baber/WOPTO huggingface dataset:
Patent GB-809974-A (GB)
Title: Improvements relating to electronic oscillators
Inventor: EAMES ANTHONY RAINSFORD
IPC: H03B5/36
Filed: 1956-10-31
Abstract: 809,974. Transistor oscillators. BRITISH THOMSON-HOUSTON CO. Ltd. Oct. 16, 1957 [Oct. 31, 1956], No. 33247/56. Class 40 (6). A transistor oscillator circuit comprises a parallel resonant circuit connected in the emitter circuit of an output junction transistor XI, a portion of the output being fed back to the emitter of an earthed base junction transistor X2, the collector of which is connected to the base of transistor X1 through a piezoelectric crystal X arranged to series-resonate at the resonant frequency of the paralleltuned circuit. The crystal X may be arranged to operate either at its fundamental frequency or at a harmonic thereof.
Patent GB-445492-A (GB)
Title: Improvements in and relating to bodies, or containers for general transport of merchandise, or the like
IPC: B65D6/00
Filed: 1934-11-20
Abstract: 445,492. Vehicles with removable bodies ; vehicle bodies ; buildings. HOWARD, N., 2, Sibford Road, West Derby, Liverpool. Nov. 20, 1934, No. 33323. [Class 108 (i)] [See also Group X] A vehicle body or container, other structure or building comprises a framework of vertical and horizontal metal tubes with longitudinal T- section ribs, cross straps or spacing members secured to and between the tubular members, panels and binding strips for securing the panels to the tubular members which may also serve as circulating conduits for liquids or air of any predetermined temperature desirable according to the nature of the contents. The tubular members 1 are preferably constructed as two half members 1<a>, Fig. 11, which when assembled present two ribs 1<b>, 1<a>, spacing wooden members 4 having curved ends to fit the members 1 are secured to, and between the members 1 and secured thereto and the outer and inner panels 5 are provided with returned ends 5a which are secured to the members 1 by channel strips 2 adapted to be slid into position. The tops of the vertical side members 1 are mitred to connect to the horizontal members 1, Fig. 12. The cornices are formed by shaped wooden members 10 secured to the longitudinal side and roof members and between the roof members are bridging members 11. The vertical members 1 are positioned on the floor which comprises a timber bottom plate 3, a cork layer 3<a>, and an aluminium netting or matting 3b which are secured to the uprights by brackets 8, 8<a>, and flange 5b. Strengthening members 6 are shaped and secured as shown in Fig. 12. The door surrounds comprise half tubular units 1<a>, Fig. 16, and shaped members 12 secured together and to the panelling by the strips 2. An internal stiffening steel tube 14 and wooden packing piece 15 are provided. The upright door-surround members are connected by spacing wooden members 13 and wooden hinge strap members to uprights 17 and tubular members 1, Fig. 16, while the upper horizontal members 12, 1<a>, Fig. 15, are secured to the roof bridging members 11 by straps 19 of shape similar to straps 10. The lower member 12 is secured to the floor. The door comprises two vertically hinged panels 20 and one horizontally hinged panel 21, Fig. 1, the edges of the panels being provided with rubber packing strips 22. In a modification the cornices comprise shaped wooden members 25, Fig. 18, in place of the members 10 and the roof comprises longer bridging members. The upright tubular members may be provided with channels formed in the members or attached thereto to serve as window guides and the tubular members may be formed as one-piece tubes instead of in complementary halves. Fig. 27 shows a modification in which the outer T-shaped rib is retained but L-shaped flanges are provided on the inner side between which flanges a wooden member 31 is secured to which the panelling &c. may be secured. Insulating material may be packed between the inner and outer panels.
Patent GB-996902-A (GB)
Title: A method of manufacturing bricks and tiles
Inventor: FALLOON CECIL SAMUEL GORDON
IPC: B28B11/14
Filed: 1960-09-29
Abstract: 996,902. Moulding bricks and tiles. NORTHERN BRICK CO. (BELFAST) Ltd. Oct. 5, 1961 [Sept. 29, 1960], No. 33406/60. Heading B5A. [Also in Division E1] Bricks and tiles are made by pressing out bricks from a mix of sand and cement, subjecting the bricks to steam pressure treatment, and cutting off at least one free of each brick whereby the undersurface is exposed to serve as a facing while the, or each cut-off section provides a tile. As described, the bricks from a rotary press are autoclaved at temperatures up to 380‹ F. and are then sawn.
