baber/WOPTO huggingface dataset:
Patent GB-1279387-A (GB)
Title: Improvements in or relating to unsaturated polyester resin compositions
Inventor: WILLIAMS DAVID RALPH
IPC: C08L67/06
Filed: 1970-09-02
Abstract: 1279387 Glass fibre laminates KOPPERS CO Inc 2 Sept 1970 42067/70 Heading B5N [Also in Division C3] Laminates are prepared by impregnating glass fibre mats with an unsaturated polyester resin composition comprising an unsaturated polyester of at least one dicarboxylic acid containing alpha or beta-ethylenic unsaturation and a dihydric alcohol, an alpha betaethylenically unsaturated cross-linking agent, and a saturated polyester of at least one dicarboxylic acid and at least one dihydric alcohol and having an average molecular weight in the range of from 2000 to 10,000,000, the unsaturated polyester and the saturated polyester being soluble in the cross-linking agent and the saturated polyester being present in an amount of from 3 to 50 parts by weight based on 100 parts by weight of the unsaturated polyester, crosslinking agent and saturated polyester and curing.
Patent GB-1088166-A (GB)
Title: Graft copolymers
IPC: C08F279/02
Filed: 1964-10-16
Abstract: Graft copolymers are made in which the substrate polymers are diene rubbers and the superstrates are polymers containing hydroxyl groups. The graft copolymers are preferably made by the polymerization of monomers containing hydroxyl groups in latices of diene rubbers.  The graft copolymers possess adhesion to a variety of substrates and may be used in blends with other resinous materials in the manufacture of laminates.  The examples describe making graft polymers by polymerizing: (1-3) styrene, acrylonitrile and vinyl benzyl alcohol in polybutadiene and butadiene-divinyl-benzene and butadiene-styrene-divinylbenzene copolymer latices, (4) styrene, acrylonitrile and 2-phenyl allyl alcohol in a butadiene-styrene-divinylbenzene copolymer latex, (5) styrene, acrylonitrile and vinyl benzyl alcohol in a butadiene - styrene - vinyl benzyl alcohol copolymer latex, (6 and 8) styrene, acrylonitrile and 2-phenyl allyl alcohol in butadiene-styrene-2-phenyl allyl alcohol-divinylbenzene copolymer latices, (7) styrene, acrylonitrile and vinylbenzyl alcohol in butadiene-vinylbenzyl alcoholdivinylbenzene copolymer latex, (9) styrene and vinylbenzyl alcohol in a butadiene-styrene-divinylbenzene copolymer latex, (10) styrene and 2-phenyl allyl alcohol in a butadiene-styrene-divinylbenzene copolymer latex, (11) vinylbenzyl alcohol in a butadiene-styrene-divinylbenzene copolymer latex, (12) 2-phenyl allyl alcohol in a butadiene-divinylbenzene copolymer latex, (13) 2-hydroxymethylbutadiene in an isoprene-styrene-divinylbenzene copolymer latex, (14) styrene, acrylonitrile and vinylbenzyl alcohol in a butadiene-acrylonitriledivinylbenzene copolymer latex, (15) ethyl betahydroxyethyl fumarate and vinyl chloride in a butadiene - styrene - divinylbenzene copolymer latex, (16) methyl methacrylate and bis-(betahydroxyethyl) fumarate in a butadiene-styrene-divinylbenzene copolymer latex, (17) ethyl acrylate and beta-hydroxyethyl acrylate in a butadiene - styrene - divinylbenzene copolymer latex, (18) butene-1 and ethyl beta-hydroxyethyl fumarate in a butadiene-styrene-divinylbenzene copolymer latex, (19) butadiene and 2-phenylallyl alcohol in a butadiene-styrene-divinyl benzene copolymer latex and (20) butadiene and vinyl benzyl alcohol in a butadiene -styrene-vinylbenzyl alcohol copolymer latex.  The graft copolymers of Examples (3) and (9) are converted into dispersions in methyl ethyl ketone and the dispesions are blended with a styrene-maleic anhydride copolymer and an epoxy resin to form syrups which are used in forming laminates with glass cloth.
