baber/WOPTO huggingface dataset:
Patent GB-881808-A (GB)
Title: Improvements in and relating to the manufacture of titanium dioxide
Inventor: WIGGINTON RAYMOND JAMES
IPC: C22B34/12
Filed: 1956-12-04
Abstract: Titanium dioxide, titanium sulphate, and titanium concentrates may be prepared from titanium-bearing ores containing iron by treating the ore with a reducing agent to reduce at least 80% of the iron to the metal, without forming a liquid slag, and removing metallic iron, a quantity of a titanium-bearing ore containing 20-60% of titanium calculated as TiO2, and also containing iron, being added to the reduced ore, either before or after removal of the iron, the extent of reduction and the amounts of iron removed and ore added being such that in the concentrate so obtained, the percentage of iron compounds present is at least 30% calculated as Fe and based on the total iron present, and the TiO2:Fe ratio is from 2:1 to 6:1.  The concentrate may then be sulphated to obtain a dry and friable water soluble cake of titanium sulphate, which may be dissolved in water and hydrolyzed to obtain titanium dioxide.  The original ore and the added ore may be ilmenites.  The metallic iron may be removed by dissolution, for example with dilute hydrochloric acid, an aqueous solution of ferric chloride, or dilute sulphuric acid, which may be the liquor remaining in the hydrolysis of the titanium sulphate solution, and is preferably effected at at least 70 DEG  C. and at superatmospheric pressure.  Alternatively, the metallic iron may be removed by grinding the reduced ore and separating by mechanical or electro-mechanical means, for example by elutriation or electromagnetic means, in which case it is advantageous to carry out the reduction in the presence of materials which assist in separating the metallic iron, for example, calcium fluoride, boron compounds, for example, boron oxide or boric acid, a mixture of a boron compound with a phosphate-containing material, or a sodium compound, for example, sodium hydroxide or sodium chloride.  The sulphuric acid employed for the sulphation may be used in the form of oleum, and the sulphation may be carried out in a pug mill in which the detention time is low and the discharge from the mill is by gravity. Specification 835,880 is referred to.
Patent GB-522912-A (GB)
Title: Improvements relating to mulling machines
IPC: H01M4/20
Filed: 1938-12-20
Abstract: 522,912. Mulling-machines. SIMPSON, B. L. Dec. 20, 1938, No. 37096. Convention date, June 20, [Classes 59 and 86] A machine for mulling and mixing paste for making' accumulator plates comprises an edge runner in which (a) the pressure of the roller on the pan can be received and scrapers are provided for the pan wall, the roller and the turret (b) the pan is covered and means are provided for supplying cooling air and' exhausting the fumes and dust, and (c) means are provided for supplying a liquid to the mix. (a) The roller 29 is carried by a pivoted arm 21, Fig. 3, furnished with an overhanging projection 25 fitted with an adjusting screw. The arm 21 is carried by a cross shaft 20 which also supports an arm 34 to which is attached a plough 38 which engages the wall of the pan ; a further scraper 42 is supported by springs 39. The turret is scraped by a plough 48 also carried on the arm 34. The roller is cleaned by scrapers 55, 56 mounted on an extension of the arm 21. (b). The pan 14 is covered by. an enclosure 99, Fig. 1, fitted with doors 100 and with a roof 101 having an exhaust pipe 102 and a valved pipe 105 through which the pan may be charged. The inside of the enclosure is fitted with chambers 107, Fig. 8, to which air under pressure is supplied and which are fitted with depending pipes 110'for supplying the air to the region of the material in the pan. (c) A funnel 92, Fig. 3, is provided for feeding liquid, a branch 94 leading the liquid to the material.
Patent GB-1043959-A (GB)
Title: Improvements in and relating to reinforced plastic pipe or plastic hose
IPC: F16L11/08
Filed: 1965-08-31
Abstract: 1,043,959. Reinforced plastic pipes. A. D. BERLE, and T. MIKKELSEN. Aug. 31, 1965 [Nov. 21, 1964], No. 37225/65. Heading F2P. [Also in Division D1] A pipe or hose comprises extruded inner and outer layers of plastics material such as polyvinyl chloride and an intermediate braided reinforcing layer 13 of thin, broad fibre strips 11b, 12b formed from threads 11, 12 having a total denier of at least 720 and containing a large number of continuous artificial fibres, the reinforcing layer wholly or substantially wholly covering the inner plastics layer. The threads initially have a weak binding twist and during braiding are turned outwards so that the fibres when applied to the inner layer of the hose spread out in the transverse direction of the threads as a thin broad strip.
