baber/WOPTO huggingface dataset:
Patent GB-1358482-A (GB)
Title: Voltage-dependent resistors
IPC: H01C7/112
Filed: 1972-03-30
Abstract: 1358482 Zinc oxide varistors MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 30 March 1972 15087/72 Headings C1A and C1J [Also in Division H1] A sintered body comprises a major proportion of ZnO, 0À05 to 20 mole per cent SiO 2 , and from 0À05 to 18 mole per cent in total of one or more of Bi 2 O 3 , CoO, MnO, BaO, SrO, PbO, Sb 2 O 3 , Cr 2 O 3  and NiO, each of the latter oxides not being present in an amount of more than 10 mole per cent. In a preparation, the components may be mixed, dried, pressed in a mould, sintered in air af 1000‹ to 1450‹ C. for from 1 to 10 hours and then furnace cooled. The mixture may be preliminarily calcined at 700‹ to 1000‹ C. and pulverized. The examples illustrate the compositions of many sintered bodies and their properties as voltage resistors.
Patent GB-150113-A (GB)
Title: Improvements relating to the water concentration of ores
IPC: B03B5/62
Filed: 1919-06-16
Abstract: 150,113. Martin, W. M. June 16, 1919. Buddling-apparatus; inclined-trough washing apparatus.-In concentrating-apparatus of the kind in which pulp is passed over frosted or fluted or frosted fluted glass surfaces, the pulp is caused to flow intermittingly, and water may be supplied to the surface between successive flows of pulp. The glass may be arranged in steps to cause the pulp to cascade during its flow. In . the plant shown, superposed fluted glass surfaces a, of which there may be thirty, are arranged in sets of three, discharging one on to another at the lower end as shown. Each third surface is provided with pivoted flaps c. d connected to tipping vessels e, f fed with water, the vessel e being connected also to a valve c' on a watersupply launder l and the vessel f to a valve h in a water vessel k and to a valve i on a pulp launder j. The pulp is distributed through boxes and launders m<1>, o, n to the surfaces a. In operation, after the pulp has been flowing for a certain time the vessel f tips, and turns the flaps d, the valve i at the same time stopping the supply of pulp and the valve h being raised, whereby the water from the vessel k is discharged and washes middlings into launders r. The vessel e next tips, and turns the flaps c, the valve c<4> being at the same time closed, whereupon a water supply from over the sides of the launder t washes concentrates into launders q. The vessels e, f and connected parts return to their normal positions and the operations are repeated. Concentrates may be removed from time to time by means of spray pipes t adjustable in position along the surfaces. The glass surfaces at the parts p, p<1> are so fluted as to distribute the pulp equally over the surfaces a. In a modified method of operation, in which the intermediate water flush is omitted, the tipping-vessels are so arranged or timed as to be operated only after a required accumulation of material on the surfaces a. Specification 15442/14 is referred to.
Patent GB-477436-A (GB)
Title: Improvements in flexible joints for transmitting rotary motion
IPC: F16D3/56
Filed: 1937-05-31
Abstract: 477,436. Circumferentially-adjustable yielding couplings. FABBRICA ITALIANA MAGNETI MARELLI. May 31, 1937, No. 15114. Convention date, June 1, 1936. [Class 80 (ii)] In a circumferentially-adjustable shaft-coupling particularly for driving a magneto, a metallic intermediate member 3 has teeth 6 on one face, engaging facial teeth on a sleeve 8, secured to one shaft 2, whilst on its other face it has two or more pairs of grooves 5 for receiving a stack of resilient metal plates 4, secured diametrically to the other shaft 1. The two pairs of grooves 5 provide two alternative positions of the member 3 on the shaft 1, which are at an angle containing an angle of one of the teeth 6 a fractional number of times, so as to give a vernier adjustment of the shafts. The intermediate member 3 and sleeve 8 are secured to the shaft 2 by a nut 14, which, to allow axial play of the member 3 during adjustment, can be slackened, but retained captive by a spring ring.
