baber/WOPTO huggingface dataset:
Patent GB-799486-A (GB)
Title: Heat exchanger
IPC: F28F13/06
Filed: 1956-05-23
Abstract: 799,486. Heat exchangers. WAAGNERBIRO AKT.-GES. May 23, 1956 [May 26, 1955], No. 15891/56. Class 64(3) A heat exchanger comprises tubular elements 1 for conveying a fluid, juxtaposed to define external spaces 2 for a second fluid flowing in co-current or countercurrent to the first fluid, baffles 8 (Fig. 7) being provided in the elements 1 to effect a swirl in the fluid flowing therethrough. The external fluid may also flow with a swirling motion effected e.g. by baffles 9. Figs. 3, 4 and 8 show alternative crosssectional forms of the elements 1 which are preferably so disposed that the internal and external fluid passages are of substantially equal cross-sectional area. Each element is so shaped in cross-section that slots 4 are formed in the walls whereby the boundary layer of one or both fluids is withdrawn as they pass through the heat exchange zone. In a further form (Fig. 6 not shown) the elements may have ex ternal ribs such that a rectilinear flow is promoted in the external fluid. In Figs. 7 and 8 the heat exchange surface is increased by the provision of other tubular elements 5, 6 arranged as shown, guide vanes 7 being provided around the tubes 5 to further promote heat transfer.
Patent GB-614906-A (GB)
Title: Improvements in and relating to ignition spark gap devices
IPC: H01T4/12
Filed: 1944-08-22
Abstract: 614,906. Spark-gaps. BRITISH THOMSONHOUSTON CO., Ltd. (General Electric Co.). Aug. 22, 1944, No. 15996. [Class 39 (i)] [Also in Group XXVII] A spark-gap of the type frequently used in ignition systems comprises a pair of electrodes, a substantially cup-shaped casing of electrically conductive material arranged about each electrode, means for insulating the casings from each other and for mechanically connecting them together to form a hermeticallysealed enclosure, an intermediate spacing element of insulating material between the electrodes, and means for biassing the electrodes towards the element so that the distance between opposite faces of the electrodes is determined by the thickness of the spacing element. As shown, each of a pair of electrodes 10, 11 has around it a cup-shaped casing 18. The electrodes are spaced apart by an insulating washer 16 which extends partly across annular grooves 12. A facing of relatively hard material which is a good electrical conductor such as tungsten, silver, carbon, &c. is attached to the face of each electrode. An insulator 17 fits over both electrodes and is sealed to the casings by a glass seal 22. The device is filled through an opening 24 with a gas such as hydrogen, neon, argon, &c. The opening is then hermetically sealed by welding 25. In order to ensure that a uniform breakdown voltage is obtained, even though there may be variations in the thickness of the spacing washer 16, the pressure of gas in the device may be varied. The casings are welded to the electrodes at 19 electrically.
Patent GB-199729-A (GB)
Title: Improvements in and relating to methods of treating silk
IPC: D06M11/57
Filed: 1923-06-20
Abstract: 199,729. Carpenter Chemical Co., Inc., (Assignees of Mendelssohn, E.). June 21, 1922, [Convention date]. Knitted fabrics.-In the manufacture of fine silk threads, such as are to be woven into stockings or other sheer fabrics, the thread is shrunk, hardened and rendered more durable, and the loose fluff thereon is caused to adhere closely to the body of the threads, by treating with a solution of alum, and drying. In a subsequent washing of the fabric, the alum reacts with the soap to form an aluminium stearate which tends to hold the threads together and reduces the liability of running. The treatment with soap may be done before the article is marketed.
Patent GB-220602-A (GB)
Title: An improved aluminium-copper-silicon alloy and method of producing same
IPC: C22C21/12
Filed: 1924-07-04
Abstract: 220,602. Vereinigte Aluminium-Werke Akt.-Ges. Aug. 16, 1923, [Convention date]. Alloys.-Aluminium alloys containing 4 per cent of copper and 2 per cent of silicon are heated to about 500‹ C. and worked by mechanical treatment such as rolling, drawing, forging, or pressing. The worked alloy is then heated for about 3 hours to about 500‹ C. and cooled slowly in air or quenched in oil and water, the cooled alloy being hardened at a temperature of 90-100‹ C. for about 48 hours.
