baber/WOPTO huggingface dataset:
Patent GB-1348907-A (GB)
Title: Process for producing synthetic resin film papers
IPC: C08L25/04
Filed: 1971-10-20
Abstract: 1348907 Paper-like films HITACHI CHEMICAL CO Ltd 20 Oct 1971 [21 Oct 1970] 48732/71 Heading B5B A synthetic resin film paper is made by extruding into film form a resin mixture comprising (i) 100 parts by weight of a styrene resin which is polystyrene, a styrene copolymer containing a major proportion of styrene, or a mixture of a major proportion of polystyrene or said styrene copolymer and a minor proportion of another amorphous polymer, and (ii) 2 to 45 parts by weight of a polyolefin resin which is polyethylene, polypropylene or polyvinylchloride and stretching the film in a first stretching step at a temperature at which the film will stretch and which is below a temperature 5‹ C. higher than the transition temperature # T  of said film. The term "polyolefin resin" is defined as including polyethylene, polypropylene and polyvinyl chloride. Desirably, the unstretched film is stretched to at least 1À3 times in the first stretching step, which is generally uniaxial, but may be multiaxial, as in a method exemplified where a flat film placed over the end of a cylinder is stretched by inflation. Second stage stretching may be effected at a temperature in the range from the transition temperature # T  of the film to a temperature 25‹ C higher than said transition temperature, and the film may be stretched to at least 1À3 times in each of the first and second stretching steps, the direction of the second stretching step desirably being in a direction perpendicular to that of the first stretching step. After either stretching step, the film may be heat treated at a temperature in the range from the transition temperature # T  of the film to a temperature 25‹ C. higher than said transition temperature. Film so made, on stretching, is lowered in density to form numerous fine voids within the stretched film and on the surface thereof, so that it is made opaque and white and acquires pencil writability and ink-receptivity.
Patent GB-1273020-A (GB)
Title: Improved valve
IPC: F16K39/02
Filed: 1969-10-03
Abstract: 1,273,020. Valves. BLAW-KNOX CO. 3 Oct., 1969 [4 Oct., 1968], No. 48831/69. Heading F2V. In a pressure-balanced valve 10, control of flow from an inlet chamber 12 to an outlet chamber 14 is achieved by means of a main valve member 50 which is hollow, open at one end, guided during movement by the interior walls of cylindrical members 20 and 28, and which is coupled, with lost-motion, to an operator stem 44. Cylindrical wall 20 has formed therearound a plurality of apertures 23 and is shaped to provide a main valve seat 22, there being interposed between the wall 20 and a partition wall 16 an annular compressible sealing ring 26. The topmost part 64 of the main valve member has extending therethrough a vent 80 and has formed therein a seat 70 for a second valve member 52 which is secured to the stem 44. In operation, the main valve member is retained in the fully closed position, i.e. that shown, without excessive force being applied to the stem 44 by virtue of a net pressure differential urging the member towards its seat 22, such differential acting on the underside of a flange 54 of the valve member and also within the valve member, the latter being consequent to inlet pressure entering the valve member interior via port 82. In order to open the valve, stem 44 is moved downwardly to so unseat the second valve member 52 and hence to equalize the pressure within the main valve member with that existing in the outlet chamber. The so reduced net pressure differential existing across the main valve thus permits the valve member to be moved away from its seat upon the application of a relatively small force to the stem 44. Subsequent to being unseated, the main valve member is maintained in abutment with a collar 94 on the stem 44, such abutment being ensured by the external shape of the valve member and hence by the consequential unbalanced pressure forces acting thereon.
