baber/WOPTO huggingface dataset:
Patent GB-282686-A (GB)
Title: Instrument for drawing curves of conic section
IPC: B43L11/02
Filed: 1927-12-20
Abstract: 282,686. Krakowski, V. Dec. 22, 1926, [Convention date]. Templets for drawing conic sections have a parabolic edge a, hyperbolic edges b and an elliptical aperture e. The templet is marked with a central line which is an axis of all the curves and is also marked with pinholes from which other information relative to the curves is obtainable. Thus the point k is the focus of the parabola, the points h, h<1> lie at the intersections of the major axis of the ellipse with the directrices, and the foci are obtained by joining points l, L and m, m. Marks n represent the extremities of a pair of conjugate diameters. The point o is the centre of the hyperbola and the asymptotes are obtained by joining this point to the lower points l. m. The points i, i<1> represent the intersections of the axis of the hyperbola with its directrices, and the foci lie on the lines l l, m m produced. The upper part of the templet is marked with a protractor scale f, and the lower straight edge c is graduated.
Patent GB-1078276-A (GB)
Title: Improvements in or relating to fuel elements for nuclear reactors
Inventor: DELPEYROUX PAUL
IPC: B24B33/10
Filed: 1964-08-24
Abstract: 1,078,276. Fuel elements. COMMISSARIAT A L'ENERGIE ATOMIQUE. Aug. 24, 1964 [Sept. 3, 1963], No. 34535/64. Heading G6C. A fuel element, comprising a rod of fissile material clad in a canning, has deep grooves formed in the fuel which are filled with a metal having a greater heat conductivity than the fuel, said filling making good thermal contact with the fuel and the can. The filling may be of the same metal as, and may be integral with, the can; it may be a unitary structure separate from the can or a number of separate inserts. The can is preferably externally finned. The filling may be cast in situ, in which case it is of a lower melting point than the can if, as is preferred, the can is used as a mould during molten filling. Alternatively, the grooves may be filled by metal spraying. Examples of materials for the filling and can respectively are aluminium - silicon alloy, magnesium - zinc, -nickel, or cerium, and aluminium or magnesium alloy.
Patent GB-815455-A (GB)
Title: An improved device for holding sheep
IPC: A01K1/06
Filed: 1957-11-06
Abstract: 815,455. Animal holding devices. GREENWOOD, H. C. Nov. 6, 1957 [March 19, 1957], No. 34576/57. Class 81 (a). A device for supporting a ewe that refuses milk to its lamb in a position in which the lamb may feed comprises a tubular metal frame 1 having cross-bars 6 forming a cradle and leg frames 2 adapted to be folded against the underside of the frame 1 when the device is not in use. The leg frames are held securely in the open position by slidable rings 9 encircling the parts 2b of the frames and the ends of cross-bars 7 welded to the tubes 5 in which the frames are pivoted. The ewe is supported on the device with its legs above the ground and depending in the spaces formed on either side of the narrow ends of the frame 1.
Patent GB-1393627-A (GB)
Title: Method of manufacturing a detector of ionising radiation
IPC: G01T1/24
Filed: 1973-07-19
Abstract: 1393627 Semi-conductor radiation detectors SIEMENS AG 19 July 1973 [20 July 1972] 34587/73 Heading H1K In the manufacture of a detector of ionizing radiation elongate strips or rows of discrete regions of P-type material 10 are diffused through an oxide mask 8 into an N-type semiconductor body, e.g. of Si, having an initial resistivity of at least 100 # cm., and transversely arranged strip-shaped electrodes 16, e.g. of vapour-deposited alloyed-in A1, are provided on the opposite surface, e.g. in an etched hollow as shown. As shown the electrodes 16 may extend around the edge of the body to allow all external contacts to be made to the upper device surface.
