baber/WOPTO huggingface dataset:
Patent GB-983102-A (GB)
Title: Improvements in or relating to hydraulic brakes
Inventor: DOTTO GIANNI ABRAHAM
IPC: F16D55/228
Filed: 1961-05-26
Abstract: 983,102. Disc brakes. DAYTON STEEL FOUNDRY CO. May 26, 1961, No. 19103/61. Headings F2E and F2F. In a disc brake comprising a body in which an hydraulic actuator is provided to move a pad into engagement with an axially fixed disc, the hydraulic actuator comprises primary and secondary pistons connected together such as to allow limited relative movement and operable respectively in larger and smaller diameter interconnected bores in the body, frictional drag means between the secondary piston and the body being arranged to exert a drag so related with the area of the secondary piston that on application of fluid the primary piston is moved against retraction means normally maintaining it in an inner limit position relative to the secondary piston until an outer limit position is reached after which it moves the secondary piston against the drag force, and on release of fluid the outer limit position is maintained during a portion of the release so that the pistons move back together for a distance to take up any excess travel of the secondary piston owing to distortion of the body &c. during application, after which the primary piston returns to its inner limit position in which the pad clearance is determined by the position of the secondary piston. As shown, primary piston 30 carrying pad 33 operates in a bore 31 in the body 10 which is also provided with a counterbore 41 with which secondary piston 40 engages through drag means constituted by a split ring 48 of wedgesection urged into the space between an inclined annular face 46 of the piston 40 and the bore 41 by a belleville washer 49. The retraction means is another belleville washer 60 acting between head 55 of piston 40 and snap-ring 58 secured within a recess 56 in the primary piston 30 so as to define the outer limit position of the primary piston with respect to the secondary piston. The inner limit position is determined when washer 60 is fully compressed. The body 10 comprises two sections 14, 15, each provided with an hydraulic actuator as above, the two sections being connected together by bolts 17.
Patent GB-595231-A (GB)
Title: Improved means for dispensing beer and other liquids
IPC: B67D1/14
Filed: 1945-07-25
Abstract: 595,231. Aerating and dispensing liquids. JUDKINS, W. A. July 25, 1945, No. 19106. [Class 116] [Also in Group VI] An aerating device adapted to be attached to the delivery end of a beer pump comprises a hollow part 1 with a screwthread 4 for connection to the beer pump, coupled by screwthreads 3 to a part 2 in the form of a closed hollow cylinder the base of which has exit ports 7 for the beer. The space 8 constitutes an aerating chamber into which air is drawn via the screwthreads 3 which are made a slack fit for this purpose, and a peripheral slit 9 cut in the part 2 in the thread-engagement zone. The degree of aeration is varied by rotating the part 2 relative to the part 1, increasing as the former is screwed upward. A conical member 10 secured to the part 2 co-operates with a seating 5 on the part 1 to form a seal to prevent dripping when the two parts are screwed up tight.
Patent GB-1178925-A (GB)
Title: Refrigeration Machine and method of Operation
IPC: F25B41/06
Filed: 1967-04-26
Abstract: 1,178,925. Refrigeration. CARRIER CORP. 26 April, 1967 [1 Aug., 1966], No. 19190/67. Heading F4H. In a compression-condensation refrigeration system having a condenser 7, sub-cooler 15 and evaporator 5, flow of refrigerant to the evaporator through an expansion valve 35 is controlled by a float 36 responsive to the level of liquid refrigerant collecting in the condenser. By this means full flooding of the sub-cooler is ensured. Refrigerant passes to the sub-cooler through an aperture 21 and from the sub-cooler to the valve 35 through an aperture 23.
Patent GB-679631-A (GB)
Title: Insecticidal compositions
Filed: 1949-07-21
Abstract: 679,631. Insecticidal compositions. RIPPER, W. E. Oct. 19, 1950 [July 21, 1949], No. 19268/49. Class 81 (i). An insecticidal composition comprises a known slow-acting persistent systemic insecticide such as bis (bis-dimethyl amino phosphorus) anhydride, bis-dimethyl amino fluoro phosphine oxide or bis- (mono isopropyl amino fluoro phosphine) oxide together with a known contact insecticide such as p-nitrophenyl diethyl phosphate, nicotine, hexaethyl tetraphosphate, p-nitrophenyl diethyl thiophosphate or benzene hexachloride. The composition may include a wetting agent and may be made up as solutions or emulsions.