Patent GB-553729-A (GB)
Title: Improved means for balancing air forces on guns carried by aircraft
IPC: F41A27/30
Filed: 1940-05-03
Abstract: 553,729. Aircraft gun mountings. BOULTON PAUL AIRCRAFT, Ltd., (Soc. d'Applications des Machines Motrices.). May 3, 1940, No. 15130/39. [Class 92 (i)] Air pressure forces acting on aircraft guns projecting from gun turrets into the air stream are counterbalanced during training or elevation by a cam, eccentric, or crank 1 rotating synchronously with the gun and acting on a piston 5 subject to spring or pneumatic pressure. In the form shown, the eccentric 1 is driven at the same speed as the gun turret by reduction gearing 13 which is connected with the power driven pinion 12 that trains the turret by engaging, a fixed rack 11. The eccentric 1 actuates through roller 3 a piston 5 in a cylinder 6 fast with the turret. Air under pressure is supplied to the cylinder through a pipe 9 and non-return valve 10 by way of an annular chamber 8 and passages 7. In a modification, the cylinder is pivotally mounted and the piston rod is connected to a crank driven by reduction gearing of the epicyclic type. Reference has been directed by the Comptroller to Specifications 204,070, [Class 92 (i)], 367,367, 367,845 and 424,002.
Patent GB-905973-A (GB)
Title: Process for producing l-glutamic acid by bacterial fermentation
IPC: C12P13/14
Filed: 1961-04-26
Abstract: L-Glutamic acid is prepared by aerobically fermenting bacteria of the genus Brevibacterium in the presence of sources of carbon, nitrogen and inorganic salts and also in the presence of at least one C18 unsaturated fatty acid, at least one functional derivative thereof or at least one substance containing such functional derivative. Specified acids are oleic, linoleic, linolenic, elaidic and vaccenic acids.  Functional derivatives of such acids are, for example, water-soluble salts such as the sodium, potassium and ammonium salts. Specified substances containing functional derivatives of C18 fatty acids are lecithin, olive oil and soybean cake.  Specified Brevibacterium are B. lactofermentum, B. saccharoriticum, B. flavum, B. roseum and B. immariophilium.  Specifications 873,448, 876,943 and 889,187 are referred to.
Patent GB-719344-A (GB)
Title: Improvements in or relating to floral displays
IPC: A01G5/00
Filed: 1952-06-17
Abstract: A display comprises natural plant members, e.g. tulips, roses, carnations, pear blossom, ears of green corn, puffballs, with their moisture content and cell structure substantially intact, a thin, impermeable, chemically inert, waterproof coating, e.g. a coating of a mixture of microcrystalline paraffin wax and mineral oil solidifying uniformly at 110 DEG F to at least 100 DEG F from the molten condition, which may be coloured and which adheres permanently to, and seals, those surfaces of the plant members to be exposed to view, a transparent container which encloses the members, and a container filling of clear, transparent liquid, e.g. distilled water which has been heated to drive out air and then treated with ion-exchange materials, such water containing propylene glycol, or such water in which sodium bisulphite or sodium ethyl mercurisalicylate is dissolved.
Patent GB-1037983-A (GB)
Title: Preparation of oligoalkylene sulphides
Inventor: JOHNSON DEE LYNN
IPC: G03C5/39
Filed: 1963-01-14
Abstract: Compounds of formula G(CH2CHR.S)nH, where n is greater than 1, R is H, CH2OH or C1- 8 alkyl, and G is RNH or R1R1N, where is hydroxy-substituted C1- 18 alkyl and each R1 is C1- 18 alkyl, at least one being hydroxy-substituted, are prepared by reacting a compound alkyl-O-COCH2CHR.SH, where " alkyl " contains 1-18 C, with RNH2 or R1R1NH.  A non-polar solvent may be used.  Examples react C2H5OCOOCH2CH2SH with 2-amino-2-methyl - 1 - propanol, 2 - amino - 2 - methyl-1,3 - propanediol, 2 - amino - 2 - hydroxy-methyl-1,3-propanediol, ethanolamine and diethanolamine. Other suitable amines are listed.