Patent GB-1436164-A (GB)
Title: Two-stage bulk polymerization of vinyl halide monomer compositions
IPC: C08F255/00
Filed: 1973-05-08
Abstract: 1436164 Polymerizing vinyl halides HOOKER CHEMICALS & PLASTICS CORP 8 May 1973 [8 May 1972] 33415/75 Divided out of 1436162 Headings C3G and C3P Vinyl halides are polymerized in bulk in two stages, the first at high speed agitation in the presence of a rubbery copolymer of a conjugated diene and a vinyl aromatic monomer and the second at low speed agitation. The rubber copolymer, preferably butadienestyrene, may be present in an amount of 0À05- 0À5% based on monomers. The product which contains some graft polymer is of smaller particle size than is obtained in the absence of the copolymer.
Patent GB-1314118-A (GB)
Title: Naphthoquinone derivatives and a process for the manufacture thereof
IPC: C07C225/30
Filed: 1971-07-16
Abstract: 1314118 2 - Aminonaphthaquinone derivatives F HOFFMANN-LA ROCHE & CO AG 16 July 1971 [17 July 1970] 33475/71 Heading C2C Novel compounds of Formula I: wherein R is H, halogen or C 1-4  alkoxy and R<SP>1</SP> is a group of Formula Ib: or Ia: wherein R<SP>2</SP> is H, C 1-7  alkyl, phenyl optionally substituted by halogen, nitro, amino or hydroxy or is phenyl-(C 1-4 )-alkyl or a salt thereof, are prepared either by oxidation of a compound of Formula IV: or by reaction of a compound of Formula II: wherein R<SP>3</SP> is acyloxy, alkoxy, aryloxy, aralkoxy, arylthio, aralkylthio, hydroxy or halogen with an amine R<SP>1</SP>-NH 2 , and optionally converting a compound wherein R is H or halogen other than chlorine into a compound where R is chlorine or any compound into an acid addition salt. 2 - (2 - Endo - bornylamino) - 3 - chloro - 1,4- dihydroxy-naphthalene is prepared by reduction of the corresponding naphthaquinone. Amines of formula R<SP>1</SP>-NH 2  are prepared either by reduction of the corresponding oxime R<SP>1</SP>=NOH optionally with separation of stereoisomers by crystallization of the acetates or by hydrolysis of the N-acetylamino compound and where R 2  is nitro-phenyl, by nitration of the compound where R 2  is phenyl prior to hydrolysis. The N-acetyl compounds R<SP>1</SP>-NACOCH 3  are prepared by reaction of the appropriate 2-R 2 -2-borneol with acetonitrile. 2-Heptyl-2-borneol is prepared by reduction of 2-heptynyl-2-borneol obtained by reaction of camphor 1-heptyne and ethylmagnesium bromide. N - (4 - Phenethyl - 2 - exobornyl) - acetamide is obtained by reaction of acetonitrile with 2-(1- phenethylidene)-camphane obtained by reaction of 2-phenethylborneol with acetic anhydride. Pharmaceutical compositions in conventional forms for oral, rectal or parenteral administration and having amoebicidal and bacteriostatic activity comprise an above novel compound and a carrier therefor.
Patent GB-407784-A (GB)
Title: Improvements in connection with metal rings for supporting plants and the like
IPC: A01G9/12
Filed: 1932-11-28
Abstract: 407,784. Making rings; wire. HARGREAVES, W., Glendaruel, Thorley Lane, Timperley, Cheshire. Nov. 28, 1932, No. 33579. [Class 83 (ii).] A coil a of wire, preferably of soft metal, is cut or indented longitudinally at a<1> so that the material is nearly severed, split rings serving as supports for plants &c. being severed from the coil at the weakened points when required. The notches a<1> may be on the inside or outside of the coil. The cuts may be staggered to produce rings greater or less than a complete circle. Coils of different diameters may be nested, and a coil may be supported on a mandrel or a split support, or within a sleeve. Wire.-The notches a<1> may be formed in the wire before coiling.
