baber/WOPTO huggingface dataset:
Patent GB-554815-A (GB)
Title: Improvements in or relating to the manufacture of finned tublar members for heat exchangers and other purposes
IPC: F28F1/20
Filed: 1942-09-02
Abstract: 554,815. Making finned tubes &c. THORNTON, A. A. (Brown Fintube Co.). Sept. 2, 1942, No. 12373. [Classes 83 (ii) and 83 (iv)] [Also in Group XIII] Angular bending; welding.- Finned tubes for heat exchangers, boiler or furnace walls or other structures consist of one or more channel members first secured to the exterior of a tube and thereafter deformed so that each member forms a single hollow fin. As shown in Fig. 1 tubes 10 with fins 11 which are streamlined to transverse flow of fluids, are made by joining to the tubes preferably by resistance welding, the bases of a pair of channel fin members at a series of spots as described in Specification 554,813, and then bending the flanges and preferably welding the edges either continuously or at a number of spots 15. The operations may be performed by passing the tube and fin elements through rolls 20, 22, 24 for guiding the tube and rolls 21, 25 for aligning the fin members with electrode rolls 23 for welding the bases of the fins to the tubes. The electrodes may be connected to opposite terminals of the electric circuit. The welded assembly then passes through rolls 26, having tapered portions 28 and cylindrical portions 29 for forcing together the flanges, and then through electrode rolls 30 for welding the edges of the flanges together and is discharged from the machine through guide rolls 31. The rolls 23, 26, 30 are driven for feeding the tube through the machine. In a modified assembly the flanges are flattened together throughout most of their area leaving a hollow at 37, Fig. 4. A series of such members welded together at their edges may form the wall of a boiler. In another form with a greater degree of streamlining, the base of the fins may be secured as shown in Fig. 5 over about 90 degrees of the circumference of the tube and may be intermittently resistance welded thereto along three lines 43, 44, 45 either in a single or a series of traverses. In order to prevent strains in the structures due to expansion of the edges of the fin due to higher temperature thereof than the base portions, the fin may be slotted at 49 from the outer edges towards the base to a depth depending on the service for which the tube is intended. The slots may be cut either before or after the fin is secured to the tube.
Patent GB-1222217-A (GB)
Title: 3-acylamino-2,4,6-triiodophenyl-alkanoic acids, preparation and use as x-ray contrast agents
IPC: A61K49/04
Filed: 1968-03-14
Abstract: 1,222,217. N - acetylamino - 2,4,6 - triiodophenyl propionic acid derivatives. EPROVA A.G. 14 March, 1968 [14 March, 1967], No 12378/68. Heading C2C. [Also in Division A5] Novel compounds of the formula wherein Alkyl represents methyl or ethyl, or its non-toxic metal or amine salts or alkyl esters, are obtained by alkylating α - ethyl - # - (3- acetylamino - 2,4,6 - triiodophenyl) - propionic acid on the nitrogen atom by reaction with an alkylation agent, optionally followed by esterification. The alkylation is preferably effected in alkaline medium with a methyl or ethyl halide, sulphate or sulphonate. Specified salts are the Na, Li, K, Ca and Mg salts, and the N-methylglucamine, diethanolamine or triethanolamine salts.
Patent GB-992181-A (GB)
Title: Fastening device
IPC: F16B15/04
Filed: 1963-03-28
Abstract: 992,181. Ground anchors. J. D. DRINKS, and CENTRAL NATIONAL BANK. March 28, 1963 [March 28, 1962], No. 12415/63. Heading E1B. [Also in Division F2] Preformed helical wire-like elements are wound together to form a hollow tube then bent into a bight 64 so that open pitch portions 66 may be twisted together to form a further tube. The free ends 66a are untwisted and sharpened so that when as shown they are driven into the ground, the elements diverge and untwist adjacent the ends.
Patent GB-162627-A (GB)
Title: Improved process for obtaining transparent effects on cotton and mixed fabrics
IPC: D06M11/155
Filed: 1921-04-30
Abstract: 162,627. Forster, H. April 30, 1920, [Convention date]. Inkless printing by chemical reaction.-Transparent silky effects are produced on cotton and mixed fabrics by treating them first with a weak acid and then with a more concentrated solution of the same or another acid, and finally mercerizing with caustic lye. The weak acid may be replaced by known substitutes. Thus, the fabrics may be treated under tension first with sulphuric acid of 49 to 50¢ BÚ. for 1 to 3 minutes, and be then washed and dried, and next treated for 3 to 5 seconds with sulphuric acid of 52 to 54‹ BÚ., and finally mercerized, whilst stretched, with a caustic soda lye of 36 to 40‹ BÚ. The weak sulphuric acid may be replaced by phosphoric, hydrochloric, or nitric acid, or by a solution of zinc chloride or copper oxide of ammonium, and figured effects may be obtained by treating certain parts only of the fabric, a known printing process being used. According to the Specification as open to inspection under Sect. 91 (3) (a) the figured effects may be obtained by subjecting parts of the fabric to one of the treatments. This sub. ject-matter does not appear in the Specification as accepted.
