baber/WOPTO huggingface dataset:
Patent GB-882996-A (GB)
Title: Improvements in and relating to potassium fertilisers
IPC: C05D1/00
Filed: 1957-12-13
Abstract: A granular free-flowing potassium fertilizer consists of potassium chloride, hydrated magnesium sulphate, boracite and micronutrients (at least copper, manganese, iron, tin and zinc) and containing 38 to 42% potassium (calculated as K2O), 12 to 18% MgSO4 and about 0,1 to 0,15% boron (calculated as B2O3), the particles being coated with a fine mixture of sylvine, rock salt, kierserite and anhydrite orgypsum.  In an example 107 parts crude potassium chloride, containing boracite and micronutrients and 2 parts of finely ground mixture of sylvine, rock salt, kieserite, anhydrite and gypsum is stirred with 65 parts of saturated aqueous solution of Epsom salt. The product is centrifuged out and dried.
Patent GB-1154226-A (GB)
Title: Aminoacetonitriles
IPC: C07C255/25
Filed: 1966-09-01
Abstract: 1,154,226. Aminonitriles. STANDARD OIL CO. 1 Sept., 1966 [29 Nov., 1965], No. 39134/66. Heading C2C. Aminoacetonitriles are obtained by (i) reacting in an acidic environment (A) ammonia or a mono- or polyprimary or secondary amine containing 1-20 carbon atoms in the form of its salt with a strong protic acid; (B) formaldehyde, and (C) hydrogen cyanide, under autogenous pressure at 40-120‹ C., (ii) cooling at least a part of the reaction mixture resulting from stage (i) to a temperature below 40‹ C. and separating the aminoacetonitrile from the mother liquor, (iii) replenishing the mother liquor from stage (ii) with reactants substantially in the same molar proportions as they were consumed in forming the aminonitrile, and (iv) recycling the replenished mother liquor from stage (iii) back to stage (i). In the examples nitrilotriacetonitrile, ethylamine diacetonitrile and ethylenediamine tetraacetonitrile are prepared and the latter is converted to the tetrasodium salt of ethylene diamine tetra-acetic acid.
Patent GB-1438525-A (GB)
Title: Gas cooled nuclear reactors
IPC: G21C19/303
Filed: 1973-08-21
Abstract: 1438525 Graphite absorber CENTRAL ELECTRICITY GENERATING BOARD 21 Aug 1974 [21 Aug 1973] 39392/73 Heading B1L An absorber for the coolant gas of a nuclear reactor comprises a graphite body having holes therein with a hydraulic diameter (HD) of 1-6 mm and a ratio of length to equivalent HD of 170-1000 (where HD is the ratio of 4 times the cross sectional area of the holes to the wetted perimeter).
Patent GB-1435764-A (GB)
Title: Recording meter
IPC: G01D11/10
Filed: 1973-08-21
Abstract: 1435764 Chart recorders YOKOGAWA ELECTRIC WORKS Ltd 21 Aug 1973 [6 Sept 1972] 39437/73 Heading G1J In a chart recorder of the type in which a pen 53 is moved arcuately about a pivot point 58 in accordance with instantaneous measured values as a chart 3 is driven linearly beneath the pen and in a direction generally perpendicular to the pen movement, the pen 53 is drivably connected by way of a stretchable link 82 on one side of the pen and a non-stretchable link 81 on the other side to a common pulley 41 which is rotated by a servomotor. The link 82 may comprise a wire having a spring 83 intermediate its ends and the link 81 may be a stainless steel band. Such link 81 may be attached to a mounting plate 7 which is adjustable relative to a frame 52 supporting the pen 53 to enable the zero to be set. The link 81 is bent around an arcuate surface 75 on the plate 7 so that its point of contact varies and provides a correction for error due to arcuate movement of the pen across a transverse linear scale.
