baber/WOPTO huggingface dataset:
Patent GB-727867-A (GB)
Title: Improvements in preparation of maleuric acid
IPC: C07C273/18
Filed: 1953-08-24
Abstract: In the preparation of maleuric acid maleic anhydride and urea are reacted in a solvent for both reactants at a temperature in the range from about 20 DEG  C. to about 80 DEG  C., said solvent consisting in a saturated aliphatic monocarboxylic acid having not more than four carbon atoms.  Preferably the maleic anhydride is reacted with urea in the molten liquor from a previous operation.  In examples: maleuric acid is obtained by heating maleic anhydride and urea in glacial acetic acid (1) and (5) and batches of maleuric acid are obtained carrying out the reaction in a reaction medium which is the molten liquor from a previous reaction (2)-(4).
Patent GB-803684-A (GB)
Title: Capacitor
IPC: H01G4/28
Filed: 1956-07-27
Abstract: 803,684. Fixed capacitors. ERIE RESISTOR CORPORATION. July 27, 1956 [Sept. 26, 1955], No. 23255/56. Class 37. A fixed capacitor is made by coating a highdielectric constant titanate unfired ceramic base 1 with a metal 3 and then coating the metal with a ceramic 4 of similar composition to that of the base, firing the assembly and then coating it with another film of metal 7. The metal is usually palladium, to withstand the firing temperature. The sides of the base may be rounded to avoid high dielectric stress. Specification 691,240 is referred to.
Patent GB-422771-A (GB)
Title: Improvements in or relating to sieves for coal
IPC: B07B13/00
Filed: 1934-08-13
Abstract: 422,771. Sifting-apparatus. VLOEBERGHS, A., 209, Avenue d'Italie, Antwerp, Belgium. Aug. 13, 1934, No. 23369. [Class 117] A screen, mainly intended for the removal of flat pieces from coal, comprises a grid formed of angle bars 1 disposed with the ridges uppermost and in one plane, and a series of vertical flat bars 4 disposed in the spaces between the bars 1. These spaces increase in the forward direction of the screen, preferably by decreasing the width of the flanges of the bars, and the lower edges of the bars 4 are also inclined upwards so that the vertical dimension of the screening openings also increase in the same sense. To allow adjustment of the openings, the bars 4 are secured to transverse bars 5, one at the feed end being pivotally supported and the other at the discharge end being vertically adjustable as by screw-and-nut devices.
Patent GB-783371-A (GB)
Title: Apparatus for mining and conveying coal and other minerals
IPC: B65G19/22
Filed: 1955-08-15
Abstract: 783,371. Conveyer chains. ROMBERG, H. Aug. 15, 1955 [Sept. 22, 1954], No. 23443/55. Addition to 781,663 [Group XXX]. Class 24 [Also in Groups XXI and XXX] In an apparatus as described in the parent Specification, the links of the conveyer chains are so modified that the chain presents a substantially continuous flat inwardly facing surface. The outer configuration of the vertical links 1 is rectangular, whilst the limbs 5 of the horizontal links 4 have vertically downward directed projections 6 of such length and height that they bridge the intermediate space between the vertical links and the lower edges thereof lie in the same horizontal plane as those of the vertical chain links.
Patent GB-501416-A (GB)
Title: Improvements in apparatus for winding electro motor or dynamo armatures
IPC: H02K15/09
Filed: 1937-08-27
Abstract: 501,416. Reeling wire. NOLTEN, F. Aug. 27, 1937, No. 23477. [Class 120 (ii)] [Also in Groups XXXV and XIX] In apparatus for winding motor or dynamo armatures, the armature F is mounted on a rotating table A with its axle parallel to the plane of rotation of the table and the wire M is fed into the slots by a guiding finger L adjustable on the free end of a cam-actuated lever J mounted on a pivot H<3> which can be adjusted to regulate the amplitude of the lever movement. The armature spindle F<1> is rigidly clamped to brackets E adjustable in slots in the table. The wire is fed from a spool N fitted with adjustable brakes. Counting mechanism may be provided preferably adapted to stop the driving motor after a predetermined number of revolutions of the table. For making pre-formed armature coils, the table is removed and placed on an attachment whereby it is mounted in a vertical plane and driven from the shaft B through bevel gears.
