baber/WOPTO huggingface dataset:
Patent GB-908408-A (GB)
Title: Improvements relating to audible signal apparatus
IPC: G08B3/10
Filed: 1960-07-23
Abstract: 908,408. Audible signalling - apparatus. WALLACE & TIERNAN Inc. July 28, 1960 [Aug. 7, 1959], No. 26325/60. Class 118. [Also in Group XXXIX] In a signal transmitter particularly designed for use as a fog-horn, a moving-coil transducer is coupled to a horn which at the operating frequency presents a purely resistive load, the transducer is mechanically resonant at the operating frequency, and the moving coil is fed by an oscillator which has a resonant frequency which is a major fraction of the operating frequency, feed back being provided from the coil to the oscillator. The diaphragm 6 (Fig. 5) is carried by a resilient beam 9 and is driven by the moving coil 14. The chamber 5 (Fig. 3), of which the diaphragm 6 forms one wall, is coupled by a tube 3 to the throat 2a of the horn 2 (Fig. 1) which forks at 2e into two mouths 2b, 2c spaced vertically from one another and open horizontally all round the periphery of the housing 1. The oscillator produces a square wave output and has a natural frequency which is half the operating frequency of the transmitter, but the arrangement is such that the mechanical resonant frequency dominates that of the oscillator which oscillates at the desired transmitter frequency.
Patent GB-444198-A (GB)
Title: Improvements in or relating to photographic sensitive elements
IPC: G03C7/26
Filed: 1934-09-15
Abstract: 444,198. Colour photography. KODAK, Ltd., Kingsway, London.-(Kodak Akt.-Ges. ; 27, Lindenstrasse, Berlin) Sept. 15, 1934, No. 26523. [A Specification was laid open to inspection under Sect. 91 of the Acts, March 22, 1935.] [Class 98 (ii)] A sensitive multi-layer element for direct exposure in a camera has successively coated on one side of a support 1, at least three differentially coloursensitive rapid gelatino-silver halide layers, the first layer 6 being sensitive to blue but insensitive to light to which the other layers are sensitized, and being separated from the other layers by a decolourable yellow gelatin filter layer 5. The other layers 2, 4 may be red-sensitized and green-sensitized, arranged in either order and separated by a clear intermediate gelatine layer 3, which may be lightly coloured. The emulsion layers are thin and relatively poor in silver. The green sensitized emulsion comprises a layer about À0005 inch thick, sensitized as by erythrosine to the region of the spectrum between 510 and 590 ÁÁ. The red sensitized emulsion is of the same thickness, and is sensitized as by naphthocyanol to the region 600-700 ÁÁ, but is relatively insensitive to wave lengths 520-530 ÁÁ. The intermediate layer 5 may be from À0001-À0003 inches in thickness and coloured with a yellow dye such as tartrazine, quinoline yellow or brilliant yellow. Further clear gelatine layers may be coated between the emulsion layers and the filter layers to prevent diffusion of the filter dye. The arrangement of the layers may be reversed, the blue sensitive layer being coated on the support. Specifications 15055/12, 245,198, [both in Class 98 (ii)], 427,516, 427,518, 427,520, and 440,032 are referred to.
Patent GB-485607-A (GB)
Title: Improvements in or relating to the coating of surfaces with liquids by spraying
IPC: D06N3/00
Filed: 1937-09-30
Abstract: Surfaces are coated by spraying a liquid on to the surface and moving the sprayed surface in an enclosed space in contact with the gaseous suspension formed of droplets of the spraying liquid which are not deposited on the surface to be coated during the spraying, the gaseous suspension being carried along the enclosed space by a current of a gas introduced independently of the spraying device.  As shown, applied to a process as described in Specification 482,844, wherein a web of fabric T is coated by spraying with rubber latex and is immediately passed to a drying chamber S and then returned after drying to the spraying chamber P, the apparatus may comprise a spraying chamber P through which the fabric may be carried by a chain conveyer a, between it and an endless felt support m, latex being sprayed by spray guns r mounted on rods s so as to be given a longitudinal or rotary movement from outside the chamber.  The mist of the sprayed liquid is maintained in contact with the fabric by passing a gas, such as air, along an inclined conduit C adjacent the <PICT:0485607/IV/1> spraying chamber P in the same direction as the travel of the fabric.  Baffles t1 in the conduit C direct the current of mist-laden air into contact with the fabric.  The conduit C communicates with a suction pipe v, and has air inlets t controlled by regulating throttles u.  The chamber P has air inlets p provided with regulating means in doors and in a fixed panel in the chamber, and also has a window for observing the spraying.  The web T which may conveniently be of the same length as the chain conveyer with its ends temporarily joined together is laid on a tentering cylinder z and one end is passed between a cylinder h, concentric with driving pinions e for the conveyer, and a cylinder h1 which is pressed against it.  The edges of the fabric are engaged on needle points on the links of the chains a of the conveyer and are pressed thereon by brushes z1.  A thin coating is applied and is dried before subsequent coatings to any desired number in accordance with the thickness of rubber required are applied.