Patent GB-1184542-A (GB)
Title: Improvements in or relating to Combine Harvesters.
Inventor: JARVIS JOHN STEVENS
IPC: A01F12/30
Filed: 1966-04-06
Abstract: 1,184,542. Combine-harvesters. RANSOMES SIMS & JEFFERIES Ltd. 30 March, 1967 [6 April, 1966], No. 15355/66. Heading A1F. A grain-saving apparatus comprises a transversely-arranged rotary comb 32 for increasing the linear rearward speed of the mat of straw issuing from the rear of the straw-walkers 26 of a combine harvester, whereby the mat is thinned out to permit grain to pass therethrough, and graincollecting means 44 arranged below the comb for collecting the grain. The comb comprises a drum 32 with rows 34 of prongs protruding from its surface, the prongs being adjustable relatively to a radial direction to suit different types of crop. Below the drum is a grid 37 through which the grain falls on to a tray 44 delivering it to a grain-cleaning unit 47 where it is winnowed and passed by an auger 68 to the clean-grain elevator 76 and thence to the grain-tank 78. In a modification (Fig. 4, not shown) the straw-mat passes over the rotary-comb.
Patent GB-513510-A (GB)
Title: Improvements in rowing boats
IPC: B63H16/02
Filed: 1938-05-24
Abstract: 513,510. Rowlocks. THOMAS, A. B. May 24, 1938, No. 15406. [Class 114] . Rowlocks s carried on outriggers f<1>, f<2> are coupled by a linkage h, i. o, j with the sliding seat m. The lever o pivoted at r has perforations with one of which the rod i is connected, the perforation being selected to provide the most suitable leverage for the oarsman. The parts are disposed so that the mean path of the rowlock is parallel to the longitudinal axis of the boat. Specification 15594/01, [Class 114], is referred to.
Patent GB-544655-A (GB)
Title: Improvements in or relating to apparatus for applying coatings to materials
IPC: A43D25/18
Filed: 1940-10-21
Abstract: 544,655. Coating webs. BRITISH UNITED SHOE MACHINERY CO., Ltd., and PRATT, J. W. Oct. 21, 1940, No. 15488. [Class 140] In a device for coating a strip of textile or other material with adhesive or other substance having a stripper 14 arranged to control the thickness of the coating applied to the strip' 50, a yieldable support 22 is arranged between the stripper 14 and the base 16 which would otherwise support the strip. The supporting plate 22 is bent along a line 24 parallel to its front edge, and the weight of the rear portion tends to maintain the margin of the plate towards the lower edge of the stripper. Specification 356,790 is referred to.
Patent GB-1048776-A (GB)
Title: Floating platform unit
IPC: B63B35/44
Filed: 1965-04-12
Abstract: 1,048,776. Offshore floating structures. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. April 12, 1965 [April 13, 1964], No. 15505/65. Heading E1H. A floating platform unit for carrying out offshore operations such as drilling or producing a well comprises three or more vertical stabilizing columns such as 11, 12 with buoyant crossbracing hull members 14, 15, 16, 18 attached near the lower ends thereof, rigid motion damping keels 40 extending substantially horizontally from either the outboard, inboard or both sides of the cross-bracing hull members. The keels may either extend the full length of the hull members or may consist of several short sections. They may be provided with holes 41 to increase their effectiveness so that pitching and rolling are considerably reduced in heavy weather.