Patent GB-641933-A (GB)
Title: Improvements in or relating to electric follow-up systems
IPC: G05D3/12
Filed: 1945-12-12
Abstract: 641,933. Electric follow-up systems. RAYTHEON MANUFACTURING CO. Dec. 12, 1945, No. 33599. Convention date, Dec. 23, 1940. [Class 40 (i)] In a system in which a motor automatically drives an object into positional correspondence with a controlling object and a Selsyn transmitter and receiver, producing an error signal, are linked with the controlling object and driven object respectively, the Selsyn system is energized by A.C. having a frequency not substantially less than 1000 cycles per-second and power is supplied to the motor in one direction or the other through a grid-controlled rectifier according to the magnitude and polarity of a D.C. signal dependent on the error signal. A motor 1 is arranged to drive a movable object to a position corresponding to the setting of a pointer 34 by a hand wheel 10. The rotor 36 of a transmitter Selsyn 37 is coupled to the hand wheel and connected to the rotor 39 of a receiver Selsyn 40. The stator 38 of the transmitter is supplied from a 1500 cycle A.C. source and the stator 40 of the receiver gives an A.C. control voltage corresponding in phase and magnitude to the sense and degree of misalignment between the movable object and the hand wheel. This control voltage is applied in phase opposition to the grid circuits of triodes 43, 44, the anodes of which are supplied from the A.C. source. Anode loads 48 and 49 of these valves include capacities to filter out A.C. components and a D.C. control voltage, taken from across the two loads and applied to a resistor 51, is dependent in polarity and magnitude on the phase and magnitude of the A.C. control voltage. The D.C. control voltage is amplified by triodes 52, 53 and applied in opposite polarity to the grid circuits of discharge-type valves 4, 5 rectifying to supply from a transformer 6 to motor 1. Each rectifier is normally biassed to cut-off by a battery 25 and the output of a potentiometer 32 or 33 supplied with A.C. in quadrature with the rectifier anode voltage. In response to the D.C. control voltage on misalignment, however, one or other of the rectifiers conducts intermittently and motor 1 rotates in the appropriate direction to correct misalignment. Rotor 39 of the receiver is coupled to motor 1 so that the control voltage is reduced to zero when misalignment is corrected. The speed of motor 1 is made dependent on the degree of misalignment by feeding back to the rectifier grid circuit a portion of the armature voltage across a resistor 13. If the motor continues to run after misalignment is corrected the voltage across resistor 13 renders the other rectifier conductive to brake the motor. An arrangement in which the motor operates at maximum speed for a small misalignment is referred to.
Patent GB-305760-A (GB)
Title: Improvements in fertilisers and the manufacture thereof
IPC: C05C1/02
Filed: 1927-12-13
Abstract: 305,760. Slade, R. E., and Imperial Chemical Industries, Ltd. Dec. 13, 1927. Manures.-A granular fertilizer is made by mixing a strong solution or melt of ammonium nitrate with calcium carbonate obtained as a bye-product in the manufacture of ammonium sulphate from calcium sulphate and ammonium carbonate. The mixture is evaporated to dryness by heating to 50‹ to 100‹ C. under vacuum. The crude granular product is graded by sieving, the over-size granules nnd fibres being returned to the evaporator.
Patent GB-793270-A (GB)
Title: Rotary cutter for slitting webs of paper, cardboard, fabrics or the like
Inventor: ROEDER KARL
IPC: B26D1/00
Filed: 1955-11-24
Abstract: 793,270. Slitting-apparatus. MASCHINENFABRIK GOEBEL GES. Nov. 24, 1955, No. 33768/55. Class 31 (1). A rotary cutter coacting with a second rotary cutter for slitting webs of paper &c. comprises knives in the form of annular steel discs 5, Fig. 1, which are each slit radially at 24, Fig. 2, and mounted between hub-like annular members 4 which are subjected to axial pressure by means of a nut 3, spring or the like pressure member at one end of the shaft 1 and a fixed stop or other pressure member at the other end of the shaft. In a modification, Fig. 4, knives 11, similar to the knives 5, are mounted on shoulders 10 of hub-like annular members 9, the shoulders preferably being narrower than the knives. In another modification, Fig. 5 (not shown), intermediate rings are provided between the hub-like annular members. In further modifications, the bearing surfaces of the knives are slightly conical. Specification 694,923 is referred to.
Patent GB-968251-A (GB)
Title: Connections for conduit tubing
IPC: H02G3/06
Filed: 1962-09-04
Abstract: 968,251. Conduit connectors. G. M. PRATLEY. Sept. 4, 1962 [Sept. 15, 1961], No. 33902/62. Heading F2G. A connector for a conduit 1 comprises a sleeve 7 adapted for screwing on to the conduit and tapered externally, the tapered portion having a number of longitudinal slits 9, and a nut 2 externally threaded and bored to be a sliding fit on the conduit, the bore having a taper complementary to the taper of the sleeve. The nut is adapted to screw into a socket 4 to compress the sleeve so that the sleeve grips the conduit. The sleeve may butt against the shoulder 10 of the socket, and the thread on the sleeve may have a pitch different from that in the socket.
