baber/WOPTO huggingface dataset:
Patent GB-1007963-A (GB)
Title: Improvements in or relating to the separation of minerals from materials
IPC: B04C5/14
Filed: 1964-09-30
Abstract: 1,007,963. Cyclone separators. T. HORUICHI. Sept. 30, 1964 [Oct. 8, 1963 ; Feb. 18, 1964], No. 39841/64. Heading B2P. A mixture of materials is separated into components of different densities by feeding the materials in suspension in a fluid inert to the materials tangentially and under pressure into the partially closed lower and wider end 22 of an inverted cyclone separator 1 so as to discharge from the upper end 11 and the lower end 22 the heavier and lighter components 19, 18 respectively together with a certain amount of the fluid. The latter may then be drained or washed from the separated components and re-used. The material and the fluid, which may be loaded with very finely ground material, are fed from hoppers 14, 15 through a pipe 2 terminating in a nozzle 3. The upper part 11 of the separator has an aperture 111 for the discharge of the heavier components 19 into a surrounding cylindrical vessel 12 and is closed at its upper end by a cap 10 through which extends the upper part of an inverted funnel 9 which may be vertically adjustable to ensure discharge of the largest pieces of the heavier components.
Patent GB-893287-A (GB)
Title: Improvements in operating arrangements for on-load transformer tap-changing switches
Inventor: BOOKER FRANK
IPC: H01H9/00
Filed: 1958-12-10
Abstract: 893,287. Regulating switches. GENERAL ELECTRIC CO. Ltd. Dec. 10, 1959 [Dec. 10, 1958], No. 39854/58. Class 38 (5). An operating mechanism for an on-load transformer top-changing switch comprises a driving member 8 connected to a lever 1 which is pivoted at 2 and carries a roller 4 engageable with a slot 14 in a segment 12 of a Geneva mechanism. Movement of member 8 in either direction from the Fig. 1 position causes counter-clockwise movement of lever 1 so that segment 12 and a lever 11 fixed thereto are rotated clockwise about a shaft 10 to stretch a spring 17 connected between lever 11 and a lever 15. The latter is fixed on the shaft 10 which is connected to the contacts. The lever 15 is held against a stop 19 by a latch 21 until, when the segment 12 has moved through 90 degrees, the lever 11 is in line with lever 15 and the spring is in its dead-centre position, and latch 21 is released by lever 11. The spring is then caused to go over centre by (1) the use of spring-loaded contacts, or (2) the use of spring-loaded stops 19, 20 (Fig. 5, not shown). Positive actuation is given, if the spring breaks, by the co-operation of abutments 5, 6 on lever 1, with a roller 27 on an arm 28 fixed to shaft 10. In a modification (Figs. 6, 7, not shown), these abutments are in the form of plungers which are loaded by springs which are stronger than the combined strength of four springs which replace spring 17. In this arrangement, the plunger springs give the kickoff from dead centre, assisted by the four springs.
Patent GB-1124813-A (GB)
Title: Improvements relating to the manufacture of paper tubes
IPC: B31C3/00
Filed: 1965-09-17
Abstract: 1,124,813. Helically-wound tubes. I. SATO. 17 Sept., 1965 [26 April, 1965]. No. 39863/65. Heading F2P. A method of making a paper tube comprises helically winding one or more tapes 2 and 3 around a mandrel 1 by means of an endless belt 4 rotating in one direction around the mandrel to form a cylinder a, cutting the cylinder to length at 5, and, without removing the cut cylinder b from the mandrel, rotating the cut cylinder in the opposite direction by means of an endless belt 6 in order to helically wind on further tape or tapes 7 and 8 so as to cross the first wound tape or tapes. In modifications, Figs. 4 and 5 (not shown), a tape 8<SP>3 </SP>is fed to the mandrel ahead of a belt 6<SP>3</SP> driving the cut cylinder. In a similar embodiment, Fig. 6 (not shown), the belts 4<SP>4</SP> and 6<SP>4</SP>, driving the cut and pre-cut cylinders in opposite directions of rotation, are looped at one end around a common belt pulley. In the embodiments of Figs. 2, 3 and 7, the cut cylinder is rotated by two endless belts axially spaced apart on the mandrel by a distance less than the said cut cylinder. In the above, the tapes and endless belts are inclined at the same angle, preferably 60 degrees, to the mandrel axis, and tapes subsequent to the first wound tape, are coated with adhesive on their inner sides. A tape or tapes which is or are subsequently wound on the cut cylinder by the subsequent endless belt or belts may join the rear end of this cut cylinder with the forward end of the subsequentlyformed cut cylinder to provide a tube which may then be cut to any desired length.