Patent GB-1049818-A (GB)
Title: Electrical phase shift circuit
Inventor: DANBY CHARLES GABRIEL
IPC: H03H11/18
Filed: 1964-09-14
Abstract: 1,049,818. Phase control circuits. BROOKDEAL ELECTRONICS Ltd. Sept. 13, 1965 [Sept. 14, 1964], No. 37413/64. Heading H3A. A phase shifting circuit comprises a phase shift network CR and a phase comparator 8 fed with the input to, and the output from the phase shift network to produce an error signal which controls a variable element in the phase shift network so as to maintain the phase shift at 90 degrees. The variable element may be a voltage variable capacitor, photo-resistor, field effect transistor, or transductor.
Patent GB-1478716-A (GB)
Title: Frying food
IPC: A23L5/10
Filed: 1974-08-27
Abstract: 1478716 Liquid heating vessels C SCHMID 27 Aug 1974 [25 Sept 1973] 37492/74 Heading F4X In a method of frying food in which the food e.g. (in a container 6) is fried in a bath 1 of heated oil comprising a zone at the top of a tank 2, the oil flows in a circuit in which it is cooled by contact with the food whereafter it is immediately withdrawn from the bath, reheated by heating means, and returned to the bath, the heating means being controllable (e.g. thermostatically by probes 4, 54, 55, 56 situated in the oil path). As shown, e.g. in Fig. 6 a natural convection circuit for the oil is formed in the tank 2 by a hollow baffle member 9 positioned in a central zone of the tank 2 beneath the bath 1. Cooled oil from the bath descends via a passage 34 and returns to the bath via a passage 32 the wall of which is heated by a burner 20. The thermostat probes 54, 55 and 56 (and see Fig. 5) cause the burner to be operated so as to maintain the oil between predetermined minimum and maximum temperatures. Waste cooking material collects at the bottom of the tank 2 in a chamber 25, which is provided with a drain cock (27, Fig. 4) External fins 17 are provided on that portion of the tank wall which forms the duct 32. In one modification (Fig. 7) the tank contains two of the hollow baffle members (viz. 64, 65) separated by a space (66) which forms the descending passage for the cooled oil, two ascending passages (67, 68) for the returning oil being formed one between each said baffle and adjacent wall (62, 63) of the tank, each said adjacent wall being individually heated by an electric resistance heater (E1 or E2). In this arrangement electric resistance heaters may be disposed also within the hollow baffle members. In another modification (Fig. 9) both the tank (73) and the hollow baffle member (74) are of circular cross-section, the descending passage (75) for cooled oil extending centrally of the baffle member, and an annular ascending passage (76) being formed around the baffle member between it and the heated portion of the tank wall.
Patent GB-339116-A (GB)
Title: Improvements in two-stroke cycle internal combustion engines
IPC: F02B75/02
Filed: 1929-12-07
Abstract: 339,116. Landis, P. Dec. 7, 1929. Connecting-rods.-In an internal-combustion engine in which the pistons oscillate as well as reciprocate, a ball i<1>, mounted on the gudgeon-pin i, is surrounded by a two part spherical shell secured to the head of the connecting-rod h. Sheet metal plates can be inserted between the two parts for adjustment.
Patent GB-814490-A (GB)
Title: Method of forming metal fibers and filaments
IPC: B22D11/00
Filed: 1956-12-10
Abstract: 814,490. Continuous-casting processes. MAR. VALAUD Inc. Dec. 10, 1956 [Feb. 16, 1956], No. 37608/56. Class 83 (1). A method of producing metal filaments con. sists in extruding a stream of molten metal 8 into an unconfined gas jet stream 1. Molten tin, lead, zinc or other metal from a reservoir 5 is projected by pressure from a line 7 into a gasstream 1, projected from a nozzle 2. The gas may be air and the velocity from 85 to 100 ft./sec. The metal may be 1 ‹ to 50 ‹ C. above its melting point, and the velocity from 10 to 100 ft./sec. The angle between the streams may be up to 90 degrees. Several nozzles may discharge into the same air stream.
