baber/WOPTO huggingface dataset:
Patent GB-1248468-A (GB)
Title: Improvements in or relating to heat hardenable coating materials
IPC: C09D133/06
Filed: 1968-11-15
Abstract: 1,248,468. Heat-hardened coatings. CHEMISCHE WERKE ALBERT. 15 Nov., 1968 [18 Nov., 1967], No. 54403/68. Heading B2E. [Also in Division C3] Heat-hardenable coatings are obtained from compositions comprise (I) a reaction product of (1) a copolymer containing free hydroxy groups and derived from (a) an ester of an α, #-olefinically unsaturated mono- and/or di-carboxylic acid and a saturated or monoolefinically unsaturated monohydric alcohol, (b) a monoester of a polyhydric alcohol with an α, #-olefinically unsaturated monocarboxylic acid or a mono-or di-ester of a polyhydric alcohol with an α, #-olefinically unsaturated dicarboxylic acid and (c) another monoolefinically unsaturated comonomer with (2) at least one anhydride of a polycarboxylic acid, which reaction product has an acid number of 5-200; (II) an amino resin and/or epoxy resin; and (III) an inert organic solvent which is inert to anhydrides. Monomer (a) is suitably an alkanol, allyl alcohol or cycloaliphatic alcohol ester of acrylic, methacrylic, maleic or fumaric acid. Monomer (b) may be derived from the same acids as mentioned for (a) and from alkylene glycols, trimethylolpropane or pentaerythritol. Specified comonomers (c) are styrene, vinyl toluene, butadiene, acrylonitrile, acrylic or methacrylic acid, maleic acid, vinyl ethers, vinyl esters, vinyl halides, and allyl alcohol, esters and ethers. The anhydride component (2) is suitably that of a saurated or α, #-olefinically unsaturated aliphatic or cycloaliphatic dicarboxylic or of an aromatic polycarboxylic acid having up to 16 carbon atoms. The reaction between copolymer (1) and anhydride (2) can be effected in the solvent (III) optionally in the presence of a catalyst, e.g. p-toluene sulphonic acid or a Lewis acid; suitable solvents include petrol fractions, cyclohexane, benzene, toluene, xylene, ethyl or butyl acetate, butyl isobutyrate, dihexyl ether, cyclohexanone and methyl ethyl (or isobutyl) ketone. Resin (II) may be, for example, a condensation product of formaldehyde with melamine, urea, ammeline, guanidine or dicyandiamide, or an etherification product thereof; the amount of resin is generally from 5-50% by weight of the amount of the copolymer reaction product. The compositions may optionally include other components such as phenol, alkyd, acrylic or coumarone resins, hardening catalysts, and fillers or pigments, e.g. barium sulphate, zinc oxide, titanium dioxide, zinc sulphide and phthalocyanine blue or red. The compositions can be applied to a substrate by coating, immersing, spraying or flowing and the applied composition heathardened at temperatures above 100‹C., e.g. in the range 110‹-220‹C. Steel sheet is exemplified as a substrate.
Patent GB-1416651-A (GB)
Title: Conduit junction for mixing two fluid flows
IPC: C21B9/10
Filed: 1973-11-19
Abstract: 1416651 Mixing in conduits HOOGOVENS IJMUIDEN BV 19 Nov 1973 [20 Nov 1972] 54627/73 Heading B1C Apparatus for mixing two fluids and especially two gases at widely differing temperatures comprises a conduit 1 for the hotter gas, and a conduit 2 for the cooler gas supplying a ring main 3 at least partly surrounding the conduit 1 and convected thereto by a plurality of pipe bends 4 which extend partly axially and partly radially relative to the conduit 1. The apparatus has a refractory lining 5, 6, 7. The conduits may be of rectangular cross-section; there may be twelve pipe bends extending axially about three times the diameter of the ring main; and their total cross-section is preferably not more than 15% of that of the conduit 1 which is preferably four to eight times that of conduit 2.
