baber/WOPTO huggingface dataset:
Patent GB-122772-A (GB)
Title: Improved Means for use in Cooling Cylinders of Internal Combustion Engines.
IPC: F01P9/00
Filed: 1918-05-30
Abstract: 122,772. Wolseley Motors, Ltd., and Reeve, E. May 30, 1918. Cylinders, cooling. - A cylinder barrel a is coated with a good heat conductor b, which also has a high specific heat, such as copper and in contact with this is a gilled casing preferably of an aluminium copper alloy or a water jacket.
Patent GB-1088086-A (GB)
Title: Fluid-pressure-sensing apparatus
IPC: G05D11/035
Filed: 1965-03-02
Abstract: 1,088,086. Fluid-pressure servomotor systems; regulating fluid flow. JOHNSON SERVICE CO. March 2, 1965 [April 6, 1964], No. 8909/65. Headings G3H and G3P. A fluid-pressure sensing or control device comprises a two stage pure fluid amplifier 8 which consists of a three terminal modulator 20 which receives a sensed pressure signal through an inlet 33 and a constant reference pressure from a source 27 through an inlet 24. The inlet 24 leads to a nozzle 23 and the signal pressure acts on the jet through a nozzle 31 and thereby varies the pressure in the receiver or output jet 25 to provide an output signal proportional to the input signal. The output signal is fed to the input 45 of a transverse impingement modulator 21. The modulator 21 has opposed jets 39, 41 supplied from the source 27 through restrictors 38, 40, 42 and the restrictors 40, 42 are adjusted whereby in the absence of a signal at the input 45, the jets impinge in an orifice 43 and @@s provide a pressure in an output 47. The input jet deflects the jet from nozzle 39 thus causing impingement towards the nozzle 39 and thereby providing an output signal proportional to the input. This output may be fed through a fluid amplifier 9 of any known type to a gauge 51 to provide a measurement of the sensed signal and to an actuator 3 controlling a damper 2 in a fluid duct 1. As shown, the pressure sensed is the static pressure by a probe 5 and the total pressure by a probe 6 and these two pressures act in opposition through nozzles 11 and 16 of a modulator 7 to provide an output signal proportional to the velocity pressure which signal provides the input to the two stage amplifier 8. In a modification, the static pressures on opposite sides of a fixed orifice are fed to the modulator 7. In a further modification, the modulator 7 is omitted and the static pressure fed directly to the amplifier 8.
Patent GB-1024441-A (GB)
Title: Improvements in or relating to pulse-width modulating devices and/or d.c.-to-a.c. inverters
Inventor: MAINE ARTHUR EDWARD
IPC: H02M7/525
Filed: 1961-03-10
Abstract: 1,024,441. inverting. DE HAVILLAND AIRCRAFT CO. Ltd. March 12, 1962 [March 10, 1961 (2)], Nos. 8921/61 and 8919/61. Heading H2F. An inverter comprises a square wave oscillator 2 providing a first output and a second output which is phase displaced by a circuit such as that disclosed in Specification 1,005,431, the two outputs being fed to control inverting elements 4,5 which may be silicon controlled rectifiers. The output circuits of the rectifiers include transformers whose secondary windings are in series and this circuit provides an output which is the sum of two phase displaced square waves and has a frequency equal to the oscillator frequency and an amplitude which is dependent on the phase displacement. The fundamental component is filtered out by a filter 6 giving a sinusoidal output. To maintain this constant a feedback circuit including a voltage regulating device varies the phase displacement in dependence on variations in output voltage. Should the load be short circuited, a protection device operates (a) to give a 180 degrees phase shift and hence zero output or (b) to switch the oscillator off. The oscillator frequency may be made dependent on the output. By providing three similar circuits as shown with a 120 degrees phase shift between them, a polyphase output may be obtained.
