baber/WOPTO huggingface dataset:
Patent GB-974402-A (GB)
Title: Ethylene copolymers
IPC: C08J7/18
Filed: 1963-03-27
Abstract: 2-Methacryloxyacetophenone is prepared by stirring 2-hydroxyacetophenone and methacrylyl chloride in aqueous sodium hydroxide, dissolving the resulting oil phase in ether, extracting with water, drying, stripping and distilling at 110-112 DEG C. 2-acryloxyacetophenone, 4-acryloxyacetophenone and 4-methacryloxyaceto-phenone may be prepared by similar methods.ALSO:A copolymer of ethylene with 0.01 to 10 mole per cent. of at least one substituted acetophenone of formula <FORM:0974402/C3/1> wherein R1 is H or Me, may be prepared by polymerization at -40 DEG C. to 300 DEG C. and at 1 to 3,000 atmos. in the presence of a peroxide an azo compound or a co-ordination catalyst.  The copolymers obtained may be blended with other polymers, e.g. polyethylene or polypropylene, and/or may be cross-linked by radiation of wavelength 2000 to 7000<\>rA, optionally in the presence of a polar vinylidene monomer whereby a graft polymer is obtained. The products may be formed into film, filament, tube or rod and find application in packaging potato chips, meat or bacon, as sheet for photo reproduction and as magnetic tape base.
Patent GB-809440-A (GB)
Title: Improvements in or relating to dielectrics
Inventor: HERBERT JOHN MARTIN
IPC: C04B35/468
Filed: 1955-04-27
Abstract: A conductor, or a substance convertible to a conductor on fixing in a reducing atmosphere, is mixed with the modified barium titanate (or its precursors) of Specification 809,439 and the mixture fixed in a reducing atmosphere.  The conductor ingredient may also be barium titanate, but in such event it must be free from the oxides of manganese or magnesium; have a particle size greater than 5 microns; and have been calcined at above 1200 DEG C. Part of the barium can be replaced by strontium.  In examples, iron and ferric oxide are also used as the conductor ingredient.
Patent GB-847840-A (GB)
Title: Process of manufacturing coke
Inventor: JR FREDERICK L SHEA
IPC: C10B55/00
Filed: 1957-04-15
Abstract: Coke, which is suitable for the production of graphite electrodes, and which, when crushed to a fine size, shows a needle-like structure, is produced by removing from a high boiling liquefiable coal-derived bitumen the components which readily form an insoluble phase upon heating, coking the remaining residuum at a temperature between 400 DEG C. and 500 DEG C. under conditions substantially free from temperature gradients until the material solidifies and heating the resulting solid material at a temperature between 500 DEG C. and 600 DEG C. to complete the coking. Suitable coal-derived bitumens are coal gasification tars, coke oven tars, water gas tars and pitches derived therefrom.  The insoluble phase may be removed by several methods.  In one method, a charging stock of coal tar which contains up to 25% of matter substantially insoluble therein is heated to a temperature below 400 DEG C. and filtered at between 150 DEG  and 250 DEG C.  In another method a coal tar is flash distilled at atmospheric or sub-atmospheric pressure.  In another embodiment bitumen is preheated in a pipe coil to a temperature of 400 DEG -600 DEG C., and then continuously passed to a flash distillation zone from which vapours are taken overhead and coked to form the needle-like coke.  In another form the pitch or similar material has added thereto a solvent such as a paint thinner, to reduce its viscosity and the material is subsequently filtered.  According to another method the bitumen with or without a solvent is treated to a centrifugation operation followed by recovery and coking of the comparatively solid-free fraction.  The needle-like coke when calcined may be mixed with a binder such as electrode pitch and with coke flour produced from needle-like coke or from commercially produced petroleum coke and extruded or moulded into the desired configuration, the electrodes so produced being baked at a temperature up to 1200 DEG C. The baked pieces may be subsequently graphitised at temperatures between 2500 DEG C. and 3000 DEG C.
