baber/WOPTO huggingface dataset:
Patent GB-524189-A (GB)
Title: Improvements in and relating to the extrusion of metal articles
IPC: B21C25/08
Filed: 1939-04-14
Abstract: 524,189. Extruding. HIGH DUTY ALLOYS, Ltd., and HERON, J. A. April 14, 1939, No. 11336. [Class 83 (iv)] The section of an article being extruded through a die 6 is varied by rotating or oscillating about an axis one or more member 10, 11 having non- cylindrical portions 8, 9 which project into the die opening. The members 10, 11 may be rotated in consonance with the motion of the ram 2 or the rotation may be reversed one or more times during its stroke. They may also be moved axially as in Specification 518,037 at the same time, e.g. by a screw or worm, or they may be associated with sliding segments such as described in the prior Specification. The movement of the members 10, 11 may be effected mechanically, e.g. rack and pinion 12, or hydraulically &c. In a modification two shafts 20, 21, Fig. 6 intersect the die and have notches 22 to produce the desired variation in section. An article of aerofoil section or an airscrew blade with helical twist may thus be produced.
Patent GB-926241-A (GB)
Title: Vinyltrimethyl lead and hydrocarbon fuel compositions containing the same
IPC: C10L1/30
Filed: 1961-03-28
Abstract: A fuel composition of high octane number comprises a hydrocarbon base fuel boiling in the gasoline boiling range and vinyltrimethyl lead in an amount at least 0,5 millilitres per gallon of base fuel.ALSO:Vinyltrimethyl lead is made by reacting 2 moles of lithium with 1 mole of mono-bromobenzene to give phenyl lithium, reacting this with tetravinyl tin to give vinyl lithium which in its turn is reacted with trimethyl lead chloride.
Patent GB-124354-A (GB)
Title: Improvements in or relating to Lubricating Devices.
IPC: F16N21/00
Filed: 1918-07-11
Abstract: 124,354. Brown & Co., J., and Wood, W. H. July 11, 1918. Splashing and spreader-plate apparatus. - Nozzles designed to give broad flat jets are used to spray oil on to toothed gearing. Each nozzle has a circular orifice 1 with a sharp edge, and a deflector 2 formed with a central recess, as shown. The nozzles are inclined with respect to the line of contact of the gear wheels, as shown in Fig. 4, so that the jets overlap but do not foul one another.
Patent GB-880492-A (GB)
Title: Improvements in or relating to temperature-dependent transistor circuit arrangements
IPC: H01H47/26
Filed: 1958-04-10
Abstract: 880,492. Automatic temperature-control systems. FERNSEH G.m.b.H. April 10, 1958 [April 10, 1957], No. 11379/58. Class 38 (4). [Also in Groups XXXVIII and XL (c)] In a retroactive temperature-controlling circuit in which an output current is developed in the collector-emitter circuit of a transistor as the result of an input potential difference applied between points in the emitter-base circuit of the transistor which are connected across a diagonal of a temperature-sensitive bridge, overloading of the transistor is prevented by providing two alternative paths constituted by a resistor and a rectifier respectively in the emitter-base circuit of the transistor, the rectifier being so poled and biased that it is rendered non-conductive when the input potential difference exceeds a predetermined value whereby for small inputs the resistor is by-passed by the rectifier while for larger inputs the resistor is effective to reduce the gain of the circuit. In the circuit shown for the regulation of the temperature within the housing 15 of a television camera, a thermistor 16 is arranged within a bridge circuit, the other circuit elements of which are arranged within a separate housing 19. The bridge is energized from the terminals 1, 2 connected across one diagonal of the bridge and the base-emitter path of transistor 20 together with resistor 21 and rectifier 27 are connected across the other diagonal. The resistor 21 and rectifier 27 are connected to opposite ends of a resistor 24 whereby the rectifier 27 is normally maintained conductive. The collector-emitter circuit includes a relay winding 43; when the out-of-balance voltage falls due to a rise in temperature within the casing 15 causing the resistance of thermistor 16 to fall, the normally closed contacts of the relay close thereby energizing a cooling device 18, while when the out-of-balance voltage rises due to a fall in temperature the relay is actuated and heating device 17 is energized. If the out-ofbalance voltage becomes sufficiently large the rectifier 27 is cut off, thus increasing the effective base resistance of the transistor and hence maintaining the base current within the limits of safety. A further high-resistance circuit energized from the potential difference developed across the resistor 42 and including a current meter in series with the thermistor 16 is provided to give a temperature indication. Resistor 25 is placed close to the transistor 20 and chosen to have such a resistance and temperature coefficient of resistance as to compensate for temperature effects in the transistor in the manner described in Specification 852,746.
