baber/WOPTO huggingface dataset:
Patent GB-1042330-A (GB)
Title: Apparatus for making beverages such as coffee
IPC: A47J31/00
Filed: 1963-09-10
Abstract: 1,042,330. Beverage making apparatus. CORY CORPORATION. Sept. 10, 1963 [Sept. 13, 1962], No. 35649/63. Heading A4D. Apparatus for brewing coffee has a brewing chamber or cartridge 16 to contain the appropriate amount of coffee, an electrically heated tank 19 to provide hot water and control means to provide delivery of a pre-selected quantity of hot water to initiate brewing and after an interval to provide more hot water to continue brewing and cause delivery of coffee into a decanter 18. A suitable amount of ground coffee for the quantity required is placed in the cartridge 16, the control device is set by means of knob 113 for the number of cups of coffee required and when a signal light 116 indicates that the water in tank 19 is hot enough knob 113 is pressed in momentarily to close a switch and set in motion the motor and cams of the control device so that a sufficient quantity of hot water is delivered through an inlet tube 38 to the cartridge to wet the ground coffee and initiate brewing. After a delay proportional to the number of cups required, more water is supplied to cause hot coffee to flow through a filter 72 and spout 60 to the decanter.
Patent GB-356580-A (GB)
Title: Improvements in and relating to the manufacture of ammonium sulphate
IPC: C01C1/244
Filed: 1930-11-27
Abstract: Ammonium sulphate is continuously produced by wet grinding calcium sulphate in any form with ammonium carbonate solution, the respective quantities being substantially those required for carrying out the reaction.  The reaction may be carried out in a continuous wet grinding mill, the reaction mixture being directly filtered at the outlet preferably by continuous vacuum filters arranged at a lower level.  If the filtered solution is slightly ammoniacal it may be freed from ammonia by distillation or by neutralization with sulphuric acid.  The neutral solutions are finally evaporated in multiple effect evaporates.  The reaction may be completed in one or more reaction vessels arranged in series with the wet grinding mill provided with stirring means, the filtration taking place subsequently.
Patent GB-394685-A (GB)
Title: Improvements in coating or filling textile fabrics
IPC: D06B3/10
Filed: 1931-12-30
Abstract: 394,685. Coating fabrics. BRITISH CELANESE, Ltd., 22, Hanover Square, London, MELLOR, A. and MANN, R. J., c/o British Celanese, Ltd., Spondon, near Derby. Dec. 30, 1931, No. 35971. [Class 140.] In apparatus for coating or filling fabrics, the fabric is passed between a stationary resilient bed and spreading means such as a knife or doctor. The resilient bed may comprise a rubber sheet 23, Fig. 1, stretched over a recess 25 in a wooden beam 24. Contacting with the fabric above the recess is a doctor blade 35, adjustable for height and inclination. The coating or filling material is supplied from a tank 36 through a pipe 37, and the pool of material is confined by side plates. The tension of the rubber sheet may be adjusted by means of a clamp 27, Fig. 3, and the wooden beam may be resiliently mounted on springs 46. The fabric is drawn through the apparatus by the rotation of a drying cylinder 52, Fig. 1.
Patent GB-1044371-A (GB)
Title: Acoustic gas detection and measurement apparatus
Inventor: SHILLINGFORD HENRY STEPHEN
IPC: G01N29/036
Filed: 1961-10-06
Abstract: 1,044,371. Acoustic gas analysis. COAL INDUSTRY (PATENTS) Ltd. Oct. 5, 1962 [Oct. 6, 1961; March 19, 1962], Nos. 36017/61 and 10423/62. Heading H4D. An acoustic gas analyser comprises two electro-acoustic transducers acoustically coupled by the gas and electrically coupled via an amplifier the frequency of the resulting resonant oscillations of the system being indicative of the composition of the gas. In accordance with the invention the relationship between the frequency and loop gain of the system is made such, by the use of an electrical filter and by adjustment of the phase shift and/or gain of the amplifier, that modes of resonant oscillation other than the half-wavelength mode (measured in the gas between the two transducers) are prevented from occurring. Details of the constructional features of two embodiments each comprising a pair of electro-acoustic transducers positioned at either end of a gas sample tube a plurality of which may be connected at different respective positions on a gas pipe line system (e.g. a methane drainage gas main) are given with reference to Figs. 2 and 3 (not shown). A transistorized amplifier incorporating the filter and the phase-shift and gain control arrangement is described with reference to Fig. 4 (not shown).
