baber/WOPTO huggingface dataset:
Patent GB-253574-A (GB)
Title: Improvements in automatic or semi-automatic telephone systems
IPC: H04M1/272
Filed: 1925-03-12
Abstract: 253,574. Standard Telephones & Cables, Ltd., (formerly Western Electric Co., Ltd.), and Lowry, L. P. March 12, 1925. Drawings to Specification. Semi-automatic exchange systems.-An operator's position is provided with duplicate sets of apparatus, the change-over from one set to the other being effected either manually by the operation of a key or automatically on the development of a fault in the set in use. If desired, more than two sets may be provided. The invention is described with reference to a keyboard equipment which forms part of the complete system described in Specification 254,183. Specifications 253,575 and 255,130 also are referred to.
Patent GB-870070-A (GB)
Title: Improvements relating to ratchet type selector switches
Inventor: WARMAN BLOOMFIELD JAMES
IPC: H01H67/12
Filed: 1959-02-26
Abstract: 870,070. Automatic exchange switches. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Feb. 9, 1960 [Feb. 26, 1959], No. 6751/59. Class 40 (4). In a stepping circuit for a ratchet-operated selector switch, the energizing coil of the electromagnet of the switch is connected in the collector-emitter circuit of a transistor which is connected as a blocking oscillator by virtue of a regenerative feedback coupling, in the form of a feedback coil magnetically coupled to the energizing coil, provided between the collectoremitter circuit and the base circuit of the transistor. An electromagnet DM operates the ratchet mechanism of the reverse drive step-bystep switch RS, DM having an energizing coil C1 in the collector-emitter circuit of transistor T. A feedback winding C2 is connected to the base of the transistor from a positive potential large enough to keep the transistor " cut off " under normal conditions. If a negative pulse e.g. from an electronic or ferrite core gate circuit, is fed via network C, R to the transistor, the base potential falls and the transistor begins to conduct. The current through energizing coil C1 rapidly increases due to the regenerative action through the feedback coil C2 until magnetic saturation of the coils is reached, when current in C1 ceases until the flux linking C2 dies away. RS is switched one step and, if only one pulse is transmitted, will go no further. Alternatively, the switch may be self-stepped to a marked contact. On closure of start contact st negative potential is extended over normally closed contact sh to the base, thus stepping the switch, which continues stepping until the marked contact, which is grounded, is reached. The switch may be homed by reconnecting negative potential to the previously marked contact and opening sh. Since the operating signal does not pass through either of coils C1, C2 the signal path may be made non- inductive and hence could be of considerable length, and also wiper W2 may be of the non- bridging kind.
Patent GB-1480127-A (GB)
Title: Phosphonate mixtures useful as flameproofing agents for polyurethane foam plastics
IPC: C07F9/40
Filed: 1975-02-18
Abstract: 1480127 Mixed phosphonate reaction products CIBA-GEIGY AG 18 Feb 1975 [20 Feb 1974] 6753/75 Heading C2P [Also in Division C3] The invention comprises a phosphonate mixture obtained by reacting 1 mol of pentaerythritol with 2 to 4 mols of dimethyl methanephosphonate at 50 to 200 C., and optionally subjecting the product to an aftertreatment with an alkylene oxide, (e.g. ethylene oxide or propylene oxide). The reaction can be carried out in the presence of a conventional transesterification catalyst and the methanol split off in the reaction is preferably continuously distilled off. When the molar ratio of pentaerythritol to phosphonate is 1 : 2 the product comprises a non-cyclic diphosphonate of the formula and cyclic diphosphonates, e.g. the compound: The reaction mixture also contains other phosphonates, e.g. those of the formula wherein n is an integer, e.g. 1 to 5, and especially 1 or 2. Compounds containing free phosphonic acid groups may also be present especially when the reaction is effected at above 150 C. The products are useful as reactive flameretardants in the production of polyurethane foams.
