baber/WOPTO huggingface dataset:
Patent GB-301811-A (GB)
Title: An improved process of spinning viscose silk
IPC: D01F2/06
Filed: 1927-08-06
Abstract: 301,811. Kindermann, H. Aug. 6, 1927. Cellulose xanthates, proccsses for making filaments from.-Coagulation of the filaments in the spinning of viscose silk is effected in two baths, the first bath comprising an acid and the second bath comprising an aqueous solution of a compound, such as the chloride, nitrate, or sulphate, of copper, cadmium, tin, lead, mercury, bismuth, antimony, selenium, or tellurium. Such baths permit the treatment of unripe viscose. The composition of suitable baths is described by way of example. The provisional Specification states that the second bath may comprise an aqueous solution of an arsenic compound.
Patent GB-584537-A (GB)
Title: Improvements in or relating to the production of corrosion-resistant phosphate coatings on metal surfaces
IPC: C23C22/80
Filed: 1944-10-26
Abstract: An aqueous solution to simultaneously clean and activate metal surfaces prior to phosphate treatment, comprises at least one alkali compound to produce a pH of 10 or more, disodium orthophosphate or sodium pyrophosphate and a compound of at least one of the metals titanium, zirconium, lead, tin and arsenic.  The phosphate and the compound may be dissolved in water and then evaporated to dryness at a low temperature.  The alkali may be in the form of a carbonate, e.g., soda ash, sodium bicarbonate, or carbonate mixtures, sodium hydroxide, or sodium silicate.  The articles are treated by spraying or immersion in the solution. Specification 560,848 is referred to.
Patent GB-300225-A (GB)
Title: Improvements in internal combustion engines
IPC: F01L7/06
Filed: 1927-08-08
Abstract: 300,225. Zeitlin, J. Aug. 8, 1927. No Patent granted (Sealing fee not paid). Spray carburettors.-Separate carburettors may be used for each group of three or four cylinders, the central inlet ports 3<@> of each of the cylinder groups being connected by a small passage to equalize the action of the carburetters at low speeds.
Patent GB-995828-A (GB)
Title: Improvements relating to fluid amplifiers
IPC: F15C1/04
Filed: 1964-05-21
Abstract: 995, 828. Controlling fluid flow. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 21,1964 [May 28,1963], No. 20950/64. Heading G3H. [Also in Division G4] In a fluid amplifier a pressure pulse to one side of a laminar fluid stream discharging into a main outlet channel renders it turbulent and causes it to adhere to a wall and discharge into an auxiliary channel only while said pressure pulse is applied. In Fig. 1, fluid from a pipe 14 is rendered laminar by ribs 16 and a channel 17, then discharged to an outlet pipe 30 through a channel 29 unless a fluid pressure pulse is applied through one of two control ports 23, 24 in which case the outer layer (only) of the fluid stream becomes turbulent and it adheres to wall 20 or 19 respectively while the pulse lasts, and discharges into pipe 28 or 26 through channel 27 or 25 respectively. If a pulse is applied to both control ports 23, 24 the stream discharges to the central pipe 30. Escape ports 31, 32 are provided to bleed off excess pressure to prevent it separating the jet from a wall to which it is adhering. If the output is taken from pipes 26 and 28 the amplifier functions as an EXCLUSIVE OR gate. Fig. 4-7 (not shown) show a modification of the Fig. 1 arrangement comprising in addition another control channel inclined at 45 degrees to both channels 17, 22 and meeting the junction thereof. The extra control channel is fed by a Helmholtz resonator cavity actuated by an earphone operating, say, in the range 1. 5-3. 0 kc/s. Alternatively even more control channels may be OR'd together on one side to produce a pressure signal sufficient to render the outer layer of the fluid stream turbulent if any one or any certain number of the control channels are pulsed.
