baber/WOPTO huggingface dataset:
Patent GB-1043618-A (GB)
Title: Improvements in and relating to electrolytic processes and baths for the production of zinc deposits
IPC: C25D3/02
Filed: 1964-03-24
Abstract: Zinc plating baths containing alkali zincate free of cyanide have added thereto a small quantity of one or more of metal compounds of Groups VI(b), VII(b) or iron, and aldehydes of aliphatic, aromatic or heterocyclic series.  Examples are the oxides, chlorides, or sulphates of Cr, Co, Mn, Mo, Ni, W, or Fe; benzaldehyde, piperonal, furfural, vanillin, anisaldehyde, a pyridine or isoquinoline aldehyde and salicyl aldehyde. Preferably a colloid is also present, e.g. gelatin, methyl cellulose, casein, or polyvinyl alcohol.  The metal compounds and aldehydes are added at the rate of up to 10 g. per litre, and the colloid up to 100 g. per litre.  Other additions include pore inhibitors surfacting and complexing agents, e.g. E. D. T. A. sodium salt.  After plating the surface may be dipped in dilute nitric or chromic acid.
Patent GB-940547-A (GB)
Title: Polymers containing silicon, aluminium and phosphorus
Inventor: BAMFORD WILLIAM RANDALL
IPC: C08G79/10
Filed: 1961-04-06
Abstract: 940,547. Polymers containing silicon, aluminium and phosphorus. IMPERIAL CHEMICAL INDUSTRIES Ltd. March 28, 1962 [April 6, 1961], No. 12382/61. Heading C3T. Polymers, in which the chains are made up of recurring groups containing Si, O and Al atoms, with P in substituent groups, are made by reacting an aluminium trialkyl with a diorgano-phosphinic acid and thereafter reacting the product obtained with a dihydroxy organosilicon compound in which the hydroxyl groups are bonded to Si. The alkyl groups in the Al reactant are selected from lower alkyl groups, and the organic groups of the P reactant may be lower alkyl or phenyl groups. The organo-silicon reactant may be a silane diol, a bis-(hydroxydiorganosilyl)-benzene or a tetraorgano-disiloxane-1,3-diol. The compound prepared in the first stage of the reaction may, if desired, be isolated, but usually this is unnecessary. The reaction is preferably effected in an inert solvent and in an inert atmosphere. In a typical example (1) a benzene solution of dimethylphosphinic acid was added to a methylcyclohexane solution of trimethylaluminium;when evolution of CH 4  had subsided a tetrahydrofuran solution of diethylsilanediol was added thereto with subsequent heating to 60C; solvent was then removed to yield a white powder which, on mixing with asbestos and heating, yielded a hard, infusible mass.
Patent GB-584449-A (GB)
Title: Improvements relating to powder compacts and like cases fitted with mirrors
IPC: A45D33/00
Filed: 1944-06-29
Abstract: 584,449. Powder boxes and handbags. JARRETT, RAINSFORD, & LAUGHTON, Ltd., and LAUGHTON, G. A. June 29, 1944, No. 12413. [Classes 18 and 133] The mirror of a handbag, compact, or the like is detachably mounted by a plurality of metal strips having an anchorage portion c for entering under a part b of the article and a flange or flanges d which are pressed over the edge of the mirror e. The corner of a mirror may be engaged by a triangular member having two flanges j which pass through slits in the flexible material of a handbag.