Patent GB-1086604-A (GB)
Title: Dry sausage casing
Inventor: TURBAK ALBIN FRANK
IPC: B29C48/10
Filed: 1966-03-21
Abstract: A synthetic tubular sausage casing, for example of regenerated cellulose, for dry sausage, such as salami and cervelat, is coated on the interior surface with 0.1-5% soluble protein having a molecular weight above 10,000 and an isoelectric point in the range pH2-pH6, such as gelatin or egg albumen, and sufficient liquid smoke in the range 0.05-5% wt. of the casing to substantially insolubilize the protein after drying, whereby the casing will shrink with and adhere to the surface of the dry sausage therein.  An insoluble non-toxic powder may be added in small amount to function as an anti-blocking agent.  Suitable powders include wood flour, starch, walnut shell flour, chalk, talc, mica, graphite, calcium phosphate, and calcium carbonate.ALSO:A synthetic tubular sausage casing, for example of regenerated cellulose, for dry sausage, such as salami and cervelat, is coated on the interior surface with 0.1-5% soluble protein having a molecular weight above 10,000 and an iso-electric point in the range pH2-pH6, such as gelatin or egg albumen, and sufficient liquid smoke in the range 0.05-5% wt. of the casing to substantially insolubilise the protein after drying, whereby the casing will shrink with and adhere to the surface of the dry sausage therein.  An insoluble non toxic powder may be added in small amount to function as an anti-blocking agent.  Suitable powders include wood flour, starch, walnut shell flour, chalk, talc, mica, graphite, calcium phosphate, and calcium carbonate.
Patent GB-516759-A (GB)
Title: Improvements in mountings for eyeglasses
IPC: G02C5/12
Filed: 1939-04-24
Abstract: 516,759. Spectacles. TENNANT, W. J. (American Optical Co.). April 24, 1939, No. 12321. [Class 97 (i)] The connection between the lens rim and a nose-pad 6 comprises a stud' projecting from a side of one of the members, e.g., the pad. and having a main body part 7, which may be of substantially oblong cross-section, engaging loosely a correspondingly-shaped hole 16 in the other part, e.g., the supporting arm 5 attached'to the lens rim, and a reduced extension 8 adapted to receive means for securing the pad to the arm, such as a washer 19 over which the end 21 of the stud is headed, said means being slightly spaced from the main body part 7 of the stud so as to provide, in conjuction with the loose fit of the stud in the hole 16, a predetermined amount of play for the pad. The stud is rigidly attached to the metal plate 11 of the pad, which is encased in non-metallic material 10.
Patent GB-256686-A (GB)
Title: A powdered fuel or gas burner
IPC: F23D1/00
Filed: 1925-05-12
Abstract: 256,686. Mond, A. L., (Dyer, H. T.). May 12, 1925. Pulverulent-fuel and blowpipe burners. - Converging sheets of pulverulent fuel or gas discharged from chambers 21 through a throat 31 into the combustion chamber 32 of a furnace are broken up with turbulence by the impingement thereon of air currents supplied through passages 42, 43, 44 formed in and around an air register 41 and containing vanes 50, 49 which are arranged at various angles. The vanes 50 may in some cases be pivotally mounted in the passages so as to be angularly adjustable. The air register 41 consists of two curved sides 45, 46 supporting a triangular member 48 by the vanes 49 and is adjustably mounted on screws carried by a flange 24 by which the chambers 21 are bolted to the furnace front 33. The fuel chambers are provided with several fuel inlet pipes 22.
Patent GB-251774-A (GB)
Title: Improvements relating to metal turning tools
IPC: B23B5/00
Filed: 1925-05-12
Abstract: 251,774. Ord, L. C. May 12, 1925. Turning; tools.-Tools of the kind having a number of cutting-edges mounted on a slide movable transversely to the rotating work comprise a number of successive cutting-edges d of progressively increasing height arranged obliquely on a slide c which is fed under the work b so that the slide and the surface of the work being operated upon move in the same direction but at different speeds. The cutting-edges are spaced so that one or more is in action at any instant. The inclination of the cutting-edges is such that cuttings are deflected away from any shoulders on the work, which in the example described is a rolling-stock axle. The cutting-edges may be discontinuous and may be in line or staggered, and may be formed integral with a block mounted on the slide c, or formed of separate strips brazed on the block, or some may be integral or brazed and others secured in any other manner with adjusting means if desired.