Patent GB-1513763-A (GB)
Title: Asbestos-free drywall joint composition
IPC: C04B26/04
Filed: 1975-05-16
Abstract: 1513763 Joint composition NATIONAL GYPSUM CO 16 May 1975 20954/75 Heading C3N A joint composition free of asbestos fibre, comprises by dry weight, 50-99% of finely powdered inorganic filler other than attapulgite clay, 1-50% of a binder for said filler, 0À1-5% of an organic hydrophilic thickener other than the binder specified hereinabove, 0À1-5% finely powdered attapulgite clay and a flocculating agent for said clay other than the binder or the organic hydrophilic thickener specified hereinabove in an amount of 0À1-5À0 parts by weight for every 10 parts by weight of attapulgite clay. The inorganic filler may be limestone, mica or clay; the binder may be polyvinyl acetate, polyvinyl alcohol, starch or casein; the organic hydrophilic thickener may be hydroxypropyl cellulose; and the flocculating agent may be polyacrylamide, a copolymer of acrylamide and an acrylic or polyethylene oxide.
Patent GB-391426-A (GB)
Title: Improvements in or relating to the production of hydrogen peroxide
IPC: C01B15/013
Filed: 1931-07-22
Abstract: Mixtures of hydrogen peroxide vapour and water vapour of any origin are freed from constituents in the form of mist or drops prior to condensation.  This may be effected by passing the vapour through a layer of finely grained material or through a layer of Raschig rings, or by electrostatic action.  The process may be applied to vapours obtained by the distillation of persulphuric acid or by the vacuum distillation of acid ammonium persulphate or to hydrogen peroxide vapours prepared from potassium persulphate.
Patent GB-684952-A (GB)
Title: Improvements in the production of hollow panels from webs of fibrous material
IPC: B27D1/06
Filed: 1948-08-09
Abstract: 684,952. Apparatus for making compound sheet materials. STEFFENINO, G. Aug. 9, 1948. [Aug. 8, 1947] No. 20996/48. Class 140. In the continuous production of hollow panels from webs of fibrous material impregnated with a binder e.g. synthetic resin, two or more webs such as A, A<SP>1</SP>, together with webs B, forming reinforcing ribs, are fed through rolling cylinders 1, 2, which compress the whole formation to consolidate the webs. The binder may also be applied to contacting surfaces and if the webs are impregnated with thermosetting resin one or more pairs of cylinders may be heated. A curved panel is obtained by feeding the webs along a curved path. The apparatus shown in Figs. 1 and 2 comprises distance boxes 17 enclosing mutually engaging counter-pressure rollers 18 opposite each pair of rolling cylinders and guide rollers 19, visible through windows 16<SP>1</SP> which abut the reinforcing ribs to maintain them in position. In the apparatus shown in Figs. 4 and 5 each counter-pressure roller consists of a central part with overhanging pivots 18<SP>1</SP> on which run external parts 18<SP>11</SP>. In another modification Fig. 6, rotating counter-pressure rollers 18 having mutually engaging toothed surfaces assist in the feeding of the panels : these rollers are rotated by helical wheels 20 which are dragged and rotated by a mechanism comprising a helical wheel 21 and worm-wheel 22 driven through gears 23 and 24 from a driving shaft 25 through a gear and a countershaft 27 : the shafts 25, 27, carry toothed rollers 251, 27<SP>1</SP>, which hold the ribs B in position and move them forward. The Specification as open to inspection under Sect. 91 describes the contirious lamination of plane and/or longitudinally or transversely corrugated webs with or without intermediate stiffening ribs, and the continuous winding and subsequent consolidation of open and closed laminated frames from one or more webs. The apparatus comprises laminating rollers heated by steam, or electric heater elements inserted in peripheral recesses or by a radio-frequency heating circuit; corrugating rollers ; and spherical members, each comprising four driven barrel-gears mounted in a cross-frame, for supporting the cavities formed between superposed corrugated webs, during the rolling process. This subject-matter does not appear in the Specification as accepted.
