baber/WOPTO huggingface dataset:
Patent GB-1400513-A (GB)
Title: Inductive circuit systems
Inventor: SCHIRMAN ANANIE
IPC: H02H9/00
Filed: 1972-10-25
Abstract: 1400513 Power factor improvement ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE CHARLEROI 25 Oct 1972 [25 Oct 1971] 49129/72 Heading H2H An A.C. system including means for improving the power factor thereof comprises a saturable reactor, the control winding of which is fed with direct current the value of which is determined by a regulated supplied with signals dependent upon the reactive power of the system, a freewheeling diode being connected across the control winding to eliminate the effects of transient current surges in the system. A three phase A.C. system RST is fed from an A.C. source 2 by means of a switch 3, a number of consumer loads being supplied by way of switches 8, the 5th; 7th and 11th harmonics being compensated by capacitor-reactor networks 15, 16, 17 respectively connected to the system by switches 9, 10. Current and voltage values in the system are derived by transformers 11, 12 and fed to a regulator 13 wherein are calculated signals 14 representing the system power factor. These signals are used to control the firing instants of thyristors 21 of a rectifying bridge supplied from the system by way of a transformer 22, the D.C. output of which feeds a control coil 20 of a saturable reactor, the A.C. windings 19 of which are connected to the system RST by the switches 9, 10. A freewheeling diode 23, in series with an inductor 29, is connected across the control coil 20 to eliminate the effects of switching transients in the system when the switch 3 is closed. A contact 27 of a relay 26 is placed in series with the diode 23, the relay operating with a time delay to open the circuit of the diode 23 whereby it is disconnected from the control coil 20 after the switching transient has passed. Current transformer 18 are associated with the harmonic filter circuits 15, 16, 17 whereby any imbalance in the circuits can be detected. An inductor 30 may be provided to protect the thyristors 21.
Patent GB-1294580-A (GB)
Title: New medicaments derived from nucleic acids, processes for their preparation and their use
Inventor: EBEL JEAN PIERRE
IPC: C07H21/00
Filed: 1970-10-21
Abstract: 1294580 Compositions comprising nucleic acids PECHINEY UGINE KUHLMANN 21 Oct 1970 [21 Oct 1969] 49882/70 Heading A5B [Also in Division C3] Pharmaceutical compositions comprise modafied nucleic acids of human origin (see Division C3). In an example a methylated RNA/DNA mixture is included in an ointment. The compositions are active as interferon inducers, conferring resistance to viral infections.
Patent GB-1268633-A (GB)
Title: Improvements in or relating to gaskets
Inventor: FORD ROBERT
IPC: F16L23/18
Filed: 1968-04-05
Abstract: 1,268,633. Joint-making packing. R. FORD. 3 April, 1969 [5 April, 1968; 22 Oct., 1968], Nos. 16614/68 and 50100/68. Heading F2B. A gasket comprises an apertured resilient metal plate 2 having on each side ductile metal rings 4, 6, 8 and 10 concentric with the aperture, the rings on opposite sides of the plate being in radially staggered relationship whereby, in use, when the gasket is compressed between two joint members, e.g. pipe flanges 12, Fig. 4, the plate is resiliently deformed by the rings. The rings may be held to the plate by an adhesive, e.g. nitrile or epoxy resin adhesive. The plate may be of stainless steel and the rings of copper or aluminium.
Patent GB-1038200-A (GB)
Title: Improvements in or relating to solid state display devices
Inventor: FRANKS JOSEPH
IPC: H01L31/153
Filed: 1963-12-24
Abstract: A solid-state display device comprises a photo-conductive and an electroluminescent layer between two electrodes, the photoconductor being a material which under suitable conditions of voltage bias will be switched to a conductive state by incident radiation, and will be sustained in the conductive state by the applied voltage in the absence of radiation. The device may comprise an electrode of N-type Ga As, a photo-conductive layer of Ga As, a layer of P-type Ga As acting as a hole injecting electrode, a layer of N-type Ga P, and a layer of P-type Ga P, the interface of these last two layers acting as a light source, and the last layer acting as an electrode.  Used with a D.C. bias, the device is bi-stable; used with an A.C. bias, the intensity of output light is related to the intensity of the input radiation, since the higher the intensity of the input radiation, the lower the bias voltage required to trigger the photo-condutor, and hence the longer the time during which light is emitted during each halfcycle. Combined with a lens, the device may form a portable infra-red viewer.