Patent GB-955549-A (GB)
Title: Improvements in or relating to liquid pumping systems
Inventor: THORP CHARLES JOSEPH
IPC: G05D7/06
Filed: 1960-12-09
Abstract: 955, 549. Electric correspondence control. S. SMITH & SONS (ENGLAND) Ltd. Nov.24, 1961 [Dec. 9, 1960], No. 42398/60. Heading G1N. The weight of liquid per unit time delivered from a pipe 4 is kept constant by a pumping system including a pump 3 which withdraws liquid from a reservoir 1 at a constant rate and has inlet and outlet conduits connected by a bleed channel 6 the flow through which is controlled by a second pump 12 which delivers a constant volume of liquid per stroke or revolution and the pumping rate of which is determined by the temperature of the liquid. A thermocouple or resistance bulb 8 located in reservoir 1 or in a conduit 2 senses liquid temperature and by means of a servo amplifier 9 actuates the motor 10 which drives the pump 12 and thus regulates the flow of liquid in the bleed channel. An electrical tachometer 13 generates a signal in dependence on the speed of the motor 10 this signal being fed back into the servo amplifier 9. The liquid through the channel 6 is pumped in a direction to reduce the effective output of pump 3, the speed of pump 12 being decreased with a rise in liquid temperature.
Patent GB-1155957-A (GB)
Title: Phosphoric Acid Purification Process.
Inventor: RIPP BENN
IPC: C01B25/237
Filed: 1965-10-07
Abstract: 1,155,957. Purifying phosphoric acid. FISONS FERTILIZERS Ltd. 4 Jan., 1967 [7 Oct., 1965], No. 42535/65. Heading C1A. A process for removing sulphuric acid from phosphoric acid which has been prepared by the wet process which involves concentrating by evaporation the phosphoric acid to more than 38% by weight P 2 0 5  and then treating with CaO, CaCO 3  or a calcium phosphate at 45‹ to 95‹ C. then separating the precipitate and recovering phosphoric acid substantially free from H 2 50 4 . Preferably a stoichiometric amount of CaO is used for the H 2 SO 4  present. Alkali metal hydroxide or alkali metal salt may be added to the solution to remove fluorine.
Patent GB-1089614-A (GB)
Title: Method and apparatus for intensified refininig of deformable solids
IPC: B02C2/00
Filed: 1964-10-19
Abstract: 1,089,614. Milling apparatus. D. E. MARSHALL. Oct. 19, 1964, No. 42612/64. Heading B2A. Milling apparatus, for milling and refining stiff materials, comprises a cylindrical rotor 150, Fig. 2, having axial feed grooves and a circumferential feed distributing impeller plate 208, having impeller teeth 61, which is rotatable inside a corresponding stator member 37, 48. The rotor and stator include means for coolant circulation. The apparatus comprises a frame 300 supporting a shaft 80 and the stator frame 37, feed being via a port 162, or e.g. a port 162', with material fed in small pieces to form a film or thin layer between grooves 64, Fig. 3, and the stationary rings 48. The rotor which is keyed to the shaft 80 is constructed of cups 150, 151, with an impeller plate 208 having impellers 61 clamped between them. The cup 150 comprises a section of helical grooves 64 and a cylindrical milling zone 154, and the cup 151 comprises a section of grooves 152. Coolant is supplied via tubes 85 to a running seal (not shown) to join ports 206 and circulate coolant through the inner cup 151, across the plate 208, through a port 207, through the outer cup 150 and thence to the tubes 85. Feed of material through the apparatus is effected directly by the grooves on the rotor surface. The stator rings 48 include a coolant chamber 86 which is supplied by pipes (not shown) and are centred with the rotor by adjusting screws 81. The rings may be provided with replaceable linings. Discharge from the mill is effected by a worm screw 161, which may include an extension 88 for direct feed into a second mill. Tramp material may be screened by grids provided at the input port.
