baber/WOPTO huggingface dataset:
Patent GB-1361704-A (GB)
Title: Metal oxide varistor
IPC: H01C1/08
Filed: 1972-09-29
Abstract: 1361704 Varistors GENERAL ELECTRIC CO 29 Sept 1972 [1 Oct 1971] 45037/72 Heading H1K A varistor assembly 10 (Fig. 3) comprises a metal oxide substrate 11 having opposed major surfaces 12, 13 and α>10 for current density 10<SP>-3</SP> to 10<SP>2</SP> A/cm<SP>2</SP> in the characteristic I = (V/(C)<SP>α</SP> where I current, V = voltage, and C is a constant. Electrodes 14, 15 ohmically contact surfaces 12, 13 and have attached leads 16, 17. High thermal conductivity spaced plates 19, 20 of, e.g. Cu parallel to the surfaces are bonded together by potting compound 18 enclosing the varistor substrate and its electrodes for heat dissipation, and the compound contains high thermal conductivity insulant material, e.g. boron nitride, beryllium nitride or oxide, aluminium nitride and an epoxy resin. The substrate material is polycrystalline material of, e.g. zinc oxide with a small proportion of bismuth, aluminium, iron, magnesium or calcium oxides sintered together and pressed into shape. One of the spaced plates may be drilled for mounting, and in a modification (Fig. 4, not shown) the leads may be planar extensions of the electrodes.
Patent GB-1105832-A (GB)
Title: Automatic control device for the supply of pressurized fluid
IPC: F17C13/04
Filed: 1965-10-25
Abstract: 1,105,832. Valves. L'AIR LIQUIDE, SOC. ANON. POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE. 25 Oct., 1965 [10 Nov., 1964], No. 46160/65. Heading F2V. A valve 2 which automatically disconnects an outlet 16 or 18 from a source 4 and connects it to a source 8 when the pressure at the source 4 falls, is prevented from making the change over until a sufficiently large pressure difference exists between the sources to overcome the action of at least two spring-biased balls 58 or analogous members. Polyamide cups or washers 59 which may be replaced by others of different size to alter the load applied by the spring to balls 58 are mounted in a cross bore of the valve member. The latter and a portion 6 of the housing having a restriction 38 to co-operate with the balls are also of polyamide. Each end of the valve member is fitted with a graphite charged polytetrafluoroethylene ring 46 urged by an elastomeric ring 42 into engagement with the valve bore. To facilitate movement of the valve and to relax the ring 46 when it is not in its sealing position, the bore may be stepped so that the ring passes first into a portion of larger diameter and then into a portion of intermediate diameter. A washer 20 limits the effect of outlet pressure on the operation of the valve which may have a manual, pneumatic electric position indicator. A pressure gauge may be connected to the outlet 18.
Patent GB-452043-A (GB)
IPC: G03C1/34
Abstract: 452,043. Photographic plates, films, etc.; photographic developers. KENDALL, J. D., 23, Roden Street, Ilford, Essex. Feb. 16, 1935, No. 5078. [Class 98 (ii)] Photographic materials employing gelatin silver halide emulsions are stabilized by treating the material with 2-mercapto-4- hydroxy-pyrimidine or one of its alkyl, aralkyl or aryl substitution derivatives or a tautomeric compound, or an alkali metal or ammonium salt thereof. The material may be bathed in a solution containing the stabilizing compound, or the stabilizing compound may be incorporated in the emulsion in the support in an intermediate layer between the emulsion and the support, such as the baryta coating used in photographic papers, in a protective layer over the emulsion, or in the wrapping material. Compounds referred to are 6- methyl-2-mercapto-4-hydroxy-pyrimidine, 5.6- benz-2-mercapto-4-hydroxy-pyrimidine and keto-tetrahydro-thio-pyrimidines. Silver chloride, bromide, chlorobromide and iodobromide emulsions are referred to. The Provisional Specification refers also to the incorporation of these compounds in the developer.
