baber/WOPTO huggingface dataset:
Patent GB-699666-A (GB)
Title: Improvements relating to the treatment of boiler feed water
Inventor: BLIGHT FRANK CHARLES
IPC: C02F1/20
Filed: 1951-09-12
Abstract: 699,666. Purifying water by ion-exchange. PERMUTIT CO., Ltd. Aug. 14, 1952 [Sept. 12, 1951], No. 21480/51. Class 46 In a boiler feed-water plant all the makeup water supplied to the boiler is passed through an ion-exchange material capable of removing substantially all the free carbon dioxide contained in the water and a surge tank is connected to the pipe leading to the boiler from the ion-exchange material and is baffled or otherwise constructed so that the bulk of the water entering and leaving it as the demand for makeup water is greater or less is kept out of contact with the atmosphere. Raw water is fed through hydrogen -.ion - exchange material in a tank 11, anion exchange material in a tank 12, and a degasifying apparatus 14, which may be of the kind in which the water flows in countercurrent with air and the greater part of the carbon dioxide dissolved in the water is removed. The water thus treated is withdrawn from a sump 15 by a pump 16 and delivered to a tank 17 containing a mixture of anion-and cation-exchange materials, preferably as described in Specification 553,233. The anion-exchange material is preferably a polymerized and cross-linked styrene resin which has been halo-alkylated and then aminated with a tertiary amine and may advantageously be made as described in Specification 694,778, [Group IV(a)]. The cation-exchange material is for the removal of ,ammonia. Silica is also removed. in the tank 17. The water leaving the tank 17, after passing through a pipe 18, flows through either a pipe 19 and a de-aerator 24 to the boiler (not shown) or a pipe 20 to an open tank 21 fitted with baffles 22 arranged so that water entering at the bottom has to take a sinuous path to reach the exposed top surface. An overflow pipe 23 leads back to the sump 15.
Patent GB-1260706-A (GB)
Title: Improvements in or relating to transducer systems
IPC: G11B5/584
Filed: 1969-04-28
Abstract: 1,260,706. Automatic control of position. INTERNATIONAL BUSINESS MACHINES CORP. April 28, 1969 [April 29, 1968], No.21527/69. Heading G3R. [Also in Division G5] A support carrying a row of data transducers 24 has also two servo transducers 26, 28 cooperating with servo tracks 12, 14 recorded on a medium 18 to produce a control signal for positioning the support so that a particular one of the data transducers is correctly disposed in relation to a particular one of several data tracks. The transducer may be magnetic or photo-electric and the medium may be drum, disc or tape. Initial track selection is made by an undisclosed coarse position control 34 and the invention maintains the position of the transducers in relation to the selected tracks. Two servo transducers are used at opposite ends of the support bar to compensate for changes in its length due to temperature and humidity, and their outputs are connected to the ends of a voltage divider 36 whose individual resistance values correspond to the spacing of the data heads. By selecting the appropriate tapping point, e.g. 50, by a switch 44 the respective servo transducer outputs are "weighted" so that the selected data transducer, e.g. 48, is accurately aligned with its track. To correct for spacing errors in manufacture a further, fixed, bias may be applied from a resistance bridge network 60 or from a printed circuit board Fig.2 (not shown) in which resistors are inserted or links removed. The servo tracks are recorded with square waves, all of the same frequency, adjacent tracks being phase displaced by 90 degrees, and periodically there is a synchronizing pulse, in phase on all servo tracks, at which point the square wave is phase displaced 180 degrees on each track Fig. 3 (not shown). This arrangement is to eliminate the effect of low frequency noise which may pass filters 30, which are connected to comparison circuits 32, the outputs of which are zero when its associated transducer is aligned between two servo tracks. The comparison circuits Fig. 5 (not shown) each comprise a flip-flop controlled by an oscillator at the square wave frequency (and synchronized therewith by the synchronized pulses) which gates alternate pulses from the transducer to separate peak detector circuits. Hence, these detect the level of the signals from respective tracks on either side of the transducer, any difference between them (because the transducer is nearer to one track than the other) producing a control signal. Noise produces a bias which changes polarity after each sync pulse so that the average effect of this is zero.