Patent GB-475637-A (GB)
Title: Machine for grinding gear teeth by the generating method by means of two wide flat grinding wheels
IPC: B23F5/06
Filed: 1937-06-10
Abstract: 475,637. Gear-cutting. LINSE, F., .and BELLMANN, A. June 10, 1937, No. 16147. Convention date, Sept. 25, 1936. [Class 83 (iii)] In a machine for generating gear-wheels, a pair of flat-sided grinding-wheels 3, 4 inclined at the flank angle of the basic rack, Fig. 2, are offset from each other in the direction of their stroke through the work 2, Fig. 1, so that they do not overlap and may thus be set to operate on opposite sides of the same tooth, thus reducing the generating roll to a minimum. The blank is mounted on a mandrel 5 carried between centres 6, 7 on a transverse slide 15 moving in guides 16, the centre 6 being connected with indexing mechanism 8 associated with flexible-band rolling mechanism. The latter consists of steel tapes 10, 11 anchored to tensioning devices in a housing 12 and passing round a rolling sector 9. The slide 15 is reciprocated to impart rolling movement to the blank by means of a crank-disc 17 and connecting rod 18 and the housing 12 may be moved on a slideway 53 for angular adjustment of the blank. The slideway 16 is mounted upon a bed 52 which may be swung about an axis 50 to set the blank to the desired angle for rolling helical gears. The bed 1 has a column 20 carrying a vertical slide 21 with an overhanging guide portion 22 carrying a slide 23 from which are slidably suspended bearing brackets 24, 25 carrying the adjustable grinding headstocks 30, 31 and adjustable to the pitch of the teeth in ways 36, 37. The slide 23 also carries mechanism 26, 27 actuating in-feed and trueing devices for the grinding- wheel and motors 28, 29, Fig. 9, for driving through belt gearing the grinding-wheels and the trueing and feed devices. The main motor 38 located within the bed, drives a gearbox 42 operating a slide 43 driving through rack-and-pinion gearing and a vertical shaft 44 the grinding spindle slide 23. The slide 43 carries control lugs 49. A hollow shaft extending from the gear-box is connected through bevel gearing to the crank-disc 17, and encloses another shaft connected through bevel and other gearing to the indexing mechanism 8. The blank is indexed after each passage of the grinding-wheels. The trueing devices mounted on the headstocks 30, 31, Fig. 6, comprise arms 65, 66, carrying trueing diamonds and swung over the wheel faces by mechanism controlled by stops 67 on the slideway 22. The trueing is effected at inoperative parts of the travel of each wheel so that no time is lost. In operation, during a stroke to the left through the required distance B, Fig. 8, the grinding-wheel 3 first passes through a tooth and the grinding slide is then moved at high speed until the wheel 4 is about to engage the blank when the working speed is resumed until the wheel 4 has passed through the blank after which the blank is indexed and the grinding slide returned.