Patent GB-182978-A (GB)
Title: Improvements in or relating to machines or apparatus for packeting or packing dry or other goods or materials in a powder or other form
IPC: B65B63/02
Filed: 1921-04-30
Abstract: 182,978. Day & Sons, Ltd., J., Hadcock, J., and Naylor, W. H. (known as Naylor, W.). April 30, 1921. Packing and filling granular or pulverulent materials into paper bags &c. - Relates to machines for feeding, compressing, and delivering into bags, pulverulent or granular materials, particularly chicory. A measured amount of the material is delivered into a hopper 48, Fig. 1, and falls into a mould formed by members 38, 34, Figs. 4 and 10. The members 38, forming the outer sides of the moulds, are carried by an horizontal arm or drum 37 mounted on a vertical shaft 14 and rotated intermittently. The sliding portions 43 of the moulds are adjustably mounted on rods 42 sliding in bosses 41, and are provided with bowls 44 co-operating with a cam 46 on a fixed sleeve 40. The cam is so shaped as to move the right-hand member 43 into the position of compression shown on the right of the shaft 14, Fig. 4, the mould having a circular cross-section when contracted. The cam 46 may be so shaped as to allow a partial release of the compression before the mould arrives below a stamper r, Fig. 1. During rotation, cut-off plates 61 in slots 62 close the bottom of the mould. These are opened by a cam 64 and: the stamper commences to descend. Previously to this, a. bag of a crosssection corresponding to that of the mould when closed, is placed in a race d on the table a of the machine, or other conveying member, so that its mouth registers with sleeves 51, 54, Fig. 10, beneath the moulds. The sleeve 51 is encircled by a sleeve 52 carried by arms 55 connected with a pin 56. When the stamper r descends, a tappet depresses the pin 56 and carries the sleeves 52, 54 downwards. The sleeve 54 is slit and the parts hinged at the centre and the arms 58 are lifted by contact with levers 68, Figs. 1, 7 and 8, causing the parts 54 to expand within the mouth of the bag in the race d. At the same time, the levers 68 are moved so that clamping-parts 69 thereon embrace the outside of the mouth of the bag and clamp it in position. The material is then ejected into the bag which is conducted away. In a modification, the sleeve 52 is replaced by a sleeve carrying four or more flaps which are actuated to enter the mouths of the bags, and an additional cam is adjustably secured to the cam 46 to ensure that the sliding portion of the mould is open when under the stamper.
Patent GB-953462-A (GB)
Title: Polyvinyl chloride compositions
IPC: C08K5/45
Filed: 1960-04-07
Abstract: Compounds of the formula: <FORM:0953462/C2/1> wherein R1 and R2 are independently H or CH3 and R3 is a saturated branched C10-16 aliphatic hydrocarbon radical with a maximum of 11 C atoms in the longest chain may be prepared by adding a 10 to 50 mol per cent excess of an alcohol R3OH to cyclic butadiene sulphone (or the appropriate homologue) in the presence of 0.1 to 3 wt. per cent NaOH at 30 to 80 DEG C.  Specified alcohols are commercial isodecyl (R3= a mixture of dimethyloctyl and trimethyl heptyl), isotridecyl (R3 = trimethyldecyl and tetramethylnonyl), and isohexadecyl (dimethylbutyl dimethylhexyl hydroxymethyl methane).  The compounds are plasticizers for polyvinyl chloride (see Division C3).ALSO:Compounds of the formula: <FORM:0953462/C3/1> are plasticizers for polyvinyl chloride. R1 and R2 are independently H or CH3 and R3 is a saturated branched C10-16 aliphatic hydrocarbon radical with a maximum of 11C atoms in the longest chain.  They may be prepared by adding a 10 to 50% mol. excess of an alcohol R3OH to cyclic butadiene sulphone (or the appropriate homologue) in the presence of 0.1 to 3% wt. NaOH at 30 to 80 DEG C.  The excess alcohol improves the rate rather than the yield of the reaction. Specified alcohols are commercial isodecyl, isotridecyl and isohexadecyl which are mixtures of branched isomers. Specified optional ingredients for polyvinyl chloride compositions containing the plasticizers are unidentified secondary plasticizers, phosphites and cadmium-barium stabilizers and 2,6 di-t-butyl catechol.