Patent GB-706098-A (GB)
Title: Improvements in or relating to cosmetic powder dispensing devices
IPC: A45D33/02
Filed: 1950-09-25
Abstract: 706,098. Powder dispensers. FISHER, G. H. D. Sept. 10, 1951 [Sept. 25, 1950], No. 23485/50. Class 18 A powder dispenser comprises a hollow slightly tapered body 1 having a closure member 3 connected by a rod 7 to a knob 8. and retained in its closed position by a spring 13 positioned between a partition 2 of the body 1 and the knob 8. By pressing on the knob 8, the member 3 is raised from its seating with the body 1 to permit powder to be dispensed.
Patent GB-224997-A (GB)
Title: Improvements in tents and the like
IPC: E04H15/00
Filed: 1923-09-20
Abstract: 224,997. Whittle, G. B. Sept. 20, 1923. Tents; tent-pole fittings. - The cover of a tent or marquee having no central pole or outside ropes and pegs, is maintained taut by adjustment of a block 10 in co-operation with the downward pull of the covering by springs 2. The frame consists of inclined mem. bers 3, a crown plate 4, sockets 5 and base plates 7 secured by spikes 8. The blocks 10 and crown plate 4 are adjustable on a short rod 9, which may carry hooks 14 for clothes or hanging lamps. As applied to a marquee, a number of frames, as shown in Fig. 3, are provided, braced by members 25, 27, 28, 30, and connected by horizontal rods 31. The top of the cover may rest on a number of spring plungers 34, or these may support a rod on which the cover rests.
Patent GB-1305541-A (GB)
IPC: H04N17/00
Filed: 1964-06-05
Abstract: 1305541 Direction finding J R NARBAITSJAUREGUY 5 June 1964 [7 June 1963] 23529/64 Heading H4D In a television receiver target display system, bearing and elevation traces are superimposed on the screen to facilitate measurement of the target co-ordinates. The traces are formed so as to correct for distortion introduced by the circuit between the camera and receiver. The trace circuits provide non-linear saw-tooth voltages which are formed of consecutive linear wave forms of gradually decreasing gradients. A linear saw-tooth voltage generator supplies the input to a series of parallel selectors which select in sequence a number of slope modifiers which alter the slope of the linear saw-tooth incrementally along its length prior to its application to the display.
Patent GB-157064-A (GB)
Title: Improvements in or relating to brake pulleys for motor vehicles
IPC: F16D65/10
Filed: 1920-08-11
Abstract: 157,064. Czarnecki, F. Jan. 13, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Energy-absorbing elements.-A brake drum for a motor vehicle is adapted to drive lighting, cooling, or other devices, and may for this purpose have a toothed part d or a belt groove. The teeth may be external and bevelled. The drum may be keyed on the back axle.
Patent GB-712313-A (GB)
Title: Improvements in or relating to methods of forming insulating coatings on elongated members and articles formed by such methods
IPC: B05D1/18
Filed: 1950-09-26
Abstract: In a method of forming an insulating coating on at least the major part of an elongated metallic member having one or more metallic projecting parts, such as the handle of a domestic electric appliance, the member is dipped in a thermoplastic insulating material heated to a fluid condition and then removed to allow the coating to solidify.  A poly-vinyl chloride composition is suitable. The covering may be impressed with any pattern by the aid of heated dies and its thickness can be controlled by variation of the temperature of the coating material and of its composition.  Before coating, the member is preferably degreased with trichlor ethylene and subjected to a surface treatment such as shot blasting followed by phosphate treatment.