Patent GB-826967-A (GB)
Title: Production of stretched polyacrylonitrile filamentary material
IPC: D01F6/18
Filed: 1956-05-25
Abstract: Gelled polyacrylonitrile filamentary material which has been formed by wet-spinning a solution of the polymer in a concentrated aqueous solution of an alkali-metal thiocyanate into a dilute aqueous solution of an alkali-metal thiocyanate maintained at a temperature not exceeding 10 DEG  C., or not exceeding 40 DEG  C. if a water-miscible alcohol is a component of the spinning solution, or of the coagularing bath, or both, which filamentary material contains water and an alkali-metal thiocyanate, the latter being present in such a proportion that the ratio of the proportion of alkali metal thiocyanate in the filaments to that of acrylonitrile polymer in the filaments is 0.5 to 2.0, both constituents being reckoned as dry, is stretched at -2 DEG  to 40 DEG  C. to between 1.5 and 4 times its original length, the thiocyanate is extracted from the stretched filamentary material with water or other solvent for the thiocyanate, and the filamentary material is stretched a second time to between 1.5 and 10 times its once-stretched length, the total stretch being three to fifteen times the length of the filamentary material immediately before the first stretch, and the second stretch being effected at 70-110 DEG  C. while the material is in contact with water or steam.  The material is then dried, either with or without previous rinsing with water.  The coagulating bath is preferably maintained at or below 0 DEG  C., e.g. at -9 DEG  to -0.5 DEG  C., and may contain at least 4%, e.g. 5 to 15%, by weight of a water-miscible alcohol such as methyl, ethyl, propyl, isopropyl, n-butyl, sec.-butyl or tert.-butyl alcohol.  The polymer should contain at least 35% of polyacrylonitrile, the balance, if any, being derived from other polymerizable vinyl compounds, a number of which are specified.  In an example, a spinning solution containing 12.5% of a copolymer of 95% of acrylonitrile and 5% of methyl acrylate, 43.75% of sodium thiocyanate and 43.75% of water is spun into a 10% aqueous solution of sodium thiocyanate at -2 DEG  C. to form a gelled thread which contains 1.1 times as much sodium thiocyanate as copolymer.  The thread is stretched in air at 5 DEG  C. to 3.63 times its original length, washed with water to remove substantially all the sodium thiocyanate, hot-stretched in water at 98 DEG  C. to 10.89 times its original length, and dried on a set of rolls.
Patent GB-476581-A (GB)
Title: Improvements in or relating to the treatment of textile materials and compositions for such treatment
IPC: D06M15/17
Filed: 1936-06-10
Abstract: Textile materials comprising organic derivatives of cellulose are delustred by first treating with a size comprising a liquid medium containing an alkali metal silicate and the product obtainable by reacting a resinous substance with ammonia, and then forming a substantially insoluble resinate in situ by treating with a halogen salt of an alkaline earth metal, e.g. barium chloride.  The size is prepared by mixing the resinous substance, preferably bleached colophony, with sufficient aqueous ammonia to dissolve it, adding ethyl alcohol, allowing to stand, filtering, diluting, and adding the sodium silicate solution just prior to use.  The material is treated with the size, and in the case of a fabric is dried in a tenter under low tension and then passed between rollers at 95--115 DEG  C.  The delustring is effected by treating with a 10 per cent solution of barium chloride.ALSO:A size or finish for textile materials comprising organic derivatives of cellulose comprises a liquid medium containing an alkali metal silicate and the product obtainable by reacting a resinous substance with ammonia.  Preferred reagents are a bleached colophony, although synthetic resins may be used, and as the liquid medium ethyl alcohol and water.  The treated fabric may be subsequently reacted with a solution of a salt which will form a substantially insoluble resinate, e.g. barium chloride.  The resinous substance is preferably mixed with sufficient aqueous ammonia to dissolve it before addition of the sodium silicate.  In applying the size to a fabric, the latter is preferably first vacuum extracted, the size applied by immersion or by rollers, dried in a tenter under low tension, and finally between rollers at 95-115 DEG  C.  In an example, a stock solution is prepared by mixing approximately 1 vol. concentrated ammonium hydroxide, 2 vols. of bleached colophony, 4 vols. of ethyl alcohol, allowing to stand, filtering, and then adding 33 vols. of water; the sodium silicate solution is added just prior to use so as to bring the sodium silicate content to 5 gms./litre.
Patent GB-227053-A (GB)
Title: Improvements in metallic rims
IPC: B60B21/02
Filed: 1924-07-07
Abstract: 227,053. Boursier, J. Feb. 26, 1924, [Convention date]. Rims. - A one-piece rim having hollow beads a is formed by folding over the edges c into grooves b<1> containing solder or other alloy.
