baber/WOPTO huggingface dataset:
Patent GB-1461726-A (GB)
Title: Process for preparing a soluble tea product
IPC: A23F3/12
Filed: 1975-06-03
Abstract: 1461726 Tea product NESTLE SA 3 June 1975 [10 June 1974] 23914/75 Heading A2B A tea product is produced by chilling a hot water extract of tea leaves to precipitate native (i.e. unoxidised tannins therefrom and separating the precipitated tannins which are then dispersed in an aqueous medium at a pH of 7.0 to 9.0, subjecting said tannins to oxidation at a temperature of at least 50C to render the tannins soluble in cold water and to reduce the pH of the medium to between 5.0 and 8.0, contacting the medium containing the oxidised tannins with an agent comprising an approximately equivalent amount of native tannins thereby decolorising the oxidised tannins, chilling the resultant composition and separating a solution of decolorised cold-water soluble tannins from the precipitated tannins. The so-formed solution of decolorised tannins may be reconstituted with an essentially tannin-free solution having essentially the same constitution as the supernatant liquid from the first chilling step and drying the product to form a powdered tea product. Volatile constituents of the tea may be removed and preserved by steam stripping from the aqueous extract and cooling to obtain a stable isolate. The oxidation step may be carried out using hydrogen peroxide, ozone and/or oxygen, or air. Preferably the decolorisation of the oxidised tannins may be brought about by addition of a whole tea extract from which the volatiles have been removed.
Patent GB-352292-A (GB)
Title: Improvements relating to cinematograph cameras
IPC: G03B3/00
Filed: 1930-08-09
Abstract: 352,292. Kinematograph cameras. ALLDRIDGE, R. S., 15, Wellington Road, Harrow, Middlesex. Aug. 9, 1930, No. 23920. [Class 97 (i).] In a lens assembly for colour kinematography comprising at least two lenses with parallel axes, and in which inclined guide surfaces are provided for the lenses to cause their separation to be varied by focusing adjustment to avoid or reduce parallax, the guide surfaces are made flat. As shown two lenses 4 are carried by mounts 6 having flat inclined guide surfaces 8 co-operating with similar surfaces 10 within the barrel 12. Each side of each mount 6 is recessed at 14, the edges 16 of the recesses being parallel to the surfaces 8. The spaces formed by these edges are occupied by wedges 18 secured within the barrel by screws 20 and dowels 22. The wedges may be adjustable lengthwise in the barrel to enable the mounts to slide without slack ness. The front ends 24 of the mounts 6 are formed as inclined surfaces for engagement by an annulus 28 of the kind described in Specification 352,293, which is moved axially by the focusing sleeve 32. The mounts are urged in the forward direction by springs 34. Specification 322,801, [Class 97 (i), Optical systems &c.], also is referred to.
Patent GB-189872-A (GB)
Title: Improvements in the manufacture of tanning and other extracts
IPC: C14C3/10
Filed: 1921-09-08
Abstract: 189,872. Nance, C. W. Sept. 8, 1921. Extracts, making.-Tanning and other extracts are prepared by agitating the raw material with warm water under reduced pressure, filtering the liquor, and concentrating under reduced pressure in a vat provided with a large heating-surface. A series of vats A are filled with the material from which the extract is to be made, and the material in the first vat is covered with water or other solvent. Steam is passed through coils in the bottom of the vat, and a vacuum, sufficient in the case of water, to cause ebullition at 80‹ F., is produced therein by means of an aspirator D, which is connected to the vats by pipes I through a catch-pit C. This causes agitation of the contents, swelling of the material, and a rapid evaporation. After a time the liquid is run into the second vat and the first vat is again filled with water, and the treatment is repeated, and so on until the first liquor has traversed all the vats, when it is run directly to the tanpits or into an evaporating-vat B, also connected to the aspirator D and provided with steam coils. A steam jacket may also be provided at the bcttom. The material in the first vat is then replaced by a fresh supply which becomes the last to be treated before the liquor passes to the evaporating-vat. A pump M and a filter L are provided.
