baber/WOPTO huggingface dataset:
Patent GB-448559-A (GB)
Title: An alarm clock electric time switch
IPC: G04C21/26
Filed: 1934-12-10
Abstract: 448,559. Time switches. WARTON, A. H., 69, Milton Road, Hanwell, London. Dec. 10, 1934, No. 35440. [Class 38 (v)] An alarm clock switch has a contact arm 12 pivoted on a termina post 3 and adapted when the alarm goes off to be moved by an ex tension 19 of the hammer movement so as to engage a fixed contact 4 When the alarm wine spring 25 unwinds it expands and engages the lower part 16 of the con tact arm to move it back to the off position. When the alarm mechanism is held off by a manual catch 20 and the spring 25 is wound, the switch arm can be moved on and off at will by means of an operating knob 23.
Patent GB-877688-A (GB)
Title: A method of isolating the clinical dextran fraction
IPC: C08B37/02
Filed: 1957-11-14
Abstract: Clinical dextran, having a molecular weight average of 40,000-250,000, is isolated from a solution in which native dextran has been degraded and which has been freed from higher molecular components by precipitation with alcohols and or acetone and filtration, by fractionally precipitating the clinical dextran fraction by the addition of an alkali metal phosphate.  In an example, ethanol is added to a degraded dextran solution to precipitate high molecular weight dextran and after filtration a mixture of primary and secondary potassium phosphates in ethanol is used to fractionally precipitate the clinical dextran.
Patent GB-1201119-A (GB)
Title: Improvements in and relating to furnaces for molten metal
Inventor: KING DAVID WALTER
IPC: F27D99/00
Filed: 1968-07-25
Abstract: 1,201,119. Metal melting furnaces. MORGANITE THERMAL DESIGNS Ltd. 24 July, 1969 [25 July, 1968], No. 35500/68. Heading F4B. A furnace for melting metal and holding the molten metal ready for use comprises a refractory bath 1, a heat-conductive refractory vessel 15 supported in the bath and spaced inwardly from the wall of the bath, and a fuel burner 14 producing a high velocity stream of hot gas which impinges centrally on the base of the inner surface of the vessel 15 and is reversed, by the baffle effect of such surface, to sweep upwardly and outwardly over the surface of the metal in the bath and out through a flue 8. In another embodiment, the hot gas escapes from vessel 15 via apertures (19, Fig. 3) provided through the rim of the vessel.
Patent GB-964918-A (GB)
Title: Improvements relating to the cracking of hydrocarbons
Inventor: HOLMES PETER DESMOND
IPC: C10G11/00
Filed: 1961-10-02
Abstract: Olefins are obtained by cracking a hydrocarbon feed in the presence of a silica-alumina cracking catalyst at a temperature and pressure selected within the ranges 500-950 DEG  C. and up to 50 p.s.i.g. and correlated with the flow rate to give a propylene yield based on feed of at least 10% and a propylene to ethylene weight ratio greater than 0.8.  The feed may be a straight run C4-200 DEG C petroleum fraction or a gas oil boiling in the range 200-450 DEG  C. and is contacted with a catalyst containing 5-35% of alumina in the presence of an inert gaseous or steam diluent for a contact time of 0.01-30 seconds. The conditions are preferably adjusted to give maximum propylene yield.
Patent GB-876470-A (GB)
Title: Improvements in or relating to guttering
Inventor: BULL LESLIE FRANCIS
IPC: E04D13/064
Filed: 1959-10-22
Abstract: 876,470. Gutter brackets. TERSONS Ltd. Oct. 22, 1959, No. 35806/59. Class 52(5). [Also in Group X] Guttering comprises a gutter and a gutter support bracket having a socket portion 1 shaped to receive the end of at least one gutter length 2, an inwardly directed projection 4 being provided at the upper margin of each side wall of the gutter bracket to retain a gutter length 2 in the bracket the gutter being resiliently deformable for snapping home into the socket. The projections 4 are of resilient material to allow each gutter length 2 to be pressed into the socket portion 1 and then be retained by the projection. To ensure a tight fit in the socket and to prevent leakage between adjacent gutter lengths a pad 5 of foam rubber or the like is situated between the gutter 2 and the socket 1. The gutter and the bracket may be made of a resilient material such as fibre glass. The bracket may be made to support two abutting gutter lengths 2 or it may be formed as an end member for a length of guttering. As shown in Fig. 4 a drop pipe 6 is provided in the bracket to allow water to flow away from the gutters.