Patent GB-995829-A (GB)
Title: Fluid stop valve
Inventor: LESSELS JOHN
IPC: F16K41/10
Filed: 1964-05-22
Abstract: 995,829. Valves. SPEMBLY Ltd. May 22, 1964, No. 21153/64. Heading F2V. A valve which has a body 1 with a thinwalled inlet and outlet tube welded thereto, is provided with a stuffing box consisting of upper and lower parts 10, 8 interconnected by a thin-walled tube 12, each of the parts housing a P.T.F.E. seal 11, 9 respectively. The movable closure member 3 in a body chamber 2 has a stem 13, the intermediate portion 16 of which is a thin tube. The lower seal 9 is disposed between a washer 17 and a threaded brass ring 19, whilst the upper seal 11 sits on a washer 20 and is surmounted by a brass gland ring 21 into which the stem 13 is threaded. The member 3 has a P.T.F.E. seating face 24. The body 1 and stuffing box is enclosed in a jacket 26 which is evacuated and/or filled with a powdered thermal insulator. Except for the hand wheel, jacket and other parts mentioned above the valve is made of stainless steel. The seals and closure member may be removed without disturbing the insulating arrangements.
Patent GB-257925-A (GB)
Title: Process for the production of artificial silk from cellulose or cellulose compounds
IPC: D01F2/00
Filed: 1926-08-27
Abstract: 257,925. Wolff & Co., Czapek, E., and Weingand, R. Sept. 1, 1925, [Convention date]. Cellulose xanthates and other cellulose solutions, processes for making filaments from.-Precipitating baths to be used in the manufacture of artificial silk from viscose, cuprammonium and like aqueous cellulose solutions, consist of a solution in methanol of an inorganic acid or an inorganic salt or both, for example, a solution of magnesium sulphate or chloride containing an inorganic acid. The actual precipitation may follow a preliminary coagulation in pure methanol.
Patent GB-827162-A (GB)
Title: Process for the production of ferromanganese products from managanese-bearing materials
IPC: C21C7/00
Filed: 1956-07-09
Abstract: Material low in manganese content and high in phosphorus and iron is calcined to form a substantially constant composition charge and is fed into a covered electric furnace on to the surface of a molten slag bath maintained therein, where it is subjected to the action of a relatively low-phosphorus content ferromanganese or ferromanganese-silicon alloy and added basic or acidic fluxing agent sufficient to produce a molten slag having a base (including manganous oxide) to acid ratio in the range of 0.8-1.5 to 1.0 on a molecular basis.  The reaction takes place at a temperature in the range 1300-1500 DEG C. to produce a molten metallic iron product containing phosphorus and other impurities present in the original charge and a low-phosphorus, manganese-enriched slag, the latter being passed to a second covered electric furnace on to the surface of a molten slag and subjected to the action of a reducing agent and added fluxing material at a temperature in the range 1300-1500 DEG C. to produce a ferromanganese alloy.  Iron may be added to the charge in the first furnace to provide sufficient metal product to function as a collector for the phosphorus.  The metal and slag may be passed to a holding furnace to effect a more complete separation.  In the operation of both furnaces the control of temperature is effected by maintaining the arcing tips of the electrodes within the range from 1/2 inch above the upper slag surface to 3 inches below it, by controlling the depth of slag in the furnace and by feeding the charge at such a rate and in such a way as to avoid submergence of the arcing tips in the raw charge material.  The reducing agent in the second furnace may be carbonaceous or non-carbonaceous depending on the carbon content required in the product.  A ferromanganese-silicon may be produced in this furnace which may be returned to the furnace for use as the reducing agent or used with manganese-containing slag from the first stage to produce a required ferromanganese product in a third operation. Specifications 762,469 and 827,161 are referred to.