Patent GB-1460240-A (GB)
Title: Lewis acid-fluorine compounds of carbon
IPC: C01B31/00
Filed: 1975-09-02
Abstract: 1460240 Lewis-acid fluorine compounds of carbon EXXON RESEARCH & ENG CO 2 Sept 1975 [12 Nov 1974] 36091/75 Heading C1A A novel superacid salt is made by contacting graphite or amorphous carbon with elemental fluorine and a Lewis acid selected from BF 3 , PF 5 , AsF 5 , SbF 5 , TaF 5 , SiF 4 , SO 3 , PtF 4 , NbF 5 , VF 5 , UF 6 , and TiF 4 . The carbon may be in any form such as fibres, woven cloth, or finely divided material, and the reaction may be performed at - 127-#625‹ C. The fluorine may be diluted with a gas such as N 2 , He, CCl 4  or Ar, and the amount of guest anion to be combined with carbon ranges from 0À5 wt. per cent to 75 wt. per cent. Compounds derived from graphite can be thermally decomposed to form exfoliated graphite.
Patent GB-1363871-A (GB)
Title: Drilling fluids and additives therefor
IPC: C09K8/04
Filed: 1971-08-02
Abstract: 1363871 Phenolic-resin compositions DRESSER INDUSTRIES Inc 2 Aug 1971 [3 Aug 1970] 36136/71 Heading C3R [Also in Division E1] A composition suitable for use as a drilling fluid additive comprises the reaction product or a physical mixture of (1) at least one salt of sulphonated lignite, sulphonated humic acid and/ or derivatives thereof, and (2) at least one water-soluble phenol-aldehyde condensate and/ or modified phenol-aldehyde condensate. In an embodiment the composition may comprise a physical mixture of the above reaction product and at least one sulphonated lignite or humic acid phenolic condensate, modified phenolic condensate and/or derivatives thereof. The preferred phenolic condensate is obtained from the reaction of a phenol, an aldehyde and a metal salt of sulphurous acid, which may be modified with an aromatic carboxylic acid, such as salicylic acid, urea or melamine, an organic acid anhydride or a dibasic acid. The reaction mixture of (1) and (2) preferably contains one or more aldehydes and/or hydroxides. The cation for the salt (1) is preferably an alkali metal, alkaline earth metal and/or an ammonium cation. The lignite derivatives may be further complexed with a transition metal salt, many examples of which are listed. The examples describe the preparation of water-soluble phenolic condensates prepared from (i) phenol, paraformaldehyde, sodium sulphite, sodium bisulphite alone and also modified with salicylic acid, urea, melamine, phthalic anhydride; (ii) phenolsulphonic acid sodium salt, HCHO with toluenesulphonic acid and/or methanesulphonic acid as catalyst alone and also modified with salicylic acid and urea; (iii) phenol, HCHO with H 2 SO 4  as catalyst, (iv) phenol, paraformaldehyde with NaOH as catalyst alone and also modified with salicyclic acid. Many examples of the above are given with variations in reaction procedures. Numerous examples are given of the reaction of the above phenolic condensates with sulphonated lignite to form drilling fluid additives, some of which are further modified by complexing with chromium sulphate. Uses.-Additives for drilling fluids comprising an aqueous and/or organic base, clay or asbestos and conventional additives; tanning industry; controlling fluid loss in cement slurries.
