baber/WOPTO huggingface dataset:
Patent GB-579790-A (GB)
Title: Improvements in or relating to the production of aluminium sulphate or mixtures containing it
IPC: C01F7/762
Filed: 1944-03-06
Abstract: 579,790. Aluminium sulphate. ABBEY, A. (Stent, H. B., and Koenig, T. A.). March 6, 1944, No. 4145. [Class 1 (iii)] Kaolins, volcanic clays and similar materials containing aluminium silicates are mixed, without preliminary ignition, at atmospheric temperature to a stiff paste with sulphuric acid equivalent in quantity to the alumina content, and roasted for about one hour at 200-250C. to convert the alumina substantially to aluminum sulphate. An inert material such as diatomite may be added to yield the stiff paste. A muffle, rotary muffle or like furnace may be used. The product may be dried and used as "alum coke " or the aluminum sulphate may be recovered by leaching. Examples are given. Specifications 169,301, [Class 1 (iii)], and 470,305 are referred to.
Patent GB-1371284-A (GB)
Title: Circuit package suitable for integrated circuits
IPC: A01K85/16
Filed: 1972-01-28
Abstract: 1371284 Component assemblies ING C OLIVETTI & C SpA 28 Jan 1972 [29 Jan 1971] 4192/72 Heading H1R A circuit package comprises a substrate carrying active circuit elements and a metallization pattern extending to the periphery of the substrate, terminal leads being attached to the pattern and being secured to a support of synthetic plastics material which also supports the substrate. Terminal leads 1 are bent where they are embedded in a polysulphone plastics material or glass or alumina charged plastics material support, the distances d-1 and d-2 being dependent upon the shape of the bent segments of the leads 1. The integrated circuit substrate 4 is supported by its periphery over a central aperture in the member 3, the top portions of the leads 1 then being connected to the metallization pattern 5. All of the terminals are initially connected to strip 2 which are subsequently removed.
Patent GB-604197-A (GB)
Title: Improvements in or relating to the flameproofing of cellulosic and protein textile materials
IPC: D06M13/453
Filed: 1945-02-19
Abstract: 604,197. Flameproofing textiles. BANCROFT & SONS CO.. J. Feb. 19, 1945. No. 4201. Convention date, Dec. 18, 1943. [Class 140] Cellulosic and protein textile materials, such as dress goods, are flameproofed by impregnation with phosphoric acid and urea and then subjection to a temperature of not less than 270‹F. for a time sufficient to effect combination of the acid and urea with the textile material but insufficient to objectionally weaken the material. Woollen fabrics, or fabrics containing wool may be so treated. The phosphoric acid and urea may be mixed in the cold and water added, or the mixture may be heated before addition of water and the resulting solution applied to fabric as by padding, the padded fabric is then dried, and, as described in several examples, heated at temperatures from 270‹ to 345‹F. for periods from 45 to 2 minutes, lower temperature requiring a longer time. An oven may be used for the heating or " curing step. After curing the fabric is washed to remove any unneeded urea but the phosphoric acid and urea which are combined with the material of the fabric are not removed by repeated washings. The Specification as open to inspection under Sect. 91 comprises also the use of acids of phosphorous other than orthophosphoric acid; sulphuric acid, sulphamic acid and salts of the these acids; and, instead of urea, the use of dicyandiamide, biuret and cyanuric acid and salts of these bases such as the sulphates, phosphates and sulphamates. This subject-matter does not appear in the Specification as accepted.