Patent GB-1299640-A (GB)
Title: A saw blade
Inventor: FUNAKUBO TOSHIEI
IPC: B28D1/12
Filed: 1970-09-04
Abstract: 1299640 Abrasive tools EISHEN KK 4 Sept 1970 42616/70 Heading B3D [Also in Division C7] A saw blade, e.g. for a band saw comprises a strip 2 of carbon tool steel to one longitudinal edge of which a plurality of hard flinders 5 are brazed by means of hard solder 6. The flinders may consist of crushed material, which material comprises melted and moulded silicon dioxides or comprises moulded and sintered powdery constituents, of ceramics predominantly containing aluminium oxides, or of alloys. The alloys may be those predominantly containing tungsten carbides, or alloys of multicarbides containing major portions of tungsten carbides and minor portions of titanium and/or tantalum carbides, or alloys of carbides predominantly containing tantalum and/or vanadium carbides. In an example an alloy made by moulding and sintering a mixture consisting by weight of 92% tungsten carbide, 2% of titanium and tantalum carbides, and 6% of cabalt, each in powder form was heated to about 1100‹ C., quenched to about -70‹ C. and crushed into flinders by a hammer. A strip of tool steel containing 0À8-0À9% carbon was heated along one edge to around 600‹ C. Flux melted at 950‹ to 1000‹ C. was applied to the heated edge, and hard solder predominantly containing nickel and melted at 1300‹ C. was flowed on to the edge. The flinders were dropped at random into the molten solder. The effective width of the cutting edge formed was 1À3 to 1À7 times the thickness of the strip.
Patent GB-1087527-A (GB)
Title: A process for removing a steroid from its solution
IPC: A61K31/569
Filed: 1965-10-07
Abstract: The invention comprises a complex of 3-(3-oxo - 17b  - hydroxy - 4, 6 - androstadien - 17a -yl) propionic acid g -lactone and a phenolic compound selected from compounds of the general formula <PICT:1087527/C2/1> and 2-naphthol, in a molecular ratio of 1: 1, and a process for removing 3-(3-oxo-17b -hydroxy - 4,6 androstadien - 17a - yl) propionic acid g -lactone from its solution by contacting the steroid with a phenolic compound which is hydroquinone, resorcinol, catechol or 2-naphthol, in a medium inert to the reactants and containing a polar organic solvent, a polar organic solvent and water or a non-polar organic solvent and water, the polar organic solvent being an alkanol, alkyl alkanoate, alkanone or alkane nitrile, to form the sparingly soluble phenol-steroid molecular complex thereof and isolating and decomposing said complex. Suitable non-polar solvents are benzene, toluene, xylene, hexane, heptane, cyclohexane, dioxane, methylene chloride, chloroform, carbon tetrachloride and dichloroethane.  Suitable polar organic solvents are methanol, ethanol, 2-propanol, ethyl acetate, 2-propanone and acetonitrile.
Patent GB-928334-A (GB)
Title: Improvements in or relating to fluid-flow control valves
IPC: F16K47/00
Filed: 1961-11-29
Abstract: 928,334. Fluid-pressure brakes. BENDIX CORPORATION. Nov. 29, 1961 [Dec. 1, 1960], No. 42705/61. Class 103 (1). [Also in Group XXIX] A control valve for use in a power unit A of a servo-operated brake master cylinder, comprises a valve body having a valve seat 24, a closure member 28, a diaphragm 34 attached to the body and the closure member and a structure 66 providing frictional resistance between the closure member and the body. The structure 66 is in the form of a ring fitted into the body and provided with projections which frictionally engage the periphery of a flange 32 on the closure member 28 thereby preventing flutter of the latter; the ring may be formed integrally with the housing. In a modification, the projections may be formed on the periphery of the flange 32 and frictionally engage with the body. As shown, the valve 28 is arranged in a vacuum-operated brake servo unit, the valve being urged by a spring 50 against the seat 24. A seating face 26 formed on a valve plunger member 22 is also arranged to co-operate with the closure member 28. In the inoperative position of the unit the seating face 26 is slightly away from the closure member 28 so that atmospheric pressure acts on both sides 12, 14, of a power piston B via filter 42, port 44, seat face 26, control chamber 40, and port 48. Upon actuation of a rod 54, the seating face contacts the closure member 28 thereby moving the latter away from the seat 24 and so allows the side 12 of the piston B to communicate with a vacuum source via a chamber 38 and a pipe 46. The atmospheric pressure on the side 14 of the piston then moves the latter end so as to operate the plunger D of the hydraulic brake unit A. Specification 846,211 is referred to.
