baber/WOPTO huggingface dataset:
Patent GB-324138-A (GB)
Title: Improvements in or relating to means for screening electrical apparatus
IPC: H04B15/02
Filed: 1928-10-26
Abstract: 324,138. Crook, L. H. Oct. 26, 1928. Induction, prreventing. - Electrical apparatus comprising a source of energy 15, Fig. 1, supplying a receiving instrument 19 through a lead 13 is prevented from influencing neighbouring apparatus by metallic or metal-lined screens 10, 11, 12 which enclose the apparatus completely and constitute the return lead of the circuit.
Patent GB-451274-A (GB)
Title: Improvements in or relating to cinematograph cameras
IPC: G03B33/00
Filed: 1934-10-31
Abstract: 451,274. Colour kinematography. BELLINGHAM, L., and STANLEY, F., 71, Hornsey Rise, Upper Holloway, London. Oct. 31, 1934, No. 31173. [Class 97 (i)] The gate of a camera for three-colour or four-colow kinematography com prises exposure aperture! each of a height equal tc half the length of film feed and of a width half the picture width of the film, two of them, a, b, being spaced apart in the longitudinal direction of the film so that the length d of the intervening space equals the film feed, and the third aperture c being located between them but displaced laterally so as to be clear of the space between them ; the fourth aperture, when provided, is below the aperture c and spaced so that the length of the space between it and the aperture c equals the film feed. The arrangement permits the use of larger lenses than would be possible if the apertures where juxtaposed, and the aperture c may be midway between the apertures a, b so that the lens diameters may be a maximum. According to the Provisional Specification, the third and fourth apertures may be omitted.
Patent GB-1504467-A (GB)
Title: Process for the purification of acetic acid
IPC: C07C51/00
Filed: 1976-07-27
Abstract: 1504467 Acetic acid purification MONSANTO CO 27 July 1976 [28 July 1975] 31210/76 Heading C2C Acetic acid containing trace iodine values, is purified by introducing the acid to an intermediate section of a fractionation column (C<SP>1</SP>); withdrawing high-boiling impurities from the bottom; withdrawing and condensing overhead vapours from the column; withdrawing a minor proportion of the condensate (15A) and returning the remainder as liquid reflux (14A); and withdrawing as a liquid side-draw purified acetic acid (16A), from the upper one-fourth of the column. The crude may be that obtained by reaction of alcohol, ester, ether or halide derivatives with carbon monoxide using rhodium or iridium catalyst components with iodide.
Patent GB-514075-A (GB)
Title: Improvements relating to corrugated sheets of paper or the like
IPC: B31F1/28
Filed: 1938-10-28
Abstract: 514,075. Ornamenting corrugated paper or like sheet material. SAVILLE, J. E., and SAVILLE & CO., Ltd., W. J. Oct. 28, 1938, No. 31234. [Class 93] [Also in Group VIII] Paper or like corrugated sheet material is ornamented by applying a glitter preparation to the tops of all or a number of the corrugations, the remaining area being free from the preparation. The corrugations may be straight or sinuous, and the glitter preparation may be powdered glass or plain or silvered powdered metals. A corrugated sheet 5 is passed over a roller 1 rotating in adhesive 2 whereby adhesive is applied to the tops only of the corrugations, a glitter powder is spread across the sheet near one end while the sheet is horizontal, and that end is raised so that the powder can be cascaded down the length of the sheet by tapping underneath from corrugation to corrugation.
Patent GB-262802-A (GB)
Title: Improvements in and relating to the manufacture of cyanides
IPC: C01C3/00
Filed: 1926-12-09
Abstract: 262,802. Naamlooze Vennootschap Nederlandsche Mijnbouw en Handelmaatschappij. Dec. 10, 1925, [Conzention date]. Humic acid; humates.-Humic acid may be derived from brown coal humus known as brown of Cassel by treatment with alkali carbonate solution, the extract being separated from the insoluble, matter and evaporated: or peat or brown coal may be treated with alkali compounds to obtain alkali humates. The Specification as open to inspection under Sect. 91 (3) (a) states that alkaline earth compounds such as barium compounds may replace the alkali compounds and that peat or brown coal may be treated with steam under pressure to obtain humic acid. The alkali compounds employed may be in the form of waste lyes. This subject-matter does not appear in the Specification as accepted.