Patent GB-1485020-A (GB)
Title: Apparatus for controlling the temperature of steel during hot-rolling on a continuous hot-rolling mill
IPC: B21B45/02
Filed: 1974-11-12
Abstract: 1485020 Cooling rolled products BETHLEHEM STEEL CORP 12 Nov 1974 [15 Nov 1973] 48953/74 Heading B3M A spray unit for cooling a rod or bar being rolled in a continuous hot rolling mill comprises two coolant spray chambers 50, Fig. 5, in tandem, each chamber having sets of spray nozzles 80 surrounding the workpiece 5 and having elongated bars 83 for protecting the nozzles from the workpiece. The bars, Fig. 3, may be of rectangular shape and are mounted on yokes 81 and 89. The nozzles are supplied with water (or other coolant) under a pressure of about 25 p.s.i. to about 60 p.s.i. from water headers formed in the upper and lower portions of the chambers. To maintain the workpiece in a desired horizontal pass line through the chambers, guide funnels 76 and 76<SP>1</SP> are provided at the exit ends of the chambers. Each funnel is vertically adjustable by either a pivoted arm 73 or eccentric shaft 74b. Spray units 50-53, Fig. 1, are located between the stands 22-27 of an intermediate train and between the stand 27 and a finishing train 28 with stands 29-32.
Patent GB-1485634-A (GB)
Title: Method for controlling the temperature of steel during hot-rolling on a continuous hot-rolling mill
IPC: B21B37/18
Filed: 1974-11-12
Abstract: 1485634 Rolling; making rod or bar; working at specified temperatures BETHLEHEM STEEL CORP 21 Nov 1974 [15 Nov 1973] 48954/74 Headings B3A B3M and B3V Steel wire, rod or bar, after heating to between 1950 and 2100‹ F., is reduced in a continuous hot rolling mill and cooled by water sprays during rolling such that its integrated mean temperature (i.e. the maximum heat it can attain by residual heating after cooling of its surface) is not greater than 1750‹ F. The work may be cooled between stands in an intermediate rolling train, and before reaching a finishing train. The method may be applied to steels such as A151 1040 and 8615 which may be rolled to ¢ dia. rod. The final microstructures reveals a uniform pearlite grain structure in a ferritic matrix, with a thin uniform deposit of scale on the rod approximately 1 to 2 mils thick.
Patent GB-1350002-A (GB)
Title: Guidance systems
IPC: F41G7/30
Filed: 1971-10-22
Abstract: 1350002 Missile guidance system SOC ANON DE TELECOMMUNICATIONS 22 Oct 1971 [22 Oct 1970] 49108/71 Heading H4D In a system for guiding a missile E, Fig. 1, to a target C, a ground control station O comprising Figs. 4, 5, an optical aiming sight 39 for directing at the target, and an optical missile tracker system, comprising an infra-red laser 10, having its beam amplitude modulated by an identifying oscillation from generator 24 in means 11 and directed towards the missile by a mirror 15. If the missile is caught by the beam, a reflector thereon directs part of the beam back to the ground station where mirror 15 directs it, via optics 16, 17 to a photo detector 21. The position of the missile within the beam and thus the position of the reflected infra-red image on the detector surface, is determined using a reticle 22 having alternate opaque and transparent sectors and having its centre rotated about the axis of the detector. The detector output is thus pulse frequency modulated in known manner, enabling the determination of the polar co. ordinates of the image on the detector. Such co-ordinates enable a computer 26 to furnish tracking signals for the mirror 15 via its servomotors 31, 32. The computer also determines the angle a between the line of sight to the target as given by aiming sight pick offs 29, 30-and encodes control information for the missile at 38, the coded information being transmitted to the missile by further modulation of the laser beam.
Patent GB-1357579-A (GB)
Title: Neutron and gamma flux detector
IPC: G01T3/00
Filed: 1971-10-25
Abstract: 1357579 Detecting neutrons ATOMIC ENERGY OF CANADA Ltd 25 Oct 1971 [19 Jan 1971] 49384/71 Heading G6P In a neutron and gamma flux detector, the emitter, 1, of platinum, cerium, osmium or tantalum, produces a prompt electrical current measured by the meter, 4, connected to the collector, 2. The latter is formed of a commercially available substance which produces a minimum activation, such as titanium, stainless steel, nickel and chromium base alloys. The metal splicing sleeve, 14, connects the collector and the coaxial cable, 12. The space between 1 and 2 is filled with insulating magnesium oxide powder.