Patent GB-1387829-A (GB)
Title: Structural members
IPC: E04C2/20
Filed: 1971-09-29
Abstract: 1387829 Toy structural panels SEAGEE DESIGNS Ltd 12 Dec 1972 [29 Sept 1971] 45305/71 Heading A6S [Also in Division E1] An equilateral structural panel for toys has uniformly spaced connecting means 11, 12 on each side edge to interconnect with corresponding panels. Each side has a single hook 11 and a single aperture 12 the engagement between which allows relative pivotal movement about the edge. The front face of the panel is planar but the rear face is provided with ribs 10b and recessed portions 10a. The edges 10c are bevelled. The elements may be square and made of rigid foamed plastics or transparent plastics and they may be provided with a window opening. In an alternative embodiment separate connecting elements are located in uniformly space cut outs in the side edges of the panels.
Patent GB-1063484-A (GB)
Title: Solid-state image intensifier
IPC: H05B33/12
Filed: 1963-11-18
Abstract: An electroluminescent photo-conductive device comprises an electroluminescent layer (3, Fig. 1), a photo-conductive layer (6) and an electrical impedance layer (8), and means for applying two variable A.C. voltages V1 and V2 across the three layers (3, 6 and 8) and the two, photo-conductive and electroluminescent, layers (3 and 6) respectively, the voltages being out of phase and the phase difference variable, to vary the contrast obtainable in the electroluminescent screen.  The device may be mounted between glass plates (1, 11) and have electrodes (2, 7 and 9).  The electroluminescent material may be e.g. ZnS with Cu or Al as activator, mixed with an epoxy resin to give a layer 60 microns thick. The photo-conductive layers, sensitive to X-rays, alpha, beta or gamma rays, an electron beam, or visible or infra-red rays, may be, e.g. CuS with copper chloride activator, mixed with an epoxy resin to give a layer 60 microns thick. The device may have an opaque reflective layer (4), e.g. BaTiO3, mixed with epoxy resin, 20 microns thick, and an opaque layer (5) 10 microns thick, of black organic resin paint. The impedance element (8) may be made of a transparent poly-ester, of capacitive impedance only, 50 microns thick. Transparent electrodes (2 and 9) may be of tin oxide.  One electrode (7) may be a wire grid or mesh, and alternate wires may have, across them, a small D.C. potential to reduce deterioration in the conductivity of the photo-conductive layer. To produce a "negative image, the photo-conductive layer may be one, e.g. CdS activated with silver and gallium, whose conductivity increases with visible, ultra-violet, alpha or X-rays, but decreases with infra-red radiation, the screen being kept irradiated with infra-red. Suitable circuits, comprising an oscillator (12), phase shifter (13, 14) and amplifiers (15, 16) are described.
Patent GB-1438112-A (GB)
Title: Throttle valve arrangement
IPC: F02C9/38
Filed: 1972-10-03
Abstract: 1438112 Valves LUCAS INDUSTRIES Ltd 20 Sept 1973 [3 Oct 1972] 45458/72 Heading F2V [Also in Division F1] A throttle valve arrangement for a gas turbine fuel system comprises fixed orifices 20, 21 in series with orifices 12, the flow area of the latter being varied by an axially slidable valve sleeve 13 movable in the closing direction by flow pressure against the action of spring 36. The internal surface of sleeve 13 is stepped at 18 to define with the stepped head 19 of fixed spigot member 17 an annular chamber 9. The latter is subject to the outlet pressure in groove 22 downstream of orifices 12 via drillings 23, 24 in sleeve 11 and bearing 25 respectively, and drillings through sleeve 13 between groove 26 and chamber 9. The pressures upstream and downstream of fixed orifices 20, 21 act respectively on the top and bottom of sleeve 13 so as to position the latter in conjunction with the pressure in chamber 9 and force of spring. Sleeve 13 is rotatably driven by gear 14 to prevent sticking. The lower end of sleeve 11 communicates via spill valve 33 with chamber 30.
