baber/WOPTO huggingface dataset:
Patent GB-824799-A (GB)
Title: Constant-attenuation electric cable
IPC: H01B11/18
Filed: 1957-03-22
Abstract: 824,799. High frequency coaxial cables. STANDARD TELEPHONES & CABLES Ltd. March 22, 1957 [March 23, 1956], No. 9509/57. Class 36. A coaxial cable having constant attenuation over a wide frequency band comprises a dielectric core, an inner conductor consisting of two insulating tapes each carrying a thin layer of metal on one surface, a layer of dielectric and an outer conductor similar to the inner conductor. The coaxial conductors each consist of two tapes wound helically in opposite directions and with their metal carrying surfaces in contact with one another. The wall thicknesses of the conductors should not exceed the depth of penetration of the current at the highest frequency transmitted. The inner core may be a synthetic plastic, preferably polythene, extruded about a fibreglass cord, and the dielectric layer may also be polythene or similar synthetic resin. The insulating tapes are preferably a polymeric reaction product of ethylene glycol and terephthalic acid, the metallic coating being of silver, copper or aluminium.
Patent GB-996952-A (GB)
Title: Piezoresistive semiconductor strain gauges
IPC: H01L29/84
Filed: 1962-03-13
Abstract: 996, 952. Strain gauges. WESTERN ELECTRIC CO. Ltd. March 13, 1962 [March 17, 1961], No. 9510/62. Heading G1N. [Also in Division H1] A strain gauge consists of a piezoresistive semi-conductor crystal and means for measuring the piezoresistive change in one direction, the crystal having a piezoresistive coefficient transverse to that direction which is within 10% of the coefficient in that direction, and a shear coefficient in that direction which is substantially zero, so that measurements are independent of the orientation of the gauge. In a first embodiment an n-type silicon crystal, in the form of a single straight strip, is bonded to a steel member to be stressed and has electrodes at each end for connection in a bridge circuit. The crystal is orientated with the [110] and [110] directions parallel to the length and width, respectively. In a second arrangement (Fig. 2) two normally-disposed strips 20, 21 are provided. In this case the longitudinal shear coefficient of the strips are within 10% of each other and opposite in sign so that the shear coefficient of the gauge as a whole is substantially zero. The longitudinal and transverse coefficients of the strips are also within 10% of each other. A single L-shaped crystal may have electrodes 22, 23 at each end, as shown, or two separate strips each having a pair of electrodes may be provided. Suitable materials, when the plane of the gauge is (001) are n-type silicon and oxygen-deficient titanium dioxide, the arms lying in the [100] and [010] directions, or the [110] and [110] directions. For a gauge in the (111) plane in the [100] and [010] directions, or the [110] and [110] directions. For a gauge in the (111) plane suitable materials are p-type silicon, n-type germanium, p-type germanium, p-type lead telluride; p-type indium antimonide, or n-type indium antimonide. The arms then lie in the [110] and [112] directions. The gauge measures the sum of the principle stresses irrespective of orientation.
Patent GB-1032700-A (GB)
Title: Recovery of potassium chloride
Inventor: EDMONDS BYRON PRIESTLY
IPC: E21B43/28
Filed: 1964-08-20
Abstract: 1,032,700. Solution mining. PITTSBURGH PLATE GLASS CO. Aug. 20, 1964, No. 9605/65. Divided out of 1,021,443. Heading E1F. In a process similar to that of Specification 1,021,443, potassium chloride is recovered from a deposit containing sodium chloride and potassium chloride by establishing a cavity within the lower part of the deposit, introducing water on an aqueous solution of potassium chloride and/or sodium chloride, and a waterimmiscible liquid having a density higher than that of water to the cavity, withdrawing brine and raising the roof of the cavity. The waterimmiscible liquid may be a halogenated hydrocarbon, e.g. perchlorethylene or trichlorethylene or a rubber latex emulsion. A pair of bore-holes may be established in communication with a single cavity.