Patent GB-1211473-A (GB)
Title: Improvements in a process for chlorination of material containing hard alloy
IPC: C01G1/06
Filed: 1968-03-08
Abstract: 1,211,473. Chlorination of carbide-containing material. REDERIAKTIEBOLAGET NORDSTJERNAN. 8 March, 1968 [14 March, 1967], No. 11387/68. Heading C1A. In chlorinating a hard alloy comprising WC, TaC, NbC and/or TiC in a cobalt and/or nickel binder metal, chlorine is added alternately with, or together with carbon dioxide, to remove the carbon formed as CO. The temperature of the reaction is suitably above 700‹ C. Carbon dioxide may be present to the extent of 0À05 to 1À0 Kg. per Kg. of alloy. Where the two gases are introduced alternately, an inert gas (e.g. N 2 ) may be added between these additions. When Cl 2  and CO 2  are added together, some WOCl 4  is formed. The mixture of chlorides obtained may be separated by distillation.
Patent GB-753317-A (GB)
Title: Production of 5-aminouracil-4-sulphonic acid and ring n-substitution derivatives thereof and nitrogenous compounds therefrom
Filed: 1953-04-27
Abstract: The invention comprises 5-aminouracil-4-sulphonic acid and ring N-substituted derivatives thereof.  The novel compounds may be obtained by reducing 5-nitro uracil and its ring N-alkyl, -aryl or -aralkyl derivatives, or salts thereof with a dithionite under strongly alkaline conditions to yield a salt which is then converted into the free acid.  The reaction preferably takes place at 10-90 DEG C., more preferably 30-35 DEG  C.  All water soluble dithionites such as sodium, potassium or calcium dithionite are suitable.  Suitable salts of 5-nitro uracil are those of potassium, sodium, calcium and ammonia. 5-Aminouracil-4-sulphonic acid may be (a) fused with urea to yield ammonium urate which may be converted to uric acid; (b) heated with formamide to about 170 DEG  C. to yield xanthine; or (c) treated with nitric and nitrous acid with cooling to yield 5-diazobarbituric acid anhydride.  A detailed example shows the preparation of 5-aminouracil-4-sulphonic acid by treatment of 5-nitrouracil with sodium dithionite and caustic soda, followed by treatment of the salt so formed with acid.  The conversion of the product into uric acid, xanthine, and 5 diazo barbituric acid anhydride is exemplified.
Patent GB-952445-A (GB)
Title: Improvements relating to butterfly valves
IPC: F16K1/226
Filed: 1959-04-07
Abstract: 952,445. Valves. J. R. DEWIDELS. July 7, 1960 [April 7, 1959], No. 11665/59. Heading F2V. A tight closing butterfly valve for operating under high pressure fluid conditions, has an uninterrupted line of sealing contact between the butterfly and the valve body seating which line lies in a plane parallel to but offset from the rotary axis " X " of the valve, the butterfly or body seating having an annular groove 3 which is formed between a main part V of the butterfly or seating and a detachable annular rim V1 or anchoring ring and which, when the valve is closed, lies substantially in the plane of said line of sealing contact and which has a restricted peripheral opening, there being located in this groove a one-piece annular sealing ring 1 which is formed of resilient material and is reinforced by a metal or other relatively inelastic ring 2, whereby the sealing ring can be forced slightly out of the groove by the pressure of fluid gaining access behind the ring but the ring as a whole cannot be forced completely out of the groove owing to the restraining influence of the inelastic ring 2. In a modification, the ring closely fits the dovetail shaped groove shown.
