baber/WOPTO huggingface dataset:
Patent GB-1235303-A (GB)
Title: Thermoplastic binders for continuously produced leads for pencils, copying pencils and coloured pencils
IPC: C09D151/00
Filed: 1968-09-24
Abstract: 1,235,303. Pencil leads. FARBENFABRIKEN BAYER A.G. 24 Sept., 1968 [4 Oct., 1967], No. 45222/68. Heading B6P. [Also in Division C3] A pencil lead comprises graphite or a colouring agent and (A) 1 to 100 parts by weight of a graft polymer of (a) an ethylene-vinyl acetate copolymer, and (b) grafted-on vinyl chloride, which graft polymer may be at least partially replaced by copolymer (a); and (B) 99 to 0 parts of a polymer comprising (a) a butadiene polymer optionally containing up to 30% by weight of copolymerized styrene, acrylonitrile or isoprene or up to 70% of a C 1  to C 6 -alkyl acrylate or methacrylate or an alkyl vinyl ether and (b) a copolymer of styrene and acrylonitrile in a weight ratio of 95: 5 to 50: 50, wherein these two monomers may be at least partially replaced by their respective alkyl derivatives, or by methyl methacrylate, the styrene and acrylonitrile being polymerized either separately from the butadiene polymer, or wholly or in part in the presence thereof. Examples are given in which leads are extruded from compositions comprising (i) (A) ethylene-vinyl acetate copolymer grafted with vinyl chloride, optionally (B) polybutadiene grafted with styrene and acrylonitrile, alone or together with additional styrene - acrylonitrile copolymer, a C 15  - alkylphenol sulphonate, barium cadmium laurate, ethylene diamine bis-stearamide and graphite; (ii) (A) ethylene-vinyl acetate copolymer; (B) as in (i), benzyl octyl adipate, calcium stearate and graphite; (iii) (A) ethylene-vinyl acetate copolymer, ethylene diamine bis-stearamide dibutyl phthalate and graphite; (iv) (A), (B) and the sulphonate and laurate as in (i), cadmium sulphide selenide pigment and talc; and (v) (A) as in (i), (B) butadiene-styrene copolymer grafted with styrene and acrylonitrile, barium cadmium laurate, dibutyl phthalate, ethylene diamine bis-stearamide and graphite.
Patent GB-1001840-A (GB)
Title: Azo dyestuffs containing chromium and process for their manufacture
IPC: C09B45/16
Filed: 1963-11-19
Abstract: The invention comprises metal complexes that contain a chromium atom bound in complex union with 2 molecules of different monoazo dyes, one of which is of formula <FORM:1001840/C4-C5/1> wherein one of X, Y and Z is a hydrogen atom and each of the others is a hydrogen or halogen atom or a nitro, alkyl or alkoxy group, and the other is of formula <FORM:1001840/C4-C5/2> wherein D is the residue of a diazo compound bound to the azo bridge in a position ortho to the -(CO)n-1-OH group, A is the residue of an azo component linked ortho to an enolized or enolizable keto group or an amino or hydroxy group, n is 1 or 2 and one of the residues D and A contains an SO3H group. The complexes are prepared by reacting an equimolar proportion of one of the specified dyes with a 1 : 1-chromium complex of the other dye. The dyes may be used to colour wool, silk, leather and polyamide and polyurethane fibres in yellow green, glue and brown shades.  The preparation of the dyes is described in examples. Specification 765,355 is referred to.