Patent GB-859686-A (GB)
Title: Blades for gas turbine engines
Inventor: HOWELL ALUN RAYMOND
IPC: F01D5/02
Filed: 1957-11-07
Abstract: 859,686. Turbine and compressor blades. POWER JETS (RESEARCH & DEVELOPMENT) Ltd. Oct. 31, 1958 [Nov. 7, 1957], No. 34707/57. Class 110 (3). In a gas turbine engine having two annular concentric fluid flow paths, two-tier blading is provided comprising a tier of axial - flow turbine blades and a tier of axial-flow compressor blades, shroud ring structure being carried by the tips of the inner tier blades, and the outer tier blades extending from the shroud ring structure at positions intermediate the inner tier blades. The invention is shown applied in the case of a ducted fan-type gas turbine jet-propulsion engine, the two-tier blading 14, 16 being carried by the rotor disc 13. The inner tier blades 14 are formed with root portions 20 which engage in correspondingly-shaped slots in the periphery of the rotor disc 13. The blades 14 are each formed integrally with shroud portions 15, the shroud portions of the blades co-operating to form a substantially continuous shroud-ring and each shroud portion being formed with undercut recesses 15b at its circumferential ends, the recesses 15b of adjacent shroud portions cooperating to form dove-tail shaped grooves inclined to the axis of the rotor. The outer tier blades 16 are formed with roots 21 which are engaged in the dovetail grooves formed by the shroud portions 15. The first tier blades function as turbine blades while the second tier blades function as ducted fan compressor blades. The invention is also applicable to gas turbine engines where the inner tier blades are compressor blades and the outer tier blades are turbine blades. The turbine blades 14 may be made of a high-temperature resistant material while the compressor blades 16 may be made of a low density material such as aluminium alloy.
Patent GB-1552277-A (GB)
Title: Plant protection
IPC: A23B7/16
Filed: 1977-08-18
Abstract: The composition according to the invention for preventing scald in apples contains, as active substance, at least one light stabiliser and at least one formulation auxiliary.
Patent GB-1109653-A (GB)
Title: Positive displacement piston pump
IPC: F04B53/16
Filed: 1965-08-13
Abstract: 1,109,653. Reciprocating pumps. H. E. PINKERTON. Aug.13, 1965 LAug.14, 1964], No.34881/65. Heading F1A. A pump comprises a reciprocating and oscillating piston 48 with a cutaway (52), Fig.1 (not shown), controlling an inlet port 56 and outlet port 58 in the cylinder 46, leakage between the piston and cylinder being wiped from the piston by a lip seal 72 and returned from the lip seal chamber to the inlet port 56 via a longitudinal groove 68 in the cylinder wall. The piston is driven by a motor acting through reduction gearing and an eccentric angularly adjustable on drive shaft 55, a hooked rod 62 being radially adjustable relative to shaft 55 and acting to make a pin 57 on the piston follow the movement of the eccentric. The speed of the motor may be varied to vary the pump output.
Patent GB-479553-A (GB)
Title: The manufacture of wetting, sudsing, emulsifying and detergent agents
Filed: 1936-12-18
Abstract: Unsaturated alcohols having at least twelve carbon atoms are sulphated by treating with the reaction product of chlorsulphonic acid with a chloride or sulphate of ammonium or of a metal which forms a water-soluble salt with the sulphated alcohols.  By using these reaction products, the hydroxy group is esterified while the double bond remains substantially unattacked.  The products are stated to be wetting, sudsing, emulsifying and detergent agents. The sulphating agents which are probably chlorsulphonates are prepared by reacting chlorsulphonic acid, in the absence of water and at a temperature below 50 DEG  C. with the chloride or sulphate, p  e.g. of sodium, potassium, barium, cobalt or manganese.  The powdered sulphating agent is reacted with the alcohol and any remaining acidity in the product neutralized with a finely ground metal oxide, hydroxide or carbonate.  An inert diluent, e.g. carbontetrachloride, dichlorethane or ether may be present.  In examples: (1) sperm oil alcohol is treated with a sodium chloride-chlorsulphonic acid reaction product and slight excess of dry sodium carbonate added; (2) the product of example 1 is extracted with petroleum ether and the residue dissolved in alcohol and crystallized; (3) the product of example 1 is mixed with water and caustic soda, instead of sodium carbonate, to form a paste; (4) a mixture of saturated and unsaturated alcohols prepared by reducing the methyl ester of whale oil fatty acids with sodium is treated with a chlorsulphonic acidsodium sulphate reaction product and neutralized.  Specifications 391,435 and 479,482 are referred to.  The Specification as open to inspection under Sect. 91 comprises also the sulphation of unsaturated higher alcohols by means of the reaction product of sulphur trioxide with a metal chloride. This subject-matter does not appear in the Specification as accepted.ALSO:Unsaturated alcohols having at least twelve carbon atoms are sulphated by treating with the reaction products, which are probably chlorsulphonates, of chlorsulphonic acid with a chloride or sulphate of ammonium or of a metal which forms a water soluble salt with the sulphated alcohols. The resulting unsaturated sulphuric ester-salts are stated to have emulsifying properties. The salts of the acid sulphuric esters with the following metals are mentioned; sodium, potassium, barium, cobalt and manganese. In examples: (1) sperm oil alcohol is treated with a sodium chloride-chlorsulphonic acid reaction product, and slight excess of dry sodium carbonate added to remove residual acidity; (2) a mixture of saturated and unsaturated alcohols prepared by reducing the methyl esters of whale oil fatty acids with sodium is treated with a chlorsulphonic acid-sodium sulphate reaction product and neutralized.  The Specification as open to inspection under Sect. 91 comprises also the sulphation of unsaturated higher alcohols by means of the reaction products of sulphur trioxide with a metal chloride. This subject-matter does not appear in the Specification as accepted.