Patent GB-952026-A (GB)
Title: Improvements in or relating to gymnastic exercising apparatus
Inventor: SCHMIDT-DINCKLAGE DIRK
IPC: A63B21/045
Filed: 1962-09-22
Abstract: 952,026. Exercising-apparatus. BALIOLYMPIC-GERATE G.m.b.H. Sept. 22, 1962, No. 36134/62. Heading A6M. A gymnastic exercising apparatus consists of arms 1 arranged at an angle, connected together by a helical spring wire 2 having at least one turn and terminating in handles 3. The wire may be galvanized, or nickel or chromeplated, and may be coated with plastics material. In a modification loops of material, adjustable by buckle means, for supporting feet, are rotatably secured to the ends of the handles 3.
Patent GB-489835-A (GB)
Title: Improvements in and connected with sleeve-valve internal combustion engines
IPC: F01L5/24
Filed: 1937-12-30
Abstract: 489,835. Valves. BARBAROU, M. J. B. Dec. 30, 1937, No. 36174. Convention date, Dec. 31, 1936. [Class 7 (vi)] In a sleeve-valve engine, the cylinder ports 2 are formed in annular plugs 3 which are pressed against the valve by springs 4 to give a sealing effect, a packing-ring 6 being fitted on the plug. In cases where the location of the port does not admit of arranging the springs 4, as shown, the plug is pressed against the valve by cams formed on a pair of spindles fitted with arms which are pressed apart by a spring.
Patent GB-522690-A (GB)
Title: Improvements relating to sparking plugs for internal combustion engines
IPC: H01T13/46
Filed: 1938-12-13
Abstract: 522,690. Sparking-plugs. LODGE PLUGS, Ltd., and HOPPS, B. Dec. 13, 1938, No. 36280. [Class 7 (iv] Each of the platinum-alloy earthed electrodes c consists of a part attached to the plug body and extending parallel to a tangent to the central electrode, and a part extending upwardly or downwardly parallel to the central electrode 1. They may be secured in the plug body by a metal ring and may be of square or other cross-section.
Patent GB-343977-A (GB)
Title: Improvements in or relating to compound shoe bottom fillers
IPC: C08L97/00
Filed: 1929-11-27
Abstract: Containing rubber latex.-A plastic composition for use as a shoe-bottom filler is prepared from a rubber latex binder and a comminuted solid filling material mixed together and spread on the shoe bottom while still in the soft state.  The preferred filler is granulated cork.  In a modification of the process the filler is first mixed with sufficient rubber latex to wet the granules, and then a volatile solvent such as petrol or carbon tetrachloride is compounded with the mixture.  Resinous materials may form part of the binder and may be added in an emulsified condition or as a resin soap to the latex.  Specifications 171,046, 210,193 and 307,731, [all in Class 70, Indiarubber &c.], are referred to.
Patent GB-331796-A (GB)
Title: Improvements in electric incandescent lamps
IPC: H01K1/24
Filed: 1929-11-27
Abstract: 331,796. General Electric Co., Ltd., (Assignees of Patent-Trenhand-Ges. fiir Elektrische Gl³hlampen). Nov. 30, 1928, [Convention date]. Filaments, supports for.-In a tubular lamp a having a cap at both ends and only one foot-tube d, the small tubular glass rod k which extends from the pinch on the foot-tube and carries the support wires g for the filament f has its other end sealed centrally to the end of the bulb. The rod k may be strengthened by means of a wire m.
Patent GB-1241449-A (GB)
Title: A solid state mechano-electrical converting device
Inventor: YAMASHITA AKIO
IPC: H01C10/12
Filed: 1968-07-30
Abstract: 1,241,449. Semiconductor devices. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 30 July, 1968, No. 36369/68. Heading H1K. A mechano-electrical transducer comprises a semi-conductor body containing two PN junctions 14, 15, the vicinity of one of which, 15, contains deep level impurities. Means 20 are provided for applying a mechanical signal to the junction 15. The embodiment illustrated comprises a Si two-electrode device, with B or Ga diffused from one surface to form a P-type region 13 defining the junction 15. An oxide or nitride mask may be applied to the opposite face of the body during this diffusion. Cu is introduced to the vicinity of the junction 15 by ion implantation to form the deep levels. One or more electrodes may also be applied to the central N-type region 12. Other semi-conductor materials referred to are Ge, GaAs, InAs, InSb and GeP, alternative deep level impurities being Au, Co, Fe, Ni and Mn.
