baber/WOPTO huggingface dataset:
Patent GB-1143883-A (GB)
IPC: H01M8/1023
Abstract: 1,143,883. Fuel cells. DOW CHEMICAL CO. 23 June, 1967, No. 29118/67. Heading H1B. [Also in Division C7] A fuel cell has an ion exchange membrane with catalytic electrode material films on both its sides. Preferably, the membrane is composed of numerous continuously hollow fibres, with interior coatings and exterior coatings respectively connected in parallel, and hydrogen or other fuel is fed into the interior of the fibres while oxygen or other oxidant is brought into contact with their exterior. Lists of cationic exchange resins, anionic exchange resins and non-ionic organic polymeric materials suitable for membranes are given and methods of making hollow fibres by melt, dry and wet spinning are described. Cr, Cu, Au, Ni, Pd, Pt, Rh and Ag may be employed as films on the membrane. Such a film may be produced on one surface of a selectively permeable body by contacting it on one side with a compound of the metal to be deposited and on another with a reducing agent, either the metal compound or the reducing agent passing through the body to react with the other and cause deposition of metal. Materials which can be coated in this way may be permselective to cations, anions or molecules, a membrane of a material permselective to cations, for example, being plated on its surface in contact with the reducing agent. Preferably, the metal compound is in aqueous solution containing 0À1 to 50% of it by weight, the reducing agent is in aqueous solution containing 0.I to 20% of it by weight and plating is carried out at 0‹ to 100‹ C. Suitable reducing agents include hydrazine, hydrazine hydrate, acid salts of hydrazine, phenyl hydrazine, alkali metal borohydrides, alkali metal hydrosulphites, alkali metal phosphates and KNa tartrate.
Patent GB-1227267-A (GB)
IPC: A43B13/28
Filed: 1969-06-19
Abstract: 1,227,267. Boots &c. SEMPERIT A.G. 19 June, 1969 [5 July, 1968], No.30976/69. Heading A3B. In a shoe having a sole 5 of elastic material the bonding of the sole 5 to the insole 2 is interrupted in the region 6 of the ball of the wearers foot. The sole 5 is injection moulded on to the lasted upper 1 and may be of rubber, polyvinylchloride or polyurethane. The sole may be prevented from bonding to the ball region of the insole by (i) applying a separating agent to the insole, e.g. waxes, silicon oils or an aqueous suspension of zinc stearate and chalk, (ii) placing a separating foil on the shoe bottom, e.g. siliconised paper, or a polyethylene or polypropylene foil, (iii) making the insole 2 from material to which the sole material will not stick, or (iv) cutting away the ball region of the insole, the sole material filling the cut-away part of the insole. The region in which the sole is unbonded to the insole extends laterally up to the lasting margin of the upper and may cover the ball area, the forepart region or the whole of the shoe bottom.
Patent GB-1227494-A (GB)
IPC: B03C1/28
Filed: 1969-06-10
Abstract: 1,227,494. Magnetic separators. KONTAK MFG. CO. Ltd. 29 May, 1970 [10 June, 1969], No. 29420/69. Heading B2J. A magnetic plug 7 is removably contained in a body 1 which is. fitted with a valve 4 which is operable when the plug .is removed to prevent fluid flow from the body. As shown, the valve 4 which has a blind aperture 5 is provided with ports 8 which co-operate with ports 9 in the body 1 which, when the ports 8, 9 are in line, allows fluid to flow over the magnetised spigot 6 of the plug 7. When the plug 7 is removed by rotation it causes the apertures 8, 9 to become out of alignment to prevent fluid flowing into the body 1. In a modification, removal of the plug causes a valve member to retract into the body against spring action.