Patent GB-1450086-A (GB)
Title: Pressure compensated control valve
IPC: F15B13/04
Filed: 1973-10-02
Abstract: 1450086 Valves HYDRAULIC INDUSTRIES Inc 2 Oct 1973 46021/73 Heading F2V A valve 13 for connecting service ports 62 leading to a motor 24 to supply and return lines 14, 15 has the pressure in the passage 16 regulated in accordance with the pressure differential across a portion 28 of the valve 13 by a fluid actuated valve 33 and the pressure in the port 62 receiving exhaust fluid from the motor regulated by a fluid actuated valve 59, a similar valve 59 in the service port supplying the motor being temporarily by-passed. With the valve 13 in the neutral position shown, fluid in the passage 14 enters a port 41 to displace the valve 33 against a spring 39 to connect the pump P to the return line 15. When the valve is displaced in either direction to connect one service port with passages 19, 17, 16 leading to the supply and the other service port with a return passage 26 or 27, the valve 33 begins to close to increase the pressure of the supply to the motor. If the latter tends to be driven by its load, the pressure of the exhaust fluid increases and acts through a passage 67 to move the corresponding reducing valve 59 against its spring 64 towards the closed position, fluid at the opposite end of the reducing valve being expelled into the passage 19 through a duct 70 and a further duct 75 in a check valve 18. A duct 76 in the valve 13 connects the ducts 70, 75 and the passage 19 to the return passage 26 when the valve 13 is in the neutral position. A non-return valve provides a by-pass path around each of the reducing valves so that there is an unrestricted supply of fluid to the motor despite the tendency of the supply fluid to close the corresponding reducing valve. Specification 1,376,063 is referred to.
Patent GB-460894-A (GB)
Abstract: 460,894. Mixing - apparatus. REDLER, A. Aug. 2, 1935, No. 21983. [Class 86] [Also in Group XXX] Material is conveyed in bulk around an annular trough 3 by a series of " en masse " type openwork flights 8, which may be U-shaped for example, and are secured to a wheel 10 rotated continuously or intermittently through bevel gearing 12. The material is introduced through one or more hoppers 6 having adjustable extensions 7 by which the level of the material in the trough may be adjusted. The level of the material may also be adjusted by a vane 14, Fig. 3, carried by a shaft 15, and which can be set at the desired angle by a control handle 16. A similar vane, acting in opposition to a spring or gravity, may be provided to indicate the level of the material. Outlets 4 conduct the material as required to containers for example which are to be filled ; the material being carried idly round the trough at a constant level until a demand is made. The apparatus may be employed as a mixer for different ingredients, these being introduced in turn through different hoppers up to the required level.
Patent GB-1387705-A (GB)
Title: Solid fire-extinguishing compositions
IPC: A62D1/00
Filed: 1972-10-06
Abstract: 1387705 Powder fire extinguishants IMPERIAL CHEMICAL INDUSTRIES Ltd 5 Sept 1973 [6 Oct 1972] 46136/72 Heading ASA A powder fire-extinguishant comprises (a) "carbamic powder" containing a major proportion by wt. of the compound KC 2 N 2 H 3 O 3 , at least 90% by wt. of the carbamic powder being of 0.1-100Á particle size, and (b) non- hygroscopic powder "B" of greater bulk density and median particle size than (a), at least 90% by wt. thereof being 50-500Á in particle size, and the amount of powder "B" being 5-50% by wt. of the total (a)+(b). Powder "B" may be inert or an active extinguishant but is preferably chemically inert to (a), i.e. is non- acidic, "B" may therefore be a salt, filler, mineral ore, or fire-resistant organic compound, e.g. a polymer. Examples of "B" are silicas, silicates, silico aluminates, calcium or barium sulphates, phosphates, fluorides or carbonates, transition metal oxides or hydroxides, polyvinyl chloride and polyvinylidene chloride, particularly alumina, silica, sand, limestone, kieselguhr, gypsum, fluorspar, zircon sand, brick dust and perlite, examples of active extinguishants "B" being potassium chloride, sulphate and/or bicarbonate. To prepare the composition normal carbamic powder may be (i) sieved, and the smaller particles selected, or (ii) ground until at least 90% has the desired particle size range. Alternatively, spray- or freeze-drying may be used to obtain the required particle size without grinding. Powder "B" is then intimately mixed therewith. In another alternative powder "B" is incorporated in the car-. bamic powder reactant mixture, the product after reaction being milled to the desired size; this method is appropriate to powders "B" which are unaffected by the reaction conditions and minimally affected by milling, e.g. silica, fluorspar, gypsum or zirconia.