Patent GB-810788-A (GB)
Title: Process for the separation of ú¯-paraffins from hydrocarbon oils
IPC: B01D33/04
Filed: 1957-04-16
Abstract: <PICT:0810788/IV (b)/1> In a process for separating hydrocarbons using urea or thiourea: (1) the hydrocarbons are diluted with an oil solvent; (2) the solution is pretreated by passing through separated adduct containing free urea or thiourea; (3) the pretreated solution is mixed with part of the total urea or thiourea to be used; (4) after separation of the adduct formed in (3) the solution is treated with the remaining urea or thiourea; (5) in a single separating device the adduct from (4) is filtered off in a first zone and passed to a second where the product from (3) is filtered thereby adding the adduct formed in (3), the total adduct so obtained being passed to a third zone where the solution is pretreated in step (2) and thence to a fourth zone where it is washed with an oil solvent to remove adhering oil, the filtrate being used as the diluent in step (1). Urea is used to remove paraffins from hydrocarbon oils and thiourea for removing isoparaffins and naphthenes.  Charge in line 1 is diluted with solvent from line 2 then passed through zone III of separating device 3 where it is contacted with the total adduct containing excess urea obtained from preceding charge (the process being continuous) thereby removing a small amount of paraffins.  The solution then passes by line 4 to mixer 5 where half the theoretical quantity of urea is added and the resultant mixture passes by line 7 to filtration zone II, the filtrate passing by line 8 to mixer 9. Here the remaining half of urea is added and the mixture containing an excess of urea due to the feed being pretreated leaves by line 11. At the commencement of operations this slight excess must be added at this stage, there being no pretreatment.  The mixture can be passed direct to filtering zone I or may pass through a delaying stage 14 such as a worm screw. The filtrate passes by line 15 to distillation where the oil solvent is removed to condenser 19 for recycle and deparaffinated oil product leaves by line 17.  The oil solvent from condenser 19 washes adduct in zone IV of separator 3 and then is mixed with the charge passing by line 2.  The separator 3 may be an endless belt from which the adduct falls, passes to decomposer 21 where it is decomposed, e.g. by heating to 80 DEG  C. and is separated in separator 22, urea being recycled by line 27 and paraffin passing to distillation where it is separated from oil solvent which is recycled by line 26.  The urea may be used as a solid, a solid moistened with a solvent, e.g. methanol or water, or as a solution in methanol or, preferably, water saturated at 70 DEG C. The endless belt filter is preferably made of or coated with a plastic such as polyethylene, polytetrafluoroethylene or "Bakelite" (Registered Trade Mark) to prevent adhesion of the adduct, and is housed in a gas-tight casing (Fig. 2, not shown).
Patent GB-492399-A (GB)
Title: Improvements in or relating to paper and the like envelopes
IPC: B65D27/16
Filed: 1937-05-01
Abstract: 492,399. Envelopes. SKEINS, D. M., and DICKINSON & CO., Ltd., J. May 1, 1937, No. 12471. [Class 146 (ii)] In envelopes having self-adhesive closure by means of strips c<1>, d<1> of adhesive on the inner face of the closure flap c and on the outer face of the bottom flap d respectively, contact of the adhesive layers during storage is prevented by the location of the edge of the closure flap inside the edge of the bottom flap. The side flaps b are first turned over on to the body a of the envelope, and the closure flap is folded down. The bottom flap is then turned up, and is secured to the side flaps by lines of adhesive d‹, which are of limited length, so that a strip bearing the adhesive d<1> is left free. This strip is sprung outwards to release the closure flap for sealing.