Patent GB-919352-A (GB)
Title: Improvements in or relating to spinning and twisting machines
Inventor: JUN BUEHLER HERMANN DIPL ING
IPC: D01H5/68
Filed: 1959-06-23
Abstract: 919,352. End-catchers for spinning &c. machines; cleaning machines. BUHLER & CO. A.G., HERMANN. June 23, 1959 [Aug. 7, 1958], No. 21560/59. Classes 120 (2) and 120 (3). An end-catcher comprises a central housing 8 with extensions 7 each with a slot extending across a number of working positions of a drawing mechanism, and suction-conduits 12 in the slots, the inlet of each conduit being located in the immediate neighbourhood of the lower delivery rollers 4 of a number of working positions. There is a slot between each pair of roller-supports 3 and a conduit for each slot: each conduit has a flared inlet and is supported by a block 13 and secured by pins 15 in clips 17 secured to supports 3 in such a way that it is centrally-arranged in the corresponding slot and its inlet is tangential to the lower rollers. The extension has a stepped enlargement at 20 and a hinged part 21 operable by a lever so that the extension, two-thirds open in normal working, can be completely closed or opened when it is desired to blow compressed air through the passages to clear them. The housing 8 terminates at a fan and filter through which clean air is returned to the atmosphere. In other forms, the housing extends downwardly to a fan and filter in the base of the frame, and additional extensions such as 7 are provided to open near the spindles. The conduits may be of uniform cross-section, conical or stepped.
Patent GB-681434-A (GB)
Title: Improvements in or relating to the recovery of aromatic hydrocarbons from mixtures containing the same
Filed: 1949-08-19
Abstract: <PICT:0681434/III/1> A given aromatic hydrocarbon, e.g. toluene, or a mixture of close-boiling aromatic hydrocarbons, is separated from hydrocarbon mixtures containing more than 50 per cent of aromatics and a substantial proportion of non-aromatics having normal boiling points 20 DEG F or more higher than the normal boiling point of the given hydrocarbon, by adding a non-aromatic hydrocarbon diluent having a boiling range between the normal boiling point of the given hydrocarbon and 20 DEG F below it, the amount of diluent added being such that the resulting mixture contains about 20 to 50 per cent of aromatic hydrocarbons, submitting the mixture to fractional distillation to produce a distillate of narrow boiling range which contains the given hydrocarbon but is substantially free from non-aromatics normally boiling 15 DEG F or more above the normal boiling point of the given hydrocarbon, subjecting that distillate to extractive distillation with a high-boiling solvent having preferential solvent power for aromatics over non-aromatics, and recovering the given hydrocarbon from the extract.  The raffinate produced in the extractive distillation is preferably recycled as diluent for the first step of the process. A hydrogenated mixture of a 190 DEG /290 DEG F. thermal aromatic fraction and a 340 DEG /390 DEG F catalytic gasoline, containing 25 per cent toluene, was pumped at the rate of 3,580 barrels per day through line 11 into fractionator 14 which contained 60 plates; and a C6/290 DEG F straight run hydrocarbon fraction (the bulk of which had a boiling range below the boiling point of toluene) was pumped through line 17 into the lower section of the fractionator at the rate of 1,465 b.p.d.  A fraction more volatile than the toluene was withdrawn overhead, while a fraction containing 25 per cent toluene was taken off from the bottom of the column at 300 DEG F (24 p.s.i.g.).  The latter was fed through line 19 into fractionator 20 which also contained 60 plates.  A fraction containing 50 per cent toluene, the remainder being relatively low boiling non-aromatics, was withdrawn at 224 DEG F (3 p.s.i.g.) from the top of fractionator 20, and was subjected to extractive distillation in fractionator 24 using refined cresylic acid (approx. boiling range 200 DEG -220 DEG C) as solvent. The extract withdrawn from the base of fractionator 24 was distilled in column 31 to give an overhead product comprising 99.5 per cent toluene. A portion or all of the raffinate from fractionator 24 may be recycled through line 27 to fractionator 14 and/or line 19.  If desirable, the raffinate may be separated into a lighter and a heavier fraction in fractionator 29, and either fraction may be recycled.  The solvent withdrawn from the base of column 31 is returned to fractionator 24 through line 35.  Other suitable solvents for the extractive distillation are phenol, furfural, nitrobenzene, sulfolane, and alkyl sulfolane.  Specifications 563,930 and 606,799 are referred to.