Patent GB-1079005-A (GB)
Title: Purification of ethylenically unsaturated sulfonated monomers
Inventor: KANGAS DONALD ARNE
IPC: C07C303/42
Filed: 1966-03-01
Abstract: Hydrous ZrO(OH)2 is prepared by neutralizing a solution of ZrOCl2 in deionized water to pH7 with SN.NaOH, and filtering off the white flocculent precipitate, which is then washed on a medium sintered glass funnel to remove chloride ions. A diatomaceous earth filter-aid may be added to the ZrOCl2 solution before neutralization.ALSO:Polymerizable ethylenically unsaturated sulphonated monomers which are dissolved in an aqueous solution of the monomer and of the polymer of the monomer, are purified by adding a cationic adsorbent which is (1) a water-insoluble colloidally dispersible inorganic solid or (2) a colloidally dispersible organic solid containing polymerically combined cationic groups or (3) a water-soluble polycatonic electrolyte, to the aqueous solution and thereafter isolating the polymer-adsorbent phase which forms from the aqueous phase.  Suitable monomers are sulphoethyl-methacrylate, ethylene and styrene sulphonic acids, and the acids are preferably used in the form of their salts, e.g. the sodium salt of sulphoethyl-methacrylate acid.  Suitable purifying agents are (1) hydrous ZrO2 (ZrO(OH)2), Al2O3(Al(OH)3), and Fe2O3-(Fe(OH)3), (2) emulsions of 2-aminoethylacrylate hydrochloride copolymerized with styrene and (3) polyalkyleneimines, e.g. polyethyleneimine, poly-2-aminoethyl methacrylate-HCl, poly - N,N - dimethyl - 2 - aminoethyl methacrylate-HCl, and starch containing chemically bound dimethylaminoethyl ether groups. The monomer solution should preferably contain not more than 30% by weight of monomer. Colour bodies may be removed from the monomer solution by an after-treatment with activated charcoal.
Patent GB-375355-A (GB)
Title: Improvements in the production of woven crepe fabrics
IPC: D03D15/56
Filed: 1931-03-24
Abstract: 375,355. Crape fabrics. BRITISH CELANESE, Ltd., 22, Hanover Square, London, DICKIE, W. A. and PATCHETT, R. V., of British Celanese, Spondon, near Derby. March 24, 1931, No. 8989. [Class 142 (iv).] Woven fabrics exhibiting crape effects contain yarns consisting of a high twist yarn doubled with a low twist yarn. The high twist yarn may form a loose spiral about the low twist yarn and the components of the doubled yarn may have twists in the same or opposite directions, and the yarn may be doubled in the direction of the low twist yarn. One or both components may contain filaments of organic derivatives of cellulose or of reconstituted cellulose, or natural fibres may be used. The doubled yarn may be employed as warp or weft, or both. The crape effects may be enhanced by swelling the filaments, fibres, on sizes as described in Specifications 348,589, 351,999, 352,000, 352,451, 356,233, 357,084, and 357,169. Sizing may be effected before, during or after doubling or twisting. Differential effects may be produced by dyeing the yarns of high and low twist in different manners. Specifications 357,576 and 357,577 also are referred to.
Patent GB-702930-A (GB)
Title: Improvements in or relating to process for scouring wool
IPC: D01C3/00
Filed: 1951-04-18
Abstract: Wool is treated with an aqueous solution of an alkali, e.g soda ash, and then scoured with an aqueous composition comprising alkali and a condensation product of one mol of tertiary dodecyl mercaptan and 7 to 9 mols of ethylene oxide.  An Example is given in which wool in the grease is passed through a series of bowls containing, respectively, water, soda ash, soda ash and tert-dodecylmercaptan-ethylene oxide condensation product (mol ratio 1 : 7.5), condensation product alone, and peroxide bleach. A similar test is carried out using soap to give a comparative result.  The Specification also includes tests showing the effect of various other scouring agents in comparison with the condensation product used in the process of the invention.
Patent GB-162895-A (GB)
Title: Improvements in calculating apparatus
IPC: G06G1/08
Filed: 1920-03-29
Abstract: 162,895. Bygrave, L. C. March 29, 1920. Logarithmic calculators for solving spherical triangles by the tangentcosine formulae, for example for determining the altitude and azimuth of an observed heavenly body when the latitude, hour angle, and declination are known, comprise two coaxial cylinders 1, 2 preferably of opaque material graduated on helical lines capable of movement relative to one another and to a cursor 3 provided with pointers 4, 5 of different lengths which co-operate with the two cylinders. The inner cylinder is graduated with a scale representing logarithmic tangents and the outer cylinder with a scale representing logarithmic cosines, separate scales being provided to cover the very small angles and angles near 90‹ respectively, but used only in conjunction with one another. To deal with angles greater than 90‹, the scales may be numbered backwards. The cursor 3 can be readily brought to zero by moving the parts until a projection 7 thereon engages a stop 6 on the outer cylinder 2. In a modification, the cylinders are coaxial, but are of the same diameter, and the pointers are formed by a tube slidable along a shaft parallel to the axis of the cylinders, one pointer being relatively movable on the tube.