Patent GB-498736-A (GB)
Title: Improved method of and apparatus for effecting diffusion combustion of fluid fuels
IPC: F23D11/00
Filed: 1937-04-05
Abstract: 498,736. Liquid and gaseous fuel furnaces. STEVENS, A. H. (General Furnaces Corporation) April 5, 1937, No. 9645. [Class 51 (i)] Combustion of liquid or gaseous fuel is effected in a combustion chamber, preferably of cylindrical form by forming a free spiral vortex of combustion supporting air which moves in a helical path throughout the length of the combustion chamber and introducing the fuel into the central zone of the vortex, combustion of the fuel being maintained after ignition throughout the length of the combustion chamber at the boundary of the fuel and the vortex of air. As shown in Figs. 1 and 2, air under pressure is introduced from a conduit 7 into a spiral casing 6 under control of an adjustable vane 8 which varies the diameter of the central zone of the vortex into which fuel is introduced by a burner 13. Combustion is effected in the boiler flue 2 and the gases are discharged at C which may be in the form of a spiral casing. In the modification shown in Figs. 3 and 5, the spiral vortex of air is formed by vanes 8a pivoted at 9 and gas is introduced to the central zone of the vortex in a whirling stream by emitting the gas through pipes 12 tangentially arranged to a chamber at the front of the air supply casing. If desired, the gas may be supplied axially to the central zone of the vortex. Reference has been directed by the Comptroller to Specifications 17283/03, [Class 50], 183,394, 255,080, 275,793, [all in Class 51 (i)], 374,031, and 446,854.
Patent GB-615463-A (GB)
Title: Fastening devices for strap ends or for securing articles to garment pockets
IPC: B43K23/00
Filed: 1946-03-28
Abstract: 615,463. Fastenings. BJORKSTROM, B. March 28, 1946, No. 9651. Convention date, Aug. 23, 1945. [Class 44] [Also in Group VII] A fastening device, for strap ends or for attaching a pen or pencil to a pocket, comprising a plate with two tongues, the outer ends of which are bent out laterally from the plate to engage holes or recesses in the article to be secured, is characterised in that the tongues project in opposite directions, one being relatively resilient and the other substantially rigid. Fig. 6 shows the device when used as a buckle. A rectangular plate 1, having its edges 7 bent up, is provided with an integral, resilient tongue 2, the end of which is bent up in the same direction as the edges 7, and a shorter, relatively rigid tongue 6 projecting from the lower edge of the plate and having its end similarly bent up, but inclined away from the resilient tongue. One end of a strap is attached to the rear side of the buckle by riveting or the like through holes 5. To fasten, the resilient tongue 2 is inserted in a hole in the free end of the strap, then the strap is pulled so that this tongue is bent slightly, whereupon the tongue 6 can be engaged in an adjacent hole. Disengagement is effected by pulling the strap angularly away from the plane of the plate 1. In a modification, Fig. 19, the resilient tongue 27 is of wire, its ends being inserted into sleeves formed by bent-up edge portions 71 extending along part of the longitudinal edges of the plate 31, and its outer portion being bent out from the plate. Fig. 12 shows the rear side of a device for preventing unintentional disengagement of the tongues from the strap. It comprises a flat sleeve 12, which embraces and is slidable along the free end 9 of the strap, and has on its rear side a recess 13 with a flared mouth 14. When the buckle is fastened with its tongues projecting through the holes 10 in the strap, the sleeve is moved up the strap so that the resilient tongue 2 is engaged in the recess 13 and the tip of the tongue is covered by the outer side of the sleeve. Fig. 16 shows the device applied as a spring clip for attaching a pencil to a pocket. One end of the plate 16 is bent up to form a tongue 61, and the other end is provided with a grooved extension 17 which is bent over to lie parallel to the plate 16, its end 18 which may be provided with teeth being bent towards the plate 16. A resilient tongue 29, is riveted or otherwise attached at one end to the inside of the plate 16, its free end projecting through a hole in said plate. In use, the extension 17 and plate 16 grip the edge 23 of a pocket, and the tongues 29, 61 are forced between collars 25, or into annular grooves, provided on the. pencil.