Patent GB-1227588-A (GB)
IPC: A01N53/10
Filed: 1968-12-09
Abstract: 1,227,588. Unsaturated chrysanthemic acid esters. ROCHE PRODUCTS Ltd. 11 Nov., 1969 [9 Dec., 1968 (3)], Nos. 58351/68, 58352/68 and 58353/68. Heading C2C. [Also in Division A5] The invention comprises compounds of the formula wherein the symbol R represents a grouping of the formula where R 1  is a lower alkyl C 1-4  group and R 2  and R 3  each represent a hydrogen atom or a lower alkyl C 1-4  group or R 1  is a hydrogen atom and R 2  and R 3  each represent a lower alkyl C 1-4  group, R 4 , R 5  and R 6  each represent a hydrogen atom or a lower alkyl C 1-4  group. They are prepared by reacting a chrysanthemic acid halide with the appropriate unsaturated alcohol or by reacting chrysanthemic acid with the appropriate unsaturated halide in the presence of an acid binding agent. The compounds have insecticidal acitivity. cis-2,5-Hezadien-1-ol is prepared by hydrogenating 5-hexen-2-yn-1-ol in the presence of a partially deactivated palladium catalyst. trans-2,5-Hexadien- 1 -ol is preparared by hydrogenating 5-hexen-2-yn-1-ol with lithium aluminium hydride. 2,5-Heradiyn-1-ol is prepared by treating propargyl magnesium bromide (Grignard) with cuprous chloride, treating the mixture with propargyl bromide and decomposing the product with aqueous ammonium chloride.
Patent GB-1227650-A (GB)
IPC: F23C3/00
Filed: 1969-08-08
Abstract: 1,227,650. Radiant burners. JEAN NASSHEUER INDUSTRIEOFENBAU UND ELEKTROTECHNIK. 8 Aug., 1969 [8 Aug., 1968 (3)], No. 39843/69. Heading F4T. A radiant burner including an outer tubular jacket 4 of highly refractory ceramic material which in use acts as a radiant tube in a furnace area defined by walls 6 and 7 comprises an inner flame tube 1 of, for example, ceramic material which is carried by a combustion nozzle 3 defining an outlet of an air feed pipe 2 and which is surrounded by the outer jacket 4, a gas feed pipe 5 being disposed within the air feed pipe 2 and extending into the combustion nozzle 3, and in the downstream end of the tubular jacket 4 opposite the end surrounding the combustion nozzle 3 is tightly inserted a member 8 of ceramic material, which member 8 has a surface 12 to cause combustion gases from the inner flame tube 1 to flow into a space between the flame tube 1 and the outer jacket 4. As shown, support tabs 23 are disposed longitudinally and circumferentially on the outer surface of the flame tube 1 intermediate the flame tube 1 and the tubular jacket 4; the support tabs 23 may be offset relative to one another. The shaped member 8 projects beyond the free end of the tubular jacket 4 and is carried by a bearing liner 14. The combustion nozzle 3 comprises a metal part 21 which converges in the downstream direction and carries the flame tube 1 and connects the combustion nozzle 3 with the air feed pipe 2, and a refractory ceramic part 22 flared outwardly in the downstream direction and extending into the flame tube 1. In the modification of Fig. 2 (not shown) the flame tube (1) is provided with passages (24) spaced along and around a wall thereof for the passage of hot combustion gases.
Patent GB-1228343-A (GB)
IPC: F16D51/18
Filed: 1969-01-17
Abstract: 1,228,343. Internal shoe drum brakes. SOC. ANON. D.B.A. 17 Jan., 1969 [26 Jan., 1968], No. 2745/69. Heading F2E. A shoe retracting system for an internal shoe drum brake comprises a lever 16 pivoted at one end on a brake shoe web and formed at its other end with a hook portion and a cam 24 pivoted on the brake shoe web, the cam having an eccentric member 22 which engages a slot or elongated opening 20 in the lever for moving it between two distinct angular positions corresponding to the stressed and unstressed condition of a return spring 14 engaging the hooked end of the lever. The cam can be turned with a screwdriver from outside the brake. In the stressed position member 22 is located so that spring tension prevents it moving from the opening. The brake assembly may include a double back plate, and each shoe may include one or more levers and cams.
