baber/WOPTO huggingface dataset:
Patent GB-824148-A (GB)
Title: Improvements in or relating to photo-reproduction material
IPC: A61F13/15
Filed: 1957-12-20
Abstract: 2 - Anilido - sulphonyl - diphenylamine - 4 - diazonium chloride is made by allowing 4-nitrodiphenylamine-2-sulphochloride in benzene and aniline solution to stand to form the sulphanilide, catalytically reducing this to the amino derivative in dioxane and diazotizing with sodium nitrite and hydrochloric acid in dimethyl formamide. The product is purified with ether.  2 - [p - Toluene - sulphonyl - amino] - diphenylamine - 4 - diazonium chloride is made by reacting 2-amino-4-nitrodiphenylamine in dioxane with p-toluene sulphochloride in the presence of pyridine, treating the reaction product with sodium hyposulphite to reduce the nitro group, precipitating the amino compound thereby formed with glacial acetic acid and diazotizing in alcoholic solution containing hydrochloric acid by isoamyl nitrite.  The product is purified with ether.  41 - Bromo - diphenylamine - 4 - diazonium bromide is made by heating the corresponding diazonium chloride in glacial acetic acid saturated with gaseous hydrogen bromide, treating the solution with animal charcoal, filtering, precipitating the diazonium bromide with acetic ester, and recrystallizing from ethanol.  41 - Chloro - diphenylamine - 4 - diazonium bromide, 21 - methoxy - diphenylamine - 4 - diazonium bromide and 41-methoxy-diphenylamine-4-diazonium bromide are made by heating the corresponding diazonium chlorides in 48% aqueous hydrobromic acid, with analogous animal charcoal and purification treatments.  2 - Methoxy - carbazole - 3 - diazonium bromide is made by heating 2-methoxy-carbazole with acetic anhydride, nitrating the acetylation product, catalytically reducing the resulting nitro group to amino, heating with methanolic potassium hydroxide to split off the acetyl group and form 2-methoxy-3-amino-carbazole which is isolated as the hydrochloride, diazotizing this in hydrobromic acid solution, and finally salting out the product with saturated potassium bromide solution.
Patent GB-1356280-A (GB)
Title: Production of maleic anhydride
IPC: B01D5/00
Filed: 1971-08-24
Abstract: 1356280 Maleic anhydride recovery PROLIZENZAG 24 Aug 1971 [25 Aug 1970] 39692/71 Heading C2C Liquid maleic anhydride is recovered by cooling the products of the catalytic oxidation of benzene to a temperature between the condensation temperature of maleic anhydride and the dew point of water vapour and causing them to flow upwards through vertical straight tubes which are externally cooled at a bulk velocity of 8000 to 15 000 cubic metres per hour per cubic metre of the interior of the tubes. The internal surface temperature of tubes may be 58 to 60‹ C. and the gas may enter the tubes at 120- 150‹ C. and leave at 60-62‹ C. All the maleic anhydride may be removed at the upper end of tubes and separated from the gases or some of the anhydride may flow downwards to be collected at the bottom of the exchanger.
Patent GB-1203489-A (GB)
Title: Improvements in or relating to shrouded gas burners
Inventor: HANCOCK JOHN
IPC: F23D14/48
Filed: 1968-08-20
Abstract: 1,203,489. Shrouded gas burners. GEO. BRAY & CO. Ltd. 29 July, 1969 [20 Aug., 1968], No. 39712/68. Heading F4T. A gas burner suitable for natural gas comprises a burner nozzle 1 having a plurality of gas orifices 3, 4 so dimensioned as to produce diverging flames which coalesce only in the region 9 of the gas orifices, and a shorud 7, the or each wall of which is shaped and dimensioned so that a given flame passes in close proximity to the peripheral edge thereof, the peripheral edge being at or slightly beyond the point of divergence 8 of adjacent flames. As shown in Fig. 1, the nozzle has a part-spherical projection 2 in which are formed eight circular orifices 3, 4 normal to the surface of the nozzle in a generally elliptical arrangement. The nozzle 1 is mounted in a socket 5 having an annular shoulder 6 to receive the shroud 7. In another arrangement, Figs. 6, 7, 8 (not shown) four orifices in the nozzle are arranged to produce a generally circular plan flame. In Figs. 9-13 (not shown) five orifices are arranged in a row in the nozzle to produce a flat flame, and in Figs. 14-18, eleven orifices in a single row with a spacing of 18 degrees between adjacent orifices produce a generally semicircular flame, the shroud in this case comprising two generally semicircular wall portions one on each side of the flame and two flat wall portions connecting their lower edges. A number of further arrangements are described but not shown, together with suggested dimensions for the orifices, nozzles and shrouds.
