baber/WOPTO huggingface dataset:
Patent GB-533354-A (GB)
Title: Process for the manufacture of new organic antimony compounds
IPC: C07F9/90
Filed: 1939-05-11
Abstract: 533,354. Organic antimonycompounds. SOC. DES USINES CHIMIQUES RHONEPOULENC., and GAILLIOT, P. L. May 11, 1939, No. 14087. [Class 2 (iii)] Organic antimony compounds of therapeutic value are prepared by neutralizing antimonic acid with an aliphatic polyhydroxyamine in which at least two hydroxyl groups are attached to the same carbon chain. The antimonic acid may be formed during the reaction, e.g., from antimony pentachloride. The compounds may also be prepared by reacting known amineantimoniates with a salt of the polyhydroxyamine whereby the amine component is replaced by the polyhydroxyamine, or by carrying out the foregoing processes with a derivative of trivalent antimony and oxidizing the product. The antimony compounds give stable solutions in the presence of sodium chloride. According to the examples : (1) A solution of antimony pentachloride in chloroform is added to a solution of N-methylglucamine in aqueous diethylamine; the chloroform is decanted and the aqueous solution poured into alcohol to precipitate the antimoniate of methylglucamine; (2) the same product is obtained by interaction of calcium antimoniate with N-methylglucamine oxalate ; or (3) by replacing the antimony pentachloride in the process of (1) by the trichloride and oxidizing the product in solution with hydrogen peroxide; (4) galactamine and glucamine antimoniates are formed when the process of (1) is carried out with the use of galactamine or glucamine in place of N-methylglucamine ; (5) the antimoniate of aminopropanediol is prepared by neutralizing antimonic acid with the amino-alcohol.
Patent GB-941654-A (GB)
Title: Improvements in or relating to electro magnetic switching devices
IPC: H01H67/30
Filed: 1960-04-22
Abstract: 941,654. Telephone exchanges. WESTERN ELECTRIC CO. April 22, 1960 [Oct. 22, 1959], No. 14196/60. Heading H4K. [Also in Divisions H1 and H2] Switching devices employing members having two stable magnetic states which may be changed by current pulses to cause a switching operation as described in Specifications 870,906 and 941,653, are arranged in co-ordinate array in telephone systems. In Figs. 1 and 4 a pulse in either set of windings 17 or 18 controls the remanent states of members 13, 14 or 38 and the contacts remain open. If both windings 17, 18 are pulsed the remanent states are controlled by the larger a coils and the contacts are closed. Fig. 5 (not shown), is a diagrammatic representation of a matrix array of the switching devices arranged so that a pulse along one line and one column closes the switch at their junction and ensures that all other switches in the line and the column are not closed. Fig. 6 shows a number of matrix blocks 60 ... 63 connected to diode selection matrices 68, 69 &c. controlled by semi-conductor tree selectors (such as 76).
Patent GB-1430629-A (GB)
Title: Apparatus for local treatment of yarns
IPC: B05C5/02
Filed: 1973-03-23
Abstract: 1430629 Space-dyeing of yarns OMNIUM DE PROSPECTIVE INDUSTRIELLE SA 23 March 1973 [28 March 1972] 14252/73 Heading B6C [Also in Division D1] Apparatus for space-dyeing yarns comprises a nozzle 8 mounted on a support rod 9 in a chamber 3, means comprising wind-up bobbin 15 and drive motor 16 for continuously feeding a yarn 1 through chamber 3 and below nozzle 8 and means including lever 10, link rod 11, eccentric cam 12 and motor 13 for reciprocating the nozzle 8 so that a jet of dye liquor from the nozzle repeatedly intersects the yarn 1 being dyed, the dyeing pattern produced on the yarn 1 being variable by continuously varying the speed of travel of the yarn through variation 17 and/or the speed of reciprocation of the nozzle through variation 14. Excess dye liquor 4 is fed back to nozzle 8 from the chamber 3 by conduits 5 and 6 and pump 7. Conduit 6 is connected to the nozzle by flexible pipe 6a. As illustrated the speed of travel of the yarn 1 through chamber 3 may additionally be varied during treatment by means of displaceable guide 19 mounted between fixed guides 18 and 20 and reciprocatable by means of pivoting link rod 21, wheel 21a and cam 23 connected via variator 25 to a drive motor 24. Variators 14, 17 and 25 may be operated to cause periodic variations in the speed of travel of yarn and/or nozzle so that a repeating pattern is produced on the yarn. More than one yarn may be treated simultaneously when a plurality of nozzles are fixed to a single reciprocating support rod (Fig. 2, not shown). Fig.3 (not shown) illustrates drive mechanism for apparatus in which a plurality of nozzles are mounted above the path of a single yarn to treat it successively, e.g. with different coloured dyes.
