baber/WOPTO huggingface dataset:
Patent GB-915353-A (GB)
Title: Fibrous batt
IPC: D01D5/04
Filed: 1959-06-24
Abstract: <PICT:0915353/IV(a)/1> A fibrous batt is made by extruding a liquid comprising an organic filament-forming material through a plurality of orifices into a gaseous atmosphere to effect solidification of the material in the form of a multiplicity of continuous filaments and rendering turbulent the gaseous atmosphere in a zone in which the forming filaments are in a mutually adhesive condition, whereby the filaments come into contact and coalesce at randomly spaced points along their lengths and form a three-dimensional lace-like fibrous structure, and collecting the structure at a linear rate substantially below the linear rate of extrusion of the filament-forming material as a batt of a denier of at least 40,000, preferably 55,000-100,000.  Desirably, the filament-forming material is extruded at a linear speed more than 400 times the linear speed of collection.  Specified materials include cellulose ethers and esters, e.g. ethyl cellulose, cellulose acetate, cellulose propionate, cellulose butyrate, cellulose acetate-butyrate, ripened cellulose esters and unripened cellulose esters, e.g. cellulose triacetate, polyamides, e.g. nylon 6 or 66, polyesters, e.g. polyethylene terephthalate, acrylonitrile polymers and copolymers, olefinic polymers, e.g. polyethylene and polypropylene, polyvinyl chloride, polyvinylidene chloride, and vinyl chloride-vinyl acetate copolymers. In a preferred method, a solution of cellulose acetate in a volatile solvent is extruded under a pressure of 600 psig. into an evaporative atmosphere.  This may be effected by using spinneret orifices of 0,04 mm. or less diameter, with linear rates of extrusion of 700 m./min. or more.  Continuously with its production the batt is condensed into a cylindrical rope of the approximate cross-sectional area of a cigarette and the rope is converted to cigarette filter tips.  In apparatus as shown, spinning solution is extruded from spinneret 18 into the cabinet 11, which is supplied with hot air entering at 15 and leaving at 16.  Jets of air from pipes 20 and 21 draw and entangle the filaments, which coalesce at the points of contact to form a fibrous batt, which falls between baffles 22 and 23, serving to prevent lateral spread of the batt, on to the endless porous support 12 (e.g. a wire screen), from which the batt is conveyed to the trumpet 27, where it assumes the dimensions of a cigarette.  The batt is then wrapped with paper in a cigarette-wrapping machine 29 and the resulting cylindrical structure 32 cut by blade 33 to form filter tips 34.  In place of the elongated spinneret 18 shown, a conventional circular spinneret, or several such spinnerets, may be used.  The porous support 12 may be omitted if the entangled mass of filaments is sufficiently coherent.
Patent GB-295131-A (GB)
Title: Improvements in or relating to variable speed gears
IPC: F16H15/14
Filed: 1927-08-18
Abstract: 295,131. Whittle, O. L. Aug. 18, 1927. Variable - speed friction gearing com prises a double o series arrangemen of the gearing described in Specification 255,349 ir which there are a plurality of tapering plates 10 axially movable on one shaft 3 with intervening spaces adapted to receive periphera positions of plates or engaging members 13 axially movable upon another shaft 6, which is moved parallel to itself to vary the speed. A second similar variable gear 14, 12 connects the shaft 6 to a third shaft 4. The third shaft 4 may be in line with the first shaft 3 as shown, and may be adapted to be connected to it by a clutch for direct drive. The third shaft may alternatively be parallel to the shaft 3 and on the other side of the shaft 6.
Patent GB-572484-A (GB)
Title: Improvements relating to the refining of tin-base white metals
IPC: C22B25/00
Filed: 1943-12-31
Abstract: 572,484. Refining tin base white metal. STONE & CO., Ltd., J., MURPHY, A. J., and FRENCH, A. H. R. Dec: 31, 1943, No. 21881. [Class 82 (i)] Tin-base white metal contaminated by lead or zinc or both is freed from these impurities by covering the molten alloy with a layer of stannous chloride and bubbling air through the molten mass. This refining may take place in an iron vessel, the air being introduced by means of a pipe terminating in a perforated ring at the bottom of the vessel. When both zinc and lead are to be removed, the treatment is preferably carried out in two stages. The zinc is mainly removed first, then fresh flux is added for the removal of the lead. Two specific alloys are referred to ; the first consisting of 87¢ per cent tin, 6¢ per cent antimony and 6 per cent copper, the second consisting of 82 per cent tin, 4 per cent lead, 10 per cent antimony and 4 per cent copper.
