baber/WOPTO huggingface dataset:
Patent GB-1241261-A (GB)
Title: Improvements in and relating to optical printing
Inventor: BARBIERI SIEGFRIED
IPC: G03B27/73
Filed: 1969-10-09
Abstract: 1,241,261. Photographic printing apparatus. DURST A. G. Oct. 9, 1969 [Oct. 9, 1968], No. 49598/69. Heading G2A. In photographic projection printing apparatus there are provided two alternative methods for determining and controlling the quantities of light of the three primary colours in the optical printing of a transparent coloured original. Simultaneous Integral Measurement. A measuring head 15 contains three photo-cells (not shown) each sensitive to a different primary colour, and the head is positioned in the solid line position shown, while light filters 4-6 are drawn out of the path of the beam from a projection lamp 2, which is switched on. Light therefrom reaches the original 12 via a mirror 8 and condensers 9, 10, and from the original passes through an objective 13 and a semi-reflecting mirror 16 on to the printing material (not shown). The mirror 16 reflects a small proportion of the light rays from all over the original on to an opal disc 17, whence they fall diffusely on to the three photo-cells. The resulting photo-electric currents are then effectively stored, the appropriate colour filter being moved into the beam from the lamp 2 when sufficient light of one primary colour has fallen on the printing material. In time the other two colour filters will also be moved into the beam from the lamp 2. The sensitivity of the photo-cells must be matched to that of the printing material. Sequential Point Measurement. The measuring head 15 is moved to its dotted line position. Light rays from a small region of the original are received by the photo-cells via a flexible light conductor 24, and the intensity of this light is compared in turn with that of light rays from lamps 18-20, each emitting light of a different primary colour, the intensities of each lamp 18- 20 being individually variable. The intensities are adjusted until the ratios therebetween are the same as those in the light transmitted by the small region of the original. This completes the colour balancing. However, the sum of the intensities of light from the lamps 18-20 must be adjusted so that the luminous intensity of the light falling on the photo-cells in the head 15 is the same as it would be if the head 15 were in the printing light ray path. This is achieved by moving the head 15 to its solid line position, measuring the current in one photo-cell, returning the head 15 to its right-hand position and adjusting a mirror 22 and an apertured diaphragm 27 until the current previously measured reaches the same value. The light conductor 24 is moved away and the exposure begun. The photo-cells, as a result of incidence thereon of light from lamps 18-20, cause the filters 4-6 to be introduced into the beam from the lamp 2 at the appropriate times. A fixed baseplate 23 prevents stray light from the lamps 18-20 reaching the printing material.
Patent GB-1441976-A (GB)
Title: Process for preparing pharmacologically active 1-aryloxy-2- propanolamines
IPC: C07D303/22
Filed: 1973-10-31
Abstract: 1441976 Aryloxypropanolamines LABORATORIOS LIADE SA 31 Oct 1973 [20 Feb 1973] 50573/73 Heading C2C 3 - Phenoxy - 2 - hydroxypropylamine salts in which the benzene ring and amino group may be mono- or disubstituted (including compounds in which the nitrogen atom forms part of a heterocyclic group) are prepared by reacting the appropriate phenol with epichlorohydrin in the presence of a catalyst at 70-100‹ C. for 10-20 hours, treating the reaction mixture with sodium hydroxide solution for 24 hours, extracting with chloroform, isolating the phenoxymethyloxirane and reacting it with ammonia or the appropriate amine in ethanol or tetrahydrofuran, followed by salt formation. These compounds are (3-adrenergic blocking agents.
Patent GB-1173849-A (GB)
Title: Improvements in or relating to Sampling Devices for Liquid Metal
Inventor: LADLOW ANSELM
IPC: G01N1/12
Filed: 1968-10-30
Abstract: 1,173,849. Sampling devices. LAND PYROMETERS Ltd. 30 Oct., 1968, No. 51346/68. Heading B8N. [Also in Division C7] A sampling device consists of a metal mould 1, mounted in the end of a holder tube 4 of insulating material, e.g. cardboard, with the closed end of the mould 3 towards the end of the support tube 4, a slot or hole 5 being cut in the holder tube 4 at a point above the open end of the mould. The slot may be temporarily blocked by a ring 6, of aluminium or mild steel or covered by one or more layers of adhesivecoated paper. A second slot 5A may be provided in the holder tube further away from the mould than the first slot or hole.