Patent GB-218990-A (GB)
Title: Improvements in and relating to rolling tracks for ships' gun turrets
IPC: F41A27/16
Filed: 1924-06-13
Abstract: 218,990. Schneider et Cie. July 9, 1923, [Convention date]. Mounting.-The balls B in a ball-bearing for a ship's gun turret engage the races a, c at points b<1>, b<2> situated on an inclined ball diameter y-y instead of on the vertical ball diameter x-x as is usual. This arrangement prevents the recoil clearance D, usually provided between the rims on the fixed and movable parts A<1>, C from being taken up during rolling movements of the ship. The races a, c are struck from centres on the line y-y and the balls B are carried as usual in a cage E furnished with rollers e running on the fixed track A.
Patent GB-496272-A (GB)
Title: Improvements in and relating to automatic feed water regulators
IPC: F22D5/18
Filed: 1937-05-25
Abstract: 496,272. Feedwater regulators ; ejectors. CANTIERI RIUNITI DELL' ADRIATICO, and LOMGHI, C. May 25, 1937, No. 14522. [Class 135] [Also in Group XXVIII] An automatic feedwater regulator for steam boilers has the feed valve actuated by a power device connected to an ejector supplied with water or steam through a dipping pipe from an auxiliary reservoir communicating with the boiler. The ejector is designed so that it only creates sufficient suction to operate the power device when the lower end of the dipping pipe is above the water level permitting steam to pass through the ejector. The power piston 21 is coupled by a link 23 to a see-saw lever 28 loaded by four springs 54 arranged between an adjustable abutment 55 and an abutment 53 having a knife edge connection with the lever. The lever is mounted on a shaft turning in ball bearings and provided with a toothed bevel quadrant co-operating with a similar quadrant on the spindle of a ported tubular rotary cylindrical valve working in a ported liner. The lever works in a guide 29 provided with a series of holes whereby the lever may be secured against movement. The ejector 14 is connected to the cylinder 20 by a pipe 19 and to the dipping pipe 7 by a pipe 10 controlled by a valve 12. The dipping pipe is housed in an auxiliary reservoir 6 connected to the steam generator above and below the normal water level by pipes 4, 5 fitted with adjustable throttles 2, 3, and to the pressure pipe of the feed pump by a pipe 11 whereby the auxiliary reservoir is supplied with clean water. A tubular filter 8 is arranged around the dipping pipe. The outlet from the feedwater valve is fitted with a non-return valve with an adjustable stop. The ejector is fitted with a stop valve 12 and with a relief valve and alarm whistle 18 which comes into operation in the event of the pressure rising abnormally consequent on the ejector nozzle being obstructed. By closing the stop valve and removing the relief valve a wire may be inserted to clear the nozzle 13.
Patent GB-442853-A (GB)
Title: Improvements in the manufacture of titanates from titanium ores rich in iron
IPC: C01G23/00
Filed: 1934-05-15
Abstract: In the working up of titanium ores rich in iron such as ilmenite, the ore is admixed with sufficient carbon for the reduction of the iron oxide and any silica present, and with sufficient lime or calcium carbonate and caustic soda or sodium carbonate to convert the titanium oxide into titanates of the composition CaO.TiO2.Na2O.2TiO2 or CaO.TiO2.Na2O.3TiO2, whereby on smelting the mixture at temperatures of 1000--1400 DEG  C., the titanate obtained is low in iron.  If sufficient carbon is used to reduce also a part of the titanium oxide to Ti2O3 titanates having the ratio CaO : Na2O : Ti = 1 : 1.1 : 7.1 may be obtained. In the claims, reference is made to the use in the mixture of lime &c. and caustic soda &c. in the proportions 1 CaO to 4--6 NaOH. The low melting-point of the titanate enables it to be separated readily from the reduced iron.ALSO:In the reduction of the iron content of titanium ores such as ilmenite, the ore is admixed, prior to smelting at 1000-1400 DEG  C., with sufficient carbon for the reduction of the iron oxide and any silica present, and with sufficient lime or calcium carbonate and caustic soda or sodium carbonate to convert the titanium oxide into titanates of the composition CaO.TiO2.Na2O.2TiO2 or CaO.TiO2. Na2O3TiO2.  The low melting point of the titanate enables it to be separated readily from the reduced iron. If sufficient carbon is used to reduce also a part of the titanium oxide to Ti2O3 titanates having the ratio CaO : Na2O : Ti = 1 : 1 : 1 : 7.1 may be obtained.  In the claims reference is made to the use in the mixture of lime &c. and caustic soda &c. in the proportions 1CaO to 4-6 NaSH.
