baber/WOPTO huggingface dataset:
Patent GB-966775-A (GB)
Title: Extrusion die
IPC: B21C25/02
Filed: 1961-12-21
Abstract: 966,775. Extrusion dies. E. I. DU PONT DE NEMOURS & CO. Ltd. Dec. 21, 1961 [Dec. 23, 1960], No. 45794/61. Heading B3P. A die for hot metal extrusion comprises a rib 21 of refractory material tightly encased in a housing 22 of elastic metal which imposes a radially inward pressure on the rib thereby reducing its tendency to tensile fracture. The rib is made of sintered metal silicides as described in Specification 966,774 and the housing 22 of steel. An intermediate ring 23 of stainless steel may be provided to protect the rib from excessive compression imposed by the housing. Ring 23 has an expansion coefficient greater than the rib and housing which ensures that the rib remains tightly encased at elevated temperatures. The housing may be in two parts, Figs. 6, 6a (not shown). Ring 23 may be omitted, Figs. 3, 7 (not shown), and in this case the rib 21 is slightly tapered in three steps on its external surface and is pressed into the tapered bore of the housing, Fig. 2 (not shown). The die may have an orifice of fluted shape, Fig. 8 (not shown). During extrusion a lubricant consisting of colloidal graphite suspended in light oil is used. Many examples are given for the extrusion of brass, copper, nickel-chrome alloy, nickel-chromium-thoria alloy, niobium and various steels.
Patent GB-1286116-A (GB)
Title: Improvements in pipe seals
Inventor: HAIM GEORGE
IPC: F16L37/05
Filed: 1969-09-18
Abstract: 1286116 Joint-making packing G HAIM 20 Nov 1970 [18 Sept 1969] 45962/69 Heading F2B A pipe sealing ring comprises interlinked symmetrical parts interconnected by bolts which pass through aligned apertures in interconnecting lugs 1, 2 and 3, the joined parts being sandwiched between pressure-plates through which the bolts pass so that by tightening the bolts the parts are compressed and spread into sealing contact with both a pipe and a surrounding structure or pipe. The bolts may be provided with a tapered shaft portion to reduce leakage.
Patent GB-1005545-A (GB)
Title: Process for separating liquid from solid glycerides
IPC: C11B7/00
Filed: 1962-12-06
Abstract: The subsequent removal of higher melting fatty material from glyceride oils is facilitated by the addition of 0.001-1%, by weight of the oil, of a saturated C14- 22-fatty acid ester of glucose, gluconic acid or glucono-d -lactone. The fatty acyl group present in the additive is preferably derived from palmitic and/or stearic acid; preferred additives are glucose pentapalmitate, glucono-d -lactone mono-palmitate, a mixture of gluconic acid tri- and tetrapalmitate, and the ester derived from 1 mol. glucose and 2-3 mols. palmitic acid.  Oils which may be so treated include cottonseed oil, hydrogenated or directedly re-arranged soyabean oil, corn oil, and palm and palm kernel oil. The oil and additive may either be heated together until all the fatty material present is liquid before being cooled, or, alternatively, the oil may first be completely liquified by heating and the additive then added.  Specifications 574,807 and 604,136 is referred to.
Patent GB-1027329-A (GB)
Title: Tubeless tire
IPC: B60C9/02
Filed: 1964-11-19
Abstract: 1,027,329. Pneumatic tyres. GOOI)YEAR TIRE & RUBBER CO. Nov. 19, 1964 [Dec. 16, 1963], No. 47124/64. Heading B7C. A tubeless tyre inbludes a carcass 30 and an elastomeric liner extending from one bead toe to the other and reinforced with discrete, discontinuous lengths of filamentary material between “ and 1“ inches long each entirely surrounded by the liner elastomer. The filamentary material may be orientated in any desired direction. The tyre may include bias-cut carcass plies and bias-cut liner plies (Fig. 4, not shown). A reinforced liner 31 may be covered interiorly with an elastomeric liner 33 containing no reinforcement. The reinforced liner may be extended around the beads to serve also as a chafer strip. The filamentary material may be rayon, nylon, wire or glass. The liner may incorporate between 1 and 10% filaments by weight and may be between 0À060 and 0.120.inch thick.