Patent GB-474494-A (GB)
Title: Improvements in lock-nuts
IPC: F16B37/02
Filed: 1936-09-30
Abstract: 474,494. Lock - nuts. STEINHORST, W. Sept. 30, 1936, No. 26547. [Class 89 (i)] A lock-nut is formed by a plate having resilient tongues l, which engage the thread of the bolt, and lugs f, bent inwards from the edge of the plate, which also engage the thread. The edges of the lugs f have a helical twist of a different pitch from the thread. The rim of the plate is up-set to form flanges so that the lugs jam in the thread.
Patent GB-414236-A (GB)
Title: Water-tight and rustless wristlet watch holder
IPC: A45C11/12
Filed: 1933-09-27
Abstract: 414,236. Attaching watches to person; casings. BERENYI, J., 21, Narciss Ucca, Budapest. Sept. 27, 1933, No. 26566. [Class 43.] A water-tight wristlet watch holder comprises a transparent casing 1 having one or two detachable end caps 2, 3 which are held in position by a pivoted clasp 4, rubber packing pieces 5 being introduced between each detachable cap and the end of the casing to make an air-tight closure. The cover 3 is provided with notched wedgeshaped members 8 for retaining the clasp in position and the latter is formed with loops 12, 13 to receive the wrist straps. The end cap 2 may be secured to the casing by adhesive or may be formed integrally therewith. The fastening means may be formed integrally with the end caps.
Patent GB-1166746-A (GB)
Title: Method of providing a Metal Substrate with a Metallic Coating
Inventor: COSTELLOE PATRICK
IPC: C23C24/00
Filed: 1967-06-08
Abstract: 1,166,746. Coated metal. JOHN SUMMERS & SONS Ltd. 8 June, 1967, No. 26584/67. Heading B2K. [Also in Division C7] A metal substrate e.g. a steel strip is cleaned without introducing hydrogen into the surface, e.g. by pickling in dilute HNO 3  or by grit blasting, and then coated with both a solution of sodium or potassium silicate and a metal powder such as aluminium and the coating is then compressed against the substrate e.g. by rolling. The metal powder may either by applied in an electrostatically charged condition to the substrate which is wetted with the silicate solution or it may be applied as a slurry in the silicate solution which is made thixatropic by the addition of xylol and butanol. The coated substrate is then sintered at e.g. 500C.
Patent GB-1033234-A (GB)
Title: Improvements in or relating to a buoyancy device for a surface watercraft
IPC: B63H1/38
Filed: 1964-06-26
Abstract: 1,033,234. Craft supported on propulsion floats. M. JUSTINIEN. June 26, 1964 [June 26, 1963; April 9, 1964], No. 26609/64. Headings B7A and B7V.  A buoyancy device for surface watercraft comprises a screw having a volumetric water displacement of less than one half of its own volume, said screw being rotatably mounted on said craft. The screw, which has two starts la, 1b (Fig. 2, not shown), attached to a sleeve 3 surrounding a shaft 2, may be hollow and made from sheet metal or plastics material, may be solid and made from a material of low specific gravity, or each spiral member could be in the form of an inflatable envelope. Pairs of screws may be mounted in paralell on a craft's structure and may be rotated by means of a chain drive (Fig. 4, not shown). Steering of the craft may be accomplished by differential braking of the screws. Preferred relative dimensions of the screw are mentioned in the description.
Patent GB-869582-A (GB)
Title: Mechanical damping member for an electroacoustic transducer
IPC: G10K11/00
Filed: 1958-08-19
Abstract: 869,582. Ultrasonic probes. CHIRANA PRAHA, NARODNI PODNIK. Aug. 19, 1958 [Aug. 19, 1957], No. 26626/58. Class 40 (4). [Also in Group XL (b)] A damping member for improving the frequency response of a transducer in an ultrasonic probe comprises an inner part which contacts and forms an acoustic match with the back of the transducer, this inner part having a curvilinear taper and being surrounded by an outer part of lower acoustic impedance. The transducer 1 is of the piezo-electric type and is positioned on the surface of a test-piece 4. The inner and outer parts 6, 7 of the damping member are made respectively of an artificial resin loaded with powdered silver and of unloaded resin. The taper of the inner part is such that a tangent to any part of the parting surface 8 forms an angle of less than 75 degrees with the axis of the inner part. Under these conditions, part of the wave-energy transmitted into the inner part 6 from the back of the transducer, passes into the outer part 7 where it undergoes multiple reflection. The end 9 of the inner part may have an increased rate of taper. The end part 9 may be replaced by a conical depression 10, Fig. 3, filled with unloaded resin.