Patent GB-945620-A (GB)
Title: Improvements in knives and other hand tools and handles therefor
Inventor: WALSH ROBERT LAURIE
IPC: B26B3/02
Filed: 1961-11-29
Abstract: 945,620. Hand-tool handles. SANENWOOD PRODUCTS Ltd. Nov. 15, 1962 [Nov. 29, 1961], No. 42747/61. Heading B4K. A knife, fork, spoon or other hand tool has a sheath-like metal handle 10 with openings 14 in the wall thereof and accommodating a pair of metal or non-metallic inserts 15 between which is sandwiched at least one insert 16 holding the inserts 15 in the handle and in closing relation to the openings 14 and to the open end 13 of the handle. The inserts are retained in the handle by a pin and/or by synthetic glue. The inserts 15 are provided with exterior panels 17 to fit the openings 14.
Patent GB-1068033-A (GB)
Title: A reagent and process for the detemination of vanadium
Inventor: JUNGREIS ERVIN
IPC: G01N31/22
Filed: 1963-10-30
Abstract: The invention relates to a Schiff-base formed from anthranilic acid and selicylaldehyde having the general formula  <FORM:1068033/C2/1> The compound may be prepared by mixing a solution of anthranilic acid in ethanol and benzene with an alcoholic solution of selicylaldehyde containing a substantial excess of selicylaldehyde to the anthranilic acid diluting with benzene to a desired concentration.ALSO:Vanadium is detected and determined by a Schiff-base formed from anthranilic acid and salicylaldehyde (see Division C2).  In the detersolution containing pentavalent vanadium.  The mination of vanadium a benzene/alcohol solution of the reagent is mixed with an aqueous organic phase separated after agitation, the optical density measured at about 520 mm  and the result compared with a standard calibration curve.  Iron intereference may be masked with H3PO4.  Alternatively the reagent may be incorporated into filter paper.
Patent GB-1000653-A (GB)
Title: Polyester resin compositions and fiber-reinforced plastic articles
IPC: F23N5/10
Filed: 1961-11-30
Abstract: A fluid composition polymerizable to an infusible resin comprises a solution of isotactic polymethylmethacrylate of viscosity average molecular weight at least 1000 and an ethylenically unsaturated polyester in an addition copolymerizable monomer.  The solution may also contain a syndiotactic polymethyl methacrylate which on standing reacts with the isotactic polymer to form a gel.  Specified solvent monomers are styrene; p-methylstyrene; various acrylates and methacrylates; divinyl benzene; diallyl phthalate, succinate, adipate and fumarate; allyl glycolyl allyl succinate; triallyl phosphate and mixtures thereof.  The polyesters may be derived by condensation of an unsaturated di- or tri-carboxylic acid and a dihydric alcohol and, optionally other polycarboxylic acids, monocarboxylic acids and monohydric alcohols, several examples of each category being given. The solution generally contains an inhibitor, e.g. hydroquinone, beta-naphthol, phenylene diamine, resorcinol, catechol or an alkylated catechol.  Polymerization may be effected by benzoyl, acetyl, lauroyl or MEK peroxide, t-butyl or cumene hydroperoxide or butyl perbenzoate and an activator, e.g. an amine or polyamine or a cobalt soap. Optional ingredients of the solution specified are atactic acrylate and methacrylate polymers and copolymers, fatty acids, C12+ alcohols, lecithin, salol, dyes, pigments, fillers and wax. The solutions may be applied to mats of woven or non-woven glass, cellulose, polyester, polyamide or other natural or synthetic fibres.
