baber/WOPTO huggingface dataset:
Patent GB-1587302-A (GB)
Title: Process for dyeing synthetic fibrous materials
IPC: D06P1/52
Filed: 1978-02-24
Abstract: Continuous lengths of textiles made of polyester fibres which are dyeable without carriers, and blends of said polyester fibres with natural fibres, are exhaust-dyed at the boil on the beam with aqueous liquors. The liquors contain not only water-insoluble disperse dyes and pH-regulating substances but also, as a dispersing system having a levelling effect, water-soluble linear polyesters which are obtainable by polycondensation of dicarboxylic acids and optionally hydroxycarboxylic acids with diols with the inclusion of sulpho- or sulphonato-containing chain members and in which not more than 40% of the chain members are hydroxycarboxylic acid units, together with surface-active ethoxylation products.
Patent GB-446219-A (GB)
Title: Means for cleaning windows
IPC: B60S1/02
Filed: 1935-03-11
Abstract: 446,219. Window-cleaning appliances. BOWLING, J. D., 647, London Road, Westcliffon-Sea. March 11, 1935, No. 7497. [Class 138 (i)] A roller blind 1 is provided with a hem or border 4 which mav enclose the usual rod 5 and in which is secured a strip of cleaning material 2 such as felt so that the operator can grasp the hem and clean the window 3 with the felt. The strip normally lies flat against the blind as shown in Fig. 2, but for cleaning purposes it is turned away as in Fig. 3. A filler or stiffening strip 8 is provided in this form of the invention. In a modification shown in Fig. 4, the felt 6 is secured between the edges of a doubled over metal plate 7 which is then secured in the hem. In this case the felt projects at right angles to the blind.
Patent GB-558853-A (GB)
Title: Improvements in boxes for tools and similar implements
IPC: B25H3/02
Filed: 1942-06-02
Abstract: 558,853. Tool boxes &c. LARSSON, E. June 2, 1942, No. 7506. Convention date, July 2, 1941. [Class 18] A portable box 1 for tools &c. houses at its top two trays 4, 4' pivotally carried on two pairs of links 2, 2<SP>1</SP> 3, 3<SP>1</SP> pivoted to the container 1, the links 3, 3<SP>1</SP> carrying by means of links 9, 9<SP>1</SP>, two lids 7, 7<SP>1</SP> pivoted at 10 to the trays, so that when handle-bars 6, 6' are separated the lids 7, 7' and trays 4, 4<SP>1</SP> are carried to the position shown in dot-and-dash lines, so that access is given to the contents of the container.
Patent GB-522096-A (GB)
Title: Improvements in the pressure extraction of coals
IPC: C10G1/08
Filed: 1938-03-10
Abstract: 522,096. Pressure-extraction of coals. JOHNSON, G. W. (I. G. Farbenindustrie Akt.-Ges.) March 10, 1938, No. 7515. [Class 91] In extracting oils from coals by solvents under pressure, and optionally in presence of catalysts and/or hydrogen or hydrocarbons yielding hydrogen, the solvent consists of an oil fraction boiling between 160 and 360‹C. and containing not more than 10 gms. of hydrogen per 100 gms. of carbon mixed with less than 20 per cent. of an oil of similar B.P. and containing at least 14 gms. of hydrogen per 100 gm. of carbon. Suitable oils rich in hydrogen are those obtained by synthesis from carbon monoxide and hydrogen, or by distillation, extraction, and/or hydrogenation of petroleums or of low-temperature carbonisation tars, or by hydrogenating coal extracts, or by pressure hydrogenation of coals. The extraction temperature may be 5-10‹C. higher than usual. For example, 100 kg. of coal is extracted under pressure at 410‹C. with a mixture of 92 kg. of coal tar distillate, B.P. 220-300‹C. and containing 7.73 gms. of hydrogen per 100 gms. of carbon, with 8 kg. of oil obtained from carbon monoxide and hydrogen and containing 17.54 gms. of hydrogen per 100 gms. of carbon ; the mass is filtered at 160‹C.
