baber/WOPTO huggingface dataset:
Patent GB-1505405-A (GB)
Title: Filter unit for purifying liquids
IPC: B01D29/00
Filed: 1975-08-06
Abstract: 1505405 Filter W STAUSBERG and H STAUSBERG 6 Aug 1975 [16 Aug 1974] 32901/75 Heading BID A filter, particularly for a swimming pool or drinking water, comprises an open tank 1 divided by a wall 2 into an inlet chamber 3 and a filter chamber 4, enclosing inward-flow filter plates 18, the tank floor 7 sloping down to a transverse trough 8 provided at one end with a closable opening (9, Fig. 2 not shown) for discharge of used filter aid and deposited solids, such discharge being assisted by delivering water through a nozzle 10 at the other end of the trough and nozzle pipes 11, 12 extending across floor 7. Wall 2 has vertical rows of perforations 6 adjacent the sides of the tank and a gap 5 beneath it, whereby the turbulence is removed from incoming water before it reaches the filter plates. For swimming pool water, chamber 3 encloses a heater 36, which may be electric or may be a pipe through which oil circulates from an external heater. Each filter plate 18 has a tubular frame 27 enclosing a grooved support structure which may be a plate or a row of square sectioned tubes 30, enclosed by filter cloth. The frame 27 has apertures 43 by which filtrate flows from beneath the cloth to outlet 20, releasably coupled to the upper end of a chamber 21 (Fig. 3, not shown) leading to pump 24. Chamber 21 has sloping bottom walls and a top window 44 for observing the flows from the various filter plates, which are vertically oriented and supported on transverse bars 16, 17. Between the filter plates 18 are nozzle tubes 34, which may be fixed above or vertically reciprocatable between the plates to wash off the filter aid therefrom. Valves 40, 41 enable pump 24 to recirculate water through tank 1 to build up filter aid layers on the plates, the filter aid being simply added to the tank. Valves are then adjusted so that water is circulated to and from the swimming pool through the filter. After filtering, the plates are washed clean by tubes 34, outlet (9) is opened and nozzles 10, 11, 12 used to flush the solids from the tank. The filter aid may be diatomite or activated carbon or a mixture thereof. The carbon removes chloramines, chlorides and hypochlorous acids.
Patent GB-521053-A (GB)
Title: Improvements in and relating to the production of resilient mountings
IPC: B29C39/12
Filed: 1938-11-12
Abstract: 521,053. Junction rubber. VOIGT, C. A. Nov. 12, 1938, No. 32923. Convention date, Dec. 4, 1937. [Class 70] [Also in Group XXXII] A resilient mounting 1 is formed in one piece of rubber, the outer layers 2, 3, being mixed with cement, e.g., 25 per cent. Portland cement, to make them rigid so that they form attachment plates for securing the block. The outer layers may be additionally strengthened by inserts of wires'or fibrous material.
Patent GB-1285127-A (GB)
Title: Solvent compositions
Inventor: MCMILLAN IAN
IPC: C11D7/50
Filed: 1970-07-07
Abstract: 1285127 Cleaning fluids IMPERIAL CHEMICAL INDUSTRIES Ltd 21 June 1971 [7 July 1970] 32944/70 Heading C5D A cleaning fluid, especially for removing soldering fluxes from electrical equipment, comprises an azeotropic mixture of trichlorotrifluoroethane and nitromethane. A preferred fluid contains 97% by wt. of 1,1,2-trichloro-1,2,2- trifluoroethane and 3% of nitromethane. Optional additives are cationic, anionic and non- ionic detergents; and water.
