baber/WOPTO huggingface dataset:
Patent GB-1442476-A (GB)
Title: Method and apparatus for diffusing gas in a liquid
IPC: C02F3/20
Filed: 1974-09-05
Abstract: 1442476 Aerating liquids F C PRICE 5 Sept 1974 [25 Oct 1973] 38856/74 Heading B1C Apparatus for discharging small bubbles (e.g. # inch diameter) of gas into a liquid comprises a gas conduit having a horizontal surface and a gas opening formed in said surface, means covering said opening and extending radially for at least half the diameter of the opening over the surrounding horizontal surface and in abutting relation thereto, said means and conduit surface being relatively movable to allow gas flow radially outwards from said opening between said surfaces into the liquid. The openings 17 may be formed in the upper surface of the conduit as e.g. in conduits 22 shown in Fig. 1 and intended, for introducing oxygencontaining gas into sewage sludge in a treatment tank 10, the openings being covered by round discs 23; alternatively the openings may be in the lower surface as e.g. in conduit 21 shown mounted in a supply channel 11 for the tank 10, the opening-covering surface then being provided either by the bottom surface 19 of the channel or by a plane surface of a beam (37, Fig. 7 not shown) mounted thereon. In either case in which the openings are formed in the bottom surface the conduit 21 is fed with gas via flexible plastics pipes 25 to allow for the relative movement necessary to allow discharge of gas into the liquid. The discs 23 may be retained over their respective holes 17 by retainer bars 29 and pins 24 (Fig. 3) or by an overlying bar (35, Fig. 9 not shown). The conduit 22 is provided with a downwardly projecting pipe 27 for discharge of water at start-up of the aeration process.
Patent GB-873009-A (GB)
Title: Method and apparatus for cutting down cylindrical stereotype printing plates
IPC: B41D5/00
Filed: 1959-11-17
Abstract: 873,009. Printing surfaces. FAUGLI, P. R., FAUGLI, I. O., and HEGSVOLD, O. Nov. 17, 1959, No. 38971/59. Class 100(2) [Also in Group XXII] A method of cutting down the surfaces of cylindrical stereotype printing plates, leaving part of the plate surface raised above the remaining parts comprises attaching at least two similar printing plates to a rotatable drum, applying to corresponding parts of the plate surfaces which are not to be cut down a layer which during the rotation of the drum is scanned by means which control the movement of a cutting tool into and out of the operating position, and rotating the drum and scanning the surfaces of the plates, whereby when the layer on one plate is scanned, the corresponding part of the other plate is not cut down. Two semi-cylindrical stereotype printing plates having parts of their surfaces not to be cut away covered with electrically insulating layers C are secured to a rotatable drum, which is scanned helically by a finger D. When the finger passes over the layers C, an electromagnet E is deenergised and retracts the rotary cutting tool G, which is driven by a motor H, from the plate. Alternatively, the scanning means may be a feeler sensing a layer C of substantial thickness and operating mechanically, a light source and photoelectric cell sensing a layer C having different light-reflecting properties from those of the plate surface, or a magnetic scanning head, the layer C being of magnetic material.
Patent GB-1385598-A (GB)
Title: Flame arrestors
IPC: H02B11/26
Filed: 1973-08-17
Abstract: 1385598 Flame arrestors LAURENCE SCOTT & ELECTROMOTORS Ltd 17 Aug 1973 39004/73 Heading ASA [Also in Divisions H1 and H2] A flame arrestor for electrical apparatus comprises an exhaust passage for combustion and exhaust products and arranged therein first flame arrestor means for cooling gas and flame and, downstream thereof, second flame arrestor means for inhibiting a flame or spark from reaching the surrounding environment, the second means having a higher pressure drop and lower heat absorption capacity when in use than the first. The Figure shows a flame arrestor assembly which may be attached to a terminal box. Exhaust passage 1 consists of two distinct stages, first stage flame arrestor 3A, 3B, and second stage arrestor 4A, 4B. Arrestor 3A, 3B consists of metal grid plates arranged with their diamond shaped openings successively at right angles and separated by wire spacers, the metal being of high melting point, e.g. mild steel, at inlet side 3A, and low melting point, e.g. aluminium at 3B, to obtain the maximum heat absorption capacity. Arrestor 4A, 4B consists of a porous metal, e.g. a foam or gauze, with inlet 4A having a larger pore size than outlet 4B. The arrestor may alternatively be used in conjunction with a transformer tank filled with liquid or gas, or a cable sealing box filled with solid compound or liquid dielectric.