Patent GB-412385-A (GB)
Title: Flaked vegetable tissue for extraction and method of making the same
Filed: 1933-05-01
Abstract: Cinchona bark, belladona root and similar woody fibrous materials, to be used in the production of medicinal extracts, are broken into small particles, tempered or softened by treatment with water or steam or by exposure to a moist atmosphere, and then subjected to pressure, by passage between heated rolls or otherwise, so as to produce coherent flakes of a uniform thinness of the order of 0,001 inches.  Extraction media referred to are water, alcohol, glycerine and mixtures of these.ALSO:Woody fibrous products, such as the bark, stems, and roots of plants to be used in the production of extracts for use as medicines, beverages, and the like, are broken into small particles, tempered or softened by treatment with water, steam or by exposure to a moist atmosphere, and then subjected to pressure, by passage between heated rolls or otherwise, so as to produce coherent flakes of a uniform thinness of the order of 0,001 inches. Substances specifically referred to are cinchona bark, wild cherry bark, cascara bark, quassia wood and belladona root. Extraction media referred to are water, alcohol, glycerine and mixtures of these.
Patent GB-619053-A (GB)
Title: Treating carbon articles
IPC: C01B31/00
Filed: 1946-04-26
Abstract: Dust, loose particles, gases and volatile impurities are removed from carbon articles by heating the article, e.g. an electrode 10, whilst immersed in a vaporizable liquid inert to carbon, without otherwise heating the liquid, to a temperature sufficiently high to cause violent ebullition of at least the liquid in contact with the immersed surface of the article.  The article held on a support 13 in a vessel 12 may be heated by a high frequency induction coil 19 or by passage of a current. Water, hydrochloric acid, liquid ammonia, acetone, carbon tetrachloride, alcohol, ether or other easily vaporizable liquid may be used.  The article <PICT:0619053/III/1> may be heated to 50-1000 DEG  C. above the boiling point of the liquid, and a heating time of 5 seconds to 3 minutes is suitable.
Patent GB-592109-A (GB)
Title: Improvements in or relating to bases for electron discharge devices
IPC: H01J5/50
Filed: 1945-05-18
Abstract: 592,109. Caps for discharge tubes. STANDARD TELEPHONES & CABLES, Ltd., and HUNT, J. R. May 18, 1945, No. 12601. [Class 38 (i)] A glass valve-base 1, with lead-in wires 3 and thickened parts 4, has a metal shield 5 and a disc insulator 7 secured to it by flanges 9 on contact pins 8 spot-welded to the lead-in wires at 10. In a modification, Fig. 2 (not shown), the pins 8 have flanges on both sides of, so as to secure, the insulating disc which is flat and is spaced from member 5 by a supplementary disc with apertures for the parts 4.
Patent GB-1186227-A (GB)
Title: Improvements in or relating to Control Apparatus.
Inventor: RUIG JAN ROBERT DE
IPC: D01H1/30
Filed: 1967-03-17
Abstract: 1,186,227. Programmed control of yarn winding; spindle speed control. ALGEMENE KUNGSTZIJDE UNIE N.V. 17 March, 1967 [18 March, 1966], No. 12630/67. Headings D1D and D1J. [Also in Division G3] The growth of a package of yarn on a spindle, e.g. a ring spindle, is controlled by driving the winding spindle at a rotary speed equal to the product of the feed rate of the yarn and a programme signal representative of the rotary speed at a particular feed rate. As shown, a pulse source 3 is coupled to a draw roller and emits pulses having a repetition frequency proportional to the rotary speed of the draw roller. The pulses are fed to adjustable-ratio pulse dividers 4, 5. The pulse-divider 4 is adjusted by hand and its output is applied to a stepping motor 6, the shaft of which is coupled to a programming unit 7. The frequency division of pulse-divider 5 is adjusted in dependence on the output from the programming unit, which comprises a programme card having ridges co-operating with micro-switches, which is displaced by the stepping motor 6. The repetition rate of the programme-adjusted pulses from the pulsedivider 5 are compared in a comparator 9, forming part of an automatic speed controller 10, with the repetition rate of pulses from a pulse source 8 emitting pulses having a repetition frequency proportional to the rotary speed of a yarn-winding spindle 2, whereby the speed of the spindle is maintained in correspondence with the draw-rate. The pulses from pulse-divider 4 are also fed to adjustable pulse-dividers 11, 12 the ratios of which are set by the programming unit 7. The pulses from the pulse-dividers 11, 12 are applied to stepping motors 13, 14 rotating spindles 15, 16 positioning slides 17, 18 on which switches 19, 20 are mounted. The switches co-operate with a projection 22 on a rod 21, which is moved with a ring rail or spindle-carrying bar, to reverse the transverse motion and determine the build-up of a package on the spindle 2.