Patent GB-1209989-A (GB)
Title: Improvements in processes and apparatus for blow-moulding hollow articles
Inventor: FISCHER STEFAN
IPC: B29C49/50
Filed: 1968-09-30
Abstract: 1,209,989. Blow-moulding; flash removal. S. FISCHER and R. FISCHER. 30 Sept., 1968 [3 Oct., 1967], No. 46282/68. Heading B5A. In a blow-moulding process, an excess portion of the product is removed while still in the blow-mould by means operative from inside the article. As shown, the mould 11 has a conical opening 12 which engages mouthpiece 14 of a blowing head and edges 111 against which the excess material is severed from the article. A spindle 20 has an arm 18 pivoted thereto at 19 carrying cutting roller 17 and is vertically reciprocable to introduce the arm 18 and roller 17 into the hollow article. The roller 17 is swung upwardly to squeeze the article against edge 111 by contact of shoulder 181 of arm 18 against shoulder 141 of mouthpiece 14 or by the centrifugal force caused by the rotation of the spindle 20.
Patent GB-1534408-A (GB)
Title: Sodium sulphur batteries comprising a plurality of separate cells within a container
IPC: H01M10/39
Filed: 1976-11-08
Abstract: 1534408 Na-S batteries CHLORIDE SILENT POWER Ltd 26 Oct 1977 [8 Nov 1976] 46471/76 Heading H1B Na-S cells are surrounded by foamed carbonaceous material, e.g. carbonized polyurethane foam of heated intumescent paint.
Patent GB-1319335-A (GB)
Title: Cassette changers
IPC: G11B15/68
Filed: 1970-10-01
Abstract: 1319335 Cassette changers AMPEX CORP 1 Oct 1970 [10 Nov 1969] 46749/70 Heading G5R The Specification is directed to the repeat mechanism in the cassette changer described in Specification 1,319,340, whereby operation of a manual control displaces a pawl normally stepping a magazine to the next cassette position so that when a change-cycle mechanism operates the same cassette is transferred between the magazine and record/playback unit until the control is reset.
Patent GB-1033056-A (GB)
Title: Clip for use in the construction of ceilings
IPC: E04B2/58
Filed: 1962-12-13
Abstract: 1,033,056. Suspended wall or ceiling panels; clips. F. FRUH. Dec. 13, 1962 [Dec. 13, 1961], No. 47054/62. Headings E1V and E2B. Clips for supporting wall or ceiling panels from framing members each comprise a flat base portion 1 with upper, staggered, securing lugs 4 and 5, with a space between them sufficient for the clip to be pushed up until the flat portion lies against the bottom of the framing member, and then rotated into position, and lower, outwardly facing tongues 22 which support the ceiling panels either from underneath, as shown, or by projecting into the edges of said panels (Figs. 5, 6, not shown). The framing members may be T-sectioned, as shown, top hat sectioned (Fig. 4, not shown), or cylindrical (Fig. 7, not shown), and may be suspended from the structural ceiling by wires passing through holes 3 herein (Fig. 2, not shown), or be attached to walls by nails passing through holes 3<SP>1</SP> (Fig. 4, not shown). The panel edge grooves may be pre-formed (Fig. 6, not shown), with strips 15 of P.V.C. used to cover the joints, or may be formed by pressing the tongues 22 into the panels. The panels may be of various specified materials. The tongues may be designed to grip two panel edges extending at right angles to each other, (Fig. 11, not shown).