Patent GB-555214-A (GB)
Title: Improved method of, and means for, stirring or circulating molten or liquid materials or mediums
IPC: H05B6/34
Filed: 1941-11-17
Abstract: 555,214. Mixing molten material. GERBER, J. S., and REDFERN, W. D. Nov. 17, 1941, No. 9110/43. Divided out of 554,229. [Class 86] [Also in Group XI] Molten material in a furnace or mixer which, if heated, is heated by means other than a direct arc, is stirred by the interaction of a direct current passed through it between electrodes 22, and a magnetic field created by passing direct current through flat coils 8, 9 below the material. The intensity of the field may be increased by cores 17, 18, associated with the steel shell 6. The intensity and direction of the stirring may be controlled or reversed by regulating or reversing either current. Specification 390,580, [Group XI], is referred to.
Patent GB-1438466-A (GB)
Title: Exercising devices
IPC: A63B21/00
Filed: 1974-02-28
Abstract: 1438466 Exercise device M S MAZMAN 28 Feb 1974 [29 June 1973] 9151/74 Heading A6M In an exercise device 10 which gives a variable amount of resistance to a user during an exercise movement weights 14 are raised and lowered by a lever arm 30 which passes through a yoke 48 in the upper end of weight lift rod 24 and which pivots on a shaft 32 mounted in frame 12. A selected quantity of weights are secured to rod 24 but are free to travel on vertical guide rods 16 pivoted at their lower ends on shafts 18. The lever 30 is horizontal when the device is at rest and as a user raises the lever it is inclined so that roller 50 mounted in yoke 48 moves outwardly on the upper surface 54 of lever 30 and at the same time the guide rods 16 pivot on shaft 18. The movement of the roller reduces the users mechanical advantage and increases his effective load and also as the lever is raised the magnitude and direction of the lifting force occurs varying the portion of that force which is devoted to lifting the weights thereby further increasing the effective load on the user. A guide arm. 56 pivoted on shaft 58 in adjustable mounting 62 and pivoted at 60 to yoke 48 controls the distance roller 50 travels and the movement of the upper end of rod 24 which follows an arcuate path 70. The location and rate of change of the variations in resistance at particular points in an exercise movement can be adjusted by altering the length of arm 56 and the distance of pivot 58 from pivot 32. In a simpler embodiment Fig. 5 (not shown) the guide rods are not pivoted and there is no guide arm. The variations in resistance may alternatively be provided either by a guide block (120) Fig. 9 (not shown) having a contoured upper surface secured to the upper surface of the lever arm in the area of travel of the roller or by using a contoured roller (126) Fig. 10 (not shown) having peripheral teeth which engage a rack gear (128) secured to the upper surface of the lever arm.
Patent GB-459210-A (GB)
Title: Process for the production of power by means of nuclear combinations
IPC: G21B1/00
Filed: 1935-11-25
Abstract: 459,210. Heating by chemical action. NEUTRON SOC. ANON., Bergstrasse, Glarus, Switzerland. March 25, 1935, No. 9266. Void [Abridged as open to inspection under Sect. 91 of the Acts, Aug. 17, 1936]. [Class 64 (ii)] [See also Group XL] Hydrogen saturated with lithium vapour, and oxygen, are ignited by a spark in a boiler tube, and the hydrogen and lithium atoms are combined to form helium, with the generation of heat. The steam generated is used in engines or turbines. Specification 458,496, [Group XL], is referred to.
Patent GB-581211-A (GB)
Title: Improvements relating to seats or chairs or equivalent
IPC: A47C4/22
Filed: 1944-05-15
Abstract: 581,211. Chairs. GOUGH, F. H., and FISHER, S.W. May 15, 1944, No. 9288. [Class 52 (ii)] In a chair &c. of the kind in which a seat frame 1 is hinged to a back frame 13 so that an occupant can vary the angular positions of the seat and back, arm rests 21 are pivoted to the back frame and to front supporting struts 30 pivoted to the seat frame, the pivoted connection between the arm rest and the strut being provided with locking means. In the construction shown in Fig. 4, a peg 36, on a spring tongue 39 carried by each arm rest selectively engages one of a number of holes in a block 34 carried by each strut 30. In a modification the arm and strut carry apertured discs engaged by pegs carried by a sliding member. As shown in Fig. 2 the front end of the seat frame 1 is pivoted to legs 6 with base members 8 to which are pivoted rear struts 9 pivoted to the back rest. The chair can be folded by disengaging the locking means. According to the Provisional Specification, the base members 8 are dispensed with and rearwardly sloping struts, pivoted to the legs 6, provided.
