baber/WOPTO huggingface dataset:
Patent GB-1035191-A (GB)
Title: Oxidation process
Inventor: ARKLESS KENNETH
IPC: C01G25/02
Filed: 1962-02-06
Abstract: In producing oxides by the vapour phase oxidation of a halide with an oxygenating gas, a gas which has been heated to above 2000 DEG  C. by passage through an electric arc is introduced into the reaction zone. The gas may be inert to the reaction, e.g. nitrogen or argon, or it may be all or part of one of the stated reactants, e.g. part of the oxygenating gas.  The heated gas is introduced into the reaction zone in a quantity sufficient to maintain in this zone a temperature at which the oxidation will occur, e.g. a mean temperature of 950-1600 DEG C. The process is described particularly for TiO2, ZrO2, Al2O3 and SiO2 utilizing the corresponding chloride together with an oxygenating gas which is or comprises free oxygen.  The heated gas may be utilized to introduce into the reaction zone crystallization nuclei, said nuclei being introduced into the gas stream from a vaporizable, oxide e.g. TiO2 or they may be the ions or activated particles existing in the gas after passage through the arc.  The arc is preferably formed between electrodes, between which the gas is passed so that it takes part in the formation and stabilization of the arc, and it has either a helical or a laminar flow path on passing through the arc.  The arc may also be produced by induction heating using a voltage in excess of 5000 volts and a frequency generator operating in the range 1 to 10 megacycles per second.  A device for producing a suitable arc is described and shown in the Figures (not shown).
Patent GB-1502784-A (GB)
Title: Piling
IPC: E05B3/06
Filed: 1976-02-03
Abstract: 1502784 Foundation piles Q A L ALANI 3 Feb 1976 [3 Feb 1975] 4626/75 Heading E1H A pile foundation for a structure 1 comprises sheet piles 2 disposed in the ground in an upright position beneath or adjacent to the structure.
Patent GB-791131-A (GB)
Title: Improvements in leaf springs for vehicles of all kinds
IPC: F16F1/18
Filed: 1955-02-17
Abstract: 791,131. Laminated springs. MOHL, S. May 15, 1956 [Feb. 17, 1955], No. 4737/55. Class 108(3) In a leaf spring of the type in which a gap is left between a longer unit comprising a larger number of thinner, longer. leaves, and a shorter unit comprising a single or a few shorter leaf or leaves, the shorter unit has a cross-section the minimum moment of inertia of which exceeds, the aggregate sum of the moments of inertia of the leaves of the longer unit. According to the Provisional Specification the cross-section of the upper part of the spring composed of thinner leaves, is circular. The camber of the heaviest leaf may be smaller at the centre than towards the ends.
Patent GB-1036982-A (GB)
Title: Application of protective or decorative coverings to panels
IPC: B29C65/48
Filed: 1965-02-03
Abstract: A laminate comprising a foamed phenolaldehyde resin core bonded at its faces to paper. metal foil or fabric is coated using an atomizer with a lacquer e.g. phenolic resin or polyester and dried by air jets.
Patent GB-452022-A (GB)
Title: Improvements in or relating to smokers' pipes
IPC: A24F7/02
Filed: 1935-02-14
Abstract: 452,022. Tobacco pipes. DUNCAN, J. L., 64, Shudehill, Manchester. Feb. 14, 1935, No. 4829. [Class 130] In a pipe having a spigot-and-socket joint, a metal sleeve 15 is embedded in the walls of the socket member 2 before boring the socket or shaping the outer surface. An annular recess is first cut in the socket member to assist the insertion of the sleeve 15, which has a flange 16 appearing as a narrow metal band between the parts 2, 3. A metal sleeve 10 is screwed at 9 into the spigot member 4 on the end of the mouthpiece 3, and has a diametral groove 14 to assist in screwing it into the mouthpiece. Specification 200,372, [Class 130], is referred to.
Patent GB-791567-A (GB)
Title: Improvements in the production of hard construction plates from polyvinyl chloride
Filed: 1956-02-16
Abstract: 791,567. Agglutinated fibrous sheet materials; laminates. CHEMISCHE WERKE HULS AKT.-GES. Feb. 16, 1956 [May 20, 1955], No. 4835/56. Class 140. [Also in Group XV] A fleece or the like of fibrous inorganic material such as mineral wool, slag wool or glass wool is impregnated, preferably in vacuo with an aqueous dispersion of polyvinyl chloride, squeezed, e.g. by a mangle, to remove excess dispersion, then dried and subjected to pressure at a temperature at which the polyvinyl chloride is plastic. The hard plates so formed can be faced with transparent or coloured foils of polyvinyl compounds during the pressing operation. Stamped brass or aluminium foils or coloured or patterned textiles may be included between the fleece and the transparent foil before hot-pressing. Specification 488,394 is referred to.