Patent GB-217726-A (GB)
Title: Improvements in or relating to the loading of explosive shells
IPC: F42B33/02
Filed: 1923-05-12
Abstract: 217,726. Rushen, P. C., (Gibbons, W. A.). May 12, 1923. Explosives, apparatus for making and treating. - An explosive shell 1, Fig. 3, is first loaded with a solid component 2, such as ammonium nitrate in powder or ground form which is compressed by an hydraulic press, or otherwise, to a density of 1.0 to 1.2, and the charge is completed subsequently by the addition of one or more other components which are explosive per se and solid at ordinary temperatures, but are added in a fused condition, for example, by the addition of 20 to 30 per cent of trinitrotoluene which raises the density of the charge to 1.35 to 1.50. The shell may be stored for any length of time charged only with the first component, and the charge may be completed in time of emergency. The sheil may be slightly heated before the second component or components are added. This addition is conveniently carried out by means of a former .5 provided with an outlet 6 at the bottom and vent holes 8 near the top. The added component impregnates the first component and forms also a liner 9 for the hole left for the " booster " when the former 5 is removed after the charge has cooled and solidified. The former 5 is provided with a double-branched pipe 7. Fig. 4, one branch of which is connected to the supply of fused explosive and the other to a, vacuum pump. Stop cocks in the branches allow the shell to be exhausted of air first and then supplied with the liquid explosive, these successive stages being intermittently repeated if desired.
Patent GB-130760-A (GB)
Title: Improvements in and relating to the Stoppering of Bottles, Jars, Cans and the like.
Inventor: SCARLETT ARTHUR RICHARD
IPC: B65D51/14
Filed: 1918-08-07
Abstract: 130,760. Scarlett, A. R. Aug. 7, 1918. Closure completed by cement. - Bottles. jars, cans, &c. containing preserved fruit &c. are closed by means of a plain flat disk or plate A which covers, but does not overlap, the mouth of the receptacle B, and is secured thereto by a strip of the cement described in Specification 114,527, [Class 22, Cements &c.]. The strip, which is plastic when heated, is bent round the neck of the receptacle, and the part which projects above the plate A is folded on top of the plate: or a previously - prepared angle strip of the cement may be applied directly to the plate and receptacle. In another method, a flanged lid consisting of a plate with the anglestrip secured thereto is applied to the receptacle When stoppering a cold receptacle with such a lid, a band D, Fig. 3, of cement is first secured to the neck of the receptacle for the flange of the heated angle-strip C to adhere to; or a band E. Fig. 5, of cement may be applied over the lower part of the vertical flange of the angle.strip C The plate A is preferably of glass and can be removed from the receptacle on warming the cement.
Patent GB-914361-A (GB)
Title: Improvements in or relating to servo-assisted valves controlling fluid flow
IPC: G05D7/01
Filed: 1959-04-15
Abstract: 914,361. Fluid-pressure servo-valves. PHILLIPPS, M. T. April 15, 1959 [April 16, 1958], No. 12804/59. Class 135. A servo-valve has an inlet 2 leading to a chamber 3 provided with an outlet 4, and comprises a main closure member 6 and a pilot valve member 17 guided in bores in the valve body 1. The lower end of the member 6 cooperates with a seat 5 held in place by a flange 7 on the outlet tube 4. A flange 9 on the member 6 slides in the bore 11 with sufficient clearance to permit the passage of water to a passage 13 in the member and thence to a chamber 12. A valve seat 15, held in place in a bore in the member 6, is engaged by the end of the pilot valve member 17 which has a loose fit in the end of the closure member. The member 17 is under the control of a ball valve or other device attached to the arm 30. When the member 17 is raised, water flows out of the chamber 12 via a space 20 to the outlet 4 and the pressure on the flange 9 raises the closure member 6; alternatively, if the pressure is insufficient, flanges 18, 14 on the member 17, 6 respectively engage to lift the member 6. When the member 17 is returned to its seat 15, pressure builds up in the chamber 12 and depresses the closure member 6 on to its seat 5.
