baber/WOPTO huggingface dataset:
Patent GB-1394167-A (GB)
Title: Hydraulic former
IPC: D21F1/06
Filed: 1972-07-27
Abstract: 1394167 Paper-making apparatus BELOIT CORP 27 July 1972 [18 Aug 1971] 35187/72 Heading D2A  The cylinder 10 of a cylinder forming machine is fed with pressurized stock from a headbox 13 through a slice opening 13b, a flexible curved slice roof 22, e.g. of fibre glass or reinforced plastics, extending from the opening 13b round the roll being changeable in shape by means of jacks 23, 24 to obtain a forming zone 25 of optimum shape. The cylinder 10 is porous and may have a suction gland extending throughout, the forming zone 25 up to a pick-up felt 11. The felt may service a plurality of machines in series to form a multi-layer web. Stock is supplied to a header 14 in the headbox 13 and from the header it flows through parallel tubes 15 to a slice chamber 13a provided with flexible trailing elements 16. The upper wall 20 of the chamber 13a is pivotally mounted by a hinge 21, e.g. of stiff plastics such as reinforced fibre glass, so that the size of the slice opening 13b can be adjusted. A cross-machine beam 26 supports the roof 22 and jacks 23, 24 and is adjustable by a mechanical or hydraulic actuator 27.
Patent GB-979023-A (GB)
Title: Improvements in or relating to rotating electrical machinery
Inventor: PARSONS ARTHUR JAMES
IPC: G09B23/18
Filed: 1962-09-17
Abstract: 979,023. Dynamo-electric machines. MAWDSLEY'S Ltd. Nov. 4, 1963 [Sept. 17, 1962], No. 35264/62. Heading H2A. In a machine for teaching &c. the laminated stator is composed of separate segments which can be removed or replaced, together with their associated slot-conductors, these being taken out to multi-pin connectors 7 on the frame sector to which the core-segment is secured. Core segments 2a include one slot, and 2b two slots. Interconnection terminals 9 are mounted on segmental flange 8. Various rotors may be used. The machine may be used as a dynamometer, and many sorts of motor or generator.
Patent GB-972266-A (GB)
Title: Fused cast refractory
IPC: C04B35/107
Filed: 1962-09-17
Abstract: A fused cast refractory consists of interlocking crystals of corundum and calcium hexaluminate, of which crystals the CaO content is not more than 7.5% in weight per cent by oxide analysis, and the balance is Al2O3, the majority of the crystals being of a size less than 6000 microns.  The refractory may comprise 0.4 to 7.5% CaO, up to 1.5% MgO, up to 0.5% SiO2, up to 0.5% alkali metal oxide, other impurities not exceeding 1% together with the SiO2 and alkali metal oxide contents, the remainder being Al2O3.  The refractory may be prepared by granulating the ingredients of the mix, mixing in the appropriate proportions, charging the mix to a furnace, melting therein, and casting in moulds and annealing. The pouring temperature of the molten refractory may be 2030-2050 DEG  C.  Specification 265,847 is referred to.
Patent GB-1058643-A (GB)
Title: Improvements in or relating to abrasives
IPC: B24D3/00
Filed: 1963-09-06
Abstract: A coated abrasive article comprises a sheet backing, alumina granules firmly bonded to the backing by means of a hardened make adhesive and a hardened sandsize adhesive and, at the exposed abrading surface, a supersize coating which differs in composition from the sandsize and which consists of a heat-decomposable film-forming organic polymer containing chemically bound chlorine, bromine or sulphur.  The adhesives may be hide glue or a phenol-formaldehyde resin.  The polymer may be selected from polyvinyl chloride or bromide; polyvinylidene chloride; vinyl-chloride/acetate copolymers; a reaction product of polyepichlorohydrin and a trimethylol propane-toluene 2,4-diisocyanate polymer; a reaction product of a polymer of the diglycidyl ether of tetrachloro bisphenol A, 1,4,5,6,7,7 - hexachlorobicyclo - (2,2,1) - 5 -heptane-2,3-dicarboxylic anhydride and hexahydrophthalic anhydride; a reaction product of 1 - epoxy - ethyl - 3,4 - epoxycyclohexane and the above dicarboxylic anhydride; chlorinated coumarone-indene resin; a reaction product of a mercapto succinic acid-neopentyl glycol polyester and N,N1-bisethylenisosebacamide; and a condensation product of an organic dihalide and sodium polysulphide.