Patent GB-1098130-A (GB)
Title: Anthraquinone dyestuffs
Inventor: IRVING FRANCIS
IPC: C09B1/36
Filed: 1966-03-17
Abstract: The invention comprises anthraquinone dyestuffs of the formula: <FORM:1098130/C4-C5/1> wherein X is a -C2H4-, 1 : 3-phynylene or or 1 : 4-phenylene radical, Y is an -OH, -OR, -NHR or -N(R)2 group, R is an alkyl, hydroxyalkyl or alkoxyalkyl radical, and Z is an anilino group which is optionally subtituted by alkyl, alkoxy or hydroxyalkoxy radicals. They may be obtained by reacting an anthraquinone of the formula: <FORM:1098130/C4-C5/2> with an excess of succinic anhydride or succinyl chloride, isophthaloyl chloride or terephthaloyl chloride and where appropriate treating the resulting acid chloride with a compound of the formula H-Y.  Examples are given for the production of the dyestuffs.  They may be used for the mass-colouration of synthetic linear polyesters in blue shades.
Patent GB-323698-A (GB)
Title: An agglomerated fuel and process of manufacturing same
IPC: C10L5/14
Filed: 1929-04-16
Abstract: 323,698. Hue, M. H. April 16, 1929. Composition fuel.-Briquettes are made by mixing crushed charcoal or half-coked peat or lignite with a binder consisting of hard petroleum tar dissolved in fuel oil residue (mazout). The briquettes are exposed to the air, heated at 500‹-600‹ C. for 3¢ hours, and then cooled out of contact with the air for 7 hours.
Patent GB-483886-A (GB)
Title: Improvements in or relating to rock drilling devices
IPC: E21B17/04
Filed: 1937-04-24
Abstract: 483,886. Percussive drills. McCALLUM, W. J. April 24, 1937, No. 11803. [Class 124] A drill bit has separate cutters 17 which have wedge shaped bases 19 to enter correspond grooves in the retainer 10 and are held in place by a flattened washer 23 on the inside of the retainer and by wedging against one another. The retainer is secured to the tool shank by rivets 25, these entering grooves in the shank to allow limited longitudinal movement.
Patent GB-1065604-A (GB)
Title: Novel 5-(chloro-propylidene)-dibenzocycloheptatriene derivatives and a process for the preparation thereof
IPC: C07D499/68
Filed: 1964-06-26
Abstract: Novel compounds of formula <FORM:1065604/C2/1> wherein A represents an ethylene group which may contain one or more lower alkyl substituents, and Hal represents a 10- or 11-halogen substituent, and wherein the broken line denotes that the alkyl group attached thereby is optional, are prepared by treating a 10- or 11 - halo - 5 - alkoxyalkylidene - dibenzo[a,d]-cyclohepta[1,4,6]triene with boron trichloride at a temperature of - 50 DEG  to + 50 DEG  C.
Patent GB-119233-A (GB)
IPC: E04B7/02
Abstract: 119,233. Bessoneau, J. P. B., and Besnard, C. H. Sept. 21, 1917, [Convention date]. Open fire-places. - The Specification, as open to inspection under Sect. 91 (3) (a), comprised a construction of fireplace, Fig. 2 (Cancelled), made as a transportable whole, the body being formed of trussed cement with the face and tablet of faience or marble if desired. The flue is placed over the aperture a<1>, and the parts b, c' are engaged by a double wall or partition. This subject-matter does not appear in the Specification as accepted.