Patent GB-1385923-A (GB)
Title: Apparatus for collecting flushing liquor and gases from a coke oven battery
IPC: C10B27/06
Filed: 1972-11-09
Abstract: 1385923 Flushing liquor and gas collecting apparatus KOPPERS CO Inc 9 Nov 1972 [27 Dec 1971 21 April 1972] 51860/72 Heading C5E Apparatus for collecting flushing liquor and gases from a coke oven battery 13 comprises a plurality of ascension pipes 15 each connected to a coking chamber and via an elbow 17 to a gas collecting main 11 comprising two longitudinally extending zones 41, 47 one of which communicates with a suction main 19 and the other having a sump 39, and a pivotally mounted flushing liquor seal valve 23 which when in the first and second (B and C) of three possible positions (A, B, C), directs flushing liquor and gases from the ascension pipe into one or other of the zones, and in the third position (A) cooperates with the elbow to collect flushing liquor to form a liquid seal and close the elbow. The gas collecting main may be a conduit divided into the zones by an elongate baffle 21. The seal valve may be mounted in the elbow as at 25. Spray nozzles may be provided in one of the zones to cool the gases.
Patent GB-1391417-A (GB)
Title: Gauge for use with a pressure vessel
IPC: G01L7/08
Filed: 1971-11-09
Abstract: 1391417 Pressure gauges W H BRAMALL & CO Ltd 12 Sept 1972 [9 Nov 1971] 51924/71 Heading G1L A pressure gauge 10 for fitting to a pressure vessel such as a fire extinguisher comprises a sleeve 11 connectible to the vessel, a deformable diaphragm 16 and a gauge movement housed in the sleeve, the movement, housed in body 18, having a spring-loaded finger 22 normally contacting the diaphragm but being movable limitedly away from it to check that the gauge movement is not jammed. When the mounting ring 27 of transparent window 28 is unscrewed from the sleeve, the body 18 housing the movement moves away from the diaphragm guided by a mounting screw 31 and the pointer 21, being now subject to no force from the diaphragm, should return to a zero reading thereby indicating that the gauge is functioning correctly.
Patent GB-1057240-A (GB)
Title: Improved arrangement for testing high voltage insulators
Inventor: BAKER WILLIAM PERCIVAL
IPC: G01R31/12
Filed: 1964-12-22
Abstract: 1, 057, 240. Dielectric loss measurements. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Nov.30, 1965 [Dec. 22, 1964], No.52054/64. Heading G1U. Apparatus for testing a hollow insulator 1 comprises a probe consisting of a pickup electrode 9 and a dielectric lens 5 fitting an open end 6 of the insulator and forming a capacitive series section of a path to a high voltage conductor 2 at the other insulator end. A pulse train generator 13 is connected between an amplifier 11 and the probe, so that the amplifier output measures the difference between the energy produced by the generator and the energy lost through discharges in the path through the insulator. The lens 5 may be made of polymethyl methacrylate. The probe is insulatingly mounted on a portable base plate which has a handle 7. The base plate is earthed. A cathode ray tube 12 is connected to the amplifier output to provide an indication of the measuring result.