Patent GB-1328403-A (GB)
Title: System of absorbing so2 gas in effluent gas stream
IPC: C01F5/42
Filed: 1970-10-19
Abstract: 1328403 Removing SO 2  from gases BABCOCK & WILCOX CO 19 Oct 1970 [15 Dec 1969] 49549/70 Heading C1A SO 2  is removed from gases by scrubbing with a solution containing Mg, precipitating hydrated MgSO 3  crystals from the solution, and thermally decomposing the crystals into MgO and SO 2 . The gases may initially be passed through an electrostatic precipitator or wet scrubber to remove solids, and cooled by spraying with water. Absorption of SO 2  may be effected at 150-160‹ F. Precipitation is effected by adding MgO or Mg(OH) 2  to produce crystals of size 75-300 Á., the solution being recycled to the absorption stage. The crystals may be preheated to 200‹ F. to dehydrate MgSO 3 .6H 2 O to MgSO 3 .3H 2 O, and then calcined at 1400-1800‹ F in a fluidized bed. Water vapour may be condensed from the gases and used to wash the crystals. The MgO may be slurrried with water and recycled, part to the absorption step and part to the precipitation step.
Patent GB-1167367-A (GB)
Title: Improvements in and relating to a 10-Cylinder Two-stroke Internal Combustion Engine
Inventor: NIELSEN JACOB HEDEGAARD
IPC: F02B75/02
Filed: 1966-11-04
Abstract: 1,167,367. Two-stroke engines. BURMEISTER & WAIN'S MASKIN-OG SKIBSBYGGERRI A.S. Nov.4, 1966 [Nov.9, 1965], No.49614/66. Heading F1B. The cylinders of a 10 cylinder in-line two stroke engine are arranged in two groups of five cylinders numbered 1 to 10, the angular differences between the cranks of the cylinders within each group being 72 degrees, and the firing order is 1-8-4-9-2-7-3-10-5-6 (or the reverse), the angular difference between the cranks for the cylinders 5, 6 being 39 degrees Œ 1¢ degrees. By this means the firing intervals are not uniform, being for example 39 degrees Œ 1¢ degrees between cylinders 1 and 8 and 33 degrees Œ 1¢ degrees between cylinders 8 and 4 and similarly for the remaining cylinders, and out of balance forces are reduced.
Patent GB-1382366-A (GB)
Title: Variable ratio transmissions
IPC: F16H3/72
Filed: 1972-10-27
Abstract: 1382366 Variable speed gear G A COTTON 27 Oct 1972 49624/72 Heading F2D One member of an epicyclic train is drivably connected to a worm 114 constituting the rotor or an hydraulic pump of which the inlet and outlet ports 124, 126 are of variable effective aperture whereby the resistance to rotation of the worm, and hence the effective ratio of the train, may be varied. In the gearbox described the planet carrier 56 of a first train is splined to an input shaft 14 and the ring gear 62 is drivably connected to the worm. The sun 60, which is rotatable on the input shaft, is integral with the sun 66 of a second train of which the planet carrier 68 is splined to the output shaft 54 and the ring gear 72 carries the sun 76 of a third 'train. The planet carrier 78 of the latter is splined to the output shaft 54 and the ring gear 82 is rotatable in a bearing 40. A tube 122 surrounding the pump housing 34 is connected by a cam 128, levers 130, 136, and a link 138 with a ring 108 which has cam grooves co-acting with balls 106. To establish forward drive, the tube 122 is turned a small amount such that the ring 108 is turned to cause the ball associated with the ring 72 to depress a plunger 98 into engagement with external ratchet teeth on the ring 72 to lock the latter. Further movement of the tube 122 restricts the inlet and outlet ports 124, 126 to reduce the speed of rotation of the worm 114 and ring 62 so that drive is transmitted to the sun 60 and thence through the sun 66 and planet carrier 68 to the output shaft. Movement of the tube 122 to the position in which the ports 124, 126 are fully closed, resulting in hydraulic locking of the worm and ring 62, causes the ball 106 associated with the ring 62 to lock that ring so that positive drive at a ratio greater than 1 : 1 is effected through the gearbox. Reverse drive is selected by turning the tube 122 in the opposite direction so that the ring 82 is locked by its plunger depressed by the ring 108, further turning of the tube closing the ports 124, 126 and locking the ring 62 as in the case of forward drive. Modifications are referred to in which the third epicyclic train is omitted and reverse ratio is provided for by making the ring gear of the second train selectively connectible directly to the output shaft 54 and the planet carrier selectively disconnectible from the shaft and prevented from rotating, and in which the third epicyclic train is replaced by a separately selectable reverse gear mechanism.