Patent GB-1392608-A (GB)
Title: Floaters or skim bars for a glass melting furnace
IPC: B32B15/04
Filed: 1971-11-03
Abstract: 1392608 Floater or skim bar for glass furnace PILKINGTON BROS Ltd and H F FRIEND 16 Oct 1972 [3 Nov 1971] 51173/71 Heading C1M A skim bar or floater 10 for use in a glass melting furnace comprises a body 11 of non- metallic refractory material (e.g. alumina or fused silica) at least partially encased with a refractory metal 15 which is resistant to molten glass, and means for retaining a static pool of molten glass 18 on an upwardly-facing surface 19 of the metal. The refractory metal, which may be platinum or a platinum alloy with rhodium or iridium, is protected against oxidation by the molten glass. The metal layer is preferably no more than 1 mm. thick. The static pool of glass 18 may be retained on the surface 19 by peripheral lips 16, 17 of refractory metal, which lips may be discontinuous, by a dished surface shape, or by clinging to a mesh of refractory metal. The body 10 preferably is rendered buoyant in molten glass, e.g. by comprising cavities 12.
Patent GB-1281164-A (GB)
Title: Improvements in and relating to ferrous alloys
Inventor: FARMER EDWIN BRUCE
IPC: C22C33/02
Filed: 1968-10-29
Abstract: 1281164 Sintered ferrous alloys BRICO ENG Ltd 13 Oct 1969 [29 Oct 1968] 51205/68 Headings C7A and C7D A sintered alloy comprises:- Co 8-12% Mo 2-10% Ni 10-17% C 0-0À2% Cr 0-5% Cu 0-5% Sn 0-5% and Ti 0-1À6% the balance apart from impurities, being Fe. The powder may be mixed with a die lubricant (e.g. 1% zinc stearate) compacted (e.g. at 31-95 kg/mm<SP>2</SP> ) and sintered in a protective atmosphere at 1100-1300‹C. (e.g. for 3-5 hours) or sintered for a shorter time (e. g. 1-2 hours) cooled to room temperature, repressed (e. g. at up to 95 hg/mm<SP>2</SP> ) and resintered at 1100-1300‹C. (e. g. for 2-4 hours). The compacts may then be annealed at 730-900‹C. air cooled and aged at 470-620‹C.
Patent GB-1262036-A (GB)
Title: Recording apparatus
Inventor: PROCHNOW RUDOLF
IPC: G11B5/53
Filed: 1970-10-29
Abstract: 1,262,036. Recording and playback. FERNSEH G.m.b.H. 29 Oct., 1970 [26 Nov., 1969], No. 51458/70. Heading G5R. The motor-driven rotary magnetic heads of a video tape recorder are brought to a desired operating temperature by heating means, e.g. semi-conductor heating elements in thermally conductive contact with the casing of the motor. The operating temperature may be adjustable and may be maintained at the desired value by an automatic regulator.