Patent GB-1119170-A (GB)
Title: Method and apparatus for coating moving carrier webs with a layer of plastics material
IPC: D06N7/00
Filed: 1966-11-22
Abstract: 1,119,170. Coating moving webs. CONTINENTAL GUMMI-WERKE A.G. 22 Nov.. 1966 [23 Nov., 1965], No. 52141/66. Heading D1L. A moving carrier web 5 is coated with a layer of plastics material by applying the plastics material in the form of a web 13 of lesser thickness than the desired coating layer and displaced at a greater linear speed than that of the carrier web in the same direction as the carrier web. The prior drawing out of the coating material into a relatively thin web results in increased diffusion with the atmosphere of air bubbles entrained in the mixture and so prevents faulty points occuring in the coating layer due to air bubbles. The carrier web is moved by a conveyor 1 beneath a fixed doctor blade 2. Arranged in series with the conveyor is a drum 8, rotating in the direction of the arrow at a faster speed than the conveyor and dipping into a container 10 holding coating plastics material. An adjustable doctor blade 9, spaced at a lesser distance from the drum 8 than is the doctor blade 2 from the carrier web surface draws out the material into a thin layer which is conveyed as a web 13 via a baffle 14 from drum 8 to delivery position A of the conveyor 1. Due to the relative speeds mixture accumulates in front of blade 2.
Patent GB-1434117-A (GB)
Title: Method and apparatus for the connection of plastic pipes
IPC: B29C65/48
Filed: 1973-11-10
Abstract: 1434117 Pipe couplings CRW CHEMIEROHRWERK ING PROCHASKA GmbH & CO KG 10 Nov 1973 52274/73 Heading F2G An externally tapering segmentary sleeve, which may consist of two semi-cylindrical parts 1, 2, is coated internally and externally with adhesive and held by a locking sleeve 5. The internal taper of sleeve 5 enables it to exert radial pressure on parts 1 and 2, so as to distribute the adhesive evenly and to remove the air bubbles from it. The ends of the pipes abut a stop 8.
Patent GB-1084979-A (GB)
Title: Improvements in or relating to synthetic potato flavo crisps
Inventor: YEE FREDERICK KOON SAI
IPC: A23L19/18
Filed: 1964-12-24
Abstract: An artificial potato chip food product is produced by frying slices of a raw intermediate product, which product is resistant to spoilage and deterioration under normal storage conditions for indefinite periods of time and comprises an intimate mixture of tapioca flour, a potato product selected from the group consisting of potato granules, potato flour and ground potato flakes, salt and betwen 7% and 11% of water by weight of the intermediate product.  The potato content of the product is such that the ratio of tapioca to potato is from 8 : 1 to 3 : 1.  The dry ingredients, optionally including baking powder, flavouring and colouring, are mixed to a dough with hot water, formed into cylindrical rolls, cooked in a steam oven, cured for 48 hours, sliced into wafers and dried to a water content of 7-11% by weight. The dried intermediate product is fried in vegetable oil, salted while still hot, cooled and packed.  The fried product has a lower calorific value than conventional potato chips.
Patent GB-1445649-A (GB)
Title: Powder paints containing particulate material
IPC: C08G59/32
Filed: 1974-12-06
Abstract: 1445649 Powder paint compositions FORD MOTOR CO Ltd 6 Dec 1974 [6 Dec 1973 (3) 16 Sept 1974 (3)] 52972/74 Heading C3B and C3P A powder paint comprises a particulate film forming resin and, as a pigment, metal particles individually encapsulated in 2-200% of their weight, of a thermosettable film forming resin. Additional pigment may be present to impart colour to the composition. The examples relate to aluminium flakes. The encapsulating resin may be the same as the film former. All the examples except one (No. 47) relate to the use of glycidyl (meth)acrylate copolymers with other ethylenically unsaturated monomers which may be self-crosslinking, i.e. contain acid or anhydride group containing monomers or may be cross-linked with monomeric or polymeric acids, anhydrides or polyhydric phenols. Example 47 is concerned with a hydroxyl group containing acrylic polymer cross-linked with a hexamethoxymethylolmelamine. The composition may additionally contain nickel powder, conventional flow control agents and cross-linking catalysts, e.g. quaternary ammonium salts.