Patent GB-1230331-A (GB)
IPC: D01G15/20
Filed: 1969-03-21
Abstract: 1,230,331. Carding machines. T. M. M. (RESEARCH) Ltd. 18 March, 1970 [21 March, 1969], No. 15032/69. Heading D1N. A carding machine feeding arrangement comprises a first taker-in 7, a condenser roller 8 arranged to rotate at a lower peripheral speed than the first taker-in 7, and a second taker-in 9 which receives fibres from the condenser. As shown, a transfer roller 10 is provided between the condenser and the second taker-in 9. The feed system can also comprise a comb bar 14 for breaking down tufts, an edge 15 for removing trash, a casing 16 formed of bars to retain the fibres on the first taker-in 7, high pressure casings 22, 23, 27, 28 and a further fibre-retaining casing 19, in alternative embodiments; a second condenser (29), dotting or burr crushing rollers (30, 32) and feed device (33) for the second taker-in 9 are provided (Fig. 2); doffing rollers (30, 32) and burr-crushing rollers (35, 36) are prvoided (Fig. 3); a third condenser roller (37) is provided (Fig. 4); contra-rotating feed rollers for the takers-in are provided (Fig. 5); and a transfer roller which may have a carding surface 47 associated therewith is provided between the first taker-in and the condenser 8 (Fig. 6).
Patent GB-1230639-A (GB)
IPC: F26B13/10
Filed: 1968-06-13
Abstract: 1,230,639. Steaming suspended textile material. GERBER & CO. G.m.b.H. 13 June, 1968 [24 July, 1967], No. 28098/68. Heading D1L. [Also in Division F4] A loop-suspension drier or steamer for textiles comprises material-carrying bars which move in an endless path which is in a substantially horizontal plane. In the embodiment shown, the intermittently rotating carrier bars 3 in casing 2, are rotatably fixed at one end thereof to an endless chain 4 supported' by driving sprocket 7 and adjustable tensioning sprocket 8 and guided by guide 6. The other ends of the bars are freely suspended. The sprockets 7, 8 are supported by hollow pillars 19', 20 respectively. Air or steam is supplied through pillar 20 and circulated in casing 2 by vanes 23. The wind-off speed of the material is synchronised with the speed of the chain. In another embodiment (Fig. 6, not shown) one end of each bar is mounted on a cylindrical body rotating about a hollow support pillar, the other end being freely suspended, or having a roller for running on a guide.
Patent GB-1231381-A (GB)
IPC: B60B33/02
Filed: 1967-04-04
Abstract: 1,231,381. Brakes for rolling and swivelling castors. FLEXELLO CASTORS & WHEELS Ltd. 24 May, 1968 [4 April, 1967], No. 15325/67. Heading F2E. For braking the rolling and swivelling movement of a castor wheel 14, Fig. 2, the wheel is mounted between legs 11 on an annular plate 10 held between balls 9 of two ball races 5, 6, to rotate about vertical shaft 1. The brake comprises a leaf spring 15 fixed at one end from the plate 10 and pivotally mounted on pin 22 at the other end between side flanges 20 of the first control pedal 19. When the pedal is depressed nose 23 runs up the inclined lower surfaces 37 of two vertical flanges of a braking member 25. The member 25 is mounted on the underside of a U-shaped plate 24, pivoted on pin 17 between the legs 11, and on which the second control pedal 39 is pivotally mounted on pin 44. A screw 38 is provided in the braking member 25 whose end contacts the upper ball race 5 when the pedal 19 is depressed. When the brake is operated movement of the nose 23 of the pedal 19 up the surface 37 forces the leaf spring 15 into engagement with the wheel surface, Fig. 3 (not shown) and also pivots plate 24 upwards until the end of the screw contacts the upper ball thereby preventing both rolling and swivelling movement of the castor wheel. To disengage the brake the pedal 39 is depressed, so that nose portions 41 on side flanges of the pedal 39 force the nose 23 on the pedal 19 down the surface 37.
