baber/WOPTO huggingface dataset:
Patent GB-368513-A (GB)
Title: Improved decarbonising means for use with internal combustion engines
IPC: F02M25/00
Filed: 1931-02-27
Abstract: 368,513. Cylinders. BULL, E. B., Treetops, Kewferry Road, Northwood, Middlesex. Feb. 27, 1931, No. 6247. [Class 7 (ii).] In a decarbonizing device air is drawn into the induction pipe through a container 10 containing a renewable cartridge 26 comprising an absorbent material saturated with a decarbonizing substance-e.g. ammonium carbonate, or hydrogen peroxide. The cartridge is formed of lead foil which is torn open by pulling a strip 30, 31, a seal 29 and a cork 28 being thus released. The container 10, which is preferably made of the substance known by the Trade Mark "Bakelite," has a detachable cap 11 with a small air entry hole 18 and a fixing stud 14.
Patent GB-672140-A (GB)
Title: Improvements in and relating to electric generators
Inventor: TERRY ROBERT SAINT GEORGE
IPC: H02K21/18
Filed: 1949-03-08
Abstract: 672,140. Machines with permanent magnets. TELEPHONE MANUFACTURING CO., Ltd. Feb. 22, 1950 [March 8, 1949], No. 6276/49. Class 35. A generator with a rotary permanent magnet, particularly a hand-operated generator for telephone purposes, has a non-uniform air gap between its curved pole-pieces and the stator pole-pieces. As shown, the centres of curvature of the stator pole-pieces are different from one another and from that of the rotor. Specification 672,202, [Group XXXVII], is referred to.
Patent GB-434421-A (GB)
Title: Apparatus for producing sounds of a musical character
IPC: G10H3/16
Filed: 1934-02-27
Abstract: 434,421. Electrical musical instruments. COMPTON ORGAN CO., Ltd., J., and MIDGLEY, A. H., Chase Road, Willesden, London. Feb. 27, 1934, No. 6303. [Class 88 (ii)] In apparatus for producing musical sounds, electrical oscillations are generated electrostatically between a frame or shallot and a vibrating tongue or the like oscillated by wind pressure, and are converted into sound waves by a loud -speaker or the like, the mechanical properties of the vibrator and its frame or shallot being adapted to provide sounds of prearranged pitch and timbre. In the Figure, different voltages are applied by the high tension battery d to the frames b. The reeds a may be vibrated in the usual way by wind pressure controlled from a keyboard; or they may be continuously vibrated by the wind pressure, electric switch-contacts being closed by keys in the circuits of the individual reeds. The reeds may be enclosed in a soundproof case, and may also be struck by small hammers.
Patent GB-194317-A (GB)
Title: Induced draught device
IPC: F23L17/00
Filed: 1923-03-05
Abstract: 194,317. Hass, H. March 4, 1922, [Convention date]. Casings.-A screw fan 1, for inducing draught in a chimney 12, operates at the lower end of a tubular member 5 which carries guides 9, set in a direction opposite to that of the rotation of the fan to ensure that the gases leave the fan in a direction parallel to the axis of the chimney.
Patent GB-1079133-A (GB)
Title: Improvements in or relating to sewing machines and methods
IPC: D05B81/00
Filed: 1965-02-15
Abstract: 1,079,133. Sewing machines. NECCHI S.p.A. Feb. 15, 1965 [Feb. 13, 1964], No. 6435/65. Heading D1G. A sewing machine in which the needle bar is movable between two lateral positions is so arranged that in one lateral positon stitches are formed and in the other lateral position stitches are dropped. For making tacking stitches the machine is operated in a repeated cycle comprising a plurality of reciprocations of the needle bar in the second lateral position followed by a single reciprocation in the first position. As shown, a rotary hook 4 has a loop-seizing beak 2, and the eye 3 of the needle 1 is positioned at a greater distance than normal from the axis of the rotary book whereby in the right hand lateral position of the needle bar, as shown, the beak passes above the needle eye to form stitches, while in the left hand lateral position of the needle bar, Fig. 6, the beak passes below the needle eye and stitches are dropped. A special needle may be used with the eye positioned further than normal from the print, or a normal needle may be fixable in two alternative positions of axial adjustment. Alternatively, the normal phase relationship may be altered either between the needle bar and its driving shaft, or between the rotary hook and its driving shaft. The needle bar may be moved to its alternative lateral positions either by hand or automatically under cam control.