Patent GB-798994-A (GB)
Title: Improvements in or relating to fluid-cooled metal-walled electronic devices
IPC: H01J13/32
Filed: 1956-11-28
Abstract: 798,994. Discharge apparatus. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. Nov. 28, 1956 [Nov. 30, 1955], No. 36381/56. Class 39(1). A fluid-cooled metal-walled electronic device is provided with a self-reinforcing cellular double wall to withstand the external atmospheric pressure during the stage in the process of manufacture in which the wall is heated for degassing purposes while maintaining a vacuum inside the device. The ignitron shown in Fig. 3 has an evacuated tank 4 having a side wall 5 of stainless steel closed by an anode-header 6 and a cathode-header 7, and contains conventional internal parts including a mercury cathode 8, a plurality of electrically connected graphite anodes 9, an ignitor 10, shields 12, deionizing member 13, baffle 14, arc centring ring 15 and a cooling-coil 16. An anode lead 17, ignitor-lead 18 and inlet and outlet ends 21 and 22 of the coil 16 pass through the wall and headers of the tank 4. The wall 5 is surrounded by a waterjacket 23 comprising a metal cylinder 26, a helically shaped metal spacer 25 and upper and lower vacuum-tight closure members 27 and 28. The outlet end 22 of the cooling-coil 16 discharges into the water-jacket space and an outlet 24 is provided. In assembling the waterjacket, the helical spacer 25 is first placed around and is preferably tack-welded or otherwise mechanically fixed to the wall 5 at a plurality of spaced places, as shown at 29. The outer cylinder 26 is then slid over the spacer 25 leaving a space of the order of 0À4 mm. between the cylinder and spacer as shown in Fig. 1. The closure members 27 and 28 are then fixed in position and the jacket 23 evacuated, e.g., by closing the outlet 24 and connecting a vacuum pump to the inlet 21 of the coil 16. The wall 5 is then heated to the degassing temperature of about 900‹C., whereupon the external atmospheric pressure permanently deforms the cylinder 26 into contact with the spacer 25, causing the latter in turn to be permanently deformed into close contact with the wall 5, as shown in Fig. 2, after which all three parts are further deformed a small distance during the remainder of the degassing operation. The upper closure member 27 is preferably made thinwalled and U-shaped, as shown, to accommodate unequal expansions of the cylinder 26 and wall 5, and the spacer 25 is preferably secured to the cylinder 26 at a number of places by drilling holes 30, Fig. 1, through the cylinder 26 and filling these with welding material 31 to prevent the cylinder 26 and wall 5 deforming to an elliptical shape. The helical spacer 25 may be replaced by an assembly comprising one or more curved members extending at least partially around the circumference of the wall 5 in a plurality of axially spaced tiers. The double-walled construction enables the tank wall 5 to be made thinner than usual, thus saving expensive stainless steel.
Patent GB-1440171-A (GB)
Title: Treatment of acqueous effluents to remove nitrate and nitrate ions
Inventor: CLIMENHAGE DAVID CHARLES
IPC: C02F3/30
Filed: 1973-07-31
Abstract: 1440171 Denitrifying nitrate- and nitritecontaining effluents DU PONT OF CANADA Ltd 31 July 1973 [31 July 1972] 36387/73 Heading C1C A process for the treatment of aqueous effluent having a pH of less than 6 containing nitrate and/or nitrite ions and matter capable of forming such ions under aerobic conditions, together with sufficient carbonaceous matter to permit substantially complete bacterial denitrification of the effluent, comprises introducing the effluent into an anaerobic zone containing denitrifying bacteria at a rate such that the concentration of N in the form of nitrate and nitrite ions in the zone is less than 20 mg/ litre, the acidic component of the aqueous effluent initially containing enough nitrogenous matter to give a pH of at least 6 in the treated effluent after denitrification.
