baber/WOPTO huggingface dataset:
Patent GB-531123-A (GB)
Title: Improvements relating to the insulation of electric conductors
IPC: C23C22/78
Filed: 1939-07-12
Abstract: 531,123. Cables. BRITISH THOMSONHOUSTON CO., Ltd., and NEWBOUND, R. July 12, 1939, No. 20317. [Class 36] A metallic conductor coated with a layer of iron, zinc or cadmium &c. is provided with a heat-resistant insulating layer of phosphate converted from the surface of the layer. Specification 393,070 is referred to.
Patent GB-831162-A (GB)
Title: Process for the production of a separating agent for foundry moulds and cores
Inventor: CIBULA GERHARD
IPC: B22C3/00
Filed: 1957-06-27
Abstract: A separating agent for foundry moulds and cores is prepared by forming a stable water-in-oil emulsion of a refined mineral oil fraction which burns without leaving a residue and an aqueous solution of inorganic salts is incorporated in the emulsion to produce a composition containing by weight 51.5% water, 40% of the oil, 4% sodium chloride, 2% ammonium sulphate, 2% aluminium sulphate and 0.5% of a non-ionic emulsifier.  The oil is preferably one boiling in the range 250-350 DEG  C. at 20 tons and is emulsified with a chemically inactive water-in-oil emulsifier which burns without leaving a residue.  The emulsion may be stabilized by homogenizing simultaneously with the incorporation of an aqueous solution of the aqueous solution.
Patent GB-857710-A (GB)
Title: Improvements in or relating to indicators of variable values
Inventor: BLAZEY SIDNEY HENRY
IPC: G01F23/24
Filed: 1958-06-25
Abstract: 857,710. Resistance measurement: thermal meters. GENERAL MOTORS Ltd. June 10, 1959 [June 25, 1958], No. 20362/58. Class 37 In a circuit arrangement for a thermo-responsive indicator 15, Fig. 2, a resistance 19 which is variable in accordance with a value to be indicated is arranged to vary the proportion of the current passing through the element, and the total current to the circuit is maintained substantially constant by a barretter 18. An improved circuit including additional series and shunt resistors to improve the current stabilising action of the barretter and to produce a substantially linear response is described with reference to Fig. 3 (not shown). The arrangement is stated to be particularly suitable for a vehicle fuel gauge, and a modification for use as a temperature gauge is described with reference to Fig. 4 (not shown). The indicator, Fig. 1, comprises a U-shaped thermo-responsive device 5 having flat arms 4, 7 and a rigid " L " section base 6, the arm 4 being attached to the meter wall. Heater coil 15 is wound around the arm 7 the end of which is bent over to pass through a slot in an indicator 10, and a " vee " shaped hook 12 on an arm 11 passing through the same slot is carried by an arm 14 which is pivoted to provide for zero adjustment. The arm 4 provides for changes in ambient temperature.
Patent GB-1341103-A (GB)
Title: Rotors and their manufacture
IPC: F01D5/06
Filed: 1971-04-19
Abstract: 1341103 Assembling rotors GENERAL ELECTRIC CO 19 April 1971 [30 April 1970] 20367/71 Heading B3A [Also in Divisions F1 and F2] A pair of rotor discs 26, e.g. axial flow gas turbine engine compressor or turbine discs, are connected by a plurality of bolts passing through holes 54, 56 in integral inwardly extending flanges 50, 52. The tolerances on the diameters of the bolt body 58 and the holes 54, 56 and the radii r 1 , r 2  of the hole axes from the respective disc axes are such that, with r 1  at the tolerance minimum and r 2  at the tolerance maximum, r 1  is greater than r 2  by a distance at least equal to the sum of the maximum clearances between the bolt body 58 and the holes 54, 56. Therefore the bolt body 58 will always engage the outer surface of the hole 54 and the inner surface of the hole 56 to prevent relative movement of the flanges 50, 52. The flanges are scalloped between the holes 54, 56 to approximately the depth of outer surfaces of the holes.