Patent GB-471879-A (GB)
Abstract: 471,879. Heat storing apparatus. PETERSILIE, F. Dec. 10, 1935, No. 34271. Void. Convention date, Dec. 10, 1934. [Class 64 (ii)] Heat from a heated-storage mass 7 is absorbed by hollow bodies 4a ... 4e which are so disposed that they enclose a space which can be filled by the storage mass. The hollow bodies contain water and are connected to headers 2a, 3a which are connected to radiators 1, the circuit including a pump 5. The heat storage mass 7 is mounted on an insulating base 8, and may contain a channel 11 for a gas burner or electric heater. The mass is enclosed by insulating walls 15 and is mounted to run on rails 17. Rack-and-pinion mechanism is provided by which the mass 7 may be moved into the space enclosed by the hollow bodies 4a ... 4e, when it is 'desired to heat the latter. The apparatus is enclosed in a double-walled chamber 19 containing a vapour or gas. The hot gases pass through conduits 21 to preheat the hollow bodies, and are discharged through a flue 22. The temperature of the heated water may be regulated by varying the extent to which the mass 7 is moved, and this regulation may be automatic. The storage mass may comprise a mixture of graphite, kaolin, chamotte, a binding clay and water, and it may be coated with a heat-resisting ceramic layer or with nickel, copper or chromium. In a modification, Fig. 2 (not shown), the storage mass is moved vertically into or out of heat transfer relation with an annular water-containing vessel, and such movement may be automatically effected. The electric motor effecting the movement may be controlled by a switch which is coupled with the tap for the cold water supply so that the storage mass is placed in heat-exchange relationship with the water container when the tap is turned on.
Patent GB-1248563-A (GB)
Title: Electrical flowmeters
Inventor: BURTON GEORGE EDWARD
IPC: G01F1/684
Filed: 1967-10-19
Abstract: 1, 248, 563. Measuring fluid-flow electrically. PERKIN-ELMER Ltd. Oct. 15, 1968 [Oct. 19, 1967], No. 47611/67. Heading G1N. A fluid-flowmeter includes; a thin-walled, tubular, metal duct 1 which is maintained at a temperature above ambient by means of heating coils 3-3A and 5-5A closely wound about it, a brass heat sink 2 which maintains the two ends of the duct at a constant temperature and temperaturesensing coils 4-4A and 6-6A wound bifilar with heating coils 3 and 5 respectively. In the absence of flow the temperature gradient along the duct is symmetrical about the mid-point but a flow of fluid causes downstream heat transfer which renders the gradient asymmetric. The heating and sensing coils may form the four resistance arms of a bridge circuit when the gradient asymmetric. The heating and sensing coils may form the four resistance arms of a bridge circuit when the unbalance voltage may be calibrated in terms of fluid-flow. In Fig. 2 (not shown) the duct is arcuate. In Fig. 4 (not shown) two similar flowmeters are mounted in a common heat sink (12-14) for use with a twin-column gas chromatograph. The heating and sensing functions may be discharged by a single centre-topped coil or heating may be achieved by passing a current through a duct wall. Another embodiment uses conductive layers instead of coils. The coils or layers are insulated from each other and the duct by oxides of beryllium, silicon or aluminium. The heat sink temperature may be regulated by an automatic control system. An alternative form of the embodiment of Fig. 1 has an electrically insulating layer between an end of a duct and the heat sink.
Patent GB-1356337-A (GB)
Title: Process for the continuous manufacture of 1,1,6,6-tetraisopropyl- 2,5-diaza-hexadiene-1,5
IPC: C07D241/06
Filed: 1971-10-14
Abstract: 1356337 1,1,6,6 - Tetra isopropyl-2,5-diazahexadiene-1,5 CHEMISCHE WERKE HULS AG 14 Oct 1971 [15 Oct 1970] 47780/71 Heading C2C The title compound is continuously produced by reacting diisopropyl ketone with ethylene diamine in a reaction zone in the presence of an acid catalyst at 130-270‹ C. with azeotropic removal of the water of reaction, the concentration of the product in the reaction zone being kept below 60% of the theoretically possible yield by removing product from the reaction zone.