Patent GB-491376-A (GB)
Title: Improvements in or relating to devices for dispensing liquids
IPC: B67D3/00
Filed: 1937-02-12
Abstract: 491,376. Dispensing liquids. NON-DRIP MEASURE CO., Ltd., BERWICK, F. W., and BERWICK, A. G. Feb. 12, 1937, Nos. 4240 and 28610. [Classes 106 (v) and 116] In apparatus for dispensing liquids, a device for delivering a measured quantity of a liquid and a valve controlling the supply of a second liquid are operated through a common element actuated by upward pressure so as to cause both liquids to be delivered simultaneously. The apparatus may be used in the preparation of drinks by the dilution of fruit essences with water. In the form shown containers 5 and 6 are detachably mounted by means of lugs 46 and plungers 48 to the ends of a cross-bar 4 carried by a standard 1. Each container communicates with a measuring and dispensing device 25 as described in Specification 455,266. The standard and crossbar are hollow and are connected to the supply means for the second liquid. Supported from and communicating with the cross-bar adjacent each measuring device 25 is a housing 28 for a valve 40 controlling the flow of the second liquid to a delivery nozzle 27. The valve is adapted to be actuated through a stem 33 and abutment 38 by a lever 31 which is moved upwardly to open the valve when the operating arms 29 of the device 25 are moved upwardly by the receptacle to permit the discharge of the measured quantity.
Patent GB-163118-A (GB)
Title: Improvements in and relating to transmitters for wireless telegraphy and telephony
IPC: H03F3/44
Filed: 1920-02-11
Abstract: 163,118. Macrorie, A. K., and Shearing, G. Feb. 11, 1920. Thermionic oscillation generators. - In thermionic systems for generating oscillations, two or more valves are connected with their anode circuits in series or series-parallel, and with their grid circuits highly insulated from one-another and separately coupled to the aerial circuit. An arrangement of this kind, with four valves in series-parallel is shown in Fig. 2. The filaments are heated by alternating current from highly insulated tranformer secondaries. In the arrangement shown in Fig. 3, continuous current is supplied to the anode circuit by thermionic rectifiers T, U fed from a power transformer H, and a condenser W is inserted to insulate both grid circuits from earth. The inductance in the aerial circuit between earth and the anode tapping X may be much greater, for a given power supply, than with a parallel arrangement of valves, and in an arrangement such as that shown in Fig. 3 the heating and emission current of the rectifier filaments is reduced. If the aerial oscillations cease for any reason, sudden increase of valve current is automatically prevented, as the grids retain their negative potential for a time.
Patent GB-565649-A (GB)
Title: Improvements in and relating to fluid seals for bearings
IPC: F16J15/32
Filed: 1944-03-16
Abstract: 565,649. Stuffing - box substitutes. COOPER, J. F. March 16, 1944, No. 4282/43. [Class 122 (v)] A bearing seal comprises an inner ring t, outer rings u, v having abutting projections ul, v<1> and carbon or felt &c. packing rings x bearing either on the rings u, v, or the ring t and bonded to rubber rings x<1> bonded in turn to another of said rings.
Patent GB-136715-A (GB)
Title: Improvements in or relating to Expansion Joints for Boiler and like Flues.
Inventor: THORNLEY JAMES WILLIAM
IPC: F23M5/02
Filed: 1919-02-21
Abstract: 136,715. Thornley, J. W. Feb. 21, 1919. Flues, external.-External-flue expansion plates are kept in contact with the boiler by rollers on inclined bars. The two side vertical plates carry a top horizontal plate, or the horizontal plate may be independently operated. The rollers may have additional weights attached to ensure contact of the plates with the boiler. In a modification, the rollers are eccentrically mounted on spindles. Side vertical plates d, Fig. 1, contact with the boiler e under pressure of rollers h on inclined bars b in a case a in the end walls. The plates rest on rollers c and are guided by rods g passing through slots. The rollers may be mounted eccentrically on rods instead of freely rolling down inclined bars, a weight, Fig. 5, being hung by a wire g from the axis to keep the rollers up against the plates d.