Patent GB-732845-A (GB)
Title: Improvements in or relating to an electrical pulse generating apparatus
IPC: H03K5/1532
Filed: 1952-12-10
Abstract: 732,845. Statistical apparatus. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 10, 1952 [Dec. 21, 1951], No. 31275/52. Class 106 (1). [Also in Group XL (c)] In an electronic computer data is recorded on a paramagnetic tape in the form of combinations of discrete spots, each group of spots representing, for example, a digit. Fig. 3a shows a portion of such a magnetic tape in which each vertical column of dots represents a coded unit of information and on which the information is recorded at a low density. When the information is recorded at a high density, Fig. 3b, " fringe area effects " are eliminated by the' use of pulse shaping circuits (see Group XL (c)).
Patent GB-738627-A (GB)
Title: Improvements relating to vehicle axle suspensions
IPC: B60G11/52
Filed: 1953-11-11
Abstract: 738,627. Motor vehicles. DAIMLERBENZ AKT.-GES. Nov. 11, 1953 [Nov. 11, 1952], No. 31282/53. Classes 79(3) and 79(5). [Also in Group XXXII] A vehicle axle suspension comprises wheel carriers connected to longitudinally extending thrust links and supported, with resilience on the rotational direction, by an axle, wherein resilience about a vertical axis is provided between the axle and the thrust links which are resiliently and pivotally connected to the vehicle superstructure rearwardly of the axle, preferably by means of rubber rings with a vertical axis, in such manner that the wheel on the side towards which a transverse force acts upon the superstructure, i.e. on the outside of a bend in the road, has its leading portion displaced inwardly under the action of the force. As shown, rear wheels 14 are driven through half axles 15 from gearing 16 resiliently mounted on a fork shaped frame member 10, 11 and each wheel is mounted on a carrier 22 rigidly fixed to a sleeve 23<SP>1</SP> at one end of a thrust link 23, which is pivoted about a point 24 on the frame member with the interposition of a vertically arranged rubber ring. The links are sprung by coil springs 28. A through axle 29 is supported at each end within the sleeves 23<SP>1</SP> by rubber cushions 30, 31 and is provided with lever arms 32 each of which abuts against a respective link 23 through a rubber cushion 33. The axle is also provided with rubber buffers 34 which after certain upward movement of the axle, abut the frame members 11. A torsion rod stabilizer 35 is connected between the links 35 and is provided with a lever arm 37 by which the torsion rod may be adjusted by means of a piston rod stop 40 controlled for example, hydraulically from the driver's seat. The stop 40 may be so adjusted as to bring the stabilizer into operation as an auxiliary spring over the whole range of spring movement. In modifications, Figs. 5 and 6 (not shown), the axle 29, in the region of the links, has respectively a hexagonal or oval cross section, the interposed rubber cushions and thrust links having similar cross-sections.