Patent GB-1534388-A (GB)
Title: Process for preparing diene hydrocarbons
IPC: C07C5/48
Filed: 1977-08-24
Abstract: 1534388 Oxidative dehydrogenation A L TSAILINGOLD R K MIKHAILOV and S M KOMAROV 24 Aug 1977 35437/77 Heading C5E A process for preparing a diene hydrocarbon comprises oxidative dehydrogenation of an alkane or alkene at 400 to 700‹ C. in the presence of an inert diluent and an oxidizing agent in a fluidized bed of an oxide catalyst in a reactor containing at least two sections which are divided vertically and communicate in the upper and lower parts of the fluidized bed of the catalyst, the bed circulating in a predetermined direction from section to section while being subjected to reduction during the oxidative dehydrogenation of the alkane or alkene upon its co-current movement with the hydrocarbon feed, to desorption of the reaction products from the catalyst upon its counter-current movement with the inert diluent, and to oxidizing regeneration upon its co-current movement with the oxidizing agent supplied. Examples describe the preparation of butadiene from butane and butene and of isoprene from pentane and pentene using Mg-Mo oxide or Bi-Mo oxide catalysts.
Patent GB-489916-A (GB)
Title: Improvements in and connected with fuel feed control mechanism for internal combustion engines
IPC: F02D1/00
Filed: 1937-12-22
Abstract: 489,916. Starting prime movers. DAIMLER-BENZ AKT.-GES. Dec. 22, 1937, No. 35509. Convention date, Dec. 23, 1936. [Class 38 (iv)] [Also in Group XXVI] A speed governor 2 is connected by levers 3, 4 and 5 to the regulating rack 6 of a fuel injection pump. The lever 3 has a fulcrum carried by a member 9 which is moved by a solenoid 12, when the starting switch 13 is closed, to increase the fuel supply for starting.
Patent GB-1288002-A (GB)
Inventor: FAUST C C
IPC: F16L55/10
Filed: 1970-07-22
Abstract: 1288002 Blood containers UNION CARBIDE CORP 22 July 1970 [23 July 1969] 35576/70 Heading A5R [Also in Division F2] A thermoplastics tube 10 for use in medicinal work, e.g. carrying blood, is closed by a diaphragm 20 integral with the tube and has a trough 15 forming an extension of the tube from the diaphragm to guide a cannula 22 for piercing the diaphragm. The diaphragm 20 is formed by collapsing a wall portion 14 at the end of, or intermediate the ends of the tube 10 towards an opposite wall portion 16, and sealing the two walls between a heat seal bar and a platen, the resulting trough 15 being formed upon removal of the bar and platen, and the diaphragm 20 being formed of part(s) of the wall 14 extending towards the wall 16. The or each diaphragm 20 is formed perpendicular to the tube axis by a plunger, preferably heated. Alternatively, the two wall portions 14, 16 are sealed across the end of the tube 10, and a separate trough 15 is sealed thereto. The diaphragm 20 may be cup-shaped. The tube 10 may be of polyethylene and may provide the outlet from a flexible blood container.