Patent GB-1233698-A (GB)
Filed: 1969-09-04
Abstract: 1,233,698. Purification of acetone-cyanhydrin. SUMITOMO CHEMICAL CO. Ltd. 4 Sept., 1969, No. 43899/69. Heading C2C. Crude acetone cyanhydrin, prepared by reacting acetone and HCN in approximately equal amounts in the presence of an alkaline substance at from - 20‹ to + 20‹ C. is purified by contacting the crude material (preferably after neutralization of the alkaline substance by adjusting the pH to 1-4 and separation of the salt formed) with an inert gas in a stripping zone, particularly at from 80‹ to 120‹ C. to strip unreacted acetone and HCN and recovering the pure cyanhydrin. The gaseous mixture containing the inert gas, acetone and HCN is then contacted with the acetone-cyanhydrin synthesis mixture containing 90-97% by wt. cyanhydrin, 2-7% by wt. acetone, 1-3% by wt. HCN, and 0À01-7% by wt. alkaline catalyst at - 20‹ to + 20‹ C. to absorb unreacted acetone and HCN into the synthesis mixture and the remaining inert gas is then recycled to the stripping zone. The process is designed for continuous production of pure acetone cyanhydrin and details of a suitable apparatus are given.
Patent GB-1252325-A (GB)
IPC: H04M11/06
Filed: 1969-04-03
Abstract: 1,252,325. Digital transmission systems. SIEMENS A.G., TEKADE FELTEN UND GUILLEAUME G.m.b.H. STANDARDELEKTRIK-LORENZ A.G. and TELEFONBAU UND NORMALZEIT G.m.b.H. 3 April, 1969 [9 April, 1968], No. 17506/69. Heading H4P.  Digital data is transmitted in D.C. form from a subscriber to a first automatic exchange wherein it is converted to A.C. form. The A.C. data is passed, via intermediate exchanges if necessary, to a final exchange in which it is converted back to D.C. form and passed to the other subscriber. The number of converters at an exchange is less than the number of associated subscribers, and a converter is alotted to a subscriber only for the duration of the connection.
Patent GB-1256551-A (GB)
IPC: F27D11/00
Filed: 1969-09-22
Abstract: 1,256,551. Vacuum furnaces. BROWN, BOVERI & CO. Ltd. 22 Sept., 1969 [23 Sept., 1968], No. 46499/69. Heading F4B. [Also in Divisions H3-H5] In a cored vacuum furnace having a shell 1 mounted for tilting about a horizontal axis 6 extending between upstanding pillars 7, 71 which are carried by a base-plate 9 rotatable about a vertical axis on a tray 11, the inductor 2 is connected to supply lines 23, 23<SP>1</SP> by electric conductors 20, 20<SP>1</SP> through the intermediary of two sets of contact plates 19, 19<SP>1</SP>, and cooperating spring clip connectors 24, 24<SP>1</SP>, either the two sets of contact plates 19, 19<SP>1</SP> being fixed and the clip connectors 24, 24<SP>1</SP> being mounted on the rotatable base-plate 9 or vice versa. As shown, the sets of plates 19, 19<SP>1</SP> are mounted on respective conductive rings 21, 21<SP>1</SP> secured to the base-plate 9 by spaced insulators 22, 22<SP>1</SP>. The conductors 20, 20<SP>1</SP> are secured to the rings 21 21<SP>1</SP> which may have different radii and extend in the same or different planes. The spring clip connectors comprise two cranked arms pivoted together intermediate their ends, with the contact making ends biased together by a compression spring between the other ends. The rings 21, 21<SP>1</SP> can be omitted if the contact plates 19, 19<SP>1</SP> are secured together to form a ring or part of a ring. The conductors 23, 23<SP>1</SP> and rings 21, 21<SP>1</SP> are water cooled. This arrangement permits the furnace supply to be continued in several angular positions of the baseplate 9. The furnace is used for vacuum degassing or superheating molten metal. Charging the furnace can be effected through a vacuumtight door 15 or through vacuum column 4 by swinging the vacuum pipe 17 away from the furnace. The melt can be teemed in various angular positions of the furnace by tilting the furnace so that a beak 12 overlies a teeming station, inserting a metering tube 13 in the beak and disconnecting vacuum pipe 17. The beak may be flanged so that it may make sealing engagement with a similar flange on a gastight container containing a mould or ladle. A shut-off device may be included in the container so that it can be evacuated before being secured to beak 12.