Patent GB-1162217-A (GB)
Title: Multiphase Inverter
IPC: H02M7/515
Filed: 1966-10-21
Abstract: 1,162,217. Inverters. LICENTIA PATENTVERWALTUNGS-G.m.b.H. 21 Oct., 1966 [29 Oct., 1965 (2)], No. 47297/66. Heading H2F. A multi-phase inverter includes in each phase a bridge of two controlled power rectifiers and two controlled turn-off rectifiers, the bridge diagonal comprising a series LC circuit with the capacitor adjacent to the turn-off rectifiers. Fig. 2 shows such an inverter with power rectifiers 1-6 and turn-off rectifiers 13- 18, the former being shunted by oppositely poled diodes 7-12. Communication is effected by the series circuits CD, the inductance of D being controlled by bias windings L. Voltage for the latter is supplied by separate D.C. sources U1-U3 in opposition to the voltages across inductors Lv in the phase outlets, so that the cores of the inductances D are below saturation at full load current but tend towards saturation as the load current decreases. Resistors R aid the charging of capacitors C.
Patent GB-980108-A (GB)
Title: Nitrile-containing polysiloxanes
IPC: C08G77/04
Filed: 1962-12-18
Abstract: The invention comprises compounds of the formula <FORM:0980108/C3/1> where n and a are each 0 or 1, R is a monovalent hydrocarbon or halogenated hydrocarbon radical, and R1 is an alkylene or arylene group.  They are prepared by the reaction of tetraphenyl disiloxane diol-1,3 or hexaphenyl trisiloxane diol-1,5 with the appropriate nitrile-containing organo dihalosilane Ra(R1CN)2-aSiX2, where X is halogen in an inert solvent in the presence of a hydrogen halide acceptor, e.g. a tertiary amine, in particular pyridine.  The hydrohalide precipitate is removed, then the solvent, and the product is recrystallized.  Polymers containing the recurrent unit <FORM:0980108/C3/2> where n, a, R and R1 are as defined above, are prepared by heating the compounds (I) alone at 300-375 DEG  C., or, preferably, with a catalyst at 110-170 DEG  C.  A suitable catalyst is a 0.01-1% solution of KOH in octamethyl cyclotetrasiloxane, amounting to 10-100 p.p.m. of KOH in the monomer.  The polymers have M.W.'s of 10,000 to 5,000,000, and are soluble in benzene or toluene. In the same way copolymers can be made from mixtures of compounds (I) with themselves or other cyclic polysiloxanes or cyclic siloxane-silphenylenes, e.g. those of Specifications 980,101, 980,102, 980,103, 980,104, 980,105, 980,106, 980,107 and 980,109. Homopolymers of units (II) are best cross-linked by irradiation, e.g. with 50,000-20,000,000 eV electrons, and copolymers containing vinyl groups or adjacent methyl groups may be cured by irradiation or by conventional free radical (e.g. peroxide) curing agents.  Fillers may be added before cure, if required, and may suitably be silica (aerogel, fumed, precipitated), glass fibres, TiO2, Fe2O3, Cr2O3, CaCO3, CaSiO3, CdS, lithopone, carbon black, asbestos, talc, &c. The examples describe the preparation and polymerization of 1-methyl-1 - b  - cyanoethyl - 3,3,5,5 - tetraphenyl cyclotrisiloxane, 1 - methyl - 1 - m - cyanophenyl - hexaphenyl cyclotetrasiloxane and 1,1-bis-(b - cyanoethyl) 3,3,5,5 - tetraphenyl cyclotrisiloxane, and the preparation of g -cyano-propyl - heptaphenyl cyclotetrasiloxane and its copolymerization with hexaphenyl cyclotrisiloxane, and the cure of the polymers by irradiation.
