baber/WOPTO huggingface dataset:
Patent GB-283113-A (GB)
Title: Improvements in or relating to frequency responsive electrical apparatus
IPC: G01R23/00
Filed: 1927-12-30
Abstract: 283,113. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Skellett, A. M., and Zworykin, V. K.). Jan. 3, 1927, [Convention date]. Vacuum tubes. - Piezo - electric apparatus, for giving an indication of the presence of the resonance frequency in an associated circuit, comprises a crystal enclosed in an envelope containing neon or other readily ionizable gas at low pressure, and an additional electrode also within the envelope, current passing to this electrode and in an external circuit when the occurrence of resonance causes a glowing of the crystal and ionizes the surrounding gas. The external current may be amplified, and may operate a relay controlling a bell &c. The sharpness of the resonance phenomenon enables a number of adjacent modulation frequencies superposed on a single carrier wave to select separate apparatus by remote wireless control. As shown in Fig. 1, the crystal is supported on a standard 4 within an envelope 1, and the input frequency is applied through a resonant circuit 11, 12 across the support 4 and a small electrode 6. An auxiliary electrode 8 surrounding the axial electrode 6 is connected through a choke 16 to the grid of an amplifier 15. At resonance, current flows from a battery 18 through a resistance 17, choke 16, and across the path 8, 6 to the earth connections 54, 55. This current raises the potential of the grid 14 and operates the plate-circuit relay 24 to ring the bell 25. Fig. 2 shows the crystal apparatus and the amplifying-valve both enclosed in a single envelope. The crystal 5 is supported between an upper plate 38 and a lower plate 36, the pressure on the crystal being determined by springs 41 abutting through insulating beads against a bail 42 carried by the lower plate 36. This plate is spaced from a parallel plate 35 to form a heat shield, and both are electrically connected to a perforated tube 29 which forms a grid surrounding an axial electrode 32. The input currents are applied to the crystal electrodes 38, 36 from the tuned circuit 11. 12 through a lead 43 and a lead 4 respectively, the lead 4 being connected by an arm 28 to the perforated grid 29. On the occurrence of ionization, current passes through the relay 52 from an A.C. source 51 and transformer 50, the circuit being completed by the discharge path between the axial electrode 32 acting as anode, and the split cylinder 45 acting as cathode.
Patent GB-1133558-A (GB)
Title: Photographic camera with flash contact
IPC: G03B15/04
Filed: 1967-08-02
Abstract: 1,133,558. Flash-operating mechanism. FRANKE & HEIDECKE G. m.b.H. [trading as ROLLEIWERKE FRANKE & HEIDECKE]. Aug.2, 1967 [Sept.3, 1966], No.35420/67. Heading G2A. The shutter-controlling mechanism of Specification 1,109, 036, as shown in Fig. 1, is modified for the operation of flash contacts. The master drive member 2 is cocked by being rotated anticlockwise about its pivot 1 until a bent-over lug 5 at one end is latched behind a release member. When this is actuated, member 2 is spring-driven anti-clockwise (direction of arrow A), and two pawls 3, 4 carried by member 2 engage respectively pin 7 and then pin 8 of a shutter blade driving member to turn it first anti-clockwise and then clockwise, so opening and then closing the shutter. The cocking is effected by rotating a cam 12 clockwise, which causes segment 10 to pivot anti-clockwise, a fork 9 on the latter acting on lug 5 and so pivoting member 2 to the cocked position. When member 2 runs down, to open the shutter, segment 10 pivots clockwise, and a projection 14 at one end engages against a pawl 15, and pivots it so that its other end 16 closes the flash contacts 17. Pawl 15 is normally held in an inoperative position by a spring 18.
Patent GB-337230-A (GB)
Title: Improvements relating to feed mechanisms for presses for operating on metal and other sheets
IPC: B21D28/08
Filed: 1929-11-20
Abstract: 337,230. Griffiths, H. A. Nov. 20, 1929. Metal-sheet feeds; spacing-racks.- Presses for performing a series of cutting, drawing &c. operations on sheets of metal or other material and more particularly for cutting and drawing circular blanks for tin boxes comprise means for feeding the work in one direction, preferably at the end of a number of feeding motions at right angles thereto. A guide a slidably supported on a shaft d .and roller e carries a slide b on which the work is held and has a rack bar g engaged by a spring- pressed pawl h on the slide b. At the end of a row of operations one of a pair of cams k on a shaft j is rocked by the press mechanism and strikes a lever l pivoted to the guide a and to a bar m, the latter being attached to a pair of bell crank levers n adapted to raise a bar i and release the pawl h from engagement with the rack. The slide b thus moves under gravity or by the action of a weight until the pawl meets the next notch in the rack, the cam k having rotated to permit the engagement, and enable another row to be effected.