Patent GB-766133-A (GB)
Title: Improvements in the production of plastic coatings on floors and walls
IPC: B05D7/00
Filed: 1954-07-01
Abstract: Plastic coatings on walls and floors are produced by applying to the smoothed wall or floor surface an aqueous dispersion of one or more layers of a thermoplastic polymerization product followed by one or more covering layers of a filled or unfilled solution of a polyester resin comprising mainly a linear unsaturated polyester in a polymerizable vinyl compound which contains an activator.  The thermoplastic polymerization product may be polyvinyl acetate or butadiene-styrene copolymers containing a preponderance of styrene; the polyester may include saturated as well as unsaturated esters; the polymerizable vinyl compound may be styrene or esters of vinyl or allyl alcohol, acrylic or methacrylic acid or nitrile, vinyl allyl ketones, vinyl pyridines or naphthalenes; and the activator may be a peroxide, per-acid, dryers, mixtures of peroxides and tertiary amines or benzoins, or azo-di-isobutyronitrile.  Drying may be accelerated by increase of activator or heating with hot air or infra-red. Typically a smooth cement coated floor, or a floor having a coating of stone enamel comprising white Portland cement and an aqueous dispersion of polyvinyl acetate or chloride, is given two priming coats of an aqueous dispersion of polyvinyl acetate or of a predominantly styrene butadienestyrene copolymer containing fillers. A polyester resin coating is then applied, the mixture comprising equal parts of maleic and phthalic acids with an equivalent amount of a mixture of 3 parts of ethylene glycol and 1 part diethylene glycol to which is added 30 per cent styrene monomer and 0.1 to parts of benzoyl peroxide and dimethyl aniline as activator.  To provide moisture protection on a plaster wall an initial coating of polyester resin is employed.
Patent GB-1183177-A (GB)
Title: Process and Device for the Continuous Treatment of Textile Lengths
IPC: D06B19/00
Filed: 1968-04-24
Abstract: 1,183,177. Treating textile materials. VEPA A.G. 24 April, 1968 [24 May, 1967], No. 19357/68. Heading D1L. A device for the continuous treatment of textile lengths comprises a) a driven material feed with subsequent material accumulator, b) a unit for the application of preparations e.g. a padder and/or a printing unit, c) an endless belt conveyor which extends into the treatment chamber of a heat-treatment unit and means for overfeeding the textile material onto the said conveyor, d) a heat-treatment unit in which the textile length is carried by a permeable conveyor and is penetrated by the treatment medium in an upward direction so as to remove at least some of the weight' of the material from the conveyor, optionally washing and rinsing units, also a drying unit may be included. In Fig. 1a the material 1 is passed over driven roller 4 to accumulator 5, then through rollers 6 to padder 7, followed by printing unit 8 with pressure rollers 9 to winch 12 with slats 13 to conveyor 14 into steamer 15 having a pre-chamber 18, blower 19 and wire mesh belt 16 on which the material is deposited in folds by free fall and is overfed 15-30 times. Chamber 17 has a water seal with immersion roller 21 and washing device 22 for the wire mesh belt 16.
Patent GB-1083430-A (GB)
Title: Multi-position actuator
IPC: F16H59/04
Filed: 1966-04-06
Abstract: 1,083,430. Change-speed control. CLARK EQUIPMENT CO. April 6, 1966 [April 9, 1965], No. 19423/67. Divided out of 1,083,429. Heading F2D. The subject-matter is identical with that of the parent Specification, the claims being directed to the actuator unit (240) for the ratio control valve (146), (see Specification 1,083,429)
Patent GB-834844-A (GB)
Title: Improvements in or relating to setting mechanism for the hands of clocks
Inventor: CLAY GEORGE
IPC: G04B11/00
Filed: 1957-06-20
Abstract: 834,844. Clocks SMITH & SONS (ENGLAND) Ltd., S. June 18, 1958 [June 20, 1957], No. 19494/57. Class 139 In a clock, the motion work includes an integral gear and pinion 10, 11, 12 of a resilient plastic material and frictionally mounted on the spindle 14. The pinion teeth are conically extended at 13 and the spindle 14 is splined at 16 to receive a pinion 17, 18 part 19 of which extends into a central recess 15 in the gear 10.
Patent GB-274899-A (GB)
Title: Improvements relating to radio receiving systems
IPC: H03F1/13
Filed: 1927-07-22
Abstract: 274,899. Rider, J. F. July 22, 1926, [Convention date]. Thermionic amplifiers and detectors.-In a high-frequency amplifier the coupling between the valves comprises a transformer 11 having a tuned secondary 16, 17 and a primary 12 which is associated with a resistance 13 and a capacity 14 so proportioned as to suppress self-regeneration.