Patent GB-1434108-A (GB)
Title: Tetrafluoroethylene polymers
IPC: C10N50/08
Filed: 1973-08-08
Abstract: 1434108 Tetrafluoroethylene polymer powders MITSUI FLOUROCHEMICALS CO Ltd 8 Aug 1973 [9 Aug 1972] 37639/73 Heading C3P A powder composed of sintered particles of a tetrafluoroethylene polymer having an average particle size of 100 Á or less, a sphere factor of 1À2 or less, a specific gravity of 2À20 or less, and a weight loss on heating of 0À5% or less may be prepared by atomizing an aqueous dispersion containing 5-80% by weight total solids of tetrafluoroethylene polymer particles having an average particle size of 0À05 to 0À5 Á into a gas, which gas is at a temperature above the melting point of the polymer, thereby vaporizing the water present in the dispersion and causing the particles to coalesce and sinter, and recovering the resulting powder. In the examples aqueous dispersions containing polytetrafluoroethylene, a surface active agent of formula aqueous ammonium hydroxide and a copolymer of hexafluoropropylene and tetrafluoroethylene are spray dried in equipment similar to that used for the production of dried foods but designed to stand high temperatures.
Patent GB-857704-A (GB)
Title: Improvements in or relating to television systems
Inventor: MCMULLAN DENNIS
IPC: H04N7/167
Filed: 1956-12-10
Abstract: 857,704. Secret transmission. RANK ORGANISATION Ltd. March 5, 1958 [Dec. 10, 1956], No. 37665/56. Class 40 (4). [Also in Group XL (c)] Television programme transmitting apparatus comprises : a vision signal transmitter to which vision signals and synchronizing signals are applied; a time multiplex sound signal transmitter to respective channels of which first sound signals accompanying the vision signals and second sound signals are applied; and means whereby the first and second sound signals are repeatedly transferred simultaneously and instantaneously to other channels of the multiplex system. A television receiver for co-operating with such transmitting apparatus and comprising means for selecting the first sound signals is also disclosed. Transmitter (Fig. 1).-Vision signals from camera 1 are mixed with synchronizing signals from impulse generator 3 and modulate a transmitter 4; first sound signals from microphone 5 are directed by switches 7, 11 to one of two modulators 8, 9, and second sound signals from a source 10 are fed to the other modulator. The modulators 8, 9 are gated by a square-wave of five times the line repetition frequency which is fed in inverse polarity to the respective modulators from a device 12 coupled to the impulse generator 3; output pulses from the modulators, amplitude-modulated by the applied sound signals, thus occur alternately and the two interlaced pulse trains modulate a carrier wave in transmitter 14. The switches 7 and 11 are controlled by a device 16 so that, according to a predetermined code, the first and second sound signals are respectively transferred from one to the other of the modulators; the times of transfer being indicated in a receiver by modulating a sub-carrier provided by oscillator 17 and superimposed on the vision carrier. Receiver (Fig. 3).-The sound and vision carriers from transmitters 4, 14 (Fig. 1) are mixed with local oscillator 22 signals, and intermediate frequency amplifiers 23, 33 selectively amplify the vision and sound components respectively; the latter being gated at 32 by a square wave, of five times the line repetition frequency, produced by device 31 fed from line-scan generator 28, and which is analogous to device 12 of Fig. 1, only one pulse train thereby being fed to the amplifier 33 and thence, after detection, to loud-speaker 36. The polarity of the square-wave fed to gate 32 determines the pulse train to be selected, and this polarity is reversed by circuit 37 in accordance with the control signals from device 16 of the transmitter which are modulated upon the vision sub-carrier and are fed to circuit 37 from vision detector 24. Synchronizing and vision signals are separated at 25 and are applied respectively to cathoderay tube 26 and to synchronizing signal separator 27; the line and frame components being fed respectively to scan generators 28, 29. In another embodiment, Fig. 5 (not shown), pulse duration modulation of the sound channels is used.
Patent GB-1462596-A (GB)
Title: Radiographic apparatus
IPC: H05G1/32
Filed: 1975-09-12
Abstract: 1462596 Automatic voltage control SIEMENS AG 12 Sept 1975 [12 Sept 1974] 37683/75 Heading G3R [Also in Division H2] In a supply system for an x-ray tube comprising a rectifier 1, a bank of capacitors 2, a controllable switch 3, an inverter 6, a transformer 7 and a rectifier 12, (see Division H2), the voltage across  the tube is maintained substantially constant by comparing the voltage across the tube with a reference at 14 whose output controls the switch 3.