Patent GB-1372942-A (GB)
Title: Process for storing and packaging cosmetic compositions
IPC: A61Q5/08
Filed: 1972-07-28
Abstract: 1372942 Refrigeration of hair bleaching and dyeing compositions L'OREAL 28 July 1972 [29 July 1971] 35476/72 Headings DIB and D1P [Also in Divisions A2 A5 B8 C4 and F4] In a process for storing and packaging a hair bleach or a hair dyestuff e.g. oxidation and direct dyes which comprises an aqueous or aqueous-alcoholic solution together with one or more constituents which are immiscible or unstable in solution at ambient temperatures, the composition constituents are mixed together either before or after being frozen and are thereafter stored at a temperature below freezing. The prepared composition before freezing may contain at least two constituents which react exothermically with one another. The frozen composition may be cut into single dosage units which are separately stored or the prepared composition may be introduced with a suitable propellant into a pressurized container equipped with a value which is thereafter frozen and stored at a temperature below freezing. Storage may occur in domestic-type freezers at temperatures from -10 to -40C and freezing carried out with a mixture of solid carbon dioxide and alcohol or with a liquefied gas such as nitrogen.
Patent GB-1147308-A (GB)
Title: Process for extracting organic acids from aqueous solutions thereof
IPC: C12P7/48
Filed: 1967-08-02
Abstract: 1,147,308. Extracting carboxylic acids. MELLE-BEZONS. 2 Aug., 1967 [4 Aug., 1966; 22 March, 1967], No. 35493/67. Heading C2C. A process for extracting citric, itaconic and lactic acids from aqueous solutions produced by fermentation and tartaric acid produced from tartar, comprises extracting the acids with a solvent comprising a mixture of triisobutyl phosphate, or a tri-alkyl phosphate in which the alkyl groups may be the same or different and have 2-5 C atoms, and a minor proportion of at least one liquid diluent with a specific weight lower than the phosphate, a low solubility in water and chemically inert to the acid. Diluents include hydrocarbons, ethers, esters and ketones. The extraction may be continuous and counter-currently in two stages, the second counter-extraction being at a higher temperature than the first extraction. Two types of apparatus for the continuous extraction is described.
Patent GB-1438559-A (GB)
Title: Method for manufacturing a composite sintered structure
IPC: H05K1/03
Filed: 1973-07-25
Abstract: 1438559 Sintered composite insulating & conducting layers HITACHI Ltd 25 July 1973 35530/73 Heading C7D  A composite sintered structure which may be used in an integrated semi-conductor circuit device is made by depositing at least one layer of a green ceramic insulating paste 4 and at least one layer of a green ceramic conductor paste 2 on a green ceramic sheet I consisting of the same ceramic as the insulating paste and sintering the composite e.g. at 1450-1650‹C in a reducing or inert atmosphere. The ceramic used in the pastes and sheet is preferably 88-95% Al 2 O 3  the balance mineralizers such as S i O 2  and MgO. The conducting paste contains 50-70% W, Ti or Mo and the preferred binder for the pastes and sheet is polyvinyl butyral.
Patent GB-1520123-A (GB)
Title: Water-dividing wall and swimming pool provided with such a wall
IPC: E04H4/14
Filed: 1975-08-28
Abstract: 1520123 Dividing walls for swimming pools J BOS 28 Aug 1975 [3 Sept 1974] 35541/75 Heading A4N [Also in Division El ]  A wall for dividing a swimming pool into two pools, 1, 2, comprises a pontoon 5, to one side edge of which is hinged a rigid, water-impermeable partition 3, and means mounted in the pontoon and arranged to impart a limited pivotal movement to the partition on application of a pulling force to cables 6, which extend downwardly from within the pontoon, the continued application of the pulling force causing the pontoon to descend thereby continuing the pivotal movement of the partition from an initial vertical position to a final horizontal position, which means are lockable such that the pontoon may be supported by the vertical rigid partition. The side edge of the pontoon remote from partition 3 may be connected, by means of hinges, with a supporting screen 7 which, in the same way as the partition 3, may be pivoted from an initial vertical position to a horizontal position. Each cable 6 is connected with a respective lever 9 capable of converting a downward force exerted by the cables into a sideways force exerted upon the partition 3 or upon the screen 7, the pivoting motion of each lever being limited by stops. When the partition and screen are vertical, the levers are locked against pivoting by a catch or wedge cooperating with a respective stop.