Patent GB-806246-A (GB)
Title: Improvements in or relating to compositions for vegetative propagation of plants
IPC: A01N43/90
Filed: 1956-03-28
Abstract: 6 - n - Hexylaminopurine is prepared by heating a mixture of 6-methyl-mercaptopurine and hexylamine at 134 DEG  C. for 9 hours and recrystallizing from aqueous alcohol.  6-iso amyl- 6-cyclohexyl- and 6-octyl-amino-purines are prepared in a similar manner from isoamylamine, cyclohexylamine and octylamine and 6 - methylmercaptopurine.  6 - Benzylaminopurine is prepared by heating 6 - methylmercaptopurine with benzylamine at 145-147 DEG  C. for 8 hours.  6-Phenylethylaminepurine is produced in a similar manner from phenyethylamine and 6-methylmercaptopurine.ALSO:A composition for use in the vegetative propagation of plants e.g. to induce bud formation or to stimulate root growth, comprises a 6-R-aminopurine in which R is 4 to 10c alkyl, aralkyl or aryl, and an aminopurine and/or an auxin.  R may be n-butyl, n-decyl, phenyl or chlorophenyl, an alkyl group containing 4 to 10 carbon atoms being preferred.  The preparation of the n-hexyl, isoamyl, cyclohexyl, actyl benzyl and phenylethyl 6-aminopurines is described (see Group IV(b)).  Specified aminopurines are adenine and its salts e.g. sulphate, guanine and adenylic acid. Specified auxins are indoleacetic acids, indolebutyric acids, indolecinnamic acid, napthalene acetic acid and phenoxyacetic acid including the chloro derivatives such as 2, 4-D.  The compositions may be diluted with a carrier to form a spray or dust. Examples disclose compositions containing (a) 10-1000 ppb (parts per billion) of 6-n-hexylaminopurine with 1000-100,000 ppb of adenine and/or 100-5000 ppb of indoleacetic acid (b) 10-1000 ppb 6-benzylaminopurine with 1000-100,000 ppb of adenine and/or 100-5000 ppb of indoleacetic acid, (c) 10-1000 ppb of 6-anilinopurine with 1000-100,000 of adenine and/or 100-5000 ppb of indoleacetic acid. Nutrients such as soluble phosphates e.g. potassium dihydrogen phosphate, casein hydrolyzate and tyrosine may also be present. U.S.A. Specification 2,653,087 is referred to.
Patent GB-1359907-A (GB)
Title: Binding agents
IPC: C04B24/12
Filed: 1972-03-02
Abstract: 1359907 Coating HENKEL & CIE GmbH 2 March 1972 [3 March 1971] 9680/72 Heading B2E [Also in Divisions C3 C4 and D1] Asbestos-cement panels are coated with a composition comprising titanium oxide, chalk, zinc oxide, calciumhydrogenphosphate dihydrate, water, and as binding agent a mixture of triglycidylisocyanurate, sodium silicate solution, ethylenediamine, a quaternary ammonium compound and sodium trimethylsiliconate. Foam bodies, produced from a composition comprising mineral dust (pumice, expanding clay or volcanic ash); calcium hydrogenphosphate dihydrate and sodium silicofluorides as hardeners; a mixture of triglycidylisocyanurate, sodium silicate solution, ethanolamine and tetraethoxyammonium hydroxide as binding agent; and H 2 O 2 /KMnO 4 , H 2 O 2 /MnO 2 , Al, Fe/Si or Si as foaming agent, are coated with a composition comprising a mixture of triglycidylisocyanurate, sodium silicate solution, ethylenediamine, a quarternary annonium compound and sodium trimethylsiliconate.
