baber/WOPTO huggingface dataset:
Patent GB-453581-A (GB)
Title: Liquid coating compositions
IPC: C09D115/00
Filed: 1934-12-05
Abstract: According to the Specification as open to inspection under Sect. 91, a coating composition comprises a substantially unoxidized rubber derivative "having a (C5H8)x nucleus in which more carbon atoms are directly connected than in rubber."  Such derivatives include rubber isomers, rubber conversion products, and halogen-containing rubber derivatives, and they are freed from coloured impurities and water-soluble compounds by washing with water.  Coating-compositions containing these derivatives harden by evaporation of the volatile vehicle employed, and also by oxidation of the rubber derivative. Acidic and basic pigments, and other colouring and filling materials may be incorporated, and zinc oxide, antimony oxide, carbon black, silica, barytes, titanium dioxide, lead chromate, zinc chromate, lithopone, asbestine, aluminium powder, red lead, white lead, iron oxide and organic dyes are specified.  The colouring material is preferably incorporated in the rubber derivative in such an amount as to give a highly-coloured master batch, which is later blended with an uncoloured rubber derivative in making up the final coating-composition.  Specified solvents include turpentine, carbon tetrachloride, carbon bisulphide, chloroform, petroleum solvents such as gasoline, and coal tar solvents such as benzol, toluol and solvent naphtha.  Water paints may be prepared by emulsifying the rubber derivatives in water.  Other specified additions include tung oil, linseed oil, cotton-seed oil, butyl stearate, chlorinated diphenyls, ethyl abietate, paraffin wax, ester gum, gum dammar, "mineral rubber" and driers.  "Age resisters," such as hydroquinone or thio-phenyl-beta-naphthylamine may be added.  Methods of reacting rubber with chlorostannic acid and with halides of amphoteric metals, to produce unoxidized rubber derivatives, are described. According to examples: (1) a paint comprises rubber derivative, p  titanium oxide, diatomaceous silica, carbon black and mineral spirits; (2) a coating-composition comprises rubber derivative, carbon black, tung oil and solvent naphtha; (3) a metallic paint comprises rubber derivative, a solvent and aluminium powder; (4) a primer comprises rubber derivative, red lead, zinc oxide, aluminium powder and turpentine; (5) a baking enamel comprises rubber derivative, carbon black, raw tung oil, linseed oil, lead-manganese drier and mineral spirits; (6) a red baking enamel comprises rubber derivative, iron oxide, zinc chromate, boiled linseed oil, tung oil, lead-manganese drier, turpentine and mineral spirits; (7) a rapidly-drying white enamel comprises rubber derivative, titanium oxide, zinc oxide, asbestine, boiled linseed oil and turpentine; (8) a baking primer comprises rubber derivative, red iron oxide, blanc fixe, asbestine, tung oil and mineral spirits; (9) a baking primer comprises rubber derivative, red iron oxide, zinc chromate, diatomaceous silica, tung oil, linseed oil and mineral spirits.
Patent GB-1278314-A (GB)
Title: Improvements in or relating to method and apparatus for forming configurations on cylindrical surfaces
IPC: B23H1/00
Filed: 1969-07-11
Abstract: 1278314 Making dies; milling machines; electro-erosion; punches BERNAL Inc 11 July 1969 [14 Aug 1968] 34958/69 Headings B3A, B3K, B3V and B3W  A cylindrical cutting die is made by electroerosion. In the embodiment described a copy cylinder 14, mounting a master (10) (Fig. 6, not shown) of the die configuration, and an electrode cylinder 20 are mounted on a shaft 26 of a milling machine 18, which shaft is rotatable by a motor 30 for moving the cylinder 14 relative to a scanning device 32. The machine table 16 is movable by a motor 34. The pattern of the cutting edge on the cylinder 14 is sensed by the scanner 32 having a drive control means 36 which controls the motors 30, 34 and causes a grooved reproduction 12a of the pattern to be machined on the carbon electrode 20. The formed electrode 20 and a hardened die blank cylinder 45 are placed on shafts 49, 53 of an electro-erosion machine which shafts are rotated by a variable speed motor 59. The shafts 49, 53 are maintained parallel during electrical discharge machining by guide-rods 54 secured to a shaft 53 carrying member 50 and slidably engaging a shaft 49 carrying member 46. The die blank 45 has a diameter equal to the diameter of the electrode 20 minus twice the depth of the groove 12a. Cutting edges 12b are formed on the cylinder 45 by the machining operation.