Patent GB-1470503-A (GB)
Title: Electrical apparatus
IPC: H01B3/00
Filed: 1974-03-19
Abstract: 1470503 Electrical stress-controlling compositions RAYCHEM Ltd 19 March 1974 [20 March 1973] 49724/76 Divided out of 1470501 Heading C3P Electrical apparatus comprises electrical stress relieving compositions comprising a polymeric material having dispersed therein a particulate compound selected from (a) compounds having a perovskite type crystal structure; (b) compounds having a spinel crystal structure other than γ-Fe 2 O 3  and spinel itself; (c) compounds having an inverse spinel crystal structure; (d) compounds having a mixed spinel crystal structure; (e) dichalcogenides of transition metal and tin; (f) AgI, Rochelle salt or other alkali metal tartrates, Prussian blue, compounds of formula XH 2 YO 4  where X is K, Rb or Cs and Y is P or As, ammonium fluoroberyllate, thiourea, ammonium sulphate and triglycine sulphate; and (g) Si 3 N 4 ; the composition containing at least 10% of the particulate compound based on the weight of the polymeric material and having a γ-value of at least 1À5 at least at some direct current stress between 0À01 kV/mm. and 10 kV/mm. The compositions may also contain particulate electrically conductive fillers and/or silicon carbide. They may be used in high voltage cable terminations and heating elements. Examples describe compositions comprising EP and EPDM rubbers, polyethylene, ionomer resins, ethylene/ethyl acrylate copolymers, vinylidene fluoride/hexafluoropropylene copolymers, chlorinated polyethylene and chlorosulphonated polyethylene; non-stoichiometric Fe 3 O 4 , Co 3 O 4 , strontium titanate, barium stannate, barium titanate, molybdenum disulphide, molybdenum ditelluride, molybdenum diselenide, silicon nitride, copper chromite, cobalt ferrite, Mn 3 O 4 , copper manganite, magnesium ferrite and zinc ferrite; and optionally finely divided carbon black, aluminium, copper, iron, manganese, chromium, lead, nickel, nickel/aluminium, zinc and silver.
Patent GB-1074919-A (GB)
Title: Multigrade engine oils
IPC: C10M101/02
Filed: 1965-11-24
Abstract: Multigrade oils comprise a mixture of (a) a de-waxed paraffin-based oil having a viscosity of less than 5 cs. at 100 DEG  C., a viscosity index of over 90 and a solidification point below - 15 DEG  C.; (b) naphthalene based oils having a viscosity above 5.6 cs. at 100 DEG C., a viscosity index between 45 and 65 and a solidification point below -35 DEG  C.; and (c) one or more viscosity index improving agents, e.g. polyacrylic esters; the ratio of (a) : (b) being between 1:5 and 1:1. The composition may also contain up to 20% of diesters or olefine polymers.
Patent GB-1362293-A (GB)
Title: Container closure
IPC: B65D45/32
Filed: 1971-10-29
Abstract: 1362293 Mats AMERICAN HOME PRODUCTS CORP 29 Oct 1971 [30 Oct 1970] 50432/71 Heading A4A [Also in Division B8] A recess 62 in the gasketed closure of a beverage can with a beaded rim (See Division B8) corresponding in size and shape to the bottom rim of the can permits the use of the closure as a supporting tray or coaster.