Patent GB-1264161-A (GB)
IPC: D04H3/10
Filed: 1969-04-11
Abstract: 1,264,161. Non-woven fabric. UNION CARBIDE CORP. 11 April, 1969 [12 April, 1968], No. 18620/69. Heading D1R. A non-woven coherent textile of substantially uniform structure and thickness is made by laying down at least 2 crossing layers of strands of yarn or tow 11 held under restraint between two rows of restraining means e.g. tenter clips or pins 12 and then mechanically intermingling and interlocking the strands of the different layers e.g. by needles 17. A layer of warp strands 21 of yarn or tow may be laid on either or both sides of cross-laid layers and the product needled or four layers of cross-laid strands may be needled together under restraint. Contrasting colours of tow or yarn may be used to produce a patterned effect. The yarn may be of synthetic continuous filaments or staple spun. They are preferably crimped and may be of glass or graphite or chosen from a list of synthetic fibres. The textile formed by be needled to a nonwoven batting or a woven cloth or plastic foam backing.
Patent GB-1264502-A (GB)
IPC: C07C5/27
Filed: 1969-03-28
Abstract: 1,264,502. Destructive pyrolysis gas, hydrocarbons &c. UNION CARBIDE CORP. 28 March, 1969 [29 March, 1968], No. 16370/69. Heading C5E. A xylene mixture containing a non-equilibrium proportion of meta-xylene is isomerized by a process which comprises contacting the xylene mixture, in the vapour phase and under isomerization reaction conditions, for example a temperature of from 500 to 800 F., a pressure of from atmospheric pressure to 750 pounds per square inch and a xylene mixture weight hourly space velocity of from 1 to 25, with a catalyst which comprises a crystalline zeolitic molecular sieve having a deposit thereon of hydrocarbonaceous "coke" in an amount of from 5 to 20 weight per cent based on the weight of the molecular sieve in its dehydrated state. The molecular sieve, which may be natural or synthetic mordenite, zeolite X, zeolite Y, zeolite L or zeolite TMA-omega, has a pore size large enough to adsorb the benzene molecule, a silica/alumina molar ratio of at least 2À2, an alkali metal cation content not greater than 10 equivalent per cent of the total cation content and a residual volatile content, exclusive of the "coke" deposit, such that when heated at 1000 C. for half-an-hour a weight loss of not greater than 2À5 weight per cent is incurred. Alkali metal cations of the molecular sieve may be replaced by ions selected from hydrogen, ammonium, alkylammonium, magnesium, calcium, aluminium, thorium, manganese and rare earth metal cations; as exemplified, the molecular sieve is zeolite Y which has been subjected to successive ion exchange with ammonium and "didymium" cations and in which the equivalent sodium : ammonium : rare earth metal cation ratio is either 4 : 34 : 60 or 5 : 47 : 46. Prior to deposition thereon of "coke", the cation-exchanged molecular sieve may be activated by heating at a temperature of from 400 to 750 C. for a period of time such as to provide the aforementioned characteristic relating to weight loss. The deposit of "coke" may be provided by the polymerization and subsequent coking of an easily polymerizable unsaturated hydrocarbon, for example styrene, isobutylene, butadiene or methylacetylene; as exemplified, the coke may result from the use of the molecular sieve in a process for the disproportionation of toluene to benzene and xylene at a temperature of 700 F. and a pressure of 450 pounds per square inch. The process for isomerization may employ carrier gas for the xylene mixture, for example hydrogen, nitrogen, methane, helium, argon or a mixture thereof.