Patent GB-1002125-A (GB)
Title: Improved gymnastic equipment
IPC: A63B9/00
Filed: 1960-11-19
Abstract: 1,002,125. Gymnasium apparatus. H. CARR, and R. V. CARR, [trading as CARR GYMNASIUM EQUIPMENT]. Nov. 20, 1961 [NOV. 19, 1960; March 23,1961], Nos. 39860/60 and 10573/61. Heading A6M. A combined post and trestle structure, for gymnastics uses comprises a collapsible trestlelike support, at least one post displaceably attached to the support and releasably bracing means adapted alternatively to brace the post to the support in erection of the structure and allow collapse of the structure. Two ladder like frames 29, 33 pivot on a top hinge 30. The hinge has end extensions which mount two upright posts 36, 37 with holes 36a, 37a for longitudinal bars. The lower ends of the posts are connected to the ends of a central rod 40 which is releasably connected by frames 38, 39 pivoting on rungs 32, 35 on the frames 29, 33. The structure is collapsed by disengaging the bracing frames from the rod 40 and pivoting the frames together. The structure may be secured to the floor by devices 41, 42 pivoting on the base rungs and secured by a screw 46 movable in a slot in an arm 43, and engaging in a screw nut fitting in the floor. The end of each arm has a rubber flow engaging pad 44. Specification 933,812 is referred to.
Patent GB-1358681-A (GB)
Title: Testing apparatus for ignition systems
IPC: F02P17/02
Filed: 1971-08-27
Abstract: 1358681 Pulse shaping circuits ROBERT BOSCH GmbH 27 Aug 1971 [29 Aug 1970] 40216/71 Heading H3T [Also in Division G1] An irregular pulse train a is converted into a rectangular pulse train f of the same duration. Pulse train a is fed through a limiting and smoothing network 10-18, wherein NTC resistor 18 compensates for temperature variations in the other components, to transistors 19, 21, the output voltage c being prolonged by time t x1 . These pulses form one input of an AND gate 24, whose other input is derived from a parallel link containing an inverter 26 and monostable multivibrator 25 whose unstable duration t x2  is equal to t x1 . The output f from the AND gate is thus a rectangular pulse train whose duration is equal to that of pulse train a.
Patent GB-1135856-A (GB)
Title: A method of modifying alkylene glycol alginates
Inventor: MCDOWELL RICHARD HENRY
IPC: A23L29/256
Filed: 1966-09-08
Abstract: 1,135,856. Fish food. ALGINATE INDUSTRIES Ltd. and R. H. McDOWELL. 11 Sept., 1967 [8 Sept., 1966], No. 40235/66. Heading A2B. [Also in Divisions B2, C3 and C6] A fish food based on soya meal, grass meal, fish meal, dried milk and ground wheat contains 16 2/3% by weight of sodium carbonate treated propylene glycolalginate (see Division C3) which acts as a waterresistant binding agent for the fish food when formed into granules.