Patent GB-591980-A (GB)
Title: Improvements in and relating to anthraquinonic derivatives
IPC: C09B5/30
Filed: 1945-05-11
Abstract: Anthraquinone derivatives are obtained by heating products of the general formul  <PICT:0591980/IV/1> <PICT:0591980/IV/2> wherein Hal represents a halogen atom, X an oxygen atom or an imino group which may be substituted on the nitrogen and R an aliphatic or carbocyclic radical together with amino derivatives capable of being vatted and containing at least one active hydrogen bound to nitrogen and one cyclic ketonic group and possibly submitting the resulting compounds to the action of aromatic acid chlorides.  Specified amino derivatives containing at least one active hydrogen atom bound to nitrogen and a cyclic ketonic group are the aminoanthraquinones, aminodibenzanthrones, aminoanthrapyrimidines, aminoanthrapyridones, aminophthaloylcarbazoles, aminoanthraquinoneacridones and their derivatives.  The condensation may be effected in the presence of organic solvents or diluents, a catalyst, e.g. a copper compound usually employed in such condensations and an agent to neutralize the acid formed during the reaction.  In examples: (1) 3 - bromo-o -phenylanthraquinonylene - 1(0) - 2 - oxazole, monobenzoyl - 1; 5 - diaminoanthra - quinone, sodium acetate, copper acetate and copper in nitrobenzene are heated to produce a product which dyes cotton red-brown; (2) 3 - bromoanthraquinonylene - 1 : 2 - phenylimidazole, monobenzoyl - 1 : 4 - diamino - anthra - quinone, potassium acetate, copper acetate and copper in nitrobenzene are heated to produce a product which dyes cotton purplish-blue-grey; (3) the product of (2) in o-dichloro benzene is heated with benzoyl chloride to obtain a product which dyes cotton blue-green; (4) 3-bromo - anthraquinonylene - 1 : 2 - phenylimid - azole, 1-amino-5-benzoylamino-anthraquinone sodium acetate and copper acetate are heated together to produce a product which dyes cotton brown-red; (5) the product of (4) is treated with benzoyl chloride in dichlorobenzene to produce a product which dyes cotton steely blue; (6) the product obtained by heating 3-bromo-o -phenyl - anthraquinonylene - 1(0) - 2 - oxazole, 1 : 4 - amino - benzoylamino - anthra - quinone, sodium acetate and copper acetate in nitrobenzene is heated with (a) 1 : 5-diaminoanthraquinone to produce a product which dyes cotton red, (b) 4-amino-N-methyl-anthrapyridone to produce a product which dyes cotton ruby shades; (7) 3-bromo-o -b 1-anthraquinonylene-1 : 2-oxazole is condensed as in preceding examples with 1 : 5- or 1 : 4-aminobenzoylaminoanthraquinone to produce dyestuffs which dye cotton red-brown; (8) 3-bromo - N - (1) - phenyl - 1 : 2 - anthraquinone - imidazole is condensed as in examples (1), (2) and (4) with 1-amino-4-benzoylamino-anthraquinone to produce a dyestuff dyeing cotton a purplish-grey shade.
Patent GB-964290-A (GB)
Title: Improvements in and relating to storage drums for use in winding wire and other longitudinally extending flexible materials
Inventor: HINDS RONALD
IPC: B65H67/04
Filed: 1962-03-28
Abstract: 964,290. Reels. BRITISH INSULATED CALLENDER'S CABLES Ltd. March 27, 1963 [March 28, 1962], No. 11949/62. Heading B8M. [Also in Division D1] A storage drum, on which wire is wound while a full reel is replaced by an empty reel, has at one end a rim 2 which includes two arcuate portions 4, 5 the surface of each portion having the form of the surface of a sector of a frustum of a cone, with the " cones " pointing in opposite axial directions. The drum is mounted with independent drive adjacent the reel with the rim 2 overlapping the flange of the reel. When the reel is fully wound the relative movement between a wire guiding device 21 (Fig. 7, not shown) and the reel is automatically or manually varied to move the wire on to rim 2 so that the wire slides down sector 4 till it reaches a slot 9 between the preferably overlapping sectors. The wire thus falls through the slot to be wound on to the drum. An opening 11 in the end of the sector 4 helps the wire to pass into the slot. Several turns of the wire are locked in a groove 15 in the barrel 1 and the wire is then wound about a localized point of the drum with the relative movement stopped. The length of wire between the reel and drum is cut, the drive to the wound reel interrupted, the reel stopped and removed, an empty reel inserted and the drive re-applied. The relative movement is resumed to bring the wire back on to the reel via another opening and slot between the other ends of the sectors 4 and 5. In similar manner to the removal of the reel the drum is removed so that the scrap wire can be cut away by inserting a knife into an axial slot 17, Fig. 2 (not shown), in the barrel.