Patent GB-342812-A (GB)
Title: Improvements in the manufacture of artificial silk
IPC: D01D5/20
Filed: 1929-11-21
Abstract: Apparatus for making filaments; pumps for viscous liquids; cam actuated; revolving cylinders.-Artificial silk such as viscose, cuprammonium, nitrate, or acetate silk, having systematic variations in the diameter of the individual filaments such that thin and thick portions of substantial length alternate, is produced by delivering the spinning solution to the jets by pumps constructed to give periodic variations of pressure at constant speed of operation.  The pumps may be made with a plurality of pistons whose strokes overlap and which are constructed to deliver different quantities of fluid. The pistons of each pump may be of different diameter or the delivery from one or more of the pistons may be retarded at the beginning or end of the stroke.  The known type of pump having three pistons arranged to rotate in a cylindrical casing with their ends in contact with incline rings acting as cam surfaces, may be modified by providing a clearance between the end of a piston and its coacting cam.  In this way lost motion is introduced at the beginning or end of each stroke of the piston.  Alternatively, the shape of the actuating cam surface may be modified so that the pistons are retarded at the beginnings or ends of their strokes, but in this case all the pistons in the pump are equally affected.  In the case where a clearance is provided between the piston and the actuating cam, high pressure in the fluid supplied to the pump should be avoided and it is preferable to feed the fluid to the pump by gravity under a small head.  The apparatus enables filaments to be obtained wherein the thin and thick portions are of substantial length, and on knitting or weaving fabrics from such filaments, an oblique barry effect can be produced.
Patent GB-463185-A (GB)
Title: Improved hand tool or implement for weeding and other purposes
IPC: A01B1/06
Filed: 1936-12-29
Abstract: 463,185. Hand tools for working soil &c. LARSON, J. A. Dec. 29, 1936, No. 35600. [Class 6 (ii)] In a tool for weeding &c. provided with claws or arms, the outer ends of which have holes or other means to receive a wire stretched tightly between them, the arms project in such directions that the wire at each side of at least one of the arms forms with the outer part of the arm an angle of at most 45‹. The arms 2, 3, 4, Fig. 1, project radially from a head 1 attached to the end of a handle, one arm 2 being longer than the others. The wire 6 passes through holes 5 in the arms, the hole in the long arm 2 being at some distance from the end, which is pointed so that the tool may be used like a pick. The arm 2 may fit into a socket 7 and may be adjusted by means of a screw 18 bearing against its inner end and provided with a head 8 and lock-nut 9. The other arms 3, 4 may be adjustable similarly or adapted to be lengthened. In a modification, the arms are curved so as to be resilient and the ends of the wire are connected to a pin or screw. This may be rotatable for tightening the wire. In the modification shown in Fig. 5, the arms are flat and of equal length and the wire is tightened by means of a lever 13 pivoted on the head 1 or the handle 10, the wire fitting into a recess 20 and the lever being secured by a ring 21 slidable along the head 1. In another modification, there are four arms of circular, oval, rectangular, or other cross-section.
Patent GB-493129-A (GB)
Title: Lead binding for glass of glass roofs, and the like
IPC: E04D3/08
Filed: 1936-12-30
Abstract: 493,129. Glazing roofs. GUGLIELMINO, P. Dec. 30, 1936, No. 35758. Void. Convention date, Dec. 30, 1935. [Class 20 (iii)] Glass roofing sheets are supported on beads 2<1> on a profiled or folded lead strip. The strip may be supported by an inverted-T-shaped astragal a, or be supported on the face of an upright-T-shaped astragal. Flashing strips 3 may be integrally formed on the profiled member or bent out from the ends of the folded strip, as shown.
Patent GB-475456-A (GB)
Title: Improvements in or relating to the construction of roller platens for typewriters or like machines
IPC: B41J11/053
Filed: 1937-06-26
Abstract: 475,456. Typewriters. IMPERIAL TYPEWRITER CO., Ltd., and PATEMAN, A. June 26, 1937, No. 35787/36. Drawings to Specification. [Class 100 (iv)] In a roller platen for typewriters and the like, comprising in known manner a central wooden core, an inner sleeve of rubber or similar resilient material, and an outer cover of cork composition, the composition comprises a 10-15 per cent casein or gelatinous skin or bone base glue. The core, the inner sleeve, and the cover are held together by coatings of shellac. The composition is stated to be resistant to the action of the chemicals contained in indestructible stencils.