Patent GB-798594-A (GB)
Title: Improvements in or relating to transducers
Inventor: NYE DUDLEY DODGE
IPC: G01D5/241
Filed: 1956-08-01
Abstract: 798,594. Variable capacitors. ROBERTSHAW-FULTON CONTROLS CO. Aug. 1, 1956 [Dec. 6, 1955], No. 23757/56. Class 37. [Also in Group XXXVIII] A transducer for converting a physical displacement linearly into a variation in capacitance includes a means of varying the zero and the span of the scale independently and in such a manner as not to affect the linearity of the transducer. The transducer comprises a rotatable plate 22, the tangent of the angle of rotation being proportional to variation in pressure, and a fixed plate 34 adjustable in the horizontal and vertical directions of the Figure. Horizontal displacement varies the span and vertical displacement varies the zero setting of the scale of the transducer.
Patent GB-1275173-A (GB)
Title: Bleaching compositions
Inventor: VORSATZ FRITZ ARTUR
IPC: A61J3/00
Filed: 1970-05-15
Abstract: 1275173 Bleaching compositions L'OREAL 15 May 1970 [16 May 1969] 23758/70 Heading D1P A composition comprises a homogeneous mixture of solid powdered particles of generally less than 1mm diameter granulated with a water-soluble binder, the mixture of solid particles constituting a conventional oxidizing composition suitable for bleaching hair after the addition thereto of an aqueous medium e.g. comprising H 2 O 2 . The mixture may contain 30-50% by weight of per-salts e.g. persulphates and perborates, 10-20% of magnesium carbonate and at least one thickener perfume or ammonium salt. The composition may be prepared by spraying the powder mixture with a solution of the binder in a granulator. Suitable binders are polyvinyl pyrrolidone and glucose dissolved in e.g. water and/or alcohol to the extent of 0.5-10% by weight. The granules may have a size of 1-6mm and contain 0.1-10% by weight of binder. To allow for evolution of ammonia during granulation, the initial concentration of ammonium salts, if any, in the powder can be greater than that desired in the granulated mixture and also the binder can be dissolved in an aqueous solution with an ammonia concentration of 0.05-0.2% by weight.
Patent GB-332422-A (GB)
Title: Improvements in or relating to variable speed gears
IPC: F16H9/12
Filed: 1929-08-02
Abstract: 332,422. McPhie, R. Aug. 2, 1929. Expanding - pulley gearing comprises pulleys with twin conical treads having teeth adapted to coact with a pitch chain. The driving-pulley has a fixed flange 11 and a movable flange 11<a>, and the driven pulley fixed and movable flanges 12<a> and 12. The pulley teeth 22 are in pairs, one on each flange, and are of such a number and so spaced that when a pulley is fully opened with the chain at its smallest diameter, the pulley teeth correspond in pitch to the pitch of the chain or to a multiple part of it, and so that, when the pulley is closed step by step, the effective diameter at each step is such that the pulley teeth correspond to multiples of the chain pitch. The teeth 22 and chain 16 engage as indicated in Figs. 4 and 5. In the arrangement shown, the teeth 22 are supported from behind the pulley flange by springs 22a so that in changing from one speed-step to the next the teeth 22 are thrust yieldingly flush with the flange gear surface. The movable flanges 12<a>, 12 are connected by a link 23, Fig. 2, so as to be operable in unison, and a pivoted cam 29, Fig. 1, is jointed at the link 23 so as to operate a sliding rod 28 carrying a jockey pulley 27 to keep the chain 16 in tension. Control is effected by a lever 21 moving over a quadrant 25 with spaced holes 25a corresponding to the gear steps. Locking of the lever 21 is effected by a handle 26, Fig. 3, which pivots transversely against a spring 26<a> to withdraw a locking-pin 26b from one of the holes 25a. A modification is described in which pulley teeth 22 are withdrawn by helical ramps operated in unison in changing speed by the act of unlocking the lever 21, Fig. 3, by the handle 26.