Patent GB-947077-A (GB)
Title: Improvements in sheet metal cutting machines
IPC: B23D19/04
Filed: 1960-11-23
Abstract: 947,077. Shearing. B. E. BOOTH. Nov. 23, 1960 [Dec. 15, 1959], No. 40338/60. Heading B3W. A slot-cutting shears for severing corrugated sheet by disc-cutters 10, 13, 13a comprises a frame 5, part of which passes through the slot. Supports 1, 2, shaped to fit over a roof-beam, are connected by a member 4 which supports plates 7, 7a. These carry the frame 5 and a shaft 12 mounting the cutters 13, 13a, which are pressed by springs 16 against the cutter 10. Plates 6, 6a on the frame 5 carry a shaft 9 driving the cutter 10. An electric drill 26 fixed to the member 4 may drive the shafts 9, 12, through gearing 21-25, or the gear 24 may be removed and the machine driven by a crank having a gear for working with gear 23. The shafts 9, 12 and member 4 may be of circular or square cross-section and telescopic. An inclined edge 5c on the frame deflects the strip removed by the cutters.
Patent GB-1004353-A (GB)
Title: The use of quaternary compounds of hexamethylaminotetraphosphine in motor gasolines
IPC: C10L1/26
Filed: 1961-11-10
Abstract: Motor gasoline compositions of which at least 45, and preferably at least 50% by volume, distils over at 100 DEG  C. are improved in respect of anti-icing properties by adding 10-500, preferably 20-200 p.p.m. by volume of a quaternary salt containing product, prepared by reacting hexamethylaminotetraphosphine with a C6 to C20 alkyl bromide or chloride in a molar ratio of 1 : 3, and optionally also a small proportion of detergent additive for fuels, e.g. 10-1000 p.p.m. by vol. of e.g. a mono-ester of a fatty acid and polyhydric alcohol. Examples are given of compositions wherein the alkyl halides used to form the additives are n-dodecyl bromide, n-octyl bromide and n-octadecyl bromide.  Properties of compositions containing the above are compared with compositions containing other commercial anti-icing additives.ALSO:Mixtures containing quaternary salts of hexamethy aminotetrapbosphine and a C6 to C20 alkyl chloride or bromide, are made by heating a mixture thereof in the molar ratio of 1 : 3.  The structure of the quaternary is believed to be [P4N6(CH3)6Alkyl]+halide-.  In the examples preparations using n-dodecyl, bromide, n-octyl bromide and n-octadecyl bromide are described.
Patent GB-1425340-A (GB)
Title: Method of engraving a printing member by means of a beam of energy
IPC: B23K26/082
Filed: 1973-08-28
Abstract: 1425340 Engraving by radiant energy beams; making printing members EUROPEAN ROTOGRAVURE ASSOCIATION 28 Aug 1973 [25 Aug 1972] 40539/73 Headings B3V and B3A [Also in Division H1] Individual surface cavities are formed in a printing member 6 using a radiant energy beam, e.g. an electron or laser beam, which is moved relative to the printing member 6 along a path, e.g. a spiral path, which is determined by the tone intensity of that point on an original picture to be reproduced with which the respective cavity corresponds. The width of the energy beam is smaller than the maximum dimension of each cavity produced. In one embodiment, a drum 1 carrying a picture to be reproduced and a printing cylinder 6 are connected by a lead screw engaged by a nut so that the drum 1 and cylinder 6 are axially displaced when rotated by a motor (8) (Fig. 8, not shown). The picture on the drum 1 is scanned by a beam from a light source 11 which beam is separated by a prism 12 into the primary colours which are directed by reflectors 13 on to photomultipliers 14 for converting the light signals into electrical signals. The latter are converted in an ultrasonic device 3 into sin and cos values which are transmitted to devices 4a, 4b for deflecting a pulsed laser beam from a carbon dioxide source 5 such that it follows a spiral path on the cylinder 6, Fig. 1. The total number of pulses applied is the same for each cavity produced, some of the pulses being masked by a mask within the deflecting devices 4a, 4b according to the strength of the tone gradation of the point on the picture scanned. The device 3 may control a beam focussing device 7.