Patent GB-1279009-A (GB)
Title: Shaving head for a dry-shaver
IPC: B26B19/10
Filed: 1969-07-16
Abstract: 1279009 Dry shavers PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 16 July 1969 [19 July 1968] 35862/69 Heading B4B A shaving-head for a dry shaver comprises a stationary shear-plate 1 force-operation with a movable blade 5 slidable in an aperture 9 in a holder 8. During cutting of a hair 2, Fig. 1, an upward component force K is set up which tends to move the blade 5 away from the surface of the shear plate 1. In order to avoid the use of an excessive pre-loading, e.g. by a spring (11), Fig. 3 (not shown), in order to maintain the blade in contact with the shear plate, a shank portion 10, Fig. 2, of the blade is allowed to deflect under the action of the cutting force 5 thereby causing friction to be developed at points 12, 13, Fig. 2, such frictional forces being sufficient to balance the force K.
Patent GB-956691-A (GB)
Title: 3-unsubstituted-í¸-androstene compounds
Inventor: PETROW VLADIMIR
IPC: C07J75/00
Filed: 1961-10-05
Abstract: The invention comprises (1) a process for the preparation of compounds of the formula: <FORM:0956691/C2/1> (where R is hydrogen or methyl and n is 1 or 2, and which may additionally contain alkyl, alkenyl or aryl groups each containing at most 7 carbon atoms, other than at C-3, an oxo group at C-11, hydroxy, acyloxy or alkoxy groups other than at C-1, -2, -3, -4, -6, -7 and -19, and unsaturated linkages, other than D 1 and D 6) which comprises converting the corresponding D 4-3-ketone into its hydrazone or semicarbazone and reacting with an alkali metal hydroxide in the presence of an alcohol or of an alkali metal alkoxide; (2) compounds of the formula: <FORM:0956691/C2/2> (wherein R and n have the meanings given above, and R1 is an alkyl, alkenyl or aryl group containing at most 7 carbon atoms, or when R is hydrogen or 10a -methyl, R1 may also be hydrogen, and which may also contain alkyl or alkenyl groups of at most 3 carbon atoms, other than at C-3, hydroxy or alkoxy groups other than at C-1, -2, -3, -4, -6, -7 and -19, an oxo group at C-11, and unsaturated linkages other than D 1 and D 6); and (3) the specific steroids 2a -methyl-androst-3-en-17b -ol; androst-3-ene-11a , 17b -diol; 17b -hydroxy-androst-3-en-11-one; androsta-3, 9(11)-dien-17b -ol and androst-3-ene-16a , 17b -diol. The process of the invention generally leads to the formation of a mixture of the 5a - and 5b -D 3-derivatives which may be separated by crystallization or chromatography. The products are of the androstane, retroandrostane, 19-norandrostane and D-homoandrostane series.  Examples are given.
Patent GB-917521-A (GB)
Title: Improvements in and relating to vibration isolators
Inventor: GOODWIN AUBREY JOHN HUTCHINSON
IPC: F16F15/023
Filed: 1957-11-19
Abstract: 917,521. Shaft couplings. YARROW & CO. Ltd. Feb. 19, 1959 [Nov. 19, 1957], No. 36044/57. Class 80 (2). [Also in Group XXXII] A rotary coupling for attenuating periodic torque variations comprises two sets of flexible bellows 12, 12a mounted between adjacent pairs of vanes 69, 70. Vanes 69 are attached to a shaft 63 and vanes 70 are attached to a shaft 66. The bellows 12 are connected to a fluid vessel 13 by ducts 14, whilst bellows 12a are connected to a vessel 13a by ducts 14a. The bellows 12 are also connected to a circular groove 71 by ducts 72, the bellows 12a being connected to a groove 71a by ducts 72a. The bellows 12, 12a, grooves 71, 71a, and the ducts 72, 72a are filled with a liquid, cavities 13, 13a being gas-filled. The invention is applicable to ships' propeller shafts and diesel engine output shafts. The Specification also describes vibration dampers (see Group XXXII). A further construction of rotary coupling is described and illustrated in the Provisional Specification.