Patent GB-407159-A (GB)
Title: Improvements in or relating to observation apparatus for motor vehicles
IPC: G02B23/08
Filed: 1932-12-24
Abstract: 407,159. Look - out reflectors for vehicles. DUMARET, E. C., 9, Boulevard de Magenta, Paris, and LIEBAUT, A. P., 8, Avenue du ChÔteau, Le Perreux, both in Seine, France. Dec. 24, 1932, No. 36577. Convention date, Dec. 28,1931. [Class 103 (ii).] A vehicle observation device for giving a forward view of the road on the side of the vehicle opposite to that of the driver comprises a divergent or convergent lens 11 arranged on this side with its axis parallel to the longitudinal axis X-X<1> of the vehicle and which reflects the view to the driver by means of mirrors or prisms 8, 9 and a convergent lens 12. The device may be arranged in a tube 13. To erect the image when the lens 11 is convergent a similar lens 14 is arranged in the tube between the mirrors 8, 9. The Specification as open to inspection under Sect. 91 comprises also (a) the provision at the driver's end of the tube 13 of a ground-glass screen 15, Fig. 6 (Cancelled), to receive the image, the luminosity of which may be increased by a second ground-glass screen 16 situated as shown in the tube 13 ; (b) the provision of an achromatic prism with or without a divergent lens to increase the field of view ; (c) the combination of two plane mirrors, one on each side of the longitudinal axis of the vehicle ; and (d) the combination of two curved mirrors, e.g. spherical, parabolic, convex, or concave mirrors, provided if necessary with an erecting lens or prism system. This subject-matter does not appear in the Specification as accepted.
Patent GB-1438654-A (GB)
Title: Members having a cutting edge
IPC: B26B21/58
Filed: 1972-08-05
Abstract: 1438654 Coating with boron WILKINSON SWORD Ltd 25 July 1973 [5 Aug 1972 (2)] 36645/72 Heading C7F [Also in Division B4] A member with a cutting edge, e.g. a razor blade has a boron coating not more than 5À0 microns thick applied by e.g. sputtering, evaporation or chemical decomposition. The coating may be subsequently heated, and given a further coating of Cr, Fe-Cr or Cr nitride, and a sub sequent polymer coating.
Patent GB-372787-A (GB)
Title: Improvements in carburettors for internal combustion engines
IPC: F02M7/12
Filed: 1930-12-05
Abstract: 372,787. Spray carburetters. ERADE, C. J., 188, Chaussee de Heusy, Verviers, Belgium. Dec. 5, 1930, No. 36776. Convention date, June 17. [Class 7 (iii).] The carburetter comprises a tubular body 15 containing butterfly valves 17, 18 which control the main air supply and the mixture outlet respectively, a fuel jet 25 positioned between the valves and an auxiliary air passage 26 into which the fuel is sprayed. The auxiliary air is controlled by a cylindrical sleeve valve 35 which is operated conjointly with the valves 17, 18. A needle valve 39 for controlling the fuel jet may be operated conjointly with the valves 17, 18, 35. The housing for the passage 26 slides over the fuel jet 25 and is provided with a slot 29 through which a rich mixture is delivered into the main air passage, the position of the housing 26 being determined by a screw which engages a lug 34. The Specification as open to inspection under Sect. 91 (3) (a) also describes (1) a carburetter in which means for controlling the auxiliary air inlet and the outlet for rich mixture are omitted, (2) a carburetter in which a flap valve is located in the supply passage for auxiliary air and controlled simultaneously with the main air and mixture throttle valves, and (3) a carburetter in which the supply of auxiliary air is uncontrolled and a needle valve in the fuel outlet is controlled simultaneously with the main air and mixture throttle valves. This subject-matter does not appear in the Specification as accepted.
Patent GB-1181845-A (GB)
Title: An Improved Device for Viewing Dials or Other Objects
Inventor: BATEMAN ARNOLD STANLEY
IPC: G02B25/02
Filed: 1967-08-10
Abstract: 1,181,845. Electric battery lamps. ABBOTT, BIRKS & CO. Ltd. 1 Aug., 1968 [10 Aug., 1967], No. 36818/67. Heading F4R. [Also in Division G2] An illuminating and viewing device, such as for use in reading dials, comprises a tubular casing 11 closed at one end 13 by a window 14 and enclosing a holder 16 which carries a lens 17, a light bulb 19 and battery housing 18. A metal tube 22, extending along the wall of casing 11, and detachably connected thereto by a stud 26 and nut 27, is attached at one end to the holder 16 and at its other end carries a switch 28.