Patent GB-983155-A (GB)
Title: Method of and apparatus for successively charging receivers with a granular material
IPC: B29C31/02
Filed: 1961-05-30
Abstract: 983,155. Pneumatic conveyers. COMPAGNIE DE SAINT-GOBAIN. May 30, 1961 [May 30, 1960], No. 19560/61. Heading B8A. A hopper 15 for delivering granular plastic material &c. to a mould M has a nozzle 16 which is so dimensioned that when obturated, as by the mould becoming filled, the further free fall of material is prevented by the formation of a bridging plug of material within the nozzle. Further delivery is initiated by building up a gaseous pressure within the hopper 15 by compressed air delivered through a pipe 13 under the control of a valve 14 which may be actuated automatically on closure of the mould M. Material is delivered to the hopper 15 by free fall from a supply hopper A through a valve 8 which is normally spring-urged to the open position but automatically closes under the action of air pressure during emptying of the hopper 15.
Patent GB-147629-A (GB)
Title: Improvements in prism binoculars
IPC: G02B23/18
Filed: 1920-07-08
Abstract: 147,629. Schnack, O. March 4, 1919, [Convention date]. Field' glasses. - The prisms of binoculars are adjusted from the exterior by means of grub screws b having tapering ends engaging in holes in a cross-place g fitted with a bridge f engaging the prism e. The holes in the cross piece are partly angular and partly circular, as shown in Fig. 3.
Patent GB-409931-A (GB)
Title: Clasp or clip for hair waving
IPC: A45D2/42
Filed: 1933-07-11
Abstract: 409,931. Hair-waving appliances. CAHN, B., 8, Corneliusstrasse, Frankfort-on- Main, Germany. July 11, 1933, Nos. 19593, 20041, and 20042. Convention dates, Aug. 13, 1932, Oct. 19, 1932, and Dec. 24, 1932. [Class 131.] A clasp for hair waving or setting comprises two spring-controlled jaws 3, 4 the lower edges of which are curved to conform to the shape of the head, the jaws being provided with rows of teeth 9, 9<a> which interleave when the jaws are closed, the longitudinal direction of each tooth being oblique relatively to the curved line 7 connecting the base of the teeth. The jaws 3, 4 are provided with finger grips 10, 11 and with lugs 6 pivoted on a hinge pin 5 carrying a spring 8. The jaws are provided at the bottom with outwardly bent rims 12, the tips of the teeth on one jaw engaging with and projecting slightly beyond the edge of the rim 12 on the other jaw. The jaws are thus not in contact at the base of the teeth. The clasp may be curved laterally.
Patent GB-1066086-A (GB)
Title: Process for preparing hydroxy alkyl acrylates and methacrylates
Inventor: WRIGHT HOWARD JAMES
IPC: C07C69/54
Filed: 1964-05-11
Abstract: Hydroxy alkyl acrylates and methacrylates are prepared by reacting an alkylene oxide containing from 2 to 4 carbon atoms with acrylic or methacrylic acid in the presence of anhydrous aluminium trichloride. Examples describe the production of hydroxy propyl methacrylate from propylene oxide and methacrylic acid.
Patent GB-1376424-A (GB)
Title: Credit or identity card
IPC: G03B17/50
Filed: 1973-04-25
Abstract: 1376424 Laminated credit card POLAROID CORP 25 April 1973 [1 May 1972] 19611/73 Heading B5N [Also in Division B6] A credit or identity card comprises two sheets of material laminated together, a first of the sheets carrying embossed indicia on its external surface and the second of the sheets carrying a magnetizable material, for selective magnetization or demagnetization to form magnetically encoded indicia, and being smooth in areas corresponding to the embossing on the first sheet. In particular, the card may comprise a smooth, outer transparent layer 26 of polyethylene terephthalate, vinyl acetate/vinyl chloride copolymer or cellulose acetate, triacetate or butyrate bearing a magnetic strip 24 of PVC-based ferric oxide; a photograph 28 bonded to layer 26 by means of a heat-activatable acrylic or polyester adhesive; a frame 30 of vinyl chloride/vinyl acetate copolymer for reception of the photograph; and bonded thereto by dielectric heat sealing, a sheet 34 of heat-flowable material such as pigmented vinyl chloride/vinyl acetate copolymer provided with the desired indicia by heating the sheet in contact with a female mould so that the sheet can flow into the relief of this mould while at the same time forming the laminated card. The outer surface of the embossed layer may also carry printed indicia.
