baber/WOPTO huggingface dataset:
Patent GB-1364488-A (GB)
Title: Process for covering a fibrous web with a polymeric coating
IPC: D04H1/587
Filed: 1971-07-07
Abstract: 1364488 Non-woven fabrics BAYER AG 7 July 1971 [11 July 1970] 31826/71 Heading D1R [Also in Division B5] A process for covering a fibrous web with a polymeric coating comprises the steps of:- (a) applying to a temporary support a layer of a reaction mixture which comprises (1) at least one polyisocyanate and (2) at least one compound containing active hydrogen atoms and which will undergo a polyaddition reaction with the polyisocyanate to form a microporous polyurethane and/or polyurea layer; (b) applying to the layer before the polyaddition reaction is complete, a fibrous web, and (c) removing the fibrous web with the adhering polymeric layer from the temporary support. The polyurethane and/or polyurea may be produced in the presence of a non-solvent for the product by a single-stage process or a twostage process, the second stage of the twostage process being effected in the presence of a chain lengthening agent. Many suitable reactants for forming the layer are specified. The temporary support may be a separating paper, a glass plate, a steel plate or a conveyor belt and may carry a finish to be applied to the layer or be embossed. The fibrous web may be a woven or knitted fabric, natural leather e.g. split leather, grain leather or suede or a fibre fleece which may after application to the layer but before step (c) be impregnated with 10 to 98% by weight (based on the fleece) of a polymeric binder and the binder coagulated. The fleece may be made from polyester, polyamide, polyacrylonitrile, polyvinyl chloride, polyvinyl acetate, polyvinyl alcohol, cotton, staple rayon, collagen, regenerated cellulose or polyurethane fibres or mixtures thereof. The binding agent may be a copolymer of butadiene with styrene, acrylonitrile and/or acrylic or methacrylic acid, polychloroprene, an acrylic or methacrylic acid ester copolymer or a polyurethane. The finish may be a polyurethane latex or a polyacrylonitrile. In the drawing, a reaction mixture is applied to a temporary support from a mixing gear 2 to form a polyurethane layer 5 to which is applied a non- bonded fibre fleece 3, a polymeric binder from mixing gear 6 being introduced into the fleece by roller 7, the product passed under a heating means 8 prior to removal from the support 1 and drying in heating chamber 9. The apparatus may also comprise a roller 10 for applying a leather finish to the temporary support.
Patent GB-1072084-A (GB)
Title: Gyromagnetic resonance apparatus
IPC: G01R33/389
Filed: 1965-07-26
Abstract: 1,072,084. Gyromagnetic resonance apparatus. VARIAN ASSOCIATES. July 26, 1965 [Aug. 17, 1964], No. 31840/65. Heading G1N. In a double channel N.M.R. spectrometer comprising a control sample 24 and a sample 18 to be analyzed and including a recorder 44 in which a pen is driven in a given direction, a linear D. C. sweep signal is applied through a pair of Helmholtz coils 46 to the sample 24 in dependence on the position of the recorder pen. As shown, both samples are in a polarizing field of an electromagnet 26. A 60 Mc/s transmitter energizes both sets of r.f. coils 16 and 22. The resonance pick-up from sample 18 is detected conventionally and recorded. R.f. coil 22 also serves as the pick-up coil for the control sample and the control signal is used to provide conventional field-frequency stabilization. If stabilization to the first side-band is desired for spin decoupling, phase shifter 38 is set for the dispersion mode. The absorption mode may be used. The probe assembly is described with reference to Figs. 2 to 5 (not shown). The sample to be analyzed is mounted in a non-magnetic aluminium housing (58) within a vertical holder engaged with a spinner (62). The control sample is mounted within a horizontal brass (coarse, conductive) tuning paddle (64) and, to minimise interaction, is positioned at a null of the 2 kc/s a.f. field which is supplied to sample (18) through modulation coils (30), the a.f. required for the stabilization being fed to the control sample through the D.C. sweep coils (46) which are mounted within the tuning paddle (64) and have no effect on the analyzed sample. A rexolite (coarse, resistive) tuning paddle (66) and fine tuning paddles (68a, 68b) are provided. P. T. F. E. blocks (70) are urged against the screw threaded portions of the tuning paddles (64, 66) to prevent backlash.