Patent GB-351668-A (GB)
Title: Improvements relating to positively driven bobbins
IPC: B65H75/30
Filed: 1930-05-13
Abstract: 351,668. Bobbins. WILSON & CO. (BARNSLEY), Ltd. and WILSON, W. B., Beevor Works, GREENWOOD, A., 6, Coniston Road, and BROWN, W., 176, Doncaster Road, all in Barnsley. May 13, 1930, No. 14658. [Class 120 (iii).] Positively-driven bobbins are provided with rubber or raw hide insertions A in which the driving - slots a are formed. The insertion may be secured against rotation by being of non-circular shape, or by means of a metal ring C having two flanges c, c<1>, or may be permanently or detachably fixed by adhesive or screws, or may be pressed into an undercut recess. The rubber or raw hide may be reinforced by metal or other powder or by brass or copper wire. As shown in Fig. 5, the pad A is pressed in and is prevented from rotating by being non-circular, and the slots a extend only partly through the pad.
Patent GB-386855-A (GB)
Title: Improvements in or relating to the production of sound records
Filed: 1932-05-24
Abstract: Sound-records are formed of a composition comprising camphor, as a plasticizer, and a cellulose acetate of at least 55 per cent acetyl value determined as acetic acid, or other cellulose ester or ether esterified or etherified to a corresponding degree. Amongst the organic derivatives of cellulose which may be employed, either singly or in admixture with each other, are cellulose acetate, cellulose formate, cellulose propionate, cellulose butyrate and ethyl cellulose, methyl cellulose and benzyl cellulose.  The cellulose acetate may be prepared, for example, by the preparation of a primary solution of cellulose acetate by the acetylation of cellulose with acetic anhydride and sulphuric acid in the presence of acetic acid, which is subjected to a hydrolysing or ripening treatment and the ripening interrupted when the desired acetyl value is attained. Alternatively, the primary cellulose acetate may be precipitated directly by the addition of a large amount of water to the primary solution and, if desired, ripened, for example by digestion with hot water.  Specification 222,167, [Class 40 (ii), Phonographs &c.], is referred to.ALSO:Sound records are formed of a composition comprising camphor, as a plasticizer, and a cellulose acetate of at least 55 per cent acetyl value determined as acetic acid, or other cellulose ester or ether esterified or etherified to a corresponding degree. Amongst the organic derivatives of cellulose which may be employed, either singly or in admixture with each other, are cellulose acetate, cellulose formate, cellulose propionate, cellulose butyrate and ethyl cellulose, methyl cellulose and benzyl cellulose.  The cellulose acetate may be prepared, for example, by the preparation of a primary solution of cellulose acetate by the acetylation of cellulose with acetic anhydride and sulphuric acid in the presence of acetic acid, which is subjected to a hydrolysing or ripening treatment and the ripening interrupted when the desired acetyl value is attained. Alternatively, the primary cellulose acetate may be precipitated directly by the addition of a large amount of water to the primary solution and, if desired, ripened, for example by digestion with hot water.  The recording efficiency of the composition is stated to be greater when the proportion of camphor is large.  Where cellulose acetate is employed the proportion of camphor may vary from 1-30 per cent.  Other well-known plasticizers may be employed in addition to the camphor, and if desired other ingredients may be incorporated, such as filling materials, dyestuffs and pigments, e.g. iron oxides, china clay, rotten stone, talc, gypsum, cotton flock and lampblack. Specification 222,167, [Class 70, Indiarubber &c.], is referred to.
Patent GB-162203-A (GB)
Title: Improvements in or relating to baskets, hampers, and the like wickerwork
IPC: B65D6/08
Filed: 1920-05-29
Abstract: 162,203. Andrews, E. S., and Andrews, E. H. May 29, 1920. Baskets; hampers. - A rectangular basket hamper, &c., having handles at its ends, is strengthened by a pair of U-shaped reinforcing- bands a, of flat soft metal, which are interlaced in the wickerwork at the bottom and sides of the basket &c. and have their free ends e twisted around the border d thereof in two or more convolutions; the bands are arranged in the sides so that they take the place of two of the usual stakes c. Damaged baskets may be similarly strengthened. Specifications 14513/93 and 5678/99 are referred to.