Patent GB-1456264-A (GB)
Title: Method for preventing the formation of turbidity and/or deposits in non-alcoholic beverages containing saccharose and concentrates for such beverages
IPC: A23L29/25
Filed: 1974-01-30
Abstract: 1456264 Gum arabic/saccharose compositions NAARDEN INTERNATIONAL NV 30 Jan 1974 [12 Feb 1973] 04354/74 Heading C3U [Also in Division C6] A solid or liquid preparation comprises saccharose and at most 0À25 wt. per cent gum arabic based on the saccharose. The preparation may be added to a clear non-alcoholic beverage or liquid concentrate for such a beverage to prevent the formation of turbidity, or gum arabic may be added alone, as the solid or in aqueous solution, before, during, or after the preparation of the saccharose-sweetened beverage or concentrate, such that at most 0À25% gum arabic is present, based on the weight of saccharose.
Patent GB-1113892-A (GB)
Title: A process for the production of tetrachloroethene from organic material comprising at least a substantial proportion of propane,propene and/or derivatives of these hydrocarbons
IPC: B01J27/06
Filed: 1966-02-01
Abstract: Perchloroethylene is made by subjecting a mixture of organic compounds containing a substantial proportion of propane, propylene and/or derivatives thereof to oxychlorinolysis at 370-500 DEG  C.  By derivatives of propane and propylene are meant those saturated and unsaturated derivatives containing 3 carbon atoms and oxygen, hydrogen and/or a halogen.  Oxychlorinolysis is defined as the reaction in which chlorination and the cleavage of carbon chains occurs in the presence of molecular oxygen, an oxychlorination catalyst and chlorine and/or hydrogen chloride. If in the present process, the starting materials include highly chlorinated derivatives, the addition of chlorine and/or hydrogen chloride may not be necessary.  Suitable starting mixtures are those obtained as by-products in the preparation of allylchloride and/or epichlorhydrin.  Preferred catalysts are those comprising chlorides of copper supported on a carrier material having a surface area of 0.1-100 m.2/g. and optionally containing one or more chlorides of an alkali metal or rare earth metal or Sc, Y, Zr, Th or U.  It is preferred to use a feed stock comprising at least 60 mol. per cent 1,2,3-trichloropropane.  In the examples, some CCl4 and chlorinated ethanes are obtained as by-products.
Patent GB-1391572-A (GB)
Title: Method of processing tin- and bismuth-bearing materials
IPC: C22B4/00
Filed: 1973-01-29
Abstract: 1391572 Obtaining tin or bismuth PROEKTNY I NAUCHNO-ISSLEDOVATELSKY INSTITUT GIPRONIKEL 29 Jan 1973 [28 Jan 1972] 4419/73 Heading C7D Tin, bismuth, and possibly lead and zinc, are obtained by sublimation from tin- and bismuthbearing materials in a fuming furnace by a process wherein portions of the charge are regularly added as solids to the furnace during each cycle and a fuel-air mixture is blown through the furnace concurrently with the smelting process taking place throughout the cycle. At the end of a cycle a proportion of the resulting slag is retained for the next cycle. The fuel-air mixture is injected at differing rates during each cycle at 1.2 to 1.7 times theoretical air consumption rate during smelting and blowing and at 0.9,to 1.0 times during a slag improving period. The process is  particularly suited for the treatment of lean sulphide concentrates.
Patent GB-1514424-A (GB)
Title: Process for the production of spherical particles containing alumina
IPC: B01J35/08
Filed: 1976-02-04
Abstract: 1514424 Spherical Al 2 O 3  particles; catalysts KALI-CHEMIE AG 4 Feb 1976 [4 Feb 1975, 16 Oct 1975] 04471/76 Heading CIA [Also in Division B1] Substantially spherical Al 2 O 3  particles are produced by mixing (i) an Al 2 O 3  hydrosol, (ii) C or wood flour or starch, (iii) a hydrated Al 2 O 3  and/or active Al 2 O 3  and (iv) an aqueous solution of a base that is hydrolysable by heat, wherein the mix is dropped or sprayed at 60 to 100C into a waterimmiscible liquid, the resultant gel particles, being first aged in the liquid and then in aqueous NH 3 , are subsequently water washed, dried and calcined. The particles can be used as catalyst supports or as catalysts (see Div. B 1). Cu/Cr oxide catalysts on the support are used in exhaust gas treatments to remove CO and hydrocarbons.
