baber/WOPTO huggingface dataset:
Patent GB-1399838-A (GB)
Title: Metal casting apparatus
IPC: B22D18/04
Filed: 1971-07-01
Abstract: 1399838 Pressure die casting machines DIMO HOLDINGS Ltd 28 June 1972 [1 July 1971] 30847/71 Heading B3F A low pressure die casting apparatus comprises a furnace 2 and a supporting structure for holding a die over the furnace in co-operation with a feed duct 14, the furnace and the entire supporting structure being capable of relative lateral disengagement, the lateral movement being substantially independent of any further disengaging action. In the embodiment shown, the said supporting structure includes upper and lower plates 9 and 8 connected by rods 10 and fixed to a column 5. An upper platen 11 carrying an upper die half slides on the rods 10 and is actuated by an hydraulic or pneumatic cylinder 12. The column 5 may be raised or lowered by a jack 6 and is rotatable. During the casting operation, the feed duct 14 co-operates with a nozzle 16 leading to a lower die half mounted on the plate 8. After the die has been filled, the platen 11 is raised to open the die and permit removal of the casting. When necessary, the entire die supporting structure may be moved to an inoperative position by actuating the jack 6 to break the connection between the duct 14 and nozzle 16 and swinging the frame to said position. In a modification the column 5 is movable in a vertical direction only, the frame pivotable about the column. Other embodiments include arrangements in which there is one furnace and two die supporting structures, two furnaces and one supporting structure, and two furnaces and two supporting structures. In a further modification, Fig. 8 (not shown) the furnace is mounted on a turntable 29 which rotates about a vertical axis centred on the column (17), the die supporting structure being rendered non-rotatable by pegs (27) extending through a sleeve surrounding the column (17) and engaging in grooves in the column.
Patent GB-300577-A (GB)
Title: Improvements in or relating to the cascading of induction and commutator dynamo-electric machines
IPC: H02K17/38
Filed: 1928-10-24
Abstract: 300,577. Maschinenfabrik Oerlikon. Nov. 15, 1927, [Convention date]. Alternating-current indiiction machines.-An induction machine 2 is cascaded for power factor correction with a compensated commutator machine 3 of the frequency convertor type driven independently of the main machine 2 by an asynchronous motor 5 and the slip-ring side of the power factor corrector is shunt or compound excited from the supply network. The slip-rings of the cascade machine 3 may be connected to the mains 1 through a shunt transformer 4, an additional current transformer being connected in series with the machine 2 for compound exitation. The motor 5 is provided with the regulatable resistance 6 in the slip current.
Patent GB-869298-A (GB)
Title: Process for the production of polymeric unsaturated ester or polyester resins
IPC: C08F22/00
Filed: 1957-10-02
Abstract: A polymeric unsaturated ester resin, soluble in aromatic hydrocarbons, acetic acid esters and ketones, is made by heating in the absence of a polymerization catalyst (1) at least one a , b -unsaturated dicarboxylic acid or ester-forming derivative thereof and (2) at least one monohydric ether alcohol having at least two ethylenic double bonds in a b -g -position to ether oxygen.  As additional reactants there may be used mono-, di- or poly-hydric alcohols which may contain one b , g -unsaturated ether radical; hydroxy acids; monocarboxylic acids (including oil fatty acids); saturated dicarboxylic acids; maleic acid adducts; or fatty oils. The Specification contains lists of suitable reactants.  