Patent GB-1342125-A (GB)
Title: Ventilation of dynamoelectric machines
IPC: H02K9/18
Filed: 1971-07-26
Abstract: 1342125 Cooling dynamoelectric machines GENERAL ELECTRIC CO 26 July 1971 [15 Oct 1970] 34933/71 Heading H2A In a gas-cooled dynamoeleotric machine comprising a stator frame 1 having axially spaced circumferential section plates 3 ... 10 peripherally surrounded by a generally cylindrical wrapper plate 2 which co-operates with the section plates to form part of a ventilating path which also includes radial passages not shown in a stator core 13 through which path a coolant gas is impelled by a fan near at least one end of the machine, at least one heat exchanger 27 extending transversely of the wrapper plate centreline is mounted in a removable top dome 21 disposed above the wrapper plate and extending axially over at least three section plates 3 ... 6 from adjacent one end of the wrapper plate, a first annular chamber 15 is defined by two section plates 5, 6 together with the core and a first portion of the wrapper plate which portion has therein openings 32 opening into the dome, a second chamber 37 or 38 is between two other section plates 4, 5 and is partially defined by a second portion of the wrapper plate adjacent the first chamber 15, the said portion defines second openings 39 from the top dome, and baffles 28, 29 are arranged to channel the gas from the first openings 32 to the heat exchanger 27 and thence to the second openings 39. By this construction smaller domes are used thus in the prior art, which domes together with the heat exchangers are shipped separately from the rest of the machine and are assembled thereon at the installation site, there possibly being an identical dome, exchanger and fan construction at the other end of the machine. The chambers 15 ... 17 are hot gas outlets, and the chambers 18 ... 20 are cool gas inlets, connected by respective pipes 31, 30. There are two flows to the fan, one to its top via a wrapper plate cut-out portion 36, and the other to its bottom via the chambers 37, 38, plate openings 42, chambers 40 and further plate openings 41.
Patent GB-428595-A (GB)
Title: Improvements in or relating to the coating of metallic wire with a viscous liquid like varnish
IPC: B05C3/15
Filed: 1933-11-09
Abstract: 428,595. Enamelling wire &c. PARFITT, A. W., Stafford House, Norfolk Street, Strand, London.-(Adams, A. H. ; 420, Lexing- ton Avenue, New York, U.S.A.) Nov. 9, 1933, No. 34940/34. Divided out of 428,532. Drawings to Specification. [Class 140] To obtain a bubble-free coating in enamelling wire, the wire is prewetted with a liquid akin to or readily miscible with the enamelling compound, e.g. with a diluted compound or a thinner or solvent, and is maintained in wet condition while passing to the enamelapplying nozzle, e.g. by providing an enclosed chamber in which the wire passes immediately from the prewetting means to the enamelapplying nozzle. The prewetting and coating liquid may be applied, and the chamber may be sealed, as described in Specification 428,532.
Patent GB-1087185-A (GB)
Title: Improvements in or relating to optical selector systems
Inventor: BORLEY COLIN RODERICK
IPC: H04N3/30
Filed: 1965-08-16
Abstract: 1,087,185. Picture scanning arrangements. MULLARD Ltd. May 19, 1966 [Aug. 16, 1965], No. 34947/65. Heading H4F. A multiple flying-spot scanning arrangement comprises a mirror tunnel formed of four orthogonally disposed mirrors M1, M2, M3, M4, a cathode-ray tube scanner T1 for producing a single raster scan Ro located at or near one end of the tunnel and a lens or lens system O for forming a two-dimensional array of real images of the raster on a plane Pr on the side of the lens or lens system remote from the tunnel. The arrangement is of use in a system for photocomposition or photo-typesetting where an array of transparencies of alpha-numeric characters are disposed in the plane Pr and arranged as illustrated so that each character is scanned by a different image of the raster. Transmitter light is detected by photo-electric cells (p), Fig. 4 (not shown), one for each character, and a signal corresponding to a desired character is selected by completing a circuit to the appropriate cell, by closure of a switch (S). The signals are applied to produce an image on a cathode-ray display tube (T2), the screen of which is photographed. In order that the characters as finally displayed should appear the right way up with left and right not reversed the transparencies in plane Pr must be alternately reversed along any horizontal row and alternately inverted along any vertical column. This corrects for the corresponding reversals which occur in the raster images as they are produced by the mirror tunnel.