Patent GB-503888-A (GB)
Title: Improvements in hinges and hinged containers
IPC: E05D7/10
Filed: 1938-05-31
Abstract: 503,888. Hinges. BOENECKE, A. May 31, 1938, No. 16303. Convention date, June 3, 1937. [Class 65 (ii)] A lid D of a box U, made of mouldable material such as synthetic resin, has a part 12 carrying two pivots 13, 14 which enter recesses 18 in bosses 16, 17 at the back of the box. The part 12 is held in position by a resilient piece 21 which is made thicker than the adjacent part of the wall 15 so that when the lid is being attached the resilient piece is caused first to yield inwards, Fig. 6, then to spring out to its unstrained position so that a curved shoulder 22 on it latches beneath the part 12. The invention is not limited to a hinge which is integral with a box.
Patent GB-1402182-A (GB)
Title: Nitrogen-containing siloxane oxyalkylene copolymers
IPC: C08G18/00
Filed: 1972-04-10
Abstract: 1402182 Nitrogen - containing polyoxyalkylene - polysiloxane copolymers IMPERIAL CHEMICAL INDUSTRIES Ltd 30 March 1973 [10 April 1972] 16403/72 Addition to 1257650 Headings C3T and C3R An organopolysiloxane copolymer comprises one or more units of the general formula where R is a substituted or unsubstituted monovalent hydrocarbon group R<SP>1</SP> is a divalent organic group R<SP>2</SP> is a hydroxyalkyl or hydroxycycloalkyl group R<SP>111</SP> is a monovalent hydrocarbon group an acyl group, an N-substituted carbamyl group or a divalent group of the general formula, -CON(R<SP>2</SP>)(R<SP>1</SP>)-, the remaining valency of R<SP>1</SP> being satisfied by another Si-atom in the same or another polysiloxane block, x is 0, 1 or 2, y is 1 or 2, n is 2, 3 or 4, and z is 2-100, the remaining units, if any, being of the general formula R b SiO (4-b)/2  where R is as above defined except that a small proportion thereof may be hydrogen and b is 0-3. The copolymers may be prepared by reacting an organopolysiloxane containing one or more units of the formula R x Si(H) y O 4-x-y/2  either alone or with one or Wore units of the formula R b SiO (4-b)/2  with either an unsaturated polyoxyalkylene carbamate of the formula where R<SP>v</SP> is the ethylenically unsaturated precursor of R<SP>1</SP>, when R<SP>111</SP> is monovalent, or with a dicarbamate of the formula In Examples 1-3 a polyoxyalkylated 2- methoxyethanol of formula (Examples 1, 2) or (Example 3) is reacted with phosgene to give the chloroformate and then with N-2-hydroxypropylallylamine to give the polyether N- al y - N - 2 - hydroxypropylcarbamate, and this is reacted with a trimethylsilyl-ended dimethylsiloxane - methylhydrogensiloxane copolymer containing 28-48 Si atoms in the presence of bis-(diethyl sulphide) platinous chloride in toluene. The procedure of Example 4 is similar to that of Example 3 except that the amine used is N-(2-hydroxy-2-phenyl) ethyl allylamine. The product of Example I is used as a cell control agent and stabilizer in the manufacture of a rigid polyurethane foam by mixing an oxypropylated glycerol of M.wt. 312, 4,4<SP>1</SP>- diisocyanatodiphenylmethane, trichlorofluoromethane, tri(betachloroethyl)phosphate, Pluronic (Registered Trade Mark), N,N-dimethylcyclohexylamine, water and the polysiloxanepolyoxyalkylene copolymer of Example 1 and allowing the mixture to foam.
