baber/WOPTO huggingface dataset:
Patent GB-1165218-A (GB)
Title: Production of Phthalocyanine Pigments
Inventor: TULLSEN VOLNEY
IPC: C09B67/16
Filed: 1966-10-05
Abstract: 1,165,218. Phthalocyanine pigments. GAF CORP. 5 Oct., 1966 [9 Nov., 1965], No. 44568/66. Heading C4P. A process of preparing a phthalocyanine pigment comprises (1) forming a salt of a phthalocyanine starting material selected from metalfree phthalocyanine, copper phthalocyanine and aluminium phthalocyanine by reaction of from 1 to 8 mols of a strong acid selected from sulphuric acid, phosphoric acid, toluene sulphonic acid, trifluoroacetic acid, chlorosulphonic acid, ethyl sulphuric acid and trichloracetic acid per mol of phthalocyanine starting material; (2) mixing the system comprising the phthalocyanine starting material and strong acid until a uniform mixture is obtained; and (3) regenerating during or after a milling operation the free phthalocyanine with water in the presence of (a) a salt selected from an alkali metal sulphate, alkali metal acid sulphate, alkali metal phosphate, alkali metal acid phosphate and an alkali metal salt of a lower alkanoic acid containing from 2 to 4 carbon atoms inclusive and (b) a liquid selected from a lower alkanoic acid containing from 2 to 4 carbon atoms inclusive, and alkanol, alkylene glycol, alkyl ester of a said lower alkanoic acid, and an alkyl ketone. The preferred materials used in the pigment preparation are sulphuric acid, sodium sulphate and ethylene glycol.
Patent GB-1412655-A (GB)
Title: Apparatus for slitting webs of material
IPC: B26D5/04
Filed: 1973-09-24
Abstract: 1412655 Cutting apparatus JAGENBERGWERKE AG 24 Sept 1973 [11 Nov 1972] 44603/73 Heading B4B Apparatus for slitting a web of material, e.g. paper, comprises a first disc cutter 26 rotatably mounted on an axially fixed shaft, a co-operating second disc cutter 23 rotatably mounted on an axially movable shaft 21 which is mounted via leaf springs 11, 12 on a carriage 5 for movement in a vertical plane and also mounted via leaf springs 16, 17 such that the cutter 23 can be moved axially into mating contact with the cutter 26. The leaf springs 11, 12 are each secured at one end to a bracket 6, 7, 8, 9 fixed to the carriage 5, the other ends being secured to coupling block 15. A piston-and-cylinder device 24 is mounted between the carriage and the block thereby enabling the cutter 23 to be raised or lowered relative to the plane of the material. The axial movement of the cutter 23 is effected by a piston-and-cylinder device 25 mounted between an extension 31 on the block 15 and a block 19 fixed to the leaf spring 16. Adjustable stop screws 30, 35 are provided for limiting the movement of the cutter 23 in its two directions.