Patent GB-1059568-A (GB)
Title: Treatment of shaped articles
Inventor: OWEN JOHN BRYN
IPC: D06M15/59
Filed: 1962-12-03
Abstract: 1,059,568. Antistatic coatings. IMPERIAL CHEMICAL INDUSTRIES Ltd. Nov. 18, 1963 [Dec. 3, 1962], No. 45466/62. Heading B2E. [Also in Divisions B5 and D1]. Fabrics, foils and films comprising a major proportion of hydrophobic polymeric material are rendered antistatic and their tendency to attract dirt and dust is reduced together in some cases with an improvement in their dyeing properties e.g. with cotton dyestuffs, by treating them in the presence of an alkali with (1) a sulphonium salt which in the presence of alkali liberates the following sulphonium cation in which R 1  and R 2  independently represent hydrogen or an alkyl group containing 1-3 carbon atoms and R 3  and R 4  independently represent the group (-CR 1 =CHR 2 -), or an alkyl, substituted alkyl (where the substituent is not an -SH or 7NH group and is substantially stable to alkali) or aralkyl radical and (2) and aqueous solution of a reactive polymeric substance having at least one reactive -OH, = NH or -SH group in each molecule, the increase in the dry weight of the treated material being 0.2-3%. Suitable sulphonium salts are # haloethyl salts such as (XCH 2 CH 2 ) 2 R 3 S<SP>+</SP>Y<SP>-</SP> and (XCH 2 CH 2 ) 3 S<SP>+</SP>Y<SP>-</SP> in which X is halogen and Y is an amino, e.g. tris (#-chloroethyl) sultris #-hydroxy ethyl sulphonium salts such as phonium chloride, and esters of mono, bis- and e.g. the disodium salt of tris (# sulphato ethyl). sulphonium inner salt. The polymeric substance may be starch or a starch ether, carboxymethyl or a hydroxyalkyl cellulose, sodium alginate, glue, gelatin or a condensation product of ethylene oxide and a polyamide forming substance. The alkali may be an alkali metal hydroxide, bicarbonate, or carbonate, ammonium carbonate, trisodium phosphate, sodium sesquicarbonate or borax. The materials may be treated simultaneously or consecutively in any order with the alkali, sulphonium salt and polymeric material in any order from aqueous media and may subsequently be dried and heated at 60- 220C. for from 20 seconds to 5 minutes. The hydrophobic polymeric materials from which the treated articles are made may be polyethylene, polypropylene, polyamides, polyesters, polymers or copolymers of acrylonitrile, cellulose esters, e.g. cellulose triacetate, or glass. Fabrics containing fibres made from synthetic hydrophobic polymeric materials in admixture with cotton fibres may be treated.
Patent GB-963506-A (GB)
Title: Golf club head cover
IPC: A63B55/00
Filed: 1961-12-20
Abstract: 963,506. Golf club covers. R. H. MESINGER. Dec. 20, 1961 [Jan. 10, 1961], No. 45666/61. Heading A6D. A cover for the head of a golf club comprises a seamless bag moulded from a plasticized vinyl type of plastics material, the head portion 10 of the cover being inclined at an angle to the portion 11 such that when the cover is pulled on to the head of the golf club, the heel and toe portions h and t respectively of the latter, bind against the adjacent portions of the cover, thereby tending to urge the shaft S of the club into engagement with a groove 12 formed in the portion 11 of the cover. The cover further comprises a strengthening rib 17, a pull tab 18 to facilitate removal of the cover from the clubf and an anchorage member 20 by means o which the cover may be tied to a golf bag for example. The interior surface of the cover may be coated with a sealing varnish, in order to protect the club head from any deleterious effect arising out of its contact with the material of the cover.