Patent GB-1198509-A (GB)
Title: Photographic Silver Halide Emulsions
Inventor: WOOD GEORGE FU LIANG
IPC: G03C1/09
Filed: 1967-12-01
Abstract: 1,198,509. Photographic silver halide emulsion. EASTMAN KODAK CO. Dec.1, 1967 [Dec.2, 1966], No.54736/67. Heading G2C. A photographic silver halide developing-out emulsion is made by precipitating and physically ripening the silver halide grains in an aqueous peptiser such as gelatine in the presence of a rhodium salt and a thioether silver halide solvent. The emulsion may then be chemically and optically sensitized. Rhodium salts specified are ammonium chlororhodate and rhodium mono-, di-and trichlorides. Thioether silver halide solvents are those described in Specifications 1, 059, 782, 1,166, 074 and 1,166,075 such as 1:8 dihydroxy-3:6-dithiaoctane. The emulsion may be washed after the physical ripening step. A divalent metal salt such as zinc nitrate or cadmium chloride may be added to the emulsion before coating.
Patent GB-1405994-A (GB)
Title: Overheat preventing device for motor vehicle engine
IPC: F01P7/08
Filed: 1973-11-26
Abstract: 1405994 Overheat preventing device for engines NISSAN MOTOR CO Ltd 26 Nov 1973 [5 Dec 1972] 54742/73 Heading F1C An overheat preventing device for a motor vehicle engine comprises a fan 4 directly coupled via a pulley 14 and belt 15 to a second pulley 13, which in turn is coupled via an electromagnetic clutch 11 to the shaft 10a of an electric motor 10. The pulley 14 is also coupled via an over-running fluid clutch 9 to a shaft 19 which is driven by the vehicle engine by a pulley and belt 5, 6. The electromagnetic clutch 11 and the electric motor 10 are energized by a battery 17 either through switch 12 and the ignition switch 16 or through switches 22, 21, 23, the switches 16 and 21 being connected to operate in opposite senses. The control switch 12 is closed when the temperature of the radiator or the temperature or pressure of a condenser increases to a predetermined level, or the vehicle speed drops below a predertermined level. The switch 22 is a delay switch which opens after a predetermined interval, and the switch 23 closes when the ambient temperature is greater than a predetermined value . Operation When the vehicle engine is running normally it drives the fan 4 through the over-running clutch 9. The pulley 14 also drives the pulley 13 which will be free to rotate on the motor shaft 10a if the clutch 11 is disengaged, i.e. if the temperature in the radiator or pressure or temperature in the condenser is below a predetermined level or the vehicle speed is above a predetermined value so that switch 12 is open. Should the vehicle slow down and/or the temperature or pressure increase, the control switch 12 closes, the clutch 11 is engaged and the motor is able to drive the fan faster than the engine. When the engine is switched off (switch 16 opening, switch 21 closing) should the ambient temperature exceed a predetermined value, switch 23 closes to drive the motor 10 and fan 4 until the delay switch 22 opens after a predetermined interval. The clutch 11 may alternatively be a roller or spring type Figs. 1 and 3 respectively, (not shown).
Patent GB-1090580-A (GB)
Title: Fiber-forming acrylonitrile polymers
IPC: D01F6/18
Filed: 1965-12-30
Abstract: A fibre-forming copolymer consists of 99-50% by weight of acrylonitrile and 1-50% by weight of vinyl bromide.  The fibre-forming composition may also contain another polymer, e.g. an acrylonitrile-vinyl acetate copolymer. The copolymer of the invention may be made by a redox process and is soluble in dimethyl acetamide.
