baber/WOPTO huggingface dataset:
Patent GB-1023401-A (GB)
Title: Manufacture of aromatic hydrocarbons
IPC: C07C5/44
Filed: 1964-01-15
Abstract: Aromatic hydrocarbons are obtained from a C3-C5 acyclic hydrocarbon or a mixture thereof with a cyclic hydrocarbon by reaction with iodine in the presence of a molten salt composition comprising a minor proportion of a hydrogen iodide-binding substance together with the inorganic iodide formed by reaction of hydrogen iodide therewith at 425-600 DEG  C. for 0.1-5 seconds while contacting the molten salt with not more than 0.5 mol. of oxygen per mol. of acyclic hydrocarbon to give not more than 50% conversion of the acyclic hydrocarbon.  The preferred salt composition is 75-99% weight lithium iodide which forms the source of iodine and 25-1% weight lithium oxide or hydroxide.  Steam may also be added to the feed.  In examples: (1) isobutene is converted to p-xylene; (3) propene and toluene are converted to naphthalene and benzene; (4) propene is converted to benzene; (5) isobutene and m-xylene are converted to p-xylene, dimethylnaphthalenes and trans - m,m1-dimethylstilbene.
Patent GB-537926-A (GB)
Title: Improvements in measuring or indicating apparatus for measuring or indicating the angle of rotation of a rotatable spindle for use in, for example, radio receivers
IPC: H03J1/04
Filed: 1940-01-30
Abstract: 537,926. Indicating-apparatus. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and HYDE, T. B. Jan. 30, 1940, No. 1878. [Class 106 (iv)] [Also in Group XXXVI] An arrangement for indicating the angular position of a spindle S, for example in a shortwave radio apparatus, comprises a number of plane reflecting surfaces M1 .. M4 laterally spaced along the spindle and passing through the axis of the spindle in different angular positions, a collimator C with a source of light and a hair-line for directing a beam of light on the reflectors, and a scale comprising several super-imposed sections S1 .. S4 corresponding to the several reflectors, the whole arrangement being such that the hair-line is reflected by the several reflectors to traverse the several scale sections in succession. To give wider spacing between the scale sections, the reflecting surfaces may be inclined to the axis of the spindle at varying angles.
Patent GB-560130-A (GB)
Title: Improvements in or relating to brushes
IPC: A47L17/08
Filed: 1943-02-05
Abstract: 560,130. Brushes. SHILLAKER & CO., Ltd., W., and HEISTERCAMP, C. H. Feb. 5, 1943, No. 1930. Addition to 545,988. [Class 19] One or both ends of the bristles of the pot scouring brush described in the prior patent are cut to form a V or chisel-shaped edge C. When only one end is so cut, the other end may be cut square, or at an angle of 45‹ as in the prior patent.
Patent GB-1221011-A (GB)
Title: Radial piston pumps
Inventor: FREEMAN FRANK GEORGE
IPC: F04B1/04
Filed: 1966-10-18
Abstract: 1,221,011. 011. Radial piston pumps. JOSEPH LUCAS (INDUSTRIES) Ltd. Jan.15, 1968 [Oct.18, 1966], No.2037/68. Divided out of 1, 220, 216. Heading F1A. The track ring 17 is movable against the bias of a spring 20 to reduce its eccentricity relative to the rotor 13 by the resultant of the piston forces acting thereon. The ring is guided for movement by parallel flat surfaces 26 and 27 inclined at an acute angle to the direction of action of the spring 20. Liquid is discharged from the bores 14 to an outlet 23 through a kidney-shaped port 25 in a part 24 between the rotor 13 and the end cover 11.