Patent GB-1269695-A (GB)
Title: Process for the production of polyethers of high molecular weight
IPC: C08G65/26
Filed: 1969-08-11
Abstract: 1,269,695. Polymerisation catalysts. BADISCHE ANILIN- & SODA-FABRIK A.G. 11 Aug., 1969 [12 Aug., 1968], No. 40069/69. Heading B1E. [Also in Divisions C1 and C3] A catalyst for polymerising 1,2-alkylene oxides comprises the product prepared by reacting in liquid ammonia 1 mole of an alkaline earth metal hexammoniate and/or alkaline earth metal amide with 0.1 to 1 mole of a 1,2- alkylene oxide and 0.1 to 2 moles of cyanamide and/or dicyandiamide. The hexammoniate or amide may be prepared in situ by reaction of an alkaline earth metal with the liquid ammonia. Temperatures of -78‹ to 133‹C are suitable.
Patent GB-1428783-A (GB)
Title: Single-lens reflex camera
IPC: G03B7/00
Filed: 1973-08-23
Abstract: 1428783 Reflex cameras ASAHI KOGAKU KOGYO KK 23 Aug 1973 [16 Sept 1972] 40081/73 Heading G2A A single lens reflex camera with a through-thelens photometric system has an electromagnet 6 which is energized when a self-timer is operated, so as to move a member 4 into a position where it blocks light entering the viewfinder eyepiece. As shown, downward movement of a rod 18 actuates the shutter, and this may be effected without any use of the self-timer. A lever 11, spring-biased anti-clockwise, can be engaged at its lower end 11a by a projection 10 on the periphery of a ring 9 which is rotated by a selftimer setting lever 22. When lever 22 is pivoted anti-clockwise, to charge the self-timing mechanism, projection 10 engages and pivots lever 11  clockwise until it moves beyond the end 11a, when lever 11 returns to its original position. As lever 11 is pivoted clockwise, a pin 12 fixed thereon engages and pivots another lever 13 anti-clockwise against a spring 33a until it latches behind a pin 36 on a leaf spring 14. Setting lever 22 is linked via a gear train with an escapement mechanism 28, 30 which controls the running-down of the timer. When this is started by pressing the button 15, this depresses the leaf spring 14, so that pin 36 is disengaged from lever 13. This now pivots clockwise under spring 33a, which frees the escapement 30 and allows the timing mechanism to run down. Projection 10 once again comes into contact with lever 11 and pivots it anti-clockwise, and a pin 16 at its other end engages and pivots a lever 17 clockwise. The upper end of lever 17 engages and closes a pair of contacts 8 which completes a circuit to energize the electromagnet 6. This attracts the end 5 of a lever, so pivoting its other end 4 into the path of light entering through the eyepiece 3, and thus blocking any such light from reaching the photo-sensitive elements forming part of the automatic exposure control circuit. These elements are disposed between the viewfinder pentaprism 2 and the eyepiece 3. At the same time an intermediate arm of lever 17 engages a pin 19 on the release rod 18 and drives this downwards to effect the shutter release.
Patent GB-989789-A (GB)
Title: Improvements in or relating to electronic switching circuits
IPC: B41J9/26
Filed: 1961-11-09
Abstract: 989,789. Selective printing. INTERNATIONAL BUSINESS MACHINES CORPORATION. Nov. 9, 1961 [Nov. 30, 1960], No. 40126/61. Heading B6F. [Also in Division H3] The hammers of an electro-mechanical printer are controlled by solenoids 1 . . . 4 energized by transistor switching circuits (see Division H3). The required solenoid is selected by applying pulses to the appropriate SET and SET GT lines. The selected solenoid remains energized for a time determined by the associated circuit HD1 . . . HD4 but is normally released by pulses fed to the appropriate RESET and RESET GT lines. Magnetic cores such as 9 indicate when any solenoid has been energized.