Patent GB-672688-A (GB)
Title: Improvements relating to the manufacture of confectionery
IPC: A23G7/00
Filed: 1948-12-02
Abstract: 672,688. Conveyers. SCOTT, A. T., and MARS, Ltd. Dec. 1, 1949. [Dec. 2, 1948] No. 31284/48. Addition to 646,503. Class 78 (i). [Also in Group V] A band conveyer 20 delivers a slab of confectionery on to a series of driven rollers 23 which feed the slab on to a series of twelve endless V-belts 24A, 24B which run around grooved drums 25, 31. Whilst the slab is carried by the twelve belts, rotary knives 27, co-operating with a grooved roller 26, cut the slabs into twelve strips, six of which are then taken upwardly by six (alternate) belts 24A over a guide roller 29 (one belt for each strip) and the other six of which are taken by belts 24B over guide roller 30. From the rollers 29, 30 the belts 24A, 24B fan out as shown in Fig. 2A (plan view). At the terminal drum 31 (at which the belts, although fanned out, come to a common level) the belts transfer their strips to a second conveyer system comprising twelve pairs of endless V-belts 32A, 32B which run around the drum 31 and a cluster of grooved co-axial pulleys 34. This second conveyer system carries the strips through a cutting station at which a vertically-reciprocating knife cuts the strips into bars (see Group V). The bars are then transferred to a third conveyer system comprising twelve endless V-belts 33 which run around the pulley cluster 34 and a grooved drum 65. The belts 33 run faster than the belts 24A, 24B, 32A, 32B, and thereby space out the cut bars longitudinally. The belts 24A, 24B are provided with intermediate support rollers 74 carried by brackets on frame bars 75. Driving arrangements : A shaft 49, which is connected to the drive for the band conveyer 20, drives drums 25, 31 by bevel gearing and chain-andsprocket drives 54, 59, 80. The shaft 41 of the drum 25 drives the rollers 23 through gear boxes 62, 63. Shaft 49 drives also drum 65 by sprocket 81, 82, chain 83, change-speed gear 84, bevel gearing 85, 86 and chain drives 91, 94. In a modification (not illustrated) the belts 32A, 32B and 33 may be replaced by band conveyers.
Patent GB-1189398-A (GB)
Title: A Process for the Preparation of Fertilizers
IPC: C05C9/00
Filed: 1968-07-01
Abstract: 1,189,398. Fertilizers. SUMITOMO CHEMICAL CO. Ltd. 1 July, 1968 [1 July, 1967], No. 31336/68. Heading C1B. An NK fertilizer containing 20-90% of urea, 2-50% of potassium chloride and 5-40% of calcium sulphate is produced by spraying a molten mixture having the same composition as the desired product, except that it contains 0-40% of calcium sulphate and 1-10% of water, on to recycle material, optionally together with one or more of urea, potassium chloride and calcium sulphate, in a rotary granulating drum. The water may be supplied separately, in admixture, or as water of crystallization. The mole ratio of urea to gypsum in the product may be 4-7 : 1. The molten mixture may have a temperature of 90-130‹ C. and may be sprayed at a pressure of 0À1-5À0 kg/cm.<SP>2</SP> gauge. Granulation may be effected at a temperature of 50-100‹ C. for a period of 3-20 minutes. The water content of the material being granulated is preferably 1-2%. The hot granulated product may be mixed with further recycle material and cooled in a current of cold air in a further rotary drum. A total of 50-90% of recycled material (based on the total product) may be employed. Of this amount, 10-40% may be employed in the cooling step. The desired product may have a particle size of 6-12 mesh.
Patent GB-1272020-A (GB)
Title: Improvements in or relating to hydraulic eddy brakes
IPC: F16D57/04
Filed: 1969-06-20
Abstract: 1,272,020. Brakes. ZAHNRADFABRIK FRIEDRICHSHAFEN A.G. 20 June, 1969 [27 June, 1968], No. 31339/69. Heading F2E. The stationary element 2 of an hydraulic brake is mounted on bearings for rotation but, in use, is held by a friction clutch 12 under the influence of hydraulic pressure. The clutch 11 is operated by a piston 17 acting through pins 18 on a thrust-ring 14 which presses the clutch ring 12 against fixed wall 13. Pressure fed to region 16 behind the piston is fed from source 31 and control 32 which also fills the brake casing through channels 33, 36.