Patent GB-623082-A (GB)
Title: Improvements in or relating to a process for the production of riboflavin
IPC: A61K31/525
Filed: 1947-06-20
Abstract: Riboflavin is produced by propagating at temperatures of 15-40 DEG C. an active culture of Eremothecium Ashbyii in an aqueous nutrient mash containing protein containing materials and metabolizable carbohydrates or lipoids with constant agitation and aeration throughout the mash, the initial pH being between 4.5-9.1.  The process may be carried out at either atmospheric or super - atmospheric pressure.  Materials mentioned as suitable to be included in the mash include milk, whey, steep water, molasses and mashes made from water and cereal grains, oil meals, seeds from leguminous plants such as peas, soya beans or field beans. Lipoids mentioned include peptone or egg albumin, corn oil, lecithin, olive oil, peanut oil and cocoa butter.  Waste protein materials mentioned include tankage fish meal, meat scrap, untreated hide scrap and dried yeast. Carbohydrates mentioned include glucose, sacrose and mannose.  After the fermentation is over (50-90 hours), the product is concentrated by evaporation, or spray dried.  Examples are given of the process of the invention, using as the starting materials (1)-(4) thin grain fermentation residue; (5) glucose and thin residue from whisky distillation; (6) corn steep water and thin grain alcohol; (7) thin grain alcohol residue with various carbohydrates added; (8) mineral salts, lipoids and peptone or egg albumen.  Reference has been directed by the Comptroller to Specification 594,015.
Patent GB-330390-A (GB)
Title: Improvements in or relating to hinges
IPC: E05D3/02
Filed: 1929-05-28
Abstract: 330,390. Garrett, F. G. May 28, 1929. Hinges readily separable about hinge pins for mirrors comprise similar flaps A each having a socket such as b<1> extending half the length thereof and a stop in the form of a longitudinal ridge arranged on one or both sockets of the hinge, the ridge on either socket coming into engagement with the other socket when the hinge is opened, to serve as a stop. As shown, the ridges a<3>, b<3> are formed on the sockets respectively, the ridges b<3> being on the flap, not shown. The pivot pin is permanently secured to one of the sockets. The ridges a<3>, b<3>, preferably extend the whole length of their socket members.
Patent GB-1211732-A (GB)
Title: A quinazolinone derivative
Inventor: OTT HANS
IPC: C07D333/22
Filed: 1967-10-23
Abstract: 1,211,732. Quinazolone derivatives. SANDOZ Ltd. 23 Oct., 1967 [21 Nov., 1966; 11 May, 1967], No. 16479/70. Divided out of 1,211,731. Heading C2C. The invention comprises 1 - methyl - 4 - (2- thienyl - 2(1H) - quinazolone I of the formula It is prepared as described in the parent Specification 1,211,731. 2 - (o - Methylaminobenzoyl) thiophene is prepared by reacting concentrated sulphuric acid with 2 - [o - N - methyl - N - tosylamino) benzoyl] thiophene itself prepared from o-(N-methyl-N- tosylamino) benzoyl chloride and thiophene. 4 - (2 - Thienyl) - quinazoline II is prepared by oxidizing with potassium permanganate the corresponding 3,4-dihydro compound, itself prepared from thiophene, quinazoline and butyl lithium. The 1-methyl iodide of II is prepared by reaction with methyl iodide. Pharmaceutical compositions containing as active ingredient the compound of Formula I in admixture with a pharmaceutically acceptable carrier are administered orally or parenterally and have anti-inflammatory activity.
Patent GB-616368-A (GB)
Title: Improvements in or relating to pressure fluid parallel slide stop valves
IPC: F16K27/04
Filed: 1946-05-31
Abstract: 616,368. Valves. COCKBURNS, Ltd., RODGER, J., and GRANT, T. May 31, 1946, No. 16577. [Class 135] In a pressure fluid parallel slide stop valve having a valve member 11 comprising complementary valve halves urged apart by springs towards seats 12 and each having two cylindrical spigots 23 engaging bosses in frame portions 17 attached to a frame portion 18, apertures in which, in the open position of the valve, register with the fluid passage through the valve, the frame portions 17 are detachably connected to the portion 18 by T-section ribs 22 engaging a corresponding slot 21 in the portion 18. Side covers 20, having faces 20a forming guides for the frame portions 17 are removable to facilitate removal of the frame portions 17 and the valve member. Specification 616,367 is referred to.