Patent GB-966022-A (GB)
Title: Heat treatment and homogenization of work-sensitive suspensions
IPC: A23L25/10
Filed: 1960-10-12
Abstract: A viscous suspension of materials in a liquid medium immiscible therewith is heat-treated, mixed and homogenized by bringing the suspension into contact with the inner surface of a tubular heat exchange wall the outer surface of which is in contact with a heat carrying fluid, applying a rotational component of movement and a series of intermittent pressure pulsations to the suspension in contact with the tubular heat exchange wall, whereby the material is moved along the wall in a slow spiral motion having imposed thereon a series of intermittent longitudinal backward and forward motions, and discharging the heat-treated and homogenized product thereby obtained; the above-described method may be carried out in the apparatus described and claimed in Specification 842,310 consisting essentially of a scraped-surface heat exchanger in which the rotary shaft is mounted eccentrically with respect to the casing.  Examples are directed to the production of margarine, ice cream and peanut butter.  Marshmallow also is mentioned.
Patent GB-780691-A (GB)
Title: Improvements in and relating to paper-board manufacture
Inventor: HILL JUSTIN DEWITT
IPC: D21H21/16
Filed: 1955-12-06
Abstract: 780,691. Corrugated paper-board. LAWRENCE PAPER CO. Dec. 6, 1955, No. 35029/55. Class 96. Asphalt, e.g. of melting-point 185‹ to 230‹ F. from a hopper 22, Fig. 2, is fed by a screwconveyer 26 past a cold water spray 38, to a hammer-mill grinder 34 delivering through a 30-mesh screen 54 to a similar grinder 36 with a like screen 66, and into the tub of a beater 12, a stack pipe 70 of which has water-showers 72. The beater 12 supplies a chest 76, Fig. la, with pulp for the two middle vats 78, 80 of a four cylinder-mould board-making unit, the outer two being supplied with e.g. asphalt-free pulp prepared from waste paper. The combined web thus formed is couched on to a felt 90, wet pressed, dried at a temperature high enough to melt the asphalt, calendered, watersprayed and reeled. Paper-board unwound from the reel is subjected to steam jets, passed between corrugating rolls, and a liner is adhered to each side thereof.
Patent GB-1525297-A (GB)
Title: Weight support eyelets
IPC: A01K95/00
Filed: 1976-08-19
Abstract: 1525297 Anglers sinkers G WILLIAMS 19 Aug 1976 [23 Aug 1975] 35064/75 Heading A1A [Also in Division B3] The sinker is formed from a lead weight moulded on to the free arms 3 of an eyelet which has milled indented notches on its arms arranged to key the mould in position.
Patent GB-413566-A (GB)
Title: Improvements in picker rolls for use in carding or feeding tobacco and similar substances
IPC: A24C5/39
Filed: 1933-12-13
Abstract: 413,566. Picker rollers for carding or feeding tobacco and similar substances. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(American Machine & Foundry Co. ; 511, 5th Avenue, New York, U.S.A.) Dec. 13, 1933, No. 35070. [Class 120 (i).] A picker roll for use in carding or feeding tobacco and similar substances comprises a perforated metal tube or casing 5, Fig. 1, a wooden roller or reinforcement closely fitting therein and picker pins 6 driven through the perforations of the tube into the wooden roller or reinforcement. The wooden roller may be built up of four sections 1, 2, 3, 4, Fig. 2, and then forced into the tube 5. Alternatively opposite pairs of the tapering staves 1<a>, 2<a>, 3<a>, 4<a>, Fig. 3, may be forced into the tube 5 from opposite ends. The holes in the tube 5 are preferably slightly larger than the pins 6.