Patent GB-1124097-A (GB)
Title: Polyurethanes
IPC: C08G18/10
Filed: 1965-10-22
Abstract: A polyurethane is produced by reaction of an organic polyisocyanate with a reaction product of an organosilicon compound containing at least one Si atom and at least two Si-bonded alkoxy groups, and at least one polyfunctional compound containing at least one alcoholic OH group and either at least two additional active hydrogen containing groups or at least one additional active hydrogen containing group which is not OH, the functionalities of the polyfunctional compound and Si compound being chosen so as to provide more than two active hydrogen atoms per molecule in the said reaction product, these atoms being part of a group of the structure OX, where X is a substituted hydrocarbon radical derived from the polyfunctional compound attached to silicon via the oxygen atom.  The additional active hydrogen containing group may be OH, NH2 or SH. The organosilicon compound may be an alkoxy substituted organosiloxane, e.g. of formula <FORM:1124097/C3/1> <FORM:1124097/C3/2> or may be a substituted silane, e.g. of formula <FORM:1124097/C3/3> wherein m is 0-20, n is 1-3, R is C1- 4 alkyl or alkoxy or is aryl and R1 is OH or alkoxy with the proviso that in the case of the silane at least one R is alkyl or aryl, and when n = 1, at least one R is alkoxy.  The polyfunctional compound may be a polyol, e.g. glycerol, trimethylolethane, trimethylolpropane (preferred), hexanetriol, erythritol, pentaerythritol, and mannitol, or may be a polyether-ol, e.g. a polyoxypropylene adduct of trimethylolpropane, or may be a polyester-ol, e.g. the adduct of phthalic anhydride and trimethylolpropane. Other specified such compounds include ethanolamine, diethanolamine, various propanolamines, butanolamine, mercaptoethanol, 1-mercapto - 2 - propanol and 1 - mercapto - 2 - butanol. A long list of representative polyisocyanates is given, and includes "prepolymer" isocyanate-polyol reaction products and polyester-polyisocyanates The polyurethanes may be foamed, e.g. by reacting the organosilicon reaction product with tolylene diisocyanate in the presence of trichlorofluoromethane (see Examples 13 and 14).  Organosilicon compounds for use in the above reactions are prepared from the following reactants; dimethyltriphenyltrimethoxytrisiloxane is reacted with trimethylolpropane, 2 - amino - 1 - propanol, 2 - mercapto - 1 - propanol, or the reaction product of sorbitol or sucrose with propylene oxide; trimethylolpropane is reacted with diphenyldiethoxysilane, phenyltriethoxysilane, octamethyloctaphenyl-dimethoxyoctasiloxane, or phenyldimethyl-pentamethoxytrisiloxane.
Patent GB-1141769-A (GB)
Title: Improvements in and relating to motor driven winches
Inventor: GUINOT GABRIEL
IPC: B66D1/28
Filed: 1967-10-02
Abstract: 1,141,769. Winch brakes. POCLAIN. 2 Oct., 1967 [7 Oct., 1966], No. 44756/67. Heading B8B. [Also in Division F2] An hydraulically driven winch drum 1 houses a drum brake which comprises a pair of brake shoes 10 pivoted at one end 11 to a frame and biased into engagement with the drum 1 by a pair of compression springs 12, the springs 12 being compressed to release the brake by an hydraulic ram 13 pivotally connected between a pair of levers 14 which are pivotally mounted on pins 15. The latter are mounted on an adjustable tie bolt 15a. The drive shaft of the hydraulic motor is co-axial with the drum 1 and is coupled thereto by an inwardly directed flange on the drum bolted to an outwardly directed flange mounted on the drive shaft. The remote end of the drum is sealingly covered by the frame supporting the brake shoes 10. The drum brake is intended to be applied once the drum has been brought to rest by controlling the fluid flow to the hydraulic motor.
Patent GB-1521686-A (GB)
Title: Process for the manufacture of polyurethanes
IPC: C08G18/12
Filed: 1975-10-02
Abstract: 1521686 Coated products IMPERIAL CHEMICAL INDUSTRIES Ltd 2 Oct 1975 [16 Oct 1974] 44765/74 Addition to 1216661 Heading B2E [Also in Division C3] Substrates such as knitted, woven or felted textiles of natural or synthetic origin, natural or synthetic rubber, paper, wood, metal, leather and plastics such as polyvinyl chloride, polyethylene, polypropylene, cellulose and its derivatives, nylon, polyethylene terephthalate and polytetramethylene terephthalate especially in the form of films or foams which may be rigid or elastomeric may be coated by applying thereto a composition comprising an organic polyisocyanate and a solution of a polyurethane containing NCO-reactive groups and curing the coating at a temperature ranging from room temperature to 180‹C. The polyurethane solutions are prepared by (1) interacting in a solvent mixture inert to NCO groups a mixture of an essentially linear polymeric polyol, e.g. a polyester, polyesteramide, polyether, polyetherthioether, polyacetal or polyhydrocarbon, a dihydric alcohol, preferably 1, 4-butane diol, and/or water, and optionally a polyhydric alcohol, preferably trimethylolpropane, and an organic diisocyanate, preferably an 80/20 mixture of 2, 4-/2, 6-tolylene diisocyanate, providing 0.85 to 1.1 NCO groups for each NCO-reactive group present until the resultant mixture attains a desired viscosity in the range of 1-1500 poises at 25‹C and thereafter (2) adding a polyfuctional NCO-reactive compound in which NCO reactive groups of different reactivity are present in such amount that there it at least one molecule of such compound for each NCO group present. The preferred coating process used is a transfer process wherein the polyurethane solution is applied as an adhesive layer on top of a polyurethane film which has been produced on a surface from which it is readily removed before the latter is transferred to the desired substrate e.g. a napped fabric using heat and pressure as necessary. Polyurethane solutions for this purpose preferably have a viscosity of 150-700 poises at 25‹C and a solids content of 25-55%w/w.