Patent GB-1274660-A (GB)
Title: Vibration detector
Inventor: SKIPP BRIAN OPENSHAW
IPC: G01H1/00
Filed: 1968-11-08
Abstract: 1,274,660. Transistor amplifying circuits. SOIL MECHANICS (EQUIPMENT) Ltd. 5 Jan., 1970 [8 Nov., 1968], No. 53108/68. Heading H3T. [Also in Divisions G1 and G4] An amplifying arrangement comprises transistors TR1, TR2, TR3, the transistors TR1, TR2 being connected as a feed back amplifier and TR3 acting as an emitter follower to provide a low impedance output. The arrangement has an extended low frequency response, is linear over its range and is insensitive to supply voltage variations.
Patent GB-1098237-A (GB)
Title: An improvement in or relating to spiral bevel gears
Inventor: HARRISON GEORGE WILLIAM HORNCY
IPC: F16H55/08
Filed: 1965-12-14
Abstract: 1,098,237. Toothed gearing. DAVID BROWN GEAR INDUSTRIES Ltd. Dec. 30, 1966 [Dec. 14, 1965], No. 53124/65. Heading F2Q. A spiral bevel gear has teeth of circular arc profile which are made conjugate to a basic crown wheel wherein the lines of intersection between the tooth flanks 11 and the pitch plane are involutes to a base circle 12 concentric with the crown wheel. In any section normal to the tooth spirals, for example along lines 13, 14 or 15, the tooth profile and pitch are constant. Spiral bevel gears having teeth of convex circular arc profile, conjugate to a basic crown wheel having teeth of concave circular arc profile, will mesh with spiral bevel gears having teeth of concave circular arc profile, conjugate to a basic crown wheel having teeth of convex circular arc profile, provided that the base circle diameters and the normal pitches of the two basic crown wheels are the same.
Patent GB-1415679-A (GB)
Title: Gas turbine engine powerplant
IPC: F02C9/16
Filed: 1972-11-17
Abstract: 1415679 Gas turbine engines ROLLS-ROYCE (1971) Ltd 7 Nov 1973 [17 Nov 1972] 53160/72 Heading F1J The invention relates to a gas turbine engine which is adapted to operate either as a gas turbine jet engine or as a by-pass or ducted fan type engine. The engine comprises a first air compressor means 13 and a second air compressor means 14 between which compressors are disposed two series of ducts 20 and 21 which are movable such that in a first position of the ducts, 20A and 21 A, air from the first compressor 13 passes to the second compressor 14, the engine then operating as a gas turbine jet engine; while in a second position of the ducts, 20B and 21B, air from the first compressor 13 passes through the ducts 20B to the manifold 16 and thence through an outlet 17 in the nacelle to atmosphere, and air is taken from atmosphere through inlet 19 and ducts 21B to the second compressor 14, the engine then operating as a bypass type engine. The ducts 20, 21 are disposed alternately in an annular assembly, each duct 20 being pivotably mounted at a point 22 at the upstream end and being movable by an actuator 23, and each duct 21 being pivotally mounted above its downstream, outer end at 24. The openings 17 and 19 in the nacelle have associated doors which are closed when the engine is operating as a straight-through engine. In the embodiment the two compressors 13 and 14 are the two stages of an LP compressor, the engine comprising also an HP compressor, combustion equipment, an HP turbine and an LP turbine and an exhaust gas propulsion nozzle.
Patent GB-1089417-A (GB)
Title: Grinding mills
Inventor: BISCHOF GUNTHER
IPC: B02C2/10
Filed: 1965-12-15
Abstract: 1,089,417. Conical mills. MASCHINENUND MUHLENBAU WITTENBERG VEB. Dec. 15, 1965, No. 53177/65. Heading B2A. [Also in Division A2] A mill comprises a rotatable cone 5 and a sieve 6 around which are uniformly arranged several rubber brake members 1 each connected, by means of rods 2 and nuts 3, to a spindle 4 provided with a sprocket 7, the sprockets being interconnected by a chain 8 so that the members 1 can be simultaneously adjusted by means of a hand wheel 9. Each sprocket may be replaced by a roller and the chain by a belt, rope or cable. Alternatively, the spindles may be interconnected by gears or friction wheels.