Patent GB-1535158-A (GB)
Title: Catalytically isomerizing 1-butene
IPC: C07C11/08
Filed: 1977-06-24
Abstract: 1535158 Isomerizing butene-1 INSTITUT FRANCAIS DU PETROLE 24 June 1977 [25 June 1976] 26638/77 Heading C5E Butane-1 is isomerized to butene-2 by contact in the presence of H 2  with a catalyst containing a Group VIII noble metal which has previously been contacted with a sulphur compound and then with H 2 . A preferred catalyst is 0À01-2 wt. per cent Pd on Al 2 O 3  which has been pre-treated with H 2 S diluted with H 2  at 50-400‹ C. and then contacted with H 2  at 80‹ C. or more. The isomerization may be carried out at 50-140‹ C. with the butene-1 mainly in the liquid phase. The butene-1 may be contained in a C 4  feedstock, any butadiene present therein being hydrogenated during the isomerization.
Patent GB-1392483-A (GB)
Title: Printing telegraph apparatus
IPC: H04L12/02
Filed: 1972-06-08
Abstract: 1392483 Telegraphic station CREED & CO Ltd 8 June 1972 26765/72 Heading H4P A telegraphic station comprising at least a recording device and a character signal generator has input circuitry to adapt the station by means of manually adjustable straps or links to single or double current working, CCITT type A or type B exchange signalling, and dial impulse or coded-character-signals for call selection. The input circuitry isolates the exchange line voltages and currents from the telegraphic station proper and includes relay circuitry for performing the necessary logic operations which are tuned by a clocked register/counter which also receives telegraphic character signals from the exchange.
Patent GB-140342-A (GB)
Title: Improvements in apparatus for mixing paints or colours or the like materials or substances
IPC: B01F7/16
Filed: 1919-10-31
Abstract: 140,342. Smith, S. Oct. 31, 1919 Batch mixers with circulating-devices.- In a machine for mixing paint, the material is whirled by a rotating stirrer against fixed baffle-plates which are inclined to the direction of rotation of the stirre.r, the inner edge of a baffle being forward of the outer edges so that the paint is thrown towards the centre of the container. The paint is contained in a bucket or tub D, Fig. 1, and is stirred bv an horizontal blade C<4> secured to the lower end of a vertical rotating shaft C. An horizontal rod C' secured to the shaft D also assists the stirring. Two fixed baffle-plates E extend into the tub, and they are set at an inclination to the direction of rotation of the stirrers, as shown in plan in Fig. 2. When the stirrers rotate, they throw the material outwards; but the baffles, by their inclination, cause it to pass towards the centre of the tub.
Patent GB-877780-A (GB)
Title: Small motion picture camera
IPC: G03B19/18
Filed: 1959-08-05
Abstract: 877,780. Kinematographic apparatus. KAMERABAU-ANSTALT. Aug. 5, 1959, No. 26782/59. Class 97(1) A motion picture camera having a removable housing cap 6 is characterized in that the supporting plate 9 for the film reels is reduced in extent so as to allow the flanges of the reels to project beyond its edge to facilitate gripping of the reels. The housing cap carries a calibrated ratchet wheel 15 for indicating film footage at the window 11 the wheel being activated by the pawls 13 and 16 mounted on the camera body 1. Removal of the housing cap releases a spring on the ratchet wheel which automatically returns to zero. On replacing the cap, the ratchet wheel re-engages the pawls. A view-finder 17 is mounted on the housing cap. The drive spring is strained by turning the handle 5.
Patent GB-446264-A (GB)
Title: Improvements in or relating to supply arrangements for luminous electric discharge tubes
IPC: H03B5/10
Filed: 1935-03-18
Abstract: 446,264. Supply systems for discharge lamps. LARK, G. T. KINGSLEY-, 5, Eldon Road, Hampstead, London. March 18, 1935, No. 26783/34. [Class 38 (iv)] [See also Group XL] Comprises a circuit for supplying luminous discharge tubes with high frequency energy from a L.F. supply. The anodes of a pair of valves A, B are connected to an A.C. supply through high frequency chokes L1, L2 and to the primary winding of the H.F. transformer L3 through condensers C1, C2 which isolate the H.F. circuit from the L.F. circuit. The grid biassing of the valves is determined by cross-connected condensers C3, C4 and resistances r1, r2. The filaments are supplied from a transformer T. The luminous discharge tubes may be energized by induction. An interrupter may be included in the supply to obtain particular lighting effects. Specification 380,138, [Group XL], is referred to.