Patent GB-1413039-A (GB)
Title: Falt display system
IPC: H01J17/49
Filed: 1973-10-31
Abstract: 1413039 Matrix displays DAI NIPPON TORYO KK 31 Dot 1973 [2 Nov 1972 30 Dec 1972] 50621/73 Heading G5C [Also in Division H1] A display device comprises a plurality of display elements shaped as right angled isosceles triangles. The elements may be formed of crossed arrays of conductors 40, 42 each comprising interconnected triangles with electroluminescent, cataphoretic, liquid crystal material or ionizable gas between the arrays. Gas discharge lamps may be arranged in triangular compartments behind a light scattering screen. L.E.D's; materials exhibiting Kerr and Faraday effects and energization by heat and magnetic fields are referred to.
Patent GB-1334149-A (GB)
Title: Apparatus for steam-drying filter cake
IPC: B01D33/00
Filed: 1971-11-01
Abstract: 1334149 Rotating auger dryer ENVIROTECH CORP 1 Nov 1971 [30 Oct 1970] 50689/71 Heading F4G [Also in Division B1] Filter cake from a rotary filter (Fig. 2) is fed into hopper 420 at one end of a perforate trough 400, and oppositely handed augers 414 and 416 of different diameters are rotated on a common shaft 402 to effect stirring and a net movement of cake along the trough to outlet end 424. Air is blown into space 440, Fig. 18, and thence upwards through the trough floor and through the cake thereon to remove moisture therefrom. The air is discharged through outlet 450, which may lead to extraction fans. The bottom of the trough is covered by filter cloth 432.
Patent GB-1338084-A (GB)
Title: Magnetic escapement
IPC: G04C5/00
Filed: 1970-10-27
Abstract: 1338084 Clock; escapements MATSUSHITA ELECTRIC WORKS Ltd 27 Oct 1970 [15 Nov 1969 18 Nov 1969 21 Nov 1969] 50889/70 Heading G3T A magnetic escapement comprises an escape wheel 3 and an oscillator 1, the coupled parts of the wheel and oscillator having substantially parallel directions of motion and the escape wheel being coupled to a drive-transmitting spring 11. The escape wheel is fixed to a shaft 6 and is driven by a rotor 4 via the spring 11. The rotor is loosely mounted on the shaft 6 which also carries a worm 22 driving a gear train 23, 24. A fixed coil assembly 5 for driving the rotor 4 comprises a detecting coil 27 and a tapped driving coil 28, see Fig. 1B. The coil circuit comprises a driving transistor 29, the base current of which is stabilized by means of a compensating transistor 30 and a temperature sensitive element 33 against fluctuations due to changes of load or ambient temperature. The oscillator 1 is of W-shape and is mounted at its centre of gravity 17 on a support 8 which carries a weight 9 for damping asymmetric vibrations of the oscillator tines. The tines carry a weight 2' and a permanent magnet 2 which cooperates with radial teeth 36 of the escape wheel 3. Adjustment of the clock rate is carried out by means of a screwed rod 35 carrying a magnetic member 34 to influence the magnet 2. For starting, a lever 21 is used to flick a gear 13 fixed to the shaft 6 and a sleeve portion 12' fixed to the rotor 4. An alternative arrangement is envisaged in which the spring 11 is between the escape wheel 3 and the output shaft 6.
Patent GB-1197446-A (GB)
Title: Detergent Composition
Inventor: FRANCKE ANDRIES
IPC: C11D3/386
Filed: 1966-11-14
Abstract: 1,197,446. Detergent composition. UNILEVER Ltd. 13 Nov., 1967 [14 Nov., 1966], No. 50998/66. Heading C5D. A dish-washing composition having a pH of 7-9 at a concentration of 3 g/l in aqueous solution comprises (a) 0À5-90% by weight of an organic detergent which may be an anionic, nonionic or cationic detergent or a soap or a mixture thereof, (b) 1-80% by weight of a water-soluble builder salt which may be an alkali metal condensed phosphate, silicate or per salt such as sodium perborate, and (c) amylolytic enzymes of micro-organism origin in an amount such that the composition has an amylolytic activity of 10<SP>4</SP>-10<SP>6</SP> maltose units per kilogram.