Patent GB-1325988-A (GB)
Title: Electrically controlled fuel in injection systems
Inventor: SOLL W
IPC: F02D41/10
Filed: 1972-07-14
Abstract: 1325988 Fuel injection systems ROBERT BOSCH GmbH 14 July 1972 [16 July 1971] 32948/72 Heading G1N In an I. C. engine electrically controlled, intermittent fuel injection system, the injection valves 11 are divided into two groups which are operated simultaneously when the engine speed is above idling, and are operated alternately when the engine speed is at idling or determined by a switch 65 coupled to the butterfly valve 60. As shown, when the engine speed is above idling and switch 65 is open, the control pulses 27 provided by a monostable multi-vibrator 25, which is triggered once per engine revolution from the engine ignition distributer 51 and a frequency divider 50, operate the valves groups simultaneously via respective stages 61, 21 and 62, 22. However, when the switch 65 is closed at idling speed, a bistable switch 73 and a pair of AND gates 71, 72 are operated such that the valve groups are energized alternately, one group being energized during one revolution of the engine, and the other group being energized during the following revolution. In this case, the switch 65 causes a prolongation stage 26 is double the duration of the control pulses 27. In a modification, Fig. 5 (not shown), the prolongation stage is omitted, but when the engine is at idling speed, the frequency of energization of each group is doubled so that one group is energized twice during one revolution of the engine and the other group is energized twice during the next revolution. To this end, a 1:2 frequency divider is additionally provided, this being effective to trigger the monistable multivibrator 25 when the switch 65 is closed.
Patent GB-1317975-A (GB)
Title: Rotor vlade with varialbe outlet nozzle for a rotary-wing aircraft
IPC: B64C27/18
Filed: 1970-07-07
Abstract: 1317975 Jet nozzle on rotor blade VEREINIGTE FLUGTECHNISCHE WERKEFOKKER GmbH 7 July 1970 [8 July 1969 11 Sept 1969] 32986/70 Headings B7G and B7W The area of a nozzle 6 of a jet-propelled rotor blade 1 on a rotary wing aircraft is varied by means of a resilient element 8. This element is formed from a strip of metal and may be drawn by means of a cable 9 into a position such as that indicated in dotted lines, thereby reducing the cross-sectional area of the nozzle for increasing the velocity of the jet.
Patent GB-210229-A (GB)
Title: Improvements in and relating to systems of electric motor control
IPC: H02P5/46
Filed: 1922-12-04
Abstract: 210,229. British Thomson-Houston Co., Ltd., and Given, R. D. Dec. 4, 1922. Speed maintaining systems.-In a system for maintaining constant relative speeds of a number of motors such as are employed to drive papermaking machinery, any departure from a given speed ratio is corrected by shifting the brushes of an auxiliary machine which positively or negatively boosts the field excitation of the deviating motor. The Figure shows three working motors 1, 2, 3. The motor 1 acts as the standard speed machine and drives a threephase alternator 5 which sends current to the wound rotor of a three-phase machine 6 driven mechanically by the working motor 2. The arrangement is such that under normal speed conditions the field induced in the machine 6 travels backwards at the same rate as the motor is mechanically driven forwards, so that the induced field remains stationary in space. If the speed of the motor 2 changes, the field of the machine 6 rotates and thereby carries round the stator frame, which is variably geared so as to shift the brushes of a booster machine 16, also driven by the motor 2, the effect being that the excitation of the motor field is corrected and its speed restored to normal. The motor 3 is similarly controlled. In a modification the alternator 5 is separately driven, and control-gear of the kind described is associated with the motor 1. Specification 205,215 is referred to.
Patent GB-894539-A (GB)
Title: Improvements relating to mine conveyors
Inventor: TRISTRAM JOHN EDWARD
IPC: B65G47/51
Filed: 1959-09-30
Abstract: 894,539. Articulated transporter carriages for use in mines. BUTTERLEY CO. Ltd. Oct. 27, 1960 [Sept. 30, 1959], No. 33144/59. Classes 78 (1) and 78 (4). Temporary storage in a mine transport system is provided by a set of articulated open-bottom cars 5, 8 ... 9 which are withdrawn when material is to be stored, over a belt conveyer 29 which seals the bottoms of the cars. In the form shown, the belt 29 is connected to the rearmost car 5 by a clip 33. Material from the feed conveyer 1 is normally deflected by a plate 4 in the rearmost car directly on to a scraper conveyer 2. When, however, the cars are withdrawn over the belt 29 material from the belt 1 is received by the belt 29. Deflector plates 10 permit material to be delivered to the scraper conveyer 2 by the feed conveyer 1, and simultaneously by forward movement of the train of cars. The cars may be moved by a haulage system connected to a pulley 24 on the leading car.