Reaction may be effected in the melt or in the presence of azeotripic entraining agents and possibly in the presence of hydroquinone or triphenyl phosphite.  The products may be used in the manufacture of lacquers, castings, mouldings, impregnating compositions or sealing compositions, if desired in admixture with conventional driers, radical releasing catalysts or unsaturated monomers, e.g. styrene, vinyl acetate or methyl methacrylate.  In examples, resins were made by reacting (1) Maleic anhydride and trimethylol propanediallyl ether; (2) Maleic anhydride, trimethylol ethane-diallyl ether and ethylene glycol: the product was copolymerized with styrene in the presence of cobalt naphthenate and 1-hydroxy-11-hydroperoxydicyclohexyl peroxide; (3) Maleic anhydride and the diallyl ether of 3, 3-dimethylolbutanol-2; (4) Maleic anhydride, and 1,3,5-hexanetriol-diallyl ether; (5) A polyester from maleic anhydride, 1, 6-hexanediol and phthalic anhydride, with pentaerythritol-triallyl ether, benzyl alcohol and maleic anhydride; (6) A polyester from fumaric acid, diethylene glycol and phthalic anhydride, with pentaerythritol diallyl-monobenzyl ether; (7) itaconic acid, trimethylol propane-diallyl ether, phthalic anhydride and diethylene glycol; (8) Maleic anhydride, trimethylol propane-dimethallyl ether (free from peroxide), and b , b -bis-(4-hydroxycyclohexyl)-propane; (9) Maleic anhydride, glycerol-a -g -diethallyl ether, 2,2-dimethyl-1,3-propanediol and phthalic anhydride; (10) A polyester from maleic anhydride and diethylene glycol, with 1, 4-butene-2, 3-diol-monoallyl ether; (11) Maleic anhydride, trimethylol propane-diallyl ether, trimethylol propane-monoallyl ether, hydrogenated abietic acid, diethylene glycol and castor oil.  Specification 731,226 is referred to.
Patent GB-324137-A (GB)
Title: Improvement in steam condensing apparatus
IPC: F28B9/10
Filed: 1928-10-26
Abstract: 324,137. Marks, Sir G. C., (Ingersoll Rand Co.). Oct. 26, 1928. Condenser systems.-In condensing apparatus conprising a main steam condenser of large capacity and relatively high cooling water velocity, and a cooler and devaporizer for air and incondensible gases from the main condenser, the velocity of the cooling water in the cooler and devaporizer is low compared with that of the cooling water in the main condenser. Suggested velocities are 6 to 10 feet per second in the main condenser and 3 to 5 feet per second respectively in the cooler and devaporizer. From a main condenser A, Fig. 1, comprising a steam inlet D and condensate outlet F, hot air and uncondensible gases pass through an outlet E to a cooler and devaporizer G provided with several banks of tubes K, L, O, P, - - T, Fig. 2. Cold water supplied at X<1> passes in succession through the tube banks. K, L, O to an outlet d and the hot air &c. passes along in reverse direction along and around partitions e, f to cool it and contract it to minimum dimensions. Steam ejectors j draw the cooled air &c. through outlets h into an inter-condenser formed integral with the cooler and comprising tube banks P, Q, R. Condensate from the main condenser circulates in succession through the tube banks P, Q in a direction opposite to the flow of the gases around them and is warmed by the heat from the condensing of the steam used in the jets .j. Raw cooling water is passed through the tubes R to re-cool the air and gases and this water is obtained by bye-passes x, 2 from the water supplied to the cooler. Finally, steam ejectors u' draw the gases into an after-condenser wherein a pressure slightly above atmospheric is maintained by the provision of the outlet 4 at right angles to the flow of the gases. The aftercondenser comprises tube banks S, T supplied with condensate from the main condenser, the tube banks being arranged as a bye-pass on the tube banks P, Q, R.