Patent GB-1022462-A (GB)
Title: An instrument for measuring atmospheric turbidity
IPC: G01N21/53
Filed: 1962-11-14
Abstract: 1,022,462. Photo-electric turbidity measurement. LICENTIA PATENT-VERWALTUNGSG.m.b.H. Nov. 14, 1962 [Nov. 14, 1961], No. 43063/62. Heading G1A. An instrument for measuring atmospheric turbidity comprises two photo-electric detectors 13 and 16 in one housing and a light source 10 in another housing spaced from the first. A reference light beam passes from the source to the detector 13 through a mirror system. A second light beam of wide dispersion from source 10 is directed to pass through a region 14 of the atmosphere. Light scattered in the region 14 is directed by optical system 15 to detector 16. A rotatable grey wedge is provided in front of one of the detectors and adjusted manually or automatically to bring the light received by each to equality. The position of the wedge is then an indication of the degree of atmosphere turbidity. For calibration a body 18 of known light scattering properties is positioned in the region 14.
Patent GB-990155-A (GB)
Title: Improvements in or relating to blown thermoplastic coatings
Inventor: WEBB WALTER WESTON
IPC: D06N3/00
Filed: 1960-12-16
Abstract: 990,155. Coated sheet material. IMPERIAL CHEMICAL INDUSTRIES Ltd. Dec. 18, 1961 [Dec. 16, 1960], No. 43345/60. Heading B2E. [Also in Division B5] A continuous plastic sheet material comprising an embossed thermoplastic unblown layer 20, a thermoplastic blown layer 21 and a knitted fabric 22, is produced by forming the unblown layer as a coating of a thermoplastic composition 4 on an endless band 3 provided with an engraved pattern, heating the layer (at 6) to gel it partially, applying a second layer of a thermoplastic composition 7 containing a blowing agent on top of the first layer, heating the two layers (at 10) to gel completely the first and to gel and blow the second, superimposing a preheated knitted fabric 12 on the hot blown layer an laminating the fabric thereto (by roller 11) and subsequently stripping the sheet material 15 from the endless band. Lamination may be brought about by heat and minimal pressure only, or by the use of an adhesive which may be heat-activatable. The thermoplastic composition may comprise vinyl and vinylidene polymers and copolymers, e.g. polyvinyl chloride, and ethylene and propylene polymers. The compositions may be applied by doctor knife spreading or roller coating. The endless surface may be the surface of a band, roller or shell, e.g. of metal. Specifications 833,416 and 842,147 are referred to.
Patent GB-1063597-A (GB)
Title: Chain and toothed belt drives
IPC: F16H7/06
Filed: 1964-10-24
Abstract: 1,063,597. Chain gearing. E. TURNER. Oct. 11, 1965 [Oct. 24, 1964], No. 43449/64. Heading F2Q. [Also in Division F1] Overhead cam-shafts 1, 2 are driven by sprockets 13, 14 thereon engaging the outside of a chain 10 passing round a toothless idler 11 and driving sprocket 9 on a crank-shaft 8. The idler 11 may be cylindrical or crowned or channel-shaped in cross-section. Alternatively, a toothed belt may be employed and it may pass over two idlers, be toothed only on its outer face, and be driven by a toothed member engaging the outside of the belt. Preferably the periphery of the idler is made of neoprene.