Patent GB-1281874-A (GB)
Title: Packing element suitable for use in a biological filter
Inventor: BELL WILLIAM PROUDFOOT
IPC: C02F3/10
Filed: 1968-09-20
Abstract: 1281874 Trickling filters BRITISH PETROLEUM CO Ltd 26 Nov 1969 [20 Sept 1968] 44822/68 Heading C1C A packing element used in trickling filters comprises a strip of foamed plastics material -which is permanently deformed into the shape of a coil of spiral cross-section. Data concerning the density of the material, the bulk volume of the coil and the ratio of the length of the strip to the diameter of the coil is given.
Patent GB-1261300-A (GB)
Title: Improvements in and relating to fuel injection systems for internal combustion engines
IPC: F02D41/30
Filed: 1970-09-22
Abstract: 1,261,300. Fuel injection systems. ROBERT BOSCH G.m.b.H. Sept.22, 1970 [Sept.23, 1969; Feb.12, 1970], No.44979/70. Heading G1N. In an I.C. engine fuel injection control system, the power stage 60, which applies the injection control pulses to the solenoid injection valves 11, includes an n-p-n silicon power transistor 66 having its collector connected to the positive lead 26, the negative lead being earthed, and its emitter connected to the solenoid windings, and a base leakage resistance path for protecting the base-emitter path of the transistor 66. As shown, this path is provided by a resistor 69, and in a modification, Fig.3 (not shown), a free-running diode is connected between the negative lead and the collector of amplifying transistor 64, the latter collector being connected to the base of transistor 66 by a resistor. In alternatives, Figs.4 and 5 (not shown), the base leakage resistance path is provided by the collector-emitter path of a transistor, the emitter of said transistor being connected to the emitter of transistor 66, and a diode bridging the base of said transistor and its emitter.
Patent GB-1093758-A (GB)
Title: Scarifiers and like ground working machines
IPC: E02F3/40
Filed: 1965-10-25
Abstract: 1,093,758. Scanifiers. L. ASCHER. Oct. 25, 1965 [July 30, 1965], No. 45119/65. Headings E1F and E1G. A scanifier comprises at least one rotatable cutting tool engaged with the road or like surface under pressure. The tool is a wheel 8, having a smooth or serrated periphery of relatively narrow width, mounted in a forked member, preferably the tine 4 of a nipper, bucket loader or power shovel.
Patent GB-1248838-A (GB)
Title: Control of light reflected from a mirror
IPC: G02F1/1524
Filed: 1969-09-12
Abstract: 1,248,838. Rear view mirrors; anti dazzle devices. AMERICAN CYANAMID CO. 12 Sept., 1969 [25 Sept., 1968], No. 45188/69. Addition to 1,186,541. Heading B7J. [Also in Divisions G5, H1, H4 and H5] The electro-optical device of Claims 1 to 13 of the parent Specification utilizing electrochromic material, the radiation absorption characteristics of which vary in response to an electric field, includes a reflective layer to operate by light reflection rather than by transmission. An electrode itself may be the reflector and may be self-supporting e.g. of stainless steel. Ag, Al, Cr, Hg alloys, steel and Ni reflectors are specified, and may have a spherical or parabolic rather than flat surface. Application as a rear view mirror in motor vehicles for night driving is disclosed, enabling the intensity of reflected light from following vehicles to be controlled.