Patent GB-678717-A (GB)
Title: An improved method for forming printed circuits and printed circuit elements
Inventor: HUGGINS BENJAMIN FREDERICK
IPC: H05K3/10
Filed: 1949-05-10
Abstract: Metallic patterns are applied to non-metallic supports by covering the supports with metal powder, applying heat and pressure to the covered support by means of a heated die having a surface figured to correspond to the desired pattern, and removing any unpressed powder. The supports may be coated with a heat-hardenable or age-hardenable adhesive before the application of the metallic powder, or the adhesive may be incorporated in the support.  The support may consist of laminated fabric or paper products, various synthetic resins, ceramics or glass, and the metallic coating may be copper, silver, gold, tin, aluminium, zinc or an alloy of any of these metals.
Patent GB-587358-A (GB)
Title: Improvements in and connected with glass melting tank furnaces
IPC: C03B5/183
Filed: 1944-06-30
Abstract: 587,358. Glass melting furnaces. SMITH, W. J. June 30, 1944, No. 12457. Convention date; July 10, 1943. [Class 51 (ii)] [Also in Group XIII] In a recuperative or regenerative glass melting tank furnace, air cooling ducts are arranged in contact with the outer surface of the tank bottom or walls and have their discharge ends connected to a recuperator or regenerator in which the air is further heated before entering the tank with gas for combustion. As shown in Figs. 1, 3 and 5 a fan 19 delivers air through conduits 17 at the bottom of the tank 10 and enters the lower end of a recuperator 13 provided with tubular elements 22 for the passage of waste gases. The air is caused to take a tortuous course through the recuperator by means of baffles 33 formed by providing certain of the tubular elements with plain flanges 23 while others are provided with flanges having ports 23<1>, Fig. 5. The air supplied through the conduits 17 is controlled by valves 31. Air enters the furnace by a passage 30 with gas from a port 30<1>. The air from the ducts may be led to a chamber beneath the recuperator structure before passing to the air space recuperator. Waste gases pass from the tubes of the recuperator into compartments 25, 26 separated by a partition 24, Fig. 3, and thence through dampercontrolled passages 27 to a stack 28 having a partition 28<1>. The recuperator air space may be divided by a central vertical partition 34 extending into the passage 30 and also the flue 21 and waste gas space at the top of the recuperator may be divided by a central vertical partition 35. The glass tank may be semi circular in cross section. When applied to a reversible regenerative furnace the conduits 17 connect through a reversing valve with each regenerator alternately.
Patent GB-125193-A (GB)
IPC: A44B1/34
Abstract: 125,193. Ryner, A. Sept. 23, 1918. Buttons. - A button comprises a hollow head a, shank b, and. flange c of indiarubber or like flexible material, with a covering d cemented or vulcanized thereto. The flange c may be stuck directly to the garment c or to a resilient disk f previously attached to the garment. Fig. 3 shows a flexible button, the shank b of which is provided with. a knob g which may be forced through the disk f of similar material to the button attached to the garment c.
Patent GB-141933-A (GB)
Title: Means for preventing the unauthorised use of internal combustion engines or of vehicles driven thereby
IPC: B60R25/042
Filed: 1919-05-19
Abstract: 141,933. Ingram, L. May 19, 1919. Filters.-Unauthorized use of internal-combustion engines or of vehicles driven thereby is prevented by locking the petrol filter. The filter is in two parts a, b secured bv a bolt d, and contains a gauze sheet between the inlet f and outlet h. The inlet f has a valve seating n adapted to be closed by a valve m mounted in a plug j, which, together with a second plug k, is screwed into a bore i in line with the seating n. To ensure accurate seating of the valve, it may be mounted on a spherical head o, and a washer around a neck p thereon may bear against the face q and prevent leakage when petrol is flowing. Each of the plugs has a slot r to receive a key. To lock the filter, the key is inserted in k which is screwed up to touch j, and brings the slots in register; the key is then inserted in j and both plugs advanced until the valve bears on the seating. The plug k is then withdrawn until the end is flush with the filter casing and the slots across one another.