Patent GB-1033816-A (GB)
Title: Improvements in or relating to electrical capacitors
Inventor: FARNSWORTH JOHN
IPC: H01G2/12
Filed: 1963-09-05
Abstract: 1,033,816. Capacitors. GENERAL ELECTRIC CO. Ltd. Sept. 4, 1964 [Sept. 5, 1963], No. 35133/63. Heading H1M. A capacitor comprises alternate metal electrode and dielectric layers with an outer insulating layer, wherein either or both the insulating layer and the dielectric comprises an absorbent layer of one or more synthetic polymers at least partly in fibrous form; the material being impregnated with insulating oil or resin. One or both of the insulating layers may comprise a web woven fabric, or a textryl paper of polyethylene terephthalate and/or polyamide fibres; cellulose paper or polystyrene film may be used for the dielectric layer, or paper for the outer layer with the remaining insulating layer formed of the foregoing material, and petroleum jelly, mineral oil, or epoxy resin may be used for impregnant, while the capacitor may be encapsulated in a mixture of epoxy resin and silica flour. Alternate layers of aluminium foil and impregnated paper tissue may be spirally wound and a length of foil wider than that used in the capacitor is inserted in the last turn with the extra width at the base end and wound three times round the roll on which is wound three turns of cellulose paper and textryl paper. A polyethylene disc is placed over the base end of the roll and the overlapping foil is folded over it; the end being dipped in liquid epoxy resin and discs of cellulose and textryl paper being applied thereto. An impregnating tube is inserted in the open end, two leads are connected to appropriate foils and the assembly is dipped in epoxy encapsulating resin mixed with silica flour and cured, after which an impregnant is introduced through the tube, which is then sealed off. The dielectric may be textryl paper, polystyrene film, or polyethylene terephthalate film, with a cellulose paper or textryl paper outer wrapping, and suitable impregnation and encapsulation.
Patent GB-1083394-A (GB)
Title: Polyurethane foams
IPC: C08G18/08
Filed: 1965-08-17
Abstract: Polyurethane foams, especially in the form of large sized slabs, are prepared by the one-shot or prepolymer method using organic polyisocyanate with polyol in presence of a blowing agent, a tertiary amine catalyst, and insufficient mineral acid to neutralize all the catalyst. Mineral acids mentioned are HCl, H3PO4, H2SO4, HNO3 and HBr. Suitable tertiary amines are trialkylamines, alkanolamines, alkylated diamines, or N-alkyl morpholines.
Patent GB-485403-A (GB)
Title: Improvements in attachments for wheels of land and road vehicles
IPC: B60C27/04
Filed: 1936-12-23
Abstract: 485,403. Vehicle wheels. HILL, W. Dec. 23, 1936, No. 35215. [Class 144 (i)] An attachment for tractors and other vehicles, of the kind described in Specification 464,159, comprises a disc or the like on which ground-engaging cleats are pivoted, a collar adjustable on the disc &c. to move the cleats into and out of operative position, and means associated with the disc &c. to lock the cleats in position. In the form shown in Figs. 3 and 4, the cranked cleats 24, which are formed or fitted with shoes 29 having grips 30, are pivoted on studs 23 projecting from a disc 10 secured to a flange 13 on the wheel-rim 14 by claw-bolts 12. The inner ends of the cleats are connected by links 31 to a ring 20 which is shiftable on a boss 19 projecting from the disc 10 to adjust the radial throw of the cleats. The latter are locked in adjusted position by a hand-operated catch 36 which is pivoted to a bracket 37 on the boss 19 and normally urged by a spring 38 to engage a toothed quadrant 40 on the ring 20. In the modification shown in Fig. 6, the inner arms 46 of the cleats 24 are formed with toothed sectors 47 to mesh with a gear 48 on the ring 20. In the further modification shown in Fig. 7, the inner arms of the cleats are fitted with pins 50 engaging radial slots 51 in the ring 20.
Patent GB-757932-A (GB)
Title: Improvements in or relating to aluminium coating and fluxes therefor
IPC: C23C2/12
Filed: 1953-12-18
Abstract: 757,932. Coating with metals; fluxes. ALUMINUM CO. OF AMERICA. Dec. 18, 1953 [Jan. 2, 1953], No. 35279/53. Class 82(2) Prior to coating with aluminium or an aluminium base alloy by dipping, ferrous metal bodies are coated with a dry, solid, chloride-free flux containing 65-85 per cent of at least one alkali metal bromide and 15-35 per cent of at least one of potassium fluoride and potassium acid fluoride. The bromide may be that of sodium, potassium or lithium and the flux may also contain up to 10 per cent of a heavy metal fluoride e.g. titanium tetrafluoride. Wire or strip may be continuously fluxed and coated by passing through an aqueous flux solution at 170‹-190‹F., allowing the flux to dry and then passing through a metal bath at 1250‹-1400‹F.