Patent GB-746834-A (GB)
Title: Testing for a specific lactobacillus bifidus growth-promoting substance
IPC: C12N1/38
Filed: 1953-03-12
Abstract: A method of determining whether a substance contains a specific growth-promoting factor for those strains of the micro-organism Lactobacillus bifidus which require said specific growth-promoting factor in order that they may grow, comprises adding a small amount of the substance to be tested to a medium for Lactobacillus bifidus growth which contains carbohydrate especially sugars, amino acid, protein, hydrolysed protein, mineral salt, vitamin, and vitamin precursor, and which is therefore sufficient in all nutrients needed in order that said micro-organism may grow thereon except said growth-promoting factor, inoculating said medium containing said added substance with a strain of said micro-organism requiring said growth-promoting factor in order that it may grow thereon and incubating said inoculated medium under aerobic or micro-aerophilic conditions.  The medium of the example consists of potassium acid phosphate, lactose, sodium acetate, enzyme hydrolysed casein, adenine, quanine, uracil, xanthine, alanine, ciptine, tryptophase, asparagine, pancreatin, thiamine, riboflavin, calcium pantothenate, pyridoxine, nicotinic acid, p-aminobenzoic acid, folic acid, vitamin B12, biotin, polyoxyethylene sorbitan mono oleate and mineral salts (magnesium sulphate, ferrous sulphate, sodium chloride and manganese sulphate).  The test micro-organism Lactobacillus bifidus is separated from the faeces of breast-fed infants.
Patent GB-512448-A (GB)
Title: Improvements in and relating to wheels composed of pressed sheet metal parts for land vehicles and aircraft
IPC: B60B3/08
Filed: 1938-03-04
Abstract: 512,448. Vehicle wheels. KRONPRINZ AKT.-GES. FUR METALL-INDUSTRIE, and LUDWIG, W. March 4, 1938, No. 6883. [Class 144 (i)] Relates to wheels comprising discs welded to an axle-tube constituting a hub-barrel. In the form shown in Fig. 1, pairs of corrugated discs 4, 5 and 6, 7 welded to the axle-tube 1 are seamed and/or welded together at 6a, 7a, the inner pair of discs being profiled to form a deep well-base to the rim. In a modification the side discs are of coned form, the inner one having a cylindrical portion to which a brakedrum is welded. Fig. 5 shows a modification comprising main discs 17, 20 and an outer supporting-disc 11, the main discs diverging from the rim-base to the axle-tube. Fig 6 shows a further modification in which the discs 23, 24 welded to the axle tube 1 are flanged over at 23b, 24b and welded to brake-drums 27, the well-base of the rim being formed by a pair of rings 28, 29 welded together, and to the discs.
Patent GB-213098-A (GB)
Title: Improvements in and relating to electrical measuring instruments
IPC: G01R25/00
Filed: 1923-03-09
Abstract: 213,098. Edgcumbe, K., Everett, E. I., and Ockenden, F. E. J. March 9, 1923. Addition to 204,798. Phase differences and power-factors, measuring. -The instrument described in the parent Specification for a threephase system, in which the rotor is provided with three magnetic members arranged at 120‹ apart, is adapted for a singlephase or two-phase system by deriving currents therefrom differing in phase by 120‹ for magnetizing the magnetic members. In the case of a two-phase system, this may be effected by connecting non-inductive resistances ac, cb across the two phases of the supply, one pair of magnetizing-coils W<1> being connected across the resistance cb, another pair W<2> across the resistance cb and a portion cy of the resistance ac, and the pair W<3> across the resistance ac and a portion cx of the resistance cb. Non-inductive resistances R', R<2>, R<3>, of such values that the currents in all the coils are of equal magnitude, are connected in series with the coils W<1>, W<2>, W<3>. The resistances ac, cb may be replaced by tapped transformers or reactances. In a single-phase circuit, one winding W<1> is connected across the mains, the windings W<2>, W<3> being connected in series with a condenser and a choking-coil respectively. The invention is applicable to phase relays, synchronism indicators, synchronizing relays, &c.