Patent GB-1067192-A (GB)
Title: Improvements in or relating to gas stream distributors
IPC: F23K3/00
Filed: 1963-10-10
Abstract: 1,067,192. Pneumatic conveyers. KOPPERS CO. Inc. Oct. 10, 1963 [May 21, 1963], No. 47927/66. Divided out of 1,087.191. Heading B8A. A distributer for dividing a stream of pneumatically conveyed particulate material comprises a cylindrical casing 744, Fig. 2, containing a pair of knife-edge partitions 760, 762, which bisect each other on the longitudinal axis of the casing and divide the flow from inlet pipe 40 so that it passes through symmetrical channels to outlets 728-734. Opposite pairs of outlets 732, 734 are connected together to form a single pair of outlets 44, 44<SP>1</SP>. A flanged member 484 carrying the outlets is rotatably adjustable at slotted bolt holes 780 to adjust the streams.
Patent GB-1153355-A (GB)
Title: Improvements in or relating to Apparatus for Automatically Classifying Electrical Components.
Inventor: ANDREEV JURY NIKOLAEVICH
IPC: B07C5/344
Filed: 1967-10-23
Abstract: 1,153,355. Testing and sorting resistors. J.N. ANDREEV, V.I. KVASOV, N. N. SEREDINA, A.K. LEONTIEV and T.F. CHIZHIKOVA. Oct.23, 1967, No.48035/67. Heading G1U. In an arrangement for the automatic sorting of components such as resistors, the resistors are first tested and then directed on to a conveyer system which is controlled by a memory unit so as to drop the resistors into one of several receptacles according to their value. The resistors are dropped from a hopper 1 on to a disc 2 and tested at a measuring station 3, connected to a measuring device 4. The latter controls electromagnet 13, 14 which transfer the resistors on to one of'the racks 16, 17 on a conveyer 18 according to their value, or, if the resistors are faulty, into a reject bin 21. The measuring device 4 also controls a memory unit mounted on the same shaft as the conveyer 18 and the memory unit causes electromagnet 24 to open gaps 23 on the conveyer so that the resistors fall into one of the receptacles 28, 29. The memory unit includes stationary electromanget 5 which moves pins 11 mounted on the rotating part 9 into one of two positions and those pins that protrude move round to engage contact 27 connected to the electromagnet 24.
Patent GB-1535796-A (GB)
Title: Pre-adjusted control module for construction vehicles
IPC: E02F9/20
Filed: 1976-11-18
Abstract: 1535796 Linkwork CATERPILLAR TRACTOR CO 18 Nov 1976 [8 April 1976] 48171/76 Heading F2K A pre-adjusted control module 10 comprises a bracket assembly 13 adapted for attachment to a support structure of a construction vehicle. A control lever 12 is pivotally mounted within the bracket assembly along with a bellcrank 19 having a roller 25 mounted on a first arm 22 thereof. The roller is adapted to selectively engage either one of two notches 27, 28 formed on a lower end of the control level and is biased in that direction by a tension coil spring 29 connected between the bracket assembly and a second arm of the bellcrank. A control rod 33 is reciprocally mounted in the bracket assembly and has its first end 34 pivotally connected to the control lever and is adapted to have its second end 35 connected to a self-centering valve spool of a directional control valve. A preadjusted sensing means 37, including a compression coil spring, is connected between the bracket assembly and the control rod to alert the operator upon approach of one of the two detent positions of the control lever, as effected by engagement of the roller with one of the two notches formed on the control lever.
Patent GB-1589493-A (GB)
Title: Speech recognition
IPC: G10L15/02
Filed: 1977-11-23
Abstract: A speech recognition system is realized by applying a speech signal to a feature extractor wherein a sequence of predetermined features representing the speech signal are determined, and by comparing the determined features, in an acceptor, to predetermined sequences of features which represent selected words. One attribute of the feature extractor is the ability to represent certain classes of sounds in terms of the position and direction of motion of the movable structures of a human vocal tract model, such as the position and direction of movement of the speaker's tongue body. The tongue body position is derived by determining the formant frequencies in the applied speech signal and by employing the Coker vocal tract model to find the tongue body position which best matches the determined formants.