Patent GB-1103319-A (GB)
Title: Improvements in a jig and machine for the production of floor, wall and like coverings
IPC: B29C43/00
Filed: 1965-08-27
Abstract: 1,103,319. Laminates. G. W. SINGLETON, and D. R. H. SINGLETON. 24 Aug., 1966 [27 Aug., 1965], No. 36877/65. Heading B5N. A machine for the production of composite flooring and like sheets comprises a frame B to position one sheet a, e.g. of hardboard, a carriage D for applying bands of adhesive to the sheet a, the sheet and the carriage being capable of relative movement, and pegs c associated with holes b2, b3, b4 in the frame B for positioning a second sheet a1 e.g. of corkboard or rubber, above the first sheet. The carriage D may be driven by a motor D1 along a track b5 over the sheet a, the adhesive being applied through perforations d4 in a manifold dl of the carriage connected to an adhesive supply line d2. The adhesive may be a paste. The sheet a1 is positioned flush with the sheet a or the sheets may be overlapping depending upon the position of the pegs c. Where the edges of the sheets are flush, two composite sheets may be joined together by a length of metal or plastic T- seotion, the arms of the T being interleaved between adjacent component sheets a, a1 of adjacent composite sheets. A number of composite sheets may be assembled in a platen press with adhesive and bonded together.
Patent GB-1145842-A (GB)
Title: Improvements in or relating to electrical wave form measuring apparatus
Inventor: ELLIS ALFRED BRIAN EDWIN
IPC: G01R25/00
Filed: 1965-08-27
Abstract: 1,145,842. Apparatus for determining points of symmetry of symmetrical waves. MARCONI CO. Ltd. 28 March, 1966 [27 Aug., 1965], No. 36896/65. Heading G4H. Apparatus for measuring the point of symmetry of a symmetrical waveform comprises gating means 4 (Fig. 2) through which clock pulses are fed to a counter 5, the gate being closed when the waveform reaches a predetermined amplitude and a further gate 8 then enabled to pass clock pulses of half the frequency to the counter 5 until the same amplitude is next reached. The count then represents the point of symmetry of the waveform.
Patent GB-892875-A (GB)
Title: Transfusion set
IPC: A61M5/14
Filed: 1960-10-31
Abstract: 892,875. Blood transfusion apparatus. AMERICAN STERILIZER CO. Oct. 31, 1960 [Dec. 23, 1959], No. 37286/60. Class 81 (2). A flexible container for blood transfusion purposes has an inflatable compartment formed on one wall, to apply pressure to the blood compartment to force the blood out. In the form described, three sheets of flexible material are heat-sealed together around their edges so that the space formed between walls 11, 12 forms a blood-receiving compartment and that between walls 12, 16 forms the inflatable compartment. Blood is admitted from a storage container 1 through a connecting tube 6 and filter 9 and, after air has been excluded from the blood compartment, the tube is closed by a pinch cock 7. Blood then flows through a sight vessel 21 under control of a pinch cock 26 but, when desired, air is pumped into the compartment between walls 12, 16 by a bulb 17, so as to force the contents out under pressure.
Patent GB-1105634-A (GB)
Title: Polyblends
IPC: C08L57/00
Filed: 1966-08-19
Abstract: A polyblend comprises a rigid phase and a particulate dispersed rubber phase wherein the rubber phase contains cross-links derived from pendant unsaturation originally present in the uncross-linked rubber, in order to preserve the particulate size and structure of the dispersed rubber phase upon extrusion or other processing. The blend consists at least in part of a graft polymer with the rubber as backbone and the rigid phase as superstrate and is prepared by dissolving or dispersing the rubber in a monomer, or mixture of monomer and organic diluent, polymerizing the monomer to cause inversion of the continuous rubber phase, to a dispersed rubber phase of discrete particles, crosslinking the rubber and then completing polymerization. Sufficient peroxide initiator is employed to promote the cross-linking, or in some cases g -radiation is used, e.g. when the rigid phase is polystyrene. Preferred rubbers are derived from di-unsaturated monomers containing only one terminal double bond or from esters of acrylic acids and unsaturated alcohols, copolymerized with, e.g. mixtures of ethylene with another a -olefin e.g. propylene or butylene or with a vinyl ester, a vinyl ether or vinyl chloride. The ester groups in a rubber may be hydrolysed and subsequently re-esterified with an unsaturated acid, or a rubber containing carboxyl groups may be esterified with an unsaturated alcohol. The rigid phase is derived from, e.g., styrene, a -methyl styrene, vinyl toluene, a -chlorostyrene, o-chlorostyrene, p-methylstyrene, a - and b -vinyl naphthalenes or (meth)acrylic acid or a derivative thereof. Preferred monomers are methyl methacrylate or mixtures thereof with acrylonitrile and styrene. In examples the rubbers used are terpolymers of ethylene and propylene with 1,4-hexadiene, dicyclopentadiene or cyclo-octadiene; an ethylene - vinyl acetate copolymer modified by ester interchange with acrylic acid or by hydrolysis followed by reaction with acrylyl chloride, crotonyl chloride, oleyl chloride or undecylenyl chloride or the corresponding anhydrides; and a terpolymer of ethyl acrylate and n-butyl acrylate with allyl acrylate or methacrylate, or vinyl crotonate.  The rigid phase is derived from styrene, styrene and acrylonitrile and/or methyl methacrylate, or methyl methacrylate alone.  The beads of polymer blend produced are blended with ditertiary butyl para-cresol and zinc stearate prior to extrusion.