Patent GB-951884-A (GB)
Title: A new process for the preparation of 2-aminothiazole compounds
IPC: C07D277/40
Filed: 1962-05-01
Abstract: 2-Aminothiazoles having the formula: <FORM:0951884/C2/1> <FORM:0951884/C2/2> wherein R is a straight or branched chain alkyl group having 1 to 8 carbon atoms are prepared by refluxing a compound of formula: <FORM:0951884/C2/3> in which X is a halogen atom, with thiourea in an inert solvent.  The compounds may be recovered as a mixture and then separated, e.g. by fractional crystallisation of their picrates. As inert solvent, methanol, aqueous methanol, ethanol, aqueous ethanol or acetone may be used.
Patent GB-1573331-A (GB)
Title: Methods of and apparatuses for producing multiple core power current cables or conductors
IPC: B29C48/06
Filed: 1977-04-21
Abstract: In the continuous production of a power cable, its cores (14) are stranded with a reversing lay and are jointly encased by an injection-coated sheath. This sheath holds the cores (14) in the desired stranding position in such a way that there is no need for special measures for this purpose. The cable cores (14) are fed to a stranding device (20) via deflecting or guiding rollers or drums (18), and to a correspondingly perforated guiding disc (13) which is secure against rotation. The cores are stranded with at least two-fold mutual winding and a lay length of at least 250 mm. The ratio of the effective stranding disc diameter to the distance of the stranding point (15) from the stranding disc (2) is between 1:2 and 1:10. During stranding, the cable cores (14) are simultaneously injection coated directly at the stranding point (15) or at an only slight distance therebehind of less than 100 mm. They are then drawn off or reeled up as a finished cable. <IMAGE>
Patent GB-105045-A (GB)
Title: Improvements in and relating to Travelling Bags.
Inventor: WALLACH SAMUEL HILZHEIM
IPC: A45C3/00
Filed: 1916-11-21
Abstract: 105,045. Wallach, S. H. July 22, 1916, [Convention date]. H a n d bags; dressing- cases.-A travelling-bag or dressing-case comprises a shallow receptacle 10, Fig. 2. provided with flaps 22, 24, Figs. 1 and 2, adapted to cover one or more subdivided tapered trays 14, 18 arranged above the receptacle 10. The flaps 22 are secured together by a buckle 23, and the flaps 24, which mav be secured together by a lock 25, are provided with handle-pieces 26, 27, Figs. 1 and 4, adapted to inter-engage and form a single handle. Lateral movement of the trays 14, 18 may be prevented by pins engaging socket-pieces 32, Fig. 2. The tray 14 may have a collar receptacle provided with a fabric top and a draw-string. The flaps 24 may have short upstanding extensions 33, Fig. 1, or they may be arranged to be buttoned to the flaps 22.
Patent GB-1012574-A (GB)
Title: Improvements in high-pressure mercury discharge lamps
IPC: H01J61/82
Filed: 1963-04-29
Abstract: 1,012,574. Metal-vapour lamps. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. April 29, 1963 [May 2, 1962], No. 16723/63. Heading H1D. A high-pressure mercury discharge lamp has a filling of mercury, rare gas, and a metal iodide, in a closed discharge vessel mounted within an envelope which transmits at least 50% of the desired radiation produced by the discharge and reflects at least 50% of the infra-red radiation, the power supplied to the discharge vessel during normal operation being so high that the resonance radiation of the metal of the metal iodide is emitted. The silica discharge vessel 1 having electrodes 2 and 3 is mounted within the evacuated glass envelope 6 having an internal layer 8 of tin oxide of resistance between 10 and 100 ohms per square, and a getter 7 to maintain the vacuum. The filling may include mercury, a rare gas, and the iodide of mercury, sodium, indium, thallium, gallium, nickel, or cobalt, and excess iodine may be present. The infra-red reflective coating may not cover the whole envelope, provided it reflects at least 50% of all the infrared impinging upon the whole envelope.