Patent GB-1320178-A (GB)
Title: Detergent compositions
IPC: C07D307/24
Filed: 1970-11-23
Abstract: 1320178 Builder detergent compositions UNILEVER Ltd 23 Nov 1970 [24 Nov 1969] 55517/70 Heading C5D A detergent composition comprises (A) a water-soluble organic detergent active compound and (B) a detergency builder which is a water-soluble or -dispersible alkali metal, ammonium or substituted ammonium salt of furan or tetrahydrofuran tetracarboxylic acid, the ratio by wt. of (A) to (B) being from 20 : 1 to 1 : 50. Compounds (A) may be anionic, non- ionic, zwitterionic or amphoteric detergents. The compositions contain 25 to 45% of (A) (other than the nonionic detergent), and 25 to 75% of (B). Optional ingredients are (a) inorganic or organic builders (e.g. polyphosphates, nitrilotriacetates and sodium polyacrylate), (b) buffers, e.g. sodium silicate and (c) conventional additives.
Patent GB-1457504-A (GB)
Title: Manufacture of electric motors production of articles with a marbled surface electric switch operating means
IPC: B22D19/00
Filed: 1972-12-01
Abstract: 1457504 Casting composite articles; making electrical coils F D LOWEN 30 Nov 1973 [1 Dec 1972] 55667/72 Headings B3F and B3A [Also in Division H2] A shaded pole stator of an electric motor is provided with shading coils or loops (c) by casting or moulding the coils or loops directly on to the stator. The latter may be provided with holes or slots (A and B) into which the cast or moulded material enters whereby the coils or loops become locked firmly in position. The coils or loops are formed, with integral projections, (P) by means of which end shields, internal oiling arrangements, coil insulations, or air baffles may be secured to the coils or loops, e.g. an apertured flange on one of the members may be fitted over the said projections and secured by peening or punching over. The coils or loops may be formed of aluminium or metallized or sintered metal impregnated plastics material.
Patent GB-559362-A (GB)
IPC: C07C43/315
Abstract: 559,362. Extracting essential oils; dewaxing oils. CARBIDE & CARBON CHEMICALS CORPORATION. Feb. 17, 1942, Nos. 2097 and 2098. Convention date, March 18, 1941. [Class 91] [Also in Group IV] Glyoxal tetra-acetals which may be used for the extraction of essential oils or for removing wax from hydrocarbons, are produced by reacting glyoxal with an alcohol or a mono-ether of a glycol and removing water continuously. The alcohol may be aliphatic or aromatic and the glycol ether may be an ether of an aliphatic or aromatic alcohol or of a phenol, a number of these being listed. The glyoxal may be used in the form of. a polymer. Examples describe the production O tetra-acetals from 2-ethyl hexanol, butanol, ethylene, chlorhydrin, methanol, glycol monomethyl ether, and glycol monobutyl ether.
Patent GB-1451816-A (GB)
Title: Systems for monitoring the level of a received alternating- current signal and for indicating whether said received signal has a particular one of a plurality of predetermined frequencies
IPC: H04L27/26
Filed: 1973-12-04
Abstract: 1451816 Measuring voltage amplitude SIEMENS AG 4 Dec 1973 [29 Dec 1972] 56110/73 Heading G1U [Also in Division H3] In a system for monitoring the level of a received A.C. signal and for indicating whether the received signal has a particular one of predetermined frequencies, a received signal is applied to tuned circuits 41-44, each resonant at one of the frequencies, the outputs of which are rectified at 51-54 to provide D.C. voltages which are applied to a comparator circuit 61-63 arranged to produce an output signal indicating when the voltage provided by the tuned circuit resonant at the particular one of the frequencies has a higher magnitude than all the other ones of the voltages and the level of the received signal is determined by an independent level analyzer circuit 3 which is frequency independent within the band occupied by the predetermined frequencies. Fig. 1 shows part of a device for switching a faulty transmission channel to a standby channel. The received A.C. signal can be a pilot signal and the voltage comparator can be formed by Schmitt trigger circuits 61-63 which can be shown in Fig. 2 and have control inputs S which determine the response threshold. The Schmitt trigger circuit only responds when the input voltage Ue is higher than the control voltage Us so that the D.C. output voltage from 52-54 having the higher voltage than that from 51 -54 provides an output from the respective Schmitt trigger 61-63. The presence of the frequency fl is not required to initiate any signal production so that a Schmitt trigger circuit for the frequency f1 is not provided. The presence of the frequency fl can be detected by the fact that none of the outputs a1 to a3 are producing a signal. The pilot voltage is rectified at 3 which is used for mean value rectification to provide a frequency independent D.C. voltage U=. An alternative Schmitt trigger circuit is disclosed in the form of a voltage discriminator Fig. 3 (not shown) which includes an operational amplifier (16) having feedback to its positive input from its output provided by resistors (14, 15, 17, 18). The resistors (14, 15) determine the response threshold. As long as the diodes such as 611, 613, 614 connected to the negative input of the operational amplifier (16) are blocked the negative input is at a medium potential. The voltage discriminator does not respond if the control voltage applied via the diodes is higher than the D.C. voltage produced by the rectifier 52.