Patent GB-1412285-A (GB)
Title: Plate type heat exchanger
IPC: F02C7/08
Filed: 1972-10-24
Abstract: 1412285 Plate heat exchangers CURTISSWRIGHT CORP 24 Oct 1972 [1 Nov 1971] 48965/72 Heading F4S Arcuate fins in a fluid passage formed between adjacent plates 60, 62 in a plate heat exchanger, are in rows each extending in the general direction of fluid flow through the passage. Each fin extends from one plate towards the opposite plate and is in abutment at two spaced points with neighbouring fins. As shown, the fin rows 72 alternate in the plate interspace with the fin rows 74. The free end of each fin abuts the root region 76 of one neighbouring fin and at the same time abuts at a mid-point B another neighbouring fin. The respective fluid flows in neighbouring fluid passages are parallel in the arrangement shown. Alternatively the fins in alternate passages may be disposed to provide for cross flow of the respective fluids. The apparatus is particularly intended for the heating of air by turbine exhaust gases, the heat exchanger then comprising an annular array of hollow plates Fig. 2.
Patent GB-1453452-A (GB)
Title: Ticket printing
IPC: B41J11/68
Filed: 1973-10-24
Abstract: 1453452 Selective printing; manifolding webs DI AN CONTROLS Inc 24 Oct 1973 [24 Oct 1972] 49644/73 Headings B6F and B6A [Also in Division G4] A drum printer for printing multi-part airline tickets receives continuous stationery 14, Fig. 2, prints selected matter thereon by hammers 17, Fig. 1, co-operating with a print drum 16, and includes a cutter 182 severing the marginal portions of the stationery. A further cutter 68 separates the stationery into sections. Stationery.-The continuous stationery 14 comprises a plurality of layers having registering sprocket holes 112. The layers are joined by adhesive in regions 116 and along the edges of the stationery. The marginal portions are joined to the central portion by perforations 110. When cut along lines 92, airline tickets are formed.
Patent GB-1126090-A (GB)
Title: Improvements in or relating to electric wall boxes
Inventor: APPLEBY CECIL MAURICE
IPC: H02G3/16
Filed: 1966-11-05
Abstract: 1,126,090. Switches cases. H. &L.APPLEBY Ltd. 5 Nov., 1966, No. 49680/66. Heading H1N. A wall box has sliding adjustable brackets 17 having tapped bores 27 for cover-plate screws and held in the box by retaining members 23 bent up from the base 11. Each bracket has a limb 18 lying against the box side, e.g. 13, and a perpendicular limb 19 maintained against the base 11 by a portion 24 of each member 23. Stops provided by deforming base 11 limit sliding movement of brackets 17. A screw 29 provides means for clamping an earth wire thereto, as in Specification 1,126,089.
Patent GB-1034492-A (GB)
Title: Fluorinated epoxides and a process for their preparation
Filed: 1964-12-08
Abstract: Carbonyl fluoride is formed as a by-product when a halo-olefin of the formula CF2 = CFX wherein X is H, F, Cl, CF3, CF2H, CF2Cl, C2F5, CF2CF2H or CF = CF2, is heated with oxygen at superatmospheric pressures in the presence of an inert solvent at a temperature of from 50 DEG  to 200 DEG  C.ALSO:Epoxides of the general formula <FORM:1034492/C2/1> wherein X is H, F, Cl, CF3, CF2H, CF2Cl, C2F5, CF2CF2H or CF2COF, are prepare by CF2 = CFX, wherein X is H, F, Cl, CF3, CF2H, CF2Cl, C2F5, CF2CF2H or CF = CF2, with oxygen at superatmospheric pressure in the presence of an inert solvent at a temperature of from 50 DEG  to 200 DEG  C.  The invention also comprises the compounds <FORM:1034492/C2/2> and <FORM:1034492/C2/3> Perfluorocyclopropane or derivatives thereof are formed as by-products, probably by the reaction sequence.  <FORM:1034492/C2/4> Examples are given.