Patent GB-624652-A (GB)
Title: Improvements in spectacle frame components
IPC: G02C11/02
Filed: 1946-12-19
Abstract: 624,652. Spectacle frames. POLDEN, D. C., and POLDEN, R. E. Dec. 19, 1946, Nos. 37445/46 and 7073/47. [Class 97 (i)] To prevent the chemical corrosion of a cellulose ester frame component by a metallic insert the latter is of aluminium treated e.g. by anodisation to receive a deposit of hard and stable oxides. Fig. 1 shows a transparent or translucent side arm having such, an insert 2, which may be dyed and having a broad portion 5 engaging the face and an ear-engaging portion 6 which may be adjusted by bending, after warming if necessary. According to the second Provisional Specification, magnesium may be used as may its alloys and those of aluminium.
Patent GB-1377105-A (GB)
Title: Proteolytic enzyme and its preparation
IPC: C12N9/52
Filed: 1972-08-10
Abstract: 1377105 Bakery products RHONE-POULENC SA 10 Aug 1972 [12 Aug 1971] 37456/72 Heading A2B [Also in Division C3] Bread, biscuits, rusks and other baked foodstuffs based on flour are made using flour admixed with the proteolytic enzyme called 25, 462 RP which is obtainable from Streptomyces hygroscopicus DS 14, 649 (see Division C3). A bread dough comprises the enzyme admixed with yeast, salt and water and a concentrate for biscuit making comprises the enzyme and starch.
Patent GB-1139259-A (GB)
Title: Variable resistance component
IPC: H01C10/32
Filed: 1966-08-22
Abstract: 1,139,259. Variable resistor. CLAROSTAT MFG. CO. Inc. 22 Aug., 1966 [9 Sept., 1965], No. 37484/66. Heading H1S. Carbon resistance element 16 is wiped by a projection 22 on cylindrical carbon rotating member 12 and a second projection 24 on member 12 wipes collector element 38. Spring 11, which may be of Be-Cu alloy, has lugs 27, 28 which engage with channels 29, 30 at the sides of member 12, so that it rotates with member 12. Portions 35, 36 of spring 11 bear on the inside 37 of lever 10, which may be of brass, so that it urges member 12 against resistance element 16 and collector element 38, and projection 40 acts as a rotating stop, contacting a part 41 of cover 10 in its extreme position. An aperture 21 in the end of cover 10 and slots 39, 26 in member 12 and spring 11 allow member 12 to be rotated by inserting the end of a screwdriver into slot 26.
Patent GB-1481497-A (GB)
Title: Deflector blade
IPC: B64C3/50
Filed: 1975-09-12
Abstract: 1481497 Deflecting propulsive gases DORNIER GmbH 12 Sept 1975 [12 Nov 1974] 37589/75 Heading B7G A variable-camber deflector blade for deflecting engine efflux comprises a forward portion 4 which is fixed relative to the aircraft, a central portion 6 pivoted to the forward portion at 26, and a rear portion 8 pivoted to the central portion about a pivot 24. A cranked link 34, 36 is pivoted to the front and rear portions about axes 28 and 29, respectively. The blade is curved through angles up to 105 degrees by applying a force to the pivot 44 at the end of the cranked link in the direction of the arrows. The blade portions are covered with top and bottom skins (12), (16), Fig. 1 (not shown). The top skin is fixed to the forward portion and slidable relative to the rear portion, and the bottom skin is fixed to both forward and rear portions. A further arm (38), Figs. 4 and 5 (not shown), maintains the top skin in contact with the rear portion at all cambers.