Patent GB-691102-A (GB)
Title: Photographic silver halide emulsions containing dyestuff intermediates
IPC: G03C7/32
Filed: 1949-04-26
Abstract: 1 - Phenyl - 3 - p - (chloromethyl) - benzoylamino - 5 - pyrazolone is prepared by heating together 1 - phenyl - 3 - amino - 5 - pyrazolone, p - (chloromethyl) - benzoyl chloride, and dioxane.  The tetramethylisothiouronium salt of this compound is prepared by mixing with tetramethylthiourea and heating. 1-Hydroxy-2 - naphthoic acid - 411 - chloromethylbenzoyl - 41 - aminoanilide and 411 - chloromethylbenzoyl - 41 - aminobenzoylacetoacetanilide and their tetramethylisothiouronium salts are similarly prepared.  1 - Hydroxy - 2 - naphthoic acid - 41 - aminoanilide is prepared by reducing 1-hydroxy-2-naphthoic acid-41-nitroanilide with iron powder and hydrochloric acid.  1 - Hydroxy - 2 - naphthoic acid - 41 - nitroanilide is prepared by reacting together 1-hydroxy-2-naphthoic acid, thionyl chloride, and 4-nitroaniline in pyridine solution. 41-Aminobenzoylacetoacetanilide is prepared by reducing 41 - nitrobenzoylacetoacetanilide with hydrogen in presence of Raney nickel catalyst.
Patent GB-734537-A (GB)
Title: Improvements in or relating to cores for electrical inductances
Inventor: BAGSHAW GEORGE WILLIAM
IPC: H01F17/04
Filed: 1953-01-24
Abstract: 734,537. Inductors. PLESSEY CO., Ltd. Jan. 25, 1954 [Jan. 24, 1953], No. 2110/53. Class 38 (2). An inductor system comprises a number of inductors, each comprising coils 8 wound on a former 7 and mounted on a common base plate 10. The inductance of each is varied by movement therein of a magnetic dust core 3 which is held in a threaded insulating socket 2, the heads 1 of the sockets being provided with grooves in which is located an elastic restraining device 12 to - prevent undesired rotation of the sockets 2.
Patent GB-783858-A (GB)
Title: Improvements in side delivery rakes, tedders, swath turners and the like
IPC: A01D78/00
Filed: 1953-10-09
Abstract: The subject-matter of this Specification is identical with that of Specification 783,857, but the claims differ.  Specifications 725,708, 783,859 and 783,860 also are referred to.
Patent GB-415758-A (GB)
Title: Improvements in and relating to electric clocks
IPC: G04B13/00
Filed: 1933-01-24
Abstract: 415,758. Electric clocks. MUIRHEAD & CO., Ltd., and MUIRHEAD, F. H., Elmers End, Kent. Jan. 24, 1933, No. 2332. [Class 139.] In a synchronous motor clock means are provided in the gear train whereby intermittent rotation of the hands is secured. For example, an eccentric pin 3 on the rotor spindle 1 may drive the train step-by-step through a toothed wheel 8, or the spindle 1 may drive the first wheel of the train through Geneva stop mechanism. Alternatively, or in addition, the step-by-step drive may be fitted at any other point in the gear train.
Patent GB-160053-A (GB)
Title: Improvements in or relating to sink cones, sink wastes and the like
IPC: E03C1/264
Filed: 1920-01-27
Abstract: 160,053. Claughton, J. H. Jan. 27, 1920. Sink waste fittings. -In order to provide a full bore flow through and past the grating, the flange 1<x> of the outlet pipe is formed with passages 2 exterior to the grating. The wings 3<x> of the grating are supported by projections 4 having upstanding wings 4<x> which are turned down upon the wings 3<x>.
Patent GB-523703-A (GB)
Title: Improvements relating to centrifugal pumps
IPC: F04D1/12
Filed: 1939-01-24
Abstract: 523,703. Centrifugal pumps. BEAUMONT, E. G. E. and DOWLE, R. C. G., Jan. 24, 1939, No. 2481. [Class 110 (i)] In a centrifugal pump of the whirling chamber type, such as that described in Specifications 493.333 or 501,943, the inlet G for the liquid to the casing D enclosing the whirling chamber A is so disposed that, when the chamber is otherwise closed in an airtight manner, the inlet is covered by the liquid and air &c. is trapped in the casing and controls the inflow of liquid. The delivery is effected by the centrifugal pressure in A and takes place through a pipe J carried by a block K, which may be eccentrically mounted to adjust the pipe mouth relatively to the wall of the chamber. In another form, the inlet pipe G is at the bottom of the casing and feeds a pipe rising into the chamber A. A port in the upper part of the casing maintains atmospheric pressure in the casing until it is covered by the rising liquid.
