baber/WOPTO huggingface dataset:
Patent GB-1078689-A (GB)
Title: Pneumatic separator
Inventor: GREEVY LESLIE ROBERT
IPC: B07B7/02
Filed: 1964-11-19
Abstract: 1,078,689. Pneumatic separators. JOHN GORDON & CO. (ENGINEERS) Ltd. Nov. 19, 1964, No. 47248/64. Headings BIT and B2H. A closed circuit pneumatic separator or classifier, Figs. 1 and 2, comprises a separator chamber 2 having an outlet 12 for heavy material in its bottom and an inlet 8 for the supply of unseparated material, an air blower 4 for blowing air upwards through the chamber 2, an expansion chamber 3, downstream of the chamber 2 and upstream of the blower 4 and having an outlet 14 for light material in its bottom, for separating the light material from the air by the effect of gravity and air expansion, a duct 6 substantially above the level of the outlet 14 for passing air from the expansion chamber 3 back to the blower 4, and ducts 7, 5 leading respectively from the blower to the separator chamber and from the separator chamber to the expansion chamber, the parts 2-7 being enclosed in a casing 1. The chamber 2 is provided with means 17 for straightening and uniformly distributing the air flow. The blower 4 has twin rotors 20 mounted on a shaft 21 and separated by a partition 18 extending in the duct 6 between two butterfly valves 16 mounted on a shaft 19 and controlling the air flow through the circuit. Inclined plates 22, 23 are mounted upstream of the valves 16 and downstream of the blower 4. In an alternative construction, the valves are mounted adjacent to the outside of the casing 1 and the rotors close to each other in the centre portion of the casing, the positions of the inclined plates being reversed. Spring biased flaps are provided at 9, 13 and 15. In a modification, Fig. 5 (not shown), an intermediate expansion chamber (25) is provided and contains louvres (27) for controlling the air flow whilst allowing medium-size material to pass through them for discharge through an outlet chute (32). A pivotable member 28 having an arcuate surface 29 controls the separation of the medium-size material from the light material.
Patent GB-1065244-A (GB)
Title: Improvements in or relating to primers
IPC: F42C19/10
Filed: 1963-11-29
Abstract: 1,065,244. Detonators. DYNAMIT NOBEL A.G. Nov. 29, 1963 [Nov. 29, 1962], No. 47338/63. Heading F3A. A primer has a booster charge comprising oxidizing and reducing agents and ignited by a primary charge containing an igniting composition as well as oxidizing and reducing agents. A primer comprises a sleeve (1), a threaded cap (2) and base plate (3) with a recess (4) clamped to the sleeve by the cap. A booster charge (8) consisting of barium nitrate, lead dioxide and calcium silicide with no igniting agent and compressed up to 10<SP>3</SP> kg/cm<SP>2</SP> is pressed into a widened bore (9) of the sleeve 1 and held by a cover-plate (10), the widened bore tapering into a duct (18) with a taper angle of between 30 and 60 degrees to the longitudinal axis of the sleeve. A cup 5 is fitted into the recess (4) and holds an anvil (7) with flash passages (7a) together with a compressed priming charge (6) which consists of approximately the same mixture as the booster charge (8) together with tetrazene and tricinate as igniters and has a mass of between the same as and <SP>1</SP>/ 500 th of the booster charge. The lead dioxide in the booster charge may be replaced by copper oxide and the calcium silicide by silicon; basic lead nitrate may be used and zirconium or boron may replace the aluminium or silicon. An electrically-operated detonator is described as an embodiment in which a primary charge and a booster charge are pressed into contact with each other. Another embodiment shows an electrically-operated primer.