Patent GB-605116-A (GB)
Title: Improvements in or relating to gas turbine power plants
IPC: F02C1/10
Filed: 1945-12-14
Abstract: 605,116. Gas turbine plant. AKT.-GES. FUR TECHNISCHE STUDIEN. Dec. 14, 1945, No. 33914. Convention date, Dec. 29, 1944. [Class 110 (iii)] In a gas turbine plant of the type in which at least the greater part of the working medium describes a closed circuit consisting of a compressor 6, a heat exchanger 7, a heater 3, a turbine 4 driving the compressor, a reheater 2 and a useful output turbine 5, the turbine driving the compressor is arranged at least on a level with the top of the heater 3 and the turbine 5 is arranged on the engine room floor, and the heater 3, reheater 2 and heat exchanger 7 which are of corresponding height and adapted for substantially vertical flow, are so arranged that the upper ends of the heater and reheater are closely adjacent to and connected through pipes 13, 15 to the inlet and outlet of the compressor driving turbine 4, that the lower end of the reheater is adjacent to the inlet of the useful output turbine 5 and that the upper and lower ends of the heat exchanger are closely adjacent to and connected through pipes 18, 19 to the inlet of the compressor 6 and the outlet from the turbine 5. This arrangement allows the plant to be placed in a restricted space and shortens the lengths of the interconnecting pipes. The turbine 4 and compressor 6 may be supported by a frame 22, 23, 24, 25 or placed on top of the heater 3.
Patent GB-898964-A (GB)
Title: Improvements in and relating to photography
IPC: G03C1/42
Filed: 1959-10-07
Abstract: 898,964. Photographic materials. CONSOLIDATED ELECTRODYNAMICS CORPORATION. Oct. 7, 1959 [Dec. 2, 1958], No. 33920/59. Class 98(2). A photographic light - sensitive material which is developable by the action of heat alone comprises a silver halide emulsion layer, a developing agent which becomes active in the presence of water, and a porous solid compound which contains water bound up in its pores and which releases the water on the application of heat to activate the developing agent. The compound which releases water on heating may be sodium or calcium aluminium silicate. A light-sensitive silver halide material may be swabbed with a developer solution containing hydroquinone, 1-phenyl-3-pyrazolidone, sulphite, carbonate, caustic soda, 6- nitrobenzimidazole, benzotriazole, wetting agents and a porous crystalline sodium alumino silicate, and then dried before being exposed. The exposed material is developed by heat.
Patent GB-987786-A (GB)
Title: Method of making dense refractory objects
Inventor: ANDERSON WILLIAM DALLAS
IPC: C04B35/634
Filed: 1961-09-21
Abstract: A suspension of a refractory oxide, having an average diameter less than 25 microns, and a resinous binder, in an organic solvent is sprayed upon a rotating mandrel to form a layer, said layer being subsequently consolidated, fired and machined to form a dense refractory article. The oxides which may be used are alumina, titania, magnesia, zirconia and may contain small proportions of other refractory oxides, e.g. chromic oxide, manganese oxide, and mineralizing agents, e.g. halides of manganese &c. magnesium chloride, calcium fluoride &c. A minor proportion of talc or clay may be added together with a resinous binder, e.g. an acrylic, alkyd, vinyl, polyvinyl resin &c.  A specific sample comprises a suspension of 67.4% (by weight) of inorganic solids (97% of fused ground alumina, 2.25% ground talc, 0.75% kaolin), 25.05% of acetone solvent, 2.18% cumerone indene resin, and 5.37% collodion.  Another specific mixture comprises 70% inorganic solids (99.3% alumina, 0.2% lithium chloride and 0.5% magnesia) in 30% acetane containing resin and a defloculating agent.
Patent GB-189667-A (GB)
Title: Improvements in or relating to mould boards for ploughs
IPC: A01B15/08
Filed: 1921-12-16
Abstract: 189,667. Roberts, T. J. E. Dec. 16, 1921. Mouldboards. - A plough mouldboard is mounted on a backing frame secured to or integral with the plough body. In the form shown the backing frames b, which is substantially the same in configuration as the mouldboard a, is of skeleton form having cross-pieces c over which off-set lugs d, secured to the mould board a, engage. The engaging faces of both the lugs and the cross-pieces are bevelled and they are wedged firmly against each other by the action of a lever-operated cam-member g on the frame engaging a stop or other suitable device on the mouldboard. A cam device may be utilized for freeing the mouldboard from the frame. Lugs f on the cross-pieces prevent vertical movement of the mouldboard. The frame b, c is secured to the plough frame k by a bolt n, and by a bracket o which carries a breast-stay q attached to the cross-pieces c by a member s. The frame b, c may be in two or more parts bolted together so that when worn one part only need be replaced.