Patent GB-1092671-A (GB)
Title: Devices for checking the straightness of bores
Inventor: MITCHELL NEIL
IPC: G01B13/19
Filed: 1965-02-22
Abstract: 1,092,671. Testing bores. JOSEPH LUCAS (INDUSTRIES) Ltd. April 18, 1966 [Feb. 22, 1965], No. 7521/65. Heading G1M. Advice for checking the straightness of a bore 13 comprises an elongated mandrel 10 carrying longitudinally spaced fixed abutments 11, 12 and at a point intermediate these abutments, a further abutment 14 which can be moved radially with respect to the bore 13, such radial movement being limited by contact of the further abutment 14 with the wall of the bore, fluid being supplied in use through the interior 17 of the mandrel so as to escape through channel 18 around the abutment, the rate of escape being dependent on the magnitude of radial movement and indicator means being provided for indicating the rate of escape of fluid. The abutment 14 has two fixed annular member 15, 16 on opposite sides to prevent longitudinal movement of abutment along the mandrel.
Patent GB-993248-A (GB)
Title: Improvements in and relating to fluid dampers
Inventor: WILKINS DAVID LEONARD WALTER
IPC: F16F9/52
Filed: 1962-02-27
Abstract: 993,248. Hydraulic dampers. G. O. PETERS & CO. Ltd. Jan. 23, 1963 [Feb. 27, 1962], No. 7625/62. Heading F2S. In an hydraulic damper comprising a valved piston 1 in a cylinder 2 and in which differential volume is accounted for by a spring-loaded end wall 5, 6, changes in the viscosity of the hydraulic fluid, due to variations in temperature, are compensated for by forming the piston 1 and the cylinder 2, respectively, of materials such as aluminium and nickel-iron alloys which materials respectively have relatively high and low coefficients of thermal expansion so that the piston-cylinder clearance, forming the constriction, decreases as the temperature is increased.
Patent GB-908502-A (GB)
Title: Veterinary appliances
Inventor: MADDEN DONALD HILARY LINCOLN
IPC: A61B19/04
Filed: 1960-03-03
Abstract: A protective arm sheath for use in rectal palpation of cows comprises a seamless tube closed at one end and large enough to accommodate the hand, with the fingers and thumb at full stretch, and the forearm. The tube is made of polythene 0.001-0.0012 inches thick, and is closed at one end by a welded seam at an angle of 45 degrees to the tube axis.
Patent GB-211727-A (GB)
Title: A combined rug and foot-muff
IPC: A47G9/08
Filed: 1923-03-16
Abstract: 211,727. Hoffman, R. March 16, 1923. Rugs and muffs. - A travelling rug a has a foot muff formed as one or a pair of bags b attached to its lower edge and a hand muff g formed by slitting the upper material at f and adding another thickness of material between the slits. The feet can be inserted into the foot muff from either side. When not in use, the rug can be folded along the sides, rolled up, and inserted into the bag b and carried by the handles i.
Patent GB-558621-A (GB)
Title: Improvements in electric regulators of the carbon pile type
IPC: G05B11/01
Filed: 1942-06-08
Abstract: 558,621. Automatic regulators; electromagnets. STONE & CO., Ltd., J., CHILTON, A. H., and NIXON, L. R. June 8, 1942, No. 7797. [Classes 35 and 38 (iv)] A carbon pile regulator has an operating magnet d with a control pole and two side poles and a U-form armature c hingedly and frictionlessly supported by blade spring devices so that two chopper-like blades enter the air gaps. By contacting the edges of the blades or, in conjunction with a wedge formation of the gaps, contacting the faces of the blades, the tractive characteristic of the magnet is matched with the varying pressure of the spring which comprises the pile a. The armature mounting comprises crossed blade springs j, k two sets of such being arranged widely apart. The compression springs bare attached to an extension f<SP>2</SP> of a plate f and the latter is attached to a ring p compressing the pile by flexible steel straps q. The pressure ring is guided for rectilinear motion by a stiff strip or bar t connected at the ends with flexible diaphragms or bow springs u, u. Various arrangements of the U-shaped armature as described. It may be secured astride the clapper plate with the blades parallel or transverse to the pivotal axis of the former. If secured beneath the clapper plate its yoke portion may co-operate in the adaptation of the tractive characteristic of the magnet. Specification 558,622 is referred to.