Patent GB-1418363-A (GB)
Title: Process for the production of 6-piper-azinyl-morphanthridines and related tricyclics
IPC: C07D295/04
Filed: 1973-04-02
Abstract: 1418363 Preparation of piperidinylmorphanthridines and related tricyclic compounds WANDER Ltd 2 April 1973 [4 April 1972 (2)] 15667/73 Heading C2C The invention comprises a process for the preparation of compounds of Formula I wherein A represents a structure Z1 or Z2 R 1  is H, alkoxyalkyl having a total of 2 to 6 carbons, C 1-4  alkyl, C 1-4  hydroxyalkyl or acyloxyalkyl having a total of 3-22 carbons; R 4  is H, C 1-4  alkyl, C 1-4  alkoxy, C 1-4  alkylthio, halogen or CF 3 ; when A is Zl; X is OH 2 , O, S, NH or N-C 1-3  alkyl, R 2  is H, C 1-4  alkyl, di-C 1-4  alkylaminosulphonyl, C 1-4  alkylsulphonyl, C 1-4  alkoxy or alkylthio, halogen, NO 2 , CF 3 SO 2 , CF 3 O-, CF 3 S, CH 3 CO-, CN, or CF 3  and R 3  is H, halogen or C 1-4  alkyl; when A represents Z2, X is CH 2  or S or their acid addition salts in which a compound of Formula II is reacted with a metal-amine complex comprising Ti, Zr, Hf or V and a compound of Formula III the metal-amine moiety of the complex being obtainable by reacting Ti, Zr, Hf or V respectively in tetrahalide form with a compound of Formula III. The reaction may be effected in a solvent, in the presence of an acid binding agent. Substituents represented by R 1  may be converted by known means, into other groups also within the scope of the definition of R 1 , i.e. an acyloxyalkyl group may be saponified to produce a hydroxyalkyl group. 1-Benzyl-4-tert.-butylpiperazine is prepared by reaction of bis-(2-chloroethyl)-t.-butylamine and benzylamine in ethanol and is then hydrogenated to cleave off the benzyl group and obtain 4-t.-butylpiperazine. 2-(2-Aminobenzyl)-thiophene is prepared by reduction of the corresponding ketone with hydrazine hydrate and is then reacted with phosgene to obtain 2-(2-isocyanato benzyl)thiophene which is converted into 4,5-dihydro-10H- thieno[3,2 - c][1]benzazepin-4-one by heating with polyphosphoric acid. N - p - toluenesulphonyl - 4 - chloroanthranilic acid chloride and the corresponding 5-chloro compound are obtained by reacting the free acid with thionyl chloride. Reaction of the acid chloride with thiophene in the presence of SnCl 4  gives 2 - (2 - p - toluenesulphonylamido - 4(5 - )- chlorophenyl-thienone which is hydrolysed by treatment with cone. sulphuric acid to 2-(2- amino-5(4-)chlorophenyl)-thienone. This ketone is reduced with hydrazine hydrate to 2-(2- amino - 5 - chloro(4 - chloro) - benzyl)thiophene which gives 2-(2-isocyanato-5(4)-chlorobenzyl) thiophene on reaction with phosgene. The isocyanato compound undergoes ring closure on reaction with polyphosphoric acid to obtain 7a(8) - chloro - 4,5 - dihydro - 10H - thieno[3,2- c][1]benzazepin-4-one. The products of Formula I are described as having central nervous system activity.
Patent GB-683685-A (GB)
Title: Improvements in and relating to brassieres and the like
IPC: A41C3/00
Filed: 1948-06-10
Abstract: 683,685. BrassiÞres. KEMP, V. F., and KEMPAT, Ltd. June 8, 1949 [June 10, 1948], No. 15689/48. Class 141. In a brassiÞre of the type in which the breast cups each comprise upper and under bust sections, the meeting edges are such that one section, when flat, presents to the other section convex curves meeting in an apex or an inwardly directed point, the other section presenting a complementary edge having rectilinear portions meeting in an angle corresponding to the apex or point, and the two edges being secured together. As shown, the upper section 1 has straight edges 2 meeting at the point 3 which is in the vicinity of the nipple, and the lower bust section 5 has its upper edge cut in convex curves meeting at the apex 7. Instead of sloping downwardly, the edges 2 may be in a straight line or slope upwardly. Crossed elastic straps 9 may be inserted between the cups and elastic straps 12 positioned at the sides of the upper sections of the cups. Specification 652,433 is referred to.