Patent GB-360664-A (GB)
Title: Improvements in apparatus for directional illumination
IPC: F21S8/00
Filed: 1930-11-04
Abstract: 360,664. Street &c.lamps. GENERAL ELECTRIC CO., Ltd. and RANDALL, E. L., Magnet House, Kingsway, London. Nov. 4, 1930, No. 33160. [Class 75 (iv).] In a street or like lamp in which a number of reflectors 1 a r e arrangec above a light source 2 to concentrate rays along a number of desired directions and a number of refracting mem. bers are arranged below the reflectors to concentrate in the said directions rays which do not impinge on the reflectors, the refracting members each comprise a glass strip 4 having prisms on its inner and/or outer faces. The reflectors 1 may be sections of paraboloids, ellipsoids or spheres, and made of mirrored, hammered, fluted or diffusing glass mounted in a metal frame 5 cast with lugs 6, 14. The strips 4 may be curved, of rectangular shape or of varying width, and they may be carried by arms 9 on a bracket 8 which is engaged by the screwed lower ends of spindles 7 rotatably mounted in the lugs 6. The refracting members 4 may therefore be raised or lowered for adjustment purposes by rotating the spindles 7. The bulb 2 is suspended from a cylindrical member 11 which, can be moved up and down on a vertical cylindrical guide 12 by rotating a screw-threaded spindle 13 which engages the lug 14. The lamp may comprise an octagonal housing having top panels 15 made of copper,. end panels 18 of lightly diffusing glass, and' side and hinged bottom panels 16, 17 of heavier, diffusing glass.
Patent GB-324447-A (GB)
Title: Improvements in or relating to light slits for sound recording or reproduction
IPC: G11B7/00
Filed: 1928-11-14
Abstract: 324,447. Pereira, F. A., and British Talking Pictures, Ltd. Nov. 14, 1928. Optical apparatus. - A light slit unit for soundrecording and reproducing apparatus is made by scoring, etching, &c. a line in an opaque plate or in an opaque coating on a transparent support, or by spacing two opaque members apart the necessary distance to provide the slit between them. The slit may be coated or filled in with transparent enamel which may be fused to the support. Fig. 2 shows a slit 3 made in a coating 2 of black ceramic enamel, non-actinic glass, or burnt-in metal on a transparent glass &c. support 1. A lens 4 may be attached to the support to condense the light on the slit, or alternatively, the support may be partially cut away opposite to the slit. Fig. 5 shows the slit 12 provided by two spaced-apart coated supports 9, 10, the slit being filled with transparent powdered enamel which is fused to unite the supports and furnish a transparent slit. The slit unit may form one of the raceways of a film gate.