Patent GB-830982-A (GB)
Title: Improvements in jet-propulsion units with two or more coaxial motive flows
Inventor: LOGEROT RENE PAUL
IPC: F02K7/16
Filed: 1957-06-27
Abstract: 830,982. Jet-propulsion plant. SOC. NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. June 27, 1957 [July 11, 1956], No. 20369/57. Class 110 (3). [Also in Group XXXIII] A jet-propulsion engine having two coaxial flows each contributing to the production of thrust coinprising an inner casing ending with an outlet and an outer casing ending with an exhaust orifice downstream of the inner casing outlet, has means at the outlet of the engine adapted to deflect at least a portion of the inner flow into the outer flow upstream of the exhaust orifice. A by-pass for gas-turbine engine has a low-pressure compressor 1 driven by a turbine wheel 3 which rotates independently of a second turbine wheel 4 which drives a high-pressure compressor 6. The exhaust from the turbines 3, 4 passes through a channel 9. An outer cowling 10, coupled to the inner cowling 7 by radial arms 11, forms an annular conduit 12 for the by-pass air. Fuel is supplied and burnt in the by-pass air by injectors 14. The fuel supply to the injectors 14 is controlled either to maintain the speed of the shaft 2 or the ratio between the air flows in the main duct and the by-pass duct constant or both. The main flow through the channel 9 is controlled by regulating the supply of air by a valve 18 to an annular slot 15. Two cylindrical pivoted segments 19, 20 are also provided to control the main flow. When the shutters 19, 20 are in the position shown, a part 25 of the main flow flows along the engine axis and a part 24 is deflected laterally towards the edge 22 and blade grid 23. When the segments contact each other all the main flow is deflected. The deflected portion 24 exercises a constrictive effect on the secondary flow passing through the conduit 12. The control of the valve 18 may be associated with that of the segments 19, 20 so as to control the outlet areas of both of the flows to obtain the most efficient operation. The slot 15 may be replaced by a number of slots each having its own supply of fluid and control valve and the segments 19, 20 may be adjusted independently. In this case the main flow may be deflected by controlling the supply valves individually. The asymmetrical control of the segments 19, 20 will cause the secondary flow to be deflected. The invention may also be applied to a ram-jet unit having a turbo-jet unit mounted inside.
Patent GB-597071-A (GB)
Title: Improvements in or relating to process for preparing steroidal hormones
IPC: C07J5/00
Filed: 1945-08-08
Abstract: Steroid derivatives having at ring D the structure <FORM:0597071/IV/1> are obtained by treating with zinc, magnesium or aluminium in the presence of weakly alkaline or weakly acidic compounds capable of generating nascent hydrogen, e.g. aqueous alcoholic alkali bicarbonate solution or a lower fatty acid such as acetic acid, especially in the presence of halide ion, a steroid ester having at ring D the structure <FORM:0597071/IV/2> such as compounds obtained by the mild oxidation of the so-called "pseudo-" sapogenins, e.g. pseudo-sarsasapogenin or its lower aliphatic carboxylic acid acyl derivatives, pseudo-diosgenin or its acyl derivatives, pseudo-diosgenone or other 3-ketonic sapogenin; or 16-acyloxy-20-keto-pregnane derivatives obtained by the oxidation of certain oxygenated sapogenins, e.g. kappogenin. In examples (1) and (2), pseudo-diosgenin diacetate is oxidized by means of chromium trioxide in glacial acetic acid and the product reduced with (1) zinc bromide and zinc dust in acetic acid; (2) zinc and potassium bicarbonate to produce D 5-pregnen-3b -ol-20-one acetate; (3) pseudo-diosgenone-3 is oxidized by means of chromium trioxide in glacial acetic acid and the product reduced with zinc chloride, zinc and acetic acid to produce progesterone; (4) kappogenin in glacial acetic acid is treated with bromine, oxidized with chromium trioxide and reduced by means of zinc dust to obtain progesterone.
Patent GB-1202945-A (GB)
Title: Polyester compositions
Inventor: DEIS WILLIAM HENRY
IPC: C08K3/22
Filed: 1968-04-30
Abstract: 1,202,945. Unsaturated polyester compositions. MERCK & CO. Inc. 30 April, 1968 [2 May, 1967], No. 20388/68. Heading C3P. A polymerizable resin composition stabilized against degradation during storage comprises (A) an unsaturated polyester of (1) an alcohol having two or more hydroxy groups and (2) an α,#-ethylenically unsaturated carboxylic acid having two or more carboxy groups, or an anhydride thereof, and a polymerizable monomer containing terminal ethylenic unsaturation, and (B) from 0À1 to 1% by weight, based on the weight of the resin composition, of magnesium oxide as sole stabilizer, the composition comprising no catalyst and no monocarboxylic acid. In the examples the polyesters are prepared from phthalic anhydride, maleic anhydride, propylene glycol, glycol and maleic or fumaric acid and the monomer is styrene.