Patent GB-1324543-A (GB)
Title: Electrophotographic composition and material
IPC: G03G5/06
Filed: 1970-11-02
Abstract: 1324543 Photoconductive compositions FUJI PHOTO FILM CO Ltd 2 Nov 1970 [4 Nov 1969] 51950/70 Heading H1K [Also in Division C4] Photoconductive compositions comprise an insulating resinous binder and a photoconductive dye of formula wherein R 1  is H, halogen, alkyl, alkoxy, carbonyl alkoxy or nitro and R 2  is H, halogen, OH, alkoxy, amino, mono- or di-alkyl amino or nitro and is duplicable at the 2 and 4 position; and said alkyl groups or alkyl portions of said groups having 1-4 C. Specified binders are styrene / butadiene copolymer, polystyrene, chlorinated rubber, polyvinyl chloride, vinyl chloride/vinyl acetate copolymer, polyvinylidene chloride, nitrocellulose, polyvinyl acetate, polyvinyl acetal, polyvinyl ether, silicone resin, acrylic resin methacrylic resin, phenolic resin, alkyd resin and urea-formaldehyde resin. The composition may include a plasticizer, e.g. bisphenyl chloride, chlorinated paraffin, a phosphate or a phthalate, and a sensitizer, e.g. tetracyano ethylene, tetracyanoquino dimethane, chloranil, bromanil, naphthoquinone, anthraquinone, methylene blue, crystal violet or malachite green. The composition is coated on a metal, paper or plastic conductive support.
Patent GB-1496612-A (GB)
Title: Cargo carrying vessel having at least one cargo carrying deck
IPC: B63B43/06
Filed: 1975-12-19
Abstract: 1496612 Cargo vessel buoyancy arrangement GOTAVERKEN AB 19 Dec 1975 [27 Dec 1974] 52059/75 Heading B7M A cargo vessel or pontoon 11 has at least one cargo carrying deck 10 suitable for cargo handling in a horizontal plane relative to an embankment or quay 18. The vessel has trimming tanks 12 at least in a part which, in use, faces the quay to provide the vessel, when it is brought to the quay, with a temporary excess of buoyancy determined by the cargo 17 to be handled. Positioning elements, which in the embodiment shown are in the form of counterweights 20 winched by wires 21, maintain the cargo carrying deck level with the embankment.
Patent GB-1096435-A (GB)
Title: New organic antimony compounds and polyurethanes derived therefrom
IPC: C08J9/00
Filed: 1964-12-22
Abstract: Epoxide derivatives of polyether polyols are reacted with Sb Cl3 or Sb Br3 to give antimony (III) esters containing at least 3 isocyanate reactive groups.  The antimionite esters so prepared together with other antimonite esters (see Division C2) all of which have the general formula (RV)m Sb Xn wherein X is chlorine or bromine, V is oxygen or sulphur, R is an alkyl group (in which the carbon chain may be interrupted by oxygen atoms) which may contain epoxy and/or hydroxyl groups and which may be substituted by aliphatic, aromatic or heterocyclic (in which O, S and/or N are the hetero atoms) groups; chlorine or bromine atoms; ketonic, aldehydic, carboxylic, acetal, amino, amido, ureido or ureylene groups; or -(RY)m- 1 Sb Xn groups; m is 1, 2 or 3, n is ), 1 or 2 and m + n is 3; which compounds contain at least 3 isocyanate reactive groups, at least one of which is an <FORM:1096435/C3/1> group and which yield an hydrolysis of the antimony group or groups a polyether polyol (or polythiol) having 3-10-YH groups and a -YH number of 200-750 are reacted with organic polyisocyanates in the presence of a blowing agent such as a fluorine and/or chlorine substituted hydrocarbon, and possibly in the presence of another polyol and/or emulsifiers to give fire resistant foams.ALSO:Polyethers of the formula (RY)mSbXn wherein m is 1, 2 or 3, n is 0, 1 or 2, m + n is 3, X is chlorine or bromine, Y is oxygen or sulphur, and R is an alkyl group (in which the carbon chain may be interrupted by one or more oxygen atoms) which may contain epoxy and/or hydroxyl groups and which may be substituted by aliphatic, aromatic or heterocyclic (in which oxygen, sulphur and/or nitrogen are the hetero atoms) groups; chlorine or bromine atoms; ketonic, aldehydic, carboxylic, acetal, amino, amido, ureido or ureylene groups or groups of the formula -(RY)m- 1SbXn; which compounds contain at least 3 isocyanate reactive groups at least one of which is an <FORM:1096435/C2/1> group and which yield on hydrolysis of the antimony group or groups a polyether polyol (or polythiol) having 3-10-YH groups and a -YH number of 200-750 are made by reacting SbCl3 or SbBr3 with a polyether polyol which is in the form of an alkali metal derivative or an epoxide hydrolysable to the polyol or by transesterifying the polyol with a lower alkyl antimonate.