Patent GB-1275296-A (GB)
Title: Transferring device
IPC: B65B23/14
Filed: 1969-08-14
Abstract: 1275296 Feeding biscuits to endless conveyer carriers SCHWEIZERISCHE INDUSTRIEGES 14 Aug 1969 [15 Aug 1968] 40577/69 Heading B8A Biscuits 1 are transferred from a shoot 2 to a conveyer carrier 11 by a pusher 10. Each biscuit raises a displaceable part 4 of the shoot wall against the resistance of a spring 9. The initial position of the part 4 may be adjusted by a screw 8.
Patent GB-1311172-A (GB)
Title: Production of alcohols
IPC: C07C29/04
Filed: 1970-08-24
Abstract: 1311172 Production of alcohols UNIVERSAL OIL PRODUCTS CO 24 Aug 1970 [27  Aug 1969] 40621/70 Heading C2C Alcohols are produced by reacting an olefinic hydrocarbon with water in the presence of an acidic catalyst and a polyether at an elevated temperature and recovering the resultant alcohol. Starting from propene, isobutylene, cyclohexene, cyclopentene, and 1-octene, there are obtained in Examples 1, and 3-7, isopropyl alcohol, t-butyl alcohol, cyclohexyl alcohol, cyclopentyl alcohol and sec.-octyl alcohol, respectively, using 1,7-dioxane, diethyl- and dimethyl-ethers of diethylene glycol and dimethyl ether of triethylene glycol as the polyethers. The reaction is preferably carried out at a temperature ranging from 75‹ to 250‹ C.
Patent GB-1172759-A (GB)
Title: Device for Conveying Gravel or the like.
IPC: E02F3/92
Filed: 1967-09-06
Abstract: 1,172,759. Suction apparatus. W. SCHAEZLE [trading as LUDWIG SCHNELL K.G. DRUCKFORDERTECHNIK]. 6 Sept., 1967 [9 Sept., 1966], No. 40679/67. Heading E1F. [Also in Division F1] A device for conveying materials, such as 'gravel, comprises a suction head 1 having mounted on an outer jacket 5 of a pressure medium chamber 7 surrounding the head, a rotatably driven sleeve 12 provided with precutting blades 25. A flange 4 is used to connect a conveying pipe and the pressure medium is introduced through an opening 8 into the chamber 7. The sleeve 12 carries an exchangeable nozzle 22 forming a chamber from which an annular passage 24 leads into the suction head. Pre-cutting blades 26 are provided on the nozzle 22, the blades 25, 26 being flat iron bars or spoon-like trowels and being disposed in a mutually staggered arrangement along a helical line on the sleeve 12 and the nozzle 22. The .pressure medium may be liquid but is preferably compressed air; it produces suction as it passes into the head through the passage 24 and entrains the gravel drawn into the head.
Patent GB-937731-A (GB)
Title: Improvements in or relating to liquid-fluid contact trays
IPC: B01D3/16
Filed: 1961-11-14
Abstract: 937,731. Contacting liquids with gases. FRITZ W. GLITSCH & SONS Inc. Nov. 14, 1961 [Nov. 21, 1960], No. 40726/61. Class 55 (2). [Also in Group XXIX] A liquid-fluid contact tray 10 has a plurality of vapour orifices 11 each having a separate fixed member 12 overlying the orifice to provide a flow passage 15, the member 12 being attached to the tray 10 by inclined legs 13 depending outwardly and contacting the tray at points spaced from the edge of the orifice 11, thus forming apertures 16 between the tray 10 and the legs 13. Fluid is directed by the apertures 16 at an angle to the fluid discharged through the passage 15. The member 12 and the legs 13 are integral with the tray 10, being punched therefrom, and the bottom edge of the perimeter of the member 12 has a sharp, depending lip 20, see Fig. 13. The orifices 11 and members 12 may be rectangular, and the members 12 may be inclined to the plane of the trays, see Fig. 11 (not shown). In another embodiment, Fig. 13, a vertically movable cap 39 is provided to meter the fluid ascending through the orifice 11. Slots 42 in a skirt 40 on the cap 39 accommodate the legs 13. Lugs 41 on the skirt 40 limit upward movement of the cap 39. In this embodiment, the member 12 may have an opening in its centre or a plurality of openings in its perimeter, Fig. 16 (not shown). The cap 39 may carry hoods enclosing the legs 13, or the lower edge of the skirt 40 may have slots of various sizes, presenting a castellated appearance. In another embodiment, Fig. 25, a valve element 78 is provided inside the fixed member 72 which may have an opening 81. Legs 79 on the member 72 co-operate with slots 80 in the tray 73 to limit rotation of the element 78 by engagement with depending lugs on the perimeter of the element 78 which space it from the tray 73. The element 78 may have dimples on its upper surface to prevent sticking to the member 72. In a modification, the element 78 has upstanding legs and the legs 79 are omitted, and the element 78 has a depending lip on its perimeter, see Fig. 22 (not shown). Further, the element 78 may have a central opening, see Fig. 24 (not shown).