Patent GB-895539-A (GB)
Title: Improvements in the oxidation of hydrogen sulphide
Inventor: FUCHS WERNER
IPC: C01B17/05
Filed: 1960-06-10
Abstract: Oxidation of hydrogen sulphide to sulphur with oxygen or sulphur dioxide or gases containing them at a temperature between -20 DEG C. and +150 DEG C. and a pressure of 0,5-50 atmospheres is effected in the presence of at least one compound which is liquid under reaction conditions and has the general formula <FORM:0895539/III/1> in which R1, R2 and R3 represent hydrogen atoms or alkyl, cycloalkyl, hydroxyalkyl, aminoalkyl or phenyl radicals which may be substituted by alkyl groups, at least one of the radicals R2 or R3 being an organic radical, or in which any two of R1, R2 and R3 may together represent or polymethylene radicals (CH2)n, possibly substituted, which form common members of a heterocyclic ring containing the amide nitrogen atom, which ring may also contain a further nitrogen, or an oxygen or sulphur atom.  The compound of the general formula above may be used in the presence of a miscible liquid.  Compounds of this formula include N-alkyl substituted amides of open-chain saturated carboxylic acids with 1-4 carbon atoms, e.g. N-methylformamide, N:N-dimethylformamide, N:N-diethylformamide, N:N-dibutylformamide, N-methylacetamide, N:N-dimethylacetamide, N:N-diethylacetamide, N-methyl-butyric acid amide and N-butylacetamide.  Other compounds of the given general formula mentioned are those in which the polymethylene radicals (CH2)n may be interrupted by an oxygen or sulphur atom and n has the value 3-5, which with the nitrogen atom of the -CO.N- group form a heterocyclic ring, and which may also contain a further hetero atom, e.g. 0 or 5.  Specified examples of such compounds are N-formyl piperidine, N-acetyl piperidine, N-butyl piperidine and the morpholines, thiomorpholines and pyrrolidines N-substituted by the formyl, acetyl, propionyl or butyryl radical. The compounds of the general formula may be used in admixture with each other or admixed with miscible liquids such as water or saturated monohydric and polyhydric aliphatic alcohols, e.g. alkanols with 1-4 carbon atoms, and also diethylene glycol, triethylene glycol and glycol monomethyl ether.  The hydrogen sulphide to be oxidized may be contained in Claus contact furnace waste, natural gas, cracking gas, water gas, converter or producer gas, brown coal low temperature carbonisation gas, shale oil low temperature carbonisation gas and waste gases from viscoserayon factories. Apparatus suitable for effecting the oxidation includes the packed tower or bubble cap column arrangements known per se to ensure intimate contact between gases and liquids. Alternatively carrier substances such as active carbon, pumice or kieselguhr may be impregnated with the liquid of the given general formula and gases containing hydrogen sulphide and oxygen and/or sulphur dioxide may be passed thereover.  The oxidation may be carried out continuously or intermittently.  Examples are given.
Patent GB-221332-A (GB)
Title: Clutch and control mechanism for cloth folding, lapping, measuring, and such like machines
IPC: B65H18/02
Filed: 1923-08-11
Abstract: 221,332. Taylor, L. Aug. 11, 1923. Winding, rolling, &c. machines. - Means for controlling the driving'of cloth rolling, lapping, doubling and measuring, and like machines by which cloth is wound on lapping-boards consists of clutch driving-mechanism wherein a double clutch arrangement is employed consisting of double clutch elements a<1>, a<3> working a driving- clutch element a and a braking-element a<4>, manually controlled gear d, d<2>, b being provided to effect the driving; to put the clutch into neutral position, to turn the roll back to correct faulty winding; and to stop the machine. The clutch elements a<1>, a<3> are slidable on the shaft, the driving-pulley a being loose. A spring d<4> is provided to hold the clutch and brake elements a<3>, a<4> normally in engagement, or the driving-elements may be normally in engagement.
Patent GB-327920-A (GB)
Title: Improvements in weighing and counting machines
IPC: G01G1/26
Filed: 1929-07-04
Abstract: 327,920. Fairbanks & Co., E. & T., and Paulson, W. B. July 4, 1929. Counting by weighing.-Consists in securing to the usual steelyard 12 a graduated holder 30 adapted to support a sample of the articles to be counted, and in replacing the usual hanger by a pan 17 for receiving further samples. The weights of the holder 30, the pan 17, and their attachments are chosen so as to have the same effect as the removed hanger in order that the apparatus may still be used for normal weighing. The attaching means at the fulcrum end of the holder 30 comprise a bar 25 and two bolts 23, 24, the bolt 23 being used to force apart the bar 25 and the vertical holder-support 19, whilst the bolt 24 clamps them on the steelyard. In using the apparatus, an empty receptacle is placed on the platform 11 and balanced by the poise 16. The articles to be counted are placed in the receptacle, and equilibrium is restored by adding some of the articles to the pan 17 and by sliding one of the articles along the graduated holder 30; if, as in the apparatus shown, the leverage between the platform 11 and pan 17 is 100 : 1, the number of articles in the pan 17 represents the number of hundreds on the platform and the remainder are given on the graduations 30, to which total must be added, in order to obtain the total count, the number of articles in the pan 17 and the single article on the holder.