Patent GB-1399288-A (GB)
Title: System for recording redundant holograms
IPC: G03H1/00
Filed: 1972-12-08
Abstract: 1399288 Redundant hologram RCA CORPORATION 8 Dec 1972 [9 Dec 1971] 56651/72 Heading G2J In the system shown the ratio d/a is at least 30 where d is the (repetitive) distance spacing pinlinks of maximum dimension a. By this system, noise is reduced compared to that in C system using a ground glass diffuser to obtain redundancy. Choice of s p and q to improve the results is discussed.
Patent GB-1288277-A (GB)
IPC: D21F9/00
Filed: 1969-11-19
Abstract: 1288277 Paper-making apparatus BELOIT CORP 19 Nov 1969 [3 Feb 1969] 56701/69 Heading D2A Apparatus for forming fibrous webs comprises two wires F1, F2 between which stock is fed from a headbox 11 and which extend round a stationary curved guide 18 and a rotatable guide 19 disposed within the loop of the wire F2. The headbox supplies a slice 11a having an adjustable upper lip 11c, and flexible trailing members 12 which define converging channels 13. The wires may be of bronze, steel, copper, plastics or fabric and may be of more than one material. Expressed water is collected in a saveall 17 and may be directed back to the headbox. The guide 19 is a foraminous roll from which the wires extend over suction box guides 21, 21a. Doctors 15b, 16b and 19b are provided, and the web is couched by suction rolls 23, 25 to a felt PF. The wires are tensioned at T 1  and T 2  and are driven by means M 1  and M 2 . In a second embodiment, Fig. 2 (not shown), the slice is directed upwardly and the doctor 19b is an air-foil. In a third embodiment, Fig. 3 (not shown), the guide 18 is formed as a suction box.
Patent GB-1318928-A (GB)
Title: Cycle chain gases
IPC: B62J13/04
Filed: 1970-11-30
Abstract: 1318928 Cycle chain cases W J L VAN DER WOERD 30 Nov 1970 [30 Nov 1969] 56832/70 Heading B7J A cycle chain case comprises halves 1 and 2 formed of plastics material and of U-section which are provided with recesses 5 and 6 for a pedal crank axle and recesses 9 for a rear axle of the cycle, the contacting edges of the halves interfitting with one another and being secured by pins or spring clips, Fig. 5 (and shown), and the edges of at least one of the halves in the region 8 being spaced either by a strip 10 or by internal projections Fig. 6 (not shown). The edges of recesses 9 may be located on the bifurcated ends of a T-shaped bracket located on the rear axle to support the rear end of the case. The front end of the case is supported by having the recesses 5 located in a channel 23 formed in a centreing disc 18, a flange 21 of the disc being connected to the spokes of the drive sprocket 20. The disc may be formed in two halves.
Patent GB-1186220-A (GB)
Title: Circulator.
IPC: H01P1/387
Filed: 1967-12-18
Abstract: 1,186,220. Circulators. R.C.A. CORPORATION. 18 Dec., 1967 [19 Dec., 1966], No. 57355/67. Heading H1W. A circulator comprises a single element 30 of e.g., ferrite or ferromagnetic garnet supporting and interposed between strip lines 25, 26, 27 and a single ground plane (not shown). The lines, which may be three in number, radiate from a central disc 29 in the vicinity of which the electric field is concentrated. They are connected to the inner conductors of three coaxial sockets supported by plates 21, 22, 23. The magnetic bias field is supplied by an external permanent magnet or by a current loop embedded in the element 30.