Patent GB-1529337-A (GB)
Title: Phase locking system for television signals using digital memory techniques
IPC: H04N5/073
Filed: 1975-10-06
Abstract: 1529337 Television NIPPON ELECTRIC CO Ltd 6 Oct 1975 [5 Oct 1974 15 Oct 1974] 40834/75 Heading H4F Phase locking of a ¢ line offset television signal (NTSC) to a reference synchronizing signal at a local transmission station is performed by the described circuit. In such a signal the phase relationship between the colour subcarrier and the normal sync. changes cyclically from field to field in a manner repeating itself every four fields (i.e. phase relationship between subcarrier and sync. for field n # that for field n  4m where n and m are any integers) yielding a field cycle of four field period. Composite NTSC signals are binary coded at 2, Fig. 2. A burst control oscillator 3 derives the subcarrier CB. Carrier CB and separated sync. signals are applied to a "flag signal generator" 29. The flag signal is a two bit binary code indicative of which of the four possible subcarrier: sync relationships holds for the current field. This flag is added to the binary coded video signal in the first two bit positions of the first line of each field by adder 6. After serial to parallel conversion 7, the eight bit binary coded video signal is loaded into a SINGLE FIELD CAPACITY MEMORY 8, 9, and 10 in the following manner. Successive eight bit words are sequentially loaded into memory subunits 8, 9, 10, 8, 9, ... While a given address location in a particular subunit is being accessed for input purposes, the equivalent address locations in the other two subunits are accessed for output purposes under the control of the reference synch signal. Because the locally generated synch and the reference synch are not identical buffer memories 17, 18 and 19 are employed. The flag signal is extracted from the output video and used to detect a phase difference in the field cycle between the read out signal and the assured field cycle which, if left uncorrected, would result in loss of colour information. Correction is effected by control of the read out timing such that when found necessary a jump of half a line in the read out address locations is caused by read out address generating units 16. Thus the correct phase relationship between the subcarrier and synch signals is maintained. The method of flag signal generation is described w.r.t. Figs. 1, 4 and 5 (not shown). The timing of input and output to the memory is described w.r.t. Fig. 3 (not shown). The four possible field cycle phase relationships and requisite line jumping for each case are described w.r.t. Fig. 6 (not shown). In  line offset systems (e.g. PAL) the field cycle period is increased to eight fields and the circuit is accordingly modified. Where field insertion signals (e.g. International or domestic test signals) occupy the vertical blanking intervals a special arrangement of the memory is required with appropriate addressing management modifications Figs. 8 and 9 (not shown).