Patent GB-524666-A (GB)
IPC: D01H5/26
Abstract: 524,666. Drawing-mechanism for spinning frames &c. SACO-LOWELL SHOPS. Feb. 6, 1939, No. 3821. Convention date, June 13, 1938. [Class 120 (ii)] In drawing-mechanism for cotton wherein the rear of two pairs of drawing-elements comprises a belt 10 passing round a lower roller 5 and a guide 12 situate forwardly thereof, so that a considerable length of fibre is gripped, the belt co-operates with an upper rear roller 4 so that the sliver is gripped between this roller and the belt from a point adjacent the forward portion of the guide to a point in or approximately in a plane containing the axes of the upper and lower rear rollers. The distance between the nip of the front rollers and the nip d is longer than the longest fibre, say one and a half inches, and the point g, where the sliver is released from the belt, is as close to the nip of the front rollers as possible, say between one half and five eighths of an inch. The contact of the roller 4 and the belt is at least 30 degrees, and as shown is substantially 60 degrees. The belt is tensioned by a pulley 13. The guide 18 for the roller 4 is inclined and is adjustable, and pressure is applied in a line a, b through the axes of the rollers. The weight 118 is connected through a lever and link to a floating lever 24, which is pivoted to a stirrup 25 for the roller 4 at a point 28 in the line a, b, and to resilient stirrup 26 bearing upon a saddle 27 which embraces the gudgeon of the top feed roller 6 and rests on the gudgeon of the top front roller. The pivot 30 of the stirrup 26 is preferably in front of a line through the point of application 29 to the saddle 27 and parallel to the line of the front and feed roller axes so that the roller 6 is pressed against its forward guide surface. Specification 373,193 is referred to.
Patent GB-1531870-A (GB)
Title: Diapers
IPC: A61F13/15
Filed: 1976-12-17
Abstract: 1531870 Infant diapers COLGATE-PALMOLIVE CO 17 Dec 1976 [29 Dec 1975] 52790/76 Heading A5R A box-pleated diaper having a waterproof back sheet 20 is provided with sealing strips 34, 36 of waterproof material separate from the back sheet secured on the hydrophobic water permeable face sheet 24 parallel with and adjacent the longitudinal side edges. The sealing strips may be formed from side portions of the back sheet which are folded over and secured to the face sheet and then severed from the back sheet.
Patent GB-1507860-A (GB)
Title: Electrical switch assembly
IPC: H01H19/62
Filed: 1976-12-22
Abstract: 1507860 Actuation of switches; conjoint operation of switches UNITED GAS INDUSTRIES Ltd 22 Dec 1976 [30 Dec 1975] 53082/75 Heading H1N At least two side-by-side microswitches 18, 19 are operated by a leaf spring 16 fixed at one end 17 and flexible by a cam 12 acting on a cam follower 15 carried by the spring 16. The cam 12 is rotated by a motor of a prepayment timing mechanism for a television set, the motor being stopped upon actuation of the microswitches 18, 19. The pressure applied to the operating buttons of the microswitches 18, 19 may be varied by adjusting the position of the cam follower 15.