Patent GB-482942-A (GB)
Title: Treatment of cellulose fabrics
IPC: D06Q1/08
Filed: 1936-08-05
Abstract: Fabrics composed of natural or regenerated cellulose are treated with aqueous caustic alkali of preferably not less than 11 per cent strength, followed by treatment with about 1/5 to 1/3 mols. per cellulose unit of a halogen-free a b -alkylene oxide, e.g., ethylene oxide, or a hydroxy derivative thereof, e.g., glycide, and are thereafter subjected to a mechanical finishing process, e.g., lustring, calendering, schreinering or beetling.  Suitable solvents for the etherifying-agent are carbon tetrachloride and a brine solution.  A number of examples are given.
Patent GB-1106076-A (GB)
Title: Stable, aqueous insulin solutions
Inventor: STEWART GEORGE ALEXANDER
IPC: C07K14/625
Filed: 1964-05-26
Abstract: A stable, pharmaceutically acceptable, aqueous solution of insulin having an adjusted pH of between 7 and 8 comprises beef insulin which has: 1) a protaminase content causing less than 15% w/w loss at 37 DEG C in 30 days when the insulin is converted into a protamine-containing isophane insulin suspension; 2) an optical density (absorbance) corrected (as defined) to a manifold diluted sample of less than 0.5 as a 1% acid solution in a 4 cm. cell at 396 mm  and, 3) an optical density of less than 0.03 at 400mm  when measured as a 40 I.U./ml. solution in a 1 cm. cell at a pH of 7.4 after standing at 5 DEG C. for 8 days with an instrument adapted to exclude scattered light.  Conventional purification methods may be used to obtain insulin of the desired purity.
Patent GB-615532-A (GB)
Title: Improvements in and relating to textile spinning and twister spindles
IPC: D01H7/06
Filed: 1945-08-24
Abstract: 615,532. Spinning and twisting spindle arrangements. SACO-LOWELL SHOPS. Aug. 24, 1945, No. 21745. Convention date, Jan. 21, 1941. [Class 120(ii)] A spindle arrangement for spinning and twisting machines of the kind including a non-rotative spindle 2, a sleeve 5 fitted on to an extension 17 of a whirl 12, and two bearings 6, 7 has the upper bearing 6 and preferably the lower bearing 7, also, selfaligning. The spindle 2 has fixed to it a bolster 3 with a flange a supported on an extension b of a base member 4. The bolster 3 is made slightly smaller than the internal bore of the base member 4 to allow a slight swinging movement of the spindle 2 but is keyed to prevent relative rotation. A sleeve 10 pressed on to the lower end of the spindle 2 has an external diameter smaller than that of the internal bore of the part of the base member 4 in which it is suspended. The bearings 6, 7 may be of ball, needle or other suitable type. An oil cup 14 is fitted on to the top of the spindle and has a felt or like absorbent pad 15 through which oil seeps to a hole 16. Specification 539,976 is referred to.
Patent GB-1137074-A (GB)
Title: Process for removing calcium from phosphoric acid
IPC: C01B25/234
Filed: 1966-05-17
Abstract: 1,137,074. Purification of phosphoric acid. DOW CHEMICAL CO. 17 May, 1966 [21 May, 1965], No. 21795/66. Heading C1A. Aqueous phosphoric acid solution is treated for the removal of calcium therefrom by extracting the solution with an organic solvent not soluble in water to more than 10 wt. per cent of the mixture, and treating the thus-obtained organic solution of phosphoric acid with a cation-exchange resin which is a sulphonated copolymer of styrene and divinylbenzene, e.g. " Dowex 50 " (Registered Trade Mark). Aqueous phosphoric acid or sodium phosphate are then recovered by washing the organic solution with water or sodium hydroxide solution respectively. The organic solvent may be a trialkyl phosphate, an aliphatic alcohol, cyclohexanol, methylcyclohexanol, methylcyclohexanone, an ester, an ether or an amide, and may optionally be admixed with a diluent such as toluene, " Varsol " (Registered Trade Mark), benzene, decane, xylene, or kerosene. The process is especially suitable for the treatment of phosphoric acid obtained by treating phosphate rock or ore with a mineral acid such as HCI, H 2 SO 4  or HNO 3 .