Patent GB-1140479-A (GB)
Title: A process for producing highly crimpable polyamide composite filaments
IPC: D01F8/12
Filed: 1967-10-06
Abstract: 1,140,479. Composite polyamide filaments. KANEGAFUCHI BOSEKI K.K. and SNIA VISCOSA SOC. NAZIONALE INDUSTRIA APPLICAZIONI VISCOSA S.p.A. 6 Oct., 1967 [10 Oct., 1966], No. 45916/67. Heading B5B. Polyamide composite filaments having high crimpability and dyeability are formed by melting separately, and spinning simultaneously through a common spinneret orifice to obtain a unitary filament which is then drawn at room temperature, two different fibre-forming thermoplastic synthetic linear polymers, the two polymers being arranged and bonded eccentrically as distinct filamentary components along the length of the filament, one of the components being polycaproamide, and the other being a copolyamide obtained by subjecting a mixture of 0À01 to 5% by weight of a nylon salt consisting of a dicarboxylic acid and a polyfunctional diamine having the general formula H 2 N-(CH 2 ) n -R-(CH 2 ) n -NH 2 . wherein R is and n is 3 to 11, 3 to 20% by weight of another nylon salt, and 75 to 95% by weight of polycaproamide forming components, to polycondensation. Numerous examples of polyfunctional diamines and dicarboxylic acids which may be used to form the first nylon salt above are given. The second nylon salt above may be formed from the same dicarboxylic acids and aliphatic, aromatic or heterocyclic diamines other than the said polyfunctional diamines, a nylon salt consisting of an akylene diamine and isophthalic acid being preferred. Polycaproamide forming components mentioned are #-caprolactam and #- aminocaproic acid. The two components may suitably be bonded in a conjugate ratio ranging from 2: 8 to 8: 2, and may be bonded in side-byside relationship, or in sheath-core relationship.
Patent GB-1323589-A (GB)
Title: Photo electrophoretic imaging process
IPC: G03G17/04
Filed: 1970-09-29
Abstract: 1323589 Photo-electrophoretic imaging XEROX CORP 29 Sept 1970 [2 Oct 1969] 46276/70 Heading G2H  In a photo-electrophoretic imaging process employing an injecting electrode in the form of a transparent plate 2 connected to earth, a blocking electrode in the form of a roller 5 connected to a source of potential, and an imaging suspension 3 comprising cyan, yellow and magenta particles, the suspension is exposed to electromagnetic radiation which has been passed through an infrared filter 16, a transparency 14, and a sodium yellow filter 17.
Patent GB-1007557-A (GB)
Title: Inorganic coating composition
IPC: C04B28/24
Filed: 1961-12-27
Abstract: An aqueous coating composition, for coating metals, comprises a film-forming binder consisting of lithium hydroxide and alkali-stabilized colloidal silica, the molar ratio of said lithium hydroxide expressed as lithium oxide to said colloidal silica being, on a dry basis, from 1:40 to 1:2.5 and the alkali (e.g. NaOH, KOH) for stabilizing said colloidal silica being present from 0.3% to 4% by weight of alkali metal oxide based upon the weight of water present, and a finely divided metal pigment reactive with said binders.  The metal pigment may be zinc, lead, aluminum or magnesium. Other components specified include red lead, lead dioxide, lead chromate, zinc oxide, zinc chromate, iron oxide, aluminium oxide, titanium dioxide, lithopone, zinc sulphide, asbestine carbon black, ultramarine blue, Hansa yellow, sienna, burnt umber, china clay, chromic oxide, blanc fixe, chrome yellow, mica, barytes, graphite, bentonite, vermiculite, sulphuric acid, hydrochloric acid, acetic acid, phosphoric acid, nitric acid, sodium bisulphate and sodium dihydrogen phosphate.  The colloidal silica may be prepared by passing alkali metal silicate through an ion exchange resin to remove the alkali.  The composition may be prepared by mixing and heating lithium hydroxide solution with alkali-stabilized colloidal silica and then adding the metal pigment.ALSO:An aqueous coating composition, for coating metals, comprises a film-forming binder consisting of lithium hydroxide and alkali-stabilized colloidal silica, the molar ratio of said lithium hydroxide expressed as lithium oxide to said colloidal silica being, on a dry basis, from 1:40 to 1:2.5 and the alkali (e.g. NaOH, KOH) for stabilizing said colloidal silica being present from 0.3-4% by weight of alkali metal oxide based upon the weight of water present, and a finely divided metal pigment reactive with said binders.  The metal pigment may be zinc, lead, aluminium or magnesium. Other components specified include red lead, lead oxide, lead chromate, zinc oxide, zinc chromate, iron oxide, aluminium oxide, titanium dioxide, lithopone, zinc sulphide, asbestine, carbon black, ultramarine blue, Hansa yellow, sienna, burnt umber, china clay, chromic oxide, blanc fixe, chrome yellow, mica, barytes, graphite, bentonite, vermiculite, sulphuric acid, hydrochloric acid, acetic acid, phosphoric acid, nitric acid, sodium bisulphate and sodium dihydrogen phosphate. The colloidal silica may be prepared by passing alkali metal silicate through an ion exchange resin to remove the alkali.  The composition may be prepared by mixing and heating lithium hydroxide solution with alkali-stabilized colloidal silica and then adding the metal pigment.