Patent GB-1141640-A (GB)
Title: Improvements relating to electric timing circuits
Inventor: LEGG MALCOLM
IPC: H03K17/28
Filed: 1965-04-23
Abstract: 1,141,640. Time delay switching circuits. A. REYROLLE & CO. Ltd. 22 April, 1966 [23 April, 1965], No. 53160/67. Divided out of 1,124,492. Heading H3T. [Also in Division H2] The integrating capacitor 20 of a timing circuit is given a small initial charge by connecting the charging terminal of the capacitor through a diode 41 to the junction of a potentiometer 42, 43 and a further diode 44 is connected in series with resistor 43 to compensate for changes in voltage across diode 41 with temperature. The initial charge removes variations in the timing period due to the difficulties of completely discharging the capacitor caused by dielectric absorption and other reasons. In the protective system shown, the operation of reed relay 10 due to overload causes a contact 11 to be made so that the initial charge is applied and progressive charging commences. Charging continues until a complementary type crosscoupled circuit 23 is thereby changed to the conducting state to render transistor 27 conducting and operate relay 30. Contact 32 of this relay operates a relay 34 provided with a holding circuit 37 and also operates the tripping coil 36. A third diode 45 compensates for the voltage drop across the emitter-base diode of transistor 22.
Patent GB-1370939-A (GB)
Title: Apparatus for heat treating webs of material
IPC: D06B11/00
Filed: 1971-11-16
Abstract: 1370939 Heat treating webs ARTOS GES FUR INDUSTRIELLE FORSCHUNG UND ENTWICKLUNG CA MEIER-WINDHORST 16 Nov 1971 [19 Nov 1970] 53216/71 Heading D1L [Also in Division F4] Apparatus for heat treating or drying webs of material comprises a plurality of nozzle bodies 11, 12 and 13 [Fig. 2] having end walls 11A, 12A and 13A with treatment medium outlet apertures facing and disposed below the path of travel of the web, the nozzle bodies being arranged end-to-end and side-by-side in a plane parallel to the path of web travel and being spaced from each other to form exhaust slots 16 therebetween which extend in the direction of web travel [arrow in Fig. 2]. The outlet apertures may be of circular cross-section (nozzle bodies 11 and 13) having a diameter of 3-5mm, or slots (nozzle bodies 12) extending in the direction of web travel, the total cross-sectional area of the apertures preferably being 3-5 times smaller than the total cross-sectional area of the exhaust slots 16. Closable slits 18 may be provided extending transversely of the web between adjacent ends of the nozzle bodies, these slits allowing passage of only a negligible quantity of exhaust medium. As illustrated in Fig. 1 the exhaust slots 16 preferably communicate via passages 19 with transversely extending exhaust collecting channels 17. An arrangement of nozzle bodies may also be provided above the web, this arrangement being similar to that disposed below (Fig. 1) or of a conventional nature (Fig. 3, not shown).
Patent GB-1385060-A (GB)
Title: Preparation of non-ionic hydroxylic surface-active agents
IPC: C09K23/00
Filed: 1972-11-17
Abstract: 1385060 Polyglyceryl ethers L'OREAL 17 Nov 1972 [18 Nov 1971] 53313/72 Heading C2C [Also in Divisions A5 and C5] Surfactants are made by reacting, in the presence of an anhydrous Lewis acid catalyst, 1-10 mols. glycidol with at least one alcohol R-(X) m -(CH 2 ) x -(Y) n -CH 2 OH where X is -O-, -CH 2 -, -COO- or -OCH 2 CH- (OH)CH 2 O-; Y is -CHOH- or -CH(CH 2 )-; m, x and n are independently 0 or 1 and R is hydrocarbyl.  The surfactants find use in cosmetic, detergent and hair dyeing compositions.