Patent GB-868980-A (GB)
Title: Improvements in under-carriage shock absorbers for aircraft
Inventor: CONWAY HUGH GRAHAM
IPC: B64C25/60
Filed: 1958-04-18
Abstract: 868,980. Hydro pneumatic shock-absorbers. SHORT BROS. & HARLAND Ltd. April 7, 1959 [April 18, 1958], No. 12454/58. Class 108(3). In an aeroplane undercarriage shock absorber, movement of the slidable tube 13 Fig. 1 is initially resisted by air compression, in the housing 10 acting on the crosssectional area of the tube 13 and in the latter part of the stroke the tube 13 engages a floating annular piston 18 to increase the effective, area. The tube 13 is engaged internally by a plunger tube 19 carrying a piston 20 having orifices 201 to provide dashpot action, some of the orifices 201 being closed by a flap valve (not shown) during the return stroke. The tube 13 also encloses a concentric metering tube 24 having holes in the wall which are progressively passed by the piston 20. A piston 25 discourages emulsification. Stops 131 on the tube 13 engage the annular piston 18 at the end of the initial part of the stroke, the piston 18 normally resting against stops 23 on the housing 10. An additional compressed air chamber 26 may be provided in the lower portion of the tube 13 and is separated from the oil by a floating piston 28.
Patent GB-528007-A (GB)
Title: Improvements in and relating to lateral stabilisers for flying boats and amphibians
IPC: B64C35/00
Filed: 1939-04-26
Abstract: 528,007. Aircraft floats. SAUNDERSROE, Ltd., DOWDEN, P. R., and KNOWLER, H. April 26, 1939, No. 12466. [Class 4] A laterally retractable float is formed of separate, watertight portions connected by a fore-and-aft hinged joint which is closed in the down position of the float but open as the float is retracted so that the portions separate and are accommodated in recesses in the wing. The portions 10a, 10b, Fig. 1, are hinged at 11. The part 10a is fixed to a pair of struts 13 pivoted to the wing while the part 10b is pivoted to a strut 15 also pivoted to the wing. The struts may be operated hydraulically and catches 32, 33 are provided for holding the float in its two positions. The catches comprise pistons. 37, Fig. 5, fitted with spring-influenced latches 35 and are in parallel with the cylinders 16, 17 in a pressure circuit. Electric or manual operation may be used.
Patent GB-1412040-A (GB)
Title: Process for reducing the sodium content of red mud
IPC: C01F7/066
Filed: 1973-03-15
Abstract: 1412040 Bayer process red muds TATABANYAI SZENBANYAK 15 March 1973 [24 March 1972] 12507/73 Heading C1A The sodium content of Bayer process red mud is reduced by caustifying the red mud with calcium oxide by forming an aqueous suspension of the red mud and the calcium oxide which has a solid matter content of 20 to 40 wt. per cent, or by forming an aqueous dough-like mixture having a solid matter content of 70 to 80 wt. per cent, wherein 0À5 to 1 mole of CaO is added for each mole of SiO 2  in the red mud, and 0À5 to 2 mole of CaO is added for each mole of Al 2 O 3  in the red mud, subjecting the suspension or dough-like mixture to heat treatment with steam at atmospheric or super-atmospheric pressure while exerting on the suspension or dough-like mixture a shear force and/or pressure force of 1 to 35 atmospheres so as to continuously form new particle surfaces, and then lisciviating with water and filtering the suspension or dough-like mixture. The treated red mud is suitable for smelting to produce iron.
Patent GB-217722-A (GB)
Title: Improved construction of snap hook, particularly adaptable as a wheel lock for a baby carriage
IPC: B62B9/08
Filed: 1923-05-10
Abstract: 217,722. Robathan, E. O. May 10, 1923. Hooks, spring, safety, and closed.-A snap-hook of the type having two crossed arms operated by hand to open the hook, against the action of a spring, comprises two arms a, c pivoted at d within a U-shaped link e which also accommodates the suspension link. A torsion spring h, Fig. 5, fixed at either end to one of the arms, surrounds the pivot d and is accommodated in piercings in the pivoted ends of the arms. The free ends of the arms a, c overlap to form a completely closed hook, and stops are provided for them by riveting flat plates on the lateral faces of the arms. Extensions a<5>, c<5> on the members a, c, bent at right-angles thereto, facilitate operating the device by hand.