Patent GB-860137-A (GB)
Title: Two-dimensional interpolators
Inventor: TOOTILL GEOFFREY COLIN
IPC: G06G7/30
Filed: 1958-03-04
Abstract: 860,137. Electric analogue calculating systems. NATIONAL RESEARCH DEVELOPMENT CORPORATION. April 28, 1959 [March 4, 1958; Sept. 1, 1958], Nos. 6888/58 and 27974/58. Class 37. In an electrical two-dimensional interpolator including a uniformly resistive sheet and means for applying voltages to lattice points, additional conductive paths making electrical connection with the resistive sheet throughout their length are provided between the lattice points along the lattice line. The lattice may be square, rectangular, hexagonal or triangular and the additional conductors are said to overcome the tendency of points on the resistive sheet to revert to the average value of the voltages on all the studs. The resistive sheet comprises a finely divided carbon in an insulating bidder applied as an airborne spray to form a uniformly thin layer on an insulating board having metal studs ground flush with its surface at the lattice points, and the additional conductor may comprise further lines of divided carbon applied through a mask, or wire conductors embedded in grooves in the board prior to spraying. The resistive sheet and additional conductor may alternately be applied by vacuum evaporation of gold. A resistance between two adjacent studs equal to the resistance between two conductors along opposite sides of a square is associated. In an arrangement using a fivepoint probe described with reference to the Figure accompanying the second Provisional Specification, voltages KF (X, Y) are impressed upon the studs and the required interpolation KF 1  (X, Y) is determined by the probe. Voltages # 1,0,  # 0 , 0 , # 1'0'  # 01 , and # 0-1  are applied to summing amplifiers A1, A2, as shown, and the outputs -A and -B proportional to the second differences are each applied to a square low-shaped cylindrical card potentiometer P1, P2, the contacts of which are driven by a shaft ganged to the probe, and to a further summing amplifier A3, A4. The outputs A(x<SP>2</SP>+l), B (x<SP>2</SP>=+m), where l and m are constants for the board are applied with # 00;  -A and -B to a final summing amplifier A5, and to two further potentiometers P3, P4, the contacts of which are similarly ganged. to the probes which provide the functions A (X<SP>2</SP>+l)y<SP>2</SP> and B (X<SP>2</SP>+m)y<SP>2</SP>, also for " injection into the final summing amplifier. A voltage proportional to # 00  (xy) + 2A[(X<SP>2</SP>+l)(y<SP>2</SP>+m) - n] + - - xB[(x<SP>2</SP>+ m)(y<SP>2</SP>+l) - n] which equals - KF 1  (X, Y) is thus produced.
Patent GB-394083-A (GB)
Title: Improvements in holders for holding hollow cones or other hollow or tubular bodies holding yarn or thread in creels or other supports for yarn or thread to be unwound therefrom
IPC: B65H49/06
Filed: 1932-03-10
Abstract: 394,083. Creel arrangements. HOLT, H., Atlas Iron Works, Whitworth Road, Rochdale. March 10, 1932, No. 7160. [Classes 120 (ii), 142 (ii), and 142 (iv).] A mounting for hollow cones or the like in creels in spinning frames, warping machines, looms, &c. comprises a peg over which the yarn package is passed and which has at its outer end a projecting knob or hook behind which the package is retained, and a bush, which may be adjustable, and which engages the interior of, and so positions the yarn packing. The peg a is provided with a knob e behind which the yarn support j is retained. An adjustable bush h serves to position the yarn package, which is free to revolve but cannot be removed axially unless it is raised. In a modification the knob e is replaced by an eccentrically flanged bush which is adjustable. In a further modification, the bush h is conical.
Patent GB-939730-A (GB)
Title: Liquid fuel pumps
Inventor: FREEMAN FRANK GEORGE
IPC: F02M37/04
Filed: 1960-03-01
Abstract: 939,730. Engine governors; gas turbine plant. JOSEPH LUCAS (INDUSTRIES) Ltd. Feb. 21, 1961 [March 1, 1960], No. 7181/60. Classes 57 and 110 (3). [Also in Groups XXVII and XXVIII] A liquid fuel pump, having a plurality of cam operated plungers 11 in a rotor 9, has a valve member 17 controlling the flow through a bleed passage 24, 25 communicating with the pump outlet 8 and centrifugally operated means 22 on the rotor 9 moving the valve member 17 axially to uncover the bleed passage 24 as the engine speed increases. The plungers 11 are located in axial bores in the pump rotor 9 and are held by springs 13 against a cam surface 14. The bleed passage 25 communicates with the outlet 8 via a passage 26 (Fig. 5), which also communicates with the valve member 17 through a restricted orifice 27 and passage 28. The fuel pressure in the passage 28 is controlled manually by a relief valve, having a compression spring and is disposed at right angles to the rotor axis. The compression spring fits into a piston (Fig. 4, not shown) which has fluid pressure applied according to the throttle pedal setting. If this setting is kept constant, the relief valve will open at a predetermined speed and fuel will escape from the cylinder 16 until the valve member 17 uncovers the bleed passage 25 and fuel then by-passes the pump outlet.
Patent GB-100539-A (GB)
IPC: A47G25/32
Filed: 1916-05-23
Abstract: 100,539. Busch, H. Jan. 14, 1914, [Convention date]. Hooks.-The wire suspending-hook a, Fig. 2, of a clothes-hanger is bent to form a handle b separated from the hook. The ends of the wire are turned back, and both are similarly secured to the wooden yoke-piece. Several forms are described. In one form, the bight b, Fig. 10, forming the handle is padded.