Patent GB-1491522-A (GB)
Title: Current limiting circuit
IPC: H02H3/087
Filed: 1975-02-05
Abstract: 1491522 Overcurrent protection circuits BROWN BOVERI & CIE AG 5 Feb 1975 [12 March 1974] 4865/75 Heading H2K [Also in Divisions G2-G3] A current limiter comprises a semi-conductor element V2 controllable by a semi-conductor device V1, and connected in series with a resistor R1 in a current supply conductor, the control electrode of V2 being connected to a constant current source V4, and V1 being connected across R1 and operative rapidly to render V2 non-conductive if the current in R1 exceeds a given limit. V1 may be a unijunction transistor, a thyristor, two transistors functioning as a thyristor, or a comparator with its output connected to a bi-stable circuit. The constant current source V4 may be an FET. With a voltage + U applied to input A, V2 is on, having base current controlled by V4. If the load current I K  reaches the limit the voltage drop across R1 causes V1 to conduct, which short circuits the base current of V2 and turns it off. The diode V3 prevents the voltage drop across V1 from rendering V2 conductive. Diode V5 is for voltage dipping should the load switched off be inductive ("free wheeling" diode).
Patent GB-122199-A (GB)
Title: Improved Method of and Means for Controlling the Firing of Guns on Warships.
Inventor: CLAGUE FRANK
IPC: F41A17/10
Filed: 1917-04-05
Abstract: 122,199. Clague, F. April 5, 1917. Gyroscopic apparatus. - Relates to apparatus adapted to close an electric firing circuit of a naval gun when the ship has moved through the full extent of its roll in an upward direction, or when the roll has reached a predetermined angle, of the kind in which a pendulum, which may be combined with a gyroscope, is supported on a universal joint and is connected to one contact of a switch the other contact of which moves with the ship. According to the invention the contact controlled by the pendulum is mounted on the intermediate member of the universal joint on which the pen. dulum is mounted and the frame of the instrument is rotatable about a vertical axis so that the axis of the intermediate member can be trained to lie perpendicular to the vertical plane passing through the gun and the target. In the construction shown, the pendulum M, which is combined with a gyroscope 0, is mounted by a knuckle joint N to a shaft L. The movable contact 19 is carried at the end of a pointer U carried by a shaft R geared to the shaft L by multiplying gearing comprising a toothed sector P on the shaft L, and a pinion Q on the shaft R. The contact 19 coacts with a contact 18 carried hy an arm 5 on an adjustable wheel 6 which can be set to the desired angular position by means of a hand-wheel 10 and suitable gearing. A second switch device in the circuit comprises a small insulated sector 23, Fig. 1, moving with the pendulum and engaged by two adjacent brushes 21, 22. When the pendulum swings to the right, Fig. 1, the circuit is immediately broken but when the pendulum swings to the left the switch 21, 22, 23, remains closed for about 17 degrees. The gyroscope 0 has its axis perpendicular and is driven by an air jet acting on its periphery which is formed with a series of pockets or recesses. The air under pressure is supplied to the jet through the pendulum rod and shaft L. A catch 28 operated by a lever 31 is provided for locking the pendulum in its central position.
Patent GB-1423513-A (GB)
Title: Load lifting attachments
IPC: B66C1/10
Filed: 1972-02-02
Abstract: 1423513 Lifting attachments LANCER BOSS GROUP Ltd and G N BOWMANSHAW 19 Jan 1973 [2 Feb 1972] 4968/72 Heading B8H An attachment for use in lifting containers comprises a carriage 2 which is vertically movable along the mast E of a lift truck A, and horizontal support means 1 which is integral with or is attached to the carriage 2 projects from the carriage, and flexible links 3 extend downwardly from the support means 1 for attachment to a lifting frame 4 having rotatable load engaging members 5a for engagement in the recesses of a container. The frame 4 may be moved sideways or slewed relative to the carriage 2 by means of a pair of separately operable rams 20a, (22) connected between the frame 4 and horizontal support means 1, Fig. 2 (not shown). The carriage 2 comprises a frame (5) to the top of which the support means 1 is attached, Fig. 3 (not shown), the latter comprising a pair of horizontal arms 14 having projections (15) to which the link 3 are coupled.