Patent GB-963250-A (GB)
Title: Improvements relating to filters
Inventor: DAVY JOHN
IPC: G02B5/28
Filed: 1959-09-12
Abstract: 963,250. Infra-red filters. BARR & STROUD Ltd. Aug. 29, 1960 [Sept. 12, 1959], No. 31146/59. Heading G2J. An infra-red filter comprises two crossed polarizing films, each film being of synthetic resin stained with a dichroic substance, and cover glasses between which the films are located, the glass transmitting not less than 80% in the wavelength range 0. 8 to 2. 5 microns and transmitting less than 1% of visible radiation, the filter absorbing practically all visible light and transmitting a band of peak not less than 65% in the range 0. 7 to 3 microns. As shown in Fig. 2 the filter comprises crossed polarizing films 11 which are united to each other and to cover glasses 13 by cement 12. The films are preferably formed as described in Specification 549,668 of stretched polyvinyl alcohol which is dyed for twelve seconds in a dye bath composed of 40 gramms iodine, 200 gramms ammonium iodide and 400 c.c.'s of water. Alternatively, two pairs of crossed polarizers may be disposed in series between colour glasses. Optical transmission data are given for both filters which may be used in a night sighting device with an image converter or for spectroscopic purposes.
Patent GB-1167129-A (GB)
Title: A Sealing Structure for a Tank for Storing Liquids.
IPC: B65D88/50
Filed: 1968-06-28
Abstract: 1,167,129. Tanks with floating roofs. GENERAL AMERICAN TRANSPORTATION CORP. 28 June, 1968 [9 Oct., l967] No. 31146/68. Heading E1T. An annular seal 30 between a tank 11 and its floating roof 26 is of the reinforced crosssection shown and is provided with spaced box flanges 36, 37 for location purposes, the seal being secured to the roof 26 by bolts 50 passing through apertured clamping bars 40, 45. The link is also provided with a fixed roof mounted on posts which serve as guides for the floating roof. For minor details of seal including material employed and dimensions the Specification should be referred to.
Patent GB-729505-A (GB)
Title: New colour couplers
Inventor: WOOLLEY JOHN MATHERS
IPC: C09B27/00
Filed: 1952-12-10
Abstract: 5 - (N - p - Dodecylphenylsulphamyl) - indazolone is prepared by heating together indazolone-5-sulphonyl chloride and p-dodecylaniline in dioxane.  5 - N - Phenylsulphamylindazolone and 5 - (N - a  - naphthylsulphamyl) - indazolone are similarly prepared.  5 - (31 : 51 - Dicarboxyphenylsulphamyl) - indazolone is prepared by reacting indazolone-5-sulphonyl chloride with the diethyl ester of aniline-3: 5-dicarboxylic acid in dioxane, acidifying, and boiling the precipitate with caustic soda to hydrolyse the ester.  2 - Carbethoxy - 5 - (N - p - dodecylphenylsulphamyl)-indazolone is prepared by refluxing together 5 - (N - p - dodecylphenylsulphamyl) - indazolone, ethyl chloroformate, and dioxane.  2 - Carb - octadecoxy - 5 - (N - phenylsulphamyl) - indazolone, 2 - carb - octadecoxy - 5 - (N - phenyl : N - methylsulphamyl) - indazolone, 2 - carb - octadecoxy - 5 - (31 : 51 - dicarboxyphenylsulphamyl) - indazolone, 2 - carb - octadecoxy - 5 - (N - a  - naphthylsulphamyl) - indazolone, 2 - carb - oleyloxy - 5 - (N - phenylsulphamyl) - indazolone, and 2 - carb - iso - amyloxy - 5-(N-phenylsulphamyl)-indazolone are similarly prepared.  2 - Carb - octadecoxy - 5 - (N - phenyl : N - methylsulphamyl) - indazolone sulphonic acid is prepared by adding chlorosulphonic acid to a solution of 2-carb-octadecoxy-5-(N-phenyl : N-methylsulphamyl)-indazolone in ethylene dichloride, and making alkaline with caustic soda.  2 - Carb - octadecoxy - 5 - (N - 41 - sulpho - 11 - naphthylsulphamyl)-indazolone is similarly prepared. Indazolone - 5 - sulphonyl chloride is prepared by stirring indazolone with chlorosulphonic acid at 40 DEG  C. for 6 hours.