Patent GB-1154420-A (GB)
Title: Process for Recovering Mercury From a Sludge produced during Electrolysis of Alkali Chloride in a Mercury Cell
IPC: C25B1/36
Filed: 1967-10-18
Abstract: 1,154,420. Electrolytically producing caustic alkali and chlorine. TOYO SODA MFG.CO. Ltd. and JAPAN ORGANO CO. Ltd. Oct. 18, 1967 [Oct. 20, 1966], No. 47430/67. Heading C7B. In the production of caustic alkali and chlorine by electrolysis of alkali metal chloride e. g. LiCl, NaCl or KCl solution in a mercury cathode cell 1, depleted brine 2 is fed via dechlorinating apparatus 3 and salt dissolving tank 4 into a brine purification tank 6, where sodium carbonate 7 and caustic soda 8 are added to remove impurities such as Ca<SP>++</SP> and Mg<SP>++</SP> ions together with mercury by precipitation, to form a saturated and purified brine 24. Mercury is recovered from the sludge 9 produced in the tank 6 by dissolving the sludge (or a cake 11 filtered therefrom by a filter 10) with an acid 14 e. g. HC1 or H 2  SO 4  in a tank 13 to form a solution 15 which is contacted with an anion exchanger 18 which absorbs mercury, eluting the mercury from the anion exchanger with an acid 20 e. g. HC1 or H 2  SO 4  to form an eluate 21 which is used to adjust the pH of the purified brine 24, e.g. neutralise it from 10-11 to 7-8 in a tank 23, being fed into the cell 1, where the mercury is recovered by electrolytic reduction. The solution 15 may be neutralised with alkali 17 before contacting the anion exchanger 18, which may be solid, e.g. a resin column, or liquid, e.g. contained in Kerosene solution.
Patent GB-1169564-A (GB)
Title: Document Endorser
IPC: B41L35/12
Filed: 1966-10-24
Abstract: 1,169,564. Printing machines. BELL & HOWELL CO. 24 Oct., 1966 [24 Oct., 1965], No. 47586/66. Heading B6C. In a rotary printing machine for endorsing cheques a readily removable printing cylinder 12 is mounted on a rotatable stub shaft 13 and carries two identical plates 29, 30 such that two belt fed cheques are endorsed during each revolution, the operative half revolution for each cheque being initiated by a paddle-wheel detector device 32 which is pushed by the relevant cheque through one third of a revolution. This movement of the paddle-wheel is translated into actuation of a solenoid controlled clutch device 66 by an electrical control circuit whereby a continuously motor driven gearwheel 68, freely rotatable on the shaft 13, is caused to engage an element 70 fixed to the shaft to thereby rotate the cylinder. The latter is mounted on the stub shaft 13 from the free end thereof, a flnger-actuable pivoted lever 50 and spring-loaded detent 61 being mounted on the shaft at the free end to secure and release the cylinder at will. The cylindrical surface incorporates two flat portions 27, 28 whereby through operation of the electrical control circuit any particular cheque may be endorsed in any specified region.
Patent GB-1150608-A (GB)
Title: Installation for Processing and Storing Measuring Data
IPC: G08C15/12
Filed: 1966-10-25
Abstract: 1,150,608. Electric selective signalling. STAMICARBON N.V. 25 Oct., 1966 [27 Oct., 1965], No. 47893/66. Heading G4H. In a system for accumulating data representing measurements from a number of measurement points the measurement points are sequentially connected via a selector switch 2 (Fig. 2) to a transducer O, the output from which is a pulse train of length proportional to the measurement, the pulses being accumulated via a selector switch 18 in the counter T 1  ... T 10  associated with the measurement point. After each of the measurement points has been scanned a fixed number of times the accumulated count is recorded on punched tape 22 and the counters are zeroized. The transducer which converts a pressure input into a pulse train comprises a shaft which is differentially positioned according to the pressure at input 1 (Fig. 1) and moves a cam 3 so that a lever 5 moving downwards until it senses the cam rotates a further shaft 10 and cam 13. The cam 13 controls a contact 14 so that a train of square wave pulses 15 are obtained.
Patent GB-1196754-A (GB)
Title: Film Take-Up Drive.