Patent GB-1145618-A (GB)
Title: Improvements in or relating to diapers and the manufacture thereof
IPC: A61F13/15
Filed: 1967-05-23
Abstract: 1,145,618. Making diapers. STILLEWERNER A.B. 23 May, 1967 [23 May, 1966 (2)], No. 23929/67. Heading A3V. [Also in Division A5] In the manufacture of disposable diapers, absorbent filling material, such as disintegrated cellulose pulp, is applied to a moving web 2 of non-woven material and cellulose tissue, through a hopper 3 as a layer 6 the thickness of which is determined by a rotary brush 5 adjacent an opening 4 in the hopper. The brush, driven by a motor 9, is pivotally journalled on a fixed shaft 8 at one end and engages an eccentric 11 at the other, the speed of rotation of the eccentric in relation to the speed of movement of the web determining the thickness of the layer 6. Subsequently the edges of the web 2 are wrapped round the layer 6 and heat sealed to each other to form a continuous diaper length, which is cut into individual diapers along transverse heat seals. Examples of diapers formed by this method and apparatus have a layer 6 increasing in thickness from one end to the other or from both ends towards the middle of its length.
Patent GB-660451-A (GB)
Title: Improvements in or relating to buttons
IPC: A44B1/28
Filed: 1947-08-29
Abstract: 660,451. Buttons; studs. NEUMANN, J., and NEUMANN, R. Aug. 29, 1947 [Oct, 20, 1941], No. 23945/47. Class 43. A removable button comprises a shaft member 2 having means, e.g. a flange 3, which abuts one surface of the cloth, and a sleeve member 5, which receives part of the shaft and has means, e.g. a flange 6, which abuts the other surface of the cloth, removable locking means being inserted transversely through apertures in the members. A transverse bore is provided in the shaft 2 and a plurality of pairs of diametrically opposed apertures 8 are provided in the sleeve 5 at varying distances from the flange 6. To attach the button the pointed end of the shaft 2 is pushed through the cloth 1 and inserted in the sleeve 5 until the cloth is gripped between the flanges 3, 6; the transverse bore is then aligned with a pair of apertures, selected in accordance with the thickness of the cloth, and a pin 7 is inserted therethrough. It can be removed by applying axial pressure thereto. It may be part of a long rod which, to facilitate breaking, is provided with grooves at intervals conforming to the outside diameter of the sleeve 5. The Specification as open to inspection under Sect. 91 comprises also a modification wherein the sleeve itself abuts the cloth at one end and is connected, e.g. by brazing, welding or rolling, at its other end to a concave disc provided with a cap; the shaft member may be a flanged, hollow rivet. The pin 7 is replaced by a rivet, which can be removed by filing off the rivet heads and then expelling the remainder. This subjectmatter does not appear in the Specification as accepted.
Patent GB-262208-A (GB)
Title: Folding or collapsible bracket
IPC: A47G29/08
Filed: 1925-09-25
Abstract: 262,208. Kenderson, T. Sept. 25, 1925. Folding and clip brackets, securing.-Brackets for shaving brushes comprise a back a, a forked arm d hinged to fold thereon or detachably engaging a socket b and a pin f for securing the back on a wall. The arm d has upturned ends e and has a vertical part c fitting a socket b on the back or if hinged carries folding flaps to hold it horizontal.
Patent GB-369515-A (GB)
Title: Improvements in or relating to partitions, walls and surface-facings therefor, constructed of plaster or like slabs assembled together edge to edge
IPC: E04B2/02
Filed: 1931-08-27
Abstract: 369,515. Walls, partitions, or surface facings. TSCHAN, G. and WASMER, E., Riehen, near Basle, Switzerland. Aug. 27, 1931, No. 24160. [Class 20 (iv).] In a partition, wall, or surfacef a c i n g therefor built up of slabs of plaster, cement, &c. the slabs are formed with marginal recesses which register to form a groove in which a butt strip or band is secured to cover the joint. The slabs a may be connected by keys b and recesses c, and the groove is lined with a strip g of strong canvas secured by adhesive, the groove being then filled with plaster h. By these means the tendency to crack at the joints is lessened.
Patent GB-355495-A (GB)
Title: Improvements in or relating to tea pots and like vessels
IPC: A47G19/14
Filed: 1930-08-13
Abstract: 355,495. Teapots. LIMMER, H. E., Rosedene, Silverdale Avenue, Hove, Sussex. Aug. 13, 1930, No. 24202. [Class 129.] A metal teapot a has a shallow spout a<1> and a hinged lid c with an integral strainer c<2> for covering the opening from the pot to the spout, to facilitate cleaning.