Patent GB-160539-A (GB)
Title: Improvements in connection with photographic backgrounds, reflectors and diffusers
IPC: G03B15/06
Filed: 1919-12-20
Abstract: 160,539. Greenwood, J. H. Dec. 20, 1919. Studio accessories. - Back-ground apparatus comprises several backgrounds carried by rollers a, Figs. 1 and 2, which are mounted on a rotating holder a<2> and normally prevented from unrolling by springs a<5>, Fig. 4. The holder a<2> is rotated by bevel-gearing from the handle f<6> through a gear-wheel a<10> and pinion wheel 6 on a counter shaft E. When the required background is brought into position in alignment with the countershaft E, the wheel e can be moved along the countershaft by a depending handle e<5> and crank arm e<4>, disengaged from the gear a<10> and engaged with the projecting end a' of the selected roller, and the background unrolled from the same handle f<6>. The ends of the rollers a may alternatively carry bevel-gears, and a chain or pulley gearing substituted for the bevel-gearing, provision being made for the countershaft E to engage recesses in the holder a<2>. Reflecting or diffusing screens B, C on spring rollers b are mounted between a frame b<10> and a bracket b<3> secured to the background frame D. Provision is made for a vertical and angular adjustment of the reflector or diffusing-screen.
Patent GB-874242-A (GB)
Title: New and useful resinous organosilicon compositions
Inventor: STUART RONALD SANGSTER
IPC: C08G77/445
Filed: 1958-10-08
Abstract: A film-forming composition is made by reacting together an organosiloxane resin having from 1,2-1,6 organic radicals per Si atom, an average molecular weight not more than 3,000, and at least 3% by weight of Si-bonded OH groups, and an alkyd resin by heating at a temperature within the range of 150 DEG -200 DEG C. in the presence of an oxygenated organic solvent of boiling point from 150 DEG -200 DEG C. until a homogeneous product is obtained, the siloxane being present in amount from 5%-95% by weight of the total solids and the solvent being present in amount from 5%-100% by weight of the total resin content.  The siloxane may contain alkyl, alkenyl, aryl or alkaryl radicals.  Solvents specified are ethyleneglycol diacetate, methylcyclohexanone, diethyl carbitol, 2-ethoxyethyl acetate and 2-butoxyethylacetate.  The solvents in which the resins are normally supplied may be removed before heating together, or may be removed before or after adding the oxygenated solvent.  The time of heating required to produce homogeneity may be reduced by adding a catalyst, e.g. the octoate or naphthenate of Fe or Zn.  The reaction product may be cured by heating to 200 DEG -250 DEG C. with or without curing agents.  In a typical Example (1), an alkyd resin, obtained from glycerol, ethylene glycol and phthalic anhydride, a solution in n-butyl acetate-n-butanol mixture of a methylphenylpolysiloxane resin of the required molecular weight and Si-OH content, and iron octoate, were heated with stirring to 180 DEG C., during which most of the solvent distilled off.  2-ethoxyethyl acetate was added and the heating continued under reflux, the water formed being distilled off. The reaction product was then diluted with xylene and cyclohexanone and filtered through diatomaceous earth to give a clear, straw-coloured solution.  Uses: for surface coating and electrical insulation.
Patent GB-488025-A (GB)
Title: Improvements in and relating to the softening of water
IPC: C02F5/08
Filed: 1936-11-25
Abstract: Monothiotetraphosphate, for use in softening water, may be prepared by heating a mixture of a metaphosphate and a sulphide of a metal; trithiotetraphosphate by heating a mixture of phosphorus pentoxide and a sulphide of a metal.  Other thiotetraphosphates suitable for the purpose may be made by fusing tetraphosphates of alkali metals or ammonium with stoichiometric amounts of sulphur or phosphorus pentasulphide.  Specification 476,455 is referred to.  Reference has been directed by the Comptroller to U.S.A. Specifications 2,025,503 and 2,033,913.ALSO:Water is softened by the addition of an alkaline metal thiotetraphosphate or other soluble thiotetraphosphate.  The treatment  may take place in the presence of a soluble soap. Monothiotetraphosphate may be prepared by heating a mixture of a metaphosphate and a sulphide of a metal and trithiotetraphosphate by heating a mixture of phosphorus pentoxide and a sulphide of a metal. Other thiotetraphosphates suitable for the purpose may be made by fusing tetraphosphates of alkali metals or ammonium with stoichiometric amounts of sulphur or phosphorus pentasulphide. British Specification 476,455, [Group III], is referred to. Reference has been directed by the Comptroller to U.S.A. Specifications 2,025,503 and 2,033,913.