Patent GB-1420331-A (GB)
Title: Fluoran compounds and their use in pressure-sensitive copying  paper
IPC: C09B11/24
Filed: 1972-02-21
Abstract: 1420331 Fluoran compounds for use in pressure-sensitive copying paper WIGGINS TEAPE Ltd 9 Feb 1973 [21 Feb 1972] 7850/72 Heading C4P [Also in Division D2] Novel compounds of the formula wherein R<SP>1</SP> and R<SP>2</SP> each independently is H or an optionally substituted alkyl, aralkyl or aryl radical or forms part of a heterocyclic ring containing the attached nitrogen atom; R<SP>3</SP> is H, halogen, NO 2 , or optionally substituted alkyl, aralkyl, aryl or amino; X is O or -NR<SP>4</SP>- in which R<SP>4</SP> is H or optionally substituted alkyl, aralkyl or aryl; ring D is an optionally substituted 5- or 6-membered saturated heterocyclic ring; and ring B optionally carries one or more further substituents; but when X is O and D is an unsubstituted piperidine ring then R<SP>3</SP> is not H), but excluding the compounds claimed in British Specification 1,336,955, are prepared, when X is O, by reacting together compounds of the formulae (wherein R<SP>5</SP> is H or C 1-5  alkyl) in the presence of a condensing agent. The products are converted to the compounds where X is -NR<SP>4</SP>-by reaction with R<SP>4</SP>NH 2  either at elevated temperature and/or pressure or in the presence of a condensing agent. The novel compounds are colourless colour formers which form coloured substances on contact with electron-accepting substances, and have use in pressure-sensitive recording systems.
Patent GB-485508-A (GB)
Title: Improvements in plastic refractory materials, and processes for producing the same
IPC: C04B28/06
Filed: 1937-03-17
Abstract: A refractory heat-insulating composition comprises a light, porous, exfoliated heat resisting mineral, e.g. vermiculite, and a high alumina hydraulic cement.  Plastic and calcined fire clay may also be included, and powdered charcoal up to 10 per cent may be added to produce voids when the material is heated to a high temperature.  In an example, a composition comprises 50-60 per cent by weight of exfoliated vermiculite, 15-20 per cent of calcined clay, 5-10 per cent of plastic fire clay and 20-30 per cent of high alumina hydraulic cement.  The pulverized materials are mixed dry and then water is added to produce the required plasticity.  On being heated to a high temperature during use the mass vitrifies and gives a smooth dense glazed surface.  The particles of exfoliated vermiculite are preferably of a size between 10 and 30 mesh to the inch.  Other suitable minerals are jefferisite, biotite, and zonolite.
Patent GB-746424-A (GB)
Title: A grinding machine for sharpening the cutter bars of mowers
Inventor: LUEKE KARL
IPC: B24B3/55
Filed: 1954-03-18
Abstract: 746,424. Sharpening mower blades. EISENWERK MILSPE GES. March 18, 1954, No. 7859/54. Class 60 A machine for sharpening a mower blade 25, Fig. 4, comprises a rail 16 against which the blade is held by spring-loaded clamps 23, arms 6, Fig. 1, for effecting an oscillating movement of the rail, the rail being mounted in the arms for tilting movement away from the grinding wheel 5, and a stop 29 for limiting such tilting movement. The grinding wheel 5 is rotated through toothed gearing by a hand crank 3 which also rotates a cam 12 through worm gearing. The cam oscillates the arms 6 through levers 9, 13 secured to a spindle 10 and a pivoted, adjustable link 8, Fig. 2.. The outer ends of the arms are connected by a cross-bar 7 and a shaft 15 to which the rail 16 is pivotally connected by a pair of arms 17. One of this latter pair of arms is provided with the stop 29 which engages the cross-bar 7 to limit the tilting movement of the rail 16 while the other is provided with an adjustable follower pin 33 which co-operates with a cam 35 to modify the movement of the rail 16 when the blade is provided with projections which have to be prevented from contacting the grinding wheel, the cam 35 being swung to an inoperative position when not required. 'The grinding wheel 5 is shaped to treat the V-shaped recesses between the teeth of the blade which is automatically released for manual indexing when the rail 16 is swung away from the grinding wheel so that an arm 30 contacts a screw stop 32 to lift the clamps 23. A pointer (not shown) facilitates correct indexing of the blade which is also secured to the rail 16 by fingers 28 adjustably arranged in forked 'brackets forming part of arms 18 carried by the rail 16. The machine is provided -with an additional grinding wheel 39
Patent GB-630307-A (GB)
Title: Improvements in or relating to electric resistances
IPC: H01C7/108
Filed: 1946-03-13