Patent GB-1140634-A (GB)
Title: Process for the production of titanium dioxide
Inventor: CURTIS EDWARD JOSEPH
IPC: C01G23/07
Filed: 1967-11-02
Abstract: 1,140,634. Titanium dioxide. FABRIQUES DE PRODUITS CHIMIQUES DE THANN ET DE MULHOUSE and CABOT CORP. 2 Nov., 1967, No. 49961/67. Heading C1A. Titanium dioxide is prepared by reacting titanium tetrachloride with a free-oxygen containing gas at a temperature above 800‹ C. in the presence of between 0À05 and 5À0% of titanium tetrabromide by weight of the titanium tetrachloride, auxiliary heat being provided by burning a fuel gas such as carbon monoxide with a free-oxygen containing gas. The free-oxygen containing gas may be oxygen or oxygen-enriched air. Any conventional metaloxides producing reaction chamber can be used. In an example, oxygen and carbon monoxide are introduced separately into a conventional corrosion resistant reactor. The mixture ignites in the reaction zone and together with electrical heating heats the reactor to 900‹ C. Titanium tetrachloride vapour at about 180‹ C. containing titanium tetrabromide and additional oxygen are charged into the reaction zone through separate inlets. Pigmentary titanium dioxide particles having uniform average particle diameter between 200 and 400 millimicrons and free from contaminants are produced.
Patent GB-1465210-A (GB)
Title: Handling device for pulling tubes on mandrels of bending machines
IPC: B21D43/00
Filed: 1974-11-19
Abstract: 1465210 Loading bending machines PRVNI BRNENSKA STROJIRNA NARODNI PODNIK 19 Nov 1974 50031/74 Heading B3E Apparatus for loading a tube into the mandrel 13 of a bending machine comprises a slider movable parallel to the mandrel axis, a pair of arms 3 pivotable on the slider by a motor 1, and jaws 8 on the arms for gripping the tube. As shown, the slider comprises members 5 and connecting plate 9 on which motor 1 is mounted, and is reciprocable along guides 10 by the rod 12 of a fluid pressure piston and cylinder. The guides 10 are adjustable bodily in the vertical direction to align the jaws with a diameter of the tube, and small inaccuracies are accommodated by mounting the jaws on pivots 7. In use, the tube is located into the end of the mandrel by a crane, and is then advanced along the mandrel by operation of the apparatus in reciprocating gripper fashion. Unloading proceeds similarly.
Patent GB-1171634-A (GB)
Title: A method of preparing pencil leads
IPC: B43K19/18
Filed: 1966-11-08
Abstract: 1,171,634. Pencil lead. DAINIHON BUNGU K.K., [trading as JAPAN STATIONERY CO. Ltd.]. 8 Nov., 1966 [10 Nov., 1965], No. 50056/66. Heading B6P. [Also in Division C1] A pencil lead comprises carbon black particles, graphite and/or mica particles and carbonized material acting as binder, the carbonized material being derived from a synthetic resin, a solvent for the resin and a plasticizer for the resin. The lead is formed by kneading a mixture of carbon black particles, graphite and/or mica particles, a synthetic resin, a solvent for the resin and a plasticizer for the resin, extruding the mixture to form the lead, heating the mixture up to 300‹ C. sufficiently slowly to avoid cracking and thereafter heating at 800- 1400‹ C. to carbonize the resin, solvent and plasticizer to form a binder for the lead. The resin may be polystyrene, silicone resin, polyethylene, acrylic resin, melamine resin, phenol resin, urea resin, polyisobutylene, a polyester, polyvinyl chloride, vinyl chloride/acetate copolymer, a polyvinyl resin, a stearate resin or a mixture of two or more thereof. In an example vinyl chloride resin is used together with methyl ethyl ketone solvent. The heating may be in an evacuated oven or in an inert atmosphere, e.g. nitrogen.