Patent GB-722536-A (GB)
Title: Improvements in or relating to feeder heads of ingot moulds
IPC: B22D7/10
Filed: 1952-02-20
Abstract: 722,536. Ingot moulds. MARSHALL & CO., (LOXLEY), Ltd., T., and HOWSON, H. O. Feb. 2, 1953 [Feb. 20, 1952], No. 4523/52. Addition to 689,465. Class 83 (1). An improvement in or modification of the feeder head claimed in the parent Specification consists in that the recessed face of each tile 11 is provided with a number of regularly-arranged insulating cavities 16. The cavities may be of rectangular or diamond-shape and of constant or varying depth, Fig. 3.
Patent GB-197425-A (GB)
Title: Improvements in rangefinders, heightfinders and inclinometers
IPC: B66B5/18
Filed: 1922-02-16
Abstract: 197,425. Barr & Stroud, Ltd., Barr, A., and Stroud, W. Feb. 16, 1922. Range-finders, height-finders, inclinometers, and like instruments are provided with means for producing a relative motion between the separating line of the eyepiece system and the image of the target when the support of the instrument is rolling or the target is varying its angular elevation. This relative motion is effected, without moving the main tube of the instrument, either by moving the separating line or the target image. If the separating line be produced by a refractory prism, this prism mav be moved through a small distance or the eyepiece prisms may be moved. Alternatively, the inner frame may be bent so that the eyepiece prism is moved relatively to the objectives, or small prisms placed in the converging beams from the negatives may be simultaneously rotated in opposite directions. The eyepiece 5, Fig. 1, comprises a convex lens 6 and a convex lens 7 with a prism 8 on its face to form a separating line, and is mounted on a ring 10 which may be moved slightly in relation to the outer tube 2 of the instrument. Lenses 15, 16, Fig. 5, situated in the path of the rays from the objective to the eyepiece may be rocked up or down by the handle 3 through gearing. Equal refracting prisms 30, 31, Fig. 9, may be displaced longitudinally to positions 32, 33. These constructions, which are examples of many, all provide the relative motion desired. In the case of stereoscope range-finders, relative movement takes place between the measuring marks and the target images. Specification 13507/93 is referred to.
Patent GB-107559-A (GB)
Title: Improvements in Power Hacksaw-machines.
Inventor: RASMUSSEN ANDREW
IPC: B23D49/00
Filed: 1917-03-30
Abstract: 107,559. Rasmussen, A. March 30, 1917. Reciprocating-saw machines.-In a hack-saw machine, the blade is fed to the work during the cutting stroke and is lifted from it by a spring or weight during the non-cutting stroke, a checking-device provided to limit this lifting movement. The bar 12 upon which the saw frame 14 reciprocates is pivoted upon the driving- shaft 13 and is normally raised by a spring 25 or equivalent weight. An arm 36 of the frame 12 is pivoted to a vertically slidable ratchet bar 33 which is depressed during the cutting-stroke to feed the saw to the work by a dog 40 carried by a lever 42 rocked by a spring 50, the tension of which is adjusted by a lever 55, 58. During the non-cutting stroke, the dog 40 is raised by a cam 49 on the shaft 13 and the saw is raised from the work by the spring 25, this movement being checked by a dog 60<1> engaging the ratchet-bar 33. To allow the spring 25 to raise the saw for the insertion of new work, the dogs 40, 60<1> are withdrawn from the ratchet-bar 33 by a hand-lever 68, 65, the height to which the saw rises being limited by a stop 73 adjustable on a rod 70. According to a modification, the ratchet bar 33 is replaced by a ratchet disk.