Patent GB-592933-A (GB)
Title: New pyrimidine compounds
Filed: 1943-06-11
Abstract: 4-Hydroxypyrimidines bearing in the 6-position a hydrocarbon radical and in the 2-position an arylamino group optionally substituted by non-acidic substituents, such as halogen atoms, nitro, cyano or esterified carboxyl groups or hydrocarbon radicals (which themselves may bear substituents and which may be attached to the arylamino group directly or through an oxygen, nitrogen or sulphur atom or a sulphonyl or carbonyl group), are manufactured by reacting an appropriate arylamine with a 4-hydroxypyrimidine bearing in the 6-position a hydrocarbon radical and in the 2-position an alkyl- or substituted alkyl-mercapto group.  The reaction may be effected in the presence of a solvent or diluent, e.g. b -ethoxyethanol.  In the examples, the manufacture of the following from the corresponding 2-methylmercaptopyrimidines is described: 2-(21-, -31- and -41-chloro-, -21-and -41-methoxy-, - 41-ethoxy-, -bromo-, -butyl-, -carbomethoxy-, -phenyl-, -cyano-, -dimethylamino-, -methylmercapto- and -nitro, -21-, -31- and -41-methyl-21.41-, -31.41- and -21.51-dichloro-, -31.51-dibromo-, -31.41- and -31.51-dimethyl-, -21-methyl -41 - chloro- and -41 - methyl - 31 - chloro - anilano) - 4 - hydroxy - 6 - methylpyrimidines, 2 - anilino-, -a - and -b -naphthylamino-, -(41-chloro-11-, -61-bromo-21- and -61-methoxy-21-naphthylamino) - 4 - hydroxy - 6 - methylpyrimidines and 2 - (41 - chloroanilino) - 4 - hydroxy - 6 - phenyl - pyrimidine. 2 - Bromoaniline, 2 - methylmer - capto - 4 - hydroxy - 6 - ethylpyrimidine and 2 - ethylmercapto and 2 - benzylmercapto - 4 - hydroxy - 6 - methylpyrimidines are specified as suitable starting materials p  additionally to those used in the examples. Specification 592,928 is referred to.  Samples have been furnished under Sect. 2 (5) of 2 - (41 - chloroanilino) - 4 - hydroxy - 6 - methyl - pyrimidine made from the corresponding 2-ethylmercapto- and 2-benzylmercaptopyrimidines.  The pyrimidines used as starting materials may be made by (a) the reaction of appropriate alkyl isothioureas with formylacetic esters substituted by hydrocarbon radicals on the b -carbon atom or (b) S-alkylation of 6-substituted - 2 - mercapto - 4 - hydroxypyrimidines, obtainable from thiourea and formylacetic esters substituted by hydrocarbon radicals on the b -carbon atom.
Patent GB-270650-A (GB)
IPC: C08K5/103
Filed: 1927-03-09
Abstract: 270,650. Canadian Electro Products Co., Ltd., (Assignees of Matheson, H. W.). May 4, 1926, [Convention date]. Plastic compositions containing cellulose nitrate.-Nitro-cellulose solutions and plastics are made with an ester of mandelic acid as plastifier, with or without other plastifiers. Pigments, dyes and resins may be added. The solvents mentioned are alcohol, butyl acetate, amyl acetate, ethyl acetate and ethyl lactate, and the plastifiers which may be used in addition are camphor and di-butyl phthalate. Diluents may also be employed. In an example 100 parts of pyroxyline is mixed with 40 parts of ethyl mandelate and 60 parts of alcohol with heating to obtain a plastic which is rolled, pressed into blocks and cut into sheets which, after seasoning, are polished between heated plates. Instead of ethyl mandelate the other aliphatic or aromatic esters of mandelic acid may be employed.