Patent GB-1058441-A (GB)
Title: Improvements relating to the thermal decomposition of metal salts to produce magneticmetal oxide compounds
Inventor: ELLIS JOHN DAVID
IPC: C01B13/14
Filed: 1962-07-23
Abstract: A magnetic metal oxide compound, e.g. a ferrite, is formed by disintegrating into droplets a feed material solution, suspension, slurry or melt containing thermally decomposable salts of the appropriate metals in a reaction vessel in which the droplets move in countercurrent to a stream of hot gas in the presence of water vapour to form a particulate oxide compound product while the droplets and their decomposition products are in free fall in said stream.  The product may be further heated, e.g. in a fluidized bed.  In examples, (1) FeCl2 and ZnCl2 produce ZnO.Fe2O3, (3) FeCl2 and NiCl2 produce NiO.Fe2O3, (4) FeCl2 and BaCl2 produce BaO.6Fe2O3, (5) FeCl2 and BaCl2 produce BaFeO4.
Patent GB-1489344-A (GB)
Title: Hair dyeing composition
IPC: D06P3/04
Filed: 1974-01-18
Abstract: 1489344 Hair dyeing composition UNILEVER Ltd 15 Jan 1975 [18 Jan 1974] 02507/74 Heading D1B A composition for use in dyeing keratinous fibres, particularly hair, comprises an anaerobic mixture of one or more aryldiamines of formula:  where R 1 , R 2  and R 3  independently are H, C 1-4  alkyl or C 1-4  hydroxyalkyl or a salt thereof; and one or more substituted catachols of formula: where R is OH, NH 2 , mono-C 1-4  alkylamino, di-C 1-4  alkylamino, N-alkyl-hydroxy alkylamino, C 1-4  alkyl, alkoxy, hydroxyalkyl, alkoxyalkyl, or aminoalkyl; provided that when R is OH the substituted catechol is a 1, 2, 4- or 1, 2, 5-trihydroxy benzene. Preferred diamines are p-phenylenediamine and p-toluylenediamine. The amount of each constituent is preferably from 0.1 to 6% and the preferred molar ratio of diamine to catechol is from 1:8 to 4:1. The composition may contain other couplers, antioxidant, propellant, thickener, surfactant, foam booster, conditioner, preservative and perfume. The composition is applied to the fibres and allowed to react in the presence of atmospheric oxygen.
Patent GB-813148-A (GB)
Title: Multiple source radio-active device
IPC: G21G4/06
Filed: 1957-01-23
Abstract: 813,148. Sources of radio active radiation. FOXBORO CO. Jan. 23, 1957 [Jan. 26, 1956], No. 2516/57. Class 98(1) In a container for two or more radio active sources of radiation, the sources are mounted in a cylindrical housing having at least one radiation-permeable window in its cylindrical wall, and means to rotate the sources about the housing axis to bring each source opposite a window from a shielded position, the sources following circular paths and always remaining in the housing. As shown in Fig. 5, a cylindrical shielding body 25 is formed with threaded bores 41 in which sources of radiation are adjustably mounted. The sources consist of threaded plugs 41<SP>1</SP> formed with chambers 48 which are filled either with a gas such as krypton 85 or a solid such as strontium 90 and closed by a window 49. The cylindrical body 25 is supported for rotation in a shielding cylinder 23 by a plug 24 ;at one end, having a boss 30 pivotally supporting one end of the body 25, and an end portion 31 rotatable within the cylinder 23 by means of a knurled knob 32. The rotation of the inner cylinder is limited by pin-and-slot means. A radiationpermeable window 27 (see also Fig. 6), is formed in the cylinder 23. The body 25 may be rotated between three positions in which a screw 40 engages with one of three recesses 36, 37, 38. In one position the sources are all clear of the window 27 in another position one of the sources is opposite the window; and in the third position two of the sources are opposite the window. The sources may be adjusted along their threaded bores by screw driver slots 41<SP>11</SP>, 42<SP>11</SP>, 43<SP>11</SP> accessible through holes 45, 46, 47 in the cylinder 23. The limitation of the turning movement of the body 25 is such that the sources can never be brought opposite the screw driver holes. In an alternative form, the main body 25 may be held stationary, the housing 23 rotating with respect thereto.