Patent GB-864471-A (GB)
Title: Improvements relating to the treatment of films of crystallisable polymers
IPC: B29C55/14
Filed: 1958-12-12
Abstract: A biaxially oriented film is made by first elongating a substantially amorphous, cryztallisable polymeric film in one direction at a temperature T, which is above, but not more than 35 DEG C. above, the second order transition temperature of the polymer, then setting the film at a temperature above the temperature T, and at least 15 DEG C. above the second order transition temperature but below the crystalline melting temperature range of the polymer while restricting dimensional change of the film, and then elongating the film in a direction at right angles to the direction of previous elongation at a temperature within 130 DEG C. below to 30 DEG C. below the crystalline melting temperature range of the polymer.  The film may be elongated at the first stage by a factor of at least 2, and the setting temperature may be at least 25 DEG C. above T, but below the crystalline melting temperature range of the polymer. Polyethylene terephthalate film is preferably first elongated at 70 DEG -105 DEG C. then heatset at 85 DEG -250 DEG C., and elongated a second time at 140 DEG -190 DEG C.  Elongation in the second direction may be less than that in the first direction by a ratio such that the resulting film has substantially the same tensile properties in both directions.  In the case of polyethylene terephthalate, an elongation factor of at least 2 in the first direction and 1.3-1.9 in the second direction is desirable. Elongation in the second direction may alternatively be greater than that in the first direction so that a film having unidirectional properties is obtained, and in this modification, with polyethylene p terephthalate, an elongation factor of at least 2 in the first direction and 4.5-5.5 in the second direction is preferable.  The process of the invention may be carried out as an single continuous operation, the elongation in the first direction being transverse to the direction of travel of the film and carried out by stretching. Elongation in the second direction may be effected by stretching or by rolling the film under pressure. After the second elongation the film may be again heat-set at a temperature at least 25 DEG C. above T, but below the crystalline melting temperature range of the polymer, while holding it under longitudinal restraint.  Polyethylene terephthalate film may be heat-set for the second time at 120 DEG -250 DEG C.  Other crystallizable polymers, films of which may be treated by the process of the invention, include polyhexamethylene adipamide, polycaproamide, polyhexamethylene sebacamide polyethylene 2, 6- and 1, 5-naphthalates, polytetramethylene -1, 2- dihydroxybenzoate and copolymers of ethylene glycol terephthalate and ethylene glycol isophthalate.  Specifications 578,079, 695,567 and 743,503 are referred to.
Patent GB-943464-A (GB)
Title: Improvements in or relating to trestles
IPC: B25H1/06
Filed: 1962-10-24
Abstract: 943,464. Folding trestles. E. L. L. OSTERDAHL. Oct. 24, 1962, No. 40239/62. Heading A4W. A trestle consists of a horizontal bar 4 supported by metal folding legs 7 pivoted to mounting plates 6 fixed to the bar 4 by screws 5, each leg 7 consisting of a plate with flanges at its longitudinal edges and having a reinforcing flap 9 riveted or welded to one of the flanges and serving to limit rotation of the flap in both directions.
Patent GB-1418329-A (GB)
Title: Tissue laminates
IPC: B32B7/04
Filed: 1973-08-28
Abstract: 1418329 Laminated tissue MONSANTO CO 28 Aug 1973 [29 Aug 1972] 40401/73 Heading B5N A laminate comprises at least two tissue laminae and at least one non-woven fabric lamina sandwiched therebetween, the non- woven fabric comprising continuous organic synthetic filaments (particularly of nylon) bonded together at a plurality of cross-over points, weighing no more than 0À4 oz./yd.<SP>2</SP> and having a voids area of more than 50% of its surface, and the tissue laminae comprising short cellulosic fibres with the fibres of the laminae on either side of the fabric being intertwined through the fabric voids so as mechanically to lock the laminae together. The laminate is produced by feeding tissue papers and spunbonded fabric from respective rolls to a nip, immersing the superposed laminae in a water bath, passing them through a further nip to wring out excess water and then between heated pressure rollers to remove the water and cause the cellulosic fibres of each tissue lamina to become entwined through the fabric voids. An embossing roller may be incorporated before the bonding rollers to provide the laminate with depressions over 20-50% of its surface area.