Patent GB-1004613-A (GB)
Title: Electric signal amplifiers employing negative conductance
IPC: H03F3/12
Filed: 1961-12-18
Abstract: 1,004,613. Negative resistance amplifiers. WESTERN ELECTRIC CO. Inc. Dec. 18, 1961 [Dec. 29, 1960], No. 45243/61. Drawings to Specification. Heading H3T. An amplifier comprises a quarter wavelength line or an equivalent-impedance converting network connected between its input and output terminals with negative impedance devices respectively in shunt between the input and output of the line. It is explained that by this means the amplifier may be matched to the source and the load. In the embodiment described the line is a lumped constant device and the negative resistance of the tunnel diodes used as the negative impedance devices are transformed to the value required for stable operation by transformers.
Patent GB-1061770-A (GB)
Title: Improvements in vehicles having steered wheels each mounted on a laterally inclined stub axle support belonging to a transverse deformable parallelogram suspension linkage
Inventor: PAUL PANHARD
IPC: B60G11/08
Filed: 1963-11-15
Abstract: 1,061,770. Vehicle steering mechanisms; independent suspensions. SOC. ANON. DES ANCIENS ETABLISSEMENTS PANHARD & LEVASSOR. Nov. 15, 1963 [Nov. 21, 1962], No. 45288/63. Headings B7D and B7H. The independently suspended wheels 1 of a motor vehicle are each mounted on a stub axle support 2 which forms part of a parallelogram suspension linkage, is pivotable about an axis inclined laterally of the vehicle at an angle A to the vertical and for steering is connected by a drag link 9 with ends 10, 12 to a common movable member 13 guided so that the paths of the ends 12 are parallel to the projections on a vertical plane transverse of the vehicle of the paths of the ends 10. In Fig. 1 the wheels are mounted on parallelogram linkages including transverse leafsprings 6, 7 and the movable member 13 is controlled by rack-and-pinion gear 19, 21 and guided by a pair of rods 16, 16a, inclined at angle A to the horizontal, on which slide sleeves 17, 17a pivoted at 18, 18a to the member 13. In a modification (Fig. 3, not shown) the connections between the movable member 13 and the rod 16, and drag link 9, on each side of the vehicle, are coaxial and on opposite sides of member 13, the upper edge of which is curved and engaged by a roller on the vehicle superstructure.
Patent GB-1048710-A (GB)
Title: Process for the manufacture of aminotriazine/formaldehyde molding compositions
IPC: C08G12/26
Filed: 1965-10-28
Abstract: A benzoguanamine - melamine - formaldehyde moulding composition is prepared by (a) reacting benzoguanamine and formaldehyde at a pH of 9 or slightly above to form a monomeric reaction product and (b) further reacting the product of (a) with melamine to form a heat curable hydrophilic syrup, and (c) adding a polymerization catalyst (e.g. MgBr2) to the syrup obtained in (b). a -Cellulose may be added to the product to form a moulding powder.
Patent GB-988216-A (GB)
Title: Improvements in or relating to photographic and cinematographic cameras
IPC: G03B17/18
Filed: 1963-11-20
Abstract: 988, 216. Photo-electric indication of brightness. EASTMAN KODAK CO. Nov. 20, 1963 [Nov. 20, 1962], No. 45843/63. Heading G1A. [Also in Division G2] A brightness indicating device comprises a relaxation oscillator circuit which oscillates when the illumination of a photo-cell connected to the oscillator falls below a predetermined level and an indicator lamp flashing in synchronism with the oscillations. When the illumination of a photoresistor 15 falls to the predetermined level, its resistance is such that the voltage across the photo-resistor and the meter 16 is sufficient for the neon lamp 10 to strike. The capacitor 11 then charges through the lamp until lamp 10 is extinguished, whereupon the capacitor discharges through the resistor 12 until the voltage across the lamp 10 is again sufficient for it to strike. In a modified circuit, Fig. 3 capacitor 11 is charged to a voltage dependent upon the resistance of photoresistor 15. When the illumination is below the predetermined level the voltage is sufficient for neon lamp 10 to strike reducing the capacitor voltage to a point at which the lamp 10 extinguishes. The brightness indicating device may be incorporated in a camera, the field of view of photoresistor being the same as that of the camera lens and the indicator lamp is visible in the viewfinder.