Patent GB-1079002-A (GB)
Title: Regulated electric power supplies
IPC: H02M3/137
Filed: 1965-04-15
Abstract: 1,079,002. Automatic voltage or current control. LAMBDA ELECTRONICS CORPORATION. April 15, 1965 [April 16, 1964], No.2528/67. Divided out of 1,079,001. Heading G3R. The Specification relates to those embodiments described in the parent Specification wherein the capacitor (C201, Fig. 1 not shown) begins to discharge back into the supply, through a rectifier (D200), until the remaining energy equals that required by the load; this condition is determined by potentiometer circuits (R200, R201 and R202, R203) that effect triggering of a thyristor (GR202) which discharges the capacitor into the load.
Patent GB-1130534-A (GB)
Title: Improvements in or relating to the production of dome-shaped articles from sheet metal
IPC: B21D26/06
Filed: 1966-01-19
Abstract: 1,130,534. Stamping. CHEMOKOMPLEX VEGYIPARI-GEPES BERENDEZES EXPORT, IMPORT VALLALAT. 19 Jan., 1966 [19 Jan., 1965], No. 2533/66. Heading B3Q. A method of cupping comprises placing a flat workpiece 3 over a convergent die-passage 2 without using a work-holder, and pressing the workpiece through the passage by a sudden discharge of energy in a gaseous or liquid medium, e.g. air or water. The energy may be released by spark discharge, or by an explosive charge 7 carried by an adjustable stand supported on the die. A reflector 8 is also carried by the stand, opposite the conical &c. diepassage, which opens into a releasable receptacle 4 into which the finished work may fall. The die may be suspended from a hook 9 and lowered into water, and the die-space may be evacuated or sufficiently large for back-pressure not to interfere with the cupping. Grease may form a seal between the workplate and die. The work may be sized by a further explosive-forming operation.
Patent GB-538206-A (GB)
Title: Systems for the transmission of modulated radio electric waves
IPC: H03F3/52
Filed: 1940-02-09
Abstract: 538,206. Valve modulating circuits. STANDARD TELEPHONES and CABLES, Ltd. Feb. 9, 1940, No. 2537. Convention date, Feb. 14, 1939. [Class 40 (v)] An arrangement for modulating an ultra short wave by a wide frequency band comprises a balanced amplifier with the carrier input applied between the cathodes and the modulating frequencies to the grids in parallel. The valve inter-electrode capacities are neutralized to obtain a low effective capacity in the plate circuit. Fig. 1 shows a push-pull amplifier driven from the cathode circuit in which a grid impedance Z4 neutralizes the valve inter-electrode capacities. Fig. 4 shows a transmitter in which the grid impedance consists of a quarter wave line 13 terminated in a variable inductance 12 and arranged to reduce the capacitance to ground of the circuit. The drive is effected over a quarter wave line 2, 21 and the impedance of the input circuit is adjusted by varying the surge impedance of the line by the condenser 6 and by the coupling resistances 3, 3<SP>1</SP>. The heating current for the driven stage is fed through conductors arranged within the transmission lines which may be extended through another quarter wave line 5, 5<SP>1</SP> which form a choke for high frequency. Modulation is applied between the grids and earth across resistance 11 and to the midpoint of inductance 12, Fig. 4, or to the midpoint of inductance Z4, Fig. 1.