Patent GB-1313938-A (GB)
Title: Gas turbine engines
IPC: F01D17/16
Filed: 1970-08-06
Abstract: 1313938 Turbines; gas turbine plant BENNES MARREL 6 Aug 1970 [14 Aug 1969] 37917/70 Headings FIG and F1T In a gas turbine engine having angularly adjust-. able stator blades 16 disposed between a compressor driving turbine 2 and a power turbine 4 each blade 16 is integral with a journal 17 and a shaft 18, the latter carrying a pinion 19 meshing with a gear ring 33 for adjusting the blades. The journal 17 and shaft 18 are mounted in bearings 24, 25 housed in an extension 26 of turbine casing 23, bearing 25 being held in position by a circlip (30), Fig. 4 (not shown). The ends 20, 21 of each blade 16 and the adjacent casing parts 22, 23 have a part spherical profile. A spring (29) surrounds shaft 18 and at its lower end bears against a washer (28) in contact with the step between journal 17 and shaft 18 so as to urge the blade end 20 into sealing contact with part 22. Gear ring 33 is mounted on ball or roller races and its angular movement is effected by a hydraulically operated piston and cylinder device (41, 42) Fig. 5 (not shown). Upstream of guide blades 16 is disposed an array of struts 14 supporting a casing part 55, the struts having cooling air passages 48. Turbine 2 drives a centrifugal compressor (1), Fig. 1, 2 (not shown) which supplies air through rotary regenerators (10) to combustion chambers (12). The engine may drive a road vehicle in which case the blades 16 can be moved into position in which the combustion gases effect a braking action on turbine 4.
Patent GB-1517547-A (GB)
Title: Tobacco product containing a thermogelable beta-1,3-glucan-type polysaccharide
IPC: A24B15/14
Filed: 1975-10-14
Abstract: 1517547 Tobacco substitutes NIHON SENBAI KOSHA 14 Oct 1975 [17 Oct 1974 30 April 1975] 37996/75 Heading A2C A smoking product comprises a thermogelable #-1, 3-glucan type polysaccharide.
Patent GB-1476946-A (GB)
Title: Lorries
IPC: B60R21/00
Filed: 1974-08-30
Abstract: 1476946 Lorries; protecting vehicle occupants MITSUBISHI JIDOSHA KOGYO KK 30 Aug 1974 38110/74 Heading B7B The load-containing body of a lorry is connected to the lorry chassis in such a way that in impacts of sufficient strength the body can move relative to the chassis. Devices are present to absorb at least part of the kinetic energy of the body during the relative movement. The arrangement reduces the effect of collisions on the occupants of the lorry's cab. As illustrated, the body 4 is connected to longitudinal chassis members 3 by U-bolts 41 and by V-shaped plates 42. Each plate 42 is itself connected to the chassis by a single bolt passing through a hole 32 in the chassis. If a frontal collision causes a sufficient relative force between the body 4 and the chassis, these bolts are forced into tapered slots 31 leading from the holes 32. Distortion of the slots by the bolts absorbs energy, as does movement of the body 4 over friction plates 5. If, when the bolts have reached the ends of the slots, the body 4 has sufficient residual kinetic energy, the bolts shear and the body moves on to contact an energy transmitting member 100. The energy transmitting member 100 is a rectangular frame which is connected to the chassis by bolts passing through chassis holes from which tapered slots run in both the fore and aft directions. The frame carries the front bumper 110, includes energy absorbing metal bellows 103, and terminates at its rear end behind the cab 2 in an upright 101 which lies in the path of movement of the body 4 and which carries a further energy absorbing bellows 104. Thus, in a frontal collision, the impact transmitted to the chassis is reduced first by the action of the bellows 103 and second by the action of the frame mounting bolts in distorting their slots. Should the transmitted impact be sufficient to result in forward movement of the body 4 beyond the point where its mounting bolts shear, then the body 4 will first have energy absorbed by the bellows 104. Secondly, the body 4 will push the frame 100 forwards so that its mounting bolts distort their forwardly directed slots and so that it is forced back against the obstacle which caused the collision impact. If the body 4 thereafter retains any kinetic energy, it will hit a stop 120. The body 4 may have a rear bumper mounted on it, Fig. 8 (not shown). The effect of a rear impact is then reduced by much of the mechanism described above.