Patent GB-1431452-A (GB)
Title: Socket edge connector
IPC: H01R12/72
Filed: 1973-07-02
Abstract: 1431452 Edge connectors PYE Ltd 2 July 1973 31386/73 Heading H2E A socket edge-connector comprises a body 25 with one or more cavities 28 each holding a respective strip metal spring contact 1, the contact having a first portion engageable by the edge of a circuit board upon insertion and a second portion which extends between two points which bear against the wall of the cavity, the second portion being spaced from the wall so as to be free to flex resiliently and joined to the first portion by a third portion which is stiffer than the second portion. The contacts, of gold plated phosphor bronze, are folded to form a post 2 around which a wire may be wrapped, curved strip first portions 6, 8 and 7, 9 adjacent each end 4, 5, oppositely bowed second portions 12, 13 and third portions formed as bends 10, 11, which with bends 14, 15 define the said points which bear against the walls 36 and the said resilient second portions 12, 13 which are bowed away from the walls 36. The moulded body 25 has mounting flanges (27) and shoulders 34 and walls 35 which coact with a protrusion 18 and finger 19 to locate the contacts. The third portions are stiffer as a result of work-hardening which occurs during their bending.
Patent GB-780270-A (GB)
Title: Improvements in or relating to change speed gearing
IPC: F16H27/04
Filed: 1954-10-30
Abstract: 780,270. Change-speed gear. COLE, Ltd., E. K., and REEVES, R. J. D. Jan. 27, 1956 [Oct. 30, 1954], No. 31412/54. Class 80 (2). An input shaft 5, carrying fast wheels 3, 6 drives a radio-tune wheel 9 at reduced speed through wheel pairs 6, 7 ; 8, 9, until multi-revolution lost-motion is taken up between the fast wheel 3 and -a loose disc 4, by interposed loose discs having overlapping lugs 2 which come into contact successively to couple the wheels 3, 4, whereupon the latter, 4, forces the output wheel 9 axially out of mesh with the wheel 8 by balls 10 which ride up cam inclines in the faces of the wheels 4, 9 and finally couple the said wheels for direct drive. On reversal of drive, a blade or helical spring 11 returns the wheel 9 axially into mesh for reduced drive until the lostmotion is again absorbed.
Patent GB-710262-A (GB)
Title: Improvements in or relating to the cement attachment of soles to shoes
IPC: A43D25/07
Filed: 1950-12-29
Abstract: 710,262. Attaching shoe soles by cement. BRITISH UNITED SHOE MACHINERY CO., Ltd. (United Shoe Machinery. Corporation). Dec. 28, 1951 [Dec. 29, 1950], No. 31537/50. Classes 17(1) and 17(2) Relates to methods of and apparatus for subjecting a sole O to a warm moist atmosphere and simultaneously activating cement on the sole' and on the bottom of a shoes prepartory to the cement attachment of the sole, by dry heat above the temperature of boiling water wherein a cementcoated sole is placed on a support having the contour of the shoe bottom and a shoe bottom is placed on or near a heater. The heating unit, which is suported on a frame 10, may be a hollow member 20 with perforations in its opposite faces 22, 24, which face the sole and the shoe bottom, and hot air is supplied to the interior of the heating unit, and thus to the cement-coated margins of the shoe upper and sole, by a blower 30 (not shown) and an electric motor which forces air over an electric heater element. Alternatively, the heater element may comprise a receptacle containing heated oil. The sole support 42 comprises a perforated sheet metal screen 52 parallel to the faces 22, 24 over which is laid a foraminous material such as the felt pad 54 and the support 42 is telescopically supported in the upper end of a moisture-generating tank 48 under control of a toggle operated by a foot pedal by which the sole support 42 may be raised and lowered. A thermostatically-controlled heating unit 80 heats the water in the tank 48 and warm moist air is supplied to the sole O by forcing air through a perforated pipe 90 by a compressor 92 (not shown) driven by a motor.
