical components on electrical machines. SIEMENS A.G. 3 Feb., 1969 [3 Feb., 1968], No. 5766/69. Heading H2A. A support ring for mounting electrical circuit elements, e.g. rectifiers 7, fixedly on a rotor shaft of an electrical machine, e.g. of the brushless synchronous kind, is made up of arcuate electrically conductive, e.g. Al, members 3 which extend one after the other around the ring axis, are mutually spaced at adjacent respective ends 8, are recessed axially at 6 to accommodate the elements, are held together by an electrically insulating binding 4, e.g. a glass fibre ring impregnated with a hardenable cast resin disposed around the ring outer periphery, and have means 2 at the inner periphery to electrically insulate them from the shaft. As shown, the binding 4 holds the members on a steel hub 1, the spaces 5 between the ends 8 are filled with a hardenable cast resin 11 and accommodate in further recesses 9, capacitors 10 or resistors, and balancing weights 12 are provided.
Patent GB-918021-A (GB)
Title: Improved horseshoe
Inventor: MOSS EDGAR ALBERT
IPC: A01L1/02
Filed: 1959-02-20
Abstract: 918,021. Horseshoes. BOYLAN, E. A. Feb. 5, 1960 [Feb. 20, 1959], No. 5871/59. Class 22. A horseshoe comprises a thin metal or plastic base plate 3 provided with transverse metal wearresisting strips 4 of tungsten carbide, the strips being secured between the nail holes 2 by welding. Strip sections may be square, triangular, semi-circular or semi-elliptical.
Patent GB-695590-A (GB)
Title: Benz-(cd)-indolines and a process of making same
Filed: 1951-03-12
Abstract: The invention comprises new benz-(cd)-indolines of the following formula <FORM:0695590/IV (b)/1> in which R may be hydrogen or alkyl and X may be hydrogen, acyl or substituted acyl, obtainable by condensing 1 - alkoxy - 2 - acylaminonaphthalenes with formaldehyde and a hydrohalic acid, thus introducing a halomethyl radical in the 4-position, followed by ring-closing with a strong base, and if desired, hydrolysing to remove the acyl and alkyl radicals.  In examples, 1-methoxy-5-acetylaminonaphthalene, and the corresponding 1-isopropoxy-5-benzoylamino-, 1-ethoxy-5-carbethoxyamino-, and 1 - butoxy - 4 - dimethylureido - naphthalenes are converted into the chlormethyl derivatives with paraformaldehyde and hydrochloric acid, followed by ring-closing with caustic alkali, to give the corresponding benz-(cd)-indolines, followed by simultaneous or separate acid hydrolysis of the alkyl and acyl groups.  A further synthesis is by the reduction of the lactam of 4-alkoxy-8-aminonaphthalene-1-carboxylic acid to the corresponding 5-alkoxy-benz-(cd)-indoline, followed, if desired, by acylation and saponification of both alkyl and acyl groups.  In an example, the lactams of 4-methoxy- and 4-hydroxy-8-aminonaphthalene-1-carboxylic acids are reduced with LiNaH4 to give the corresponding benz-(cd)-indolines.
Patent GB-471126-A (GB)
Title: Improvements in sandals
IPC: A43B3/12
Filed: 1936-02-27
Abstract: 471,126. Compound sheet materials; sandals. FRANKLIN, H. W., and FRANKLIN & SONS, Ltd., J. G. Feb. 27, 1936, No. 5922. [Class 140] [Also in Group VII] A sandal is provided with a flexible sole comprising layers of cork and one or more layers of rubber, fabric or rubberized fabric. The cork layers may be separated by the layers of rubber, fabric or rubberized fabric. Preferably, each rubber or cork layer has a reinforcing layer of fine or open mesh fabric or rubberized fabric on one or both sides. The tread surface may be of rubber, in one piece or in two interfitting pieces, and preferably rubberized fabric is inserted between the rubber and cork layers. The layers may be secured together by vulcanization of a rubber adhesive, which may be self-vulcanizing. The insole of the sandal may be of cork and additional layers of cork or cork alternating with rubberized fabric may be provided at the sole and heel portions, leaving a thinner instep portion. The heel of the sandal may be formed of a single piece of compressed cork or of several cork lifts cemented together. In a typical construction, toe and instep and heel straps c, d are fastened to the sole by inserting their ends f through slits g in the upper cork layer b and cementing them between the adjacent cork and rubber layers. The proportions of cork and rubber are so adjusted that the weight of the complete sandal is not greater than and is preferably less than its buoyancy.
Patent GB-909977-A (GB)
Title: Improvements in or relating to liquid containers formed from flexible sheet material
Inventor: BONSOR DAVID VICTOR
IPC: B65D33/36
Filed: 1960-02-20
Abstract: 909,977. Valve bags. DICKINSON & CO. Ltd., JOHN. Feb. 20, 1961 [Feb. 19, 1960], No. 5956/60. Class 94(2). A , liquid container 10 comprises an envelope having front and rear faces of thin flexible material joined by welds 14, 15 so as to define a main container space and a conduit 16 extending into the main container space, and connecting it to a mouth 13, whereby when the main container is filled with liquid, the walls of the conduit are forced together to prevent liquid escape. The envelope may be gusset folded and formed from tubular sleeving, by folding a single sheet in half, or by joining two separate sheets, and is preferably made of polythene or polythene coated paper. In a modification, Fig. 3, a single sheet is doubled over and welded at 15, this weld forming both the side seam and one edge of the conduit 16.
Patent GB-179007-A (GB)
Title: A new or improved method of and improvements in or connected with apparatus for displaying light articles or substances particularly applicable for advertising
IPC: G09F13/24
Filed: 1921-02-22
Abstract: 179,007. Henderson, S. B., and Kemp, C. N. Feb. 22, 1921. Moving and changing apparatus.- Light articles, such as balls or biscuits, or powdered or flaked substances, are supported in space by an upwardly directed current of air within a restricted region to which, if ejected, they tend to return. In an example, the material is maintained in agitated suspension with the transparent tube E, which is supported on arms D, by a current of air from the electric fan C. The material, if ejected,' falls into the conical basin B and again comes under the influence of the air jet. The basin may be opaque or transparent and elastic. The box A may have transparent faces and may be illuminated. The tube E may be of any shape and may be telescopic. It may also be provided with an upper extension of substantially greater cross-section.