Patent GB-494420-A (GB)
Title: Improved spectacles for use with gas masks
IPC: G02C5/22
Filed: 1937-04-27
Abstract: 494,420. Spectacle frames. RAPHAEL, O. P. April 27, 1937, No. 11961. [Class 97 (i)] . Relates to spectacles with metal frames, in which the sides are directly attached to the rims, and consists in placing the joint between side and rim so that it lies within the area bounded by the inner periphery of the rim, or, as shown in Fig. 2, within the space enclosed by an extension of said periphery at rightangles to the rim.
Patent GB-1495418-A (GB)
Title: Method of and apparatus for charging an accumulator battery
IPC: H02J7/00
Filed: 1975-03-21
Abstract: 1495418 Charging accumulators ELEKTRON FABRIK FUR PHYSIKALISCHTECH-NISCHE GERATE KERBER & CO 21 March 1975 ]27 March 1974] 12029/75 Heading H2H  Method and apparatus for charging an accumulator battery comprises sensing the battery voltage and when this attains a predetermined value and charging the battery further until a predetermined value is attained by the integral with respect to time of a quantity which rises and falls in value with that of the charging current, the integration commencing when the battery voltage attains its first sensed value. The quantity is the difference between battery voltage U 1  and a constant reference voltage U 2 . As shown, a timing circuit is employed wherein capacitor k charges at a rate dependent upon the voltage difference (U 1 -U 2 ) and is discharged via F.E.T. t 2  each time it reaches a predetermined value, a signal being emitted at each discharge. The frequency of these signals thus depends on the supply or charging voltage U 1  and the signals either drive a counter or indirectly a synchronous motor which cause charging to be stopped at a predetermined count or rotor position.
Patent GB-1149479-A (GB)
Title: Improvements in or relating to a rotary-drum apparatus
IPC: C14B1/00
Filed: 1968-03-12
Abstract: 1,149,479. Rotary-drum apparatus. MASCHINENFABRIK AUGSBURG-NURNBERG A.G. G. March 12, 1968 [Dec. 23, 1967], No. 12073/68. Heading C6C. [Also in Division D1] Rotary-drum apparatus for processing materials in a liquor, e.g. for depilating or tanning hides and skins, comprises a screening drum 1 rotatably mounted, e.g. on stub-axles 13 in a frame (not shown) within a bath 2 pivotable about an axis coinciding with the axis of rotation of the drum, which drum is provided with a peripheral opening through which materials can be charged into or discharged from the drum, and a slidable hatch 3 for covering the opening when materials are being processed, the hatch being holdable to the bath, as by releasable coupling means 8 comprising at least one radially slidable pin engageable with an aperture in the hatch, so that the drum together with the bath can be turned to a charging position, Fig. 1, or a discharging position, Fig. 6, in both of which positions the opening is uncovered. Stops 6 and 7 on the drum limit the sliding movements of the hatch, which is preferably provided, at its ends, with releasable devices 4 and 5 for locking the closed hatch to the drum, e.g. during processing, Fig. 3. As shown in Figs. 1 and 3, the bath 2 may be locked to the frame by a bolt-lock 10-9. The drum is rotated, e.g. anti-clockwise until the opening is covered by the hatch and then clockwise during processing and uncovering of the opening, by a motor (not shown) which is itself reversible, or drives the drum through reversible gears. Liquor may be fed into the bath through at least one pipe 11. The bath may be provided with heating jackets 12, and with one or more probes (not shown) for measuring the pH of the liquor.