Patent GB-1368669-A (GB)
Title: Process for removal of oil from water surfaces
IPC: C02F1/68
Filed: 1972-08-31
Abstract: 1368669 Removing oil pollution from water GULF RESEARCH & DEVELOPMENT CO 31 Aug 1972 [24 Sept 1971] 40488/72 Heading C1C [Also in Division C3] Oil is removed and recovered from water surfaces by contacting the oil on the water surface with a foam produced from an ethylenealkyl acrylate copolymer of ASTM melt index of 800-3000 g./10 min. (see Division C3), allowing the foam to absorb the oil, collecting the foam and recovering the oil therefrom by expression. In the Figure oil, 18, is removed from water, 10, having a surface, 12, by spreading the above foam, 30, from an air blower, 28, on to the water; the foam having been made by heating expandable pellets containing the above copolymer in section 24 of the spreader vessel, 20. Vessel 32 collects the foam containing absorbed oil via scoop 34 into storage compartment 38 from where the foam is fed to section 40 where the oil is recovered by squeezing the foam.
Patent GB-848297-A (GB)
Title: Separation of the elements of air
IPC: F25J3/04
Filed: 1958-12-16
Abstract: 848,297. Cold separation of air. AIR REDUCTION CO. Inc. Dec. 16, 1958 [Dec. 16, 1957], No. 40534/58. Class 8(2). In an air rectification process an argon-rich fraction is led from an intermediate level duct 142 of a low pressure column 59 supplied through a duct 58 with oxygen-rich liquid air from a high pressure column 37 and with pure nitrogen reflux through a duct 77 ; substantially pure nitrogen gas and product liquid ocygen being withdrawn through ducts 81, 61 respec-. tively. In operation air from a compressor 13 having been freed of carbon dioxide in one or other of passages 21, 25 of a reversing heat exchanger 23 controlled by a switching valve 17 traverses a duct 31 and enters a scrubber portion 39 of the high pressure column 37 from which krypton and xenon are discharged through a duct 43. Oxygen-rich liquid is transferred to the column 59 through a duct 55, an expansion valve 57, an argon liquefier 147, a condenser 144 of an argon separating column 140 and the duct 58, and pure nitrogen gas passes from column 37 to column 59 through a duct 83, a condensing tube 85 of an oxygen reboiler 63, a condenser 89, a liquid nitrogen pump 95, ducts 47, 53 a subcooler 75 and the duct 77. Waste nitrogen from the head of column 59 is discharged through the duct 81, the subcooler 75, a duct 33 one or other of passages 21, 25 undergoing deriming and the valve 17 to atmosphere. Argon-rich gas is fed through the duct 142 to the column 140 from which liquid oxygen is returned through a duct 161 to the column 59 and crude argon gas traverses a duct 145 and the liquefier 147 and the liquid argon is discharged through a duct 153. The concentration of argon at the level of duct 142 is maintained at an optimum value of 10 mol. per cent by controlling a gaseous oxygen bleed valve 173 by means of a gas analyser 177. Condensation of the high pressure nitrogen in condenser 89 is effected by heat exchanger with nitrogen circulating in a closed circuit comprising a compressor 117 discharging through a passage 121 of a heat exchanger 123 and from which passage the major portion of the nitrogen is bled through a duct 125 and expanded in an engine 127 and returned to the compressor intake along a passage 131 to effect cooling of the passage 121. The remaining nitrogen from passage 121 having been cooled by the expanded portion is itself expanded at a valve 134 and traverses a boiling tube 41, a further expansion valve 101 the tubes 91 of condenser 89 and a duct 105 leading to a non-reversing passage 27 in the heat exchanger 23, a duct 111 and the compressor inlet. Prior to entry of recycle nitrogen to the passage 27 a major portion is bled from duct 105 through a duct 107 to join the nitrogen leaving the engine 127 and entering the passage 131, and at a point between the ends of passage 27 a minor portion of the recycle nitrogen is bled through a duct 109 to the passage 131 whereby the temperature gradient of the exchanger 23 is controlled. Reference has been directed by the Comptroller to Specifications 759,853, 759,857, 759,858 and 759,859.