Patent GB-952091-A (GB)
Title: Process for the production of hypoxanthine derivatives
IPC: C12P19/32
Filed: 1960-11-18
Abstract: Hypoxanthine, inosine and/or inosine-51-monophosphate are produced by cultivating an adenine-requiring auxotroph of a microorganism in a medium containing a growth-limiting amount of adenine and substantially large amounts of other nutrient sources than are required for propagation of said auxotroph, and continuing cultivation after growth has substantially ceased in order to accumulate the desired products.  In a modification, the auxotroph is grown in a complete medium and the resulting cells cultivated in a medium containing substantially no adenine as a non-proliferating cell suspension.  The products may be recovered from the cells or the culture medium.  Examples describe the use of auxotrophs of Bacillus subtilis, Saccharomyces cereviciae, Escherichia coli. Bacillus megatherium, Bacillus cereus, Torula utilis, Streptomyces fradiae, Penicillium citrinum and Aspergillus oryzae obtained by radiation induced mutation of the parent strains.
Patent GB-997351-A (GB)
Title: Improvements in, or relating to, holders for starter switches for fluorescent lamps
IPC: H01R33/06
Filed: 1960-11-23
Abstract: 997,351. Two part couplings. J. PEARSON. Feb. 23, 1962 [Nov. 23, 1960], No. 40215/60. Heading H2E. A holder for a fluorescent lamp starter switch 18 (Fig. 1) comprises a cylindrical body 1 housing spring loaded plunger contact 15, and a detachable sleeve 9 which has a transverse partition 10 having "keyholes" 11 through which the headed contacts 19 of the starter switch connect with the plunger contacts 15. The head of the plunger contacts are wider than the narrow portion of the keyhole, and are positioned as shown in Fig. 2. The plungers slide in conductive members 4 which may have terminals for wiring, or may incorporate a holder for one end of a fluorescent lamp having two-pin contacts at each end (Fig. 5, not shown). The projecting studs 12, 13 (Fig. 2) hold the sleeve 9 on the body 1 against the springs of the plungers. These studs may also locate the holder in the fluorescent lamp fitting (Figs. 3 and 4, not shown).
Patent GB-861337-A (GB)
Title: Apparatus for measuring large fluid flows
IPC: G01F1/68
Filed: 1957-12-31
Abstract: 861,337. Mixing gaseous streams. SOC. L'AIR LIQUIDE, SOC. ANON. POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES G. CLAUDE. Dec. 31, 1957 [Jan. 2, 1957], No. 40436/57. Class 86 [Also in Group XXXVIII] The temperature and pressure of fluid flowing at a high rate in a wide pipe are equalized over the whole cross-section of the pipe by means of the arrangement of baffles shown, the fluid entering at 1 and passing the regions 4 and 32 to become homogeneous at 33. A partition 3 deflects the fluid towards the outside of the chamber and heat exchange takes place across the partitions 3, 32 and 34. Such a device is placed at each end of a flowmeter (see Group XXXVIII), wherein a portion of the flow is measured and the results integrated over the whole cross-section of the pipe.
Patent GB-995946-A (GB)
Title: Slide bearing
IPC: F16C33/20
Filed: 1963-10-16
Abstract: 995,946. Bearings; expanding pulleys. R. CLAAS. Oct. 16, 1963 [Oct. 16, 1962], No. 40884/63. Headings F2A and F2D. A bearing 17, for a pulley having an axially fixed member 10, keyed on a shaft 12, and an axially displaceable member 14, splined thereto, whose position is controlled by bars 15, comprises a bush made of resilient plastic material having a longitudinal slot 20 and external flanges 18 to provide axial support. The bush is inserted into the housing 16 by compressing the bush until the regions adjacent the slot 20 overlap and permit one of the flanges 18 to pass through the housing. The bush may have a portion of enlarged diameter to define a lubricating groove 19. The bush may be secured in position by a lubricating ripple.
Patent GB-1588641-A (GB)
Title: Manufacture of dust-free and non-caking granules
IPC: C05G3/20
Filed: 1977-10-03
Abstract: Dust-free and non-caking granular materials, especially broken granules from fertilisers and salts are prepared by applying coatings consisting of polymer mixtures. The granular materials have applied to them aqueous suspensions or solutions of     a) urea-aldehyde condensation products and/or alkylol ureas and   b) polyenes, the amount of solid applied being from 0.3 to 4.0% by weight, based on the amount of granular material.