Patent GB-694867-A (GB)
Title: Improvements relating to gyroscopes
Inventor: WARD LESLIE JOSEPH
IPC: G01C19/30
Filed: 1950-08-28
Abstract: 694,867. Gyroscopic apparatus. ENGLISH ELECTRIC CO., Ltd. Aug. 24, 1951 [Aug. 28, 1950], No. 21220/50. Class 97 (iii). In gyroscopic apparatus, e.g. for keeping a searchlight or radar beam directed on a target when the searchlight or radar apparatus is air- or sea-borne, precessional torques are applied to the stator of the gyroscope which is supported pivotally about two mutually perpendicular axes. both perpendicular to the normal spin axis, by means of a plurality of ferromagnetic circuits having air-gaps all lying substantially in a spherical surface having its centre at the inter. section of the said mutually perpendicular axes and a conductor coil fixed to the said stator and arranged to pass through the said air gaps, means being provided to vary the magnetic fluxes in the gaps which react with current in the conductor coil. As shown, the stator 11 of a gyroscope arranged to spin about-an axis 10 in spin bearings 11a, 11b of the stator is supported pivotally about two mutually perpendicular axes 12, 13 which are both perpendicular to the axis 10, and has a current carrying coil 15 fixed coaxially with the spin bearings 11a, 11b and arranged to pass through air gaps of a plurality of ferro-magnetic circuits such as 16-18-19 and 17-18-19. These magnetic circuits are provided with means such as coils 25, 26 in circuit with an electrical source of power 27 and a variable resistance 28 to vary the fluxes in the air gaps. The coil 15 is supported on the dome part 14a of a spinning having also a tubular part 14 secured to the stator 11. Four magnetic circuits may be provided symmetric. ally placed around the axis 10, each having an individual pole such as 16 or 17 and all sharing a return path from a part spherical polepiece 18 or centre pole 19 to yoke 20 which serves as a base-plate secured to frame plates 22.
Patent GB-896851-A (GB)
Title: Improvements in or relating to conveyors
Inventor: ASHLEY JOHN RAYMOND
IPC: B65G37/00
Filed: 1957-07-04
Abstract: 896,851. Endless conveyers for use in mines. COAL INDUSTRY (PATENTS) Ltd. Oct. 1, 1958 [July 4, 1957], No. 21227/57. Class 78 (1). In an arrangement comprising one or (as shown) a pair of face conveyers 25, 41, e.g. of the scraper type, which supply mined material to a feeder conveyer, e.g. an endless belt 19, the feeder conveyer framework is composed of sections 10, 11, 12, 13 hinged together at 14, 15, 16, the end section 10 being provided with one or a pair of end frame units 24, 40 of the face conveyer or conveyers. The, or each, of the end units 24, 40 comprises a driving sprocket for the corresponding scraper conveyer 25, 41. A motor 27 mounted on the feeder conveyer drives the, or each, sprocket of the end unit, or units, 24, 40 thrpugh a corresponding gearbox 28 connected to the respective sprocket through a shaft contained within a casing 29 and having universal joints at each end. In order to shift the assembly up to follow the working face a pair of cylinder-type jacks 33 is provided below the feeder conveyer, the pistons 34 of which act on pit props (not shown). The jacks 33 are supplied with fluid under pressure from a pump 30 driven by the motor 27 and which also supplies fluid through pipes 32 to jacking devices disposed along the face conveyers 25, 41. The sections 12, 13 of the feeding conveyer are carried on wheeled bogies 17, 18, respectively. The end section 10 is provided with pockets 36 to receive staker props.