Patent GB-168494-A (GB)
Title: Improvements in emulsifiers
IPC: A47J43/044
Filed: 1920-07-21
Abstract: 168,494. Drucker, W. J. July 21, 1920. Batch - mixers with rotary containers.- An emulsifier or mixing-machine, particularly intended for making mayonnaise, comprises a rotatable receptacle and a stationary stirrer, the stirrer being secured to a lug depending from a frame above the receptacle, means being provided to permit lateral adjustment of the stirrer. As shown in Fig. 1, the receptacle 12 stands upon a platform 9 which is rotated by a motor 8. The lower edge of the receptacle rests in a groove 10 on the platform 9, and has notches which engage projections in the groove. A socket formed in the centre of the bottom 13 receives a stud 16 on the platform, so that the receptacle is prevented from moving in the platform and is forced to rotate with it. A frame 19, which supports an oil-container 20, extends over the receptacle, and has a depending lug 21 which is so situated that when a plate 25 supporting the stirrer is clamped to the lug by a screw 23, the axes of the stirrer and the receptacle are coincident. The stirrer is secured to the plate 25 by means of bolts 26 which pass through larger holes 27, Fig. 6, in the plate. Thus by slacking the bolts 26, the stirrer may be adjusted laterally to accommodate it to the receptacle.
Patent GB-597779-A (GB)
Title: Improvements relating to electrically operated soot blowers for steam boilers
IPC: F28G15/00
Filed: 1945-08-27
Abstract: 597,779. Sootblowers. HOPKINSONS, Ltd., DALE, W. B., and BROWN, R. L. Aug. 27, 1945, No. 21922. [Class 99 (ii)] [Also in Group XXXVII] Control gear for an electrically-operated sootblower installation using steam as the cleaning fluid and having a motor-driven main steam valve, comprises a switch' h for setting the valve in a partly-open position for warming up, and switches i, g for fully opening and closing the valve, with corresponding limit switches o, p and m<1>, and a solenoid-actuated switch 6 which is operated when the valve is fully open to close the circuit of a motor 9 of a sequence switch 10 for successively operating the blowers, the valve being closed through a connection q from the last contact of the sequence switch. The valve-closing limit switch m<1> is arranged in the " fully-open " circuit r to prevent the valve being fully opened before being previously set in the " warming-up " position. Signal lights. 2, 3, 4 indicate the position of the valve. A change-over device e, f opens the circuit of the sequence switch motor and frees a hand wheel b for alternative operation of the sequence switch. A pressbutton switch 12 is used in conjunction with the hand wheel to prevent indiscriminate actuation of the blowers. A press-button switch d is provided for stopping the actuation of the valve, and a cam-operated switch 15 is provided to prevent the sequence switch coming to rest in a non-operative position. The control gear is housed in a dust-proof cabinet having on its front panel the switches d, g, hand i, the change-over device e, f, the hand wheel b, a diagram of the blower installation and a light signal showing the blower in operation.
Patent GB-695677-A (GB)
Title: An arrangement of a milking machine pulsator and a milk pail cover
IPC: A01J5/14
Filed: 1951-09-19
Abstract: 695,677. Cow-milkers. AKTIEBOLAGET SEPARATOR. Sept. 19, 1951 [Oct. 5, 1950], No. 21970/51. Class 84 A pulsator is mounted on a milk pail cover to be displaceable with regard to the cover whereby aligned ports iri the pulsator lower surface and the seating on the cover, are thrown out of register. By this means water is prevented from entering the pulsator when the pail is washed. As shown the pulsator 4 is pivoted and the vacuum port 14 of the pulsator is displaced from the full line position (line a-b) to the broken line position (line c-d). In the latter position the port 14 is out of register with that provided in the pail cover. The port in the cover'may be in a valve on the cover.