Patent GB-1500968-A (GB)
Title: Apparatus for cleaning textiles leather or fur with an organic solvent
IPC: D06F43/08
Filed: 1975-06-02
Abstract: 1500968 Dry-cleaning HOECHST AG 2 June 1975 [1 June 1974] 23781/75 Heading D1A In dry-cleaning apparatus in which solvent is circulated through a perforated drum 5 in a casing 4 from a solvent vessel 8 with a solvent cooling system, vapour is removed from the casing compressed and either returned to the casing through a heat exchanger where it is heated or condensed and returned to vessel 8, casing 4 being usable as a solvent distillation vessel. Compressor 10 reduces the pressure in casing 4 before the commencement of cleaning and the return of pressure at the end of cleaning operates a presso static control to release door 24. Suitable cleaning solvents are trichlorofluoromethane, tetrachlorotrifluoroethane trichlorodifluoroethane or trichlorotrifluoroethane or a mixture of two or more of these.
Patent GB-1316496-A (GB)
Title: Hollow articulated arms
IPC: B66C23/70
Filed: 1970-05-18
Abstract: 1316496 Mobile buffing arm apparatus G F WEYHAUSEN 18 May 1970 [17 May 1969] 23909/70 Heading B8H [Also in Division F1] A hollow articulated arm has a mechanically operable extension stage 6 in telescopic relation with an hydraulically operable extension stage 5, the stage 6 being extendible beyond the stage 5, an extension cylinder unit 3 located on the rear wall of, and within, the hydraulically operable extension stage 5, having a piston-rod 1 pivotally connected to a support 13 at the rear end of the arm. Conduits for the supply and exhaust of hydraulic fluid are indicated diagrammatically at 7 and 8. Bolts (not shown) may be provided to limit extension of the stages. As shown the stage 6 is manually extended. The arm may be employed on a loading crane (Fig. 3, not shown). The radius of action of the arm may be increased by duplicating the cylinder unit 3.
Patent GB-679893-A (GB)
Title: Vat dye composition and methods of dyeing
Filed: 1950-09-29
Abstract: Fibrous materials are dyed at elevated temperatures from a bath which contains a vat dye, alkali and reducing agent and also at least one-quarter the weight of the dye of an agent for preventing over-reduction selected from the group consisting of (a) nitrogen compounds in which nitrogen is attached by covalent linkage to oxygen and at least one valence to an element other than oxygen or nitrogen but excluding tertiary amine oxides and compounds in which the linkage between nitrogen and oxygen is ionic; (b) inorganic nitrites; and (c) inorganic halogenates. Examples of such compounds are nitroparaffins, aromatic nitro compounds, nitroso-compounds and hydroxylamines.  Examples are given in which the following dyestuffs and agents for preventing over-reduction are used: (1) 3,31-dichloro-N-dihydro-1,2,11, 21-anthraquinone-azine [I] and nitropropane; (2) dyestuff [I] and hydroxylamine hydrochloride; (3) a brown anthrimide carbazole dye and nitropropane; (4) dyestuff [I] and potassium hydroxylamine disulphonate; (5) dyestuff [I] and nitropropane-used in a printing paste; (6) dyestuff [I] and N-(2-nitro-2-methylpropyl) sulphanilic acid; (7) dyestuff [I] and N-(2-nitro-2-methylpropyl) sulphanilic acid, 3 - (2 - ethoxyphenyl) - 5 - amino isoxazole, azoxybenzene, nitroso-diphenylamine, 1 - carbethoxy - 4 - nitroso - piperazine, nitromethane, N - (3 - phenyl - 5 - isoxazoyl) - phenol-4-sulphonamide, 3 - (2 - ethoxyphenol) - 5 - (4) - isoxazolone or 3-phenyl-5-hydroxy isoxazole-used in a pigment dispersion process; (8), (9) and (11) dyestuff [I] and sodium nitrate; (10) 1,2,6,7 - dibenzpyrene - 3,8 - quinone and sodium nitrite; (12) dyestuff [I] and sodium nitrite-used in a printing paste; (13) dyestuff [I] and sodium nitrite-used in a pigment dispersion process; (14) dyestuff [I] and sodium chlorate, bromate or iodate; (15) dyestuff [I] and sodium chlorate; (16) dyestuff 1,11,4,411-trianthrimide carbazole and sodium chlorate; (17) as in (16)-used in a printing paste; and (18) dyestuff [I] and sodium chlorate-used in a printing paste.  