Inventor: HOPWOOD JOHN HENRY
IPC: G03B1/12
Filed: 1967-10-20
Abstract: 1,196,754. Fluid couplings. ACMADE Ltd. 16 Oct., 1968 [20 Oct., 1967], No. 47923/67. Heading F2C. [Also in Divisions G2-G3] A film take-up drive providing constant film tension comprises a viscous fluid drive coupling 19 having an input gear 17 driven by constant speed reversible motor 21, and an output shaft 22 couplable to either of two spindles 10, 11 for the film spools 12, 13 to provide forward or reverse film feed, a separate adjustable slipping clutch 42, 43 providing hold-back friction for each spindle, and electromagnetic clutches 40, 41 for disengaging clutches 42, 43 from their spindles. Coupling 19 comprises a first disc 25 adjustably fixed to housing 18 which is secured to gear 17, and a second disc 24 on the end of pulley shaft 22 freely passing through gear 17. Housing 18 is filled with oil. Spool spindles 10, 11 are driven by shaft 22 through pulleys 36, 37, belts 34, 35, and pulleys 30, 31 engaging shaft 22 through one-way clutches 32, 33.
Patent GB-1038307-A (GB)
Title: Improvements in litters
IPC: A61G1/00
Filed: 1964-11-25
Abstract: 1,038,307. Litters. JARNHS ELEKTRISKA A.B. Nov. 25, 1964 [Nov. 27,1963; April 22, 1964, No. 47936/64. Heading A5X. To facilitate the movement of a patient from an auxiliary stretcher 1, 2, 3 to a larger main stretcher, the auxiliary stretcher can be fitted within the frame 8, 9 of the larger stretcher and the body-supporting sheet 14 of the larger stretcher is detachable. The patient is moved e.g., in an ambulance, on the supporting sheet 14 placed over the auxiliary stretcher and when it is desired to move the patient to the main stretcher e.g., in the hospital, the auxiliary stretcher is placed over the main frame 8, 9, the sheet 14 is secured to this frame, and the patient is moved on the main stretcher optionally with the auxiliary stretcher attached. The stretchers have telescopic handles and the auxiliary stretcher has a canvas bodysupporting sheet 5 and an adjustable head rest. As shown, the sheet 14 is held to the main frame 8, 9 by interfitting hooks and eyelets, or in an embodiment, Figs. 8 and 9 (not shown), the edges of the sheet are held by spring clamps. The longitudinal members 8, 9 of the main frame may be rotatable relative to the associated cross-members 10 and provided with ratchet devices to allow the sheet 14 to be rolled on to the members. The sheet 14 may comprise a pad of foamed plastic between layers of canvas.
Patent GB-1526560-A (GB)
Title: Separation of particulate material from sludge slurries and the like flowable material
IPC: B01J19/08
Filed: 1976-11-17
Abstract: 1526560 Removing deposits from anodes ELECTRICITY COUNCIL 14 Nov 1977 [17 Nov 1976] 47980/76 Heading C7B Apparatus in which particles from a clay suspension are electro-phoretically deposited on a vertical anode 13 has horizontally extending scraper(s) 20 arranged on a flexible rising endless band (chain) 16 to pass (touching or spaced) over the anode surface, and a movable collector 20 arranged to remove scraped material on the downward path (outside the bath). The collector engages each scraper and then moves to clear it for subsequent engagement with the next scraper. As shown, L-sectional scrapers are engaged by plate 22 which slides downwardly and outwardly in support 23. The collector may be biased (by spring or counterweight) upwardly and may additionally move synchronously with the scrapers (via cam arrangement 31). A reciprocating blade 32 may clean the collector of material, which then collects in hopper 35. Soluble anodes may assist flocculation. Cloth 37 may enclose a cathode space from which cleared liquid is withdrawn.