Patent GB-364824-A (GB)
Title: Improved means for securing taps to bottles and the like
IPC: B67D1/08
Filed: 1930-12-29
Abstract: 364,824. Measuring and pouring devices. THOMAS. J. W., Trafalgar Hotel, Swansea. Dec. 29, 1930, No. 39026. [Class 125 (iii).] Means for securing a tap to a bottle &c. 9, including in combination with a tap 4, having a fixed inlet pipe 3, a centrally apertured cap 1, for placement over the inlet pipe and over the mouth of the bottle, and a sleeve 6 for engagement over the inlet pipe, serving to secure the elements together, is characterized in that the sleeve is slidably engaged over the inlet pipe, a nut 8 bearing directly against the sleeve to lock the parts together. The cap 1 may be of the lever crown cork type, shown in the Figure, or it may be internally or externally screw-threaded. Washers 2, 11 are preferably used. In a modification, the sleeve is formed with an integral flange portion which beds within the cap, the lower end of the sleeve extending through it. The sleeve and cap may be made as a unitary structure ; or, alternatively, the sleeve may be formed in two portions attached to a separate cap.
Patent GB-899139-A (GB)
Title: Semiconductor devices
IPC: C25D7/12
Filed: 1958-12-03
Abstract: 899,139. Semi-conductors; electroplating. RADIO CORPORATION OF AMERICA. Dec. 3, 1958 [Dec. 23, 1957], No. 39066/58. Classes 37 and 41. The distance between the electrodes of a semiconductor, e.g. between the nickel tab and indium rectifying electrode, is controlled or reduced, thus rendering the device more efficient, by suspending the semi-conductor in an electroplating bath, connecting the nickel tab to the cathode and the indium electrode to an anode of the metal which is plated on the device except for a small area surrounding the indium electrode which is not sufficiently electronegative to plate. A junction transistor 10, Fig. 4, of P-N-P-type, consists of a wafer of germanium 11, a nickel tab 12 soldered thereto, and indium pellets alloyed on each side, 13 being the emitter, 14 the collector. The side with the collector electrode is coated with nitrocellulose as a resist to the plating step. The transistor is immersed in an electrolyte containing alkaline sodium stannate, sodium acetate and perborate, and the nickel tab is connected to the cathode of a cell 23, the indium electrode to the anode which is also connected to a block of tin 21. The potential between the electrodes is in the range ¢ to 2 volts. The space 18 between the nickel tab and the electrode is plated with tin, except for a small area around the electrode and the electrode 13 itself. By connecting the lead from the electrode to a potentiometer across the battery, the voltage at electrode 13 is reduced, and the unplated area may be reduced below 0.25 mil. The tin-plating may be subsequently heated to melting-point. Platings of Au, Pb, Cd, or Ag may also be applied to wafers of silicon, gallium arsenide or indium phosphide.
Patent GB-1528942-A (GB)
Title: Tritiated water treatment process
IPC: B01D15/00
Filed: 1975-09-24
Abstract: 1528942 Tritium AEROJET GENERAL CORP 24 Sept 1975 [7 Nov 1974] 39089/75 Heading CIA Tritium is removed from water by bringing the water into contact with a water-insoluble hydrophilic material containing hydrogen atoms which isotopically exchange with tritium atoms in the water, and then contacting the hydrophilic material with a basic liquid which exchanges hydrogen atoms for tritium atoms on the hydrophilic material, so producing a liquid having a higher tritium concentration than that of the water treated. Cooling water from a nuclear reactor may be contacted with cotton, followed by treating the cotton with 3N sodium hydroxide solution; tritiated water is then separated from the sodium hydroxide solution by distillation. Other solid hydrophilic materials referred to contain hydroxy, carboxy, ketone, aldehyde, ether, or amine groups, for example, wood or protein. A system is described with reference to a drawing in which two exchange cells containing the hydrophilic material are provided, one cell being used for contact with the cooling water, while the other cell is used for sodium hydroxide treatment.
Patent GB-1268554-A (GB)
Title: Vibration machine for grading and sorting cucumbers
Inventor: BASS GYOZO
IPC: B07B13/07
Filed: 1969-08-07
Abstract: 1,268,554. Grading cucumbers. LICENCIA TALALMANYOKAT ERTEKESITO VALLALAT. 7 Aug., 1969, No. 39525/69. Heading B2H. A machine for grading cucumbers comprises a resiliently-mounted mechanism 3 which sorts cucumbers by length and consists of a plate 12 having ribs 13 defining between them channels along which the cucumbers 20 move, and apertures 14 .of different lengths c, d, e through which the cucumbers fall; the mechanism is vibrated to propel the cucumbers by an electromagnetic vibrator 5b. The cucumbers are initially graded by diameter by a mechanism 2 comprising a resiliently-mounted inclined tray driven by an electromagnetic vibrator 5a and having channels (10) (Fig. 7, not shown), the sides of which diverge downwardly, thus providing an aperture of increasing width. The ribs of both mechanisms may be formed by strips of angle-steel (Figs. 4, 6, not shown). The apertures 14 may be provided with turned edges 15.