Patent GB-1377217-A (GB)
Title: Supported lithium phosphate catalyst and use thereof in the  production of alkenols from alkene oxides
IPC: B01J27/18
Filed: 1971-11-03
Abstract: 1377217 Catalysts comprising lithium phosphate DEUTSCHE GOLD-UND SILBERSCHEIDEANSTALT 3 Nov 1971 [3 Nov 1970] 51037/71 Heading B1E [Also in Division C2]  Catalyst for use in the conversion of alkene oxides to alkenols comprises lithium phosphate having a grain size below 0.1 mm coated on inert support material having a particle size between 1 and 20 mm. The support material may be in the form of moulded elements, such as spheres, having a smooth, rough or fluted surface, for example spheres having a fluted surface and a diameter between 1 and 10 mm.; specified support materials are alpha-alumina, porcelain, quartz and silicon carbide. The lithium phosphate may be in admixture with filler material, for example in an amount of up to 50 parts by weight per 100 parts by weight of lithium phosphate; specified filler materials are active carbon, kieselguhr, asbestos and talc. The catalyst may be prepared by a  procedure wherein lithium phosphate is applied to support material either in the absence of liquid with subsequent application of liquid to the coated support material or in the presence of liquid, for example by the use either of moist lithium phosphate or of dry powdered lithium phosphate with application of liquid to the lithium phosphate and/or the support material at the time of application of the lithium phosphate to the support material; the liquid may be water and/or a water-miscible organic liquid, for example methenol or ethanol. The lithium phosphate coating may have a thickness of 0.1-2.0 mm and may be in the form of superposed layers. As exemplified, catalyst is prepared by a procedure wherein spheres of alpha-alumina having a rough surface and a diameter of 3-4 mm are rolled in powdered lithium phosphate, sprayed with water and dried.
Patent GB-512007-A (GB)
IPC: C10M141/02
Abstract: 512,007. Lubricants. TEXACO DEVELOPMENT CORPORATION. June 23, 1938, No. 18651. Convention date, July 9, 1937. [Class 91] An extreme pressure lubricant suitable for hypoid gears is made by subjecting a heavy mineral oil to the action of sulphur at temperatures of 350 to 400‹F., so that the sulphur is sufficiently loosely bound to have its extreme pressure properties, but sufficiently bound to avoid precipitation on storage, and then incorporating lead naphthenate into the product at an elevated temperature below 250‹F. so as to avoid formation of lead sulphide, but to ensure a stable homogeneous product. Preferably the oil and sulphur are heated for three hours to 350-375‹F. and the lead naphthenate added at 220-250‹F. The preferred proportions are 1-3 per cent. by weight of sulphur in loosely combined form and 1-5 per cent. by weight of lead naphthenate.
Patent GB-1396432-A (GB)
Title: Electric vehicle
IPC: H02K41/025
Filed: 1972-11-07
Abstract: 1396432 Electric rail-vehicles HITACHI Ltd 7 Nov 1972 [12 Nov 1971] 51332/72 Heading B7L [Also in Division F2] An electric vehicle is supported on at least one undercarriage comprising adhesion-driving wheelsets 14 powered by electric motors 21 and an idler wheelset 14<SP>1</SP> which at least partly supports the weight of the vehicle-borne part or parts 17, 17<SP>1</SP> of an adhesionless driving or braking system (e.g. linear motor or eddy current brake) which co-operate(s) electromagnetically with track rails or a track-borne stator to drive or brake the vehicle. The height of the part(s) 17, 17<SP>1</SP> above the track is adjusted by means of shock absorbing springs 24, 24<SP>1</SP> controlled by an axle spring deflection detector 23. In an alternative embodiment the vehicle body is supported on three undercarriages whereof the outer two have normal adhesion drives and the central has idler wheelsets supporting the vehicle-borne part of the adhesionless system.