Patent GB-812287-A (GB)
Title: Improved means for indicating linear and angular measurements
IPC: G05B19/18
Filed: 1955-12-08
Abstract: 812,287. Drilling-machines; machine-tool details. ELLIS & CO. Ltd., J. W., and RUTTER, M. Dec. 7, 1956 [Dec. 8, 1955], No. 35288/55. Class 83 (3). [Also in Group XXXVIII] In a device for indicating or controlling the position of a movable part in a machine-tool, the part is coupled, as by cables, to a drum connected by gears to rotary switches which control circuits to illuminate indicator-panels and show the displacement of the part. Thus a movable part 1, Fig. 1, is connected by cables 4<SP>1</SP> to a drum 4, the cables wrapping the drum in opposite directions and the drum being axially-movable by a screw 11 to keep the cables aligned with part 1. The shaft 8, 11 of the drum is rotated by a motor 38 through gear-trains in a casing 15, the gear-trains operating rotary switches 21-25 at different speeds and the switches being connected to the respective columns of a panel 16, each column representing movements of part 1 of a different order of magnitude. As applied to a drilling- machine, vertical and horizontal drill-heads 54, 47, Fig. 3, are adjusted and fed relatively to elongated work, such as an angle-bar resting on a bed 71 and moved longitudinally by a roller-bed 66. Racks 60, 61 on the heads operate rotary-switches 64, 65 to indicate the positions of the drills on panels 77, Fig. 4, and the shaft 8 which drives the roller-bed is connected to the gearing 15 for indicating the position of the work on the panel. The motors which rotate and feed the drills, adjust the positions of the drill-heads and drive the rollertable are controlled by push-buttons 76 adjacent the panel 77, or alternatively the circuits for the indicating-panels may be controlled automatically by punched-cards or tape, or magnetic-tape. The work is gripped against an angle-bar 69 by an hydraulically-operated plunger 72, whose movement is indicated at 82 on the panel. The device may be applied to lathes, radial-arm drilling-machines, or rotary members such as the tables of milling-machines.
Patent GB-1384757-A (GB)
Title: Press mould
IPC: B29D30/06
Filed: 1972-07-28
Abstract: 1384757 Moulding tyres CONTINENTAL GUMMI-WERKE AG 28 July 1972 [4 Aug 1971] 35377/72 Heading B5A A tyre vulcanizing press mould comprises tyre sidewall mould parts 12, 13 and tread mould segments 6 radially movable by guides 4 when the upper section 1, 3 of the press is moved vertically; the segments are connected to the mould part 12 by circumferentially spaced bolts 18 slidably engaging within eyelets 21 secured to the segments. The part 12 is urged away from the section 1, 3 by spring-loaded rams 14 engaging projections 16; in the mould closed position the projections are received within apertures in the section 3. Some of the bolts 18 are bored to provide passages for the flow of heating medium to a chamber 17 of the part 12. The tread forming segments 6 have extensions 10 which slide relative the guides.
Patent GB-914300-A (GB)
Title: Process for hydrogenating benzoic acid to cyclohexane-carboxylic acid
IPC: C07C51/36
Filed: 1961-10-02
Abstract: Deactivation of a catalyst for hydrogenating benzoic acid (see Group IV(b)) is avoided or reduced by effecting the process in presence of free oxygen.  The catalysts comprise Pd, Rh, Ru, Pt, Ir, Co or Ni supported on ThO2, Al2O3 or SiO2-gel.ALSO:Cyclohexanecarboxylic acid is produced by vapour phase hydrogenation of benzoic acid at a temperature between the melting and boiling points thereof at the prevailing pressure, in presence of a catalyst comprising metallic Pd, Rh, Ru, Pt, Ir, Co or Ni; the catalyst may be supported on e.g. ThO2, Al2O3 or SiO2-gel.  It is preferred to carry out the reaction in presence of free oxygen.