Patent GB-137657-A (GB)
Title: Improved miners' picking and ripping tools
IPC: E21C37/22
Filed: 1919-02-25
Abstract: 137,657. Evans, J. D. Feb. 25, 1919. Picks.-A miners' picking and ripping bar is constructed with a steel tube fitted with a. removable bit, preferably at each end. The bit 1, Fig. 1, may have a parallel shank held in the socket by a cross-pin, or a taper shank engaging a split socket 6, Fig. 3. A shoulder 4 of larger diameter than the tube 3 may be formed on the bit to facilitate its removal by striking with a drift; or the bit may be ejected by a striker 9, Fig. 3, having a lug 8 projecting through a longitudinal slot 7 in the tube 3. The striker is retained in position by a fixed block 10 in the tube, and is operated by a blow on the lug 8.
Patent GB-797908-A (GB)
Title: Improvements in or relating to transmission mechanisms
IPC: F16H29/00
Filed: 1956-02-14
Abstract: 797,908. Variable speed gearing. DIMAR SOC. ANON., and BARFRED SOC. ANON. Feb. 14, 1956 [Nov. 14, 1955], No. 4648/56. Drawings to Specification. Classes 80 (1) and 80 (2). In a continuously variable change speed gear the uniform continuous primary motion is analyzed to produce periodic components of which the sums of the speeds of corresponding periods are equal at every instant to the speed of the primary motion and each periodic motion has constant amplitude, the periodic motions are each multiplied mechanically by the same variable ratio, at least one periodic motion is reversed during one half-period every alternate half period and the transformed motions are mechanically summed to obtain an output motion homo-kinetic with the primary motion. The analysis of the primary motion may be the use of a planetary system with non-circular gears or by mutilated toothed gearing of the type described in Specification 745,647. The periodic motions so produced are modified by a device comprising toothed racks coupled by levers, the pivotal point of which is adjustable. A differential assembly co-operating with a periodic locking system reverses one periodic motion for one half-period during alternate half-periods and a further differential assembly is employed for the summation of the periodic motions to produce the final motion.
Patent GB-675766-A (GB)
Title: Improvements in suppression of spurious oscillations in electron discharge devices
IPC: H01J25/68
Filed: 1949-02-21
Abstract: 675,766. Electric discharge tubes. DU MONT LABORATORIES, Inc., A. B. Feb. 21, 1949 [Feb. 21, 1948; Feb. 8, 1949], Nos. 4695/49 and 4696/49. Class 39 (i). [Also in Group XL (b)] In an electronic amplifier circuit in which periodic negatively-polarized pulses appearing at the anode of a thermionic tube give rise to Barkhausen oscillations, the oscillations are suppressed by a magnet so positioned as to provide a magnetic field having a component transverse to a path for electrons in the tube. Fig. 1 shows a television beam deflection tube having a cathode 1, a control grid 2, an accelerating grid 3, beam forming plates 4 and an anode 5. When this tube is used as a horizontal deflection amplifier tube, the accelerating grid 3 is positively charged and the voltage wave 9 applied to the control grid has sharp negative pulses 20 which momentarily render the tube non-conducting and cause the current in the inductive anode circuit to render the anode voltage 19 periodically negative as indicated at 22, giving rise to Barkhausen-Kurz oscillations. The provision of a magnetic field as indicated, is stated to prevent the build-up of these oscillations by bending the path of the electrons so that as they reverse their direction of travel they are easily attracted to the positivelycharged grid 3. In Fig. 1 and Figs. 3, 4 (not shown), an external permanent magnet may provide the field, whilst in Fig. 2 (not shown), a current-carrying coil is arranged about the tube. Alternatively, the source of the magnetic field may be provided internally by permanently magnetizing the beam-forming plates 4, Fig. 5 (not shown), or by securing bar magnets to the anode 5, Fig. 6 (not shown). It is also suggested that the magnetic field could be provided by locating the tube adjacent the focusing coils for the cathode-ray tube in the television receiver.