Patent GB-437091-A (GB)
Title: Improvements in safety razors and blades
IPC: B26B21/20
Filed: 1935-03-28
Abstract: 437,091. Safety razors. BERGER, E. J. J., 173, Place Communale, Gougnies lez Acoz, Belgium. March 28, 1935, No. 9726. [Class 30] Relates to razors of the type comprising a square four-edged blade, Fig. 2, clamped between a square, dished head-plate, Fig. 1, and a dished, toothed guard plate, Fig. 3. According to the invention, the guard and head plates have each a central spherical segment A, from which slope away four curved portions B defined by arcuate edges 10 merging at the centre into the spherical portion ; and the blade has rounded corners. As shown in Fig. 2, the blade has a central hole 25<a> leading into a cross-slot 25, and is provided with slots 24 to receive pins 12 projecting from the head plate and passing through holes 17 in the guard plate. The slots 24 may be of different sizes to fit corresponding pins on the head plate. The central, threaded pin 13 on the guard plate passes through the hole 25<a> in the blade and the hole 18 in the guard plate and enters a tapped hole in the handle.
Patent GB-540236-A (GB)
Title: Retractible wing tip floats for flying boats and like aircraft
IPC: B64C35/00
Filed: 1940-06-05
Abstract: 540,236. Retractible seaplane floats. BLACKBURN AIRCRAFT, Ltd., and RENNIE, J. D. June 5, 1940, No. 9815. [Class 4] The operating mechanism for retracting and extending a pivotably mounted wing tip float 2 of a flying boat on a strut 4 pivoted at 5 to the wing 1 also causes the float to assume an inverted position in its retracted condition within a recess 6 of the wing and an upright position in its extended state. The strut 4 is accommodated in a recess 6a of the wing and its exposed surface together with the deck 2a of the float are both flush with the lower profile of the wing. The strut 4 is operated by a hydraulic jack 18 mounted on a link 8 of a pair of foldable links 7, 8 pivoted together at and at each of their other ends to the strut 4 at 10 and to the wing at 11 respectively, the ram of the jack 18 being pivotably connected to a lever 19 which is pivoted to the link 8 at 20. A pair of links 14, 15 pivoted together at 13 to an arm 12 pivotably mounted at 10 and pivotably connected at their other ends to the float at 16 and to an arm 8a at 17 respectively are caused to rotate the float through an additional 90 degrees by means of a pair of toggle links 22, 23 pivoted to the lever 19 at 21 and to the arm 8a at 9 respectively, the toggle links being connected to the pivot 10 by a link 24.
Patent GB-550995-A (GB)
Title: Improvement in process of making titanium dioxide pigments
IPC: C01G23/053
Filed: 1941-08-01
Abstract: 550,995. Making titanium dioxide pigments; titanium halides. BRITISH TITAN PRODUCTS CO., Ltd. Aug. 1, 1941, No. 9827. Convention date, Aug. 2, 1940. [Class 1 (iii)] Titanium dioxide pigment is prepared by converting a titanium sulphate solution, produced, e.g. by reacting ilmenite with sulphuric acid, into a titanium halide solution, e.g. by reacting it with calcium chloride or some other halide of an alkaline earth, and introducing the halide solution gradually into boiling water at a rate which enables the formation of colloidal nuclei of hydrous titanium dioxide which will serve as seed for the titanium dioxide particles formed later in the process, boiling the solution for a sufficient time to effect hydrolysis, separating the precipitated hydrous titanium and subjecting it to calcination. An additional solution of titanium sulphate may be introduced with the halide solution into the boiling water. After the precipitation the mother liquor may be treated with a hydroxide of an alkaline earth metal in order to regenerate the halide salt which is reused for the conversion.