Patent GB-188006-A (GB)
Title: Improvements in and relating to electric meters
IPC: G01R11/10
Filed: 1921-05-02
Abstract: 188,006. Holden, F., and Measurement, Ltd. May 2, 1921. Electric and magnetic.- In an electricity meter having an electromagnetic brake separate from the measuring-elements, the brake. comprises a rotary conductor and a permanent magnet, the poles of the magnet being located wholly within the rotary conductor. As shown, a copper bell a rotates with the meter spindle b, and located wholly within the bell is a permanent magnet c of high retentivity, a ring d and two end-plates e, f of soft iron closing the magnetic circuit externally. The braking-effect may be varied by shunting a portion of the magnetic field through screws projecting through one of the end plates, or as shown, a sleeve h carrying the bell can be adjusted on the meter spindle and locked by the nut i.
Patent GB-552301-A (GB)
Title: Improvements in or relating to trigger circuits employing thermionic valves
IPC: H03K3/13
Filed: 1941-09-29
Abstract: 552,301. Valve relay circuits. CINEMATELEVISION, Ltd., and NUTTALL, T. C. Sept. 29, 1941, No. 12608. [Class 40 (v)] A circuit comprises two valves with a common cathode resistance and an impedance in the anode circuit of one valve to which the signal is fed and with a coupling to the grid of the other valve from the anode of the first valve. Change in current in the anode circuit of either valve may be utilized and the coupling impedances have a value such that the coupling is greater than the minimum value required to produce instability so that the current changes over abruptly from one valve to the other. The Figure shows a pair of valves 1, 2 coupled by resistances 5, 6, 7 and having a common cathode resistance 4. In this manner a closed regenerative path is provided which will produce instability if the transmission round the path exceeds unity and cause one valve to be cut off and the other to pass full current in both directions. To reduce the overlap between the two critical values at which the valves change over without restricting the magnitude of the current change, the intervalve coupling may be given a rising frequency characteristic as by the provision of condenser 8. One of the coupling impedances may be variable to control the extent of the overlap. The signal may be derived from a photo-cell so that operation is effected by light values or the arrangement may be used as a discriminating circuit in a counting system. An electro-magnetic relay may be operated on receipt of a definite value of signal or the arrangement may be used for wave shaping.
Patent GB-377741-A (GB)
Title: Improvements in or relating to gas burners
IPC: F23D14/00
Filed: 1931-04-29
Abstract: 377,741. Gas burners. GILL, H. A., 51, Chancery Lane, London.-(Westdeutscher Industrie-Ofenbau; 42, Bahnhofstrasse, Bonn-on-Rhine, Germany.) April 29, 1931, No. 12674. [Class 75 (i).] A gas burner comprises a refractory block 3 formed with rows of channels 6, 7 through which gas and air are supplied respectively into mixing and combustion slots 20, formed between refractory plates 17 and containing refractory deflectors 22, the block 3 and the plates 17 being removably mounted with freedom to expand independently of one another in a common support. As shown, the block 3 and the plates 17 are supported respectively by shoulders 5, 18 in a furnace cover 2 suspended on supports 1, the block being separated from the plates by an expansion space 16. Gas is supplied to the channels 6 through channels 8 from branch pipes 14 of a main 13 and air is supplied as by a fan through a pipe 11, a cowl 10 and openings 12 in a plate 9 to the channels 7. The plates 17 are formed with projections 19 on one or both sides, or the latter may alternate with plain plates, to form the slots 20. The deflectors 22 may be formed in one with the plates or may be adjustable as by being slidable in slots in the plates or, preferably, by being inserted in selected holes 21 therein. The deflectors may be temporarily fixed in the holes before assembly of the plates by means of an adhesive which is burned out during operation of the burner. On ignition, flames issue at first from the slots until a temperature of about 1000‹ C. is reached, when the flames disappear and flameless combustion ensues. The main combustion zone may be displaced backwards, or forwards, by moving the deflectors away from, or towards, the outlets of the slots 20 or by arranging the deflectors nearer to, or farther from, one another in a direction across the currents of gas and air. Specification 142,882, [Class 51 (i), Furnaces and kilns, Combustion apparatus of], is referred to.