Patent GB-1503035-A (GB)
Title: Process for the isomerization of glucose into fructose
IPC: C08B37/00
Filed: 1975-06-25
Abstract: 1503035 Isomerization of glucose to fructose MITSUBISHI CHEMICAL INDUSTRIES Ltd and SEIKAGAKU KOGYO CO Ltd 25 June 1975 [26 June 1974] 26883/75 Heading C2S Glucose is isomerized into fructose by glucose isomerase in a process in which there is present in the reaction mixture iron ion together with magnesium ion. The glucose isomerase may be present in immobilized form, preferably adsorbed on an ion exchanger, e.g. a macroporous anion exchanger such as an anion exchange resin the matrix of which comprises a copolymer of styrene-divinyl benzene and the ion exchange group is a quaternary ammonium group, or adsorbed on a cyanogen halide derivative of cross-linked agar. Preferred sources of iron ion are ferrous sulphate, ferric sulphate, ferric chloride, ferrous ammonium sulphate, ferric ammonium sulphate, iron tartrate, or mixtures thereof and the preferred magnesium sources are magnesium sulphate, chloride, sulphite, carbonate or mixtures thereof.
Patent GB-680556-A (GB)
Title: Improvements relating to the manufacture of leather footwear
IPC: A43B13/28
Filed: 1949-10-20
Abstract: 680,556. Cementing shoe soles. LOTUS, Ltd., and MERCER, F. G. Oct. 20, 1950 [Oct. 20, 1949], No. 26958/49. Class 17 (ii). A nitro-cellulose type of adhesive by which a sole is retained in position on an upper during its attachment e.g. by sewing is activated by immersing the sole in a volatile non-staining liquid harmless to leather and which will soften the leather and activate the adhesive without adversely affecting its adhesive properties. A suitable liquid mixture is acetone 35 per cent, petroleum ether 25 per cent, ethyl acetate 10 per cent, methyl ethyl ketone 25 per cent, and di-butyl phthalate 5 per cent, all by volume. Specifications 496,389, 680,524, 680,561, [Group III], and U.S.A. Specification 2,208,809 are referred to.
Patent GB-1468043-A (GB)
Title: Cured polyurethane
IPC: C08L75/00
Filed: 1974-06-18
Abstract: 1468043 Polyurethanes GOODYEAR TIRE & RUBBER CO 18 June 1974 [23 July 1973] 27030/74 Heading C3R Polyurethanes are prepared by forming a prepolymer from a polymeric polyol of functionality 2 to 3 and M.W. of 500 to 6000 and excess of a polyisocyanate of functionality 2 to 3 and reacting at least a part of the isocyanate groups in the prepolymer with 2,21-diaminodiphenyldisulphide. When an excess of amino groups are present relative to the isocyanate groups in the prepolymer, the resulting polyurethane may be mixed and subsequently reacted with an epoxy resin.
Patent GB-209472-A (GB)
Title: An improved differential gearing
Filed: 1922-10-09
Abstract: 209,472. Goodhart, G. C. Oct. 9, 1922. Balance - gearing of the bevel epicyclic type is adapted to use involute teeth of obtuse angle so as to introduce internal friction. Planet pinions having such obtuse teeth are not always in action and they are arranged in two groups one of which is in full action when the other is out of action. There is an even number of planet pinions each with an odd number of teeth. Either the number of teeth of the sun gears or the spacing of the planet gears is then chosen to suit. In the arrangement shown, there is a group of planets a and a group b, and the sun gears c, d are thrust apart against friction cones e to further increase the internal resistance, as described in Specification 27123/11.