Patent GB-1125640-A (GB)
Title: Method of separating aromatic hydrocarbons from mixtures containing them
IPC: C10G21/00
Filed: 1966-12-28
Abstract: 1,125,640. Extracting aromatic hydrocarbons. SOC. ITALIANA RESINE S.p.A. 28 Dec., 1966 [29 Dec., 1965], No. 58010/66. Heading C5E. Aromatic hydrocarbons are separated from liquid hydrocarbon mixtures by introducing the mixture into a multi-stage extractor at an elevated temperature countercurrent to an organic solvent comprising diethylene glycol and/or dipropylene glycol, or sulpholane, withdrawing from the extractor an aromatic-rich liquid extract and a non-aromatic-rich liquid raffinate, conveying said extract to a second multi-stage extractor, operating at lower temperature than the first, countercurrent to a saturated hydrocarbon mixture boiling at atmospheric pressure not lower than 160‹ C., recovering from the second extractor a first liquid phase comprising organic solvent (which may be recycled) and which is substantially free from aromatic hydrocarbons, and a second liquid phase comprising aromatic and saturated hydrocarbons and which is substantially free from solvent, and rectifying said second liquid phase to recover aromatics as product and saturated hydrocarbons which are recycled to the second extractor. The organic solvent preferably contains 2-30% water. A suitable saturated hydrocarbon is a C 12-14  fraction, which may be obtained by distillation of the raffinate from the first extractor. In an example, benzene of over 98% purity is recovered from a hydrogenated reforming petrol cut.
Patent GB-1373619-A (GB)
Title: Carpet underlays
IPC: D05C17/00
Filed: 1972-12-18
Abstract: 1373619 Knitted fabrics; knitting machines LOW & BONAR TEXTILES Ltd 18 Dec 1972 [18 Dec 1971] 58932/71 Headings D1C and D1K [Also in Division B5] A carpet underlay comprises a layer of rubber or plastics foam, particularly a corrugated foam, united to a warp knitted synthetic resin fibre net which is rendered printable by the incorporation therein of strips or tapes of paper or by the adhesion of a paper sheet thereto. The shogging warps of the net may extend diagonally to provide, diagonal stability and the paper strips may be incorporated between the pillar or warp threads and secured by the shogging warps. The reinforced net may be formed from nylon filaments by knitting on a Raschelle machine with sinker bar removed, employing four guide bars 1, 2, 3, 4 with every needle in bar 1 threaded with continuous filament nylon. 66. Bars 2 and 4 have alternate guide needles threaded with nylon and bar 3 is threaded between each pair of needles with a 3mm wide tape of crepe Kraft paper. Bar 3 is modified by insertion of a wire 3a through the normal guide eyes and attachment of a metal strip 3b along the back of the guide needles, the tapes being threaded through between the wire and metal strip. The net is bonded to the foam by heat and pressure or by latex adhesive applied by lick roller.
Patent GB-1403160-A (GB)
Title: Cicatrizants
IPC: A61K36/00
Filed: 1973-12-27
Abstract: 1403160 Extraction of a cicatrizant from cotton SOC FARMACEUTICI ITALIA SpA 27 Dec 1973 [29 Dec 1972] 59811/73 Heading A5B A dark grey wax having cicatrizant activity is prepared by refluxing crude cotton with a chlorine-containing solvent such as methylene dichloride or chloroform, separating the resultant solution from the remaining solid matter and evaporating off the solvent from the solution to leave, as a residue the cicatrizant. The refluxing may be effected for from 3 to 5 hours and the separation of the resultant solution from the remaining solid matter may be effected by filtration.