Patent GB-728235-A (GB)
Title: Improvements in punching and other machines
Inventor: TAYLOR PAUL H
IPC: B21D28/24
Filed: 1952-08-29
Abstract: 728,235. Liquid springs. WALES-STRIPPIT CORPORATION. Aug. 29,1952, No. 21802/52. Class 108 (3). [Also in Group XXII] A punching or other machine having means for storing and releasing compressed liquid energy comprises a member reciprocable to effect a working stroke, a cylinder aocommodating a body of liquid and located wholly at one side of the said member and a piston within the cylinder connected to said member so that the liquid is compressed during the working stroke and thereafter expands to restore the member to its original position. As applied to a subpress punching machine, a punch 21 co-operating with a die 22 carries an offset piston 31 working in a cylinder 30 with a liquid reservoir 34. A stripper 29 actuated by a piston 32 is located on the punch by a ball 24 engaging grooves 25, 26 on the punch and stripper. On the downstroke of the press the punch is depressed and the stripper is lowered by the pressure of the liquid. When pressure is released from the punch the pressure of the liquid first raises the punch alone and later, through the ball 24, raises the stripper also. Specification 721,400 is referred to.
Patent GB-996038-A (GB)
Title: Improvements relating to field drainpipes
Inventor: HIGGINS ANTHONY
IPC: E02B11/00
Filed: 1960-05-31
Abstract: 996,038. Pipes and tubes. WM. HIGGINS & SONS (MANCHESTER) Ltd. June 1, 1964 [May 31, 1963], No. 21914/63. Heading F2P. A plurality of drainpipes lying side by side are connected together at their area of mutual contact, such that the bond between adjacent drainpipes is sufficient for any one pipe to bear the weight of the remainder but small enough of separation of one pipe from the other when required. Terracotta pipes 1, 2, 3, 4, 5, preferably circular or hexagonal in shape, are joined along contacting faces the areas of such joints being limited by incisions 7, 8. The pipes may be made by extrusion, with metal straps or knives placed in the extrusion orifice to form the incisions.
Patent GB-219271-A (GB)
Abstract: 219,271. Zuberbuhler, A. April 24, 1923. Closed solid-fuel stoves; grates; dampers; air, supplying for combustion.-A stove having two superposed combustion chambers 2, 3 and a jacket 13 for supplying heated air to the space between them is adapted for continuous operation in such a manner mat the direction of flow of the air through the fuel is opposite to the direction in which combustion proceeds. The stove shown in Fig. 1 is provided with a reversible fuel-container comprising a lining 6 in the form of a rotary drum arranged within a jacket 18 having a fixed grate 11 at the bottom and an aperture 19 at the top communicating with the upper chamber 2. The fuel in the chamber 3 is ignited at the top by kindling fuel in the chamber 2 and burns downwards, air being supplied through the, grate 11, whilst heated secondary air is supplied through the jacket 13 to the space between the chambers 2 and 3. As each charge is consumed the chamber 2 is re-filled and inverted, the fresh charge being thus ignited at the top by the remains of the preceding charge, and combustion taking place downwardly as before. Secondary air may be supplied, preferably under damper control, from the jacket 13 to the chimney flue 9. The stove shown in Fig. 2 is provided with movable and fixed grates 10, 11, the former having ports 26 which admit air to the jacket 13 and the area of which is adjusted bv movement of the grate. A rotary damper 23 controls simultaneously passages 22, 24 leading respectively from the chambers 2, 3 to the flue 9. The first charge in the chamber 3 is ignited by material placed in the chamber 2, combustion proceeding downwardly and air for combustion passing upwardly through the grates 10, 11. The gases, after being consumed in the chamber 2 with secondary air from the jacket 13, pass by the passage 22 to the fiue 9. When the first charge is consumed, the next charge is ignited at the bottom bv the remains and combustion proceeds upwardly. At the same time the damper 23 is moved to the position shown, thus causing a down-draught in the chamber 3, air being supplied at the top from the jacket 13 and the gases being withdrawn through the flue 24. Specification 196,632 is referred to.