Patent GB-1091429-A (GB)
Title: Stackable bottle carrying case
IPC: B65D1/24
Filed: 1966-03-18
Abstract: 1,091,429. Bottle crates. T. BOX. March 18 1966 [March 22, 1965], No. 12103/66. Heading B8P. A crate, preferably of moulded plastics, has on its external bottom surfaces areas or recesses for engaging the tops of bottles in an underlying crate, and integral ribs extending radially out wardly from the periphery of each area or recess the inner end portion of each rib adjoining the peripheries sloping towards the base, so that as a crate is pulled horizontally from the under lying crate the tops of the bottles cam with the sloping portions of the ribs to lift the upper crate slightly and prevent damage. Empty crates may be stacked with an inwardly spacec ridge on the bottom wall of a crate nesting within the top edge of a similar crate.
Patent GB-668032-A (GB)
Title: Improvements in or relating to illuminating devices
IPC: H05B41/22
Filed: 1950-05-16
Abstract: 668,032. Supply systems for space discharge apparatus. PHILIPS ELECTRICAL INDUSTRIES, Ltd. May 16, 1950 [May 19, 1949], No. 12181/50. Class 38 (iv). To compensate flicker in a gas discharge tube due to part of the discharge current draining through the auxiliary electrode during positive half-waves of the supply, two such tubes 1, 2, each having two activated main electrodes 8, 9; 10, 11 and one auxiliary electrode 12, 13 connected to one of the main electrodes 8, 11 and extending in the discharge space nearly to the other electrode 9, 10, are so connected to the supply terminals 5, 6 that during any half-wave one auxiliary electrode is positive and the other is negative. Various groupings of two pairs of tubes are described in modifications.
Patent GB-1032362-A (GB)
Title: Chromone derivatives
Inventor: FITZMAURICE COLIN
IPC: C07D311/24
Filed: 1962-03-30
Abstract: New compounds of formula <FORM:1032362/C2/1> and salts and esters thereof, where R2 and R3 are hydrogen or alkoxy (except both hydrogen or both methoxy) are prepared by condensing a 2-OH-3-R2-6-R3-acetophenone with diethyl oxalate in the presence of sodium hydride or sodium and cyclizing the intermediate either by heating to form the ethyl ester which is then hydrolysed or by reacting with acetic and hydrochloric acids to form the free acid. Pharmaceutical compositions comprise compounds I with carriers or diluents.  Oral, parenteral and topical (including aerosol) preparations inhibiting antigen-antibody reactions are mentioned.
Patent GB-810959-A (GB)
Title: Means for use in the winding of strip material
Inventor: GUEST LESLIE JAMES
IPC: H01G13/02
Filed: 1956-04-23
Abstract: 810,959. Feeding webs. ROTAX Ltd. April 17, 1957 [April 23, 19561. No. 12312/56. Class 100(1) A strip-tension device especially for use in a machine for coiling strips of metal foil and paper to form a non-cylindrical electric condenser, comprises fixed rods 16, 23 supporting the strip 11 and links 15 carrying a transverse stripengaging rod 18 forming a bight in the strip, the links 15 being connected by a spring 19, to an arm 14 pivoted about the same axis as the links 15 and actuated by a rotary cam 21 for varying the length of the bight in a manner related to the linear speed of the portion of strip approaching the winding former 10. The arm 14 is cranked and is pivoted with links 15 on the rod 16. The shaft 16 may carry a tubular roller, not shown, for engagement with the strip 11. A spring 22 holds a roller 20 on the arm 14 in contact with the cam 21. The cam 21 is driven through a chain sprocket 25 by a chain 27 driven from a pinion 31 on the shaft of the former 10. The former 10 comprises two similar halves a, b each having a flange c at one end. A shallow groove d is formed along both. halves to receive a removable strip clamping pin e. The narrow end of each half a, b engages a hole in the flange c of the other half to secure the halves together. When winding a multiplicity of strips. Fig. 3 (not shown), a strip-tension device is provided for each strip, the tensioning devices and strip supply rolls being arranged along arcs of circles concentric with the axis of the former 10.