Patent GB-1206669-A (GB)
Title: Novel halogenated salicylaldehyde schiff's bases
IPC: C07C251/24
Filed: 1968-05-22
Abstract: 1,206,669. Halosalicylaldehyde Schiff's bases. PECHINEY PROGIL SOC. POUR LE DEVELOPPEMENT ET LA VENT DE SPECIALITES CHIMIQUES. 22 May, 1968 [26 May, 1967], No. 24342/68. Heading C2C. [Also in Division A5] The invention comprises compounds of the Formula I wherein X is halogen, and R is a cyoloaliphatic or tetrahydronaphthyl radical, which may be substituted by one or more of the radicals OH, halogen, alkyl or halogenated alkyl, and their salts and divalent metal chelates, and the organic salts of their esters. They are prepared by condensing a primary amine RNH 2  with a dihalogenated salicylic aldehyde. The organic salts of the esters are produced by reacting the Schiff's base with the anhydride of the organic acid. The compounds of Formula I have fungicidal activity.
Patent GB-1385603-A (GB)
Title: Process for recovering 2,2,4-trimethyl-4-4-hydroxyphenyl chroman
IPC: C07D241/26
Filed: 1973-05-22
Abstract: 1385603 2,2,4 - Trimethyl - 4 - (4 - hydroxyphenyl)-chroman GENERAL ELECTRIC CO 22 May 1973 [18 July 1972] 24375/73 Heading C2C 2,2,4 - Trimethyl - 4 - (4 - hydroxyphenyl)- chroman is obtained from the by-product stream obtained by the reaction of phenol and acetone in the presence of an acid condensing agent to produce bisphenol-A, by treating the stream with aqueous alkali of at least 2N strength, adjusting the pH of the resulting solution to a value of at least 10, and separating the pure 2,2,4 - trimethyl - 4 - (4 - hydroxyphenyl)- chroman which is precipitated.
Patent GB-1534467-A (GB)
Title: Electron bombarded semiconductor device
IPC: H01L29/66
Filed: 1977-06-10
Abstract: 1534467 Cathode ray tubes; electron bombarded semiconductor devices WATSON JOHNSON CO 10 June 1977 [17 June 1976] 24375/77 Headings H1D and H1K [Also in Division H3] An electron bombarded semiconductor amplifier has a simplified target construction in which the N-type electrodes of PN diode array D2<SP>1</SP> and the P-type electrodes of diode array D1<SP>1</SP> are connected to a common point which is earthed and the other electrodes of array D1<SP>1</SP> are coupled to those of array D2<SP>1</SP> by parallel connected bypass capacitors 13a, 13b. The arrangement of Fig. 4 uses diodes having an N-type substrate into which a P-type region is diffused. A simplified form of construction of the earth connection may be achieved using complementary diodes Fig. 5 (not shown).
Patent GB-688567-A (GB)
Title: Improvements in or relating to magnetic recording and reproducing
Inventor: WRIGHT ESMOND PHILIP GOODWIN
IPC: G11B23/06
Filed: 1950-10-06
Abstract: 688,567. Statistical apparatus; recording apparatus. STANDARD TELEPHONES & CABLES, Ltd. Oct. 6, 1950, No. 24449/50. Classes 106 (i) and 106 (iv). A method of recording and reproducing intelligence on an elongated magnetic recording medium in the form of an endless band, comprises the steps of producing in a part of the medium a signal which can be distinguished by means including reproducing apparatus from a record of intelligence, recording on a following part of the medium a batch of intelligence, running the medium through reproducing apparatus till the signal is recognized by the distinguishing means and then reproducing the batch of intelligence. Specification 685,032, [Group XL (b)], is referred to. In the described embodiment an endless band of magnetic tape is contained in a narrow box 5 and arranged to pass through a recording head 1 with associated driving rollers 2, and a reproducing head 3 with independent driving-rollers 4. A tight-tape device 7 controls the tape drive when the tape is pulled tight between the two heads. A first operator records certain information (e.g. data for entry into a digital electronic calculator) on the tape and this is later played back and checked against an entry by a second operator and the checked or corrected version re-recorded. The portion of the tape shown with black dots represents the first recording which has now passed through the reproducing head 3, the zig-zagged section 16 represents a part of the tape on which a distinguishing signal, referred to above, is recorded, or this portion may be left " clean." The tape marked with small open circles represents the portion on which the checked data has been re-recorded by the head 1; a " clean " part is' left behind the checked data to allow the latter to be completely reproduced by the head 3 before the tight-tape device 7 stops the tape. If the checked data is to be played back a second time the tape drive 4 is reversed until the head 3 recognizes the part 16 of the tape when the drive is automatically reversed again and the checked data reproduced once more. There may be a plurality of checked messages recorded on a single tape.