Patent GB-1294511-A (GB)
Title: An educational aid
Inventor: HADJIGEORGHIOU ANDREAS
IPC: G09B23/04
Filed: 1970-08-26
Abstract: 1294511 Educational aid A HADJIGEORGHIOU 21 June 1971 [26 Aug 1970] 40992/70 Heading G5G An educational aid for teaching geometry comprises a base 1, a circular disc 2 rotatably mounted on the base, a circle 4 marked on the base concentric with the disc, a diametrical line 5 marked on the disc to divide the disc into two semi-circles, radial lines 8 marked on the disc in one of the semi-circles to divide the respective semi-circle into a plurality of sectors, straight lines 9 marked on the disc in the other semicircle so as to radiate from a common point on said circle for any given position of the disc relative to the base, marked figures 15, 16 indicating the angles made by said lines with given reference directions, and a plurality of elements 14 arranged in coincidence with said circle such that a piece of string or an elastic band can be extended between any selected group of said elements to define one or more angles at the circumference of the circle and/or at the centre of the circle. The elements 14 may consist of vertically-arranged pins.
Patent GB-860314-A (GB)
Title: Improvements in gas impingement starters for gas turbine engines
IPC: F02C7/27
Filed: 1958-12-19
Abstract: 860,314. Gas-turbine plant. GENERAL ELECTRIC CO. Dec. 19, 1958 [Jan. 2, 1958], No. 41042/58. Class 110 (3). A gas starter for a gas-turbine engine having a plurality of stator blades 22 for directing the working fluid against the rotor blades 40, comprises blade extensions 58 which are formed with substantially the same aerofoil contours as the blades 22 and which with inclined walls 46, 52 provide a passage through an opening 18 in the engine casing 1 for turning the starting gas tangentially with respect to the aerofoil contours, Fig. 3, and at the same time radially and axially with respect to the rotor axis, the passage being situated radially outwardly from the working fluid passage of the gas-turbine engine. A pair of circumferentially elongated housings 2 are located on opposite sides of the turbine casing 1, each housing having an opening 5 to admit. the compressed gas in a direction opposite to that of the turbine rotation. Two circumferential slots, 18 in the rotor casing and 44 in the shroud 26 are provided and extensions of the stator blades extend radially outwards into these slots. Passageways connecting the interior of housing 2 with the turbine blades are formed by the walls 46, 52 and wall 46 projects forwardly from the edge of slot 18 into the housing, the shoot so formed has side walls 50 and is divided up by the stator blade extensions. The walls 46, 52 give the starting gas a radial and an axial component of velocity while the contours 62, 64 of the stator blade extensions 58 deflect the gas tangentially on to the turbine blades 40. In another embodiment stub blades are mounted on the wall 16 of the housing-extending radially inwards and although separate from the stator blades form in effect extensions thereof.
Patent GB-1072220-A (GB)
Title: Arrangements of fluid-control valves
IPC: F16K31/363
Filed: 1965-09-28
Abstract: 1,072,220. Valves. HOERBIGER VENTILWERKE A.G. Sept. 28, 1965 [Sept. 30, 1964], No. 41113/65. Heading F2V. Flow between an inlet 2 and a working part 3, and between the latter and an exhaust port 10 is controlled by a pair of interconnected valves 12, 13 which are urged to the positions shown by a spring 21 so that the inlet 2 is open to the port 3. When the apparatus connected to the latter has completed its operation the pressure rises in the part 3 and opens the safety valve 12. The interconnecting rod 25 between the valves is thereby lowered and the valve 13 closes under the action of its own light spring 14 and is held closed by the inlet pressure; upon shutting-off the last-named the valves return to the positions shown. Valve 13 is open only when valve 12 is closed and vice versa. The spring 21 is adjustable by changing washers 28. Both valves have sealing gaskets 15, 22, the former being on an hexagonal closure and the latter around the small diameter of a differential-area piston 20 which provides for rapid opening of the valve 12; the larger piston diameter is a clearance fit in its cylinder to provide a path for the exhaust fluid.