Patent GB-416886-A (GB)
Title: Method of and machine for the separation of gold or other concentrate from sand or other materials
IPC: B03B5/32
Filed: 1933-12-18
Abstract: 416,886. Centrifugal machines. SCHLANK, M., 51, King William Road, North Unley, South Australia. Dec. 18, 1933, No. 35616. [Class 23.] A machine for centrifugally separating gold, or other heavy material, from sand and water and the like, comprises a series of rotating bowls 2, arranged as shown, having circular grooves 4 provided in each. The mixture to be separated descends from a chute 44 into the upper spinning bowl 2, and the heavier constituent collects in the grooves while the sand and water spills over the edge of the bowl, and passes on to the next bowl 2. The bowls are driven by square-sectioned shafts 22 through bevel gears 14, .16, and 15, 17, and clutch plates 6, 7. A bowl is declutched by means of rockarms 32, 33, either manually by a handwheel, or automatically through cam gear. To remove the concentrate from a bowl, a ball valve 52 is lifted by a rod 53 passing through the hollow shaft 8, and the concentrate is washed downwards by water from a pipe 57, to settling tanks. A second shoot 45 is lowered to byepass a bowl, when the latter has to be cleaned or emptied. Cam-gear may actuate the chute 45, the valve 52, and also the water supply through pipe 57. A thrust bearing 12 is provided. A funnel may be used to guide the mixture from a shoot 44 to the centre of a bowl.
Patent GB-494215-A (GB)
Title: An improved process for the solvent dewaxing of lubricating oils
IPC: C10G73/06
Filed: 1937-12-23
Abstract: <PICT:0494215/III/1> Mineral oils are de-waxed by chilling with a solvent consisting of an aliphatic ketone containing a normal propyl group and a total of 5 to 6 carbon atoms, used alone or in admixture with methyl n-butyl ketone or a higher aliphatic ketone.  Oil is withdrawn from a tank 1 and passes through a pipe 2 together with solvent withdrawn from a tank 5, through heat-exchangers 8, 9 to a chiller 10.  As solvent there is used a mixture of methyl or ethyl n-propyl ketone with an equal amount of methyl n-butyl ketone, which as a low solubility for wax and a high filtration rate. The oil solution and precipitated wax passes to a drum filter 12, from which the de-waxed oil flows through a pipe 16 to a tank 17 and a steam still 18.  Steam and solvent vapours pass to a condenser 20 and water is removed in a separator 21.  The wax cake on the drum 13 is washed with pre-cooled fresh solvent, the first washings being added to the oil filtrate, and the second washings flow through a pipe 27 and the heat-exchangers 8, 9 to the oil feed where they are used as de-waxing solvent.  Fresh solvent is used solely for washing the wax cake.  The washed wax is then removed from the filter by a scraper, and solvent is recovered therefrom by centrifuging or pressing in a roller mill. Specification 466,978 is referred to.
Patent GB-755205-A (GB)
Title: Improvements in or relating to fog and spray generators
IPC: A01M13/00
Filed: 1954-12-10
Abstract: 755,205. Spray-producers. TENNEY, W. L. Dec. 10, 1954 [Dec. 24, 1953], No. 35786/54. Class 69 (3). A wheeled chassis 10 supports a water tank 15 in which is mounted the combustion chamber 22 of a resonant pulse jet engine 20 into the discharge tube 23 of which the liquid to be sprayed is fed from a reservoir 16. The tube 23 is supported above the water tank and within a hood 65, and it is connected to the combustion chamber via a bent pipe 55 and a straight pipe 60, both of which pipes are immersed in the water. A tube 75 from the combustion chamber supplies pressure to the upper end of the reservoir 16 and liquid is fed therefrom through a control valve 71 and a line 70 to an outlet tube 73 secured within a T fitting 61. Heat from the engine boils the tank water and, if desired, the spray is augmented by steam therefrom. For this purpose an opening 90 is provided in the tank below an opening 66 in the hood, and during spraying steam is drawn through the hood and about the discharge tube. A perforated baffle 81 prevents water splashing from the tank. Surplus spray liquid fed to the tube 23 drains down through a discharge outlet 57 to a collecting tank 58. Fuel is fed to the engine throat 25 from a tank 31 via a filter and valve &c. and air for starting the engine is supplied by a hand pump 40. A spark plug 42 supplied by a battery and coil &c. 44 initiates combustion. Specification 641,472, [Group XII], is referred to.