Patent GB-959663-A (GB)
Title: Improvements in electrical switches
Inventor: EDMONDS DE LARUE EVERARD
IPC: H01H29/20
Filed: 1959-09-16
Abstract: 959,663. Gravity switches; mercury switch contacts. COAL INDUSTRY (PATENTS) Ltd. Sept. 14, 1960 [Sept. 16, 1959; Dec. 16, 1959], Nos. 31572/59 and 42777/59. Heading H2B. A switch for operation by the rocking of a shaft (not shown) comprises a hollow spindle 10 to be screwed into the rocking shaft in place of a grease nipple and having a grease nipple 17 thereon so that the switch does not interfere with lubrication of the shaft. A clamping plate 11, which is radially split (Fig. 4, not shown), and provided with a grub screw 12 so that it may be adjusted and then clamped on spindle 10, carries a back plate 13 on which is mounted a mercury switch 29. A cylindrical casing 15 and front cover-plate 16 are held in place by the nipple 17. In a modification the mercury switch comprises an annular chamber with a plurality of electrodes therein which are energized progressively as the degree of rotation of the shaft increases.
Patent GB-606696-A (GB)
Title: Improvements in or relating to flow regulating valves
IPC: G05D7/01
Filed: 1945-11-23
Abstract: 606,696. Fluid-actuated valves. BENDIX AVIATION CORPORATION. Nov. 23, 1945, No. 31648. Convention date, Feb. 16. [Class 135] In a flow-regulating valve, liquid in the supply passage 13 passes either to the exhaust passage 15 past the piston valve 19 or past the piston valve 20 and venturi passage 17 to a delivery line 18 in which a constant flow is to be maintained, the valves being interconnected by the spindle 21 and actuated by the piston 25, responsive, via the passages 30, 32, to the pressure difference across the venturi passage. Thus, increased flow through the venturi passage moves the piston in a direction to throttle the flow to the delivery line, and vice versa. The piston is lightly loaded by the spring 39 in a direction to close the valve 20 and the magnitude of the flow in the line 18 is set by the threaded tapered plug 34 which adjusts the flow through the venturi passage.
Patent GB-632109-A (GB)
Title: Improvements in and relating to the bonding of textile yarns to rubber
IPC: C08J5/06
Filed: 1947-12-01
Abstract: Composite articles are formed by vulcanizing rubber in contact with yarns which have been impregnated with a compound of a metal the sulphide of which is insoluble in water.  The yarns may be cotton, viscose or cellulose acetate, and the metals zinc, cadmium, mercury, copper, nickel and iron.  The metal may be applied to the yarn in the form of the hydroxide, carbonate or acetate, either in a one-stage process or by treating the yarn in a bath of the metal sulphate, nitrate or chloride and then precipitating the desired metallic compound by passing through a sodium carbonate bath.  From 0.1 to 5.0 per cent and preferably 0.5 to 1.0 per cent of the metal compound may be used.  In examples viscose rayon yarn was passed through either a solution of zinc sulphate, nickel sulphate or mercuric sulphate and then through a bath of sodium carbonate; or the yarn was passed only through a cadmium acetate bath, and then vulcanized to the rubber. Specification 577,291, [Group V], is referred to.ALSO:Composite articles are obtained by vulcanizing rubber in contact with yarns which have been impregnated with a compound of a metal the sulphide of which is insoluble in water.  The term rubber includes natural rubber and synthetic rubber such as copolymers of butadiene with styrene or acrylonitrile.  The textiles may be cotton, viscose or cellulose acetate; and the metals zinc, cadmium, mercury, copper, nickel, and iron.  The metal may be applied to the yarn in the form of the hydroxide, carbonate or acetate, either in a one stage process or by treating the yarn in a bath of the sulphate, nitrate or chloride and then precipating the desired metallic compound by passing through a sodium carbonate bath.  From 0.1 to 5.0 per cent and preferably 0.5 - 1.0 per cent of the metal compound may be used. In examples viscose rayon type yarn was passed through either a solution of zinc sulphate, nickel sulphate or mercuric sulphate and then through a bath of sodium carbonate; or the yarn was passed only through a cadmium acetate bath.  The treated yarns were then vulcanised to a mix consisting of smoked sheets, zinc oxide, sulphur, pine tar, stearic acid, phenyl b -naphthylamine and mercaptobenzthiazole.  Specification 577,291 is referred to.