Patent GB-952275-A (GB)
Title: An ignition coil
Inventor: KIRSANOVA IRINA KARLOVNA
IPC: H01F38/12
Filed: 1962-10-19
Abstract: 952,275. Induction coils. ZAVOD AVTOTRAKTORNOI ELEKTROAPPARATURY ATE-2. Oct. 19, 1962, No. 39719/62. Heading H1T. A potted ignition coil has its synthetic resin pot 1 provided with integral attachment means for mounting the coil. The core 2 and winding 3 are placed in a mould with an insulating piece 4 and the resin, e.g. polyethylene, is injected. The leads 5 are moulded in the walls and soldered to the terminals. A spring (not shown) may be provided between one end of the coil and the adjacent inner face of the end of the pot to allow for the different thermal expansion of the core and pot in use.
Patent GB-1324052-A (GB)
Title: Preparation of prostanoic derivatives
IPC: C07C405/00
Filed: 1971-08-25
Abstract: 1324052 Prostaglandins UPJOHN CO 25 Aug 1971 [11 Sept 1970(3)] 39941/71 Heading C2C The invention comprises processes for producing PGA 2 , PGA 2  methyl ester and PGA 2  acetate methyl ester from the marine invertebrate plexaura homomalla (Esper), 1792, forma S., and 15#-PGA 2 , 15#-PGA 2  methyl ester and 15#-PGA 2  acetate methyl ester from the marine invertebrate Plexaura homomalla (Esper), 1792, forma R; by extracting said marine invertebrates with a solvent and separating said compounds from resulting extract, and processes from the production of PGA 2  and PGE 2 , or 15#-PGA 2  and 15#-PGE 2  and the methyl esters thereof from colonies or colony pieces of Plexaura homomalla (Esper), 1792, forma S or Plexaura homomalla (Esper), 1792, forma R respectively by maintaining the said colonies or colony pieces after removal from their marine environment in contact with water in a temperature range up to 50‹ C. until substantially all the C-15 acetates originally present in the colonies or colony pieces are hydrolysed to C-15 hydroxy compounds, then extracting the thus treated marine invertebrate with neutral organic solvents, and separating said compounds from the resulting extracts. The corresponding 5,6-trans. compounds of PGA 2  and 15#-PGA 2  and their methyl esters and acetate methyl esters, and the 5,6-trans. compounds of PGE 2  and 15#-PGE 2  and their methyl esters are obtained as by-products in the above processes. PGE 2  15-acetate methyl ester and 15#-PGE 2  15-acetate methyl ester are also obtained as minor products in the first mentioned process above.
Patent GB-1064411-A (GB)
Title: Improvements in and relating to the production of an additive-treated cellular polymeric material
Inventor: GLANVILL ALAN BIRKETT
IPC: C08J9/36
Filed: 1964-10-01
Abstract: Additive-treated cellular polymeric material is obtained by contacting expandable or expanded polymeric material with live steam which contains a steam-volatile additive for treating said cellular polymeric material which has been added to said steam in predetermined controlled amount.  The preferred expandable or partially expanded polymeric materials contain a vaporizable expanding agent, e.g. npentane, and are foamed by conventional extrusion or moulding techniques employing live steam at one or more stages in the foaming process.  The thermoplastic polymer may be a polymer or copolymer of a vinyl-aromatic compound particularly polystyrene.  The preferred steam-volatile additives are anti-static agents, particularly quaternary ammonium salts; corrosion inhibitors such as amine nitriles; or oil-soluble dyestuffs or other colourants which can be rendered steam volatile by admixture with a stea volatile liquid.