Patent GB-600936-A (GB)
Title: Improvements in picture telegraph instruments
IPC: H04N1/06
Filed: 1945-04-13
Abstract: 600,936. Copying-telegraphy. ASSOCIATED NEWSPAPERS, Ltd., and JARVIS, F.W. April 13, 1945, No. 9292. [Class 40 (iii)] In a picture telegraph instrument, wherein a rotary drum is scanned by a spot of light directed from a scanning head, a ratchet and pawl system is driven from the rotary drum whereby relative lateral movement between the drum and the scanning head occurs through the width of one line for each revolution of the drum. As shown, the drum DR is mounted upon a slide SL, carried by a lead screw LS which engages a fixed nut NU so that rotation of LS produces a lateral movement of the drum. A ratchet wheel RW<1>, keyed to the lead screw LS is driven by a pawl PA' pivoted to a pawl carrier PC1 linked through a tailpiece TP and connecting rod CR<1> to an eccentric EC<1> on the drum shaft DS. Alternatively, the connecting rod may be actuated by a cam on shaft DS, Fig. 2 (not shown), or the pawl may be operated by an electromagnet controlled by contacts operated by a cam on the drum shaft, Fig. 3 (not shown). The pawl may be arranged to advance the ratchet wheel one or more teeth at each operation by adjusting the point of connection between the tail-piece and the connecting rod, by using a series of cams selectively slidable on shaft DS, Fig. 2 (not shown), or by a member controlled by a further adjustable eccentric on shaft DS and serving to mask a variable number of teeth on the ratchet wheel, Fig. 6 (not shown). A second pawl PA<11> may provide for rotation in the reverse direction or two ratchet wheels may be used having saw-teeth in opposite sense and with means for clutching either to the lead screw, Fig. 4 (not shown). Where an electromagnet is used, its armature may carry two pawls engaging alternately with two ratchet wheels in the energized and de-energized conditions respectively, Fig. 5 (not shown), or two electromagnets may be used. The ratchet wheel or wheels, instead of being attached to the lead screw, may be attached to a threaded nut, through which the screw passes with lateral but not rotational movement. Also, the screw may have rotational movement only in which case it is coupled to the slide SL through a threaded nut. Also the slide SL may be attached to the scanning head, which then moves laterally through the width of one line for each revolution of the drum.
Patent GB-790641-A (GB)
Title: Water dispersible solid nitrilo-methylolphosphorous polymers
Inventor: REEVES WILSON A
IPC: D06M15/667
Filed: 1955-03-30
Abstract: Solid, water-soluble or dispersible nitrilomethylol-phosphorus polymers, which are stable and further polymerizable, are prepared by heating, in an aqueous solution maintained at a pH of substantially 5.5 or less, an organic nitrogen compound having a molecular weight of not more than 400 and having at least one trivalent nitrogen atom and at least 2 members selected from hydrogen atoms and methylol groups attached to the same or different trivalent nitrogen, with at least one phosphorus compound selected from tetrakis (hydroxymethyl) phosphonium (THP) salts, tris(hydroxymethyl) phosphine oxide (THPO) and the incomplete reaction products of such phosphorus compounds with a nitrogen compound as above containing at least two phosphorus-linked methylol groups, terminating the reaction before any considerable amount of undissolved polymer is formed, isolating the polymer and drying at a temperature below 45 DEG C. Suitable nitrogen compounds are urea, methylol ureas, alkylated methylol ureas, oxalyl urea and hydantoin; melamine, methylol and alkylated methylol melamines, alkyl- and alkaryl-substituted melamines and guanidine; amines such as ethylamine, ethylenediamine, allylamine and cetylamine; amides such as formamide, butyramide, octadecylamide, dicyandiamide and acrylamide; and amino-acids such as glycine, lysine and arginine; and reaction products of any of these with a THP salt or THPO, the product preferably containing at least one methylol group. Formaldehyde may be included in the reaction either simultaneously or after incomplete reaction between the phosphorus and nitrogen compounds, or the nitrogen compounds can be incompletely reacted with formaldehyde prior to reaction with the phosphorus compounds.  Reaction is preferably effected by agitating the reactants in water while heating.  Isolation of the polymers is accomplished by lowering the solvent capacity of the reaction medium, e.g. spraying into an evacuated chamber; diluting with a water-miscible organic solvent in which the polymers are less soluble than they are in water, such as a lower aliphatic alcohol; diluting with an organic liquid solution of a salt; raising the pH above 5.5 by adding a water-soluble basic compound which is inert towards the polymers; or by materially lowering the temperature.  The isolated polymers are dried after removing unreacted components.  They may be modified to increase their solubility in solvents such as turpentine and lower fatty esters by reaction with alkanols of from 2 to 7 carbon atoms.  The polymers are particularly useful for flame-proofing textiles, and an illustrated composition for this purpose comprises an aqueous solution of a reaction product of melamine and THP chloride, to which is added urea and triethanolamine.  A number of examples is given of preparations of various polymers.  Specifications 740,269 and 761,985 are referred to.