Patent GB-888758-A (GB)
Title: Improvements in devices for reading off the position of a pick-up head with respect to a magnetic record
IPC: G01D5/14
Filed: 1959-09-14
Abstract: 888,758. Automatic position control systems. HEIDENHAIN, J., [trading as WENCZHER & HEIDENHAIN]. Sept. 14, 1959 [Sept. 16, 1958], No. 31306/59. Class 38 (4). [Also in Group XXXVIII] In a position indicating or control system a magnetic pick-up head comprises, Fig. 1, a Hall plate H provided with polepieces P in order to determine the position of the pick-up head relative to a stationary or slowly-moving member T coated with ferromagnetic material C which are magnetized at intervals corresponding to scale graduations. The amplitude and phase sense of the Hall voltage is dependent on the state of the magnetization of that part of the coating between the polepieces. An indicating or positional control circuit is shown in Fig. 3, in which the Hall plate H is energized from oscillator G. The Hall voltage being amplified in V 1  and applied to phasesensitive detector D, which has a 90 degree phase-shifted signal from generator G as a reference, the detector output is indicated at J or amplified and applied to a 2-phase servomotor M to drive the pick-up head to coincidence with the mid-point of a magnetized area on the coating C. Reference has been directed by the Comptroller to Specification 782,327.
Patent GB-1299579-A (GB)
Title: Method of producing wire electrodes
Inventor: BOHNER SIEGFRIED
IPC: B23K35/40
Filed: 1971-07-05
Abstract: 1299579 Making spark-erosion electrodes; spark erosion KABEL-UNDMETALLWERKE GUTEHOFFNUNGSHUTTE AG 5 July 1971 [9 July 1970] 31312/71 Headings B3A and B3V A copper wire electrode for spark erosion is made by drawing and stretching a copper wire. In the embodiment described, a copper wire is first drawn through one or more dies to a diameter 0À01 mm. greater than the desired electrode diameter after which the wire is stretched to the desired diameter, e.g. 0À15- 2-0 mm., by drawing apart a pair of clamps.
Patent GB-1500786-A (GB)
Title: Manufacture of rubberised fabrics
IPC: B29C70/06
Filed: 1976-07-26
Abstract: 1500786 Transfer-coating fabrics with rubber GREENGATE CABLES Ltd and POLYFLEET Ltd 26 July 1976 [26 July 1975] 31400/75 Heading B2E A fabric is coated with rubber by applying a rubber mix in granular form to the nip of a pair of heated rollers, whereby a thermoplastic film is formed on the roller surface; transferring the film to the fabric in the nip of a further roller in contact with the heated roller bearing the film; and allowing the coating to cool. The rubber may be a styrenebutadiene block copolymer, may be blended with polystyrene and with conventional compounding substances, including agents for subsequent vulcanisation, and may be loaded with carbon or filled with CaCO 3  or starch. The rollers may be heated to 90-190C. The fabric may be cotton, rayon or nylon. The coating may be calendered.
Patent GB-369219-A (GB)
Title: Improvements in or relating to tins, drums and like metal containers
IPC: B65D25/42
Filed: 1930-12-15
Abstract: 369,219. Attaching spouts to tins &c. ROBINSON, F. G., Springfield House, Sutton-on-Hull Yorkshire. Dec. 15, 1930, No. 31442/31. Divided on 362,677. [Class 66.] The pouring nozzle or spout of a tin, drum, or like metal container is formed with an inwardly directed flange 2, on the undersurface of which, or the metal surrounding the opening in the container, or both parts, are formed one or more annular grooves 4 adapted to receive molten solder during the tinning operation. When grooves are provided on both parts they are preferably arranged to register, as shown.
Patent GB-887512-A (GB)
Title: Improvements in or relating to magnetic tapes
IPC: G11B27/24
Filed: 1960-09-13
Abstract: 887,512. Magnetic structures. INTERNATIONAL BUSINESS MACHINES CORPORATION. Sept. 13, 1960 [Sept. 28, 1959], No. 31457/60. Class 38 (2). [Also in Group XXXVIII] A magnetic tape comprising a transparent supporting web 10 and a magnetizable coating 11 including, e.g. magnetic ferrite, incorporates aluminium markers 12 which reflect incident radiation 13 through the web. The markers lie between the layers, embedded in one of them, to protect them against oxidation and wear.