Patent GB-596629-A (GB)
Title: Improvements relating to alternating electric current rectifiers of the dry surface contact type
IPC: H01L25/07
Filed: 1945-07-31
Abstract: 596,629. Asymmetrically-conducting resistances. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., SELL, R. G., and THOMPSON, L. E. July 31, 1945, No. 19614. [Class 37] Rectifier elements 1 are 'assembled on a central bolt 3 and hermetically sealed between cooling plates 2 in cells formed by two adjacent annular ridges 2a on the cooling plates, sealed by a rubber washer 14. Sealing at the ends is effected by a rubber gasket 15 and washer 13, pressure being maintained on all washers by a spring member 11 bearing on an insulating washer 12 and held in place by a nut 10. In a modified construction, the rubber washer 14 may be of suitable dimensions to fill the gap between adjacent cooling plates which are not provided in this case with annular ridges 2a. In a further modification, a single cylindrical tube with cooling fins on the outside may be employed to house the several rectifier elements.
Patent GB-1058862-A (GB)
Title: An eddy current nondestructive testing device
IPC: G01N27/90
Filed: 1965-05-10
Abstract: 1, 058, 862. Detecting flaws and dimensions electrically. UNITED STATES ATOMIC ENERGY COMMISSION. May 10, 1965 [Aug. 26, 1964], No. 19716/65. Heading G1N. Irregularities in dimension or in quality of, for example, a metal tube, produce variations in the eddy currents generated in the tube by a coil, or a pair of differentially connected coils 10, 12, Fig. 2 and Fig. 1 (not shown), which form part of a bridge circuit 14, the output voltage of which is combined respectively at 60, 62 with two reference signals mutually in quadrature and synchronized with the bridge excitation oscillator 16 and variable, in magnitude and in phase, with relation to the bridge voltage. A single reference signal is generated by feeding an output of the oscillator 16 through an amplifier 28 and a phase shifting circuit 30 to an amplifier 36, and then to a 90 phasesplitting circuit 50, 54, 56, 58. The quadrature signals so generated are controllable in phase by a potentiometer 32 and in magnitude by a potentiometer 44, and are added to the bridge output voltage in summing amplifiers 60, 62. Variations in the bridge output signal, arising from variations in the eddy currents in the material under test, are thus resolved into two quadrature components which are extracted from the amplified outputs of the summing amplifiers by means of amplitude detectors 66, and a D.C. source 68 bucks out the D.C. component arising from the reference signals. The two bridge output components are applied to the vertical and horizontal deflection plates of an oscilloscope 70, and to a two-track recorder 74. The oscilloscope display is a figure of eight pattern generated as the probe coils are moved over a deformation in the tube under test, the slope of the pattern representing the depth of the deformation, and the amplitude representing the area of the deformation. The test coil(s) may be annular and movable inside or outside the tube, or they may be flat pancake-type coils. The device may be used for testing bars and plates of metal as well as tubes.
Patent GB-628070-A (GB)
Title: Methods of making organo-siloxanes
IPC: C08G77/06
Filed: 1947-07-23
Abstract: A mixed organo-siloxane is prepared by hydrolysing a mixture of a compound of formula C6H5.Si.X.X1.X11, and of a compoun of formula (CH3)2.Si.Y.Y1, in which X, X1 and X11 and Y, Y1, respectively, are halide or ester groups which may be the same or different. Preferably X, X1 and X11 are each chlorine or ethoxy and Y, Y1 each ethoxy, and the molecular ratio of C6H5.Si.X.X1.X11 to (CH3)2.Si.Y.Y1 is not greater than 2 : 1 and not less than 1 : 2.  Hydrolysis may be effected by the dropwise addition of water, preferably dissolved in from 2 to 4 volumes of a common solvent such as alcohol, dioxane, acetic acid or acetone. The ester groups may be alkyl, alicyclic, aryl, aralkyl, alkaryl or alkenyl, specific examples of each class being given.  If the mixture contains both halides and esters the former may be converted to ethyl esters by the slow addition of dry alcohol thereto or of aqueous alcohol to the mixture diluted with dioxane. The hydrolysis products, after removal of solvent and excess water, are water-immiscible liquids of varying viscosity, soluble in benzene and toluene, and may be thermoplastic, thermosetting or thermally stable.  They contain methyl radicles and dehydrate more readily from similar products in which the methyl groups are replaced by ethyl, propyl or higher alkyl or phenyl radicles.  In examples: (1) C6H5.Si.(OC2H5)3 and (CH3)2.Si.(OC2H5)2 in the molecular ratio of 3 : 2 were cohydrolysed by water to give a thermosetting liquid; (2) C6H5.Si.Cl3 and (CH3)2.Si.(OC2H5)2 in the ratio 2 : 1, were hydrolysed by a water-alcohol mixture to give a thermoplastic resin which could be used as an optical cement. Copolymerization was shown in that the hydrolysis product of C6H5.Si.Cl3 alone was immiscible with the hydrolysis product of (CH3)2.Si.(OC2H5)2 alone; (3) the reactants of (2) in the ratio 1 : 2, were diluted with dioxane and ethyl alcohol added to convert the chloride to ester.  Water containing a small proportion of HCl and diluted with dioxane was added dropwise to cohydrolyse and produce a viscous liquid unaffected by heat at 180 DEG  C., and of interest as an electrical insulating oil.