Patent GB-1480925-A (GB)
Title: Flame-retardant textile compositions
IPC: C09K23/34
Filed: 1974-12-10
Abstract: 1480925 Hexabromobutene-2 emulsions TENNECO CHEMICALS INC 10 Dec 1974 [10 Dec 1973] 53422/74 Heading B1V [Also in Division Dl] An emulsion suitable for use as a flameretardant for textile materials is prepared by a) dissolving 1, 1, 2, 3, 4, 4-hexabromobutene-2 in an N-alkyl-2-pyrrolidinone in which the alkyl group has 1-5 carbon atoms to form a first solution containing 15-50% by weight of hexabromobutene-2, b) diluting the first solution with an aromatic hydrocarbon to form a second solution containing 5-25% by weight of hexabromobutene-2 in a solvent mixture containing, by weight, 1-5 parts of the aromatic hydrocarbon per part of N-alkyl-2-pyrrolidinone and c) mixing the second solution with a non-ionic emulsifying agent and water to form an emulsion.
Patent GB-1106938-A (GB)
Title: Fluid dynamic drag reduction
IPC: B64C23/00
Filed: 1965-12-17
Abstract: 1,106,938. Boundary layer control. AMERICAN RADIATOR & STANDARD SANITARY CORPORATION. 17 Dec., 1965 [2 Aug., 1965], No. 53579/65. Heading F2R. A vehicle, which may be an aircraft, air cushion vehicle or road vehicle, formed with a bluff rear end face (e.g. a planar trailing edge surface of a supersonic wing or the rear wall of a vehicle body) is formed around the periphery of such rear end face with a slot which extends substantially continuously is connected to a lowpressure plenum chamber whereby boundary layer air is drawn off to reduce the turbulent wake and resulting form drag. Various profiles of slot are described.
Patent GB-536380-A (GB)
IPC: D01D1/10
Abstract: 536,380. Artificial filaments. DU PONT DE NEMOURS & CO., E. I. Nov. 10, 1939, No. 29842. Convention date, Nov. 10, 1938. [Class 2 (ii)] Artificial filaments are spun from a molten organic composition by extrusion immediately after the composition has been passed through finely divided inert material of varying particle size, arranged in order of diminishing particle size in the direction of flow. The inert material, which may be sand or metal filings, is contained in the bore of the tube 20 held in the bushing 14 screwed in the base 11 provided with a duct 12 for the entry of the molten composition. The lower end of the tube 20 in the arrangement shown in Fig. 1 carries the spinneret cap 25 the flange 19 of which is held against the tube 20 by the shouldered plate 15 secured by bolts 16 to the bushing 14. Fine meshed screens 28, 29 are cupped over the end of the tube 20 and a coarse meshed screen 30 rests on the spinneret cap 25. Fine and coarse mesh screens 23, 24 rest on a ledge in the tube 20. Tight joints in the apparatus are secured by the gaskets 21, 27. The sand in the tube 20 is in several strata A, B, C, D, the lowest stratum A having the smallest particle size. The molten composition is forced through the duct 12, the filtering sand and screens, and then extruded through the spinneret cap 25. In the modification shown in Fig. 2 the spinneret plate 34 is of the disc type and the screens 36, 38 above it are held in the annular frame 40. The upper face of the spinneret plate may have grooves to distribute the molten composition evenly to the orifices. Various combinations of screens having meshes of differing sizes are described. The molten composition employed may be a synthetic linear polyamide such as polyhexamethylene adipamide. Specifications 461,236, 533,307 and 535,186 are referred to.