Patent GB-1118652-A (GB)
Title: Magnetic ticket
IPC: G07F7/08
Filed: 1966-01-19
Abstract: 1,118,652. Recording and playback. COMPAGNIE GENERALE D'AUTOMATISME. 19 Jan., 1966 [22 Jan., 1965], No. 2581/66. Heading G5R. [Also in Division B8] A magnetic recording on a ticket is applied, for example by an inclined recording head 3 (Fig. 8) so that there are a series of parallel lines 7 of equal magnetization at an angle to the edges of the ticket. This prevents counterfeiting by domestic tape recorders. A further recording employing a different frequency may be superimposed with the lines of equal magnetization transverse to the ticket. The recordings may be applied in the form of lengths of pre-recorded magnetic strip secured to a paste board or similar base, and several such strips may either be arranged so that a single sensing head can check the ticket regardless of which way up it is inserted in the machine, or alternatively the strips may carry different recordings to be detected by different heads. The recordings preferably consist of several superimposed sinusoidal signals, which may be disposed at different angles to the ticket. A compound recording head with the gaps 13, 14 in V- or X-form may serve to scan the ticket for signals of two different frequencies disposed at different angles.
Patent GB-1291762-A (GB)
Title: Novel n,n-disubstituted ureas and thioureas, processes for their preparation, and compositions incorporating them
IPC: A01N47/36
Filed: 1970-01-20
Abstract: 1291762 Tetrahydropyran derivatives and intermediates therefor ROUSSEL UCLAF 20 Jan 1970 [20 Jan 1969] 2600/70 Heading C2C Novel tetrahydropyran derivatives of the Formula I wherein R is an alkyl radical, Z is an oxygen or sulphur atom and X and Y are hydrogen, chlorine or bromine atoms or nitro, trifluoromethyl, alkoxy, alkylthio, alkyl, substituted or unsubstituted alkenyloxy, alkoxycarbonyl, alkylsulphinyl or alkylsulphonyl groups; are obtained by reacting appropriate 2-alkylaminotetrahydropyrans with isocyanates or isothiocyanates of the Formula III 2-Methylaminotetrahydropyran may be obtained by reacting dihydropyran with methylamine. Isocyanates of Formula III may be obtained by reacting the corresponding primary amines with phosgene. 1 - (m- or p - Aminophenoxy) - 3 - chloroprop- 2-ene is prepared by reacting sodium m- or pnitrophenate with 1,3-dichloropropene and reducing the 1 - (m- or p - nitrophenoxy)-3- chloroprop-2-ene so produced. Herbicidal compositions contain the above tetrahydropyran derivatives of Formula I as active ingredients in association with suitable vehicles.
Patent GB-1533522-A (GB)
Title: Metal bonding method
IPC: B23K35/00
Filed: 1975-10-31
Abstract: 1533522 Brazing; welding by pressure ASSOCIATED ENG Ltd 31 Oct 1975 [15 Nov 1974] 2639/77 Divided out of 1532628 Heading B3R In a method of bonding two pieces of commercially pure Al, an interlayer, e.g. a foil on a layer dposited electro-chemically, of Cu or Cu rich alloy including 95% Cu is provided and the pieces are pressed together at a temperature of 560-640‹ C. (i.e. below the melting point of Al but at least equal to the eutectic temperature of the combustion of Al and the interlayer metal to produce a eutectic diffusion bond between the pieces). Articles which may be so produced include an internally threaded member (Fig. 3, not shown), a slitted heat exchanger (Fig. 5, not shown), a heater exchanger having half tubes (Fig. 7, not shown) and tubes having flared socket joints (Fig. 9, not shown).  Pressure may be applied by a differential expansion jig which, being of stainless steel expands less than the Al upon heating so that finger tightening of the nuts 19 prior to heating will apply pressure upon heating, which may be carried out at or above atmospheric pressure in a controlled atmosphere, e.g. Argon.
Patent GB-212232-A (GB)
IPC: B65D45/30
Filed: 1924-02-02
Abstract: 212,232. Udelhoven, P. Feb. 28, 1923, [Convention date]. Metal drums.-A metal container is provided with a metal strengthening ring c, Fig. 2, at its end with inwardly projecting parts d and h providing counter pressure surfaces between which a head b is held. The rim of the bodv is bent inwards and welded to the edge of the head, the joint being arranged to be below the top surface of the container. In an alternative shown in Fig. 3, projections d<1>, h<1> on a strengthening ring c' again form counter pressure surfaces on a head b<1>, but the head is held in place by a divided ring l and the rim of the body is welded to the strengthening ring.