Patent GB-1300981-A (GB)
Title: Process for preparing b-stage resin compositions
IPC: C08G59/50
Filed: 1970-10-08
Abstract: 1300981 Impregnated glass-cloth laminates DAINIPPON INK & CHEMICALS Inc 8 Oct 1970 [8 Oct 1969 18 Oct 1969] 48027/70 Heading B5N [Also in Division C3] Glass-cloth laminates use as adhesive an organic solvent solution of a solid B-stage resin composition (m.p. # 50‹ C.) prepared by reacting a 2,3-epoxybutyl ether epoxy resin (I) with one or more aliphatic, alicyclic, aralkylene or heterocyclic polyamines at > 60‹ C. The polyamine is present in an amount sufficient to cure the resin but reaction is stopped before the cure has gone to completion. (I) may be prepared by reacting a polyhydric phenol or alcohol with 1,2-epoxy-3-chloro-butane or -isobutane or 2,3-epoxy-1-chlorobutane in the presence of alkali. The amine may be present so as to provide 0À8 to 1À2 active hydrogen atoms per epoxy group of (I). Examples relate to the preparation of 6-ply laminates by heating for 2 mins. at 173Œ4‹ C./15 kg./cm.<SP>2</SP>.
Patent GB-1079770-A (GB)
Title: Improvements in lidded containers
Inventor: CLAYTON ALBERT ERIC
IPC: B65D43/02
Filed: 1964-11-26
Abstract: 1,079,770. Boxes &c. COSMIC CRAYON CO. Ltd. Nov. 26, 1965 [Nov. 26, 1964], No. 48063/64. Heading B8P. A container having a hinged or separate lid is provided with a projection (10), Figs. 1, forming a fulcrum on the rim of the container body, so that, when downward pressure is applied to the lid on one side of the fulcrum, the lid is raised on the other side. The side wall of the container has an outward projection (9) over which an inward bead on the rim of the lid engages when the lid is closed. Two portions of an inward bead (8) on the body rim may be displaced to form hinges. Where the container is of rectangular cross-section, fulcrum points may be provided on each side at the same or different distances from the rear edge. The container may be of metal or non- metal.
Patent GB-1434199-A (GB)
Title: Selective electrolytic dissolution of predetermined metals
IPC: C25F5/00
Filed: 1972-10-19
Abstract: 1434199 Determining coating weight by dissolutions WILKINSON SWORD Ltd 1 Oct 1973 [19 Oct 1972] 48167/72 Heading GIN [Also in Division C7] The coating weight or surface concentration of a metal, or the porosity of a metallic or non-  metallic coating on a metal is measured by the following electrolytic process, using the sample as first electrode. A predetermined metal present with at least one other metal in a first electrolytic cell electrode is selectively electrolytically dissolved using a predetermined electrolyte together with one, only, counter-electrode and observing the following conditions; a constant p.d. (relative to a calomal electrode) between the electrodes; the total electrical energy passing in response to the p.d. is measured over a time at least sufficient for complete dissolution of the predetermined metal; the pH, applied p.d. and material of the counterelectrode are selected to hold the first electrode at a potential (relative to a calomal electrode) which lies in those areas of the Pourbaix diagrams for the two said metals where the predetermined metal is dissolved and the other metal remains passive; and the area of the counter-electrode is sufficiently large as to prevent it entering the limiting current region during use. The energy measurement may involve a coulometer connected via either a preset timer or an automatic current-responsive trigger which senses changes in cell current due to completion of metal dissolution. Details are given for removing a Cr coating from 13% Cr stainless steel; other combinations are Cr on Fe or Ni and Zn or Sn on Fe. The coulometer may be calibrated directly to read the coating weight or porosity. A counter-electrode of Pt, stainless steel or Al is useful. The electrolyte may be 1À17N N a2 CO 3  containing 6À7 vol % saturated NaHCO 3  and at pH 11 or 10 vol % KOH at pH 13, and may contain an anodically inert electro-reducible compound e.g. K 3 Fe(CN) 6  or KBrO 4  to increase the dissolution rate.
Patent GB-1369428-A (GB)
Title: Vehicle air conditioning unit
IPC: B60H1/00
Filed: 1971-10-11
Abstract: 1369428 Ventilating vehicles PRESSED STEEL FISHER Ltd 11 Oct 1971 [10 Oct 1970] 48265/70 Heading F4V A vehicle air conditioning unit comprises an evaporator matrix 16 having an air outlet face formed by two mutually inclined portions, the lower portion being substantially vertical and the upper portion inclined at 30 degrees to the horizontal. A heater matrix 17 is mounted down stream of the evaporator 16 with its air inlet face adjacent the upper portion of the outlet face of the evaporator 16.