Patent GB-637714-A (GB)
Title: Improvements in and relating to the production of metal powders
IPC: C25C5/04
Filed: 1945-12-14
Abstract: 637,714. Electrolytic production of metal powders. JOHANSSON, E. H. E., and TRUEDSSON, C. M. Dec. 14, 1945, No. 33953. [Class 41] In the production of powder from heavy metals or alloys such as iron, nickel, chromium and copper, using anodes of the required metal, the electrolysis is carried out in a non- oxidizing atmosphere with an electrolyte comprising a melt of a salt of an alkali or alkaline earth metal or a radical which is more electropositive than the required metal, which melt does not attack the anode metal except when current is passed and which is kept at a temperature below the melting point of the metal, the required metal being present in the melt in an ionized state in a low concentration, kept constant by avoiding any oxidation and introduction of non-anodic substances which might cause an increase of the anion concentration. The melt is preferably a chloride or other halogen salt of an alkali metal, and is preferably free from oxides or other compounds of the anode metal, with the exception of the salt formed at the anode during the electrolysis. Preferably the cathode also consists of the metal or alloy to be produced in powdered form. To remove oxidizing compounds, the melt, apparatus and electrodes may be heated to redness in an atmosphere of hydrogen. During electrolysis there may be added to the electrolyte alkali or alkaline earth metals which vaporize and thus prevent oxidation ; alternatively, mixtures which liberate these metals may be added. To prevent short-circuiting by liquid metal floating on the electrolyte, these added metals may be contained in tubes having openings controlled in such a way that only vapour can escape to the region above the electrolyte. The vapour may be expelled from the tubes by an inert gas. To prevent sintering of the powder produced, the temperature in the space below the electrodes where the powder collects may be kept low by extending the vessel downwards and by using a low-melting point melt. A coarser powder is produced if halogen salts, preferably fluorides of the anode metal or metals, preferably mixed with alkali metal fluorides, are added to the melt. For the production of iron powder the electrolyser consists of outer and inner vessels 1, 2, the space between them being filled by a non-oxidizing gas such as hydrogen led in at 4 and out at 4<1>. In an annular lid 3, tubes 6 are provided for introducing gases or vapours to drive out the air and prevent oxidation. A cylindrical skirt 3<1> depending from the lid 3 is closed by a circular lid 5, provided with further pipes 6<1>. The vessel, including the skirt 3<1>, is made the cathode, and scrapers 7 are provided for removing the powder from the vertical surfaces as it is formed. A scraper 9 is provided. There may be a plurality of cylindrical extensions 3<1> serving as cathodes. The electrolysis may be carried out with a diaphragm between the cathode and anodes 8.
Patent GB-1131030-A (GB)
Title: Process for the chemical nickel-plating of non-metallic articles
IPC: C23C18/36
Filed: 1967-07-24
Abstract: 1,131,030. Electroless nickel coating. KNAPSACK A. G. July 24, 1967 [Aug. 6, 1966], No. 33958/67. Heading C7F. Non-metallic articles such as plastics and glass are electrolessly Ni coated in a process comprising cleaning the articles by mechanical and/or chemical treatment, activating with an aqueous solution of a palladium salt and then coating in a pre-heated bath at 30 - 70C., the bath containing Ni and hypophosphite ions, nitrils - trismethylenephosphonic acid and a buffer at a pH of 3-9. The concentration of hypophosphite ions is 0.25-1 mol/ litre, the molar ratio of Ni to hypophosphite ions is 0.2-1.6, and the molar ratio of Ni ions to nitrilstrismethylene-phosphonic acid is 0.7-2. The buffer is formed of 0.02 -1 mol Na 2  HPO 4  6H 2 O and 0À002- 0.01 mol KH 2  PO 4  per litre of bath solution and the pH is ajusted with NaOH. A stabilizer such as 2 mgms/litre of lead sulphide or lead acetate may also be added. The Ni deposit contains 5-15% phosphorus. The articles coated may be glass, polypropylene. BAKELITE (Trade Mark) and plastics obtained by graft polymerization of acrylonitrile, butadiene and styrene.
Patent GB-208634-A (GB)
Title: Improvements in or relating to nails
IPC: F16B15/06
Filed: 1922-12-13
Abstract: 208,634. Dew, A. E. Dec. 13, 1922. Serrated and like nails. - A flat serrated nail 4 has a narrow cut 4 at the root of each serration to increase the resistance of the projecting points and render the nail more dificult to withdraw. The nail is tapered and has a hole 7 formed in its wider end to accommodate a transverse security pin. The point of the nail may be chisel-shaped.