Patent GB-1309992-A (GB)
Title: Apparatus for synchronisation of the movement of a following member  with that of a leading member particularly for the automatic  synchronisation of the rotary motion of an aerial and a deflection  coil in a radar installation
IPC: G01S7/12
Filed: 1971-04-19
Abstract: 1309992 Radar FRIED KRUPP GmbH 19 April 1971 [19 Feb 1970] 22058/71 Heading H4D As described (but claimed generally for any member to be synchronized to another member) a radar cathode-ray tube deflexion coil 7 Fig. 1 is synchronized with a radar aerial 1 by an additional arrangement Fig. 2 in which a timer 12 is controlled by pulses U 1 , U 2  from cam switches 8, 9 Fig. 1 to develop a voltage U 7  Fig. 3 from an integrator 17, which is applied together with a voltage U 6  (developed by a bi-stable 16) to a "delay" circuit 24 incorporating a Schmitt trigger 21 to yield a voltage U 9  to cause contact 10 to interrupt current to a synchronous motor 5. Time interval t L  must be greater than a charging time predetermined by RC network 19, 20. Synchronization may necessitate two or more successive revolutions of the aerial.
Patent GB-409956-A (GB)
Title: Improvements in and relating to the assembly of electric wires or conductors
IPC: G10B1/04
Filed: 1933-08-08
Abstract: 409,956. Supporting conductors. HIRST, A. E., 104, North Acton Road, Willesden, and COMPTON ORGAN CO., Ltd., J., Chase Road, North Acton, both in London. Aug. 8, 1933, No. 22207. [Class 36.] A device for holding together a number of wire conductors a, such as the conductors of an electric organ comprises a pile of flat members b, preferably of fibre or phenolic condensation product, secured together by rivets c, adjacent members, between which the wires individually pass, being spaced by washers g. Each member is formed adjacent one end with moulded or stamped-out projections e<1>-e<4> between which the wire is passed, the projections being so arranged that the wire is deformed and secured in position by them. Lateral movement of the wire is limited by a projection f formed adjacent the other end of each member b.
Patent GB-587499-A (GB)
Title: Improvements in and relating to jigs and work holders for feeding work pieces in drilling and like machines
IPC: B23B47/28
Filed: 1944-11-13
Abstract: 587,499. Work-feeding and holding devices ; drilling. HAY, C. H. Nov. 13, 1944, No. 22341. [Class 83 (iii)] A device for feeding work-pieces to a machine such as a drilling machine has a channel 10<1> in which the operator places a work-piece 24 with one hand, whereupon he actuates a lever 19 with the same hand to advance the work along the channel to eject the finished work 24a and place the work 24 in operative position, thus leaving his other hand free for actuating the tool. The device has a base 1 for attachment to the bed of a drilling &c. machine and is provided with a raised bed 2 on the top of which plates 10 are secured to define the channel 101 between them. Lugs 2b<1> at the corners of the base 2 engage slots 10a in the plates so that the latter may be replaced by plates having slots of different depths to vary the width of the channel to suit the work. Alternatively, the slots 10a in different sets of plates may be the same depth, but the plates may have different widths. The lever 19 is attached to a gear 18 pivoted in a bracket 21 attached to an extension 5 of the base 1, this gear engaging a gear 17 carrying an arm 16 connected by a link 15 to a slide 11 movable along the extension 5. The slide 11 has a. work-feeding bar 14 attached thereto by a plate 13a and a clamping bar 12 secured to its underside by a clamp 11b. A slide 6 is vertically adjustable on a pillar 3 on the base 1 and is clamped thereto by a screw and nut 7, 7a, the slide carrying a guide bush 6b for the tool. In operation, the operator picks a workpiece from loose assemblage in a tray 22, places it in the channel 10<1> and then actuates lever 19 to advance the feed bar 14 and clamping bar 12 from the positions shown in Fig. 2. The upturned end 12a of the latter rides off the base of a clamping plunger 8 in the bed 2 and so allows the plunger to drop on to a resilient support 9 to release the machined work 24a which may then be ejected on to a shoot 28 by the advancing work 24. When the latter reaches the required position under the bush 6b, where it is held by the resilient support 9 acting through the plunger 8, further advance of the slide 11 is prevented by a screw 11d thereon engaging an adjustable stop. The operator then retracts the lever 19 causing the clamping bar 12 to engage the plunger 8 as shown and clamp the work against the bush 6b. With one hand the operator next brings the tool into operation whilst with the other hand he places a new piece of work in the channel 10<1>. The upper end of the plunger 8 is bevelled to allow the work to be introduced between the plunger and bush 6b and the end of the feed bar 14 may be provided with a fin or other formation to engage a recess &c. in the work so that the latter may be positioned for a tooling operation to be performed in fixed relationship to some other formation on the work.