Patent GB-1515119-A (GB)
Title: Rotary locking mechanism
IPC: B29C33/02
Filed: 1975-09-30
Abstract: 1515119 Moulding tyres COOPER TIRE & RUBBER CO 30 Sept 1975 [11 Oct 1974] 39963/75 Heading B5A A clamping and locking mechanism for securing together co-operating ring-shaped elements, e.g. fixed and movable structures 20 and 18, respectively, providing a curing chamber of a tyre press, includes a ring 56 secured to one element, e.g. the structure 20, a locking ring 58 with lugs 60 for engagement with lugs 78 on the other element, e.g. the structure 18, a draw ring 64 threaded to both rings, and means for rotating it to bring the rings together whereby the elements are clamped together. The locking ring is turned by an air cylinder to allow the lugs 78 to be lowered below the lugs 60 whereby the ring is again turned to vertically align the lugs which are then forced into abutment by rotating the draw ring by a pinion engaging a gear 74. The structures include mould halves 24, 34 the latter being vertically adjustable relative its structure 18 by threaded members 19-31, the member 29 being rotated by a gear 26. A number of curing chambers may be aligned within a framework along which a mechanism traverses for raising and lowering the upper structures in turn.
Patent GB-838900-A (GB)
Title: Arrangements for the automatic sharp tuning of oscillatory circutis
IPC: H03J7/30
Filed: 1958-12-12
Abstract: 838,900. Electric analogue calculating systems. STANDARD TELEPHONES & CABLES Ltd. Dec. 12, 1958 [Dec. 14, 1957], No. 40171/58. Class 37. [Also in Group XL (c)] A differentiating circuit comprises a pentode V1 (or transistor) and a transformer T.
Patent GB-857363-A (GB)
Title: Improvements in and relating to clutch discs for electromagnetically operated friction clutches
Inventor: BRUGGER HANS
IPC: F16D13/64
Filed: 1958-12-12
Abstract: 857,363. Making clutch discs. ZAHNRADFABRIK FRIEDRICHSHAFEN A.G. Dec. 12, 1958, No. 40214/58. Class 83 (2). [Also in Group XXIV] In a clutch disc for an electromagnetic clutch wherein outer and inner ferromagnetic disc parts 1, 2 are interposed by a non-magnetic zone comprising either a complete ring 3, as shown, or several inserts of a non- magnetic material, Figs. 2 and 3 (not shown), as described in Specification 794,958, the non- magnetic material is connected to the ferromagnetic disc parts by fusion welding. The non-magnetic material may be welded to the disc parts by electric arc using a protective inert gas, such as argon, to prevent local decarbonization of the discs, in which process the non-magnetic material may alternatively be deposited from the electrode, or by gas in which process the disc parts are of low carbon steel and the disc is hardened after welding.
Patent GB-1097958-A (GB)
Title: Container fastening device
IPC: E05B65/52
Filed: 1965-09-21
Abstract: 1,097,958. Case fastenings. LONG MANUFACTURING CO. Inc. Sept. 21, 1965 [Jan. 21, 1965], No. 40281/65. Heading E2A. A fastening device adapted to be mounted on separable parts of a container adjacent a line of separation therebetween comprises a keeper 13 adapted to be fixed to one of the separable parts and a unit adapted to be mounted on the other of said separable parts and including a housing member 16 defining a well 19 of substantially circular segment configuration, a movable fastening member of substantially corresponding configuration to said well, means 31 supporting said fastening member so as to permit circumferential displacement of the fastening member relative to the well, from a normal fastening position in which the member is nested in registering relation in said well, to a releasing position displaced circumferentially from said fastening position in one direction, said housing and fastening members having keeper receiving apertures 37, 32 therein adapted to receive a portion 35 of said keeper when said separable container parts are in a closed position, and said fastening member aperture including means 34 for fastening the keeper portion therein against withdrawal therefrom and for freeing the keeper portion for withdrawal when said fastening member occupies said fastening and releasing positions respectively. In the construction shown the aperture 32 has two portions a relatively wide portion 33 and a relatively narrow portion which forms the means 34 and when the fastening member is in the releasing position the keeper portion 35 can enter the portion 33 subsequent to movement of the fastening member to fastening position bringing the keeper portion 35 into the narrower portion 34; the keeper portion 35 is grooved so that when it is in the narrower portion 34 it cannot be withdrawn. The fastening member is located in its releasing and fastening positions by a spring loaded ball which is engageable with either of a pair of detents 41 or 41' and its movement in the releasing direction is limited by a post 48 which protrudes from the surface of the well. A key operated bolt 45 is provided which in the fastening position of the fastening member is slidable by means of the key to overlie the post 48 and so prevent release of the keeper. A housing in which the bolt slides has a spring like extension 46a which in the unlocking position of the 'bolt engages a notch in the bolt and in the locking position of the bolt engages behind the end of the bolt to restrain movement of the bolt.