Patent GB-1511988-A (GB)
Title: Fibre optic contact alignment device
IPC: G02B6/40
Filed: 1977-02-22
Abstract: 1511988 Optic-fibre connector ITT INDUSTRIES Inc 22 Feb 1977 [1 March 1976] 07360/77 Heading G2J A single fibre or fibre bundle 20 is butt-connected by being pushed into a resilient sleeve having circumferentially spaced resilient radial indentations 13 spaced by wall portions that deflect radially outwardly when the fibre(s) is inserted. A modified triangular section is also disclosed. The sleeve is resiliently contained in a body 11.
Patent GB-495476-A (GB)
Title: Improvements in or relating to safety gas taps
IPC: F16K35/02
Filed: 1937-03-13
Abstract: 495,476. Gas cocks. GENERAL GAS APPLIANCES, Ltd., and FRANCIS, W. R. March 13, 1937, No. 7397. [Class 135] A gas cock of the kind fitted with a locking catch actuated by a sliding movement of the main actuating knob or handle on the outside of an extension of the cock plug has the actuating knob formed of a metal-bush c with a moulded outer shell d secured thereto by a cap c<2> closing the end of the bush. In the form shown in the Figure the bush is formed with an enlarged part c<1> having diametrically opposed inturned segmental flanges g adapted, under the influence of a spring f, to engage locking recesses formed between similar flanges h on the cock body. A headed screw e prevents the bush from sliding off the squared extension on the plug. In a modification a locking washer slidably mounted on the squared extension is held by a spring against the flanged end of the bush and has projections adapted to co-operate with recesses in a cover plate secured to the cock body. In a further modification the extension is slotted to accommodate a pivoted locking catch pinned to a lug on the bush.
Patent GB-845897-A (GB)
Title: Improvements in or relating to the production of coated articles
IPC: D06M13/313
Filed: 1957-03-06
Abstract: A shaped structure comprising an organic polymeric material is modified by subjecting it to ionizing electromagnetic radiation, particularly X-rays or g -rays, the structure, after having been irradiated, being contacted with one or more unsaturated organic compounds which are capable of homopolymerization, the temperature of the structure during irradiation and up until the time of contacting with the unsaturated compound being maintained below room temperature, preferably below 0 DEG C.  The polymeric material may be polyethylene, polystyrene, polybutadiene, rubber, polyisobutylene, a butadiene-styrene copolymer, polyvinyl chloride, polyvinylidene chloride, polychloroprene, poly-tetrafluoroethylene, polyvinyl fluoride, polyvinyl acetate, polymethyl methacrylate, polyethylene terephthalate, polyvinyl alcohol, cellulose, regenerated cellulose, polytetrahydrofuran, polyformaldehyde, a dioxolane polymer, a phenolurea- or triazine-formaldehyde polymer, a polyamide, a polyimide, polyacrylonitrile, cotton, wool or silk.  The unsaturated compound may be styrene, acrylic acid or a derivative thereof, itaconic acid, vinyl chloride, vinylidene chloride, vinyl acetate, a vinyl ketone or ether, divinyl ether, acrylonitrile, methacrylonitrile, 1:3-butadiene, isoprene, chloroprene, 2:3-dimethyl-1:3- butadiene, phenyl acetylene, ethylene, propylene, an allyl ester, a halogen-, sulphur-, nitrogen- or phosphorus-containing vinyl compound or a vinyl silane. Non-polymerizing compounds may be reacted simultaneously, e.g. methylene blue may be attached to irradiated nylon by reacting nylon with potassium acrylate in a solution in which methylene blue has been dissolved.  An example describes the X-ray irradiation at low temperature of nylon, wool and silk fabrics followed by treatment with sodium styrene sulphonate, the resulting fabric having improved antistatic properties. Specifications 820,120, 834,557, 838,412, and 845,898 are referred to.ALSO:A shaped structure comprising an organic polymeric material is modified by subjecting it to ionizing electromagnetic radiation, particularly X-rays or Y-rays, the structure, after having been irradiated, being contacted with one or more unsaturated organic compounds which are capable of homopolymerization, the temperature of the structure during irradiation and up until the time of contacting with the unsaturated compound being maintained below room temperature, preferably below 0 DEG C. (see Group IV(a)) for lists of suitable polymers and monomers).  Non-polymerizing compounds may be reacted simultaneously, e.g. methylene blue may be attached to irradiated nylon by reacting nylon with potassium acrylate in a solution in which methylene blue has been dissolved. An example describes the X-ray irradiation at low temperature of nylon, wool and silk fabrics followed by treatment with sodium styrene sulphonate, the resulting fabric having improved antistatic properties.  Specifications 820,120, 834,557, 838,412, and 845,898 are referred to.