Patent GB-839423-A (GB)
Title: Process for producing aqueous alcohol from impure dilute aqueous solutions thereof
IPC: B01D3/00
Filed: 1958-10-02
Abstract: An impure dilute aqueous alcohol solution is purified by subjecting it to an extractive distillation in a first distillation column provided in the head thereof with a hot-water decanter supplied with a feed of hot water removing impurities as overheads, collecting from a lower portion of the column an aqueous alcohol containing residual impurities and redistilling said aqueous alcohol in a second column and withdrawing from the head concentrated aqueous alcohol which is then extractively distilled in a third distillation column supplied at the head with a feed of hot water withdrawing a mixture containing impurities and alcohol from the head thereof, and withdrawing diluted aqueous alcohol substantially free from impurities from the foot thereof.  The diluted aqueous alcohol withdrawn from the foot of the third distillation column is concentrated by distillation in a fourth distillation column, and any methyl alcohol contained in the concentrated aqueous alcohol obtained by the distillation in the fourth column is separated by distillation in a fifth distillation column.
Patent GB-838319-A (GB)
Title: Apparatus for plasticizing solid particulate material for a molding or extruding operation
Inventor: CORBETT HAROLD
IPC: B29C48/06
Filed: 1957-10-09
Abstract: 838,319. Moulding apparatus. REED. PRENTICE CORPORATION. Oct. 9, 1957, No. 31532/57. Class 87(2). [Also in Groups II, XXII and XXIII] In apparatus for plasticizing solid particulate material for use in extrusion, injection or other moulding apparatus, a hopper 12 introduces the material into a barrel 25 which is heated to fuse the material and contains a rotatable screw 22, this screw having upper convolutions 34 to feed the material downwardly and lower convolutions 35 to feed it upwardly so that the material is kneaded and folded upon itself, and discharged through a passage 28. The material may be finely-divided glass, a rubber compound, lead, tin, zinc, or a plastic. As shown, the invention is applied to an extrusion moulding machine having an extrusion die 14. The extruded rod or strip passes through an elongated water trough, Fig. 1 (not shown), and between rollers, the lower of which is driven. Cooling water is circulated through the trough. The extruder is provided with heating elements 30 ... 33. A cap member 42 threaded into the upper end of the feed screw has vanes 45 to agitate the material in the hopper 12. Air under pressure may be passed through a tube 51 into the interior of the feed screw 22 where it becomes heated. The heated air escapes through a bore 47 in the cap 42 leading to outlet passages 48 in the cap and pre-heats material in the hopper 12. The barrel 25 is surrounded by a casing 54. The hopper 12 comprises two annular members 55, 56, and is heated by convection currents passing through openings 75, 61 and 62. The extruder 11 is releasably secured to a housing 10 by pivotal clamping levers, Fig. 3 (not shown).
Patent GB-1151704-A (GB)
Title: Apparatus for the Regulation of the Pass-Band of a Spectrometric Assembly
Inventor: MENA TAOUFIK BEN
IPC: G01J3/18
Filed: 1966-07-13
Abstract: 1,151,704. Spectrometers. COMMISSARIAT A L'ENERGIE ATOMIQUE. July 13, 1966 [July 21, 1965], No. 31544/66. Heading G2J. Apparatus for simultaneously regulating the pass-band of a grating type monochromator controlled by a rotatable optical plate 6, and of the pass-band selector of a variable pressure gas chamber associated with the monochromator comprises a rod 24 secured between a stack of pressure capsules 28 subjected to the pressure in the gas chamber and a stack of pressure capsules 30 subjected to a reference pressure, the rod 24 being coupled to a rotatable lever 34 to which is connected the optical plate 6, so that when the pressure in the gas chamber is varied the rod 24 moves linearly and causes the lever 34 and optical plate 6 to rotate. The rod 24 engages a slot in the lever 34, this connection permitting the above movement to be effected and also permits adjustment of the proportionality coefficient between the variable pressure and the angle of rotation on movement of the rod 24 and stacks of pressure capsules towards or away from the axis of rotation of the lever 34 and the optical plate 6.