The invention is of particular value in dyeing with vat dyes which are sensitive to temperature changes when dyeing at high temperatures, e.g. anthraquinone dihydroazines, dinitro-dibenzanthrone, oxynitro-dibenzanthrone, 1,4-dibenzoylamino-anthraquinone, 4,41-dihydroxy-indanthrene, 2-(1 - aminoanthraquinonyl - 2) - 4,5 - beta - anthraquinone - oxazole, didibenzanthronylamino - di - alpha - anthraquinonylamino pyranthrone, 3,4,8,9 - dibenzpyrene - 5,10 - quinone and 1,11,4,111-trianthrimide carbazole. p
Patent GB-781922-A (GB)
Title: De-icing and anti-icing apparatus
Inventor: CRICK ROGER DUDLEY SALWAY
IPC: B64D15/16
Filed: 1954-08-17
Abstract: 781,922. Electric resistance heating for de-icing. NAPIER & SON, Ltd., D. Aug. 17, 1955 [Aug. 17, 1954], No. 23967/54. Class 39(3) [Also in Group XXXIII] An article, e.g. an aircraft wing or engine, on which air may impinge under icing conditions has an electrical heating layer extending along the extreme leading edge, i.e. the upstream stagnation zone, and a layer of P.T.F.E'. applied to its surface downstream thereof. The P.T.F.E. may also extend over the leading edge. The heating layer may be a metallic conducting strip between two insulating strips as in Specification 703,374. Electrical heating strips may extend downstream from the leading edge heater, and heating layers may be provided between those strips underlying the P.T.F.E. layer. The leading edge strip may be divided into sections between consecutive downstream extending strips and each section supplied with current in turn, in which case the adjacent downstream extending strips and associated heating layer are supplied with current at the same time as the section. The P.T.F.E. may be applied as in Specification 733,615 [Group VIII] to the article or to a metal backing bonded to the article. Alternatively, brass may be sprayed on to a layer of P.T.F'.E., the brass then being bonded to the article. Specification 662,540 also is referred to.
Patent GB-1011521-A (GB)
Title: Improvements in or relating to mounting means
Inventor: EDWARDS DOUGLAS AUSTIN
IPC: F16D3/84
Filed: 1961-07-04
Abstract: 1,011,521. Bearings; machinery guards. BIRFIELD ENGINEERING Ltd. Feb. 22, 1962 [July 4, 1961], No. 24048/61. Headings F2A and F2J. Means for mounting a tube 2 on a shaft 13 comprises a circumferentially-split outer bearing race 8, 9 mounted in a housing 3 of the tube 2, the split portions 8, 9 being movable apart axially of the bearing against a crimped spring ring 16 urging them to their normal position which defines an outer track 17 for balls 18 mounted in a cage 19. The tube 2 may be a transmission shaft guard which may be designed for use with the inner bearing race 23 on a yoke member of a universal joint 12 of the shaft 13. The tube 2 can be mounted on the shaft 13 by relative axial movement thereof in one direction and is not removed by an axial force producing opposite relative movement. The leading portion 9 when fitting the race 8, 9 on the shaft 13 is urged against an abutment 10 by the spring ring 16 which allows the portion 8 to be moved against it. To move the portions 8, 9 apart manually so as to remove the guard 2 from the shaft 13 there is a projection 26 on the portion 8, or a member attached to the latter, projecting through an aperture 27 in the housing 3.