Patent GB-1201399-A (GB)
Title: Classifier or translator for automatic character recognition
IPC: G06V10/75
Filed: 1968-10-23
Abstract: 1,201,399. Character recognition. INTERNATIONAL STANDARD ELECTRIC CORP. 23 Oct., 1968 [24 Oct., 1967], No. 50369/68. Heading G4R. A classifier for character recognition has a magnetic core K1, K2 ... or K15 respective to each point of a raster scan of the character set according to the black/white state of the point a1 ... e3 and a read-out wire respective to each possible pair of characters to be recognized threading selected cores, the read-out wires going to respective detection circuits #, the outputs of which are combined in AND gates, one per possible character. In Fig. 2, two readout (row) wires are provided to distinguish between each pair of characters. The wire of each pair having the larger signal is detected in the respective detection circuit # to energize one of two lines to the AND gates. In a modification, each pair of row wires is replaced by a single wire, the polarity of the signal on which is detected.
Patent GB-1098462-A (GB)
Title: Treatment of tow
IPC: A24D3/02
Filed: 1964-12-11
Abstract: 1098462 Treating filamentary tow EASTMAN KODAK CO 11 Dec 1964 [11 Dec 1963] 50471/64 Heading B5B [Also in Division D1] In a method of applying solid particles to a tow of continuous filaments, a dispersion of the solid particles in an aqueous binder is applied to the tow, which is then compressed to squeeze out excess dispersion and force the particles into contact with each other and/or the filaments, and the compressed tow is then dried. The filaments may be of cellulose acetate, regenerated cellulose or polyethylene, and the dispersion may comprise carbon particles in aqueous adhesive compositions of dextrin, methyl or ethyl cellulose, sodium carboxymethyl cellulose, poly saccharide gum, starch, urea or melamine/ formaldehyde condensates, polyvinyl alcohol or polyvinyl acetate. The dispersion may be applied by contacting the laterally-spread tow with a roller partially immersed in a constant level liquid bath, or by passing the tow under such a roller. Excess dispersion may be removed by providing nip rolls associated with the partiallyimmersed roller, Figs. 5 and 6. In Fig. 5 the surfaces of rollers 20 and 22 may be stainless steel or one or both of the rollers may be provided with a sleeve of, e.g. rubber or polytetrafluorethylene. The tow may be crimped as initially supplied, but additional crimp may be obtained if at least one of the rollers 20, 22 is rubber-covered, especially if the liquid bath contains a softening agent for the tow. The tow may be dried by passing it on a conveyer belt in tensionless state between heat sources disposed above and beneath the tow, or by passing it over and under a series of heated drums, or by passing it over endless belts in a multiple-pass conveyer oven. The tow may be used to form tobacco smoke filters. In one embodiment, Fig. 2 (not shown) a bloomed tow from bale 12 passes via banding jets 14, 18 to the nip of rollers 20, 22 where dispersion is picked up from roller 22 partially immersed in bath 30, excess liquid being removed by pressure roller 20. Trough 28 is maintained at constant level. The compressed and bonded tow is dried by heat sources 44, 46, removed from conveyer 42, by rolls 48, 50 and is passed to stuffer jet 56 and to paper wrapper and rod former 58.
Patent GB-506041-A (GB)
Abstract: 506,041. Hasp fastenings. KENNEDY, E. N. Nov. 8, 1938, No. 31820/37. [Class 44] In a hasp fastening for suitcases and the like of the kind in which release is effected by nipping together a pair of knobs or similar members, the members are pivoted on fixed pins on which are also pivoted the catch members for securing the hasp. As shown, the hasp plate a spring hinged to an attachment plate b has a pair of hook-like projections c which pass through separate apertures into the casing f, where they are engaged by the portions m of a pair of catches under the action of springs k. Members j are pivoted on pins g on which are also pivoted the external releasing knobs h. The ends n of catches j have off-set projections extending through a slot in the casing into the paths of parts o provided on the knobs, so that by nipping knobs together the catches are rocked to release the hasp. Locking may be effected by any suitable lock, but as shown an oval plate q, rotatable by key, is disposed so that when the major axis is in line with parts n operation of the knobs is prevented. With the minor axis in line, there is sufficient clearance to allow knob operation. Plate q is retained in each of its positions by a spring s acting on the flats of a square part r. Alternatively, a lock of the form described in Specification 506,040 may be used.