Patent GB-429030-A (GB)
Title: Improvements in electric discharge lamps
IPC: H01J61/96
Filed: 1933-11-20
Abstract: 429,030. Discharge lamps. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Assignees of Patent-Treuhand-Ges. f³r Elektrische Gl³hlampen; 11, Ehrenbergstrasse, Berlin) Nov. 20, 1933, No. 32328. Convention date, Nov. 19, 1932. [Class 39 (i)] [See also Group XI] A headlight adapted to be carried by a vehicle comprises a discharge lamp 1 in which the discharge passes through the focus 27 of a projector 26 as a shunt across a loop-shaped incandescent filament 6 the ends 7, 8 of which are disposed symmetrically on either side of the common axis of the lamp and of the projector and in a plane passing through the focus and are coated with, or surround bodies of, material of low work function to form the electrodes. The bodies may consist of sintered mixtures of refractory metals and alkaline earths. The leading-in wires 3, 4 of the filament are secured together by glass beads 5, 18 and are welded at 16 to leading-in wires 14, 15 of a cylindrical vessel 10 which is provided with a cap 12 and surrounds, and supports by means of an annular spring 19, the spherical bulb 1. The cap 12 fits in a bayonet holder 22 which is held in the parabolic projector by a sleeve 25. The filling consists of rare gas and sodium and the bulb 1 is formed of borosilicate glass.
Patent GB-1482595-A (GB)
Title: Symmetrical electrochromic cell
IPC: G02F1/1524
Filed: 1974-07-22
Abstract: 1482595 Controlling light OPTEL CORP 22 July 1974 [30 July 1973] 32373/74 Heading G2F  In an electrochromic device, an opaque ion permeable layer is sandwiched between two layers of electrochromic material each having an electrode on the other face, the electrochromic material is of the type which is reversibly switched between colourless and coloured states on application of an electric current of the appropriate polarity, and at least one of the electrochromic layers is initially in its coloured state, i.e. prior to the first application of a voltage to the electrodes of the assembled device. As particularly described the electrochromic layer is WO 3 , and the coloured (reduced) layer may be made electrolytically, chemically or by U-V radiation during construction of the device, or by subsequent U-V radiation. Preferably only one layer is coloured. When a current flows between the electrode, one layer is bleached as the other becomes coloured. The central layer is opaque to present simultaneous observation of both layers (although both may be used for display purposes) and may be an electrolyte such as sulphuric acid or a gel thereof, to which an opaque material such as titanium dioxide is added, or it may be a solid electrolyte layer. At the interfaces between the electrochromic layers and the ion permeable layer, a catalyst may be provided for increasing the ion flow-rate across the layers. One electrode may be segmented.
Patent GB-1534085-A (GB)
Title: Oxidation of waste water containing sulphide sulphide and/or thiosulphate
IPC: C02F11/08
Filed: 1976-08-04
Abstract: In order to achieve the oxidation of sulphide-, sulphite- and/or thiosulphate-containing waste waters to the sulphate stage, in place of the highly undesirable SO2, at most elemental sulphur being produced as bi-product, using oxygen-containing gases, the waste waters, if they are sulphide-containing, are first treated in an alkaline environment with industrially pure oxygen up to conversion of the sulphide into thiosulphate. The pH is then adjusted to 0 to 5 or, for waste waters which only contain sulphite, to 0 to 8, and the treatment with industrially pure oxygen is repeated or begun and continued up to complete formation of sulphate, where catalysts can be co-used. In the case of sulphide- and/or thiosulphate-containing waste waters, sulphur precipitates in this stage.
Patent GB-485765-A (GB)
Title: Improvements in or relating to canopies for stoves, boilers and the like
IPC: F24C15/20
Filed: 1936-11-27
Abstract: 485,765. Canopies for stoves, boilers, &c. MURNIN, W. Nov. 27, 1936, No. 32485. [Class 8 (ii)] [Also in Group XI] A trough 6 for the reception of condensa tion products is formed around the lowermost extremity of a canopy 1 for a stove, boiler, or the like, on the inside thereof, and a pipe 7 or duct is provided to carry away the conden sation products.