Patent GB-1414703-A (GB)
Title: Process for blending an additive such as colour pigment etc with a plastics material and blending apparatus intended to be used for said process
IPC: B29C45/18
Filed: 1973-10-15
Abstract: 1414703 Feeding additives to moulding machines PERSTORP AB 15 Oct 1973 [20 Oct 1972] 48005/73 Heading B5A [Also in Division B 1]  In a process for the blending of an additive such as a colour pigment with a carrier such as a plastics material, the carrier material is introduced into a first hopper 1 which is in direct communication with a feed screw of an injection moulding machine and a second hopper 4 is provided with the additive and is connected to the first hopper by a pipe 7 by way of a dosing device 6. The first hopper 1 is provided with blending means in the form of a rotary stirrer 2 and desired amounts of the additive are supplied by the dosing means for blending and mixing with the carrier material by the stirrer 2. The dosing means is in the form of a reciprocable member with a hole which receives the additive and by its reciprocating action passes the quantity of additive into the pipe 7 for supply to the hopper 1 in the immediate region of the stirrer 2. The rotation of the stirrer and the reciprocating action of the dosing device are electrically inter-controlled in relation to the feed screw 3 to ensure co-ordination of the operation to produce the mixture required. The amount of additive supplied to the first hopper is regulated by varying the reciprocating motions per unit time and/or varying the thickness of the reciprocable member and/or by varying the size and/or number of the holes in the member.
Patent GB-1359176-A (GB)
Title: Process for making synthetic waxes
IPC: C08F10/00
Filed: 1971-10-15
Abstract: 1359176 Treating polyethylene waxes ESSO RESEARCH & ENG CO 15 Oct 1971 [30 Oct 1970] 48088/71 Heading C3P A wax finishing process wherein wax is produced by reacting ethylene and an aromatic compound in the presence of a catalyst formed by mixing an organolithium compound and a chelating ditertiary amine to form a reaction mixture comprising wax product, catalyst residues, solvent and wax light ends, comprises flashing and/or stripping with an inert gas the wax formed in the reaction thereby removing some catalyst residues, telomer light ends and solvent from the wax product, water washing the liquid wax to extract catalyst residues into an aqueous layer, separating the wax from the aqueous layer and drying the wax. The reaction mixture may be stripped with an inert gas, e.g. ethylene, nitrogen or methane, and ethylene, solvent, catalyst components and wax light ends separated and recycled to the reactor; and/or the reaction mixture may be steam stripped. The aqueous layer may be acidified, e.g. with hydrochloric, sulphuric or long chain fatty acids. The wax may be pelletized or mixed with cold water to effect granulation.
Patent GB-1075225-A (GB)
Title: Improvements in or relating to hydrogen thyratrons
Inventor: JONES ERIC
IPC: H01J17/28
Filed: 1964-11-27
Abstract: 1,075,225. Hydrogen thyratrons. ENGLISH ELECTRIC VALVE CO. Ltd. Nov. 5, 1965 [Nov. 27, 1964], No. 48296/64. Heading H1D. A hydrogen thyratron comprises a metal envelope 1 housing a cathode 12, a grid 9 and an anode 3, either the cathode or the grid being directly connected to the metal envelope for good heat dissipation. As shown, the anode 3 is mounted in a cylindrical recess 7 formed by the envelope 1 and is supported at its ends by ceramic cylinders 5, 6, Fig. 1 (not shown), secured to the envelope, an anode lead passing through one of these cylinders. The grid 9 comprises a metal rod aligned with the slot 8 in recess 7, and is either directly secured to the envelope 1, Fig. 3 (not shown), or supported at its ends by leads 10 passing through ceramic insulators 11. In the latter case, the cathode has one end connected to envelope 1, and the other end supported by a lead 13 passing through insulator 14, while in the former, both ends of the cathode are supported by leads passing through envelope insulators. The cathode is surrounded by a heat shield 19, and also supports a hydrogen reservoir 15 in the form of a tubular strip of titanium saturated with absorbed hydrogen. The envelope has an external flange by which it may be fixed in thermal contact with a heat sink.