Patent GB-1495117-A (GB)
Title: Semimoist pet food containing corn molasses and process for preparing same
IPC: A23K10/33
Filed: 1976-09-15
Abstract: 1495117 Semi - moist pet food QUAKER OATS CO 15 Sept 1976 [20 Nov 1975] 38211/76 Heading A2B A semi - moist pet food containing sugar has up to 50% of the sugar replaced by corn molasses. A preferred composition con tains 5-15% corn molasses, 6-30% of sugar, 16-40% of meat or meat by-products, 15-45% vegetable protein, 2-8% of a polyhydric component, up to 1% of an edible acid, up to 0.5% of an anti mycotic, up to 10% of a fat, up to 5% of a salt. The polyhydric component may comprise propylene glycol and sorbitol, and the vegetable protein a mixture of soy grits and soy flour. Sodium carboxymethyl cellulose may be added as a binder.
Patent GB-1038359-A (GB)
Title: Roller pressure quench system
IPC: B21D3/00
Filed: 1964-09-18
Abstract: 1,038,359. Straightening sheets. DREVER CO. Sept. 18, 1964 [May 27,1964], No. 38303/64. Heading B3E. A plate or sheet 11 from a heat treatment furnace is straightened and quenched simultaneously between rollers 45 and 39 of a machine 10. The lower rollers 39 are mounted on fixed beams 14 of the machine while the upper rollers 45 are mounted on a platen 20 which is vertically adjustable by levers 29 whose inner ends are connected to a sleeve 34, hydraulically operated by a piston-rod 37. The pivot points 30 of the levers are positioned on brackets rigidly attached to the machine frame. Quench pipes 66 and 79 (Fig. 2, not shown), having nozzles 67 and 80 are positioned between the rollers, the pipes being supplied with quenching fluid from mains 71 by pumps 70. An hydraulic motor 49 drives the opposed rollers 45 and 39 in opposite directions through a chain drive. When a workpiece 11 is received on the rollers 24 of the machine it is moved under the rollers 45 which are then lowered and pressed against the workpiece. During quenching the workpiece is reciprocated longitudinally by the rollers to give complete quenching. Limit switches 108, 112, 115 and 122 are used for manual or automatic control of the machine. In an alternative from the straightening rollers are supported and driven by backing rollers and are supplied with cooling fluid in their hollow interiors. The pressure and volume of fluid supplied to the underside and upperside of the workpiece can be varied, and different sized nozzles may be used.
Patent GB-1374409-A (GB)
Title: Thiophosphoric acid ester amides a process for their peparation and their use as insecticides and acaricides
IPC: C07F9/24
Filed: 1973-08-15
Abstract: 1374409 Pesticidal thiophosphoric acid esteramides BAYER AG 15 Aug 1973 [16 Aug 1972 5 April 1973] 38512/73 Heading C2P Novel compounds having the Formula I where R, R<SP>1</SP> and R<SP>11</SP> are selected from C 1 -C 10  alkyl and C 2 -C 4  alkenyl groups, each Y is hydrogen, C 1 -C 4  alkyl or -CH 2 -C(O)-OR<SP>11</SP>, with the proviso that only one Y can be and X is oxygen or sulphur may be prepared by reacting a salt of Formula II where M is alkali metal, alkaline earth metal or optionally alkyl-substituted ammonium with a compound of Formula III where Hal is halogen.  The compounds of Formula I have insecticidal and acaricidal properties and may be used as the active ingredients in conventional pesticidal compositions.
Patent GB-1241568-A (GB)
Title: An improved process and apparatus for the expansion of a crimped yarn
Inventor: ESHUIS JANNES
IPC: D02G1/00
Filed: 1968-08-12
Abstract: 1,241,568. Opening crimped yarn. ALGEMENE KUNSTZIJDE UNIE N.V. 12 Aug., 1968 [12 Aug., 1967], No. 38551/68. Heading DIF. A knit-set-deknit crimped yarn is opened by withdrawing the yarn from a knitted fabric 1, passing through a relaxation zone 5 under a tension of less than 0.05 g/d and thereafter applying a frictional force to the yarn in its relaxed state to displace the filaments relative to one another thereby to open the yarn. The relaxation zone extends between a roller 4 for withdrawing the yarn from the fabric and the device 6 for applying the frictional force to the fabric. The peripheral speed of the withdrawal roller 4 is higher than that of the yarn to cause the roller to slip with respect to the yarn. As shown, the device 6 comprises an agate knife edge 7. Alternatively, the device 6 can comprise two parts resiliently pressed together or an aerofoil-shaped ceramic pin. After passing the friction device 6 the yarn can be advanced at a tension of at least 0.1 g/d. The yarn can be entangled and interlaced by a fluid. This treatment may decrease the bulkiness of the yarn.