Patent GB-874530-A (GB)
Title: Improvements in or relating to arrangements for deriving picture signals from radar pictures
IPC: H04N3/32
Filed: 1959-12-08
Abstract: 874,530. Radar. TELEFUNKEN G.m.b.H. Dec. 8, 1959 [Dec. 11, 1958], No. 41683/59. Class 40(7) [Also in Group XL(b) ]  A radar P.P.I. picture 4 is scanned by a television camera 5 for transmission to a remote display 11 or magnetic recorder, the scanning being controlled to proceed at normal speed over predetermined areas of interest and at an increased speed, e.g. 100 times normal, over the remaining areas of no interest by means of an arrangement comprising an appropriately formed mask 7<SP>1</SP> which is scanned in synchronism with camera 5 by a flying-spot scanner 7 and viewed by a photo-electric cell 8 whose output is applied through an amplifier 9 to control the scanning generator 6. The cell output may also be employed to eliminate the signals due to areas of no interest either by blocking picture amplifier 10 or by signal suppression in camera 5. Synchronizing pulses may be added to the picture signals as indicated by the dotted connection between generator 6 and amplifier 10. The television camera employs conventional scanning in Cartesian co-ordinates, the lines preferably running approximately perpendicular to the length of the areas of interest.
Patent GB-1281338-A (GB)
Title: Improvements in or relating to oil filler plugs
Inventor: BUTLER WILLIAM WELLS
IPC: F16N21/06
Filed: 1968-08-31
Abstract: 1281338 Container closures J H FENNER & CO Ltd 29 Aug 1969 [31 Aug 1968] 41708/68 Heading B8T [Also in Division B1] The body 3 of an oil filler breather plug includes an externally screw-threaded portion for engagement in a screw-threaded aperture in a machine casing, ventillation passages 5, 6 for venting the machine casing to an exit port or ports at the exterior of the body and a filter element, formed of interstitial plastics material, located externally of the plug body and enclosing said port or ports. The filter element may be annular and held between shoulders 11 on the plug body and a screw-down cap 9. The body may be of metal or rigid plastics material.
Patent GB-1164208-A (GB)
Title: Improvements in or relating to high voltage cable cores.
IPC: H01B9/06
Filed: 1967-09-13
Abstract: 1,164,208. Cables. SUMITOMO ELECTRIC INDUSTRIES Ltd. 13 Sept., 1967 [27 Sept., 1966 (2)], No. 41781/67. Heading H1A. A high voltage cable comprises a hollow or stranded conductor 1 filled with silicone oil or a mixture of silicone and a hydrocarbon oil 6, an extruded cross-linked polyethylene insulating layer 2, a semi-conductive layer 3, e.g. a polyolefin loaded with carbon black, a metal shield 4, e.g. of copper tape or extruded lead or aluminium, and an anti-corrosion layer 5 of p.v.c. or chloroprene. At all times, the oil fills the conductor/insulation interface.
Patent GB-1293879-A (GB)
Title: Electrode for arc welding workpieces made of cast iron with spheroidal graphite
IPC: B23K35/30
Filed: 1970-09-01
Abstract: 1293879 Welding by fusion BUDERUS'SCHE EISENWERKE 1 Sept 1970 [25 Oct 1969] 41793/70 Heading B3R A consumable, arc-welding, electrode, for welding cast iron containing spheroidal graphite, comprises a soft iron wire core with a coating containing, by weight of the coating, at least 7% Ca in the form of Ca-Si alloy with 35% Ca. In a modification the Ca is replaced wholly or partly by an equivalent quantity of Sr and/or Ba. The welding process may include pre-heating to about 350‹ C., and subsequent heat-treatment.