Patent GB-582825-A (GB)
Title: Improvements in or relating to turbines
IPC: F01D11/18
Filed: 1944-08-02
Abstract: 582,825. Elastic-fluid turbines. WATSON, F. (Aktiebolaget Ljungstroms Angturbin). Aug. 2, 1944, No. 14725. [Class 110 (iii)] In a gas or steam turbine, the rotor blades are formed, at least on the high pressure side of the turbine, of a material having high strength at operating temperatures, and the rotor and the guide blade carrying member, such as the turbine housing, are made of a material having a lower coefficient of expansion and a higher heat conductivity than the rotor blade material. The rotor blades may be of austenitic steel containing a high percentage of nickel and chromium and preferably also containing tungsten ; the rotor and housing may be of martensitic steel containing 0.75 to 2.5 per cent. of chromium and 0.3 to 1.0 per cent. of molybdenum. The rotor 10 comprises discs 12, having an inner axial passage 14, and welded together as at 16, 18. The shaft 34, which is provided with radial and thrust bearings 35 is connected to the rotor through a conical member 32 formed integrally with the shaft and with a disc 12. The shaft 44, which is journalled in a bearing 42, is similarly connected to the rotor. Packing is provided at 36, 38, 60. Cooling medium, such as air from the air compressor supplying air for-combustion, may be supplied via passage 46, annular chamber 48, orifices 50, and channels 51, 52 to a space 54, from which it flows via passages 22 to each rotor space 20 in turn, finally entering the passage 14, from which it flows via passages 56, 58 into passage 30 to join the current of driving fluid. The guide blades 26 are carried by rings 27, which are of greater axial width than the guide blades in order to protect the housing 28 from the hot working medium, and may be made of the same material as the rotor blades. The inlet may be provided with a sheet metal lining 31. A further embodiment is described in which the rotor is made with an integral blade carrier, suitable passages for cooling being bored in the solid rotor. Baffle inserts may be provided to reduce -the area of the rotor passage so as to increase the rate of flow of cooling medium.
Patent GB-539813-A (GB)
Title: Improvements in hand-actuated vehicles
IPC: B62M11/00
Filed: 1939-05-18
Abstract: 539,813. Hand-propelled vehicles. OLLAGNON. P. May 18, 1939, Nos. 14848 and 14849. Convention dates, May 19, 1938, and April 20, 1939. [Class 136 (ii)] A vehicle is propelled by means of oar-like arms, each movable about a horizontal and a vertical axis and having a roller loosely mounted at its free end in a substantially vertical plane passing through the vertical axis of the corresponding arm, in such a manner that the arms act on the ground by means of the rollers similarly as the oars of a boat act on water. In the form shown in Figs. 1 and 2, a frame A is supported on two rear wheels B and a front selfsteering wheel C of castor type, and is provided with a standard G, at the top of which is a bracket F for the attachment, by means of vertical pivots f' and horizontal pivots f<SP>2</SP>, of oarlike arms J carrying ground-engaging rollers K arranged in a vertical plane passing through the pivots f'. In the forward or inoperative stroke the rollers K are lifted from the ground. In another form, each propelling arm comprises a first portion pivoted about a vertical axis, and a second portion pivoted about a horizontal axis at the free end of the first portion, the second portion carrying the ground-engaging roller at its lower end and extending upwardly beyond its pivot to support the actuating-handle.
Patent GB-1511467-A (GB)
Title: Closed-loop mixture control system for internal combustion engine using errorcorrected exhaust gas sensors
IPC: F02D41/14
Filed: 1976-04-13
Abstract: 1511467 Automatic control of engine exhaust NISSAN MOTOR CO Ltd 13 April 1976 [22 April 1975 30 April 1975 24 June 1975] 15008/76 Heading G3R [Also in Division G 1] The air/fuel ratio supplied to an I.C. engine is controlled in response to two exhaust gas sensors which have different output characteristics, the two outputs being connected to means whereby an error due to a change in performance of the sensors is eliminated. In a first embodiment the sensors (which are not specified) are responsive to oxygen and carbon monoxide or hydrocarbon concentration respectively and the output of one decreases (curve a, Fig. 5a) while the other increases (curve b) with increasing air/fuel ratio. Their outputs are adjusted by variable gain amplifiers and compared, the adjustment being such that they are equal at a desired A/F ratio. Departure from this ratio produces a positive or negative signal which is applied to a PI controller to modulate the width of separately generated pulses which energize a fuel injector or an adjustment in an undisclosed carburetter, Fig. 1 (not shown). The sensor outputs may change to curves a', b' due to changing operating temperature, but they are still equal at the desired ratio, so no error arises from this cause. To counteract the effects of ageing the sensor outputs may be taken via potentiometers whose sliders are mechanically coupled to an odometer. In a second embodiment the sensor outputs change in the same direction, but they have the gradual and step-like characteristics shown at a and b, Fig. 6. To eliminate errors in this case the value of a is sampled whenever b makes an abrupt change (which occurs at the desired stoichiometric value for the air/fuel ratio), this value being stored on a capacitor. The stored value is compared with the instant value and the result applied to the controller of the first embodiment Fig. 2 (not shown). A change in characteristic to a' (which would be gradual) affects the stored and instant values equally, so that any output from the comparator is due to a change in air/fuel ratio only. Ageing may be compensated as in the first embodiment. The exhaust system includes a catalytic converter which may be of the three-way type.