Patent GB-1181990-A (GB)
Title: Needle Assembly for a Tufting Machine
Inventor: SHORROCK STANLEY
IPC: D05C11/16
Filed: 1967-09-02
Abstract: 1,181,990. Tufting machines. S. SHORROCK. 23 Dec., 1968 [26 Sept., 1967], No. 43875/67. Heading DIG. A needle assembly for a tufting machine comprises a hollow needle 21 and a feed tube having branches 2, 3 with a plurality of yarn entry tubes 25 through which a selected yarn enters and is cut by a cutter 18 and blown to the hollow needle where a ram 26 pushes the tuft into the needle and holds it there during the time the needle pierces the fabric. The tufts are fed in by rollers 15 and different colours and/or different lengths can be provided to the needle. Only one branch need be provided on the feed tube.
Patent GB-1074313-A (GB)
Title: Improvements in or relating to the drawing of sheets of glass
IPC: C03B18/02
Filed: 1962-11-20
Abstract: In a method of upwardly drawing flat glass, two oppositely moving and similar streams of molten glass are advanced towards each other along the surface of a molten metal bath towards the line of draw at the point where the streams merge to form a body of molten glass from which the flat glass is drawn upwardly, contact of the streams with the molten metal minimizing local temperature variations in the glass approaching the line of draw. Two streams of glass are fed down platinum lined conduits 12, 13 positioned at each end of a tunnel 5 on to opposite ends of the surface of a bath 23 of a molten metal (e.g. tin or tin alloy) the two streams merging at 3, the point of draw. The tunnel is of greater width than the width of the sheet to be drawn.  The temperature of <PICT:1074313/C1/1> the two approaching streams is made identical by controlling the temperature of the bath 23 through regulators 26 in the tank floor and by regulators 27 in the tunnel roof for effecting a heat exchange with the upper surface of the glass streams.  Thus the point of draw is stabilized and a sheet of glass 1 is drawn upwardly by conventional means into a vertical annealing lehr 10. Alternatively the sheet may initially be drawn upwardly and then bent over a roller and drawn horizontally through the annealing lehr (Colburn Process).
Patent GB-1479790-A (GB)
Title: Knitting machines
IPC: D04B15/68
Filed: 1975-10-27
Abstract: 1479790 Knitting machines WIRKMASCHlNENBAU KARL-MARX-STADT VEB 27 Oct 1975 [5 Nov 1974] 44079/75 Heading D1C The needles of a circular or flat (e.g. with circulating carriages) knitting machine have lowering butts 9 engageable by a stitch cam 10 and further butts 11 which enage the edge 15 of a cam 14 to guide needles in miss position past the stitch cam, the butts 11 being radially pivotable against spring 12 or resiliently displaceable relative to the needle shank such that those butts of needles involved in knitting are pressed inwardly by a bevelled edge 17 or 16 of the cam as the needles are lowered by stitch cam 10, the outer edge of the butts being inwardly inclined in the needlelowering direction. Needle selection may be through plates 7 and jacks 2 pivoted to the needles or by a pattern wheel acting on a third butt provided on the needles. The edges 16, 17 respectively act on needles in tucking and knitting positions.
Patent GB-1329267-A (GB)
Title: Cassette type magnetic recording and reproducing apparatus
IPC: G11B27/34
Filed: 1970-09-15
Abstract: 1329267 Tape cassette apparatus MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 15 Sept 1970 [19 Sept 1969 2 Oct 1969 31 March 1970 17 April 1970(2)] 44080/70 Heading G5R A magnetic tape cassette apparatus includes a tape counter which is reset to zero by the operation of loading or unloading a cassette: (a) removing a cassette from holder 10, Fig. 1, allow lever 7 to pivot and pull down counter reset control 4. The lever may assist cassette ejection; (b) loading a cassette closes a switch to energize a solenoid coupled to the reset control (Figs. 3, 4); (c) loading a cassette rotates a one-way acting lever to reset the counter (Figs. 5 to 8); (d) depressing eject button 213, Fig. 9, operates reset cam 211; (e) loading a cassette moves a cassette sensor (Fig. 11) to release the reset control from a zero position; (f) raising a cassette receptacle (Figs. 12, 13) resets the control.