Patent GB-1314087-A (GB)
Title: Electrophotographic copying machine
IPC: G03G21/16
Filed: 1970-05-04
Abstract: 1314087 Electro-photographic apparatus CANON K K 4 May 1970 12 May 1969 12 Aug 1969] 21371/70 Heading G2H An electro-photographic copying machine 1 comprises a housing, in original carrier 11 mounted on top of the housing for reciprocal movement and in rotary sensitive drum 2 mounted in the housing below the carrier. Means 5 are also provided for projecting a light image of an original on to the drum and for forming on the drum an electrostatic latent image of the light image. Developing means 7, copy sheet feed means 250, image transfer means 9, and transferred image fixing means 400 are also provided around the drum along with cleaning means 61 for cleaning the drum subsequent to the transfer of the developed image. The machine is characterised by the feature that the light image projecting means and the cleaning means are disposed at opposite sides of the drum and the developing means, copy sheet feed means, image transfer means and the fixing means are all disposed at a lower level than the rotary axis of the drum. As indicated in Fig.14 the developing means, copy sheet feeding means, image transfer and fixing means and the cleaning means are so mounted around the drum that rotation of an operating lever would cause all the means to be moved towards or away from the drum simultaneously.
Patent GB-462644-A (GB)
Title: Improvements in or relating to pistons
IPC: F16J1/14
Filed: 1936-08-01
Abstract: 462,644. Pistons. DU RAGET DE CHAMPBONIN, R. H. G. Aug. 1, 1936, No. 21380. Convention date, Dec. 10, 1935. [Class 122 (i)] In a piston comprising a head 1 carrying a gudgeon-pin bush 6 upon which the skirt 5 is pivotally mounted, and in which the portions 4 of the skirt between the thrust faces are flat, a free annular space is provided between the bush support 2 and the rim of the head for the passage of cool oil vapour. The skirt may be perforated and the head grooved as at 8.
Patent GB-446873-A (GB)
Title: Improvements in radial-cylinder internal-combustion engines and the driving gear thereof
IPC: F02B57/10
Filed: 1935-07-27
Abstract: 446,873. Driving - gear for radial - cylinder engines. NILSSON, N. U., 2, Liding÷, Ulfsborg, Sweden. July 27, 1935, No. 21394. [Class 7 (ii)] In a radial-cylinder engine two or more pairs of pistons 7 drive on a cam track 25 through rollers 24 which are kept in contact with the track, by spring-operated telescopic rods 27 extending between them. The track 25 is preferably elliptical. The pairs of cylinders have combustion chambers 2b, 3b, and rotate, with a valve member 17, on a shaft 9, 9 ; the member 17 has ports co-operating with inlet and exhaust pipes 15, 16 and arranged so that the engine works on the four-stroke cycle. The cylinders may be stationary, the cam-track then being mounted to revolve. An annular flange 4 may extend around the engine and contact, with packing, on an outer casing, the outer compartment, thus formed, being filled with lubricant. As modified in Fig. 6, cranked gudgeon-pins 37 extend from the pistons through slots in the cylinders and carry rollers 24 bearing on a cam track 40. The gudgeons are connected by telescopic rods 27 7 extending through further slots in the cylinders. The valve comprises a disc 11 in which is mounted a sparking plug 45 co-operating with ports in the member 1 at the moment of ignition. If the engine comprises four pairs of cylinders, they are arranged at an angle of 45‹ to one another.
Patent GB-639223-A (GB)
Title: Manufacture of dyestuffs of the anthraquinone series
IPC: C09B1/516
Filed: 1947-08-06
Abstract: Dyes are made by acylating a mono-oxymono-aminoanthraquinone, of which the oxy group is in 1-position, and the amino group in 8-position, using an aliphatic monocarboxylic acylating agent. Acylating agents used may be derived from acetic, propionic, butyric, valeric, caproic, caprylic, lauric, palmitic, stearic, or oleic acids.  Reaction media specified are pyridine or other tertiary base, acetone, nitrobenzene, and chlorobenzene or excess acylating agent. The products dye or print cellulose esters, e.g. the acetate, superpolyamides, superpolyurethanes, and polyvinyl compounds yellow shades, and colour fats and oils.  In examples, 1-amino-8-oxyanthraquinone is reacted with (1) acetyl chloride in pyridine; (2) excess acetic anhydride; (3) butyryl chloride in monochlorbenzene in presence of dimethylaniline, or with caproic, caprylic, lauric, stearic or oleic acid chloride; (4) propionyl chloride (or crotonyl, valeryl, or isobutyryl chloride) in o-dichlorbenzene in presence of dimethylaniline.  In a dyeing example, cellulose acetate is dyed with the product of (1) or (2) above after acid-pasting and mixing with sulphite cellulose waste liquor.