Patent GB-105111-A (GB)
Title: Improvements in Devices for Locating the Direction of a Source of Sound, particularly for use on Ships.
Inventor: WHITE GEORGE DOUGLAS
IPC: G01S1/72
Filed: 1916-03-30
Abstract: 105,111. White, G. D. March 30, 1916. Locating sounds.-In apparatus for determining the direction of a source of sound, particularly for use on ships in a fog, a receiving-horn a provided with a microphone is rotated by a motor 7, and an indicating-pointer 9 moves synchronously with the horn a over a dial 8. An adjustable pointer 65 is set by hand, as the horn rotates, to register the position of the pointer 9 corresponding to the receipt of maximum sound, thus indicating the position of the horn when directed towards the source of sound. Means are provided also to give, at will, limited rotation to the microphone to prevent packing of the resistance medium. Tho motor 7 carrying the horn is supported on a gimbal mounting in a suitably exposed position, the indicator, Fig. 4, being preferably within the pilot-house. The motor shaft carries insulated rings 21 and an arm 27 adapted to make contact, in succession, with insulated segments 18 arranged within the ring 16. Each contact 18 is in circuit with one of a number of electro-magnets 32 (one shown) arranged in a circle within the indicator, so that the magnets 32 are energized successively as the arm 27 rotates. The spindle of the pointer 9 carries an armature 30 adapted to pass between the polepieces of the electro-magnets, so that the movement of the arm 27 is copied by the pointer 9. The microphone casing 40 is capable of limited rotary movement and has teeth 45 engaged by a rack 43 carried by the core of a solenoid 41. The core is depressed when the solenoid is energized on closing a push-button switch in its circuit, and is raised by a spring when the switch is opened. Insulated brushes 23' carried on a standard 24 make contact with corresponding in. sulated rings 21 carried by the motor shaft. The top ring 21 is connected to the arm 27 in the indicator circuit. The second ring is in circuit with the solenoid 41. The two remaining rings are respectively connected to the electrodes of the microphone, and their brushes are connected through a battery with a telephone receiver. A modification is described in which the indicator pointer is driven by the motor through bevelgear and flexible shafting.
Patent GB-1060272-A (GB)
Title: Improvements in or relating to highly refractive refractory glass articles
IPC: C03C12/02
Filed: 1964-02-04
Abstract: Refractory light-transmitting articles of glass having refractive index (nD) of at least 2.1 are not more than 2 mm. thick.  The glass composition contains at least two oxides and by weight satisfies all the following requirements: (a) at least 75% consists of one or more metal oxides each -ith m.p. above 1800 DEG  C.; (b) at least 60% consists of one or more of CaO, SrO, BaO, Sc2O3, Y2O3, La2O3, TiO2, ZrO2 and HfO2; (c) at least 50% consists of TiO2; (d) no more than 15% consists of one or more metal oxides volatilizing at up to 1800 DEG  C.; and (e) if present, CaO does not exceed 20%.  Other oxides may be present in ranges given in the Figure (not shown).  nD may be up to 2.7 or more.  The raw materials, which may be in the form of e.g. chlorides, carbonates or organic salts are pulverized and blended, e.g. by milling in a volatile liquid, e.g. water; an organic burn-out binder may be added.  The material is then dried, e.g. in such a manner as to form small articles, for example by spraying into a dry hot atmosphere, e.g. 370-1600 DEG  C., or by drying into a cake and sintering at 1000-1600 DEG  C.  The articles are then heated, e.g. in a plasma jet at 2700-16,200 DEG  C. to convert them into a homogeneous amorphous state.  The articles may then be quenched in air or by water-spray, when speroidal particles are formed; or the particles may impinge upon a surface at room or air temperature with the formation of fibres or flakes.  The glass particles may contain up to 5% of ingredients in crystalline form.  If dark in colour they may be heated in air to a colourless state by oxidation of any reduced Ti to the tetravalent state.