Patent GB-726861-A (GB)
Title: Beam cut-off circuit for cathode-ray tubes
IPC: H04N3/20
Filed: 1953-05-08
Abstract: 726,861. Cathode-ray oscilloscopes. STANDARD TELEPHONES & CABLES, Ltd. May 8, 1953 [June 27, 1952], No. 12915/53. Class 40 (3). In a protective circuit for a cathode-ray oscilloscope in which the cathode-ray beam is maintained or cut-off depending on whether a control valve is conductive or non-conductive, pulses derived from the time base are rectified by a gas-discharge tube and applied to an electrode of the valve to maintain it in a conductive state so that if the time base fails, the control valve and the beam are cut off. The control valve may control the bias or the E.H.T. of the tube. As shown in Fig. 1, negative pulses 39 and 32 derived from the horizontal and vertical time bases respectively are applied via capacitors 40 and 33 to the cathode 23 and grid 21 of the control valve 19 which are biased positively and negatively respectively via resistors 41 and 27 from voltage sources + and 22. Pulses 39 change capacitor 40 negatively, thereby reducing the positive bias on cathode 23 and a gas-discharge diode 24 which is connected between ground and the grid end of resistor 27 is rendered conductive by the pulses 32 so that the negative bias on grid 21 is reduced, the fluctuating potential at the grid being smoothed by R.C. network 35... 38. The circuit parameters are such that V19 is conductive only if both pulses 39 and 32 are present. The resistive load 16, 30 of V19 is connected to a positive voltage source B+ which is also connected to the grid of the cathode-ray tube 13 and a tapping on resistor 16 is connected to the cathode of the tube so that the tube is cut-off or conductive when V19 is cut-off or conductive. In a modification, Fig. 2 (not shown), the discharge diode 24 is connected to ground via a biasing battery; a plurality of diodes may be connected in series. In another embodiment, Fig. 3, negative time base pulses 39 are applied to the grid of control valve 52 via capacitor 49 and resistor 50, a gas-discharge diode 124 in series with a positive bias voltage 56 being connected in parallel with grid leak 53 between earth and the junction of capacitor 49 and resistor 50. When V52 is cut-off the anode circuit relay 56 releases to open contacts 57 in the E.H.T. supply to the anode of the cathode-ray tube. In a further embodiment, Fig. 4 (not shown), positive time base pulses are applied through a gas-discharge diode to charge a capacitor positively, the capacitor being connected to the grid of the control valve.
Patent GB-125617-A (GB)
Title: Improvements in or relating to the Manufacture of Fabric for Airships, Balloons and similar Craft.
IPC: B64B1/58
Filed: 1916-09-12
Abstract: 125,617. Vickers, Ltd., and McKechnie, Sir J. Sept. 12, 1916. Cutting tubular fabrics to form flat fabrics.- Biassed or diagonal cloth for use in making fabrics for balloons, air-ships, &c. is obtained in long lengths from fabrics woven tubular in plain or circular looms by cutting them along a line b forming a right or left hand helix, as shown in Fig. 1. The helical line may be determined by passing the tubular cloth over a cylindrical templet, or while the cloth is in the double flat condition by templets &c., and the cutting may be performed by hand or machine.
Patent GB-1091733-A (GB)
Title: Mass-coloration of polyesters
Inventor: COOPER ALBERT CHARLES
IPC: C09B25/00
Filed: 1965-03-26
Abstract: Linear polyesters are mass coloured with one or more dyestuffs of formula R-X, where X is a group of formula <FORM:1091733/C3/1> and R represents a 5- or 6-membered nitrogen-containing heterocyclic ring having a heterocyclic nitrogen atom attached through a double bond to a carbon atom of said ring to which X is attached, and which ring may contain substituents or form part of an optionally substituted fused ring system; the benzene ring A may contain substituents or form part of a naphthalene nucleus; at least one of X and R is substituted by at least one -COOY group, wherein Y represents hydrogen, alkyl, hydroxyalkyl or hydroxyalkoxyalkyl; and provided that A and R are free from sulphonic acid groups.  Specified substituents on the benzene ring A are chlorine and bromine atoms and alkoxy, alkyl, nitro and hydroxyl groups whilst specified substituents for R are chlorine and bromine atoms and hydroxyl, methyl and methoxy groups. Also, the substituents present on A and/or R may be such that the dyestuff contains two systems of formula <FORM:1091733/C3/2> Specified 5- or 6-membered rings for R are thiazole, oxazole, oxadiazole, pyrazole, triazole, pyridazine, pyrimidine, triazine, oxazine and pyridine rings whilst specified fused ring systems containing the ring R are benzoxazole, indazole, benziminazole, benzthiazole, naphthathiazole, quinazoline, quinoxaline, phthalazine, isooquinoline and quinoline rings.  The dyestuffs, wherein Y represents a hydrogen atom, may be used in the form of their ammonium salts which give rise to the free acids during the heat treatment required to melt the polyester.  The preferred linear polyesters are those of terephthalic acid and glycols of formula HO-(CH2)x-OH (where x = 2-10) or 1:4-di (hydroxymethyl) cyclohexane.  The dyestuff may be tumbled on to chips of the polyester (possibly in the presence of water or an alcohol) or the dyestuffs may be added during the preparation of the polyester (e.g. before or after the ester-interchange reaction). Examples describe the mass colouration of polyethylene terephthalate.