Patent GB-419755-A (GB)
Title: Improvements in and relating to loudspeakers
IPC: H04R9/04
Filed: 1933-05-24
Abstract: 419,755. Loud-speakers. CAMPBELL, G., and MAGNAVOX (GREAT BRITAIN), Ltd., Tariff Road, Tottenham, London. May 24, 1933, No. 15016. [Class 40 (iv).] The flexible coil centring spider 11 of a moving coil loud-speaker or like electroacoustic apparatus is secured to the cone housing 14 by means of lugs 15 secured to or formed integral with the housing, the extremities of the lugs being bifurcated at 17 and provided with shoulders 18 on which the spider rests. A fibre washer 19 and a metal washer 20 are provided as shown on opposite sides of the spider which is secured in position by means of a tool resembling a pair of pliers, one jaw of which engages a square aperture 21 in the housing whilst the other jaw is of V-section and is inserted between the bifurcations to turn them over. The cone housing is of magnetic material and is clamped between the front polepiece 22 and the remainder of the magnetic structure. A method of assembling the loud-speaker is described which includes centring the moving coil by means of a gauge before the outer ends of the spider are secured to the cone housing.
Patent GB-836572-A (GB)
Title: Improvements in electromagnetic switches
IPC: H01H50/04
Filed: 1957-05-13
Abstract: 836,572. Electromagnetic switches. ARROW ELECTRIC SWITCHES Ltd. May 13, 1957 [June 14, 1956], No. 15077/57. Drawings to Specification. Class 38 (5). The coil and core of an electromagnetic switch can be removed by detaching the core from a support-plate and swinging the coil, core and armature about a pivot which mounts the armature on a movable contact carriage. The invention is described in its application to the switch of Specification 836,571. Specification 836,575 also is referred to.
Patent GB-1300334-A (GB)
Title: Semi-conductor arrangement and method of production
IPC: H01L23/495
Filed: 1970-03-31
Abstract: 1300334 Semi-conductor devices SEMIKRON GES FUR GLEICHRICHTERBAU UND ELEKTRONIK mbH 31 March 1970 [1 April 1969] 15121/70 Heading H1K A semi-conductor arrangement, particularly for use in rectifier circuits, comprises a plurality of conductive members formed from a strip of conductive material, so that each member forms at least one conductor portion and contact portion, and a semi-conductor wafer contacted by a pair of the members. The contact portion 2a of one of the members, 2, is initially formed from a recess 1c of the contact part la of the co-operating member 1 by cutting or etching, and subsequently the intermediate port 2d of member 2 is bent at right angles to the plane of the strip so as to form a clamp between contacts parts 2a and la for the semi-conductor wafer 3 as shown. The wafer 3 may be soldered between the contact portions and subsequently encapsulated. By rearrangements of the members including members with a plurality of conductor and/or contact portions, bridge rectifiers, star design rectifiers &c. may be constructed. The strip may be of copper, brass, iron or an iron-nickel-cobalt alloy.
Patent GB-1375367-A (GB)
IPC: B29D30/50
Filed: 1971-05-15
Abstract: 1375367 Making pneumatic tyres DUNLOP Ltd 4 May 1972 [15 May 1971] 15170/71 Heading B7C  A bead for use in a pneumatic tyre and adapted to have a ply reinforced with steel cords turned round it is formed by providing a core 1 of coiled or strip metal, covering the core with unvulcanized rubber 2 having a plasticity of at least 80 lb. ft. at 140‹ C., cold pressing the bead to a circular shape, applying a zinc stearate in methylated spirits lubricant 4 thereto and wrapping the bead with textile fabric 5. After the tyre has been built and vulcanized the hardness of the rubber covering should be in the range 85 BS to 100 BS. The rubber is provided with a filler of low particle size silica.