Patent GB-882014-A (GB)
Title: Improvements relating to colour television receivers
Inventor: GARGINI ERIC JOHN
IPC: H04N11/14
Filed: 1957-02-27
Abstract: 882,014. Gain control. ELECTRIC & MUSICAL INDUSTRIES Ltd. Feb. 20, 1958 [Feb. 27, 1957], No. 6576/57. Class 40(5). [Also in Group XL(b)] An amplifier for amplifying the brightness signal in a colour television receiver (see Group XL(b)) with a gain varied in accordance with a control signal derived from an accompanying colour signal comprises two pentodes 19, 20, the brightness signal EY<SP>1</SP> being applied to the cathode of pentode 19 and the control signal being applied in opposite phase to the two suppressor grids whereby it is effective to vary the amplifier gain but contributes nothing to the output. The amplifier may be non-linear. Specifications 863,604, 864,452, 871,367 and 880,517 are referred to.
Patent GB-1370242-A (GB)
Title: Colour television system
IPC: H04N9/07
Filed: 1972-02-11
Abstract: 1370242 Colour television MAGNAVOX CO 11 Feb 1972 [8 March 1971] 6591/72 Heading H4F A colour television camera such as described in Specification 1,322,041, in which two colour filter gratings are used to modulate the light falling on to the camera tube face, the grating lines of the two filters being arranged in different directions transverse to the scan direction so as to produce a different phase relationship between the modulated components of the tube output in successive lines of scan, utilizes a spatial frequency filter in the optical path from the subject to the filter gratings to minimize the effect of sharp transistors and of repetitive patterns in the subject corresponding to the grating spacings.
Patent GB-613536-A (GB)
Title: Panelling, particularly for bathrooms, kitchens and the like
IPC: E04F13/12
Filed: 1946-03-04
Abstract: 613,536. Wall coverings; joining metal sheets. CATON, H. F. P., and PRITTY, G. N. March 4, 1946, No. 6609. [Clases 20(ii) and 20(iv)] Wall covering comprises rectangular metal sheets such as 11 and 12 each having a set-back edge 13 which is secured to the wall and is adapted for hooked engagement with the opposite edge 14 of an adjacent sheet. The sheets have intersecting grooves such as 19 to simulate a tiled surface and a moulding along the upper edge which can be secured to the wall or to the sheets by hooked engagement when erected as shown in Fig. 3. In a modification the moulding is formed integral with the sheets. A moulding or skirting may similarly be provided at the lower edge of the sheets. Specification 585,081 is referred to.
Patent GB-365851-A (GB)
Title: A press for drawing sheet metal
IPC: B21D22/06
Filed: 1931-03-04
Abstract: 365,851. Stamping motor car mudguards, window frames, &c. FUERY, G. T., 8, Newhall Street, Birmingham.- (Schuler Akt.-Ges., L. ; G÷ppingen, Wurtemberg, Germany.) March 4, 1931, No. 6660. [Classes 83 (ii) and 83 (iv).] In a sheet metal press, e.g. for stamping motor car mudguards, window frames, &c. the descent of the die d of a cupping press by its crank shaft is accompanied by descent of an inwardly flanged holding-down ring f surrounding the ram, the two being resiliently coupled together by pistons and rods i on the ram working in cylinders g on the ring f and the underside of the pistons h being supplied with compressed air from a reservoir through ports k. The tops of the pistons are open to atmosphere through ports q. The first part of the ascent of the ram strips it from the work while the work is held down by the compressed air supply between the pistons h and the ring surface. Further ascent of the ram causes it to meet the flange f<1> of the ring and carry it upwards with itself. The ram and/or the ring f is provided with guides p in the frame n but the ring is a loose fit over the die d to allow tilting, the universal joints at the ends of the piston-rods i also allowing this. In another form the cylinders g are mounted on the frame and their pistons are supplied with compressed air on the top.