Patent GB-1108177-A (GB)
Title: Process for the separation of hydrocarbon compounds
IPC: C07C7/148
Filed: 1965-03-25
Abstract: Ethyl benzene is separated from a mixture also containing m- and/or p-xylene by reacting the mixture with toluene and/or naphthalene to effect selective transalkylation forming ethyl toluene and/or ethyl naphthalene whilst the xylene(s) remain unchanged, distilling to separate off the xylene(s), and treating the residue with benzene to regenerate ethyl benzene by transalkylation.  The product may then be separated by further distillation.  If the starting mixture also contains o-xylene this may be separated by distillation prior to the selective transalkylation.  If the xylene distillate after the first (selective) transalkylations contains both m- and p-xylene it may be subjected to a further selective transalkylation with an alkyl aromatic having a C3 or higher alkyl group (e.g. tert-butyl benzene) as described in Specification 1,108,178.  Only the m-xylene reacts, and after separation of p-xylene by distillation, the m-xylene may be regenerated by transalkylation with excess benzene.  Each transalkylation may be carried out in the presence of a catalyst, e.g. AlCl3, AlCl3/HCl or H3PO4.  The starting mixture may be any C8 aromatic fraction, e.g. one obtained from a reformate.
Patent GB-1111110-A (GB)
Title: Improvements in method and apparatus for forming helically wound pipe
IPC: B21C37/12
Filed: 1966-03-23
Abstract: 1,111,110. Making helically wound tubes; welding by pressure. FAY PIPE & PILE Inc. 23 March, 1966 [22 March, 1965], No. 12796/66. Headings B3A, B3E and B3R. In a method of making helically wound tubes, sheet material is fed into a unit 2 wherein the material is formed into a deformed helical loop, the advanced edges of the deformed loop are heated, the deformation is removed, the advanced edges of the loop are welded and the circumference of the loop during the latter two stages is controlled. The deformation may take the form of a taper or the sheet edges may be flanged by rollers (65), Fig. 9 (not shown). The edges to be joined are heated in a highfrequency electrical unit having contact shoes 33, 35 and butt welded together between rollers 37, 39. The taper may be applied either by off-setting a roller 17 or by adjustment of a shoe 18 on a stanchion 13, the taper finishing in the radial plane of the weld. A circumference control device 41 lies in the plane of the weld and is axially adjustable on horizontal supports 51. The device 41 comprises a ring 47 on which are fitted four rollers (79), Fig. 8 (not shown) radially adjustable to the size of the finished tube. A holding ring 43 is required when loop deformation other than edge flanging is used.
Patent GB-1158753-A (GB)
Title: Improvements in or relating to Rotary Compressor Plant
Inventor: RURIK JOSEF
IPC: F04D17/02
Filed: 1967-03-18
Abstract: 1,158,753. Centrifugal and axial-flow compressors. GUTEHOFFNUNGSHUTTE STERKRADE A.G. March 18, 1967, No.12796/67. Heading F1C. A compressor comprises a multi-stage axialflow section 1 having adjustable guide vanes in adjacent stages of at least some of its stages, and a downstream radial-flow section 2. The length of the guide vane adjusting arms increases successively from stage to stage in the direction of flow so that the angular adjustment of the vanes is greater for the upstream than for the downstream stages. The angular adjustment is such that when the pressure rise across all of the adjustable stages is substantially zero, the pressure rise across each adjustable stage is also substantially zero. Thus, the axial-flow section can be made wholly or largely ineffective. The axial-flow section may consist of four adjustable stages followed by a non-adjustable stage. Coolers are arranged between the radial-flow stages. At least the last radialflow stage is reversed to at least partially balance the axial-thrust. In an alternative embodiment, a low-pressure set comprising five axial-flow stages and one radial-flow stage is arranged on a common shaft with a high-pressure set comprising four axial-flow stages and one radial-flow stage, the two sets being arranged opposed with their radial-flow stages adjacent one another to assist sealing and substantially equalize axialthrusts. A cooler is arranged between the sets. A further radial-flow stage may be mounted overhung on the shaft and arranged to receive the discharge of the second set via a cooler.