Patent GB-1454365-A (GB)
Title: Apparatus for treating slide specimens
IPC: G01N1/31
Filed: 1972-10-06
Abstract: 1454365 Apparatus for treating microscope specimens W H B MAWHINNEY 20 Nov 1973 [6 Oct 1972] 46328/72 Heading G2J Microscope slides are positioned on a slide carrier 11 having one or more recesses 12 and inlet and outlet pipes 16, 17 which communicate with the recesses so that a liquid may be drawn through the recesses under the slides, in order to treat the specimens. Apparatus for delivering a sequence of liquids to the slide carrier is shown in Fig. 6. Tubes 28, 31 are connected to the inlet and outlet pipes 16, 17 respectively. A rack carrying containers of required reagents is advanced along a support 23 until the first container is positioned beneath a pipe 29 which is connected to the tube 28. The pipe is lowered into the reagent and the liquid is sucked through the tubes to the slide carrier recesses. After the required treatment time has elapsed, the vacuum is cut off, the tube 29 raised and the rack advanced until the next container lies below the tube 29, when the process is repeated. An electric circuit Fig. 7 (not shown) for providing automatic, time controlled, sequential treatment of the specimens is described.
Patent GB-1221907-A (GB)
Title: Pressure regulator
IPC: F16K1/12
Filed: 1969-09-23
Abstract: 1,221,907. Pressure regulator. VAPOR CORP. Sept. 23, 1969 [Oct.30, 1968], No. 46735/69. Heading G3P. A piston 18 is slidable within a cylinder 13 mounted coaxially between the inlet 11 and outlet 12 and is connected by a hollow shaft 17 to a valve member 16 of the same diameter as the piston. The pressure in chamber 20 is always the same as the inlet while that on the opposite side of the piston is regulated by relief valve 27. Piston 18 has a restriction 26 therethrough and is biased to the right by spring 23. In another embodiment the restriction 26 is dispensed with and the relief valve 27 is replaced by adiaphragmoperated valve connected to the inlet.
Patent GB-1512710-A (GB)
Title: Polymer/polyols and polyurethane derivatives thereof
Inventor: SEEFRIED C G
IPC: C08L33/00
Filed: 1975-11-12
Abstract: 1512710 Polyoxyalkylene polyols; polyurethane foam UNION CARBIDE CORP 12 Nov 1975 [13 Nov 1974] 46762/75 Headings C3R and C3P A normally liquid polyol consists essentially of: (I) polyoxyalkylene blocks comprising polyoxyalkylene groups containing at least 3 carbon atoms; (II) blocks of polyoxyethylene units at least 35% of which end-block units I and are terminated with primary OH groups and (III) the residue of a starter containing active hydrogen atoms. The polyol contains 90-97% by wt. of units I, e.g. polyoxypropylene blocks, and 10-3% by wt. of blocks of units II. It has an average of at least 3À2 OH groups per molecule, a hydroxyl number #45. At least 35 % of the OH groups present are primary. Another embodiment of the invention comprises a polymer/polyol mixture obtained by polymerizing a minor amount of at least one ethylenically unsaturated monomer in the presence of a polyol as defined above. A typical monomer mixture comprises 40-85% by wt. of acrylonitrile and 60-15% by wt. of styrene. The resultant mixture may comprise 3-35% by wt. of polymer and 97-65% by wt. of polyol. Elastomeric polyurethane may be obtained by reacting a polyol or polyol/ polymer mixture as defined above with an organic polyisocyanate in the presence of a catalyst for the polyurethane forming reaction. Foam, suitable for upholstery, may be prepared by conducting the reaction in the presence of a blowing agent and a silicone surfactant.