Patent GB-1495737-A (GB)
Title: Method of concentrating potassium or sodium hydroxide liquids and an apparatus for carrying out the method
IPC: B01D1/06
Filed: 1974-12-12
Abstract: 1495737 Concentrating sodium or potassium hydroxide solutions ESCHER WYSS Ltd 12 Dec 1974 [14 Dec 1973] 53822/74 Heading BIB  Sodium or potassium hydroxide solution enters the upper chamber 12 of evaporator 1 through conduit 13 and rises in the zone 14 before overflowing into tube extensions 1b of the main sections of the tubes 1a which are situated in the heating compartment 11 defined by plates 9 and 10. The extensions 1b are at least 10% in length of the tubes la and ensure preheating and some pre-evaporation of the solution. The solution falls as a film down the tubes and the vapours are discharged through conduit 2 to a condenser while the concentrated solution is collected at the bottom. A pre-heater 6 is shown for the preliminary heating of the solution by steam before being pumped into the evaporator.
Patent GB-1322346-A (GB)
Title: Document container in combination with a rider
IPC: B42F21/00
Filed: 1970-11-12
Abstract: 1322346 Index tabs NEHER AG 12 Nov 1970 [26 Jan 1970] 53831/70 Heading B6E An index tab 3 made of transparent plastics material and having a magnifying lens body 4 and resilient shanks 7 which terminate in beads 9 is mounted with a snap-on action along a longitudinal edge portion 2 of a side wall 1 of a document container, the edge portion 2 tapering towards the free edge of the edge portion 2. Alternatively, the edge portion may be provided with grooves (11, Fig. 3) in which may be located the beads 9.
Patent GB-1406250-A (GB)
Title: Road-making material
IPC: C04B18/04
Filed: 1971-11-23
Abstract: 1406250 Roadstone REDLAND TECHNOLOGY Ltd 22 Nov 1972 53856/72 Divided out of 54289/71 Heading C1J [Also in Division C3] A road making material comprises particles of a fired mixture of red mud and clay. Preferably the clay contains 10-30 wt. per cent Al 2 O 3  and 50-80% SiO 2 . The green mix may be shaped before firing at 900-1400‹ C. or fired then ground to the desired size. A binder, e.g. long chain polyamide, may be incorporated in the green mix.
Patent GB-1482768-A (GB)
Title: Friction clutches
IPC: F16D13/58
Filed: 1975-12-18
Abstract: 1482768 Friction clutches AUTOMOTIVE PRODUCTS Ltd 18 Dec 1975 [23 Dec 1974] 55447/74 Heading F2C [Also in Division B3] A clutch cover is formed from an initially flat strip of sheet metal (Fig. 1) which is bent to a cylindrical shape, its ends 17 and 18 welded together and tapered portions 15 extend radially inwardly by folding along a line 12, to support a diaphragm spring 22. A flange 114, formed by folding a portion 14 of the strip along line 13, has bolts passed through it to secure the cover to a flywheel 24. In the embodiment shown portions 16 are bent to support the spring 22 between rings 19 and 21. In an alternative embodiment (Fig. 6, not shown) the spring 22 is supported on rivets and the ring 19 is replaced by ribs formed on the cover. An annular plate 20 is welded (as shown) or riveted to the portions 15 to strengthen them. Apertures 37 are provided through which lugs of a presser plate 31 extend for the attachment of straps interconnecting the presser plate and the flywheel.
Patent GB-1409938-A (GB)
Title: Process for producing 4-aminomethyl cyclohexane carboxylic acid-1
IPC: C07C67/00
Filed: 1973-11-29
Abstract: 1409938 4-Aminomethyl cyclohexane-1- carboxylic acid ASAHI KASEI KOGYO KK 29 Nov 1973 [29 Nov 1972] 55468/73 Heading C2C 4 - Aminomethyl cyclohexane - 1 - carboxylic acid is prepared by reacting a C 1 -C 6  alkyl ester of p-cyanobenzoic acid, at an elevated temperature in a hydrogen atmosphere in the presence of a nickel catalyst in an aqueous medium containing ammonia, with at least one alkali metal or alkaline earth metal hydroxide, and from 0À1 to 50 mol per mol of p-cyanobenzoic acid of at least one alcohol or aliphatic or saturated cyclic ether. The amount of hydrogen used is at least sufficient to hydrogenate the cyano group and the benzene nucleus.