Patent GB-1324000-A (GB)
Title: Pumping station sphere handling method and system
IPC: F16L55/46
Filed: 1971-07-15
Abstract: 1324000 Controlling pipe-line pigs M H GROVE and J M E GROVE [trading as M & J DEVELOPMENT CO] 15 July 1971 [30 July 1970] 33350/71 Heading F2N Product-separating spheres are withdrawn from a pipe-line upstream of a pumping station and stored, and the interface between two fluids is sensed downstream of the pump and used to control launching of spheres from the store back into the pipeline in a desired relationship to the interface. The system shown is for use when three product separating spheres are associated with each interface, the leading sphere being in the interface region and the second and third spheres being located at predetermined spacings behind the leading sphere. The normal fluid flow path through the station is from upstream line portion 10a, via junctions 17, 19, valve 52, pump 11 and valve 33 to downstream line portion 10b. When the leading sphere is detected upstream of the pump station by detector D1, timers T1 and T2 begin an upcount and a controller C2 opens a valve V1 at the top of the sphere magazine 21. When the leading sphere is detected at D2, the upcount in the timers is stopped, the number stored in the timers being representative of the velocity of fluid flow. The leading sphere and subsequently the second and third spheres pass via junctions 17 and 19 to the upper part 21b of the magazine. When the interface is detected by a specific gravity monitor 36, a controller C1 retracts a pin 22, to free the lowermost sphere in the magazine, and opens a valve V3, to inject liquid via line 31 into the magazine to launch the lowermost sphere. Controller C1 also starts the countdown of the number stored in timer T1. The countdown is slower than the upcount by a factor dependent upon the desired spacing between the first sphere (already launched) and the second sphere (which is launched when T1 reaches zero). When T1 reaches zero it also triggers the countdown of T2, this being at a rate dependent upon the desired separation of the second and third spheres. On reaching zero, T2 causes the launching of the third sphere, the closing of valve V1 and the opening of valve V2 to allow the three spheres trapped during this cycle to fall from magazine section 21b to section 21a, ready for launching in the following cycle. A grid 20 in junction 19 prevents spheres from passing to the pump 11. Junction 17 may include a power-operated pivoted gate, Fig. 2 (not shown). An electrical fault in the circuit of the pump 11 may be sensed by a circuit 54, thus causing a controller 53 to open a valve V4, bypassing the pump, and to close valves 52, 33, isolating the pump.
Patent GB-1353567-A (GB)
Title: Water repellent compounds
IPC: C07F7/12
Filed: 1972-07-17
Abstract: 1353567 Water - repellent silanes LOCKHEED AIRCRAFT CORP 17 July 1972 [26 July 1971] 33417/72 Heading C3S [Also in Division C4] Novel compounds effective for long-term use as rain-repellent coatings on windshields, windows or other transparent and non-transparent surfaces comprise compounds of the formula (wherein R denotes -(CH 2 ) 3 CH 3 , R<SP>1</SP> denotes -CH 3 , R<SP>11</SP> denotes -(CH 2 ) 17 CH 3  and X denotes either all -OH or all -Cl); or (wherein R denotes -(CH 2 ) 13 CH 3 , X denotes -OH or -Cl and R<SP>1</SP> denotes either Chlorotributyl - tin - bis - (chloromethyloctadecylsilane) chelate is prepared by reacting together methyloctadecyldichlorosilane, chlorotributyltin and anhydrous CuCl 2 , and may be hydrolysed with aqueous isopropanolic KOH to give hydroxytributyl - tin - bis - (hydroxymethyloctadecylsilane) chelate. Bis - dodecanethiol - tetradecylchlorosilane is prepared by reacting tetradecyltrichlorosilane with 1-dodecanethiol. Bis - hydroxyhexafluoropropanetetradecylchlorosilane is prepared by reacting tetradecyltrichlorosilane with 2,2-dihydroxyhexafluoropropane. The compounds may be dissolved in fluorocarbon propellants with or without 2-propanol and dispensed from aerosol cans.