Patent GB-479731-A (GB)
Title: Improvements in or relating to signal transmission systems
IPC: H04N5/257
Filed: 1937-06-07
Abstract: 479,731. Copying - telegraphy. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. June 7, 1937, No. 15766. Convention date, June 5, 1936. [Classes 40 (iii) and 40 (v)] To improve the definition of the reproduction, a transmitter is controlled by at least a current or potential which varies with the rate of change of intensity of potentials or currents which vary with variations in the subject 10. The latter potentials or currents may also be transmitted. The former potentials are applied to a controlling grid 31, and the latter to a controlling grid 30 in a thermionic valve 32. The original potential is produced by light scanning contrasting markings in the subject and falling on a photo-electric cell 24, the current from which is applied to an adjustable resistance-reactance circuit R, C to produce the derived potential. The combined signals modulate a carrier at 40. Both sets of potentials may be applied to a single controlling grid, Fig. 3 (not shown). According to modifications : a capacity is shunted across the resistance 33, Fig. 1b (not shown) ; the circuit RC is replaced by a transformer, Fig. 2 (not shown) ; the potentials are applied directly to the modulator, Fig. 4 (not shown).
Patent GB-275571-A (GB)
Title: Acoustic devices, such as loud speakers
IPC: H04R7/12
Filed: 1927-06-14
Abstract: 275,571. Electrical Research Products, Inc., (Assignees of Wente, E. C.). Aug. 4, 1926, [Convention date]. Loud-speakers; magnetic instruments; diaphragms. - An acoustic device, such as a loudspeaker, comprises a sound chamber, a diaphragm therefor and a plug in the chamber, a substantial portion of the diaphragm being stiffened so as to vibrate as a piston and the base of the plug being in close face to face relation with the stiffened portion of the diaphragm but less closely spaced at its periphery near the sound outlet passage. The diaphragm, plug and chamber are preferably so shaped and arranged that converging sound passages are formed leading from the centre of the diaphragm and from its peripheral portion, respectively, to a common sound passage. The cross sectional areas of these converging sound passages increase as the common sound passage is approached and are such that substantially equal volume displacements occur in each of these passages in response to the displacement of the diaphragm. In the construction of loud-speaker shown, a metallic plug 23 in the form of a spherical sector is secured by lugs 24 and screws 25 in a housing 20, which is suitably shaped internally, the radius of the plug being slightly smaller than that of the dish-shaped central portion 17 of the diaphragm. The outer portion of the diaphragm is formed with a corrugated portion 18 and flat portion 19, which is clamped between the housing 20 and the portion 15 of the electromagnetic structure. The converging sound passages from the central and peripheral portions of the diaphragm respectively meet the common sound passage at the throat of the exponentially tapered horn 26. A coil 14 is secured to the periphery of the stiff central portion 17 of the diaphragm by means of a strip 30 of stiffened fabric material or thin light-weight metal. The ends of the coil 14 are positioned along corrugations in the flexible portion 18 of the diaphragm and secured to screws 31, 32 electrically connected to terminals 33, 34. The electromagnet comprises a hollow annular core 10, winding 11 and annular pole pieces 12, 13, the top portion 15 being detachable to permit assembling of the winding 11 on the core structure. The space at the mid-portion of the core 10 is closed at each end by wire gauze members 27, 28 and a sound absorbing material 29. Specification 275,567 is referred to.
Patent GB-476491-A (GB)
Title: Light projecting apparatus
IPC: G03B33/00
Filed: 1936-06-05
Abstract: 476,491. Lamps projecting multicoloured light. PRIBIL, S. June 5, 1936, No. 15798. [Class 75 (iv)] For obtaining multi-colour effects, light is projected through a perforated screen, the light being mainly convergent or divergent on impinging on the screen. The apparatus may comprise an ellipsoidal reflector 3 for concentrating light from one or more electric light bulbs 1 to a focus in the visinity of one or more perforated screens 4, 5. The latter may consist of gauzes or of perforated card, zinc or other metal, and are preferably associated with an apertured diaphragm 7. The front of the bulb 1 may be silvered as at 2 and the emergent multi-coloured beam may be projected by one or more lenses 8 on to a screen 9. The colour effects may be varied by arranging in the path of the emergent beam a stencil or other diaphragm, or rotatable colour filters, or by changing the number and /or relative position of the elements of the apparatus, either manually or auto. matically as by means of an electric motor.