Patent GB-627108-A (GB)
Title: Improvements in or relating to flame spraying apparatus
IPC: B05B7/20
Filed: 1947-04-09
Abstract: 627,108. Spraying fusible materials. DURDEN, F. W. April 9, 1947, No. 9387. [Class 69 (iii)] Apparatus of the type wherein powder is conveyed from a container to a spraying pistol by pneumatic means, has the powder injector 4 situated apart from the pistol P and between the pistol and the powder container C so that the powder is conveyed by suction to the injector 4 via the pipe 5 and by air pressure from the injector to the pistol via the pipe 3. Oxygen and one of the usual gases are conveyed to the pistol burner by means of pipes 1 and 2. Air inlet to the pipe 5 is controlled by means of a valve 11 and the container C may be vibrated by electrical or pneumatic means to assist the flow of powder into the suction line.
Patent GB-1254962-A (GB)
Title: Microwave semiconductor diode
Inventor: WILKINSON ERNEST LINCOLN GEORG
IPC: H01L29/00
Filed: 1969-02-21
Abstract: 1,254,962. Avalanche diodes. ENGLISH ELECTRIC CO. Ltd. 23 Feb., 1970 [21 Feb., 1969], No. 9423/69. Heading H1K. In making an impact-avalanche transit-time oscillator diode an epitaxial layer is formed on a chip of heavily doped semi-conductor material, a junction formed in the layer and then a metal heat sink is bonded to the layer and peripheral parts of the chip removed, for example by an air abrasive. In the embodiment, in which an N-type silicon chip 150 Á thick with a 7 Á epitaxial layer is used, the P region is diffused to a depth of 2 Á and is then thinly coated with chromium and gold and diced into chips 600 Á square. Each chip is thermocompression bonded to the flat head of a gold-plated pin and reduced to a diameter of 150 Á by the abrasive. The assembly is completed by bonding a ceramic ring to a flange on the pin, and attaching a copper lid through the intermediary of a metal annulus which is connected to the chip by a gold wire.
Patent GB-1497566-A (GB)
Title: Non-crucible zone melting
IPC: C01B33/02
Filed: 1975-03-07
Abstract: 1497566 Induction heating apparatus SIEMENS AG 7 March 1975 [27 May 1974] 9493/75 Heading H2H [Also in Division H1] Apparatus for the zone melting of a crystalline rod 8 without the use of a crucible comprises an induction heating coil 7 surrounding the rod at the zone required to be melted, the induction heating coil being connected in parallel with a capacitor 6 so as to form an oscillatory circuit which is supplied from a high frequency generator 1 by way of an adjustable coupling device 3 and a high frequency conductor 5, the conductor 5 being provided with liquid cooling. The high frequency generator 1 may be in the form of a Hartley oscillator circuit and comprise a triode valve, the output frequency being adjustable by means of a capacitor 2a. The induction heating coil 7 is coupled to the output winding 2b of the high frequency generator 1 by a winding 3 having a variable coupling ratio with the winding 2b. The connection between the winding 3 and the heating coil 7 includes an inductor or a capacitor 4, either of which elements may be provided with liquid cooling. The high frequency conductor 5 is of a length substantially shorter than one quarter of the wave length of the frequency of the generator 1 and is provided with an earthed metal screen 9.
Patent GB-909495-A (GB)
Title: Improvements in or relating to semi-conductor devices
IPC: H01L29/00
Filed: 1959-03-19
Abstract: Alloys of the following compositions by weight are used in the manufacture of semiconductor devices (see Group XXXVI): 0.5% gallium, 2.5% antimony, balance indium. 1% gallium, 2.5% antimony, balance indium.  0.5% gallium, 2.5% antimony, balance indium and tin in a 1 : 1 weight ratio.  1% gallium, 10% antimony, balance indium.  1% gallium, 5% antimony, balance indium.  1% gallium, 20% antimony, balance indium.  0.5% gallium, 2.5% arsenic, balance indium.  1% gallium, 5% antimony, balance tin.  0.5% gallium, 5% antimony, balance indium.  0.5% gallium, 10% antimony, balance indium.  The alloys are prepared by placing the constituents in an evacuated and sealed quartz ampoule, rapidly heating to above the melting-point of all the constituents while constantly vibrating the ampoule, and quenching in cold water.  The resulting material is then rolled to form a foil.