Patent GB-1369219-A (GB)
Title: Lawn mower sharpening attachment
IPC: B24B3/42
Filed: 1972-10-24
Abstract: 1369219 Sharpening lawnmowers P D SPRINGALL Ltd 24 Oct 1972 [27 Aug 1971] 40390/71 Heading B3D A sharpening attachment for a grass cutting machine comprises an abrasive element 3 adapted for removable connection to a tie bar 18 of the machine in a position such that the element is disposed so as to sharpen the blades of the machine on rotation of the blades. The abrasive element may be a block of silicon carbide or fused aluminium oxide or, as described, a sheet 3 of abrasive secured beneath flanges 30 to a frame 4 on the back of which are tubes 23, 24. Members 5, 6 consisting of triangular plates 21 having holes 22 are secured to the back of the frame by engaging slots in the tubes and being engaged by rods passing through the tubes and the holes 22. A further hole 22 in each plate is engaged by a pivot 25 joining the plate to a respective arm 7, 8 having a body portion 10 formed with a hooked end 11 for engaging the tie bar 18. The angular position of the arms 7, 8 with respect to the members 5, 6 is determined by engagement of the rod passing through the tube 24 with a selected fluting 26 on an arcuate part of the body portion 10. In an alternative arrangement, the portion 10 and plate 21 each have a circular series of holes arranged around the pivot 25, the number of holes in one series differing by one from the number of holes in the other series and a pin 29 is placed in aligned holes when the portion 10 and part 21 are in their adjusted position. Each portion 10 has a hole 13 for receiving a spring rod 14 which engages a notch in an arm 17 of a positioning member 15 which is secured in position on the tie bar 18 by a hose clip whereby the spring rod acts on the arm 17 to pivot the arms 7, 8 and member 5, 6 around the rod 18 to press the abrasive sheet 3 against the blades.
Patent GB-994609-A (GB)
Title: Vulcanisation process
IPC: C08L9/00
Filed: 1963-10-14
Abstract: A process for the vulcanization of one or more natural or synthetic elastomeric diene polymers or copolymers in which the diene component is butadiene or isoprene, and which contain at most a minor proportion of polymerized isomonolefins comprising using a phenol aldehyde resin, containing free or esterified or etherified alkol and free or esterified phenol groups as a vulcanizing agent, and from 0.2 to 5% by weight based on the weight of the elastomer of an acid as an activator, said acid being a monobasic organic acid having up to 12 carbon atoms or an organic polybasic acid, or an anhydride of said acids where such exists, a complex acid of a zinc halide or of boron trifluoride with any one of the aforementioned acids or with a monohydric or polyhydric alcohol or a complex compound of boron trifluoride with water.  Preferred elastomers are butadiene-acrylonitrile rubber, butadiene-styrene rubber, polybutadiene, polyisoprene, natural rubber or polychloroprene. Preferred activators are the unsaturated dicarboxylic acids or their anhydrides.  Accelerating effect of the activators is improved by the addition of one or more of the oxides of the metals of Group II and III of the Periodic Table, or the oxides of heavy metals, i.e. those having a specific gravity greater than 4.  Halides of the above metals may also be added.  The activator may be added in the form of a paste or a solution in a plasticizer.  Specifications 892,462 and 955,235 are referred to.
Patent GB-1124446-A (GB)
Title: Evaporator
IPC: C02F1/14
Filed: 1966-09-12
Abstract: 1,124,446. Evaporators for the desalination of sea water. UNITED STATES ATOMIC ENERGY COMMISSION. 12 Sept., 1966 [22 Sept., 1965], No. 40542/66. Heading BIB. Sea water is pumped into a manifold 18 at the base of housing 10 which contains vertical cylindrical chambers 12 each surrounding a vertical heat-conductive tube 16. The sea water rises up tubes 16 to heaters 22 and then weirs over the upper rim of each tube and flows in film-form down the wall 17 of the surrounding chamber 12. Water-vapour is evolved from the films of sea water; and the vapour condenses on the outer surfaces of the tubes 16, thereby preheating the sea water rising within them. The condensate (distilled water) runs down the outer surfaces of tubes 16, which are fluted, and collects in manifold 26. Residual brine collects in manifold 20. There is a spacing of about ¢" between wall 17 and tube 16. Helical vanes 28 'hold the films of sea water against walls 17, but a thin layer of wire or plastic mesh may also be used for this purpose. The housing 10 may be made of concrete, plastic or metal. Another evaporator is described in which a preheater/condenser conduit of rectangular configuration is disposed between two vertical wire screens for guiding the downflowing films of liquid. It is stated that a plurality of evaporators may be vertically stacked, and operated so that the brine withdrawn from an upper evaporator is used as heating-medium in the heater of the next lower evaporator.