Patent GB-1071106-A (GB)
Title: Improvements in and relating to reciprocating proportioning pumps
IPC: G05D11/00
Filed: 1964-08-31
Abstract: 1,071,106. Delivering measured quantities of liquid. JET SPRAY COOLER Inc. Aug. 31, 1964 [Nov. 18, 1963], No. 35548/64. Heading B8N. [Also in Division F1] A proportioning device for supplying metered quantities of water and syrup to a reservoir 12 comprises a housing 20, a reciprocable piston means 50 which defines together with a diaphragm 60, compartments 66 and 68 in the housing and a fixed piston 38 on which piston 50 reciprocates and with which it defines a syrup metering chamber. Water under pressure is continuously connected to compartment 68 through a conduit 110 and the compartment 66 is alternately connected to the water supply and the reservoir 12 under the control of a solenoid actuated valve 112. With compartment 66 connected to reservoir 12 the water pressure in compartment 68 causes water to be fed to the reservoir and syrup from a container 14 to be drawn into the metering chamber (80), Fig. 2 (not shown), through check valve 96. On reversal of valve 112 syrup is pumped to the reservoir through check valve 100, the water pressure in compartment 66 raising the piston 50 against the pressure in compartment 68 due to the difference in effective piston areas. Valve actuating solenoid (120), Fig. 5 (not shown), is operated by a circuit incorporating a switch (122), actuated by an electric motor driven cam (124). An override switch (128) may be included in the circuit operated by a float (130) in the reservoir together with a device which senses when the syrup container is empty.
Patent GB-744118-A (GB)
Title: Improvements in or relating to coating compositions
IPC: C08G59/68
Filed: 1953-12-22
Abstract: A coating composition comprises an ester of an olefinically unsaturated fatty acid having from 12-22 carbon atoms in the molecule with the condensation product of a dihydric phenol and epichlorhydrin or dichlorhydrin, together with an alkaline earth metal salt of an alkylated hydroxybenzoic acid having at least 6 carbon atoms in the alkyl substituent.  The salt prevents wrinkling of the hardened film and is used in a proportion up to 4 per cent by weight of the ester. The composition may contain also conventional constituents such as driers, thinners, pigments and resins.  In example I, 132 parts of the condensation product of 4 mols. 2.2-bis-(4-hydroxyphenyl) propane and 5 mols. epichlorhydrin and 169 parts of the methyl ester of dehydrated castor oil fatty acids were esterified after drying, using 0.1 per cent of sodium methylate in xylene as catalyst.  The product was formed into a 50 per cent xylene solution and mixed respectively with 0.4 per cent, by weight of the ester, of the basic calcium salt of a C14-18 alkyl salicylic acid, calcium octylphenate and calcium dodecylbenzoate.  Of these compositions the one containing the salt of the alkylated salicylic acid gave a smooth film and the others a frosted film as did a composition containing no additional salt.  In example II the linseed oil fatty acid esters of the condensation product of example I were compounded in 50 per cent xylene solution with 1 per cent of the calcium salt of myristyl salicylic acid.  A 3 mm. wet film after drying at room temperature and baking at 150 DEG C. for 30 minutes was smooth while the control was rivelled.  In example III the solutions of example I and II were subjected to the webbing test of B.S.S. 256-1936, the films after 24 hours at 38 DEG C. being smooth while the control was rivelled.  In example IV the tests of example III were repeated but using 2 per cent of the calcium alkyl salicylic acid salt.  In example V the linseed oil fatty acid esters solution of example II was modified with melamine-formaldehyde resin in the ester/resin ratio of 70 : 30 and 1 and 2 per cent of the calcium alkyl salicylic acid salt were added respectively to two portions which were subjected to the webbing test of example II, together with a control.
Patent GB-448633-A (GB)
Title: Improvements in or relating to poultices
IPC: A61F7/02
Filed: 1934-12-11
Abstract: A plastic poulticing mass consists of a mixture of diatomaceous earth, powdered clay and glycerin or the like.  The diatomaceous earth should be highly porous and may be calcined at a temperature of 900 DEG  F.  The clay may be kaolin, fire clay, common clay or any friable non-adhesive earth of high density.  The diatomaceous earth may be formed into pellets without a binding agent which are rolled in the powdered clay before addition of the glycerin.  In a modification powdered cork may be added to the other ingredients.