Patent GB-444976-A (GB)
Title: Improvements in or relating to sash locks and holders
IPC: E05C17/54
Filed: 1934-12-17
Abstract: 444,976. Sash locks and holders. JONES, D., 294, Somerset Street West, Ottawa, Canada. Dec. 17, 1934, No. 36091. [Class 44] A device for use either as a window sash lock or holder comprises a length of spring wire bent and hammered to the form shown in Fig. 1 or Fig. 4. For use as a window holder limbs 15, 16 are pressed together and the flattened parts 11 are inserted between the window and the frame as shown in Fig. 3, the pointed ends 18 of the wire engaging the window frame. For use as a lock the device is inverted and placed at the top of the sash.
Patent GB-1407475-A (GB)
Title: Circuit arrangement for analogue-digital conversion of magnitudes or signals in electrical form
IPC: H03M1/56
Filed: 1972-08-02
Abstract: 1407475 A/D converters NORMA MESSTECHNIK GmbH 2 Aug 1972 [3 Aug 1971] 36091/72 Heading H3H Apparatus for converting an analog electrical signal, e.g. from a mechanical transducer, to a digital value representing the mean value of the input over a period T, comprises a comparator having inputs connected with the signal to be converted and with the output from either a sawtooth generator of a stochastic generator, the comparator being adapted to supply a binary "1" output at all times the input signal is greater than the generator signal, which binary output is taken to a gate whereby clock pulses are applied to a counter, the count at the end of time T representing the probability that the unknown input is greater than the generator output at any clock pulse instant, which may be shown to be proportional to the mean value of the unknown signal in the time T in the case where the generator output is a sawtooth or a stochastic signal having a distribution function of amplitude values equal to a constant, or in the event that this distribution function is equal to f(x), the mean value of the inverse function f<SP>-1</SP>(x) for the values taken by the analog input signal. Means are disclosed for deriving the square root of the product of mean values of two signals Y 1 , Y 2  which comprise two converters of the type described above to provide two pulse trains indicative of mean values of the two signals, which pulse trains are combined in an exclusive-OR gate and the resulting pulses are counted. This count obtained is D/A converted and the analog voltage applied to one input of a comparator the other input of which is derived from a similar chain of apparatus, the output (difference signal) of the comparator being taken as analog input to this second chain. The required pulse track is one provided by one of the A/D converters in this second chain i.e. prior to combination in the respective EX-OR gate, which pulse chain is taken to an output counter. A modification whereby the quotient of the mean values of two input signals may be found is also described.
Patent GB-1525083-A (GB)
Title: Domestic electric juice squeezer
IPC: A47J19/02
Filed: 1976-09-01
Abstract: 1525083 Citrus fruit squeezer SEB SA 1 Sept 1976 [11 Sept 1975] 36172/76 Heading A4C A citrus fruit squeezer has an electric motor 1 housed in a cylindrical casing 8 and rotating a cone 25 via a shaft 13, and step-down gearing 19, 21, 22 surmounted by a domed cover 7 for the casing, and wherein at the medial plane of the casing there is provided an integral grid 43 for straining the juice and which extends to a start 42 of an outer housing formed of a flange 45 attached to the start and a separable semi-cylindrical part 46 which when the squeezer is in use engages with casing 8. Ribs 48 locate part 46 with flange 45 and with slots 51 in casing 8, and the part 46 has a dished flat portion 47 used as a base and provided with a non-slip rim 52. In use the cone is pressed down so that its shaft 24 located in a bearing 29 in the cover 7 moves to contact a piston 33 and close a pair of contacts to energize the motor. A second larger cone may be non-rotatably located on cone 25 to accommodate large fruit. A scrapper arm 56 co-operates with grid 43 to move solid matter and the grid is outwardly and downwardly sloping formed with slots 44 and projections 49. The part 46 forms a collecting receptacle for the juice.