Patent GB-1076357-A (GB)
Title: Preparation of perfluoroalkylbenzenes
Inventor: FIELDING HAROLD CROSBIE
IPC: C07C17/32
Filed: 1965-05-26
Abstract: The invention comprises perhalogenated aromatic compounds in which one or more of the fluorine atoms attached to the nucleus of one of the compounds hexafluorobenzene, pentafluorochlorobenzene, tetrafluorodichlorobenzene, octafluorotoluene, decafluorodiphenyl, octafluoronaphthalene and decafluoroanthracene are replaced by perfluoroalkyl groups. They may be prepared by reacting one of the above-mentioned aromatic compounds with a perfluoroolefin in the presence of a fluoride of an alkali metal, for example potassium or caesium, or of a tetraalkyl ammonium radical. The process is conveniently carried out at 20-250 DEG  C. at a pressure up to 75 atmospheres.
Patent GB-153419-A (GB)
Title: A toy gramophone for recording and reproducing sounds
IPC: G11B33/06
Filed: 1919-09-12
Abstract: 153,419. Reast, W., Keast, W. J., and Keast, S. T. Sept. 12, 1919. Drawings to Specification. Sound magnifying and directing appliances.- The trumpet of a toy gramophone is made of light material which, according to the Provisional Specification, may be cardboard or paper.
Patent GB-967134-A (GB)
Title: Improvements in or relating to catalytic compositions
Inventor: GASSON EDWARD JAMES
IPC: B01J37/00
Filed: 1962-06-12
Abstract: Gaseous mixtures consisting of propylene air and steam yield acrolein in the presence of catalysts including antimony tetroxide, stannic oxide and ethyl silicate.ALSO:The catalytic composition and process of the parent Specification, which relate to antimony tetroxide in combination or admixture with stannic oxide and methods of manufacturing same, are modified by the inclusion of a minor proportion of ethyl silicate.  The ethyl silicate may be included at any stage in the preparation of the composition.  Thereafter the composition may be subjected to a heat treatment within the range 550-1100  DEG C.
Patent GB-1030062-A (GB)
Title: Current collecting contact for porous gas diffusion electrodes in fuel cells
IPC: H01M8/02
Filed: 1964-05-29
Abstract: 1,030,062. Fuel cells. BROWN, BOVERI & CO. Ltd. May 29, 1964 [May 30, 1963], No. 22429/64. Heading H1B. A current collector comprising a metal ring with a sharp edge directed towards a fuel cell electrode is coldwelded thereto. The metal ring 13 has a bore 16 for the gas supply, and the sharp edge can be cold-welded to the surface of the electrode 14 at the same time as the elements 13, 14 are pressed into the casing 15. Alternatively the metal ring is part of the metal rear wall 19 of the electrode holder, and screws 25 tighten the metal ring and the electrode together (Fig. 6, not shown). The electrode may be nickel or silver, and the metal ring is correspondingly nickel or silver, or alternatively steel with a nickel or silver surface layer. In the case of the silver electrode, cadmium may be used as the metal ring or surface layer, as cadmium alloys with silver.
Patent GB-500956-A (GB)
Title: Improvements in and relating to printing devices for weighing scales
IPC: G01G23/18
Filed: 1937-08-17
Abstract: 500,956. Weighing-apparatus. KRAUT. W. Aug. 17, 1937, Nos. 22579, 22580, and 22581. Convention dates, Nov. 23, 1936, March 1, 1937, and March 9, 1937. [Class 143] Printed records, apparatus for giving.- In a weighing scale; a disc secured, to the indicator shaft is provided with apertures having margins radially stepped in accordance with the graduation of the scale, correspondingly stepped feelers adapted to set type wheels on being moved axially into engagement with the apertures, and backing means moved axially in the opposite direction against the disc to support it against the pressure of the feelers. A portion of the perforated disc 4 is shown in Fig. 4, wherein the perforations 5, 6 have stepped edges 9, 8 corresponding to units and tens of weight. The outer edge of the disc is stepped to correspond to the hundreds denomination. In taking a printed record, a hande 11, Fig. 1, is rotated thereby moving a rack 40, provided with a transverse stop 39, to the left and allowing spring-pressed stepped feelers 12 to move up to the perforated disc 4 and engage the steps thereof, thus setting the printing wheels 29. Prior to this engagement, the movement of the stop 39 allows a spring-pressed locking blade to engage one of a number of grooves 16, Fig. 4, in the perforated disc, and a cam 42 moves a discsupporting device 14<1> consisting of a number of rollers, up to the disc to support the same when the feelers move into engagement. On the final movement of the handle a cam rocks a lever 44 to cause a printing platen 46 to make a record on a paper strip. When the apparatus is provided with mechanism for changing the weighing range by the addition of weights, the change-over mechanism (not shown) is connected to a rod 23 and bell-crank lever 24 which assumes one of three positions (indicated by I, II and III in Fig. 7) according as two. one or none of the capacity weights is in action. A spring-pressed rack 25 follows the movements of the bell-crank lever and rotates the hundreds type wheel 29 a corressponding amount. The stepped feeler is arranged above the rack and when liberated as described above gives an additional movement to the rack and printing wheel by engaging one of three projections 36, 36<1>, 36<11> on a lever 31 pivoted on the rack. The correct projection is automatically brought into operative position when the bell-crank lever 24 is moved, by means of' V-shaped projections 32, 32<1> co-oporating with a pawl 33.