Patent GB-905712-A (GB)
Title: Supporting system for an automotive drive unit
IPC: B60K5/02
Filed: 1958-12-31
Abstract: 905,712. Road vehicle engine mountings. SOC. INDUSTRIELLE DE MECANIQUE ET CARROSSERIE AUTOMOBILE. Dec. 31, 1958 [Jan. 10, 1958], No. 42166/58. Class 79(3). [Also in Group XXXII] In an automotive vehicle, the motor and the casings of part of the intermediate transmission components between the motor and the drive wheels, e.g. the clutch and change speed gear, are rigidly interconnected with one another and are supported intermediate the ends of the casing structure at the centre of a transverse spring whose outer ends are connected to supports in which the drive wheels are journalled, means also being provided for restraining the structure against longitudinal and lateral displacement while permitting vertical displacement. A motor 1, clutch 2, differential gear 4 and transmission box 3 are connected together to form an integral unit supported by the leaf spring 5 connected at 6 to the wheel supports 7. At one end the structure is connected by a leaf spring 10 to a pivot 11 secured to the frame 9. At the other end a ball member 12 is slidable within a vertical slot 13 permitting vertical but not lateral or longitudinal movement. Links 14 are pivoted to the wheel supports 7 and to the frame 9 and are attached to coil springs 15 secured to brackets attached to the frame. Specification 899,276 is referred to.
Patent GB-1516897-A (GB)
Title: Container closures
IPC: B65D50/04
Filed: 1975-10-15
Abstract: 1516897 Safety screw-closures ROCKWARE GROUP Ltd 11 Oct 1976 [15 Dot 1975] 42322/75 Heading B8T As shown, a safety closure assembly comprises in combination, a container neck 2 having a helical thread 3 with stop surface 4 and a cap 5 having on its interior surface ribs 6, 7 which define parallel helical paths along which thread 3 can travel, one path having its lead-in blocked by a surface 11. When the cap is applied, thread 3 automatically travels along the non-blocked path; however, on tightening the cap axial pressure thus generated causes thread 3 to snap over relatively low rib 7 into the blocked path so that on subsequently attempting to unscrew the cap rotation is prevented by blocking surface 11 interfering with stop surface 4. To remove the cap, thread 3 is snapped back into the non-blocked path by applying downward axial pressure to the cap. In modifications, ribs 6, 7 may be on the cap rather than neck 2 and instead of a cap, a stopper may be provided with a helical thread or channel defining ribs with the interior of the co-operating container neck provided with channel defining ribs or a helical thread respectively. The neck may be of rigid plastics or glass with the cap of relatively flexible plastics such as polypropylene, polyethylene or polystyrene; alternatively the cap could be of metal if constructed with sufficient resilience. A sealing disc 9 may be provided held in position by a rib 8.
Patent GB-896498-A (GB)
Title: Strand tension device
IPC: B65H59/28
Filed: 1960-12-09
Abstract: 896,498. Thread - tensioning devices. CARROLL, R. L. Dec. 9, 1960, No. 42434/60. Class 120(2) In a strand-tensioner of the type including fixed and movable gates 1, 2, Fig. 2, carrying ceramic fingers between which the yarn travels, each finger has a strand-engaging recess with a convex surface 12, Fig. 5 bounded by convex shoulders 13; a downwardly-inclined surface at its outer end terminating in bifurcated portions; and a channel 6 on its under-surface extending upwardly at a right angle 7 and thence outwardly through the downwardly-inclined surface between the bifurcated portions, a metal finger-support 3 carried by the gate to which the finger is attached, being located in the channel and cemented &c. to the fingers. The portions 9 of the finger supports carried by each gate are integrally connected to a bar 11, so that the gates can be separated for threading-up. The portion 12 of the first finger is shorter than those of the others to locate the thread centrally, and the distance between adjacent thread surfaces gradually increases. A stop limits the relative positions of the gates.
Patent GB-1168960-A (GB)
Title: Separation of Americium from Plutonium
IPC: C01G56/00
Filed: 1968-09-09
Abstract: 1,168,960. Separation of americium and plutonium. UNITED STATES ATOMIC ENERGY COMMISSION. 9 Sept., 1968 [20 Oct., 1967], No. 42779/68. Heading G6R. Americium and plutonium present in a molten salt solution are separated from one another by bubbling a mixture of oxygen and argon into the molten salt to precipitate PuO 2 , leaving americium in solution. The salt solution treated may be a NaCl-KCl melt from an electrorefining process for the recovery of plutonium.