Patent GB-1013991-A (GB)
Title: Separation of fluorinated compounds
IPC: C07C17/386
Filed: 1963-02-19
Abstract: Fluoroform-tetrafluorethylene mixtures are separated by fractionally distilling the mixture in the presence of a perhalocarbon in which the halogen atoms are fluorine and/or chlorine and which has an atmospheric boiling point of from -40 DEG  to + 100 DEG  C., the weight ratio of perhalocarbon to fluoroform-tetrafluoroethylene mixture being at least 40 : 60. The process is particularly applicable to the separation of mixtures of compounds obtained by the pyrolysis of fluoroform. The perhalocarbons used in the separation may be saturated or unsaturated and cyclic or non-cyclic.  Suitable extractants are, for example, hexafluoropropene, perfluorobutenes, perfluorocyclobutane, perfluoropropane, perfluorobutane, perfluoropentane, CF3CCl3, CF2ClCFCl2, CF3CFCl2, CF2ClCF2Cl, CF3CF2Cl, CF2ClCCl3, CFCl2CFCl2, CCl2Fl2 CCl3F and CCl4 with hexafluoropropene preferred. In the distillation a mixture of tetrafluoroethylene and extrantant is withdrawn from the bottom of the column and substantially pure fluoroform is withdrawn from the top.  The tetrafluoroethylene may be separated from the extrantant by distillation and the extractant returned to the process.  If the starting mixture is one obtained by the pyrolysis of fluoroform there may be present hexafluoropropene, hexafluoroethane and smaller amounts of other fluoro compounds and it is desirable that hexafluoropropene should be used as the extractant for such a mixture.  The hexafluoroethane is then taken off at the head of the column with the fluoroform and the mixture so taken off can then be recycled to the pyrolysis reactor. Specification 918,971 is referred to.
Patent GB-809161-A (GB)
Title: Improvements in or relating to extrusion guns particularly for sealing compounds andthe like
IPC: B05C17/015
Filed: 1956-03-05
Abstract: 809,161. Piston extrusion apparatus. EVOMASTICS Ltd., and BRIANT, J. H. Feb. 21, 1957 [March 5, 1956], No. 6809/56. Class 102(2). A cartridge container for a sealing compound comprises a cylindrical body 13 closed at one end by a piston 14 and having at the other end a closure 15 having a projecting outlet 16 to which a detachable nozzle 17 may be secured. The cartridge is a slidable fit in a body 1 of an extrusion gun having a detachable ring 5 at one end and at the other an inlet 8 for pressure gas for driving the piston 14. A cone shaped member 7 provides a fluid tight seating for the cartridge 13.
Patent GB-213252-A (GB)
Title: Improvements in the process for the manufacture and regeneration of charcoal of high decolourising power
IPC: C01B31/12
Filed: 1924-03-17
Abstract: 213,252. Perten, J. March 19, 1923, [Convention date]. Carbon.-A decolourizing carbon, particularly suitable for decolorizing red wines. is prepared by carbonizing organic substances, such as wood waste, charcoal, peat, cellulose, grains, (brewers' grains, distillers' grains), animal waste, and spent charcoal, which have been previously impregnated with a strong solution of zinc chloride and a substantially equal volume of a strong solution of calcium chloride, the latter being wholly or partly replaced, if desired, 'by equivalent amounts of the chlorides of the alkali, alkaline earth, or earth metals, such as potassium, strontium, magnesium, or manganese. In an example, peat, sawdust, &c. is impregnated with equal volumes of strong solutions of zinc and potassium chlorides, dried, and carbonized. The product is washed with water, acid, and again with water, and then dried and ground. Specification 10126/14 is referred to.