Patent GB-836120-A (GB)
Title: Improvements in or relating to dough delivery chutes for bakery dough dividers
Inventor: JONES DENNIS GARNER
IPC: A21C5/00
Filed: 1956-02-17
Abstract: 836,120. Feeding dough. BAKER PERKINS Ltd. May 13, 1957 [Feb. 17,1956], No. 5038/56. Class 87(2). [Also in Group XXX] Dough from shoot 2 passes to hopper 3 of a dough divider through auxiliary chamber 5, the la,tter being fitted with an extension chamber 6 into which dough overflows, the head of dough serving to ensure uniformity in the dough delivered to the dough divider.
Patent GB-588584-A (GB)
Title: Improvements in or relating to revolving cylinder reciprocating pumps
IPC: F04B1/113
Filed: 1945-02-28
Abstract: 588,584. Revolving - cylinder reciprocating pumps. COX, A. F. Feb. 28, 1945, No. 5041. [Class 102 (i)] A revolving radial-cylinder pump comprises a rotor D, bearing against abutments A' in the casing A to separate the suction and delivery connections B, C, having longitudinal slots D' in which slide blade-like pistons E each having a bore D<5> in which fit pins D<6> carried by slippers D' that engage eccentric grooves in the covers of the housing. The inner ends of each pair of opposed cylinders are interconnected by bores. D<4> to prevent hydraulic locking and for the same reason a groove F<1> interconnects the spaces between the slippers. In a modification shown in Fig. 3, the pistons G have extensions G' that engage the slippers that are carried in eccentric grooves in plates H guided in plates H<2> and adjusted by a yoke H<5> to vary the stroke of the pump. The stroke may be varied by a piston exposed to delivery, pressure; in one construction, two pistons are arranged with connections to'the suction and delivery of the pump so that the stroke is suitably adjusted when the pump is driven in either direction. In a further modification the stroke is adjusted by gearing driven by a centrifugally actuated clutch on the pump driving shaft which is arranged to disengage when the pump runs near normal speed. This arrangement is suitable for circulating pumps for reversible internal combustion engines so that after reversal of the engine the stroke of the pump is altered to permit delivery in the same direction.
Patent GB-214778-A (GB)
Title: Improvements in hopper apparatus for distributing sand or the like on tramway rails
IPC: B61C15/10
Filed: 1923-02-21
Abstract: 214,778. Forbes, H. A. Feb. 21, 1923. Sand, distributing on wheel tracks.-This invention is an improvement on the sand-distributing device described in Specification 104,424 and comprises a rotary agitator A in the base C of a sand-hopper operated by a rack H and pinion M mounted in a casing D below the sand hopper. A sand valve C<1> is fixed to the spindle B which opens and closes a sand port L as the spindle B is rotated. A shield D<1> protects the rack and pinion from sand and a prong G in the outlet pipe is connected to the pinion spindle B by a spring F so that it rotates with the spindle and clears the pipe of clogged sand. The rack H, Fig. 3, is controlled by a spring K and is provided with a stop to limit its outward movement; it may be operated electrically or by foot. Rotary means other than a rack and pinion may be employed.
Patent GB-945939-A (GB)
Title: Method of producing acrylonitrile of high purity
Filed: 1960-02-12
Abstract: A method of purifying crude acrylonitrile from an aqueous solution containing 10 to 30 grams of acrylonitrile per litre, methylvinylketone, cyanobutadiene and divinylacetylene in amounts between 15 and 1,000 ppm., and lactonitrile and acetaldehyde in amounts between 0 and 10 g./1., which aqueous solution is obtained by reacting acetylene with hydrocyanic acid and absorbing the gaseous products in water, consists of a continuous azeotropic distillation of said aqueous solution in a column after adding hydrocyanic acid which increases the volatility of the water-acrylonitrile azeotrope in comparison with that of the water-methylvinylketone azeotrope, a vapour which on condensation gives two immiscible layers, the upper of which is mainly purified acrylonitrile, being drawn off from some point acrylonitrile, being drawn off from some point of the column, preferably two-thirds of the way up.  The hydrocyanic acid is preferably present in an amount greater than 0.4 g./1.  The column may be in two sections of different diameters and containing at least two sets of bubble plates of different sizes, the aqueous solution being fed between the two sections and the vapour phase drawn off above this point. Steam may be blown through the column.  The lower of the two immiscible layers may be recycled to the column.  The ratio of the amount of mixture condensed at the column head to the amount drawn off part way up is preferably 1:20.  Reference has been directed by the Comptroller to Specification 818,722.