Patent GB-813547-A (GB)
Title: Improvements in or relating to methods of forming a junction in a semiconductor
Inventor: KNOTT RALPH DAVID
IPC: H01L21/00
Filed: 1956-07-02
Abstract: 813,547. Semi-conductor devices. GENERAL ELECTRIC CO. Ltd. July 2, 1957 [July 2, 1956], No. 20497/56. Class 37. In forming a junction in a semi-conductor by the method in which a molten material, containing both the semi-conductor and the required impurity and in contact with a surface of a solid body of the semi-conductor is solidified, the solid body is arranged to float on the molten material so that a substantially flat surface on the body lies in a horizontal plane and is wholly in contact with the molten material. In the embodiment shown a germanium plate 4 rests on indium 3 contained in a nickel dish 1 supported by a solder washer 6 on the copper envelope 7. A gold-antimony alloy ring 8 surrounds an indium bead 5 on the top surface of the plate 4. On heating the whole assembly to 550‹ C. in an atmosphere of pure dry hydrogen the ring 8 is soldered to the plate 4 to form a base connection, the plate 1 is soldered to the envelope 7, the germanium plate 4 floats on the indium 1 and on cooling junctions are formed between that plate and the indium bead 5 and indium 3 Specifications 774,800 and 785,467 are referred to.
Patent GB-519015-A (GB)
Title: Improvements in and relating to electron tubes
IPC: H01J29/02
Filed: 1938-07-11
Abstract: 519,015. Cathode-ray tubes. BRITISH THOMSON-HOUSTON CO., Ltd. July 11, 1938, No. 20500. Convention date, July 10, 1937. [Class 39 (i)] In cathode-ray tubes and electron microscopes using an electron-optical lens for controlling the electron flow, the lens includes a silver or other metal foil F<1> permeable to electrons having a velocity corresponding to less than 50 volts, the accelerating voltage at the electrode being restricted to less than this voltage. The foil is straight or it is curved to form a convergent lens with the Cylinder E1 ; a second foil F2 may be placed across the aperture in the second.cylinder E2. In a further arrangement the foil F, Fig. 3, is carried by the middle of three electrodes forming a divergent lens which with the convergent lens formed by the cylinders E1, E2, gives chromatic correction. The foil may divide the tube into two separate chambers, one with the electron gun having a gaseous filling, the other with deflecting plates and luminous screen being highly evacuated ; a further foil may separate the two pairs of deflecting plates. The foil may be supported by a foraminated carrier which may be spherical. The Specification as open to inspection under Sect. 91 also describes a photo cell wherein the cathode is a coating on the envelope wall and a foil is used to cover the cathode or to form a septum separating the cathode from the anode. This matter does not appear in the Specification as accepted.
Patent GB-802864-A (GB)
Title: Improvements in or relating to cabinets for medical purposes
IPC: A61H33/06
Filed: 1957-06-28
Abstract: A heating chamber has fixed front and side walls and top and the rear is closed by a door through which the patient's chair can be wheeled. The floor and door are provided with electrical heaters and a removable panel in the top has a guideway for a smaller panel which is slid forward to close the top except for an aperture which receives the patient's neck.  Means are provided inside the cabinet by which the patient can control certain heaters and can open the door to release himself.
Patent GB-441021-A (GB)
Title: A new or improved device for use with gas cookers, gas rings or the like to enable aplurality of vessels to be heated by one burner
IPC: F24C15/10
Filed: 1934-07-13
Abstract: 441,021. Heatdistributers for gas stoves. MAJOR, W. G., 102, School Road, Moseley, Birmingham. July 13, 1934, No. 20519. [Class 126] In a hollow box with an opening 5 in the bottom to be placed over a gas burner and two or more openings 4 in the top over which are placed vessels to be heated, one vessel being directly heated by the burner, the openings 4 are such that the vessels completely cover and seal them, and one or more separate outlets 6 for the escape of the hot gases are provided, e.g. in the end walls of the box. The box may have legs. Dimensions are given in the Provisional Specification.
Patent GB-201757-A (GB)
Title: Improvements in or relating to beating or refining apparatus for paper mills
IPC: G05D23/12
Filed: 1922-07-27
Abstract: 201,757. Happer, J. R., Gregor, D., Russell, R., and Russell, D. July 27, 1922. Pulping-engines.-In a pulp beating or refining apparatus, a heat exchanging device is provided in the circulating system, either as a fluid jacket 1<c> for the pump or as a jacket for the pipe line.