Patent GB-1458794-A (GB)
Title: Eddy current test coil assembly
IPC: G01N27/90
Filed: 1975-02-18
Abstract: 1458794 Eddy current flaw detectors  INSTITUT DR FRIEDRICH FORSTER PRUFGERATEBAU KG 18 Feb 1975 [29 May 1974] 6865/75 Heading G1N An eddy current test coil assembly for detecting flaws in articles includes single or two turn printed circuit exciter and receiver windings. In Fig. 1 for testing a finned tube 1, the latter is passed through aperture 2 in a printed circuit board 3 printed on both sides with registering conductor patterns 4, 5, 6. A.C. is applied to the primary winding of a pot transformer 13 arranged in apertures 8, 11 of board 3, the secondary windings of which on both sides of board 3 are in the form of printed conductors 20 coupled by conductors 19 to exciter loops 18 arranged around aperture 2. Balanced receiver windings 5 having two turns on each side of the board are differentially connected by means of plated through hole 21 and connected via leads 27, 28 to the printed circuit primary loops 24 of an output pot transformer 14, the secondary of which is connected to the measuring apparatus. When the exciter loops 18 are energized a magnetic field is generated along the tube 1 axis to create eddy currents therein, any changes therein due to flaws being detected by the induced voltages of opposing polarity in the receiver windings 5 appearing at different times. If the windings 5 require balancing this is achieved by approaching a short circuit ring to one of the windings. The side of a bar can be examined for transverse flaws using the arrangement of Figs. 4, 5 (not shown) in which single turn printed circuit exciter and receiver windings are employed having their axes at right angles so that normally no voltage is induced in the receiver winding whereas a flaw causes a voltage. Coil assemblies matched to irregular surfaces are formed by sticking the printed circuits on opposite faces of a thin sheet corresponding to the test surface. A plurality of receiver windings may be used Figs. 6, 7 (not shown) in which a rectangular exciter winding and associated transformer are mounted on one printed circuit board together with a plurality of single turn receiver windings with their axes perpendicular to the exciter winding. A further printed circuit board mounted at right angles to the first board in a slot therein carries the receiver windings transformers. The receiver windings may be successively scanned. In the arrangement of Figs. 8, 9 the article to be tested passes through protective sleeve 111 around which passes part of hand 112 (shown in flat form in Fig. 9) having conductors on only one side which when the strip end 121 is fastened to 122 provides three continuous conductors. Section A in the form of loop 134 is fixed to tube 111 and carries in effect to outer exciter windings and two inner differentialy connected receiver windings. Section B of the inner conductive section separated along cuts 118, 119 is pulled downwards and forms the primary winding 123 of output transformer 130. The outer loops of B form the secondary winding of the input pot transformer (not shown).
Patent GB-363562-A (GB)
Title: Improvements in apparatus for preventing damage due to back-fires and for preventingthe theft of motor cars
IPC: F02M1/00
Filed: 1931-03-06
Abstract: 363,562. Preventing unauthorized use of engines, and damage from backfiring- DORES, G., 44, Rue du Chateau-des- Rentiers, Paris, and GIRARD, L., 86, Rue Perrier, Montrouge, Seine, both in France. March 6, 1931, No. 7046. Convention date, March 8, 1930. Addition to 363,461. [Class 7 (ii).] In a device for preventing damage to a carburetter from backfiring as described in the parent Specification, in which a tubular member has an open end facing away from the carburetter and entering an enlarged part of a mixing- chamber to allow ignited gases to escape into the atmosphere, an axially moving piston carries or actuates a valve which isolates the carburetter when backfiring occurs. As shown in Fig. 1, the ignited gases escape down the member 86 to the atmosphere past a valve 100, and the pressure of the gases acting on the piston 85 is transmitted through links 83, 84 to valves 81, 82, which close upon the pipe leading from the carburetter. In a modified construction, Fig. 7, when a backfire occurs, a spring-pressed sleeve valve 115 is forced downwards so that its mouth 115a enters the member 86 and isolates the carburetter. In a further modification, Fig. 4, the piston 89 and valve 94 are formed integrally, and the movement of the valve may be controlled by a finger connected to the throttle valve. This construction may also be used to prevent theft of a vehicle. The piston 89 houses a spring- pressed cup 96 which, when the piston is in its normal operating position, abuts against the flattened part 102 of a rod 103 which passes through slots 95 in the piston. The rod is moved transversely by an operating cable 109 when the valve is seated on the pipe leading from the carburetter to allow the cup 96 to abut against a part 104 of the rod 103 and thus lock the valve in its closed position. If the cable 109 breaks, a spring-pressed washer 105 moves in the direction of the arrow 110 to force the rod 103 to lock the valve in its closed position.