Patent GB-1008514-A (GB)
Title: Improvements relating to electron multipliers
Inventor: STANLEY VINCENT ARTHUR
IPC: H01J43/20
Filed: 1961-02-11
Abstract: 1,008,514. Electron multipliers. ELECTRIC & MUSICAL INDUSTRIES Ltd. Feb. 12, 1962 [Feb. 11, 1961], No. 5173/61. Heading H1D. A photo-electron multiplier comprises a plurality of dynodes 3 arranged one behind the other and each having a single inclined slat forming one boundary of an opening in the dynode. The arrangement is such that light can pass through the openings in individual dynodes, but there is no direct light path between the cathode and electron collector of the multiplier. The multiplier may comprise ten dynodes each supported by two pins fused into one of two glass side plates, successive dynodes being supported from opposite sides. Each slat 5 may be at an angle of 50 degrees to the dynode plane, and may have a length equal to twice its width, the latter being 20% greater than the dynode spacing. Each dynode opening may be covered by a metal mesh 6.
Patent GB-1278473-A (GB)
Title: Firbrous refractory compositions
Inventor: JAGO EDWARD JOHN
IPC: C04B28/34
Filed: 1969-01-30
Abstract: 1278473 Fibrous refractory composition FOSECO TRADING AG 5 Jan 1970 [30 Jan 1969] 5257/69 Heading C3N [Also in Division D2] A refractory composition particularly for use in hot topping applications comprises at least two fibrous materials selected from calcium silicate fibres, aluminium silicate fibres and asbestos fibres, and either organic fibre or granular refractory filler or both, the maximum proportions of each ingredient in the composition being, by weight Calcium silicate 35% Aluminium silicate 55% Asbestos 35% Organic fibre 40% Granular refractory filler 50% and a binder. The binder may be colloidal silica, alumina or zirconia sols, aluminium phosphate, phosphoric acid, sodium silicate or an alkyl silicate. The particle size of any sol binder employed is preferably less than 100 Á. The binder is preferably present in an amount 5À55 parts by weight dry binder per 100 parts by weight of the other ingredients. The aluminium silicate fibres should preferably have lengths in the range 12-250 mm., whilst the calcium silicate fibre, which may be synthetic pure calcium silicate fibre or slag wool, should preferably have lengths in the range 12-75 mm. The asbestos should preferably be the amosite type, have a water content of 2-3% by weight and having lengths in the range 9-18 mm. The organic fibre may be pulped newsprint, wood pulp, sawdust, cotton scrap, bagasse and synthetic materials such as rayon, nylon and acrylic fibres of which pulped newsprint is preferred. Mixtures of two or more fibres may be used. The granular refractory material may be fine silica, aluminium silicate, diatomite (preferably calcined), furnace aggregate, vermiculite, perlite, grog, chamotte, alumina, magnesia, silica, coke, olivine or chromite. The composition may be formed into sheets or slabs by conventional vacuum dewatering techniques and the finished article may be damp and flexible so that it conforms to the desired shape in situ in an ingot mould, head box or riser, or a hard dry rigid product.
Patent GB-470917-A (GB)
Title: Improvements in or relating to the reinforcing of sheet material such as leather
IPC: A43D43/06
Filed: 1936-02-24
Abstract: 470,917. Binding and strengthening edges of sheet material. BRITISH UNITED SHOE MACHINERY CO., Ltd. (United Shoe Machinery Corporation) Feb. 24, 1936, No. 5431. [Class 42 (i)] The turned-over edge of sheet material, e.g. leather, is strengthened by an inserted cord or tape 200 which is fed to an edgefinishing machine by means additional to the means for feeding the work through such machine. As shown, these additional means comprise grooved and knurled rollers 79, 81 driven through a ratchet clutch, rod 31, and lever 29 from a shaft 61 operating the feed mechanism of the edge-finishing machine C. The tape 200 is drawn from a reel 37 through a tank 39 containing an aqueous suspension of rubber, excess of the adhesive being removed by side and edge scrapers 111, 129. The tape &c. passes through a fixed guide ring 27, over a roller 25, through an eye at the end of the creaser or presser 21, and under a smaller roller 23 on the presser. The lower edge of the presser is grooved for the tape &c, Specification 208,217, [Class 42 (i)], is referred to.