Patent GB-1006370-A (GB)
Title: Improvements in or relating to the preparation of antimony oxycloride
IPC: C01G30/00
Filed: 1963-12-06
Abstract: Antimony oxychloride, SbOCl, is prepared by reacting antimony trioxide and antimony trichloride in an aqueous medium containing at least 30% by weight hydrogen chloride and separating crystalline oxychloride.  Antimony trichloride should be in amount at least one mole per mole of trioxide, preferably equimolar. The reaction is at 80-110 DEG  C., preferably at reflux temperature, 109-110 DEG  C. The aqueous medium may contain 30-40% hydrogen chloride.  Antimony trichloride is first dissolved in the medium and antimony trioxide is added slowly, e.g. 30-120 minutes. After SbOCl separation by filtration, decantation or centrifuging the aqueous medium may be recycled. The SbOCl may be washed with acetone, methyl ethyl ketone, ethylhexanol or diacetyl aceton and air dried.  The SbOCl has particle size of 4-100, preferably 8-35 microns, and may be used as a flame retardant for organic polymeric materials, e.g. polyvinyl chloride, and these compositions have a high degree of clarity. An example, (2), refers to the formation of antimony pentoxydichloride Sb4O5Cl2 when only 26% HCl is used.
Patent GB-1444103-A (GB)
Title: Preparation of phosphonothioureides
IPC: A61K31/66
Filed: 1973-10-17
Abstract: 1444103 Preparation of phosphonothioureides ROHM & HAAS CO 17 Oct 1973 [18 Oct 1972] 48353/73 Addition to 1389525 Heading C2P Compounds of Formula I where Y is O or S, R is C 1-6  alkylsulphonyl, optionally substituted benzene sulphonyl, C 1-6  alkanoyl, chloroacetyl, benzoyl or substituted benzoyl, R<SP>1</SP> and R<SP>11</SP> are C 1-6  alkyl, C 2-6  alkoxy alkyl, C 1-6  haloalkyl or optionally substituted phenyl and X represents from 0 to 4 substituents selected from C 1-6  alkyl and alkoxy and halogen, are prepared by (I) reacting, in a substantially anhydrous inert organic solvent having a boiling point of at least 30‹ C. and in which the reactants are soluble, substantially equimolar amounts of a thiocyanate salt of a cation having a water-soluble chloride and a compound of formula to form a compound of formula which may be isolated, (II) adding to the reaction mixture a substantially equimolar amount of a compound of formula to form a compound of formula and (III) adding to the reaction mixture a substantially equimolar amount of a compound of formula to form the desired product. The solvent may be, glyme, diethylether, ethyl or butyl acetate, methylene or ethylene dichloride, chloroform, carbon tetrachloride, acetonitrile, benzene or toluene. The thiocyanate salt may be a Na, K, Li, Ca, Ba or NH 4  salt.
Patent GB-1094512-A (GB)
Title: Improvements in and relating to electro-mechanical follow-up control mechanisms
IPC: G05D3/14
Filed: 1965-11-15
Abstract: 1,094,512. Correspondence control systems. CONTRAVES A. G. Nov. 15, 1965 [March 26, 1965], No. 48363/65. Heading G1N. In a correspondence control system a servomotor 1 drives a variable resistor R 1  forming an actual position transmitter, into correspondence with a reference position which is manually set on a variable resistor R 2 . Both resistors are identical in value and are in the same arm of a bridge circuit which is set so that the bridge is balanced when the sum of the effective resistances of R 1  and R 2  corresponds to a value The bridge will therefore be unbalanced in one sense or another depending on whether R 1 +R 2  is larger or smaller than a predetermined desired value S o , and the unbalance voltage will correspond to the difference between the actual position of the servomotor shaft and the desired position. The bridge output is applied to two transistor amplifiers T a , T b  and depending on the sense of the unbalance the collector current in one will increase and will decrease in the other. When the collector current in one exceeds a predetermined limit relay K 1  or K 2  will be energized thereby to operate an associated switch K 1  or K 2  to rotate the servomotor 1 in one direction or the other when the said difference exceeds a certain limit #S.