Abstract: 630,307. Non-metal resistances; temperature variable resistances. PHILIPS LAMPS, Ltd. March 13, 1946, No. 7862. Convention date, March 16, 1945. [Class 37] A sintered resistor consists of mixed crystals of Fe3O4 with a spinel of the type 2R<11>O.R<IV>O2, for example Mg2TiO4,ZnTiO4,Ni2TiO4,Zn2SnO4 ; in the formula R<11> and R<IV> represent respectively divalent and tetravalent elements. In the manufacture of such a resistor, the sintering temperature is 1300‹ C. The sintering process may be carried out in an atmosphere of pure hydrogen without the Fe3O4 formed from Fe2O3 being reduced further to FeO. The content of Fe3O4 is controlled according to the composition of the initial mixture and the conditions in the sintering and cooling processes. Resistors having a low content of Fe3O4 and therefore a high negative temperature coefficient may be produced which are stable at high operating temperatures, i.e. the spinel phase, is uniform and does not separate out into a second phase when the resistor in use develops a temperature of 500‹ C. In resistors of low negative temperature coefficient and therefore a high content of Fe3O4, a second phase may, however, be present; this is introduced by adding an insulating compound such as MgO and ZrO2 which does not dissolve into the spinel phase. In one example the starting mixture comprises Fe2O3-NiO-TiO2; this material is ground with alcohol in a ball-mill for 16 hours and then worked with a solution of 20 per cent methyl metacrylate in methyl-glycol acetate to form a kneadable mass which is pressed into rods of 4 mms. diameter. The rods are sintered at 1300‹ C. for 1 hour in an atmosphere of pure nitrogen and then cooled rapidly in a stream of nitrogen. These resistors are 22,000 ohms per c.m. at 22‹ C. and 50 ohms/c.m. at 332‹ C. In another example a composition of Fe2O3- ZnO-TiO2 is ground with ethyl acetate for 16 hours and then with the use of 10 per cent nitro.cellulose solution in ethyl glycol tubes are extruded 6.3 mms. long and having an external diameter of 8 mms. and an internal diameter of 4.5 mms. The tubes are heated at 1320‹ C. in a continuous furnace of 30 c.m.s. length at a travelling speed of 1 c.m. per minute whilst using a stream of pure nitrogen (oxygen content about 0.1 per cent) flowing at 5 litres per minute. These resistors are 1600 ohms at room temperature and 81. ohms at 110‹ C.
Patent GB-416501-A (GB)
Title: Improvements in or relating to radio receivers
IPC: H03G3/22
Filed: 1933-03-16
Abstract: 416,501. Valve circuits for wireless reception. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, and LINSELL, A. A., 43, West Hill, Sydenham, both in London. March 16, 1933, No. 8008. [Class 40 (v).] The carrier frequency gain of a superheterodyne receiver is automatically controlled by varying the amplitude of the locally supplied oscillations produced by a dynatron valve. As shown, a dynatron oscillator 4 has its control grid bias varied by the fall in potential across a resistance R fed with rectified current from a rectifier 9 supplied from a tuned circuit 8, C coupled to the output circuit 7 of the high frequency amplifier 2. The locally generated oscillations from valve 4 are injected into the grid circuit of the first detector valve 3 which is preferably of the variable-mu type. The output from the rectifier 9 may be smoothed if necessary by the filter 10, 11. Manual volume control may be effected by varying the coupling between the oscillator and detector or by varying the oscillator grid bias. According to the Provisional Specification, the gain of a valve coupling the oscillator with the first detector may be varied.
Patent GB-1499436-A (GB)
Title: Child-proof dispensing container and cover assembly
IPC: B65D83/04
Filed: 1975-02-26
Abstract: 1499436 Child-proof pill dispensing container; boxes INTERNATIONAL TOOLS (1973) Ltd 26 Feb 1975 [7 March 1974] 8017/75 Headings B8T and B8P A child-proof pill-dispensing container includes a cover that requires to be axially depressed against a spring-bias before it can be rotated to align its dispensing opening with a pill. The container comprises inner, outer and intermediate side walls 24, 22, 34 and a central hollow hub 28 whose upper flange 30 is engaged, by virtue of the bias provided by at least one arcuate spring tab 14, by a flange 32 on an inner skirt 26 of the cover 4. The spring tabs 14 project radially inwardly above arcuate slots 58 in the container base. To rotate the cover it is depressed to disengage camming abutments 10, 12 located respectively on a cover outer skirt 18 and the container outer side wall 22. The pills are supported on ribs 40, 42 between the opposed scalloped surfaces of the container side walls 34 22. The cover and container are maintained centred with respect to each other by an annular collar 38 on the underside of the cover. In a modification, Fig. 5 (not shown) provision is made for three tiers of pills.