Patent GB-1130133-A (GB)
Title: Improvements in or relating to fluid flow control
IPC: A01C23/02
Filed: 1965-12-20
Abstract: 1,130,133. Controlling fluid flow in fertilizer distributers, DECATUR FOUNDRY & MACHINE CO. Inc. 20 Dec., ,1965 [30 Dec., 1964], No. 53810/65. Heading A1D. Anhydrous ammonia is injected directly into the soil by knives 201 (Fig. 3 not shown) fed from a tank 197 via a flow control device 30 which operates to deposit a predetermined amount of the liquid anhydrous ammonia on to a unit of ground regardless of the pressure in the tank and of the speed of travel of the knives. The liquid is fed into the flow control device 30 through the fitting 181 from whence it passes over diaphragm 75 to a metering pin 167. From this pin the liquid passes through passageway 186 to the other side of the diaphragm and into bore 90 with exit passage 94 which feeds a distributer supplying the knives. The metering pin is adjustable and is calibrated. The amount of liquid passing through the device is controlled by a valve 80 fixed to the diaphragm but movable to restrict the opening to the bore 90 and exit 94. This valve is moved by the action of a centrifugal governor 34 which is driven from a ground wheel of a carriage via a pulley 54. The valve 80 can be closed by manual movement of a spring-biased, ratchet-operated, cam member 118 to depress the stem 110 of the diaphragm. To compensate for loss of pressure area on the diaphragm because of the valve 80 there is a piston 100, on the opposite side of the diaphragm, moving in a bore 103 in communication with the bore 90.
Patent GB-1253675-A (GB)
Title: Improvements relating to electro-chemical cells for gas analysis
IPC: G01N27/416
Filed: 1968-11-15
Abstract: 1,253,675. Electro-chemical cells. BAILEY METER CO. Nov. 15, 1968 [Nov. 15, 1967], No. 54382/68. Heading G1N. In an electro-chemical cell for determining the oxygen content of a gas, a tube 20 of solid electrolyte, e.g. zirconium oxide, has a porous platinum electrode 24, 26 bonded on each of its inner and outer surfaces, the temperature at the electrodes being maintained constant by a thermostat 41, 43, 42, the gas to be analyzed is passed into the tube 20 via tube 7 and a reference gas is passed outside the tube via passage 44 between adapter 34 and housing 32. A platinum lead 25, 27 extends from its respective electrode and is contacted by contacts 52, 50 respectively, the output from these contacts, due to different oxygen concentrations at the electrodes, being applied to a meter, to give a direct reading of the percentage oxygen concentration in the analyzed gas. The flow of the gas to be analyzed is preferably regulated.
Patent GB-1456650-A (GB)
Title: Injection gun
IPC: A61M5/315
Filed: 1973-11-23
Abstract: 1456650 Syringes A COLOMBO and L BARBAGLIA 23 Nov 1973 [25 Nov 1972] 54562/73 Heading A5R A dental injection gun comprises a handle 16, with a trigger 12 pivoted via a bracket 9 to a lug 5 located around a transversely ringed pusher 6 acting on the piston of a syringe 1 located in a slotted holder 2, trigger 12 when pulled towards handle 16 causing the lug to move against the bias of a torsion spring around pivot 7 from the position shown through a position in which lug 5 extends perpendicularly to the longitudinal axis of pusher 6, thus moving the pusher 6 stepwise against the action of pins 15 biased by leaf springs 14 and which project laterally through holder 2 to engage a ring on the pusher. On release, the trigger 12 is acted upon by a leaf spring 17 in the handle via a rod 20 to move the pusher away from the syringe piston. Knob 8 permits longitudinal adjustment of the pusher and prevents the latter passing completely through lug 5.
Patent GB-1440632-A (GB)
Title: Electronic timepiece
IPC: G04G9/00
Filed: 1973-11-27
Abstract: 1440632 Electronic watches SUWA SEIKOSHA KK 27 Nov 1973 [18 Dec 1972] 54932/73 Heading G3T In a battery powered electronic timepiece, e.g. a watch, having a digital display of light-emitting diodes in 7-bar segment arrays, to reduce battery consumption it is arranged that the digits of the time are sequentially energized and further - that the segments are also sequentially energized, no two segments being in an energized state at the same time instant. Energization is at a frequency of at least 32 Hz, the arrangement relying on persistence of vision of the human eye.