Patent GB-1418042-A (GB)
Title: Ionic flame monitor
IPC: F23N5/12
Filed: 1972-12-28
Abstract: 1418042 Flame monitors COMBUSTION ENG Inc 28 Dec 1972 [30 Dec 1971] 59840/72 Heading F4T A flame monitor comprises electrodes 12, 14 for location in a flame 10 for detecting an A.C. flame signal, a D.C. potential source 16 applied between the electrodes, a signal processor 24 having a coupling circuit 28, for passing to an output thereof signal A.C. signal energy at the input thereof, and a flame switch circuit 30 responsive to the output of circuit 28 for providing an output commensurate with flame presence or absence respectively when the output of cicuit 28 is at least as great as a certain value or less than said value, and clamping means 44 operative to cause the flame switch circuit to give a flame absence output if the A.C. voltage across electrodes 12, 14 exceeds a predetermined level, regardless of the output level of circuit 28. Circuit 28 comprises a double tuned high-input low-output impedance circuit providing attenuation of signal frequencies below about 200 Hz. The output of circuit 28 passes via an amplifier 84 to a potentiometer 82 allowing adjustment of said certain value which when equalled or exceeded by the output of amplifier 84 causes triggering of SCR 75 to energize a relay 72 thus supplying energy to, for example, a lamp or fuel valve via contacts 40. Capacitor 78 and resistor 80 delay initial energization of relay 72 by Y4 sec. and maintain relay 72 energized for 1À5-2 sees. after SCR 75 cuts off. The clamping means 44 comprises a D.C. blocking capacitor 90 and a resistor 98 across which a voltage is developed to turn on transistor 98<SP>1</SP>, and thus clamp SCR trigger 76 to earth preventing SCR turn-on, whenever the A.C. voltage across electrodes 12, 14 exceeds said predetermined level causing conduction of a breakdown device. The breakdown device comprises a single Zener diode, or a neon lamp 92 in series with either a diac or one or more Zener diodes 94. Lamp 92 provides a visual warning. Capacitor 112 provides a fairly constant base drive to transistor 98<SP>1</SP> when and if the switching voltage across reistor 98 is intermittent and occurs, e.g. only several times per second. An SCR may replace transistor 98<SP>1</SP> to permanently clamp trigger 76 to earth when an excessive A.C. voltage is first detected, operator reset being required in that case.
Patent GB-1337069-A (GB)
Title: Method and apparatus for inserting and removing objects through  a wall opening without contaminations
IPC: G21F7/005
Filed: 1971-12-23
Abstract: 1337069 Shielded enclosures GESELLSCHAFT FLIER KERNFORSCHUNG mbH 23 Dec 1971 [29 Dec 1970] 60102/71 Heading B4Q The screening wall 1 of a hot cell 2 has an opening 3 through which a manipulator 5 extends, a cover 6 of the manipulator being secured to a tube 7 which is in turn secured in a flange 9 by bolts 10. In front of the cover 6 there is a bellows 14 made of a transparent material and including a pocket 16 containing a "double cover" system 17 comprising two parts 18, 19 interconnected by a screw coupling 20. At its end facing the cover 6, the bellows 14 has a cover 21 secured to a flange 22 by bolts 23. In order to remove the manipulator 5, the covers 6, 21 are coupled by means of screws 24 and the bolts 10, 23 are then released. Thereafter the length of the bellows 14 is increased (by hand or mechanically) and the "double cover" system formed by the covers 6, 21 completely withdrawn into the interior of the bellows together with the manipulator 5. Subsequently, the "double cover" system 17 in the pocket 16 is moved by hand to the opening 3 and inserted such that one part 18 fits into the flange 9 and the other part 19 fits into the flange 22, the parts being secured by the bolts 10, 23. The screw coupling 20 between the parts 18, 19 is then released and the two flanges 9, 22 are separated. Devices may be located within the bellows 14 which are actuated from the outside, by means of which the "double cover" system 17 or the manipulator 5 can be moved. It is possible to replace the bellows 14 by a telescopically extensible tube. When using a metal tube (e.g. on account of the gamma rays emanating from the opening 3), protected openings with lead glass windows may be provided for observation purposes.