Patent GB-409537-A (GB)
Title: Improvements in and relating to the production of carrierless films from gelatine or other film forming colloids
IPC: B29C48/08
Filed: 1933-07-21
Abstract: A film of gelatin, glue, vegetable gums &c. for use in carrierless condition, for example in the production of photographic relief images, is formed upon thin metal foil, as of aluminium or zinc, which is readily stripped before using the film.  The film material, to which may be added a sensitizer such as bichromate, or silver bromide, &c., may be cast upon the foil in sheet or band form, and the foil may be reinforced during the casting operation by a smooth rigid support such as a glass or metal sheet, a glass cylinder, or metal band, upon which the foil may be pressed as by a rubber roller. A number of foils may be attached to such a support as by pressing with a frame, or by glued-on strips, the frames or the strips serving as mould margins for the casting solution.  To assist setting, the support may be cooled, or the film may be conducted through a cool indifferent liquid such as carbon tetrachloride.  Thick films, e.g. 0.1 to 0.6 mm., may be so produced.  Reference is made to similar casting processes in which the film either remains on the foil or is stripped therefrom; and also to the addition of materials such as lecithin in the production of thin films to prevent troublesome adherence to the usual casting supports.
Patent GB-730476-A (GB)
Title: Improvements in or relating to polymeric substances
Inventor: CHARLESBY ARTHUR
IPC: C08J9/34
Filed: 1952-08-15
Abstract: Cellular bodies, e.g. rods or cable dielectrics, are made by subjecting polymeric methacrylates, e.g. polymethyl methacrylate, having a softening point above 40 DEG  C., at a temperature below the softening point to a dose of penetrating ionising radiation sufficient to cause substantial depolymerization but insufficient to produce any visible effect other than colour change and then heating at a temperature above the softening point to effect expansion.  A suitable radiation source is a nuclear reactor, preferably an artificial radioactive gammaemitting isotope such as cobalt 60.  A suitable dose is at least 5 X 106 Roentgens to reduce the average molecular weight to between 3 X 105 and 104, followed by heating at 0 DEG  to 10 DEG  C. above the softening point.  A plasticizer such as dibutyl phthalate may be present and the treatment may be carried out in a mould.
Patent GB-320855-A (GB)
Title: Improvements in or relating to laminated springs
IPC: B60G11/02
Filed: 1928-07-17
Abstract: 320,855. Atherton, E. W. July 17, 1928. Laminated springs.-Some of the leaves are initially stressed so that as the load increases, the leaves become operative in succession. In the example, shown applied to a vehicle a channelsection framework G clamped to the spring seat is provided at its end with notches, on the underside of which engage pegs secured to the ends of the leaves B, C, D'. These leaves and also the short leaves D<2>, D<3> are held out of action when the vehicle is lightly loaded and are engaged in succession when the load is too great for the upper leaves A<1>, A<2>, A<3>. A helical spring S, which supplements the laminated spring, is in tension under light loads and in compression under heavy loads.
Patent GB-148868-A (GB)
Title: Shed for aircraft
IPC: E04B1/346
Filed: 1920-07-10
Abstract: 148,868. Tuchscherer, C. July 6, 1917, [Convention date]. No Patent granted (Sealing fee not paid). Shelters for housing aircraft.-Sheds for aircraft are constructed with turn-tables c, c<11> having the axes mounted in the side posts a', a<11> of the door openings. In the case of hydroplanes, rotatable pontoons &c. are used as turning-devices.
Patent GB-1194669-A (GB)
Title: Vacuum Lifting Gear Having Automatic Reversal Devices
IPC: F16H31/00
Filed: 1969-04-23
Abstract: 1,194,669. Suction lifting devices. VACULIFT MASCHINENBAU G.m.b.H. 23 April, 1969 [26 April, 1968], No. 20686/69. Addition to 1,129,348. Heading B8H. The vacuum lifting device of Specification 1,129,348 is provided with an improved sleeve for operating a valve switching cylinder 41 to which a valve plate 43 is attached. The sleeve has upper and lower gear rings 40a, 40b respectively, the upper ring having tooth gaps which are alternately deep and shallow. When the cylinder 41 is raised from the position shown a lower pin 42b abuts one of the lower teeth and turns the sleeve anti-clockwise. Subsequent lowering of the cylinder causes further rotation in the same direction when an upper pin 42a hits one of the upper teeth. Thus, the pin 42a comes to rest alternately in shallow and deep tooth gaps thereby alternately opening and closing the valve plate 43.