Patent GB-709897-A (GB)
Title: A device for coalescing and filtering liquids
Inventor: ROBINSON JOHN WARREN
IPC: B01D29/00
Filed: 1952-12-15
Abstract: 709,897. Filters. FRAM CORPORATION. Dec. 15, 1952, No. 31733/52. Class 46 Liquid to be filtered, such as oil contaminated with water and solids passes through openings 20 in an outer casing 19, through a layer 17 preferably of fibre glass having a fibre diameter of three microns and necessarily having slits such as 18 through it, through a layer 15 preferably of fibre glass having a fibre diameter of one micron, and through resin-impregnated paper 14 to a perforated outlet tube 10. The layer 17 collects contaminant until it becomes clogged, after which the liquid passes through the slits 18 to the inner layer 15 direct. The layers 15 and 17 exert a coalescing action on dispersed particles of water carried by the liquid.
Patent GB-189989-A (GB)
Title: Improvements in iron-clad electric switches
IPC: H02B1/00
Filed: 1921-11-28
Abstract: 189,989. Hope, V. Nov. 28, 1921. Switches, quick-break.-In iron-clad switches, the switch blades are mounted on a U-shaped bar pivoted at its sides to the enclosing case and operated by a pin-and-slot connection with an external handle, the pin for the connection moving in a slot in the casing. The switch-bar B and handle D are pivoted on the same pin C, and a tongue piece bent out from the handle D constitutes the pin d<1> which works in a slot b<2> in the bar B. The top of the handle D is twisted so as to lock the cover when the switch is closed. The V-shaped switch blades E are secured to the bar B by an L-shaped anchor piece F and a bolt G which passes into the anchor piece through the apex of the V. A quick break is effected by a spring wound round the screw C' and bearing against the bar B.
Patent GB-953758-A (GB)
Title: Process for the production of bead polymers and co-polymers of acrolein
IPC: C08G2/00
Filed: 1961-09-04
Abstract: Bead polymers are produced from acrolein or a -substituted acrolein, optionally in admixture with other vinyl or vinylidene monomers using (a) a compound imparting an alkali reaction to its solutions or suspensions in water as catalyst, (b) suspending agents (c) polymerization in the presence of, e.g. 30-70%, H2O and (d) complete mixing of the polymer mixture.  The vinyl or vinylidene monomers may be methyl methacrylate, styrene, acrylonitrile, vinyl acetate and acrylic acid esters and a catalyst for the monomers may be used, e.g. organic or inorganic peroxide or persulphate, H2O2 or azodiisobutyric acid nitrile. The catalyst, may be organic or inorganic, e.g. 0.001-5% piperidine, or aliphatic amines such as tri- or diethylamine triethyldiamine, ethylene diamine, hexamethylene diamine, e.g. NaOH solution, Na2CO3, NH3, N2H4. 0.01-10% of suspending agent may be used, e.g. an organic water-soluble polymer e.g. polyvinyl alcohol, salts of polyacriylic and polymethacrylic acids, cellulose ethers, methyl cellulose; and/or inorganic, e.g. BaSO4, talc, dispersed SiO2, CaCO3, in finely divided form.  The bead size may be below 1m -above 1 mm.  In an example e.g. methyl cellulose and piperidine are added to aq. acrolein with stirring at 20 DEG C., the mixture is stirred for 1/4 hour, diluted with water and decanted. The beads are filtered, washed with H2O and acetone and air dried on clay.