Patent GB-919674-A (GB)
Title: New seed-containing compositions
IPC: A01G1/00
Filed: 1961-07-06
Abstract: Oxidized polyethylene wax is emulsified by first melting it with a higher fatty acid, e.g. a C12 to C20 fatty acid, then adding a volatile amine such as morpholine, methoxy-propylamine or 2-amino-2-methyl-1-propanol, and then adding the mixture with vigorous agitation to water at just below its boiling point.  The fatty acid may be oleic, lauric palmitic or stearic acid.  Reference is also made to the use as emulsifying agents of alkylamine salts of fatty acids, e.g. monoethanolamine laurate, long chain alkylarylsulphonates, e.g. keryl-benzene sodium sulphonate and dodecylbenzene sodium sulphonate, alkyl-aryl polyether alcohols and polyoxyethylene20-sorbitan tristearate.  U.S.A.  Specifications 2,504,400 and 2,683,141 are referred to.ALSO:Polyethylene is oxidized by subjecting it in the liquid phase to the action of an oxygen-containing gas to give a product containing at least 3% of oxygen.  This product is emulsified in water with the aid of an emulsifying agent, e.g. a long-chain fatty acid (such as oleic, lauric, palmitic or stearic) and a volatile amine (such as morpholine, methoxy-propylamine or 2-amino-2-methyl-1-propanol), an alkylamine salt of a fatty acid (such as methanolamine laurate), a long chain alkyl-arylsulphonate (such as berylbenzene sodium sulphonate or dodecylbenzene sodium sulphonate), an alkylaryl polyether alcohol or polyoxyethylene-20-sorbitan tristearate.  The emulsion may be diluted with water and seeds and fertilizers added (see Group I). U.S.A. Specifications 2,504,400 and 2,683,141 are referred to.ALSO:A composition for use in the mechanical seeding of irregular soil surfaces comprises a suspension of seeds, e.g. grass clover or vetch or tree seeds, in an aqueous dispersion of a normally solid oxidized polyethylene wax having an average molecular weight between 600 and and 5000.  The dispersion may also contain an emulsifying agent, e.g. one formed by mixing a long-chain fatty acid and a volatile amine.  The dispersion may also contain a fertiliser, e.g. ammonia, urea, phosphates, ammonium nitrate or ammonium sulphate.  For application, the composition is preferably maintained under agitation, and sprayed on to the soil.  U.S.A. Specifications 2,504,400 and 2,683,141 are referred to.
Patent GB-1138437-A (GB)
Title: Process for the recovery of elementary sulphur from a hydrogen sulphide-containing gas
Inventor: AKBAR MOHAMMED
IPC: C01B17/04
Filed: 1967-05-26
Abstract: 1,138,437. Sulphur from H 2 S. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 26 May, 1967, No. 24550/67. Heading C1A. In a process for the production of sulphur by partial oxidation of hydrogen sulphide followed by catalytic reaction between the resulting sulphur dioxide and further H 2 S, the oxidation products being cooled to condense out sulphur and reheated and optionally mixed with H 2 S- containing gas prior to their introduction into the catalytic reactor, the reheating is performed using high pressure steam, which may be generated from a waste heat boiler using the heat of the initial oxidation products. The heating may be applied to the oxidation products or the H 2 S-containing gas or both before mixing and/or to the mixture. In the illustrated embodiment a H 2 S-containing gas stream 1 is mixed with sufficient air, 2, to oxidize one-third of the H 2 S to sulphur dioxide according to the equation. H 2 S X 3/2 O 2  # SO 2  + H 2 O and the resulting mixture is fed to a burner 3. The combustion gases are cooled in waste heat boilers 4, 9, 13, one of which, 9, generates high pressure steam, to a temperature in the range 125-300‹ C. when liquid sulphur separates and is removed from the system via line 14. The remaining gas is then heated, with or without addition of further H 2 S-containing gas, to 175-340‹ C. by means of high pressure steam in heat exchanger 13 and fed to a catalytic. reactor 20, packed with alumina, bauxite or similar catalyst. The gas from this reactor is cooled to 125-180‹ C. in a waste heat boiler 22 to separate sulphur as before and may then be reheated to 175-340‹ C. at 27 and introduced into a second catalytic reactor 31, to obtain greater recovery of sulphur. A third such cycle may be employed using similar apparatus (not shown) at 42. The tail gases may be burned to SO 2  which is removed by washing. This indirect heating method using steam gives flexibility of temperature control without the corrosion problems experienced with fired heaters.