Patent GB-1434539-A (GB)
Title: Method and apparatus for texturizing flocked fabric
IPC: D06C23/00
Filed: 1973-08-30
Abstract: 1434539 Finishing fabrics UNITED MERCHANTS & MFRS INC 30 Aug 1973 [24 Oct 19721 40916/73 Heading D1S A flocked fabric 12 is texturized by wetting at least the flocked portion of the fabric rapidly heating the flocked side of the fabric with a plurality of flexible beaters 30, and drying the fabric. In one embodiment, Fig. 1, the fabric 12 is fed from a roll 13, around an idler roll 14, beneath a spraying head 40 having nozzles 42 to uniformly wet the fabric 12, through flock orientation means 28, over a driven roll 18 having gripping pins 19 -thereon, beneath a dryer 46 having a chamber 48 with perforations 49 to direct drying air onto the fabric 12, and is rewound on a roll 27. The means 28 comprises beaters 30 mounted on a rapidly rotatable roll 32 by a clamp 38. The beaters 30 may comprise heavy nylon monofilaments 304, Fig. 3A, the end portions of which whiplash the fabric, or flexible heavy rubber or plastics material, e.g. nylon, beaters 310, Fig. 4. Alternatively, the beaters may each comprise a nylon monofilament 318 to which is knotted or adhered a rubber or plastics member 320 which may be shaped as shown in Fig. 5A or as a circular button, Fig. 6A (not shown), or with scalloped edges, Fig. 7A (not shown). The wetting agent supplied by the head 40 may be water or an aqueous mixture of water and a finish or resin, e.g. a resin to impart soil resistance or wrinkle resistance or which upon drying will assist in stabilizing the design pattern. In another embodiment, Fig. 2, a series of radial brushes 142 are rotataibly mounted on a roll 126 located between the flock orientation means and the wetting means. The brushes 142 are parallel to the beaters 140, rotate in the oposite direction to the beaters 140 and are located to correspond with the spaces between adjacent beaters.
Patent GB-1098546-A (GB)
Title: Improvements in jet pulveriser mills
IPC: B02C19/06
Filed: 1965-09-28
Abstract: 1,098,546. Jet pulverizers. N. H. ANDREWS. Sept. 28, 1965 [Oct. 2, 1964], No. 41209/65. Heading B2A. A jet pulverizer comprises a grinding and classification chamber 56 surrounded by a peripheral wall 62 fitted with nozzles 64, venturi-type feeding means 78, an outlet pipe 72, and a rotary impeller disc 94 formed with vanes 96. The disc 94 is rotated by a driven shaft 82 provided with cooling fins 89. The wall 62 may be serrated. In a modification, Figs 3 and 4 (not shown), mechanical screw feed means are employed and a fan is provided downstream of the outlet pipe. In another modification, Figs. 5 and 6 (not shown), a small number of unusually large jets are employed and the outlet pipe extends nearly to the impeller disc. In a further modification, Figs. 7 and 8 (not shown), the grinding and classification chamber has an upstack pipe connected to a semi-circular section communicating with a straight section and an outlet opening. In another modification, Fig. 9 (not shown), the nozzles are situated at the bottom of a trough formed by a radially outwardly tapering portion of the peripheral wall and the vanes extend into the trough and are tapered to conform to the shape of the wall. In a further modification, Fig. 10 (not shown), a two-stage mill is provided. In a still further modification, Fig. 11 (not shown), the direction of the injector venturi is angularly opposed to the plane in which the vanes rotate.
Patent GB-921868-A (GB)
Title: Sheet metal receptacle and method of making
IPC: A21B3/13
Filed: 1961-11-17
Abstract: 921,868. Pans. EKCO PRODUCTS CO. Nov. 17, 1961 [Sept. 7, 1961], No. 41212/61. Class 66. [Also in Group XXII]. A rectangular sheet metal pan comprises a blank bent to form a bottom 10 and side walls 11, 12 joined by doubling up the material at the corners to form two ply corner folds 13, bending each corner fold against the outer surface of one of the side walls and pressure welding the junction between each side wall and the side wall joined thereto to join the plies of the fold together and to the side of the pan throughout the length of the fold. The pan is finally die-stamped to form an internal spherical carton at the junction between the bottom and side walls 11, 12, a wire 18 is retained by a curled closed bead along the upper edge of the walls and the pan cleaned and re-surfaced with a protective coating, e.g. tin (see Group XXII).