Patent GB-641822-A (GB)
Title: Improvements in or relating to sifting apparatus for stove ashes, cinders and the like
IPC: F24B15/00
Filed: 1947-11-28
Abstract: 641,822. Domestic cinder sifters. REYNARD, R. A. Nov. 28, 1947, No. 31564. [Class 117] A sifting apparatus, for example, for stove ashes or cinders, comprises a container 1 capable of being opened or closed and a sieve or riddle 11 perforated basket or tray, detachably mounted within the container upon supporting means such as. for example, a set of transversely-arranged rods or shafts 4, 5, slidably mounted in holes or apertures in the container walls. As shown, these rods 4, 5 are interconnected at their adjacent ends to form handles 6, 7 for effecting reciprocatory movement of the support. The rods or shafts 4, 5 are provided with a pair of oppositely-disposed lugs 8,9, or stops for locating the sieve element 11 in position upon the rods, and one of the lugs, e.g. 8, is so positioned as to serve as a means for limiting the movement of the rods in one direction, the movement in the other direction being limited by the oppositely-disposed handle 7. The lugs 8, 9 are shaped to conform with the walls of the sieve or riddle. The lower part of the container wall may be open and of inwardly tapered formation for seating in the upper part of a dustbin or the like.
Patent GB-728529-A (GB)
Title: Improvements in or relating to winding continuous filamentary structures
Inventor: TUDOR GEOFFREY WILLIAM
IPC: B65H54/50
Filed: 1952-12-13
Abstract: 728,529. Winding yarns &c. BRITISH NYLON SPINNERS, Ltd. Dec. 14, 1953 [Dec. 13, 1952], No. 31657 /52. Class 120(2). The rotary traverse mechanism of a yarn winding machine comprises a rotatable drum 1 with an endless helical yarn-guiding groove 3 the width of which is substantially reduced at the points 13 at which the axial motion of the yarn is reversed. In the embodiment of Fig. 2, the groove 3 is formed with a constant width 5 and then templates 9 of the same depth as the groove are fitted to give the narrow reversal points 13. An auxiliary starting groove 37 entirely separate from the traversing grooves may be included. In a further modification, Fig. 6, the traversing groove 41, 43 is arranged with a change of helix angle between the first and second halves of traverse with slight narrowing at 45. A rotatable disc carrying a thread guide and driven in synchronism with rotatable drum, may be included to ensure that the yarn is positioned readily to engage the traverse groove.
Patent GB-808211-A (GB)
Title: Improvements in or relating to ceramic permanent magnets
Inventor: TETLEY FREDERICK WILLIAM
IPC: C04B35/26
Filed: 1955-11-05
Abstract: 808,211. Moulding magnets. SWIFT LEVICK & SONS Ltd. Nov. 2, 1956 [Nov. 5, 1955], No. 31687/55. Class 87(2). [Also in Group XXXV]. In making a magnetically anisotropic magnet of BaO6Fe2O3 and/or Sr06Fe203 ferrite the material after presintering and grinding to a fine powder is compressed in a die 1 of austenitic steel mounted in a die plate 2 of mild steel by upper and lower austenitic steel plungers, 5, 6. A magnetic field is maintained during filling and compressing by current in coils 3. Orientation of the particles is assisted by cooling them by liquid oxygen passed through coils 8 surrounding the die plate. The powder is fed into the die from a vibrated and similarly cooled shoot through a magnetic field which aligns the particles as they fall, Fig. 2 (not shown). The compact is demagnetized by reversing periodically the magnetizing field as it is reduced to zero.