Patent GB-578455-A (GB)
Title: Improved construction of spray gun for gas blast spraying heat-fusible materials
IPC: B05B7/20
Filed: 1944-04-17
Abstract: 578,455. Spraying fusible materials. METALLIZING ENGINEERING CO., Inc. April 17, 1944, No. 7050. Convention date, Oct. 25, 1943. [Class 69 (iii)] A metal spraying gun uses low pressure burning gas and high pressure oxygen, air &c., to support combustion or vice versa to increase output without the danger of backfiring and burning out the nozzle. High pressure oxygen &c., from the duct 21 passes from a manifold 13 through one or more bores 15 while low pressure burning gas passes into the manifold 14. An annular groove 16 allows limited mixing so that the high pressure air &c. passing through the bores 15 projects the mixture into the aligned bores 17 and through aligned jets 3 into the nozzle 24 to melt the metal rod 1 or the metal powder and project it where required. The bores 15 may be flared at their entrance and may widen towards their. exits. The bores 17 may taper towards their exits and may also be curved. When using high pressure burning gas, it is fed from duct 19 to manifold 13, the corresponding low pressure oxygen &c. being supplied from duct 20 to the manifold 14 In Fig. 6 an annular groove 30 connects the outlets of all the bores 17<1> so that, if one jet backfires, all backfire and the operator becomes aware of it. The inlet ends of the bores 3 may be 50 per cent larger than the exits of the bores 17 to allow for misalignment in assembling.
Patent GB-558286-A (GB)
Title: Halogeno-ketones
IPC: C07C49/16
Filed: 1942-05-26
Abstract: 558,286. Halogen pentanones. BOON, W. R., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. May 26, 1942, No. 7102. [Class 2 (iii)] 5-Halogen-pentanones-2 are produced by reacting 1-aceto-butyrolactone with hydrochloric, hydrobromic, or hydriodic acid. Examples are given.
Patent GB-295956-A (GB)
Title: Improvements in or relating to hard tennis courts
IPC: C04B20/10
Filed: 1927-03-15
Abstract: 295,956. Edge, A. March 15, 1927. Paints for colouring stone chippings for tennis courts are prepared by adding half a gallon of white spirit or turpentine substitute to each pound of a paste composed of linseed oil 144 parts by weight, dry colour preferably green 112 parts, and a corresponding aniline dye 1 part. Red pigment and red dye may be used.
Patent GB-508406-A (GB)
Title: Improvements relating to fuel injection pumps for internal combustion engines
IPC: F02M59/46
Filed: 1938-03-08
Abstract: 508,406. Fuel-injection pumps. GREENWOOD, J. H., BLACOW, A., and BURNLEY, COLNE, & NELSON JOINT TRANSPORT COMMITTEE. March 8, 1938, No. 7169. [Class 102 (i)] In a fuel-injection pump, the delivery valve 15 is loaded by a spring 16 and seats on a cylindrical member 9 which seats at 8 on the member 1. A duct 13 communicates with ducts 12 2 opening into the surface of the member 9 above the seat 8. On the delivery stroke, the member 9 moves to engage the stop 11 before the valve 15 opens, and downward movement of this member, when the spill ports are opened, relieves pressure in the delivery pipe and prevents dribble. The stop 11 may be resilient and the valve 15 may be other than a ball valve.