Patent GB-201973-A (GB)
Title: Improvements in or relating to children's cots
IPC: A47D7/04
Filed: 1922-04-07
Abstract: 201,973. Makin, R. E., Makin, R. E., and Jeppesen, C. D. April 7, 1922. Bedsteads. - A child's cot comprises a rod A provided at one end with a fixed nut B carrying a screw C which presses two chocks D, D<1> in contact with the sides of a recess. The chocks support two rods A<1>, A<2> disposed one above and one below the rod A, a sheet of canvas forming the bottom of the cot being secured around the lower rod A<2> and a rod A<3> disposed rearward of the rod A<2> and provided with the fixing-screw C.
Patent GB-1463283-A (GB)
Title: Colour picture tube
IPC: H01J9/227
Filed: 1975-03-11
Abstract: 1463283 Colour television tubes MATSUSHITA ELECTRONICS CORP 11 March 1975 [13 March 1974] 9963/75 Heading H1D In a colour TV tube (Fig. 1, not shown) according to Specification No. 1,442,915 with slotted shadow mask 4 (Fig. 2, not shown) allowing electrons from three-in-line guns to impinge on parallel elongated three-colour phosphor areas 8, 9, 10 through corresponding apertures 5 in the mask, the width of the phosphor areas is at all points less than that of the corresponding beam impingement areas 128, 129, 130 and 128<SP>1</SP>, 129<SP>1</SP>, 130<SP>1</SP>, but in the central regions of the screen the length of the phosphor areas lies between that of the mask apertures and that of the impingement areas, whereas in corner regions of the screen where curvature and deflection errors among other effects tilt the line joining the impingement areas at angle #, the phosphor areas are made shorter than the apertures in the screen. The areas 8, 9, 10 on the screen may be masked out by a photochemical method, using a light source shining through the shadow mask and oscillating in line with the slots; the partial hardening of the photosensitive material at the ends of the areas allows the lengths remaining after wash-off to be controlled by the degree of exposure.
Patent GB-397239-A (GB)
Title: Improvements in automatic devices for operating valves, dampers and such like
IPC: G05D23/275
Filed: 1932-04-07
Abstract: 397,239. Thermally-actuated valves, dampers, &c. WINGFIELD, B. T., Brooklyn, The Green, West Drayton, Middlesex. April 7, 1932, No. 9964. [Class 135.] A thermal-actuating device for valves, dampers, &c. comprising a capsule or closed bellows chamber A containing volatile fluid and provided with an electric heater C controlled by a hand, pressure or thermal switch is fitted with a switch P adapted to interrupt the heater circuit when the pressure generated in the thermal chamber exceeds that necessary to produce the desired operating movement. The valve spindle is held by a spring R against a heat-insulating block Q carried by the lower end of the bellows A while the upper plate is recessed to provide a housing for a block of vitreous enamel in which the heater resistance is embedded. The upper plate is secured to a spindle D provided with a collar E normally held by a spring G against a support F. After the valve has seated further expansion of the bellows compresses the spring G and in so doing the end of the spindle D tilts a mercury switch P to break the heater circuit. According to the Provisional Specification the switch may be operated by an independent diaphragm chamber connected to the bellows or a spring may be interposed between the valve and thermal chamber and the compression of this spring used to actuate the switch.