Patent GB-1510856-A (GB)
Title: Manufacture of formaldehyde
IPC: C07B61/00
Filed: 1975-09-03
Abstract: 1510856 Formaldehyde BASF AG 3 Sept 1975 [4 Sept 1974] 36221/75 Heading C2C In a process for the manufacture of formaldehyde by oxidative dehydrogenation of methanol in the presence of a silver catalyst, at an elevated temperature, (a) a gaseous starting mixtue of methanol and steam, containing from 0À1 to 0À7 mole of water per mole of methanol, is passed through the catalyst, heated to from 250 to 450 C., at a throughput of from 0À04 to 1À0 tonne of methanol per square meter of catalyst bed cross-section per hour, thereafter, (b) air corresponding to from 0À3 to 0À6 mole of oxygen per mole of methanol is added to the starting mixture at the above temperature, and the reaction over the catalyst is started, (c) at a point in time within the period from before the reaction starts to 0À5 hour after the start of the reaction, an off-gas taken from the manufacture of formaldehyde by oxidative dehydrogenation of methanol and containing from 0À25 to 1À0% by volume of carbon monoxide, from 3À5 to 10% by volume of carbon dioxide, from 10 to 25% by volume of hydrogen and from 0À02 to 0À1% by volume of formaldehyde vapour, is admixed with the starting mixture, in an amount of from 90 to 3500% by weight of offgas, based on methanol, thereafter, (d) the throughput of gaseous mixture fed to the catalyst, and the reaction temperature, are both increased, and, finally, (e) the reaction is carried out at from 550 to 800 C., at a throughput of from 1 to 3 tonnes of methanol per square meter of catalyst bed cross-section per hour, using from 0À2 to 0À7 mole of steam and from 0À3 to 0À8 mole of oxygen in the form of air per mole of methanol, and from 90 to 180% by weight of off-gas, based on methanol.
Patent GB-326487-A (GB)
Title: Improvements in organic intermediate compounds and dyestuffs
IPC: C09B5/10
Filed: 1928-12-08
Abstract: 326,487. Marks, Sir G. C., (Du Pont de Nemours & Co., E. I.). Dec. 8, 1928. 1 : 9 - Anthrathiazole-2-carboxylic chloride is made by heating 1 - chloranthraquinone-2-carboxylic acid with alkaline polysulphide and ammonia, and converting the resulting 1 : 9- anthrathiazole-2-carboxylic acid into the chloride, for example by means of thionyl chloride or phosphorus pentachloride. An example is given. Vat dyes, dyeing in yellow to orange shades, are obtained by condensing the above 1 : 9-anthrathiazole - 2 - carboxylic chloride with aminoanthraquinones or their derivatives, including mercapto, benzoylamino, and halogen derivatives. The condensation may be effected by heating in nitrobenzene. In examples, the chloride is condensed with 1- and 2-aminoanthraquinones, monobenzoyl- 1 : 5-diaminoanthraquinone, 1 - amino - 6 - chloranthraquinone, and 1-mercapto-2-aminoanthraquinone in molecular proportions, and with 1 : 4- and 1 : 5-diaminoanthraquinones, one molecular proportion of the latter being condensed with two molecular proportions of the chloride. In a further example, the chloride is condensed with 1 : 5- diaminoanthraquinone in molecular proportions and the product is benzoylated by treating with benzoyl chloride.
Patent GB-1019293-A (GB)
Title: Process for improving the quality of sinter
IPC: C22B1/20
Filed: 1962-09-24
Abstract: In a process for sintering a mixture of fine grained iron ore, fuel and return material the finished sinter, after removal by screening of fines for return, is given a destructive mechanical treatment controlled to produce, after screening, a further amount of return sufficient to bring the total return to 30-150% of the raw material. Cooled and broken sinter 1 is screened at 2 to provide fines for return 5 and sinter production 6 which, by means of conveyors 7, 8, 9 of progressively increasing speed, is hurled against vertical plate 10 e.g. of austenitic manganese steel with a horizontal velocity component of at least 5 metres per second. The reduced proportion 11 passing through screen 12 e.g. of 8 mm. aperture constitutes the rest of the return, and the larger sizes are removed as production. <PICT:1019293/C1/1>