Patent GB-1469067-A (GB)
Title: Visual aid question and answer game
IPC: A63F9/18
Filed: 1975-11-26
Abstract: 1469067 Question and answer game C S WILLIAMS 26 Nov 1975 48701/75 Heading A6H Game apparatus comprises a representation of a running track having differently-coloured lanes marked out in squares, sets of (100) cards bearing questions and answers, each set dealing with a different subject, two dice of one colour and one of another, and markers equal in number to the number of lanes and similarly coloured. The representation may be on a board, a magnetic board, slides or overhead projection slides. The questions may be on life assurance. Sets of blank cards may be included.
Patent GB-1282476-A (GB)
Title: Electrical devices comprising alumina and silicon
IPC: H01L21/00
Filed: 1969-10-03
Abstract: 1282476 Integrated circuits THOMSON-CSF 3 Oct 1969 [7 Oct 1968] 48793/69 Heading H1K A substrate from which an integrated circuit can be produced consists of a monocrystalline silicon wafer carrying an epitaxial alumina layer which in turn bears at least one epitaxial layer of doped silicon. The alumina may be grown by high-temperature oxidation of gas phase transferred aluminium halides, and the growth of silicon restricted to certain areas by masking which can also be used to permit different doping of the various areas by diffusion. Alumina may be disposed between the silicon islands to afford isolation. In one embodiment alumina is grown in a recess in the base wafer and silicon then grown both inside and outside the lined recess.
Patent GB-1097392-A (GB)
Title: Gear pumps
Inventor: HARDING JOHN KAMMERER
IPC: F04C2/08
Filed: 1963-12-11
Abstract: 1, 097, 392. Gear pumps. DOWTY TECHNICAL DEVELOPMENTS Ltd. Dec. 9, 1964 [Dec. 11, 1963], No.48879/63. Heading F1F. In a gear pump comprising a pair of intermeshing gears 14, 18 mounted in overlapping bores on shafts supported on bearing bushes 22, 23 and in which one of the pairs of bushes is pressure-loaded to maintain constant engaging pressure between the bush end faces and the adjacent gear faces, a groove 20 is formed in the bush 23 on the central plane X-X so that liquid between the intermeshing teeth is permitted to escape and pass from the pump as a relatively low flow at high-pressure for utilization for a service additional to that of the normal pump discharge, e.g., a suspension levelling arrangement on a road vehicle or on earth moving vehicles or tractors having an auxiliary service. The groove 20 opens into a high-pressure duct 32 fitted with a non-return valve 33. As shown in the figure, teeth 12, 13 of the gear 14 contact teeth 15, 16 of the gear 18 along lines of contact 24, 25 and until the line of contact 25 crosses the inner boundary of a transfer slot 27 excess liquid trapped between the contact lines 24, 25 will be expelled through a transfer slot 26 and the slot 27. The groove 20 then being open to receive liquid substantially at delivery pressure. At this stage of teeth engagement, the space between the lines of contact is decreasing in volume. At a later stage when this space is expanding, it is connected to the supply side of the pump through the transfer slots 26, 27 to the left of the plane X-X. There may be more than one groove 20 and one duct 32 each incorporating a non-return valve 33 with all the ducts discharging into a common auxiliary supply duct.
Patent GB-1181378-A (GB)
Title: Improvements in lampshades
Inventor: MAGUIRE THOMAS LIGHTFOOT
IPC: F21V9/02
Filed: 1967-10-27
Abstract: 1,181,378. Lampshades. ALUMISTE Ltd. 2 Aug., 1968 [27 Oct., 1967], No. 48930/67. Heading F4R. A lampshade consists of a plurality of tiers a, a<SP>1</SP> each comprising a ring formed of a plurality of geometrical figures, the figures being built up from strips b and each figure having a base b<SP>1</SP> and an arcuate surface b<SP>3</SP> opposite the base. The figures of each ring are assembled with their bases facing inwardly to form a central tunnel b<SP>2</SP> to house the lamp bulb (not shown) and the ends of adjacent figures are secured to each other and to one of a series of vertical supports C common to all the tiers. A central ring D for attachment to the bulbholder is connected to the bases of two of the figures in the top-most tier by wire strips d. The strips b are made of heat resisting plastics material or of aluminium having a concaveconvex cross-section.