Patent GB-1180846-A (GB)
Title: Photopolymerisation of Ethylenically Unsaturated Organic Compounds
Inventor: LARIDON URBAIN LEOPOLD
IPC: G03F7/038
Filed: 1967-08-08
Abstract: 1,180,846. Photopolymerization. GEVAERTAGFA N.V. 15 July, 1968 [8 Aug. 1967], No. 36394/67. Headings C3G and C3P. [Also in Division G2] Ethylenically unsaturated compounds are photopolymerized by a process comprising exposing to actinic light a composition containing an ethylenically unsaturated compound and, as photopolymerization initiator, a compound containing at least one oxime ester group (i.e. an O-acylox group). The initiator may be a monomeric compound containing one or two oxime ester groups or a polymeric compound (as described in Specification 1,180,845) which contains oxime ester groups in side chains or as integral parts of the main polymer chain. When, in the polymeric initiators, the oxime ester groups are in side-chains, e.g. in a methyl methacrylate - 2,3 - butanedione - mono - (O - methacrylyloxime) copolymer, the ethylenically unsaturated monomer is graft polymerized on to the polymeric initiator; and when the oxime ester groups are included in the main chain, as in a polyester-type condensation product, the initiator is fragmented by actinic light and the fragments are block copolymerized with the ethylenically unsaturated monomer. The photopolymerization can be effected in bulk, emulsion, suspension or solution; polymerization may be effected in the presence of a hydrophilic or hydrophobic, natural or synthetic polymeric carrier or binding agent. Ethylenically unsaturated monomers specified are styrene, acrylamide, methacrylamide, methyl methacrylate, diethylamino-ethyl methacrylate and acrylonitrile and mixtures thereof; and compounds having more than one double bond such as divinyl benzene, diglycol diacrylates and N,N- alkylene-bis-acrylamides, and allyl esters of polyacrylic acid, maleic esters of polyvinyl alcohol, polyolefins containing residual unsaturation, unsaturated polyesters, cellulose acetomaleates and allylcellulose. The photopolymerization process is useful in the preparation of photographic images, and the polymerization products are also useful in adhesives, coating, impregnating and safety-glass interlayers. The process can also be effected in a mould to give articles such as lenses.
Patent GB-760466-A (GB)
Title: Improvements in electric fence units
IPC: H05C1/04
Filed: 1954-12-16
Abstract: 760,466 Electromagnetic interrupters. ELECTRO-MAGNETIC PRODUCTS, Ltd. Dec. 16, 1954 [Dec. 22, 1953], No. 36508/54. Class 38(5) An electric fence unit of the type in which a flywheel 17 is given periodic mechanical impulses by the armature 18 of an electromagnet is provided with spring tension means to check the movement of the flywheel and return it to its normal position, the spring 13 of the tension means forming no part of the electric circuit and being mounted on a rod 10 such that by turning the rod 10 the frequency of the oscillations of the flywheel and hence of the electric impulses to the fence may be varied. A tangential portion 13a of the spring is attached to the flywheel by means of an insulating cord 15 at a point 16 near a contact 17a on the flywheel which cooperates with a contact 18a on the armature 18 which is located in the normal position by springs 21. When the contacts 17a, 18a complete the electric circuit the electromagnet attracts the armature 18 thereby imparting a mechanical impulse to the flywheel to rotate it anticlockwise (as shown). This movement winds the cord 15 around a spindle 19 of the flywheel thereby increasing the tension in the spring 13. The flywheel is returned by virtue of the tension in the spring the effect of which becomes greater when the cord 15 leaves the spindle 19; thus the final closing of the contacts 17a, 18a is made more positive. Adjustment of the rod 10 and thus of the spring 13 is made by means of a knob affixed to the rod 10 outside the case 11. Current is led to the flywheel 17 by means of a volute spring 20.