Patent GB-790890-A (GB)
Title: Improvements relating to the heat treatment of gears and like toothed members
IPC: C21D9/32
Filed: 1956-03-29
Abstract: 790,890. Hardening gear teeth. GLEASON WORKS. March 29, 1956 [March 31, 1955], No. 9975/56. Class 72 A method of heat treating a toothed workpiece comprises directing gas flames against both sides of a tooth and directing a coolant gas against adjacent flanks of the adjacent teeth. As shown, Fig. 7, a burner has two parts separated by a flue 126. A combustible gas mixture is supplied from channels 129 and burned at nozzles 128 in such a direction that the flame strikes tooth T<SP>1</SP> on both sides. A coolant gas, e.g. air, is supplied through pipes 136 and directed against the root portions of the sides of teeth T<SP>11</SP> to prevent them from being heated. The sides 143 of the burner approach T<SP>11</SP> closely so that the coolant gas and the products of combustion escape through the flue 126. A machine to treat the teeth of an internal gear may have a loading arm having an arbor 34 supporting the gear and a slide 20 which includes a support for the workpiece during treatment to which support the workpiece is transferred from the loading arm. When the workpiece has been transferred to the work-holder 81, Fig. 3, the burner, supported by an arm 31 by which it may be moved to and fro along the axis 23 and also about the axis 32, is ignited and heats one tooth. An indexing device 105 is then operated and moves the heated tooth into a quenching tank while another tooth is indexed into position for heating. The movements of the loading arm, the slide and the burner are controlled by cams and electric switches and the indexing device by a Geneva motion. A diagram of the electric system is also given.
Patent HK-152895-A (HK)
Title: Interlaced digital video input filter/decimator and/or expander/interpolator filter
Inventor: ARBEITER HENRY JAMES
IPC: H03H17/00
Filed: 1995-09-21
Abstract: Reduction of storage capacity required by one dimensional digital filter/decimator and/or expander/interpolation filter for spatially filtering that given dimension of a scanned two-dimensional image, represented by a temporal video signal, which is orthogonal to raster scan lines. Such filter devices are particularly suitable for use in Burt Pyramid image processing systems.
Patent HK-158896-A (HK)
Title: Device for induced clamping of a workpiece on a workstation of a machine tool
Inventor: OBRIST BASIL
IPC: B23Q7/14
Filed: 1996-08-22
Abstract: The clamping device has a base (1) and a work carrier (2) which can be firmly clamped to the base (1) and on which orientation elements (5, 10, 27, 28) are arranged which interact in pairs and orientate the work carrier (2) in three coordinate axes perpendicular to one another and at the correct angle to the base (1). With their clamping force, several clamping members (4, 11) hold the work carrier (2) on the base (1) in the position secured by the orientation elements. Each clamping member has a chuck (4) at the base (1) and a clamping stem (11) at the work carrier (2). There are stop faces (27, 28) opposite one another as orientation elements for securing the position in a coordinate axis (Z) parallel to the line of action of the clamping force. In order to arrange the construction of the work carrier (2) to be as simple and inexpensive as possible, the same, on the side (9) facing the base (1) in the clamped state, has a continuously plane surface which in certain areas forms the stop faces (27) on this side and to which the orientation elements (10) on this side for securing the coordinate axes as well as the clamping stem (11) are fastened. <IMAGE>
Patent HU-T57446-A (HU)
Inventor: HANULIK JOZEF
IPC: G01T1/167
Filed: 1990-05-18
Abstract: Radioaktiv kontaminierte Gegenstände (10) werden nach einer groben punktuellen Messung (11) einem Fluorobor­säure-Bad (12) zugeführt und hier beispielsweise nach elektrolytischem. Verfahren in eine messbare Geometrie an den Kathodenplatten abgelagert. In der anschliessenden Messung (13) werden die unterhalb eines vorgegebenen Maxi­malwertes der radioaktiven Strahlung befindlichen Metalle ausgesondert und der Schrottverwertung (14) zugeführt. Die, bei der punktuellen Messung über dieser Grenze lie­genden Materialien, werden erst dekontaminiert (17) und dannach in das Säurebad (12) gegeben. Die Fluoroborsäure wird hierbei nicht verbraucht und verbleibt im System. Zur Erzeugung der Fluoroborsäure kann bereits radioaktiv kon­taminirte Borsäure aus Druckwasserreaktoren verwendet wer­den, der lediglich noch Flusssäure zugesetzt und danach destilliert werden muss. 
     Das erfindungsgemässe Verfahren reduziert die radioaktiven Abfälle (16), reduziert den messtechnischen und administrativen Aufwand für die Freigabe der nicht-radioaktiven Materialien.