Patent GB-466732-A (GB)
Title: Improvements in electric starting apparatus for engines
IPC: F02N11/08
Filed: 1936-02-24
Abstract: 466,732. Turning-gear. WEST, H. E. W. Feb. 24, 1936, Nos. 5459 and 10370. [Class 7 (v)] In an electric starter in which a starter pinion F is'urged out of engagement with an engine member R by a spring K and moved into engagement by a solenoid B, the solenoid has three coils S<1>, S<2>, S<3> so connected that the pinion is moved into engagement while being turned slowly, the starting motor is supplied with full current when the pinion is in full engagement, and the coil S<2> is cut out to allow the disengagement of the pinion when the engine starts and the motor current consequently falls off. The pinion F is connected by splines G to the hollow armature shaft H of the motor and carries a light rod I, the spring K being placed between a head I<1> on the rod I and a shoulder J in the hollow shaft H. The core N of the solenoid B acts on the rod I through a rod L abutting against the head I<1> and normally held in the position shown by a spring M. On closing a starter switch A, current fiows through the solenoid winding S<1> to earth, and also through the winding S<2> in series with the field and armature windings of the motor, which is thus turned slowly while the pinion is moved into engagement by means of the solenoid windings S<1>, S<2>. When this is effected, a circuit closed by contacts O, O<1> on the solenoid core cuts out the winding S<2> and connects a low-resistance winding S<3> in series with the motor, which now rotates rapidly to effect starting. When the motor current falls off in consequence of starting, the coils S<1>, S<2> are unable to overcome the tension of the spring M, which returns the rod L and consequently opens the contacts O, O<1> and cuts off current from the motor. In a modification, the contacts O, O<1> close a relay circuit for switching in the coil S<3>. This circuit is arranged to be breakable by the hand switch A if the solenoid core N sticks after starting has been effected.
Patent GB-576788-A (GB)
Title: Improvements in the method of production of the legs of weighing scales and associated parts
IPC: G01G23/00
Filed: 1944-03-24
Abstract: 576,788. Weighing-apparatus. BRECKNELL, Ltd., C. W., and BRECKNELL, T. A. March 24, 1944, No. 5463. [Class 143] [Also in Group XXII] A leg, produced from sheet metal stampings, for a counter-scale consists of a central stem formed of two rigidly connected strips c, c<1>, the strip c<1> being shorter than the strip c and having an undercut edge to locate a slotted bearing plate b which receives one end of the usual stay. The upper ends of the strips are reduced to form shoulders, the ends being inserted and extended into a hole in the crosspiece a which carries the scale pan. The strips may be formed with integral lateral extensions c<4> formng stops to limit the movement of the leg. According to the Provisional Specification, a plug is used to expand the strips into the cross-piece.
Patent GB-899053-A (GB)
Title: Method and composition for coating tablets
IPC: A61K9/28
Filed: 1960-02-16
Abstract: A coated solid medicament has the coating material in the form of a film of a physiologically acceptable composition consisting essentially of the water permeable combination of a water-soluble or water-dispersible wax (A) and a cellulose ester of a 2 to 4 carbon aliphatic monocarboxylic acid (B).  Typical cellulose esters are cellulose acetate, cellulose propionate and cellulose butyrate.  The waxes are polyethylene glycols of melting point of at least 50 DEG C., glyceryl monostearate and diglycol stearate. Optional ingredients are (a) dyes, lakes and pigments, (b) water-insoluble glossing and polishing agents such as beeswax, lanolin, stearic acid, cocoa butter and cetyl alcohol (C), (c) plasticizers such as castor oil, mineral oil, corn oil, sesame oil and propylene glycol, alone or in admixture with a drying oil such as soybeam oil (D), (d) surface-active agents such as polyoxyethylene sorbitan derivatives and sulphated fatty alcohols.  The compositions contain 14 to 20 grms. of (A), 2 to 10 grms. of (B), not more than 1 grm. of (C), and not more than 2 grms. of (D) per 100 ml. of the fluid composition, which is prepared by dissolving the components in a non-aqueous solvent such as acetone, ethanol, a mixture thereof, or methyl ethyl ketone.  The finished coat comprises 60 to 91% of (A) and 9 to 40% of (B) with the rest not exceeding 5%.  Specification 764,342 is referred to.