Patent GB-1267618-A (GB)
Title: Antiseptic compositions
IPC: A61K8/42
Filed: 1970-08-25
Abstract: 1,267,618. Antiseptic compositions. STAFFORD-MILLER Ltd. 25 Aug., 1970 [28 Aug., 1969], No. 40801/70. Headings A5B and A5E. An antiseptic composition, which is particularly useful for treating the mucous membranes of the oral cavity, comprises urea peroxide (NH 2 CONH 2 H 2 O 2 ), glycerol and a carboxypolymethylene polymer or metal or amine salt thereof, which polymer is soluble in glycerol and increases the viscosity of the glycerol. The carboxypolymethylene polymers may comprise interpolymers of a major proportion of one or more alpha, beta-olefinically unsaturated carboxylic acids and a minor proportion of a polyalkenyl polyether of a polyol, e.g. a polyallyl ether of a polyhydric alcohol containing at least three hydroxyl groups. Suitable polyallyl polyethers of polyols include allyl ethers having an average of at least two allyl groups per molecule and which are ethers of sucrose, sorbitol, glucose, mannitol, pentaerythritol, 1,2,3-butanetriol and xylitol. Additional monomers which may be included in the polymer are vinyl acetate, acrylamide and vinyl pyrrolidone. The carboxy polymethylene polymers are included in amount sufficient to provide a gel having a viscosity of at least 1000 centipoises at 20C. The glycerol may be anhydrous or up to 10% of the composition may be water, in which case it is desirable to incorporate a peroxide stabilising agent, e.g. phenocetin, acetanilide, 8-hydroxyquinoline, stannous salts, ethylenediaminetetracetic acid derivatives. Other glycerol-soluble components may be added, e.g. therapeutically acceptable dyes and/or flavouring agents.
Patent GB-948622-A (GB)
Title: Device for dilating and dispensing material to body cavities
IPC: A61M29/00
Filed: 1960-02-02
Abstract: 948,622. Surgical injectors. H. W. WALDEN, and R. H. WALDEN. Feb. 2, 1960, No. 40908/63. Divided out of 948,621. Heading A5R. A combined dilator and dispenser, for use in treating body cavities, wherein the supply of material is controlled by a valve, has means whereby the opening of the valve is simultaneous with the opening of the dilator. The dilator may comprise two semi-cylindrical jaws 11, 13 pivoted to a frame by screws. Medicament is contained under pressure in a storage device from which it may be released by pressure on a valve so as to pass through a central tube within the dilator 11, 13. When the jaws are opened by pressure on knobs 25, attached to rearward extensions of the jaws, an associated finger 24 bears on the valve 32 to open it. If the container 33 is of the type in which the valve is located coaxially with the outlet and is opened by longitudinal pressure thereon, this may be achieved by a cam device on a plunger actuated by the finger grips on the dilator, see Fig. 8 (not shown).
Patent GB-1081770-A (GB)
Title: Improvements in hydraulic turbo couplings
Inventor: BILTON JOHN
IPC: F16D33/18
Filed: 1963-10-16
Abstract: 1,081,770. Hydrodynamic couplings. FLUIDRIVE ENGINEERING CO. Ltd. Oct. 16, 1964 [Oct. 16, 1963], No. 40922/63. Heading F2C. The subject-matter of this Specification is identical with part of that described in Specification 1,081,769, but the claims are directed towards the scoop for lubricating the bearing between the input and output shafts.
Patent GB-991960-A (GB)
Title: Immobilised electrolyte lead accumulators
IPC: H01M10/10
Filed: 1963-10-17
Abstract: 991,960. Storage batteries. VARTA A.G. Oct. 17, 1963 [Oct. 23, 1962], No. 41126/63. Addition to 975,695. Heading H1B. The lead accumulator of the parent Specification has the electrolyte in prefabricated bodies of a polyelectrolyte gel. The bodies may have a supporting skeleton or contain asupporting fabric. The skeleton may be filled with a polyelectrolyte sol and then dipped into sulphuric acid to form a gel.
Patent GB-1009902-A (GB)
Title: Improvements in or relating to the dezincing of lead
Inventor: DAVEY THOMAS RONALD ALBERT
IPC: C22B13/06
Filed: 1963-10-18
Abstract: A continuous method for dezincing lead comprises supplying the lead containing zinc to an enclosed region in which the lead is cooled thus throwing the zinc out of solution and forming a zinc rich layer, from which the zinc is evaporated, on top of the lead which is continuously removed from the lower part of the enclosed region.  The contaminated lead may be supplied immediately below the zinc rich layer and is preferably introduced tangentially into a circular enclosed region and the input temperature thereof is preferably 550-600  DEG C. and the output temperature 450-550  DEG C. The zinc vapour may be condensed in one stage or preferably in three, the first giving a lead-rich zinc, the second pure zinc and the third cadmium-rich zinc. The first stage may be a refluxing stage above the evaporating surface.