Patent GB-927646-A (GB)
Title: Improvements in or relating to inspection window arrangements
Inventor: WEKER PETER
IPC: F27D25/00
Filed: 1960-10-13
Abstract: 927,646. Inspection devices; generating combustion products under pressure. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. July 10, 1961 [Oct. 13, 1960], No. 35170/60. Classes 51 (1) and 51 (2). An inspection device comprises a window over a port in a wall of a furnace or other object, and means for covering the inside surface of said window with a thin continuous flowing sheet of transparent liquid. As shown, the window is formed from two sheets of glass of which the inner sheet 14 may be toughened, spaced from the furnace wall 2 by an insulating spacer 3, e.g. of asbestos brick, an annular water-cooled brass spacing ring 5, and water supply and drain pipes for covering the inside of the window, consisting of an inlet pipe 8 flaring out at about 12 degrees at 10 into a flat rectangular feed pipe 9, from which water passes behind a guide plate 13 and over the pane 14 into a drain pipe 16. This water may be preheated by being passed through the window interspace 18 and/or the cooling ring 7. The invention is stated to be applicable to rocket engines.
Patent GB-615403-A (GB)
Title: Improved method of preparing a luminescent mixture
IPC: C09K11/59
Filed: 1947-12-31
Abstract: 615,403. Luminescent materials. PHILIPS ELECTRICAL, Ltd. Dec. 31, 1947, No. 35177. Convention date, June 5, 1939. [Class 39 (i)] A luminescent mixture comprises a zincberyllium-manganese silicate, the materials used being proportioned so that there are not more than 17 g. mol. of Be2SiO4 and not more than 25 g. mol. of Mn2SiO4 to 100 g. mol. of Zn2SiO4; the materials are used in quantities to give a homogeneous phase with a formula Me2SiO4 approximately. In some forms, lower limits are set to the proportions. One process for obtaining the mixture consists in adding to 8100 gms. of ZnO2 dissolved in ammonia or ammonium carbonate, 3720 gms. of SiO2 in the form of hydrolysed ethyl silicate, 1575 gms. of BeSO4 and 495 gms. of manganese as MnNO3; this is evaporated to dryness, heated at 1300‹ C. and quenched. Specifications 480,356, 492,296, [both in Group XX], and 521,796 are referred to.
Patent GB-298411-A (GB)
Title: Improvements in and relating to cylinders for piston engines
IPC: F02B75/00
Filed: 1927-12-29
Abstract: 298,411. Pawlikowski, R. Dec. 29, 1927. Cylinders; pistons; packing. - In an internalcombustion or other engine or compressor ports 6, preferably of inclined or wave form, are arranged around the entire circumference of the cylinder at one end of the stroke to permit inspection and' cleansing of the piston-rings, and in some cases removal of the piston-rings and access to the piston. The ports 6 may be arranged in a chamber 9, which, in a two-stroke engine may be below the usual exhaust and scavenging ports 18, 19, the chamber being provided with removable or transparent covers 12. A ring of jets 15 may be arranged in the chamber for squirting cleansing fluid on to the piston-rings, the fluid being preferably supplied by an intermittently working pump. The edges of the ports 6 may be provided with wipers. The chamber 9 may contain sparking- plugs or electric lamps 44, which may be lighted intermittently by means of contacts 48, adjustable by means of a handle 51 and controlled by a bridge piece 46 carried by the piston or other moving part. An inspection lamp for inaccessible parts of the piston-rings comprises an electric lamp 41, Fig. 6<a>, arranged behind a perforated mirror 20 and carried by a handle 21. In a double-acting two-stroke engine the chamber 9 may be arranged between the two sets of exhaust and scavenging ports, or the latter may be utilized for the inspection of the piston rings, removable or transparent covers being provided in the exhaust and scavenging chambers. Preferably the cylinder liner 1, Fig. 14, is formed in two parts between which removable bridge-pieces 7 extend. The latter, preferably engage grooves 23, 23<1> in the ends of the liner and are secured at one end only. Piston-rings formed in halves are preferably employed to permit removal through the gap between the parts of the liner. The ends of the liner are undulated, the crests 29, Fig. 21, extending below the tops of the guiding surfaces of the intermediate bridge-pieces. The latter may comprise bridge-pieces 7 extending between the crests, and pairs of bridges 37 with gaps between their ends. Removal of the bridge-pieces 7 permits removal of the piston-rings, while removal of the bridge-pieces 37 also, permits removal or adjustment of other piston parts.