Patent GB-1126694-A (GB)
Title: Optically active new salt complexes and their applications
IPC: A61K/
Filed: 1966-10-13
Abstract: 1,126,694. Carnitine salts. OTSUKA PHARMACEUTICAL CO. Ltd. 13 Oct., 1966 [15 Oct., 1965], No. 45880/66. Heading C2C. A carnitine nitrile salt of the formula where R is an alkyl group, may be obtained by reacting carnitine nitrile hydroxide with an N-acyl-glutamic acid or by reacting carnitine nitrile chloride with an alkaline salt of an N- acyl-glutamic acid. Diastereoisomers of compounds of the above formula may be separated by dissolving a mixture of the diastereoisomers in a polar solvent, e.g. methanol, ethanol or isopropanol or a mixture thereof, cooling the solution and separating the less soluble diastereoisomer. Separated diastereoisomers may be converted to a carnitine salt by decomposing the above salt with aqueous mineral acid and subsequently hydrolysing the carnitine nitrile salt present in solution. Examples are given in which the radical R is methyl.
Patent GB-1057390-A (GB)
Title: Selective extraction of hydrocarbon mixtures containing paraffinic and aromatic hydrocarbons
IPC: C10G21/20
Filed: 1963-11-21
Abstract: Hydrocarbon mixtures containing paraffinic and aromatic constituents are selectively extracted with an N-substituted piperazine, in which one or both nitrogen atoms are attached to an alkyl group, hydroxyalkyl group, aldehyde group, or ether group, and in which the alky group of the substituents contains 1-8 carbon atoms, as the selective solvent.  65-50% wt. of water may be added to the piperazine. Separating efficiency may be improved by the addition of a second solvent, for example, hydrocarbons of 2-7 carbon atoms, N-substituted pyrrolidones, polyhydric alcohols and their esters, urea, phenols, keto-acids, and acetic acid.
Patent GB-1478599-A (GB)
Title: Process for the production of thallium palladate
IPC: C25B11/06
Filed: 1974-10-24
Abstract: 1478599 Thallium palladate C CONRADTY 24 Oct 1974 [27 Oct 1973] 46011/74 Heading C1A Thallium palladate is made by heating thallic oxide and palladium monoxide to a temperature of 500-600 C. In an embodiment, thallous nitrate is used as the starting material in place of thallic oxide and is heated to a temperature to above 350 C. to generate thallic oxide. Palladium monoxide may be mixed with the thallous nitrate or added after the formation of the thallic oxide. After completion of the reaction excess thallium oxides may be removed from the product by sublimation at a temperature of above 650 C. and any palladium present may be removed by boiling with aqua regia. The compound has a cubic face centred structure. Thallium palladate may be used as a cover layer for metal anodes (as described in Specification 1,478,600) for use in electrochemical processes such as the electrolysis of NaCl, KCl, chlorate and HCl.
Patent GB-1074856-A (GB)
Title: Improvements relating to the locating of a selected one of each of a plurality of pairs of lengths of wire within an aperture
Inventor: WINROW DONALD
IPC: G09F9/37
Filed: 1964-11-12
Abstract: 1,074,856. Making monogrammic signs. FERRANTI Ltd. Nov. 12, 1964 [Nov. 13, 1963], No. 46071/64. Heading B3A. [Also in Division G5] For appropriately passing conductor wires through magnetizable coils (14), (Fig. 2, not shown), activation of which suitably orientates discs forming part of a monogrammic sign as disclosed in Specification 934,001, wires looped about shanks 22 are secured to a post 42, or a single wire is (as shown) looped alternately about post 42 and shanks 22 and cut suitably after all the coils have been threaded on. A comb 44 is pressed on shoulders 36 of the shanks to deflect upwardly selected lengths of the wire(s) 35 which are then gathered together to enable a coil (14) to be threaded on to them. The procedure is repeated, using a different comb for each coil, until all the coils have been assembled on the wire(s).
Patent GB-945834-A (GB)
Title: Method for insulating conductors
IPC: H01B3/30
Filed: 1961-12-27
Abstract: A metal conductor such as a copper wire is coated with a plurality of layers of a polyimide composition comprising the polymeric condensation product of an aromatic tetracarboxylic acid with an aromatic diamine containing from 6 to 16 carbon atoms or a saturated aliphatic diamine containing up to 6 carbon atoms, and another cured organic composition which is (1) a plain oleoresinous wire enamel, (2) an epoxy enamel comprising a high molecular weight epoxide resin, a fusible condensate of an aldehyde with an organic ammonia derivative, and a polyhydric phenol, or (3) an acrylic enamel applied as an aqueous dispersion of an interpolymer obtained by the polymerisation of acrylonitrile with an alpha-olefinic monocarboxylic acid and an ester of said acid with a 1 to 8 carbon atom saturated aliphatic monohydric alcohol, blended with a dispersion of a heat reactive condensation product of an aldehyde with a phenol or an organic derivative of ammonia such as urea or melamine.ALSO:A metal conductor such as a copper wire is coated with a plurality of layers of a polyimide composition comprising the polymeric condensation product of an aromatic tetracarboxylic acid with an aromatic diamine containing from 6 to 16 carbon atoms or a saturated aliphatic diamine containing up to 6 carbon atoms, and another cured organic composition which is (1) a plain oleoresinous wire enamel, (2) an epoxy enamel comprising a high molecular weight epoxide resin, a fusible condensate of an aldehyde with an organic ammonia derivative, and a polyhydric phenol, or (3) an acrylic enamel applied as an aqueous dispersion of an interpolymer obtained by the polymerization of acrylonitrile with an alpha-olefinic monocarboxylic acid and an ester of said acid with a 1 to 8 carbon atom saturated aliphatic monohydric alcohol, blended with a dispersion of a heat reactive condensation product of an aldehyde with a phenol or an organic derivative of ammonia such as urea or melamine.  The oleoresinous enamel may be formed from copal, resin or shellac and a drying oil.
Patent GB-1083389-A (GB)
Title: Process and apparatus for the liquefaction of low-boiling point gases
IPC: F25J3/02
Filed: 1965-11-02
Abstract: 1,083,389. Liquefaction of gases. LINDE A.G. Nov. 2, 1965 [Nov. 3, 1964], No.46429165. Heading F4P. Liquefaction of a low boiling point gas or a gas mixture such as natural hydrocarbon gas is effected by forcing it by a compressor 2 at or above its critical pressure, e.g. 200 atmospheres through a plurality of lines 3, 8, 10 in parallel, expanding gas in line 3 in a turbine 4 to the pressure of gas in feed line 1, e.g. 30 atmospheres, using it in an exchanger 6 to cool gas in line 8 and returning it to the feed line 1; gas in lines 8, 10 being cooled in exchangers 9, 11, 12 to or below the critical temperature and expanded in a turbine 13 to 30 atmospheric pressure. Expanded liquid natural gas is then further cooled in an exchanger 15 and is expanded to about atmospheric pressure at a valve 16 into a separating column 17 from the base of which product liquid methane is withdrawn through a duct 18. Nitrogen-rich methane gas and pure methane gas withdrawn through ducts 20, 19 serve to cool exchangers 11, 12, 15 whilst exchanger 9 is cooled by a portion of feed liquid leaving turbine 13 through a line 14 and this liquid then serves to cool exchanger 6 and is assisted by withdrawing a portion of feed gas leaving the compressor 2 through a line 3 expanding it in a turbine 4. The gas leaving the warm end of exchanger 6 is returned to the inlet of the compressor 2.