Patent GB-927928-A (GB)
Title: Improvements in and relating to electro-photographic developing apparatus
IPC: G03G15/08
Filed: 1958-08-26
Abstract: 927,928. Developing electrostatic images. OZALID CO. Ltd., and A. L. ROBERTSON. Aug. 26, 1959 [Aug. 26, 1958], No. 27294/58. Class 98 (2). Apparatus for developing electrostatic charge images comprises a container for developer powder, a rotatable member within the container adjacent the bottom and rear wall and having on its periphery means such as buckets or vanes adapted to carry as the member rotates developer upwardly around the rear wall and to discharge the powder forwardly within the container on to the charge image-bearing sheet or web which is supported so as to extend from above the container bottom upwardly and outwardly of the container, whereby surplus developer powder falls back along the sheet or web into the container for re-circulation. As shown developer powder in the bottom of the container 2 is moved upwardly along the curved wall 1 by an anti-clockwise rotatable brush having sets of bristles 3 on a hub 4 and is thrown on to a guide plate 11 so that powder is applied at 6 to the upwardly moving web 7 fed around rollers 8, 9 and supported by a backing plate 5. A stationary brush 11 closesthe gap between the web on rollers 8 and the bottom of the container. To replenish the developer, a powder cloud is blown through a gauze-covered aperture in the container.
Patent GB-1048336-A (GB)
Title: Grinding machine and method
IPC: B24B41/06
Filed: 1965-06-28
Abstract: 1,048,336. Grinding. TIMKEN ROLLER BEARING CO. June 28, 1965 [Oct. 26, 1964], No. 27360/65. Heading B3D. A method of grinding an elongated metal object, such as a tapered roller 17, comprises positioning the object in a series of spaced pairs of shoes 14, the shoes of each pair having a constant radius, rotating the object, moving a grinding wheel 13 into engagement with the rotating object, axially feeding the object along the pairs of shoes, and moving the wheel away from the object after it has been moved a predetermined distance along the shoes. As described, the machine has two pairs of shoes 14 having carbide inserts 15 formed with operative contours of radii corresponding to the final diameters of the large and small ends of the roller to be ground, the shoes being integral with, or adjustable by screw and slot mechanisms 16 on a base 12 mounted on the stand 11 of the machine. A slide 22, Fig. 1 (not shown), is slidable along the base by means of a screw 24 and hand wheel 23 and carries a motor 27 connected by a chain 26 to a drive mechanism 21 for rotating the roller. The mechanism 21 has a driven member 25 formed with a plurality of arms 25a, Figs. 4 and 5 (not shown), connected by bolts 30 to a flexible ring 28, in turn, connected by further bolts 30 to the arms 29a of a driver 29 having a nose 32 formed with teeth 33 of plastic at its leading end for engaging the spherical or conical large end of the roller which is thereby rotated and can be moved axially across the grinding wheel by rotation of the hand wheel 23. The members 25, 29 can rock about a ball 31 to compensate for off-squareness of the end of the roller. The small end of the roller is engaged by a back-up device 34, Fig. 1 (not shown), having a fixed outer housing 35, Fig. 6 (not shown), in which an inner housing is keyed at 37 for axial movement, an air cylinder 38 acting with constant pressure to urge a hub 39 mounted in bearings 40 in the housing 36 against the small end of the roller. The centre line of the back-up device 34 and drive mechanism 21 is eccentric with respect to that of the roller so illustrated by the lines A, B in Fig. 7 (not shown) so that the roller is urged towards the shoes 14. In operation, a roller is inserted snugly into the shoes 14 and a control dial 42 operated by an air orifice 41, Fig. 3 (not shown), is adjusted to read zero. The grinding-wheel is advanced until a light spark is obtained and is then locked in position. Rotation of the hand wheel advances the roller through the grinding area, the movement being such that the dial 42 remains at zero. The amount of stock removed is determined by the reading of a gauge dial 44 operated by an air orifice 43. When the dial 44 indicates that the desired amount of stock has been removed, the grinding wheel is retracted and the roller lifted from the seats by operation of a handle 20, Fig. 2, connected to an arm 18 mounted on a pivot 19.
Patent GB-1476785-A (GB)
Title: Catalyst for ammoxidation
IPC: C07C255/50
Filed: 1974-06-20
Abstract: 1476785 Aromatic nitriles SUN VENTURES Inc 20 June 1974 [20 June 1973] 27372/74 Heading C2C [Also in Division B1] The ammoxidation of organic compounds, in particular mono- or polyalkyl-substituted aromatic hydrocarbons of the benzene or naphthaline series, is carried out in the absence of added oxygen using a supported vanadium oxide catalyst which has been pretreated at 300-600‹ C. and 1 atmosphere-100 p.s.i.g. with 0À1 to 1 mole of carbon monoxide per mole vanadium oxide. The feed hydrocarbon may be toluene, xylenes, alpha - methylnaphthalene, polymethylnaphthalenes, mono- and polyalkylanthracenes, mesitylene or durene. The example describes the ammoxidation of p-xylene to give p-toluonitrile and terephthalonitrile together with some benzonitrile.