Patent GB-1264709-A (GB)
IPC: B29C31/04
Filed: 1969-06-26
Abstract: 1,264,709. Valves. BADISCHE ANILIN- & SODA-FABRIK A.G. 26 June, 1969 [29 June, 1968], No. 32352/69. Heading F2V. A valve for a resin casting machine has two channels 4, 5 and 6, 7 through which the reactive materials to be cast are circulated until a diaphragm 9 allows them to flow through passages 13, 14 and holes 3 into a tapered mixing chamber 2 connected with the mould. The diaphragm may be of silicone rubber coated with polytetrafluorethylene and is secured in the valve body by a ring 10 and a disc 11. A bore 15 permits compressed air to be applied to the diaphragm when the flow of material into the mixing chamber is to be interrupted.
Patent GB-1265803-A (GB)
IPC: B07B1/22
Filed: 1968-05-07
Abstract: 1,265,803. Wet separating. AVIATION SUPPLY, MINISTER OF. 7 Aug., 1969 [7 May, 1968], No. 21473/68. Heading B2H. [Also in Divisions Dl and D2] Fibres e.g. of asbestos, are classified for length by feeding a liquid dispersion of the fibres onto a circulating endless screen having a mesh size such that longer fibres are retained thereon as a thin layer and the major part of the fibres and liquid are passed through the screen by centrifugal force for collection and perhaps recirculation and further classification. The retained fibres are removed from the screen by a jet of gas directed thereon at a subsequent part of its travel. The' screen may be formed by a horizontal rotating cylinder, the dispersion being fed tangentially by a supply weir onto the inside of the cylinder at its lower part and the fibres removed by an air jet directed from outside the upper part of the cylinder for collection by suction into a chamber through an elongated orifice extending over the full width of the screen. The liquid may be partly supplied at a washing position between dispersion supply and fibre removing stations. Modifications include a screen divided into two or more sections perhaps of different mesh sizes and recirculating systems for successive and/or graded classification of fibres. The length classification may be preceded by a diameter classification using a hydrocyclone or an elutriation column.
Patent GB-1266838-A (GB)
IPC: H01F27/40
Filed: 1970-09-09
Abstract: 1,266,838. Battery charging stands. GILLETTE CO. 9 Sept., 1970 [19 Jan., 1970], No. 43092/70. Heading H2H. A holder for storing an appliance such as a razor comprises a base having battery charging means housed therein and a generally hollow portion extending upwards from the base, in which hollow portion can be housed articles associated with the use of the appliance. A holder in which can be stored a safety razor R comprises a base portion 2 and a hollow back portion 4 extending upwardly from the base. The razor R is of the type comprising an electric motor driven from a battery, the battery being charged when the razor is stored in the holder by way of transformer-rectifier charging means 6 housed partly in the base 2 and partly in the handle of the razor R. Along the inside surface of the portion 4 of the holder are attached two guide members 12, 14 in which can be housed a razor blade cartridge B against end stops 15 on the members 12, 14. The portion 4 of the holder is also arranged to house the leads 8 for the charging means 6.
Patent GB-1289043-A (GB)
IPC: F16B7/04
Filed: 1970-02-05
Abstract: 1289043 Joints for tubes LICENCIA TALALMANYOKAT ERTEKESITO VALLALAT 5 Feb 1970 5546/70 Heading A4H [Also in Divisions E2 and F2] Rectangular cross-section tubes 1, 2, have axial ribs 3, 4a, 4b with wedge-shaped apertures 7, 8, 9, 10; tube 2 abuts one face of tube 1 with the centre part 5 of rib 3 engaging slots 6 in tube 2 and wedgeshaped locking key 11 is received in each combined aperture 7, 9; 8, 10. The locking keys 11 may be of duralumin.