Patent GB-1357787-A (GB)
Title: Multiway valve
Inventor: STOLL K
IPC: F15B13/04
Filed: 1971-07-29
Abstract: 1357787 Valves FESTO-MASCKINEN-FABRIK GOTTLIEB STOLL 29 July 1971 [5 Aug 1970] 35614/71 Heading F2V A multi-way valve comprises a pair of control diaphragms 5, 6 receiving control pressure through ports 7, 8 respectively, and a pair of support diaphragms 1, 2 which serve to move the spool 3 in a frictionless manner and are arranged to provide "snap-action" to the spool's two end positions. The diaphragms 1, 2 also carry closure surfaces 18a, 18d co-operating with valve seats 17a, 17d and the spool carries an 0-ring 18bc movable between valve seats 17b, 17c. A spring (11) may replace one of the control diaphragms (Fig. 2, not shown). The "snap action" may alternatively be achieved by the use of magnets (Fig. 4, not shown). Where there are n paths to be controlled the valves are constructed to have n - 1 valve seats and n - 2 closure members.
Patent GB-1430077-A (GB)
Title: Silicone elastomers
IPC: C08L83/04
Filed: 1972-07-31
Abstract: 1430077 Reinforced silicone elastomers IMPERIAL CHEMICAL INDUSTRIES Ltd 13 July 1973 [31 July 1972] 35637/72 Headings C3G and C3T A reinforced silicone elastomer comprises a blend of from 95% to 20% by weight of crosslinked silicone elastomer and from 5% to 80% of a polymeric material, the reinforced silicone elastomer being formed from a composition comprising at least one cross-linkable poly- (organosiloxane) comprising repeating units having the structure -[-Si(R)(R 1 )-O-] x -, where x is an integer and the groups R and R<SP>1</SP>, which may be the same or different, are hydrocarbyl radicals or substituted hydrocarbyl radicals, and at least one polymerizable ethylenically unsaturated material, and in which a substantial proportion of the cross-linking of the polyorganosiloxane is effected before a substantial proportion of the ethylenically unsaturated material is polymerized. The ethylenically unsaturated material subsequently being polymerized. When the poly(organosiloxane) comprises a plurality of hydroxyl groups, an alkyl silicate or alkyl polysilicate may be used as cross-linking agent and when the poly- (organosiloxane) comprises a plurality of ethylenically unsaturated groups, an alkyl hydrogeno polysiloxane may be used as crosslinking agent. Examples are given in which (a) a hydroxy-terminated poly(dimethylsiloxane), ethyl polysilicate, methyl methacrylate, dibutyl tin dilaurate, t-butyl peroctoate and nbutylamine mixture is heated in a mould until gelation occurs and then heated further; (b) a vinyl-terminated poly(dimethylsiloxane) containing vinyl groups along the polymer chain, methyl methacrylate, methylhydrogeno-polysiloxane, chloroplatinic acid and t-butyl peroctoate mixture is heated as in (a); (c) a mixture as in (a), except that methyl methacrylate is replaced by n-butyl methacrylate, styrene, a divinyl benzene/ethyl vinyl benzene mixture or a styrene/ethylene glycol dimethacrylate mixture and t-butyl perbenzoate is used as polymerization catalyst is treated as in (a); (d) as in (a), except that ethyl orthosilicate replaces ethyl polysilicate, or azobisisobutyronitrile is used as polymerization catalyst.
Patent GB-1148738-A (GB)
Title: Method of Preparing an Oxygen Cotaining Thin Inorganic Film Adherently Deposited on a Heat-Resistant Substrate.
IPC: C01B13/14
Filed: 1966-08-10
Abstract: 1,148,738. Inorganic compound films. NATIONAL CASH REGISTER CO. 10 Aug., 1966 [29 Sept., 1965], No. 35784/66. Heading C1A. [Also in Divisions B1 and C4] A process for making an oxygen-containing thin inorganic film on a heat-resistant substrate, said film comprising a cation moiety and an anion moiety, which has oxygen bound therein, comprises the steps of heating the substrate to a temperature between 177 and 454 C., spraying on to said substrate an ionized aqueous solution of at least two compounds, the dissolved cations and anions of which provide the cation and anion moiety of the final film, wherein all the elements needed to form the film are in the spraying solution, and post-heat-treating the sprayed film for from 10 minutes to 8 hours at a temperature of from 537 to 1371 C. The ionized aqueous solution preferably contains an activator precursor. The coatings may be opaque or transparent. Specified substrates are quartz glass, metals, ceramics and graphite. Many examples of suitable reactants and activators are specified, the examples describe the preparation of coatings of Zn 2 SiO 4 .- Mn, CaWO 4 , MgWO 4 , CdWO 4 , Zn 2 GeO 4 :Mn, Cd 2 B 2 O 5 .Mn, Zn 3 B 4 O 4 .Mn, Zn 3 (PO 4 ) 2 .Mn, Cd- SO 4 :Mn, Cd 2 P 2 O 7  :Mn, BaTiO 3 , Zn 3 V 2 O 8 , Ca 3 - (PO 4 ) 2 :Ce, Ca 2 MgSi 2 O 7  :Ce and BaSO 4 :Pb.