Patent GB-1391300-A (GB)
Title: Construction of radioactive lightning conductors
IPC: H05F3/04
Filed: 1972-08-04
Abstract: 1391300 Lightning conductors NUCLEAR IBERICA SA 4 Aug 1972 [7 Aug 1971] 36541/72 Heading H2C [Also in Division F2] A lightning conductor comprises a radioactive source 4 disposed on the outer surface of a support 3, a bearing 5 mounted on an earthed rod 1 and provided with arms 6 which support vanes 7 rotatable by the wind, an arm 8 mounted on one of the arms 6 and a brush 9 which bears against the source in order to clean it. A grid or grating 12, which accelerates the ions formed by collision of the alpha particles from the source 4 with air molecules, is mounted on the support 3 by ceramic insulators 13. The source 4 may comprise radium-226 or americium-241 and the brush is pivotally supported on the arm 6 so that at high wind velocities it moves away from the support 3 to prevent excessive wear on the source 4. In a modification, the support 3 and the grid 12 are frusto-conical.
Patent GB-1362422-A (GB)
Title: Thickener and method for concentrating suspensions
IPC: D21F1/66
Filed: 1971-08-05
Abstract: 1362422 Rotary screen thickener J M VOITH GmbH 5 Aug 1971 [7 Aug 1970] 36777/71 Heading BID  In a rotary screen thickener for paper pulp suspensions &c., a pump supplies the suspension to a nozzle 3 which directs it through a slot on to the cylindrical screen 2 at an angle thereto between 30 and 90 degrees, a preliminary dewatering taking place at the point of impingement and the cake formed thereby being washed off by the suspension behind which is thrown tangentially from the screen. One or more baffles 14, 14' may redirect this suspension on to the screen to effect similar dewatering steps and the suspension which reaches the surface of suspension 6 in trough 1 creates turbulence to wash the screen clean again. The screen rotates through the trough, where conventional filtration occurs, water being discharged at both ends of the screen and filter cake accumulating thereon and being removed by rotary couch roll 10 and blade 11. Concentrated suspension is discharged over weir 7. Rubber skirt 12 prevents splashing of roll 10, and resilient lip 13 on nozzle 3 wears down to conform to the screen periphery. In use, greasy waste paper pulp would be directed on to the screen at over 2 metres per second and lightly crushed unground cellulose suspension at over 7 metres per second.
Patent GB-1112675-A (GB)
Title: Transistorized television receiver
IPC: H04N5/44
Filed: 1965-08-27
Abstract: 1,112,675. Television receiving circuits. INTERNATIONAL STANDARD ELECTRIC CORPORATION. 27 Aug., 1965 [28 Aug., 1964], No. 36914/65. Heading H3Q. In a double superhet television receiver having transistors at least in the second intermediate frequency stage, the vision carrier frequency of the second intermediate frequency stage is chosen to be higher than the sound carrier and is higher than 10 Mc/s. and less than 17 Mc/s. and the frequency controlling circuits of the stage amplifying the second intermediate frequency consist of non-adjustable capacitances, coils and resistances for avoiding the necessity of alignment. The second I.F. amplifier and components of the resonant circuits may be formed by thin-film or integrated circuit techniques. To further improve the transmission characteristic of the second I.F. stage band-pass filters may be arranged between the transistors of the stage.
Patent GB-797064-A (GB)
Title: A battery-charge regulator
IPC: H02J7/14
Filed: 1956-12-05
Abstract: 797,064. Charging batteries. INNOCENTI SOC. GENERALE PER L'INDUSTRIA METALLURGICA E MECCANICA. Dec. 5, 1956 [Dec. 9, 1955], No. 37200/56. Class 38 (4). A battery charging system for use on a motor cycle comprises an alternator and a rectifier, overcharge of the battery being prevented by shunting the alternator with an ohmic resistor when the battery nears its fully charged condition. A battery 5 is charged from an alternator 1 over a rectifier 4, the circuit including a winding 9 of a polarized relay 7. The relay 7 has a further winding 8 supplied by the battery 5, the windings 8, 9 being in magnetic opposition. With the battery 5 in a partly discharged condition the high charging current in the winding 9 overcomes the effect of the winding 8 and thereby maintains the armature 10 of the relay 7 unattracted such that the battery receives a high charging current. When the battery 5 approaches its fully-charged condition the currents in the windings 8, 9 are such that the winding 8 predominates, whereby armature 10 is attracted so shunting the alternator 1 by a resistor 6 to reduce the battery charging current.