Patent GB-526325-A (GB)
Title: Synthetic grindstones
IPC: B24D3/12
Filed: 1939-03-13
Abstract: 526,325. Abrasive compositions. BOYLE, R. March 13, 1939, No. 8053. [Class 70] Abrasive stones, particularly for grinding wood to fibres, are formed of granular particles of garnet, flint, corundum &c. of graded sizes bonded by high early strength Portland cement. The abrasive particles may have the edges dulled by tumbling or by treatment with acid. The cement is one which is very finely ground, contains a high proportion of tricalcium silicate and is free from lime. A small proportion of calcium chloride may be added to the mix for making the stones.
Patent GB-948487-A (GB)
Title: Process for the manufacture of linear quinacridone in the gamma crystal phase
IPC: C09B48/00
Filed: 1960-03-07
Abstract: Linear quinacridone in the gamma crystal phase is made by heating an aqueous paste of finely divided crude quinacridone with an inert organic diluent, which is stable and liquid under the reaction conditions but which is not a hydrocarbon or a halo- or nitro-derivative thereof, at a temperature in the range of 100 DEG C. up to the boiling point of the diluent or up to 200 DEG  C. whichever is the lower, at atmospheric pressure to drive off the water and the mixture subsequently maintained at 120-200 DEG  C. for some time. Organic diluents specified are quinoline, pyridine, aniline, N-methyl-pyrrolidone, N-methyl-acetamide, dimethylformamide, propionic acid, butyrolactone, phenol, benzyl alcohol, butane-diol-1 : 4, glycol or its monomethyl or monoethyl ether, diglycol-monoethyl ether and glycerol.  Examples are given. The pigment colours lacquers, plastic masses, printing inks and paints. Specifications 828,052, 940,779 and 940,780 are referred to.
Patent GB-585029-A (GB)
Title: Improvements in valves for internal combustion turbines
IPC: F02C7/22
Filed: 1943-05-20
Abstract: 585,029. Gas turbines. ELDRED, R. J., WALKER, G. W. HIGGS-, and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. May 20, 1943, Nos. 8063 and 20739. [Class 110 (iii)] A control valve, for regulating fuel admission to a continuous combustion gas turbine during starting and running up to idling speed, comprises a piston valve 13 which opens ports G as it moves to the right. The whole delivery of the fuel pump passes through throttling passages B to a central space where a constant pressure is maintained by a relief valve. The pump used is of a type in which the delivery volume varies directly with the pump speed and accordingly the delivery pressure, obtaining in the spaces A, A<1>, varies with the speed. This pressure, applied to a piston 16 is opposed by a spring and moves the piston valve to the right as the speed increases. A single throttling orifice B may be used and when, as shown, other throttling orifices are uncovered as the speed increases, these are of such a size that the delivery pressure, as determined by the pressure-drop through the orifices, still increases with the pump speed. There is only a leakage flow out of the space A<1> and a fine filter is placed in front of that space. The device is also shown combined with a governor as described in Specification 585,032, [Group XXIX], and co-operating with a main fuel control valve as described in Specification 585,028, [Group XXIX]. The throttling orifice may be formed in the body of the piston valve or exterior to the valve casing and the operative pressure may be applied to one end of the piston valve which in such case is not formed with a piston 16.
Patent GB-436633-A (GB)
Title: Improvements relating to alloys and to bearings incorporating the same
IPC: C22C20/00
Filed: 1935-03-15
Abstract: An alloy for bearings consists of at least 95 per cent of cadmium and 0,05-5 per cent of silver, preferably with the addition of 0,25-1 per cent of a hardening metal, particularly copper or nickel or both.  Up to 0,25 per cent of zinc may be present.  A bonding alloy for uniting the above alloy to a steel base may consist of 80-95 per cent of cadmium and 5-20 per cent of zinc.
Patent GB-602441-A (GB)
Title: Improvements relating to containers for powdered, granular and other bulk goods
IPC: B65D3/10
Filed: 1946-03-15
Abstract: 602,441. Laminated cylindrical boxes or drums. PETERS, R. P. March 15, 1946, No. 8102. [Classes 18, 21 and 66] A laminated drum 1 of paper &c. has a bottom 3 and a collar 9 secured by adhesive and/or bystaples 4, the collar 9 fitting the lid 2 which may be held on by pins in bayonet slots, or by pip. Paper endlinings 5 and 7 may be inserted. The dished part 6 of the lid may contact the top of the collar 9. The container may be sealed by a strip 12 and its ends may be reinforced by plain or channelled metal rings 8, the top of the collar 9 may likewise be reinforced.