Patent GB-604749-A (GB)
Title: Improvements in or relating to coated sheet materials
IPC: C08J7/04
Filed: 1944-04-24
Abstract: An interpolymer of a butyl methacrylate and methacrylamide is made by heating these ingredients in water containing soluble starch, adding ammonium persulphate and permitting further rise in temperature to produce the interpolymer in granular form, filtering, washing and drying.  The ester component may be replaced by any alkyl acrylate or substituted acrylate, particularly a methacrylate ester of a saturated aliphatic alcohol and the amide component may be replaced by the amide of acrylic acid or other substituted acrylic acid.  The interpolymer is made into a lacquer with, in example 1, xylene, isobutanol, dimethyl urea dimethyl ether and m-benzene disulphonic acid and in example 2, tetrahydrofurane, water, iron oxide pigment, paraformaldehyde and m-benzene disulphonic acid, and such lacquer is applied to the surface of sheets comprising gelatinized polyvinyl compositions, and dried, for the purpose of reducing stickiness at raised temperature and drag at ordinary temperature.  Specifications 467,402, 467,492, 571,227 and 574,157, [Group XVI], are referred to.
Patent GB-1443688-A (GB)
Title: Method of forming articles
IPC: B65D1/40
Filed: 1975-02-24
Abstract: 1443688 Vacuum or blow moulding WRIGHTCEL Ltd 24 Feb 1975 [25 Feb 1974 29 May 1974] 7573/75 Heading B5A In a vacuum or blow moulding die there are protrusions at the corners of the die extending into the interior thereof which produce an article that as moulded has the corresponding corners everted, and so reduce thinning in the corners of the moulded material. This effect is suitably attained by providing the protrusions in the form of a trigonal by-pyramid the faces of which are right-angled isosceles triangles and fitting one of the right-angled apices into the corner of the mould. The moulded object may be further strengthened by providing parallel horizontal ridge-shaped protrusions in the walls and/or bottom of the die; these protrusions are preferably staggered on adjacent walls of the die to avoid intersection of the protrusions.
Patent GB-253987-A (GB)
Title: Improvements in and relating to electric fuses
IPC: H01H85/153
Filed: 1925-03-23
Abstract: 253,987. Hope, V. March 23, 1925. Fusible cut-outs. - A fusible strip F is gripped at each end between plates D that form the blades to engage the fixed spring contacts G which assist the gripping pressure of the plates D. Where the strip is enclosed in a carrier tube A each of the plates D has a semicircular extension d to close the end of the tube, vents being provided between the plates D at the sides of, or by a slot in, the fuse strip F. The plates D are secured to a ferrule B by a cap C, being positioned by tongues d<1>, d<2> engaging recesses b<1> and the surface b<2> of the ferrule. An annular locating disc E may be interposed and may engage notches in the strip F. In another form of mounting, one of the plates D<2>, Fig. 12, is permanently attached to a lug h<1> on a divided end-plate H, the other plate D<2>being secured by screws d<3> between the lugs h<1>, h<2>. In an unenclosed handle-type carrier, a lug is provided at each end to which the plates D are secured by screws that pass through projections on the plates. The strip may be such as described in Specification 217,625 and the casing may be powder-filled.
Patent GB-181469-A (GB)
Title: Improvements in golf club
IPC: A63B53/08
Filed: 1921-03-11
Abstract: 181,469. Kinnear, W. March 11, 1921. Golf clubs.-Relates to the kind of golf club wherein the head is provided, immediately behind the face and in line with the shaft, with a weight to which further weights may be added according to individual requirements, and consists in locating the weight in a cylindrical recess in the face of the head and placing a number of spacing or weighing washers at the rear, further similar washers being provided in an annular recess in the weight itself. A cylindrical weight 11, Fig. 2, backed by lead or fibre washers 14 is secured in a recess in the striking-face 10 by means of a screw 13. A fibre facing 16 is screwed into the weight. Annular washers 17 located within the weight form an abutment for the facing. A fibre sole 22 is provided. The construction may be modified by providing an additional face member 25, Fig. 3, surrounding the cylindrical weight and being dovetailed into a groove 26. The line of the shaft is indicated by the line y, y, Fig. 2.