Patent GB-864289-A (GB)
Title: Purification of alkaryl sulfonic acids
Inventor: SIAS ROY C
IPC: C07C309/31
Filed: 1959-07-13
Abstract: Oil-soluble alkaryl sulphonic acids are freed from sulphur oxides and their hydrates by adding thereto (a) an inorganic base with an ionisation constant Kb greater than 1 X 10-14, a solubility at 25 DEG C. of less than 1 part in 100 parts of water and which reacts with sulphuric acid to form a water-insoluble salt, in an amount varying from 1 to 2 times the stoichiometric quantity required for reaction with the sulphur trioxide and its hydrate contained in the sulphonic acid and by a nitrogen-containing organic compound, which upon reaction with sulphur dioxide or its hydrate forms a precipitate, and which has the formula:  <FORM:0864289/IV (b)/1> wherein X is a hydrogen atom or an alkyl or phenyl radical and Y is an alkyl, cycloalkyl, phenyl, alkyl- or amino- or alkylaminocarbonyl, or benzoyl radical, the carbonyl radical being linked by the carbon atom of the carbonyl radical to nitrogen, or wherein X and Y may be joined together to form a cyclic structure in which case the hydrogen atom may be eliminated, in an amount varying from 1 to 2 times the stoichiometric quantity required for reaction with the sulphur dioxide and its hydrate contained in the sulphonic acid and finally recovering the purified alkaryl sulphonic acid.  The treatments detailed under (a) and (b) above may be carried out separately and in isolation if desired, according to the impurities in the sulphonic acid.  Specified inorganic bases are calcium oxide, hydroxide and carbonate and barium and strontium carbonates.  Specified organic nitrogen compounds are methyl-, ethyl-, propyl-, butyl-, cyclohexyl-, dimethyl-, diethyl-, dipropyl, n-methyl-cyclohexyl- and diphenylamines,, toluidines, xylidines, aniline, n-methyl-aniline, n-ethyl-xylidine, tetrahydropyrrole, pyridine, piperidine, quinoline, n-methyl-acetamide, propionamide, benzamide, acetanilide, urea, methylurea and dimethylurea.  In examples the above processes are described in the treatment of postdodecylbenzene sulphonic acid and compared with those using other compounds.
Patent GB-1477391-A (GB)
Title: Catalytic process for polyhydric alcohols and derivatives
IPC: C07C27/00
Filed: 1974-05-31
Abstract: 1477391 Polyhydric alcohols UNION CARBIDE CORP 31 May 1974 [19 June 1973 18 April 1974] 24138/74 Heading C2C Polyhydric alcohols and their ether and ester derivatives are made by reacting, optionally in the presence of a diluent, oxides of carbon and hydrogen in the presence of a rhodium carbonyl complex provided to the reaction as a rhodium carbonyl cluster which possesses an infra-red spectrum which exhibits three intense wavelength bands of 186810 cm.<SP>-1</SP>, 183810 cm.<SP>-1</SP> and 178510 cm.<SP>-1</SP> at a pressure of at least 500 1b. in.<SP>-2</SP> abs. When the diluent is an acid or an alcohol, the corresponding esters and ethers are obtained. Specification 1,477,392 is referred to.
Patent GB-1381225-A (GB)
Title: Use of sublimable disperse dyes in photoelectrophoretic image reproduction
IPC: G03G17/04
Filed: 1973-05-21
Abstract: 1381225 Photoelectro-phoretic printing  CIBA-GEIGY AG 21 May 1973 [23 May 1972] 24197/73 Heading G2H A photoelectro-phoretic image is formed by the selective migration, on imagewise illumination, of particles of a photo-conductive disperse dyestuff, which sublimes at 160C to 220 C, suspended in a non-conductive liquid carrier between two electrodes, or one of which is transparent to the illuminating radiation. The image so formed may be transferred to a copy sheet by application of heat. Alternatively the image may be fixed on the electrode on which it is formed, e.g. by application of a coating or by a binder. Three dyestuffs may be used together to form a coloured image. Examples and formulae of dyestuffs are given.