Patent GB-1501471-A (GB)
Title: Swash plate type compressor
IPC: F04B27/10
Filed: 1975-05-21
Abstract: 1501471 Reciprocating compressors JAPAN STEEL WORKS Ltd 21 May 1975 [9 Oct 1974] 22006/75 Heading F1N A compressor comprises a swash-plate 2 connected to a driving shaft 1, a ring of equi-angularly spaced guide cylinders formed in a block 4, 4', a cylindrical guide-member 6, 6' reciprocable in each guide cylinder by the swash-plate 2, and a plurality of pumping pistons, 11, 11' each connected by a sealed piston-rod 10 to one of the guide-members 6, 6'. Each guide-member 6, 6' has a cut-away middle part into which projects the periphery of the swash-plate 2. The ends of the guide-members 6, 6' are bored to receive rod members 7, 7' retained by screws 9. The members 7, 7' have spherical inner ends on which bearing blocks 8, 8' are universally mounted, the blocks 8, 8' engaging opposite surfaces of the swash-plate 2 with a minimum of clearance as determined by shims 70. The block 4, 4' is mounted in a housing 14 to which are bolted housings 15 containing the cylinders 20 for the pumping pistons 11, 11', the latter having selflubricating piston rings 22. Oil lubrication is confined to the housing 14 since the piston-rods 10 pass through seals 24 mounted in partitions 23 in the housings 15. A pump 3 draws oil from a sump 50 and delivers it through passages 51, 53, 53' in the block 4,4' to annular chambers 54, 54' surrounding the shaft 1. From the chambers 54, 54', the oil flows through radial passages 55, 55' in the block 4, 4', grooves 56, 56' and radial bores 58, in the guide-members 6, 6' to chambers 57 in the screws 9 and thence via passages 59, 61 to the sliding surfaces of the bearing blocks 8,8'. Gas enters and leaves the cylinders 20 through valve blocks 30.
Patent GB-220313-A (GB)
Abstract: 220,313. Rudin, K. V. Aug. 7, 1923, [Convention date]. Detent mechanism; transfer mechanism.-In a pin-wheel and cam-disc machine the transfer arms 3 and detent pawls 6 for the numeral wheels 1 are spaced on their individual shafts 4, 8 by cylindrical sleeves 11, 12 respectively, these sleeves being of metal or alloy and also acting as lateral bearing surfaces for the arms or pawls, the latter being slotted at 9 to receive the intermediate transmission wheel shaft 10. An angle bar 14 slotted at 13 guides the upper ends of the detent pawls 6 which are of sheet metal and a similar guide bar may be used for the transfer arms 3.
Patent GB-371720-A (GB)
Title: Improvements in or relating to the making of fibre strands and fabric therefrom
IPC: D03D25/00
Filed: 1931-08-04
Abstract: 371,720. Forming paper &c. yarns and fabrics. HEYWOOD-WAKEFIELD CO., 174, Portland Street, Boston, U.S.A. Aug. 4, 1931, No. 22136. Convention date, Aug. 4, 1930. [Classes 120 (iii), 142 (ii), and 142 (iv).] Fibrous strands are formed by moistening or sizing a strip of fibrous material, cutting it into ribbons and compressing the ribbons into compact fibre strands ; the strands are then dried and wound or a strip of fibrous material containing sufficient moisture may be similarly operated upon. For use as a warp in the manufacture of paper fabric, the strip of fibrous material, e.g. paper, is sized, cut into ribbons, the ribbons compressed and wound side by side on a roller, the strands being maintained adjacent and parallel throughout the operation. Means for cutting and compressing the strands simultaneously comprises a pair of coacting dies 5, 6, Fig. 1, having knife edges 7 and hollows 8, Fig. 3, the paper strip from the reel 1 and sizing bath 3 being passed intermittently through the dies, over the drying cylinders 13 and wound side by side on the roller 14 ; strippers 10, 11 are provided to prevent the strands adhering to the dies 5, 6 as the latter open. Instead of the reciprocating dies 5, 6, a pair of coacting grooved rollers may be used. The strands may be formed with a circular or other cross section, e.g. hexagonal. To prepare a paper fabric, the strands are unwound from the roller 14, Fig. 2, passed through a guide 15, shedding mechanism 16, shaping rollers 22, 23 to the take-up roll 24.
Patent GB-1502147-A (GB)
Title: Heat exchange apparatus for example for drinks
IPC: A47G23/02
Filed: 1975-05-23
Abstract: 1502147 Jugs &c YUGEN KAISHA MITSUMURA 23 May 1975 [29 June 1974] 22815/75 Heading A4A An apparatus for heating or cooling drinks comprises an outer container 1, preferably of spherical shape, for containing the drink and formed with a pouring mouth 3 and an opening 2, and an inner container 6 for ice-cubes or hot material able to be removably located in the opening 2 so that it extends into the outer container 1 leaving a space between the containers which communicates with the pouring mouth, the opening of the inner container and the pouring mouth being inclined relative to the horizontal in opposed directions. As shown, the containers are of transparent heat-resistant glass and the inner container 6 is supported by its projecting lip 7 on the outwardly protruding rim of the opening 2. A lid 9 has a vent slot 8 and the handle 5 is formed integrally with a support 4 and an annular member 10 which fits around the opening 2.