Patent GB-1280264-A (GB)
Title: Method of preparing dough and apparatus therefor
IPC: A21D8/00
Filed: 1970-05-11
Abstract: 1280264 Dough BAKER RESEARCH DEVELOPMENT Inc 11 May 1970 [15 May 1969] 22591/70 Heading A2B A continuous process for making dough comprising mixing the ingredients in an open premixing zone without substantial development to form a premixed dough, and continuously developing the premixed dough in a closed developing zone, is characterised in that the dough is subjected to a rest period of at least 10 minutes prior to development. An apparatus for effecting such a process comprises an open premixing zone, a rest zone, for example a tank or an open screw conveyor, and a closed development zone, with means for delivering premixed dough to the rest zone and rested dough to the development zone. Suitable ingredients which may be employed in the dough include yeast, cysteine, ascorbic acid, and fat-coated salt.
Patent GB-1349816-A (GB)
Title: Condensation products for hardening epoxide resins
IPC: C08L63/00
Filed: 1972-05-15
Abstract: 1349816 Polyamides; epoxy resins INVENTA AG FUR FORSCHUNG UND PATENTVERWERTUNG 15 May 1972 [14 May 1971] 22631/72 Headings C3R and C3B Hardeners for epoxy resins are made by reacting an aliphatic polyamine containing 2 or more primary and/or secondary amine groups with a by-product mixture obtained by the removal of the main product(s) from the reaction mixture resulting from the oxidation of a cycloalkane to the corresponding cycloalkanol and/or cycloalkanone, or the oxidation of a cycloalkanol and/or cycloalkanone to the corresponding dicarboxylic acid. The cycloalkane may be cyclohexane, methylcyclohexane, or cyclodecane. The by-product mixture may contain butyric, valeric, caproic, succinic, glutaric, adipic, and hydroxycaproic acids. The polyamine may be C(CH 2 NH 2 ) 4  or the polyalkylene polyamine Preferably 2-8 mols. polyamine are used per equivalent of acid. Unreacted amine may subsequently be distilled off. The products may contain amine or imidazoline groups. The epoxy-resin may be derived from bisphenol A and epichlorohydrin. Initially the hardener may be reacted with an epoxy compound in a quantity insufficient for cross-linking, and thereafter, shortly before use, reacted with the quantity of epoxy resin required for hardening, e.g. as a solution in the presence of benzyl alcohol. The product may be used for coating iron sheets or glass plates.
Patent GB-169580-A (GB)
Title: Improvements in the low temperature carbonization and gasification of coal and othercarbonaceous material
IPC: C10G1/02
Filed: 1920-07-30
Abstract: 169,580. Tozer, C. W. July 30, 1920. Carbonizing processes.-Coal or the like is carbonized at a temperature not exceeding 600‹ C., and preferably between 400‹ and 600‹, with a vacuum of from 70 to 150 mm. of mercury. The gases are cooled in an atmospheric or watercooled condenser, and the tar fog removed in a frictional apparatus, both appliances working under a vacuum. The gases are then compressed to 4 or 5 atmospheres and allowed to expand suddenly to reduce the temperature of the gases and separate gaseous hydrocarbons as liquids. The ammonia is then removed in a scrubber and the remainder of the hydrocarbon vapours absorbed in an oil washer. A portion of the cooled stripped gas may be returned to the lower portion of the retorts to regulate the low temperature of distillation and prevent the light hydrocarbons from decomposing. Suitable retorts for the process are described in Specifications 7116/14 and 168,229.