Patent GB-919175-A (GB)
Title: Method of manufacturing corrosion proof pipe fittings
IPC: F16K27/00
Filed: 1960-06-17
Abstract: 919,175. Preventing corrosion. RESISTOFLEX CORPORATION. June 17, 1960 [June 30, 1959], No. 21436/60. Class 123 (1). [Also in Groups V and XXVIII] A corrosion proof pipe fitting is made by inserting a length of extruded sintered polytetrafluoroethylene resin tubing 34 into the tubular body section 12 of a metal housing having at least one lateral branch opening 18 between its ends (e.g. tees, crosses, offset ells), heating the assembly to a temperature at which the resin can be formed and applying blowing pressure to the interior of the tubing 34 to expand a portion of the wall of the tubing outwardly through the opening 18. The opening 18 is surrounded by a bolt flange 22, the face of which lies in a plane tangent to the exterior surface of the section 12 and, in order to further reduce the length of the opening 18, the interior surface of the section 12 follows a gradual transitional curve 24 adjacent the opening. Section 12 is provided with flanges 14, 16, and rounded edges 15, 17, also small vent holes 32 to prevent entrapment of air. After the tubing 34 has been inserted in section 12, the tubing ends are flared over the rounded edges 15, 17 and flange plates 40, 44 having plugs 42, 46 are bolted to the flanges 14, 16. The flared ends 36, 38 of the tubing 34 are received in recesses 41, 45 so as to provide a clearance between the respective flange plates and end flanges. Flange plate 44 has a fitting 48 for enabing air under pressure to be admitted to the interior of the tubing 34. Next a gasket 50 of compressed asbestos is placed on the face of flange 22 and a removable hollow mould 52 secured to the flange over the opening 18 on top of the gasket 50. Vent holes 62 in the cover plate 56 of mould 52 permit the escape of entrapped air during the moulding process. The mould is heated to between 600 and 619 F. and air under a pressure of 200 p.s.i. admitted to the interior of tubing 34 causing a portion to be blown up into the mould cavity 60. As soon as full pressure is introduced, the entire unit is cooled by quenching and then disassembled, the crown 64 severed from the expanded portion of the tubing 34 and the skirt 66 pressed down over the gasket 50 by means of a flaring tool heated to 600 F. Generally, the gasket 50 can be omitted when the skirt 66 exceeds 0.150 inch in thickness.
Patent GB-1074407-A (GB)
Title: Hydrocarbontin halides
IPC: C07F7/22
Filed: 1965-05-20
Abstract: Hydrocarbon tin trihalides are prepared by reacting anhydrous stannous halide and hydrocarbon halides in the presence of an amine or amide catalyst and maintaining substantially equivalent amounts of the reactants in the mixture during the reaction which is at 100 DEG to 250 DEG  C. and at autogenous pressure.  The hydrocarbon group may be alkyl, aryl, alkaryl, aralkyl or cycloalkyl and the group may be inertly substituted.  The halide may be Cl or Br. The catalyst is used in the amount of at least 0.1, e.g. 0.01 to 2, mole per cent of the amount of SnX2 present.  The reaction may be carried out in the presence of an inert diluent which may have a b.p. of 75-250 DEG  C., e.g. aliphatic, cycloaliphatic and aromatic hydrocarbons or mixtures of these.  The reaction time may be 2-10 hours.  The product may be separated by distilling of the solvent and unreacted hydrocarbyl halide, and then removing other organotin compounds by distilling or solvent extraction.