Patent GB-778733-A (GB)
Title: Improvements in means for generating and controlling random effects
Inventor: ROSE LESLIE
IPC: G07C15/00
Filed: 1954-12-11
Abstract: <FORM:0778733/IV(a)/1> The jets 25 of a spinning frame are supplied with viscose continuously from a line 21 by pumps 23 and intermittently, to produce slubs, from a line 27 by pumps 28 which are operated by randomly-produced impulses.
Patent GB-1525013-A (GB)
Title: Method for cleansing vinyl chloride polymerisation and copolymerisation reactors
IPC: C08F6/06
Filed: 1975-09-01
Abstract: 1525013 Cleansing polymerization reactors; recovering polymer SOC ITALIANA RESINE SIR SpA 1 Sept 1975 [10 Sept 1974] 36004/75 Headings C3P and C3L A process for cleansing reactors used for polymerizing and copolymerizing vinyl chloride and recovering polymer therefrom in filament form comprises dissolving the polymer incrustations and residual water formed during the polymerization and copolymerization of vinyl chloride on the inner walls of the reactor with a substituted amide which is liquid at normal temperatures and pressures and which does not form an azeotrope with water, e.g. dimethylformamide, dimethylacetamide or tetramethylurea by contacting the incrustations with the solvent at above 60‹ C. until the content of polymer in the resulting solution is not more than 7% by wt., concentrating the mixture to a concentration of 10-30 wt. per cent, subjecting the vapourized mixture to fractional distillations to recover and recycle solvent and extruding the residual solution in the form of threads into an aqueous coagulating bath and then recovering the thus formed polymer threads. Tin mercaptide may be added as a stabilizer.
Patent GB-490197-A (GB)
Title: Improved spectacles
IPC: B29D12/02
Filed: 1937-12-30
Abstract: 490,197. Spectacles. SIDEBOTTOM, J. P. Dec. 30, 1937, No. 36052. [Class 97 (i)] The front of a pair of spectacles, comprising the lenses a, b, bridge c and hinge lugs d, e, is made all in one piece from moulded artificial material such as that known by the Registered Trade Mark " Perspex."
Patent GB-368705-A (GB)
Title: Improvement in television scanning system
IPC: H04N5/228
Filed: 1930-11-29
Abstract: 368,705. Television ; photo-electric cells. COMMUNICATION PATENTS, Inc., 60, Broadway, New York, U.S.A. Nov. 29, 1930, No. 36067. Convention date, July 7. [Classes 39 (i), 40 (iii), and 40 (v).] An image I, Fig. 1, of an object 0, is projected on a photo-electric cathode 5, an anode 6 receiving the emitted electrons, and the cathode is simultaneously scanned by a light beam from a device 23. The cathode 5 and anode 6 form a photo-electric cell having a non-linear characteristic so that the change of current through the cell due to the scanning light spot depends upon the intensity of the image I. In a practical embodiment, the photo-electric cell 41, Fig. 2, has a curved translucent cathode 46 and two anodes 44, 45. The object O is projected on one side of the cathode by lenses 43, while a scanning light beam from a device 42 is projected on the other side of the cathode 46 by lenses 44a. The cathode is curved so that the intensity of the scanning light spot shall remain constant for all positions on the cathode. The scanning device 42 preferably comprises an electric arc moving over an electrode system 47 under the action of a magnetic field, and is energized from a generator 75 and cooled by a fluid stream through a jacket 54 lagged at 56. The currents through the cell 41 may be amplified by a valve with a double anode 62, 64. The input circuits include variable inductances 61, 63 while the output circuit contains a transformer 67 feeding an amplifier 70, in series with a variable inductance 71. The inductances 61, 63, 71 may produce regeneration. The output of the amplifier 70 is connected to the leads 76 to the scanning device to produce regeneration. The picture and scanning currents may be filtered at 77 and transmitted. Specifications 358,183, 358,920, 360,470, 360,850, and 360,941 are referred to.