Patent GB-1435542-A (GB)
Title: Locking means for fuel bundles
IPC: G21C3/33
Filed: 1973-07-13
Abstract: 1435542 Fuel elements EXXON NUCLEAR CO Inc 13 July 1973 [19 July 1972] 33520/73 Heading G6C In a nuclear power reactor fuel bundle having a plurality of fuel rods disposed between two end plates positioned by tie rods extending therebetween, the assembled bundle is secured by one or more locking forks which pass through slots in the tie rod ends. As shown in Fig. 3, a fuel bundle comprises fuel rods 14 mounted between upper and lower end plates 10, 36. An end pin 20 on each fuel rod 14 fits within an opening in the lower end plate 36 while the upper end of each fuel rod 14 is a sliding fit within an opening in the upper end plate 10 with a spring 24 surrounding the upper end of the fuel rod 14 in compression between the end plate 10 and a shoulder on the fuel rod. At each corner of the fuel bundle, target rods 15 are provided for the production of commercial radioisotopes. Eight tie rods 16 (only one shown) are provided between the end plates, being assembled into the lower end plate 36 by means of threaded end portions 26. At its upper end, each tie rod 26 passes through an opening formed in a raised boss 32 provided on the upper end plate 10. Each tie rod 16 contains a longitudinal slot 28 which extends partially above the boss 32 and the tie rods are locked in place by the insertion of locking forks. There are two of these locking forks, each with four tines 18a, 18b and one tine passes through the slot 28 of each of the tie rods 16. The upper end plate 10 is under an upward force exerted by the springs 24 and by applying a downward force on the end plate 10 by means of a bundle 12, the locking pressure of the springs 24 is relieved and withdrawal of the locking forks from the slots 28 permitted. The end plate 10 can then be removed and it is possible for the fuel rods 14 to be removed easily, e.g. for replacement of damaged fuel rods, since they only rest in the openings in the lower end plate 36 and are not secured by a mechanical connection. A set screw 30 at the upper end of each tie rod 16 extends into the slot 28 to enable the effective length of each tie rod to be adjusted. When the locking forks are in position, recesses 34 formed on the undersides of the tines engage the bosses 32.
Patent GB-656936-A (GB)
Title: Separation of sulphur s
Inventor: WILK MARTIN BRADBURY
IPC: C01B17/12
Filed: 1948-12-30
Abstract: 656,936. Radioactive sulphur. SCIENTIFIC & INDUSTRIAL RESEARCH, HONORARY ADVISORY COUNCIL FOR. Dec. 30, 1948, No. 33560. [Class 39 (iv)] [Also in Group I] Radioactive sulphur is separated from neutronirradiated water-soluble chlorides by passing air upwards through a filter in a reaction zone into an aqueous solution of the chlorides in the presence of hydrogen chloride gas while keeping the temperature of the reaction low to facilitate precipitation of the chlorides, the flow of air being discontinued to allow the sulphur to pass through the filter which retains the precipitated chlorides. The reaction vessel 1 is provided with a restricted lower portion 2 in which is a filter 3 made, e.g. of sintered glass. Air is passed in through the tube 4 which has a valve 5, the control of which can be effected remotely, the air escaping by the vent 7. Cooling is effected by the cooling jacket 10, while hydrogen chloride gas passes in by the tube 8.
Patent GB-776813-A (GB)
Title: Improvements in or relating to side delivery rakes
IPC: A01D78/00
Filed: 1953-12-03
Abstract: 776,813. Side-delivery rakes. VAN DER LELY N.V., C. Dec. 3, 1953 [Dec. 15, 1952], No. 33594/53. Class 6(3). A side-delivery rake of the type having oblique rotary rakewheels driven by ground-contact is characterized in that the rake-wheels have deformable peripheries so that several rake-teeth may be simultaneously in ground-contact. In figure 1 the wheels 16, 17 are carried in pairs on a two-armed frame 10, 11 pivoted to the front of a tractor 1 about a horizontal axis 5, the arms being integral with a pivoted boss 9 which is adjustable vertically on a vertical support 6. Each rake-wheel comprises a hub 14 connected by spokes 19 to a rim 20. Arms 23 are pivoted to the rim and to tubular bushes 26 to which are attached tines 27, the tines being all interconnected by continuous undulated spring 28 carrying further tines 29. In Figure 3, rake wheels 43, 44 are mounted on stub-axles 31, 32, 33, 34 rigidly projecting rearwardly from a frame 35. The frame is mounted floatingly on castors 39, 40 attached by spring- loaded parallelogram-linkages 41 to the frame 35. Each rake-wheel in this modification comprises a flexible spring-band 45 carrying tines 50 on its outer side and provided on its inner side with radial projections 46 each linked at its end to the rim 52 of an inner wheel structure 43 comprising a hub 51 and spokes 53. The links 54 are U-shaped wires coupled by eyelets 55, 53A to the respective members 46, 52. Specifications 776,815, 776,816, 776,817 and 776,818 are referred to.