Patent GB-1108161-A (GB)
Title: Apparatus for heating glass sheets
IPC: C03B29/12
Filed: 1964-11-27
Abstract: An apparatus for heating individual glass sheets 30 comprises a bed 22 (Fig. 1, not shown) having gas emitting outlets and means, for supplying heated gases to the outlets at a sufficient rate to support said glass sheets 30 over the outlets, the material for said bed 22 having a low heat capacity and low heat conductivity, and/or low coefficient of thermal expansion and high thermal shock resistance. The material is preferably fused quartz, but in any case should have a heat capacity and heat conductivity less than half that of steel. Its heat conductivity should be 4.0 BTU/hr./ft2 DEG F./in. and its coefficient of thermal expansion less than 1 x 10-6/ DEG C.  The bed 22 is composed of a series of blocks aligned longitudinally of the bed and is so designed that the bed is flat for up to about 2/3 of the length of a section 24 of a bending and tempering apparatus. The bed is then caused to change its transverse curvature along its upper surface, the rate of change of curvature being first low, then high, then low again until it reaches the final desired curvature, the whole following approximately a sine curve.  The actual chord length x4, x5 (Fig. 6, not shown) across each block for any curvature remains the same, only the radius of curvature r4, r5 and the height h4, h5 fro the longitudinal axis at the highest point to the chord changing.  The bed is supported upon posts 132, 133 (Fig. 3, not shown) which extend through insulated walls of a furnace structure whereby the furnace enclosure is supported independently of the bed. The bed 22 extends from a loading station 21 through a heating and bending zone 24 into a tempering zone 25 between blast heads 23, andis tilted at about 12 degrees to the horizontal.
Patent GB-1530260-A (GB)
Title: Oil fuel burners
IPC: F23D11/10
Filed: 1976-02-05
Abstract: 1530260 Liquid fuel burners CENTRAL ELECTRICITY GENERATING BOARD 5 Feb 1976 [14 Nov 1974] 49349/74 Heading F4T  A burner comprises a distributor 11 producing a thin conical film or spray of oil 12, a duct 18 arranged to direct a main combustion air supply into the oil film or spray, and auxiliary means arranged to inject air or recirculated flue gas at a higher velocity than the main air flow into an annular region in front of the distributor to atmoize the film or spray and to promote recirculation (as at 20) within the conical fuel path. The atomizing air is supplied through an annular passage 13 and either an annular nozzle 15 or a plurality of angularly spaced nozzles 16 which may produce either divergent or parallel air flow; the nozzles 16 may be shaped to swirl the air. The auxiliary air flow may be about 5% of the required combustion air, and may be controlled independently of the main air flow.
Patent GB-1275777-A (GB)
Title: Process for producing synthetic zeolites
Inventor: SERSALE RICCARDO
IPC: C01B39/02
Filed: 1969-10-09
Abstract: 1275777 Zeolites SNAM PROGETTI SpA 9 Oct 1969 [18 Oct 1968] 49722/69 Heading C1A A synthetic zeolite is prepared by treating finely divided natural or synthetic alumina silicate glass which is amorphous and which is not melted as a preliminary step, with an aqueous alkaline hydroxide solution at a temperature greater than room temperature and forming the desired zeolite as a precipitate. Preferably the aqueous hydroxide is sodium hydroxide which may be from 2N to 3N. The glass may be a natural glass of the rhyolitic type and may be Lipari pumice. The finely divided glass may be such as to pass through a screen of 270 to 325 U.S. mesh. The temperature used may range from 50‹ to 150‹ C. and 0À1 to 10% by weight of glass based on the weight of the hydroxide solution may be used. The mixture may be heated for up to 60 hours. The resulting zeolite may be faujasite. The use of a synthetic glass of composition 3Na 2 O.Al 2 O 3 .4SiO 2  is disclosed and claimed.