Patent GB-1474775-A (GB)
Title: Isoquinolines
IPC: C07D217/22
Filed: 1974-10-03
Abstract: 1474775 Isoquinolines SANDOZ Ltd 3 Oct 1974 [8 Oct 1973] 42909/74 Heading C2C Compounds of the general formula I (R=C 3-7  alkyl or cycloalkyl, C 3-7  cycloalkyl substituted by C 1-4  alkyl, C 5-9  α-dialkylpropynyl or α-dialkylallyl, C 2-7  hydroxyalkyl in which the OH group is separated from the nitrogen atom by at least two carbon atoms, phenethyl optionally substituted by halogen or C 1-4  alkyl or alkoxy, adamantyl; R 1 =H, halogen, C 1-4  alkyl or alkoxy, 5, 6 or 7-CF 3 , 4 or 5-NO 2  or C 1-4  alkanoylamino; R 2 =H or (R 1  = C 1-4  alkyl) C 1-4  alkyl or (R 1  = C 1-4  alkoxy) C 1-4  alkoxy; provided that the 8-position of the isoquinoline ring is unsubstituted and no 3 or 4-F substituent is present) and their salts are prepared by (a) reacting a compound of the Formula II (X = leaving atom or group) with or (b) hydrolysing a compound of the Formula IV (ZZ<SP>1</SP>C = hydrolysable group), optionally followed by salt formation. The 2,3-dihydroxypropylamines are prepared by reacting 2,3-dihydroxypropyl chloride or glycidol with RNH 2 , the compounds of Formula IV are prepared by reacting a compound of Formula II with a compound of Formula VI and the latter compounds are prepared by reacting the appropriate 2,3-dihydroxypropylamine and aldehyde or ketone. The above compounds are #-adrenergic blocking agents, and may be administered in the form of pharmaceutical preparations containing them in association with a carrier.
Patent GB-1272810-A (GB)
Title: Preparation and purification of crystalline boron
IPC: C01B35/02
Filed: 1969-08-29
Abstract: 1,272,810. Boron. UNITED STATES ATOMIC ENERGY COMMISSION. 29 Aug., 1969 [11 Sept., 1968], No. 43023/69. Heading C1A. Pure crystalline boron is obtained by crushing impure amorphous (including microcrystalline) boron; contacting the particles with first and second liquids (together or in either order) having densities respectively lower and higher than the required density of boron particles; isolating a fraction of intermediate density by discarding those particles that float on the first liquid, sink on the second liquid or remain suspended in either liquid; pelleting this fraction; sintering, cooling and crushing the pellets to form a mixture of varying particle sizes; and screening the mixture to form larger and smaller particle size fractions of higher and lower boron purity respectively. Each of the isolated fractions may then be re-crushed and rescreened to provide further fractions of differing purity, the fraction of higher purity being retained on the screen. The density separation may be effected in 2 stages by centrifuging consecutively with high and low density liquids (e.g. mixtures of chloroform and tetrabromoethane) or vice versa, or in 1 stage using both liquids in a centrifuge or density gradient column. The sintering step, which may be carried out at 1-4 x 10<SP>-4</SP> torr for 2-3 mins. at 10-20 C. below the melting point of boron, removes gaseous impurities, results in crystal growth and causes residual impurities to migrate to the core of each pellet. The pellets are cooled at a rate preferably not exceeding 85 C./min. The relatively purer pellet shells form the larger size particle fraction produced by the subsequent crushing and screening. In examples, boron of purity better than 98À5% is obtained from (a) a fraction of density 2À16-2À32 g/c.c. separated from a boron-10 enriched feed; (b) a fraction of density 2À33-2À37 separated from a natural isotopic composition comprising 18% boron-10, 69% other boron isotopes and more than 4% Mg.