Patent GB-909149-A (GB)
Title: A method and apparatus for continuously passing flat-films through treating baths
IPC: B29C48/08
Filed: 1960-09-22
Abstract: <PICT:0909149/IV(a)/1> In processes for making or treating flat films and ribbons by continuously passing them through coagulating or treating baths, the film leaving the liquid in an upward direction through the free surface of the bath, the film is passed at a high velocity, preferably a velocity of more than 100 metres a minute, through the bath and in leaving the bath is passed freely between two plates, one at either side of the film extending over the whole width of the film, and connected by side plates, which plates partly extend into the bath liquid and form, at least at their lower edges, a narrow slitshaped passage for the film, the passage of the film between the plates being effected in a way by which direct contact between the film and the plates is avoided. As shown in the drawing, a film 1 of regenerated cellulose is formed by extruding viscose through a slot die 2 which is submerged below the surface 3 of a spinning bath liquid in a container 4.  The film 1 is drawn over a guide rod 7 obliquely upwards between two blade-shaped plates 9 and 10 arranged across the whole width of the film and closed at each side by a side wall (not shown).  The plates 9 and 10 curve gradually upwards into a horizontal plane and taper downwards to a slit 0,9 mm. wide, the thickness of the regenerated cellulose film 1 at the plates being 0,15 mm. and the path of travel of the film from the guide rod 7 to a guide roll 8 being such that the film does not touch the edges of the slit.  If the width of the slit S between the plates is below an upper limit C1, then on increasing the rate of travel V of the film, a point will be reached at which the bath liquid between the plates suddenly disappears and the plates wipe almost the entire adherent liquid coating from the film.  This effect is obtained if V is greater than the expression C2/(C1-S) wherein C1 and C2 represent constants which are functions of the thickness of the film, the nature of the surface of the film and the plates, the shape of the plates, and the specific gravity and viscosity of the liquid.  The invention enables adhering bath liquid to be efficiently removed from the film leaving the spinning or treatment bath without risk of damage to the film such as may be caused by wipers or squeege rollers.
Patent GB-1472584-A (GB)
Title: Circular knitting machines
IPC: D04B15/94
Filed: 1974-07-24
Abstract: 1472584 Knitting machines BILLI SpA 24 July 1974 [7 Aug 1973] 32626/74 Heading D1C In a circular knitting, e.g. stocking, machine the drive to a welt dial via shafts 7, 11 from the needle cylinder drive is provided with a clutch whereof a tooth 39 on a first clutch member 37 on the shaft 7 is engageable with either of two teeth 31, 33 on a second clutch member 25, 27, on axial displacement of the shaft by means 45, 49, 55, 51 controlled by a program means e.g. a drum, such that displacement of the member 37 between its two positions of engageent allows relative angular displacement between the welt dial and cylinder e.g. for closing the toe of a stocking. The second clutch member 25, 27 is mounted on a tubular shaft 17 geared to the output shaft 11. The member 37 carries a further member 43 provided with a latch which is insertable into a window 61 in the member 27, the sides of the window being inclined to displace the member 37 into an intermediate disengaged position, when the welt dial is not required for use. The latch is controlled through means 65, 69, 73 by a program chain. The member 25 is braked on disengagement of the clutch by levers 57 actuated by a profiled member 55A.
Patent GB-1035875-A (GB)
Title: Intermetallic compounds and their preparation
IPC: H01F1/053
Filed: 1964-08-11
Abstract: A rare earth, intermetallic compound has the formula A5M2 where A is Gd, Tb, Dy or H0, and M is Pd or Pt.  The compound is stated to be useful as a core material in thermal switching, control and safety devices.ALSO:A rare earth intermetallic compound of formula A5M2 where A is Gd, Tb, Dy or Ho, and M is Pd or Pt, is prepared by heating a mixture of finely-divided A and M in molar ratio 5: 2 to melt and react the components. Two methods are described.  The first method involves placing pellets of the mixture in an inert refractory metal crucible made of, say, tantalum or molybdenum which is evacuated and sealed, e.g. by cold welding, and then heated to 1400 DEG  to 1600 DEG  C. by placing in a quartz vacuum apparatus surrounded by a radio-frequency induction heating coil. An atmosphere of helium or argon may replace the vacuum inside the crucible.  When reaction is completed the supply of energy to the coil is stopped and the crucible allowed to cool.  In the second method, a pellet is placed in the well of a water-cooled copper hearth (anode) of an arc melting furnace.  The furnace chamber is evacuated and flushed with an inert gas, and a movable tungsten cathode is used to strike an arc to the anode in the vicinity of the reactants which are thereby fused.  The cathode is mounted through a ball and swivel joint so that the molten reactants can be stirred by precessing the cathode tip around the periphery of the melt.  After the mixture has been fused, the arc is interrupted and the melt, once solidified, is turned over in the well and remelted in the arc.