Patent GB-516689-A (GB)
Title: Production of azo dyestuffs on the fibre and of compositions therefor
IPC: D06P3/68
Filed: 1938-07-04
Abstract: 516,689. Dyeing. IMPERIAL CHEMICAL INDUSTRIES, Ltd. July 4, 1938, No. 19807. Convention date, July 2, 1937. [Class 15 (ii)] Azo dyes are formed on cellulose fibre by coupling thereon N-acetoacetyl-3-chloro-4-ethoxyaniline with a diazotised aromatic amine of the benzene series carrying a chloro group and another substituent which may be methyl;- methoxy, nitro or chlorine but free from watersolubilizing groups such as COOH or SO,H. The diazo compound may be in the form of a diazoimino compound or anti-diazotate, development being effected by acid treatment. Compositions containing the components and alkali may also be applied. In the examples (1) cotton and rayon piece-goods are printed with a paste containing the coupling component, the diazoimino compound from diazotised p-chlor-o-anisidine and methyl glucamine, caustic soda and thickener, dried and acid steamed (greenish yellow); (2) and (3) similar to (1) using the diazoimino compound from diazotised p-chlor-o-toluidine and diethanolamine, and the anti-diazotate of 2:5-dichloroaniline.; 4-chloro-2-nitroaniline is also specified as a diazo component and sarcosine, ethyl taurine, proline and 4-sulpho-2-aminobenzoic acid as stabilizers. Specification 463,305 is referred to. The Specification as open to inspection under Sect. 91 comprises the use of any diazo component free from water-solubilizing groups. The diazo compound may be used in any stabilized form. Other components specified are 4-brom-2-aminoanisole, 3-nitro-4-aminotoluene, o-phenetidine-azo-alpha-naphthylamine, alphaamino-anthraquinone, 3-aminocarbazole, dianisidine, p-aminodiphenyl, 4:4<1>-diaminodiphenylamine, 1 - amino - 2 - methoxynaphthalene, cresidine, aniline. This subject-matter does not appear in the Specification as accepted.
Patent GB-1183514-A (GB)
Title: Improvements in or relating to the analysis of materials
Inventor: CLAYTON COLIN GEOFFREY
IPC: G01N23/223
Filed: 1967-04-28
Abstract: 1,183,514. Fluorescence analysis. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. March 21, 1968 [April 28, 1967], No.19833/67. Heading G1A. In the analysis of a mixture containing a wanted element, an interfering element and a base rock, the mixture is subjected to ionizing radiation, e.g. X-rays, and separate measurements are carried out to determine the intensities I w , I i  of the fluorescent radiation at the characteristic fluorescent energies of the wanted element and of the interfering element, respectively, and the intensity, I b , of the backscattered radiation over an energy band intermediate between, but not containing, the characteristic fluorescent energies of the wanted and interfering elements. A calibration nomogram, e.g. as in Fig.5 (not shown), is prepared using known samples by plotting I i /I b  against I w /I b , and using this the quantity of the wanted element and of the interfering element in an unknown specimen may be determined. The three measurements representing the two intensities of fluorescence and the backscattered intensity are obtained by the use of four filters and a conventional backscatter geometry analysis arrangement, utilizing a scintillation or proportional counter. For example, in the determination of copper in gypsum (hydrated calcium sulphate) or artinite (magnesium carbonate), the interfering element in which is iron, a pair of balanced filters of chromium and manganese are used to determine the iron K-line intensity, and a further pair of cobalt and nickel, to determine the copper. The backscattered intensity derived from the base rock is measured in an intermediate band not including either the iron or copper K-line by using the manganese and cobalt filters in combination. If more than one interfering element is present, further filters are necessary and a threedimensional nomogram is required to be plotted.