Patent GB-1409433-A (GB)
Title: System for selective operation of money dispensing machine
IPC: G07D11/00
Filed: 1972-10-17
Abstract: 1409433 Dispensing money GLORY KOGYO KK 17 Oct 1972 [30 Oct 1971] 47791/72 Headings G4X and G4H A money dispenser which is operable to dispense designated sums in a plurality of denominations includes means for specifying the denominations required, storage means for storing separately the amount data for each denomination specified and control means for ensuring that whilst the storage means is receiving amount data for one denomination it cannot receive further denomination specifying signals. In the embodiment shown there are four storage circuits M Tt , MFt, Mot and MFh provided respectively for 10,000; 5000; 1000 and 500 yen denomination notes, the dispenser is also operable to dispense a sum in the minimum number of notes and the circuit MTt is used to register a sum designated to be dispensed in this mode. Signals STt, Tt; SFt, Ft; Sot, Ot; SFh, Fh are produced when the respective denomination is selected, circuit B functioning when no denominations have been selected to issue an instruction signal RI 1  to permit registration of the sum designated to be dispensed in circuit MTt via line IN. When the sum is registered circuit D functions to block any further registrations in the storage circuits by means of a signal on line Lo. When a particular denomination of note is specified the registration of the amount required in that denomination is controlled by respective circuits E 1  to E 4  which receive the signals Tt, Ft, Ot and Fh respectively and signals from a sequence control circuit circuit f, comprising a diode matrix, which prevents the simultaneous registration of amounts in the storage circuits.
Patent GB-1454538-A (GB)
Title: Arrangement for digitizing the bearing voltages of a multichannel  direction finder
IPC: G01S3/30
Filed: 1973-10-12
Abstract: 1454538 Systems using A/D converters; radio direction finding LICENTIA PATENT VERWALTUNGS GmbH 12 Oct 1973 [13 Oct 1972] 47883/73 Headings H3H and H4D In an arrangement for digitizing the directionfinding voltages X, Y (e.g. from a crossed Adcock antenna system) and the sense determination channel voltage Z (from a non-directional antenna) of a multi-channel direction-finder, sample and hold circuits 3, 4 are provided for the X, Y channels and means 2 are provided in the Z channel for determining the time period for sampling so that the digitized voltages of the X, Y channels correctly contain the amplitude A and azimuth α of the incident wave. The channel voltages are (in general, A#A<SP>1</SP>) and X, Y are sampled by pulses derived at the zeroes of Z (i.e. #t=n#). The azimuth α is then obtained as α=tan<SP>-1</SP> (y 1 /x 1 ) from the samples x 1 =A cos α, y 1  = A sin α. Similar circuits may be used with a phase shifter 23 to derive Z. Means are provided to determine the right quadrant for α, and α may be read from a ROM connected to the converters, possibly via quotient-forming or normalizing circuits, Figs. 8, 9 (not shown). In addition, the angle of the elevation # of an incident wave may be determined using the apparatus of Fig. 12. The antenna voltages are, in this more general case from which, using sin # # # and d=2a, Signals x 1 , y 1  are derived as above; these are at 31, 32 and cos # is obtained at 33.