Patent GB-386111-A (GB)
Title: Improvements relating to gas-filled electron discharge tubes
IPC: H01J17/56
Filed: 1931-12-29
Abstract: 386,111. Discharge apparatus. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. Dec. 29, 1931, No. 35918. Convention date, April 20. Addition to 386,063. [Class 39 (i).] In. electron - discharge tubes of the type described and claimed in the parent Specification each anode chamber is provided with a heating or heatretaining device. For this purpose a heating coil may be arranged around the anode chamber or the latter may be covered with asbestos or provided with a double wall with the intervening space e exhausted. Alternatively, as shown in Fig. 1, the anode chamber 10 is placed directly over the cathode chamber 1 and is heated thereby. The cathode comprises loosely coiled wire gauze 4 mounted in a heating coil 3a, the coil and the inner and outer surfaces of the gauze being coated with a substance providing high electron emission. The tube 6 is provided with a flared extension 17 directed towards the cathode and one of the leads of the coil 3a carries a screen 18 arranged to attract a large proportion of the ions coming from the tube 6. The tube 8 connecting the chambers 1, 7 is formed with a helical portion 14 protected by cylindrical glass sleeves 15, 16. Fig. 2 shows a modification in which the anode chamber 10 is sunk into a recess 12 in the top of the cathode chamber 1 and is covered by a heat-retaining hood 13, e.g. of glass. Radiation of heat from the cathode is reduced by a screen 19 and ignition is improved by providing the tubes 6, 9 with metal points 20, 21 within the chamber 7. The tubes 6, 9 may be used as control electrodes.
Patent GB-764017-A (GB)
Title: Capacitors
Inventor: EISLER PAUL
IPC: H01G4/255
Filed: 1954-12-13
Abstract: 764,017. Capacitors. TECHNOGRAPH PRINTED CIRCUITS, Ltd. Dec. 13, 1954, No. 36072/54. Class 37. A capacitor has its two electrodes, which form integral parts of the conductive pattern of a printed circuit in which the capacitor is incorporated spaced apart on the same side of a dielectric layer, and includes an electrically isolated conductive bridge at least part of which is on the opposite side of the dielectric layer and overlaps both the electrodes. The electrodes 10, 11 (Fig. 2) form integral parts of the conductive pattern of a printed circuit of which the dielectric layer 12 comprises the insulating base. The rigid conductive bridge 13 is disposed on the opposite side of base 12; in the case of a fixed capacitor it is fixed to the base 12, but in the case of a variable capacitor, it is movable so as to vary the area by which it overlaps the electrodes. The conductive bridge 13 may alternatively be of flexible material in which case it may be rolled on to the surface of the dielectric 12, as shown in Fig. 3, in order to vary the overlap. If the element 10, 11, 12 also be flexible, it and the flexible bridge 13 may be wound together from different directions about a common axis, to form a spiral coil, the bridge overlapping the electrodes only in the portions which are wound together. Another alternative construction is shown in Fig. 5 in which the two electrodes 10, 11 are mounted on one side of a dielectric sheet 12, an insulating backing-sheet 16A (thick compared with 10, 11, 12) being provided on the other side of the electrodes. The conductive bridge 17A is secured to the other surface of the sheet 16A, the capacity of the unwound band then being negligible. However, when the band is wound upon itself in a spiral coil the conductive layer 17A in one turn is separated from the electrodes 10, 11 in the adjacent turn by the thickness of the dielectric sheet 12 only and consequently the wound portion is effective as a capacitor, the capacity of which is variable by winding up more or less of the band. Fig. 6 illustrates another modification in which the conductive bridge takes the form of two arrays 26 and 27 of closely-spaced conductive strips each array overlapping one of the electrodes 24, 25, the strips being secured to the dielectric layer. One or more of the strips of each array may be connected together and to a similar number of the strips of the other array by a movable conductive member 28. Alternatively individual leads may be taken from each of the strips 26, 27 and the connections between the strips may then be effected at the remote ends of these leads.
Patent GB-1034794-A (GB)
Title: Method for production of shaped articles
Inventor: BULLIVANT DOROTHY MARY
IPC: C08K5/17
Filed: 1962-09-22
Abstract: The procedure of the parent Specification is modified in that the shaped rubber article is immersed in a solution of an aliphatic amine or salt thereof in a mixture of water and alcohol. The preferred alcohols are ethyl and propyl alcohol.  The solution should contain 20 to 60% by weight of alcohol.
Patent GB-1021886-A (GB)
Title: Aerosol
IPC: C09K3/30
Filed: 1962-09-25
Abstract: A pressurized, self-propellant, alcohol-free aerosol composition comprises a water-in-oil emulsion and a liquid propellant having a specific gravity less than the emulsion, wherein a portion of the propellant comprises the continuous phase of the emulsion.  The active ingredient may be an insecticide or space deodorant (examples are given) or a miticide, bactericide, or insect repellant.  The propellant may include propane, butane, iso-butane, iso-pentane, dichlorodifluoromethane, difluoroethane or tetrafluoroethane.ALSO:Insecticidal aerosol compositions contain as active ingredients mixtures of (1) pyrethrins, piperonyl butoxide and N-actyl bicycloheptene dicarboximide, (2) pyrethrins and piperonyl butoxide, and (3) allethrin and piperonyl butoxide.