Patent GB-320546-A (GB)
Title: Machine for the manufacture of hollow articles
IPC: A23G3/02
Filed: 1928-11-08
Abstract: 320,546. Boggild, C. B. K., and Jacobsen, M. Nov. 8, 1928. Moulding confectionery; casting - apparatus. - A machine for moulding hollow articles, particularly chocolate Easter eggs, comprises an endless belt which is equipped with moulds adapted to be rotated in two planes during the solidifying period. As shown, an endless mould belt composed of a pair of chains 2, Fig. 3, supports in pivots 8 mould frames 7 wherein the moulds 13 are journaled by pivots 11, 12. The mould belt 2, Fig. 1, carries the moulds past a charging- apparatus 1, through a shaking-apparatus 3 and cooling-chamber 4, then to a second shaking- apparatus 5 where the articles are delivered and finally back to the charging-apparatus through an oven 6. Rotation is imparted to each mould frame 7 by a sprocket 9, Fig. 3, on one pivot 8 engaging a driven chain 20; and the mould is rotated intermittently by a starwheel 14 on the pivot 11 engaging pins 19 placed at intervals, and is positioned by a spring 16 engaging a squared plate, 15. In the shaking-apparatus 3, the moulds first pass below and then above a shaking-table 18 rotated by eccentrics 21 or swinging weights. The moulds comprise a frame 22, Fig. 7, carrying a bottom mould section 23 to which, after charging, a cover 24 is applied and secured by clips &c. 25. The covers are removed as the moulds pass from the cooler 4, Fig. 1, to the shaking-apparatus 5.
Patent GB-1521199-A (GB)
Title: Electroplating material with metal from aprotic waterfree electrolytes in the absence of free oxygen
IPC: C25D3/44
Filed: 1976-08-05
Abstract: 1521199 Electro-plating using anhydrous electrolyte SIEMENS AG 5 Aug 1976 [21 Aug 1975] 32732/76 Heading C7B Articles are electro-plated from an aprotic water- and oxygen-free e.g. organoaluminium electrolyte in a sealable tank in which is maintained an inert atmosphere and to which are independently connected a rinse tank, an electrolyte tank and optionally a second rinse tank. As described, a rotatable cage for articles is suspended from a lid of the plating tank, all the tanks being flushed with e.g. N2, Ar, Kr or hydrocarbon vapour. Liquid is supplied to and returned from the plating tank by individual pumps or by use of gas-pressure. In operation rinse liquid is first applied, followed by plating electrolyte and then rinse liquid from a separate tank each liquid being returned to its tank after use. The electrolyte and plating tanks may be heated. A liquid-seal gas outlet may be provided for pressure relief, containing a reflux condenser to prevent loss of liquid vapour.
Patent GB-309375-A (GB)
Title: Improvement in adjustable broach
IPC: B23D43/02
Filed: 1928-11-09
Abstract: 309,375. Marks, Sir G. C., (Detroit Broach Corporation). Nov. 9, 1928. Tools; rifling bars.-An adjustable broach for holes of various shapes, spiral and other keyways and like grooves, comprises a core 21 having a number of bearing surfaces 26 spaced. apart both axially and circumferentially, each surface supporting a cutter 30 provided with a retaining dovetail member 31. The surfaces are inclined so that adjustment for diameter or wear is obtained by axially moving the cutters on the surfaces. The cutters are spaced by collars 40 and end collars 41 engage adjusting nuts 24, lock nuts 25 being also provided. One or more pilot collars 42 may be provided. In a modifica. tion, the sides 61 of the cutters are normal to the surfaces 26, thus providing top rake. Spacing collars 64 with edges ground to a corresponding inclination are then employed.
Patent GB-624109-A (GB)
Title: Improvements in and relating to final drive arrangements for vehicles
IPC: B60K17/06
Filed: 1945-11-09
Abstract: 624,109. Differential gearing ; friction clutches. VICTOR ELECTRICS, Ltd., OUTRAM, H. N., and LIVESLEY, T. Nov. 9, 1945; No. 32928/46. Divided out of 29927/45. [Class 80 (ii)] [Also in Group XXXI] In a final drive arrangement for vehicles, particularly electrically propelled, drive is transmitted through a resilient coupling to one road wheel at light loading, and through a clutch to an additional road wheel automatically at heavier loading. A driving shaft 11, Fig. 1, which may be coupled to an electric motor, carries a pinion 12 which drives a crown wheel 15 secured to a hub plate 16 freely rotatable on the axle shaft 21. The plate 16 has two pins 18 on which are pivoted a pair of brake shoes 19 actuated by cam 22 fixed on the axle shaft 21 through the intermediary of leaf springs 20 ; the shoes 19 are held clear of the drum 26 by a pair of springs (not shown). Under light load power is transmitted from shaft 11, pinion 12, gear 15 and plate 16, through the leaf springs 20 to cam 22, shaft 21 and wheel hub 24. At heavier loading relative rotation occurs between the cam 21 and leaf springs 20 whereby the shoes 19 are applied to the drum 26 which is fast with a second axle-shaft 25, spigoted to the first shaft 21 at 21a, whereby power is also transmitted to the second road wheel.