Patent GB-1488418-A (GB)
Title: Junction plates for the assembly of wooden members and especially structural members
IPC: F16B15/00
Filed: 1975-04-17
Abstract: 1488418 Spiked junction plates J M GUISLAIN 17 April 1975 [18 April 1974] 15847/75 Heading F2H In a plate 3 for straddling two wooden members 1, 2, e.g. of a beam or truss to join them together and comprising a sheet-steel component having punched-cut teeth 4, 12, main teeth 4 are provided which have narrow leading portions 5 for positioning and locating the plate relative to the members 1, 2 and wider base portions 6 adapted to be forced into the members 1, 2 under the action of a press, for withstanding forces between the members, and auxiliary teeth 12 are provided which are less wide than the main teeth 4 and as long as the wider portions 6. Preferably the main teeth 4 are curved transversely and inclined longitudinally as shown, the main teeth 4a, 4b on opposite halves of the plate being inclined in opposite directions such that when the teeth 4 are driven into the members 1, 2 the members are urged together. The provision of die-stamped projections 9 on the plate at the bases the teeth 4, 12 enhance this effect. The cut-outs 13 left by the auxiliary teeth 12 are transversely aligned with the narrow portions of the cut-outs 14 left by the main teeth 4. The auxiliary teeth 12 may be asymmetric about their longitudinal axes.
Patent GB-859992-A (GB)
Title: Guards for rotary cutting tools
Inventor: JONES ERNEST
IPC: B23Q11/06
Filed: 1958-05-19
Abstract: 859,992. Machinery guards. ROWLEY Ltd., W. April 21, 1959 [May 19, 1958], No. 15943/58. Class 80 (4) In guard means for a circular saw 5 or other rotary cutting tool which is mounted on a carrier (not shown) to be displaceable transversely of its axis (e.g. downwardly) towards a work-bench (not shown), the upper half of the saw is covered by a semicircular housing 4 fixed to the carrier, while the lower half is covered by two segmental shields 10, 11 mounted for pivotal movement about the saw axis, the shields 10, 11 being held together by a spring 12, but being coupled by respective links 13 pivoted to a fixed bracket 14 so that the shields are moved apart and into the housing 4 as the saw is lowered. The position of the bracket 14 and/or its pivotal connections may be adjustable (e.g. by slots). As shown, the segmental shields 10, 11 are formed with cylindrical sleeves concentrically mounted on a sleeve 6, Fig. 2, formed on the housing 4 and surrounding the saw shaft 7.
Patent GB-881286-A (GB)
Title: Production of alkali metal tripolyphosphates
Inventor: EDWARDS JAMES WILLIAM
IPC: C01B25/41
Filed: 1958-05-19
Abstract: An alkali metal tripolyphosphate is prepared by heating at below the melting point of the tripolyphosphate a mixture of two or more compounds selected from alkali metal phosphates and alkali metal hydrogen phosphates or a double salt derived from two such compounds, said mixture or double salt having a M2O:P2O5 ratio of 1,5-1,8, a M:H ratio (excluding H present as water) of less than 10 and containing initially at least 1% by wt. of the phosphates of preformed crystalline tripolyphosphate.  The mixture may comprise ortho-, pyro-, meta- or intermediate glassy phosphates, or mixtures thereof, which may be hydrated or anhydrous.  Numerous examples are given, in which sodium, potassium and lithium are specified. If it is desired to obtain Form II tripolyphosphate, it is preferred to use Form I or hexahydrate tripolyphosphate as seed material and a temperature of 200 DEG -470 DEG C.  For Form I products the temperature may be in excess of 500 DEG C.  The initial tripolyphosphate may be added as a solid to the other components or at an earlier stage, e.g. by adding to a solution from which the other components are recovered by evaporation.