Patent GB-943518-A (GB)
Title: Improvements in or relating to clamps
IPC: H01R4/32
Filed: 1961-10-17
Abstract: 943,518. Clamps. W. S. A. ENGINEERING CO. Ltd., and R. CESCOTTI. Oct. 17, 1962 [Oct. 17, 1961], No. 37242/61. Heading E2B. A clamp comprises in combination, a screwthreaded member 11, a base member 12 containing a slot 19, a covering member 13 adapted to fit over the base member 12 and provided with a slot 20 to co-operate with the slot 19 in the base member so as to provide a clamping action when the covering member is urged towards the base member, a pair of members 14, 15 each provided with a groove at right angles to the axis of the screw-threaded member, the grooves co-operating to form a pair of jaws 23, and a nut 18 engaging the central screw thread and urging the jaws towards one another and the covering member towards the base member. As shown, the slots 19 and 20 which are intended to clamp a rod at right angles to the axis of the member 11 are substantially U-shaped in cross-section, the slots opening to the side approximately, but not exactly, parallel to one another. The members 14, 15 are provided with co-operating projections 26, 27 which prevent relative rotation or the members and provide for pivoting movement of the members to clamp a rod between the jaws 23. A spring 16 and washer 17 are provided between the nut 18 and member 15.
Patent GB-322654-A (GB)
Title: Improvements in and relating to fluid segregator
IPC: B01D17/02
Filed: 1928-12-17
Abstract: 322,654. Samiran, D., and Melville P. Dec. 17, 1928. Separating by gravity.-Float-controlled apparatus for separating liquid components of different specific gravities, particularly applicable to the separation of water and sediment from petrol, is provided, in addition to the normal liquid outlets, with a passage 5, Fig. 2, to facilitate the displacement of light liquid from the float chamber on entrance of a heavier liquid. Means also are provided for adjusting the buoyancy of the float and for avoiding vibration effects. The device has a float chamber 7 which may be of glass closed by a casting 2. The casting 2 has a large inlet 3 leading to a deflector 4 and filter 26. Within the inlet 3 is the passage 5 slotted at 38 to communicate with the inlet and also connected with a liquid outlet 6 normally leading to the carburettor. The bottom of the float chamber is threaded to receive a tubular valve stem guide 14 provided with a needle valve 30, the upper end of which is connected by springs 31 with the float. A drain valve 21 with an outlet 24 is operated by a handle 25. Fluid passes through a sieve 39 into the inlet 3 to the deflector 4 and through the sieve 26 to the float chamber. A series of stand pipes 32 of varying length serve to vary the buoyancy of the float. The stand pipes are adjusted by lock washers 34 and the float is inverted, immersed in water, and allowed to fill. Water enters one stand pipe and air escapes through the other, so that the float fills up to the inner ends of the stand pipes and no further. When the float has been filled thus far, a washer 33 and lock 34 are rotated to seal the stand pipes. The float is then reversed and assembled as shown. In a diagrammatic view, Fig. 5, B represents the buoyancy level, while C represents petrol and D water. When a large quantity of water enters by the inlet 3, the circulating passage 5 allows ready displacement of the lighter component from the float chamber into the feed line at a point above the entrance 3. When the'water has entered the float chamber, a rise in the bouyancy level B takes place, the float rises and opens the needle valve so as to drain the water off. Springs 31 counteract vibration, tilting and various movements which might interfere with the proper action of the float.