Patent GB-445370-A (GB)
Title: Improvements in or relating to game apparatus or appliances
IPC: A63D15/00
Filed: 1934-11-22
Abstract: 445,370. Table games. BROOKS, C. H., 51, Highbury Road, and STRINGER, E. A., (trading as STRINGER, W. H.), 20, Willow Bridge Street, both in Leicester. Nov. 22, 1934, No. 33618. [Class 132 (ii)] In a table game apparatus wherein a ball 3 is free to move in one direction along a channel 2 of less width than the diameter of the ball, return movement of the ball being prevented by pivoted catches 4 or like elements, the catches are pivotally attached to a longitudinal member 6<a> located centrally within the channel. As shown, the channel is inclined and the ball propelled there-along by a cue. The ball is retained in the position in which it comes to rest by one of a series of weighted levers or catches pivoted to an L-shaped strip located centrally and longitudinally within the channel. The space between each adjacent pair of catches is assigned a scoring value, and means comprising indexes 15 adjustable over a scale 12 is provided to keep the score. Balls propelled at too great a speed enter a recess 11 at the upper end of the channel. The channel may be formed in a wooden bar as shown, or may comprise a U-section metal strip, one arm of which is flanged to carry the scoring indications. Instead of propelling the ball with a cue, the channel may be arranged to rock.
Patent GB-1389873-A (GB)
Title: Method for preparing branched copolymers of ethylene with unsaturated silicon-containing monomers
IPC: C08F210/02
Filed: 1972-07-19
Abstract: 1389873 Silicon-containing ethylene copolymers VSESOJUZNY NAUCHNO-ISSLEDOVATELSKY INSTITUT PO PERERABOTKE NEFTI 19 July 1972 33728/72 Heading C3P [Also in Division D1] Branched copolymers of ethylene with 0À2 to 40 molar per cent of monomers of formula R<SP>1</SP>CH = CHSiR<SP>2</SP> m R<SP>3</SP> n (OR<SP>4</SP>) p  where R<SP>1</SP> is H or a saturated aliphatic radical, R<SP>2</SP> is a saturated aliphatic radical, R<SP>3</SP> is phenyl, R<SP>4</SP> is a saturated aliphatic radical or an aryl radical with not more than 2 aromatic rings, m is 0 to 2 when R<SP>1</SP> is H and 0 to 3 when R<SP>1</SP> is a saturated aliphatic radical, n is 0 to 3, p is 0 to 2 and m+n+p is 3, may be prepared by copolymerization at 40 to 300‹ C. and 150 to 3,500 atmospheres in the presence of a free radical polymerization initiator. The copolymers may be used to render fabrics and paper water-repellent by coating and/or impregnating, e.g. with a solution of the copolymer in a hydrocarbon or halogenated hydrocarbon solvent. Examples describe the copolymerization of ethylene with (1) vinylmethyldiethoxysilane, (4) vinyltriphenylsilane, (5) vinylphenyldimethoxysilane, (9) vinylmethyldidecyloxysilane and (11) methylvinyltrimethylsilane in the presence of di-t.butylperoxide; with (2) vinylpropyldiphenoxysilane in the presence of t.butylperbenzoate; with (3) vinyldibutylnaphthoxysilane and (6) vinyltriphenylsilane in the presence of cumene hydroperoxide; with (7) propylvinyldimethylphenylsilane and (10) vinyldimethyl-3,5-dimethylphenoxysilane in the presence of lauryl peroxide; and (8) vinyl methyldiethoxysilane in the presence of benzoyl peoxide.