Patent GB-607172-A (GB)
Title: Improvements in or relating to ladders
IPC: E04F11/06
Filed: 1946-01-28
Abstract: 607,172. Loft ladders &c. LOFT LADDERS, Ltd., and BERNER, C. A. O. Jan. 28, 1946, No. 2770. [Class 20(ii)] Locking means for downwardly-extending telescopic ladders, particularly applicable as loft ladders, comprise a detent 5 carried by a tread 2 of the main ladder section and at least one co-operating spring catch carried by a tread 7 of the movable section. Each spring catch comprises a spring 13 in a tubular carrier 14 and a longitudinally movable bolt 10 with a finger grip 15 at one end and a cam face having a slot 12, at the other end. Preferably there are two spring catches, one on the top thread of the movable section and the other on the bottom tread.
Patent GB-821051-A (GB)
Title: Means for attaching supporting roller axles or axle journals to the band of an endless band conveyor
IPC: B65G39/20
Filed: 1956-01-30
Abstract: 821,051. Endless-band conveyers. UNTERTAGE-MASCHINENBAU G.m.b.H. Jan. 30, 1956 [Jan. 29, 1955], No. 2845/56. Class 78 (1). In an endless band conveyer the band of which is equipped with rollers for running on supporting tracks, the roller axle journals are mounted on springs in such manner that the mounting permits arcuate rocking movement of the rollers about an axis parallel to the roller axle and on which the springs are anchored to the band. The band may be an articulated steel plate conveyer band, as shown, or an endless belt supported on transverse carriers secured to its underside and on which tho rollers are mounted. In one embodiment, ment, Fig. 1, each spring is a leaf-spring 5 anchored to a bracket 3 on one of the steel plates 2 of the band and carrying the axle journal of the roller 6 at its free end. The plate 2 may also be connected with its carrying chains 4 through the bracket 3. In a second embodi- Fig. 2, a transverse torsion-spring 7 is bolted to an associated plate of the band and carries at each end an arm 9 carrying the roller axle at its free end 10. In a third embodiment, Fig. 3, a leaf-spring 12 extends forwardly from an anchorage pivot-pin 11 on one plate and its other end slidingly engages between a pin 14 and a bracket 15 on an adjacent plate, the bracket 15 being the means of connecting each plate to the chain. The journal 10 of the roller 6 is secured midway between the ends of the spring. By this construction it is said that the spacing between adjacent pairs of rollers along the band can be increased by the length of one plate for a given degree of sag between adjacent rollers, e.g. the rollers may be associated with every fifth plate instead of with every fourth plate in the case of rollers mounted at the pivotal connection points of adjacent plates.
Patent GB-305036-A (GB)
Title: A process for cleansing or scouring iron and steel by electro-chemical means
IPC: C25F1/06
Filed: 1929-01-28
Abstract: 305,036. Marino, Q. Jan. 28, 1928, [Convention date]. Metals, pickling.-Iron or steel surfaces are cleaned by treatment first as anode and alterwards as cathode in an electrolyte consisting of sodium or potassium sulphate added to a solution obtained by treating pulverized phosphate of lime or other phosphate with sulphuric acid of strength 10-20‹ BÚ. The electrolyte may be heated to facilitate the removal of rust. The articles are then brushed. According to the Specification as open to inspection under Sect. 91 (3) (a) the electrolyte is heated in lead receptacles furnished with lead tubes for the passage of vapour; the anodic treatment may take place at 70-80‹ C., a current density of 1-600 amps per sq. metre being employed. This subject-matter does not appear in the Specification as accepted.
Patent GB-1047791-A (GB)
Title: Process for improving the storability of phenol resols
IPC: C08L61/10
Filed: 1964-01-22
Abstract: Trioxan is added as thinner to phenol resoles at a pH above 7 in amount providing 5 to 20 wt. per cent of the total to improve the storability and reduce the viscosity of the resole. The mixtures are stated to accept a higher proportion of filler, e.g. carbon, than the resole alone and to be capable of cold-hardening under the action of an acid.  In the example such a mixture plus a carbon powder filler of grain size 0 to 0.38 mm. is hardened with a mixture of toluene sulphonic acid and toluene sulphochloride.