Patent GB-1156652-A (GB)
Title: Coated Particles
Inventor: ANSDELL DEREK ARNOLD
IPC: C08F2/08
Filed: 1965-06-10
Abstract: 1,156,652. Coating particles. IMPERIAL CHEMICAL INDUSTRIES Ltd. 6 June, 1966 [10 June, 1965], No. 24606/65. Heading B2K. [Also in Divisions Cl and C4] Solid particles, e.g. pigments, are treated with a polymer to improve their utility in dispersion type coating compositions by making a dispersion of the said particles in a liquid continuous phase which comprises an organic liquid containing in solution a polymer which is adsorbed by the particles and a dispersion stabiliser, and modifying the polarity of the continuous phase so that the polymer becomes insoluble therein, the stabiliser being a compound containing an anchor component which becomes associated with the adsorbed polymer on the surface of the particle, and a pendent chain-like component which is solvated by the modified continuous phase and provides a stabilising sheath around the particles. The particles may be dispersed in the polymer solution and the stabiliser then added to the dispersion before the modification of the continuous phase. The polarity of the continuous phase may be modified by adding to it a non-solvent for the polymer, or a continuous phase comprising a mixture of solvent and non-solvent for the polymer may be used and the polarity modified by removing some of the solvent portion. Solid  particles exemplified are those of TiO 2 , antimony oxide, carbon and vegetable black, red iron oxide, aluminium flake, thioindigo red and a coated phthalocyanine blue. The polymers used are exemplified as co-polymers of methyl methacrylate and methacrylic acid; styrene and methacrylic acid; methyl methacrylate, acrylic acid and acrylamide; lauryl methacrylate and methacrylic acid; methyl methacrylate and itaconic acid; methyl methacrylate and dimethyl amino ethyl methacrylate; and polyvinyl pyrrolidone with poiymethyl methacrylate. Stabilisers specified are given as having as anchor components polymethyl methacrylate; polylauryl methacrylate, a co-pcilymer of methyl methacrylate and methacrylic acid; and in certain cases the adsorbed polymer present in the solution with the solvatable component given as degraded natural rubber; polyethylene glycol methacrylate; polystyrene; polymethyl methacrylate; a random copolymer of methyl methacrylate; polylauryl methacrylate; the tetrames of 12- OH stearic acid and polyvinyl pyrrolidone. Other combinations of polymer, anchor component and solvatable component, in addition to suitable combinations of organic solvents and modifying liquids are given in the specification.
Patent GB-1206737-A (GB)
Title: Improvements in or relating to processing water containing slags suitable for us in cement manufacture and other purposes and novel cement composition
IPC: C04B7/14
Filed: 1969-05-14
Abstract: 1,206,737. Slags and slag cements. N. V. HERWIE. 14 May, 1969 [1 April, 1969], No. 24628/69. Headings C1H and C1K. Granulated slag is dry ground (defined) mixed with up to 20% b.v. of liquid fuel and then burned to dry the slag. The product has latent hydraulic properties and can be mixed with cement (which can be finer than normal) to form concrete. Soil can be stabilized and ceramic material (e.g. clay) dried by admixture with the slag product.
Patent GB-508153-A (GB)
Title: Improvements in and relating to dart-boards
IPC: F41J3/00
Filed: 1938-08-22
Abstract: 508,153. Dart boards. KEMPNER, B., and KAY (SPORTS & GAMES), Ltd. Aug. 22, 1938, No. 24638. [Class 132 (iii)] Apparatus for playing darts comprises a board 1 provided with playing divisions 2, and a supporting structure 3 in the form of a box carrying on its front wall the numbers 6 corresponding to the divisions, the board being adjustable in the box by rotation so that the numbers may be associated with different divisions to ensure even distribution of wear. The supporting structure may be in the form of a cabinet having a door or doors to cover the dart-board. The board may be formed in the manner described in Specification 487,183: