baber/WOPTO huggingface dataset:
Patent GB-1118617-A (GB)
Title: Method of preparing polyurethane resins
IPC: C08G18/65
Filed: 1965-09-16
Abstract: Particulate polyurethane resins are prepared by reacting (i) a polyhydroxyl compound having a M.W. of 300 to 8000, (ii) an organic polyisocyanate and (iii) a chain extending polyol, such that the total NCO:  OH ratio is substantially 1:1, in the presence of 5 to 60% by weight of the total charge of an ether capable of dissolving a major portion of the resulting polymer, the polymer being pulverized during its formation.  The components are preferably used such that the NCO/OH ratio in the whole reaction mixture is 0.90-1.15:1 and the ether solvent dissolves preferably at least 80% of the resulting polymer.  Suitable polyhydroxyl compounds are polyesters, polyether esters and polyethers.  Exemplified are a polybutylene adipate, a polyethylene propylene adipate, a polytetramethylene glycol and a polyethylene adipate.  The organic polyisocyanate may be an aromatic or aliphatic diisocyanate more preferably 4,41 - diphenylmethane diisocyanate. Suitable polyols are alkane diols or triols which may contain in the molecule a tertiary or quaternary nitrogen atom, e.g. 1,4-butanediol, ethylene glycol and a mixture of 1,4-phenylene bis(hydroxyethyl ether) and N-methyldiethanolamine. The ether is preferably a cyclic ether such as tetrahydrofuran and dioxane, but linear ethers such as anisole may also be used. Catalysts such as tertiary amines and organic tin compounds may be incorporated into the reaction mixture.  The preferred reaction temperature is from room temperature to 200 DEG  C. and the pulverization is preferably continued for a long period after a high degree of polymerization has been reached to obtain a very fine resin powder from which solvent, catalyst and other volatile matters may readily be eliminated under heat and reduced pressure.ALSO:Artificial leather may be produced by impregnating a non-woven fabric composed of a mixed spun fibre prepared in melt spinning from a mixture of 70 parts of nylon 6 and 30 parts of polystyrene with a polyurethane resin solution which polyurethane has been prepared by reacting a polyethylene propylene adipate and 1, 4-butanediol with 4,4\sv-diphenylmethane diisocyanate in tetrahydrofuran accompanied by the continuous pulverisation of the polyurethane as it is formed.  The powdered polyurethane is used to impregnate the fabric in the form of a 12% solution in N, N-dimethylformamide and is coagulated in water.
Patent GB-1030239-A (GB)
Title: Method of cooling gases
IPC: B01D51/10
Filed: 1963-10-08
Abstract: Gases from an exothermic catalytic synthesis process are cooled by indirect heat exchange with a volatile organic liquid which is under pressure, and the resulting organic vapour is expanded through a turbine, then cooled, condensed, and recycled.  Suitable organic liquids are CFCl3, CCl2F2, propane and butane. With reference to the figure (not shown), gases at 400-450 DEG  F. from NH3 synthesis in converter (2) are cooled to 200-250 DEG  F. in tubular heat exchanger (3) by contact with organic liquid admitted at 150-250 psia. from (4).  The gases may be further cooled to below 150 DEG  F. in heater exchanger (6) using, e.g. water.  Condensed NH3 is separated from H2 and N2 in (10), the latter gases being returned to converter (2). The organic vapour from (3) passes via liquid separator (18) to turbine (20, which may be connected to a compressor or generator. The vapour, at 20-50 psia., is then liquefied in cold-water condenser (24) and pumped back to exchanger (3).
Patent GB-828982-A (GB)
Title: Improvements in evacuated and gas-filled devices and methods of manufacturing
IPC: H01J7/18
Filed: 1957-12-20
Abstract: 828,982. Thermionic valves. GENERAL ELECTRIC CO. Dec. 20, 1957 [Dec. 28, 1956], No. 39644 /57. Class 39 (1). In the manufacture of a discharge device the various parts comprising it are stacked in the pre-heat zone 2, Fig. 1, of a furnace 1 to commence bake out of occluded gases. Additional means may be provided, such as contacts 53 for cathode heater 44, to activate cathode 43, for example by reducing it from barium carbonate to barium oxide. Any gases evolved may be removed by providing a continuously renewed atmosphere of dry hydrogen by means of inlets 12 and outlets 13. The envelope 16 of the device may be of ceramic material and comprise several sections 23, 32, 40 to which electrode supports 20, 25, 34 may be brazed by means of the upturned flanges such as 28, rings 31 and solder washers 24, 33. In order to provide free communication between the furnace atmosphere and the interior of the envelope washers 33 may be corrugated, Fig. 2. In the next stage of manufacture the device is moved into heating section 3 where the temperature is raised, further degassing occurs, and any hydrogen previously absorbed by the disc 50 of a getter material such as titanium or zirconium is released. At a predetermined temperature washers 24, 33 melt thereby sealing the envelope, and on further raising the temperature the getter material combines with any remaining active gases other than hydrogen. In the final stage, the device is moved into the cool-down section 4 where the solder solidifies, completing the construction of the device, and the getter absorbs all of, or a predetermined amount of the hydrogen entrapped in the envelope. A separate heater 60 may be provided below the disc 50, Fig. 4 (not shown), so that the pressure in the device may be altered during operation. Alternatively the furnace atmosphere may be carbon dioxide in which case the getter may be barium oxide, or the manufacture may be performed in the normal atmosphere by suitable choice of sealing temperature, getter material &c. The method may be used to provide fillings of inert gases by including a predetermined quantity of the required filling in the furnace atmosphere.
Patent GB-1474062-A (GB)
Title: Manufacture of aqueous suspensions of olefin polymer fibrids
IPC: C08J3/02
Filed: 1974-09-12
Abstract: 1474062 Synthetic paper BASF AG 12 Sept 1974 [13 Sept 1973] 39764/74 Heading D2B [Also in Division C3] Paper-like products and webs may be formed from aqueous dispersions of polyolefin fibrids formed by dispersing the fibrids in water in the presence of a dispersing agent which is a polycondensate of melamine, formaldehyde and an aminocarboxylic acid or alkali metal salt thereof in a molar ratio of melamine to formaldehyde of 1:1.8 to 1:3 and 0.1 to 0.5 mole of acid per mole of melamine, the polycondensate having a viscosity of 10 to 150 cps at 20C in 30% w/w aqueous solution. The polymer may be a polyethylene, polypropylene or copolymer of ethylene with vinyl acetate, n-butyl acrylate or acrylic acid. Specified acids are amino acetic, o-amino benzoic and #-amino-caproic acids. The dispersions may be mixed with cellulose or rayon fibre dispersions. In examples dispersions of polyethylene fibrids prepared with a polycondensate of melamine, formaldehyde and caprolactam in the presence of sodium hydroxide are used (5) to form a paper-like product, (2 and 4) mixed with sulphite cellulose and used to form papers, and (3) mixed with chopped rayon staple fibres and used to form a textile-like web.
Patent GB-1105073-A (GB)
Title: Apparatus for cutting sheet materials
Inventor: BASCOMBE HEWITT JOHN
IPC: C14B5/00
Filed: 1965-09-20
Abstract: 1,105,073. Cutting-out Dresses. STAFFORD TOOL & DIE CO. Ltd. 18 May, 1966 [20 sept,. 1965] No., 39995/65. Heading B4B. In an hydraulic cutting press 29 having a runway 11 along which material to be cut is fed into the press, the runway has extending therealong a railway 13, 14 along which a carriage 15 is drivable to push the material to be cut into the press. The carriage has a projection 33, the front end of which engages a cutting forme 32 upon which the material to be cut is laid up, the carriage being connected to a driven endless conveyer 18. The forme is moved stepwise through the press, the operation of the carriage and of the press being synchronously controlled by a programme disc 27. The runway is provided with guides 35, 36 to guide the forme centrally into the press. The runway comprises a plurality of traversable supports 12, 12a, 38 for supporting the forme, each support including a ball rotatably mounted at the upper end thereof, the supports 38 being spring-loaded. In a modification, the press is provided with two side structures (39, 40), Fig. 4 (not shown), and a rear structure (42), the structures being provided with traversable supports (41, 43, 44), some (44) of the supports being spring-loaded. The side structures are used for preparing formes for cutting and, for receiving via the rear structure formes after they have been passed through the press.
Patent GB-881065-A (GB)
Title: Improvements in or relating to electrical lanterns or torches
IPC: F21L4/00
Filed: 1959-11-25
Abstract: 881,065. Electric battery lamps. WING, G. C. April 21, 1960 [Nov. 25, 1959], No. 40047/59. Class 39(2) In an electric battery lamp comprising a casing accommodating a battery, at least one electric lamp bulb, a switch to control the lamp circuit and a carrying handle provided on the casing, the casing is in the form of a unitary structure produced by moulding the component parts from synthetic plastic material and cementing or otherwise bonding them together. The parts may each consist of half the casing and half the carrying handle which in this case is in the form of a loop joined to the casing at both ends. In the Figure shown, the casing 1 is in the form of a box with a closed end 1A and a lid 3 held in place by spring catches 4A and accommodates four battery cells 9 arranged in pairs side by side, the cells at one end contacting a strip 10 and at the other the output terminals 7 from which flexible conductors extend to the lamps and switches. Two lamps are provided, a main lamp mounted in a reflector 16 closed at the front by a glass plate 22 and supported by a band 19 encircling the neck of the reflector and having its ends formed as a fork for mounting on a pivot pin 20 and an auxiliary lamp carried in a casing 26 at the end of an arm 27 also mounted on the pin 20. The auxiliary lamp is controlled by a separate switch on the casing 26. The arm in its normal position fits into a groove in the handle 2 and can be swung through 180 degrees about the pin 20. An aperture 27A is provided in the arm 27 for access to the switch 30 for the main lamp when the arm is in its normal position. Specification 827,693 is referred to.
Patent GB-1150258-A (GB)
Title: Device for Lifting Articles, e.g. Vehicles.
Inventor: KUIPERS HEINRICH
IPC: E04H6/06
Filed: 1967-09-01
Abstract: 1,150,258. Mechanical garages; garage lifts. H. KUIPERS. 1 Sept., 1967 [1 Sept., 1966], No. 40049/67. Headings B8E and B8H. [Also in Division F2] A device for lifting an article, e.g. a vehicle, comprises a platform 1, means for moving the platform longitudinally, and two guide arms 8 pivotally connected to opposite sides of the platform and to a base member, each guide arm comprising a plurality of pivotally interconnected members adapted to support themselves successively against adjacent members after rotation about their pivots, so that the guide arms provide curved effectively rigid members during movement of the platform. The latter comprises tubes 4 mounted on rods 5 pivoted at 6 to a wall 7. The platform may be moved by a winch on the wall 7, or by a vehicle supported on rollers 2a, 2b, 3a, 3b driving a drum connected to one of the rollers, the drum carrying a wire extending to the wall 7 or round pulleys and back to the platform. To prevent movement of a vehicle on the platform stops 23, 26 are provided operated by movement of the vehicle and the platform. In a second embodiment, Fig. 5 (not shown), the tubes 4 and rods 5 are curved. In a third embodiment, Fig. 6 (not shown), the platform is guided by wheels running in curved rails.
Patent GB-1341140-A (GB)
Title: Colour television camera
IPC: H04N9/097
Filed: 1972-08-31
Abstract: 1341140 Colour television beam splitter ROBERT BOSCH FERNSEHANLAGEN GmbH 31 Aug 1972 [2 Sept 1971] 40454/72 Heading G2J [Also in Division H4j A beam splitter in a colour television camera is enclosed in a dust-tight housing, the light entry aperture being sealed by two quarter-wave plates between two glass covers and the light exit apertures being sealed by colour correcting filters.
Patent GB-1473716-A (GB)
Title: Method for underwater friction welding of metallic articles
IPC: B23K20/12
Filed: 1974-09-17
Abstract: 1473716 Welding by pressure AGENCY OF INDUSTRIAL SCIENCE & TECHNOLOGY 17 Sept 1974 [22 Sept 1973] 40511/74 Heading B3R In friction welding metal articles 1a 1b underwater, the articles are abutted and relatively rotated under pressure, heat insulating material 3a 3b having been provided about the peripheries of the areas of contact 2a 2b of the articles. The material 3a 3b may be strips of paper or cloth on which an adhesive may be spread or glass fibre cloth carrying an adhesive; this material being wrapped around the articles or alternatively collars made of these materials may be placed on the articles. One part is rotated while the other is held stationary and during welding the flash 4a 4b locally burns through the material about the articles. A round bar may be welded to a plate using a wrapper tape or collar on the plate. In examples stepped cylindrical steel articles are welded using plastics material tape carrying heat-proof adhesive and polyethylene tetrafluoride impregnated glass fibre cloth carrying heatproof adhesive. It is suggested that thermosetting adhesive-glass fibre cloth, thermosetting adhesive-paper tape or insulating tape may be employed.
Patent GB-938313-A (GB)
Title: Novel organohalosilanes and siloxanes
IPC: C08G77/24
Filed: 1961-11-13
Abstract: The invention comprises aryoxyaryl silanes and siloxanes of the general formulae: (1) (R-O-R1)(R11)a(R111)bSiX (2) <FORM:0938313/IV(a)/1> and <FORM:0938313/IV(a)/2> wherein R is phenyl, halogenated phenyl, aliphatic hydrocarbon substituted phenyl, or halogenated aliphatic hydrocarbon substituted phenyl; R1 is phenylene, halogenated phenylene, aliphatic hydrocarbon substituted phenylene or halogenated aliphatic hydrocarbon substituted phenylene; R11 is aryl, alkaryl, or halogenated derivatives thereof; R111 is aliphatic hydro-carbon containing up to 4 carbon atoms or halogenated derivative thereof; X is halogen; Z is a hydrocarbon radical or a halogenated hydrocarbon radical; a is 0 or 1; b is 1 or 2 and a+b=2; and y is from 1 to 18.  Specified R groups are phenyl, xylyl, chloroxylyl, tolyl, and chlorophenyl.  Specified R1 groups are phenylene, xylylene, chloroxylylene, tolylene and chlorophenylene. Specified R11 groups are naphthyl, chloronaphthyl, xylyl, tolyl, phenyl, and chlorophenyl.  Specified R111 groups are methyl, ethyl, propyl, butyl, vinyl, propenyl and chloropropyl.  Specified Z groups are phenyl, tolyl, xylyl, chlorophenyl, benzyl, phenyl ethyl, chlorobenzyl, methyl, ethyl, propyl, vinyl and cyclohexyl.  In (3) at least 60 mole per cent of the silicon bonded organo groups are aliphatic hydrocarbon radicals of up to 4 carbon atoms.  R and R11 may be the same or different.  Compounds o formula (1) are derived from compounds of formula ROR1X and (R11)a(R111)bSiX2 by use of Grignard or organo lithium derivatives of ROR1X.  Alkaline hydrolysis of compounds of formul (1) produces compounds of formula (2). Compounds of formula (3) are obtained by copolymerizing (1) with a silane of formula (Z)2SiX2, or by reaction of (2) with a cyclopolysiloxane -[-(Z)2SiO-]-n where n is 3 to 10.  Ex amples describe the preparation of: (1) p-phenoxyphenyldimethylchlorosilane; (2) 1,3-bis(p-phenoxyphenyldimethyl) disiloxane; (3) Formula (3) wherein R=C6H5, R1=C6H4, R11 and R111=CH3, Z=CH3, and y=6,4 (average); (4) methyl phenyl-p-phenoxy phenylchlorosilane and (5) 1,3-bis-(p-phenoxyphenyl methyl phenyl) disiloxane.
Patent GB-889865-A (GB)
Title: Improvements in and relating to beds, mattresses and bedding for use in the tropics
IPC: A47C21/04
Filed: 1959-12-01
Abstract: 889,865. Ventilating. FOX, R. H. Dec. 1, 1960 [Dec. 1, 1959], No. 40742/59. Class 137 [Also in Group XIV] A bedstead has a hollow spring mattress 6 with a covering impermeable to air. connected to a refrigerating unit 1 which supplies cold air to the mattress via opening 2, the air escaping from an opening 4 to pass over the occupant of the bed and return to the unit 1 via openings 5, 3 in a compartment formed in the mattress by a partition 7. An air impermeable sheet 15 limits air exchange with the exterior. The temperature of the air delivered to the bed is controlled by a thermostatically operated re-heat system or a bypass system with a thermostatically controlled vane. The air may be circulated by a fan or the unit 1 mounted above bed level and convection relied upon.
Patent GB-966306-A (GB)
Title: Process for rendering fibrous materials water-repellent
IPC: D06M15/643
Filed: 1960-11-28
Abstract: Siloxane emulsions for waterproofing fibrous materials (see Division D1) comprise a heat-curable organopolysiloxane and as emulsifier a polyvinyl alcohol or a modified polyvinyl alcohol obtained from a polyalkylene glycol by graft polymerization with polyvinyl acetate and subsequent hydrolysis, and in the aqueous phase of the emulsion a catalyst which comprises (a) an ester of titanic or zirconic acid with a tertiary aliphatic amine carrying at least two b -hydroxyalkyl groups and (b) a water-soluble zinc or cadmium salt with an organic acid, and where (a) is a titanic acid ester, a tri-(b -hydroxylalkyl)-amine as a further component (c). The siloxanes used may contain Si-bonded saturated or unsaturated aliphatic or aromatic hydrocarbon radicals, H atoms or OH groups.  The alkanolamine titanates and zirconates (a) used are described in Specification 755,728 and Belgian Specifications 555,021, 558,728 and 595,878. Catalysts (b) specified are the Zn and Cd salts of formic, acetic, propionic and chloracetic acids. Preferably 2-7% of (a), 4-8% of (b) and 7-10% of (c) are used, based on the weight of the siloxane. Amino-plast pre-condensates may also be added.  The siloxane is subsequently heat-cured on the fibrous material. In a typical Example (1) an aqueous solution of triethanolamine zirconate and zinc acetate dihydrate was added to an aqueous silicone emulsion containing a liquid methyl hydrogen polysiloxane, xylene and, as emulsifier, a modified polyvinyl alcohol obtained by graft polymerization of polypropylene glycol with polyvinylacetate and subsequent hydrolysis. Specifications 792,593 and 792,594 also are referred to.ALSO:Fibrous materials are rendered water-repellent by impregnating them with a siloxane emulsion comprising a heat-curable organopolysiloxane and, as emulsifier, a polyvinyl alcohol or a modified polyvinyl alcohol obtained from a polyalkyleneglycol by graft polymerization with polyvinylacetate and subsequent hydrolysis, and in the aqueous phase of the emulsion a catalyst which comprises (a) an ester of titanic or zirconic acid with a tertiary aliphatic amine carrying at least two b -hydroxyalkyl groups and (b) a water-soluble zinc or cadmium salt with an organic acid, and where (a) is a titanic acid ester, a tri-(b -hydroxyalkyl)-amine as a further component (c), (see Division C3) drying the impregnated material at temperatures up to 110 DEG C. and subsequently heat-curing the siloxane at 120 DEG  to 200 DEG C. for up to 10 minutes.  In the examples a cotton poplin is treated in the above manner.  Specifications 755,728, 792,593, 792,594 and Belgian Specifications 555,021, 558,728 and 595,878 are referred to.
Patent GB-1024040-A (GB)
Title: Process for the production of halogen-substituted aromatic nitrogen containing heterocyclic compounds
Inventor: TARNOW HORST
IPC: C07D215/18
Filed: 1963-10-16
Abstract: Chlorinated heterocyclic nitrogen compounds are produced by chlorinating an aromatic compound of formula <FORM:1024040/C2/1> in which X is an alkyl, alkylene, chloroalkyl, or chloroalkylene radical all having 3 to 5 carbon atoms, at least 3 being in a straight chain, Y is an alkyl, chlorocarbonyl or organic acyl radical with up to 5 carbon atoms, Ar is an aryl, alkylaryl, nitroaryl, halogenoaryl, or a cyanoaryl radical with one free position ortho to the nitrogen atom, in a first step at 20 DEG  to 60 DEG  C. and then, with a gradual increase in temperature, in a second step at 200 DEG  to 250 DEG  C. The first step may be in an inert organic solvent, e.g. a chlorinated hydrocarbon.  The second step may take place under irradiation with ultra-violet light and in the presence of a halogen transfer catalyst, e.g. aluminium chloride or bromide, iron chloride, stannic chloride, boron trifluoride or titanium tetrachloride.  Chlorinated quinolines such as heptachloroquinoline are obtained where Ar represents a phenyl radical, Y represents an alkyl or alkenyl radical with up to 3 carbon atoms, a chlorocarbonyl or an acetyl radical, and X represents an n-propyl or isobutyl radical.ALSO:Chlorinated heterocyclic nitrogen compounds, especially chlorinated quinoline are used as herbicides or insecticides.  In an example, heptachloroquinoline is used in aqueous dimethyl-formamide containing a non-ionic emulsifier.
Patent GB-1529216-A (GB)
Title: Lateral bipolar transistor
IPC: H01L29/73
Filed: 1975-10-07
Abstract: 1529216 Lateral transistors NIPPON TELEGRAPH & TELEPHONE PUBLIC CORP 7 Oct 1975 [7 Oct 1974] 41003/75 Heading H1K In a lateral bipolar transistor having an emitter region Q2 and a collector region Q3 at the surface of a substrate base Q1, a surface region Q4 of higher conductivity than base Q1 extends between regions Q2 and Q3, and a region Q5 having a larger area than region Q4 and higher conductivity than base Q1 encompasses regions Q2, Q3 and Q4. In use of the device, an applied bias field between electrodes E 4  and E 3  localizes minority carriers in a channel H of the base Q1. The region Q5 also serves to electrically isolate the devices from other transistors which may be formed on the substrate.
Patent GB-928348-A (GB)
Title: Improvements relating to columns for supporting lamps for street lighting purposes
Inventor: FARMER EDWARD
IPC: B29C53/80
Filed: 1960-12-01
Abstract: A tubular lamp post is made of synthetic resin reinforced with stressed glass fibres arranged substantially longitudinally and substantially circumferentially in separate layers one over the other.  The glass fibres are arranged on a former being impregnated with resin between each layer of fibres, and the former with the fibres and resin thereon is inserted into a mould and compressed, the former and the mould being of tapering cross-section.  The post may include a split metal tube or a number of metal strips with hooks to which the fibres are anchored.
Patent GB-1087266-A (GB)
Title: Coded control apparatus
Inventor: BAILEY JOHN WILLIAM
Filed: 1964-10-09
Abstract: 1,087,266. Electric selective signalling. A. 0. SMITH CORPORATION. Oct. 9, 1964, No. 41370/64. Heading G4H. Correct positioning of rotary switches 32, 33, 34 and a switch 12 to correspond with a coded perforated card 11 permits actuation of a motor 1 for a petrol pump on closure of a switch 6. A correctly inserted card 11 closes a switch 22 and the perforations 29 are sensed by brushes 30 contacting a metal plate 31. Providing the switches 35 are correctly positioned all circuits to a winding 25 are open, a switch 8 remains closed and a relay 7 operates to be latched by a switch 7-2 and close a switch 7-1 to energize a solenoid 18 and close a switch 15 to operate the motor 1. The switch 15 is held closed for one revolution of the motor 1 by a cam 14 which also operates a switch 23 to open the relay 7 circuit and reset the apparatus. Incorrect setting of the switches 12, 32, 33, 34 provides a closed circuit for the winding 25 to open the switch 8 which is locked by a magnet 24. The switch 8 may be reclosed by operation of a switch 27 and a winding 26. After one rotation of the motor I the card 11 or brushes 30 are advanced one position to read the next line of perforations.