Patent GB-124142-A (GB)
Title: Improvements in Angular Rolling Mills.
Inventor: FIELDING JOHN
IPC: B21B19/04
Filed: 1918-08-07
Abstract: 124,142. Fielding, J. Aug. 7, 1918. Rolling tubes; rolling wheels and aisks; skew-rolling. - Rolling-mills having angularly disposed conical rolls such as k, k<1>, which are employed for piercing solid metal billets for making seamless tubes, for expanding or contracting these, or for rolling disk railway and like wheels, are constructed with pivoted frames as c for the rolls mounted on pivotal axes which are parallel to the axes of the rolls. The rolls are preferably driven by separate motors which operate pinions concentric with the pivots of the frame, and these mesh with wheels f, f<1> on the roll shafts. In the normal mid positions of the frames c, these are vertical, and, when desired, the rolls can be moved towards or away from each other by moving these frames by means of screws, hydraulic rams, &c. As shown, the frames are adjusted by links l connected to a screwed plunger c operated by internally threaded sleeves p driven by worm gearing g, r, and bevel gearing t, t' from a shaft u driven by a coupling v from the main motor.
Patent GB-373751-A (GB)
Title: Improvements in or relating to combined motion picture and sound reproducing apparatus
IPC: G03B31/02
Filed: 1931-05-01
Abstract: 373,751. Sound reproducing apparatus associated with kinematographs. ELECTRICAL RESEARCH PRODUCTS, Inc., 195, Broadway, New York, U.S.A.-(Assignees of Pfannenstiehl, H.; 80, Boulevard West, Mountain Lakes, New Jersey, U.S.A.) May 1, 1931, No. 12877. Convention date, May 31, 1930. [Class 40 (ii).] Comprises a combined motion-picture and sound-reproducing apparatus having driving means designed to ensure constancy of speed of the photographic sound record past the soundreproducing point. Pivoted on a pedestal 10 is a bracket 11 which supports a lamp housing 12, a picture-projector head 14, and a casing 21 containing optical sound-reproducing apparatus. The casing 21 contains a light source 24, Fig. 2, an optical system 26, a photoelectric cell 27 and driving and guiding means for the film 32, which comprise a pressure-foot 31 and sprockets 33, 34, 35. The output from the photo-electric cell 27 is taken to an amplifier 28.and, to reduce the length of the connection, the amplifier 28 is mounted on an adjustable pedestal 29. The sprocket 34 is mounted on a shaft 36, Fig. 3, to which is secured a flywheel 37 driven from a motor 18 through a flexible belt 38. To transmit power to the projector driving-mechanism, a gear wheel 41, rotatably mounted on the shaft 36, has a series of holes 42 adapted to register with projections 40 on a spider .39 secured to the shaft 36. Resilient sleeves 43 are fitted into the holes 42 so that any vibrations transmitted to the gear 41 will be prevented from affecting the constancy of speed of the shaft 36, the uniform rotation of which is further ensured by the combination of the flexible belt 38 and heavy flywheel 37. The gear 41 drives through an idler gear 44 a gear 45 on the shaft of the sprocket 33, and through a second idler gear 46 a gear 47 which rotates the hold-back sprocket 35. A gear 50 meshes with the gear 45 to drive,the picture-projector mechanism.