Patent GB-528070-A (GB)
Title: Improvements in and relating to frequency-selective thermionicvalve circuits
IPC: H03H11/04
Filed: 1939-04-26
Abstract: 528,070. Valve amplifying circuits. TANNER, R. H. April 26, 1939, No. 12553. [Class 40 (v)] A transmission channel for transmitting a range of frequencies has connected in shunt therewith a network to reduce the amplitude of transmitted oscillations over a part of the operating range only, comprises the anode-cathode path of a valve provided with negative feedback. Fig. 1 shows a valve 13 arranged as an element in the output impedance of amplifier 7, and to have negative feedback from potentiometer 14, 15 so that low frequencies are attenuated and high frequencies passed since condenser 16 prevents feedback at these frequencies. The time constant of the anode decoupling condenser 12 and resistance 10 are preferably made equal to that of the grid condenser 16 and leak resistance 15. A low pass filter may be obtained by connecting inductances in parallel with the load resistance and the grid resistance and providing a condenser in series with the feedback resistance between anode and grid, Fig. 2 (not shown). The time constant of the inductance and resistance in the anode circuit is preferably equal to that of the corresponding elements in the grid circuit and equal to the time constant of the resistance capacity combination in the feedback path. Acceptor circuits 24, 25 and 26, 27, Fig. 4, may be associated with the anode and grid circuits, respectively, to obtain a band-pass filter or rejector circuits may be used to obtain a band-rejector effect, Fig. 5 (not shown). Fig. 3 shows a variable attenuation equalizer in which attenuation of high frequencies, effected by condenser 22, is controlled by the bias applied to the valve 13 which preferably has a variable-mu characteristic. Fig. 6 shows the application of the invention to frequency band division, valve 39 absorbing from the line 32 the frequency to which circuit 37, 38 is tuned. This frequency appears at terminal 43 since circuit 42 is tuned to the same frequency.
Patent GB-252198-A (GB)
Title: Dry packing insulation against heat exchange with protective mantle
IPC: F16L59/04
Filed: 1926-05-17
Abstract: 252,198. Bohle, F., and Schr÷der, R. May 16, 1925, [Convention date]. Non-conducting coverings for heat.-Dry insulating material, such as magnesia, kieselguhr, soot, or dust from burning gases, is packed into a thin-walled metal or other container surrounding the part to be insulated. In the application to a pipe 1, divided rings 2 of low conductivity are provided to support a sheet metal container 3 having an opening 4 on its upper side to receive the packing material. The opening 4 is then covered by a plate 5. In the case of vertical pipes, Fig. 5, the adjacent sections 3 are secured by members 7, and an opening 4 may be provided for the escape of moisture, and may be closed by a removable cover 5.
Patent GB-1173983-A (GB)
Title: Direct Positive Photographic Materials
IPC: C07D235/02
Filed: 1967-03-17
Abstract: 1,173,983. Cycloheptimidazolium compounds. SANKYO CO. Ltd., and KONISHIROKU PHOTO INDUSTRY CO. Ltd. 17 March, 1967 [19 March, 1966], No. 12583/67. Heading C2C. [Also in Division G2] Compounds of the formula wherein R 1  is alkyl, aryl or aralkyl, R 2  is aryl or aralkyl, R 3  is hydrogen, halogen, alkyl or phenyl and X is halogen are prepared by reacting a compound of formula with a compound of formula X.COOR<SP>1</SP>, wherein R<SP>1</SP> is alkyl. Compounds wherein X is other than halogen, e.g. hydrogen sulphate or methyl sulphate are obtained by treating the halogenide with an appropriate acid. The substituents on the aryl and aralkyl groups may be chlorine, methyl, methoxy or nitro.
Patent GB-476787-A (GB)
Title: Ventilating means for motor driven vehicles
IPC: B60H1/24
Filed: 1937-05-03
Abstract: 476,787. Ventilating motor vehicles. SCOTT, F. May 3, 1937, No. 12599. [Class 137] Closed automobile bodies, aircraft cabins, or cruiser cabins are ventilated by passing the exhaust gases from the engine exhaust pipe 5 through a Venturi tube 1 which, through a pipe 7 leading to the narrowest part 3, extracts air from the enclosure 161 through branches 17, pipe 12, air silencer 10, and flexible connection 8 to the tube 1. The air entering the silencer passes to one end through tube 18 and through perforations in partitions 22 to the inlet of tube 19 which terminates in a compartment 20 housing a non-return flap valve 21. Fresh air is admitted to the body through rainproof louvres or the like, or a duct may lead from the rear of the radiator, the entering air being conditioned. Specification 326,319, [Class 137], is referred to.
Patent GB-1027540-A (GB)
Title: Process for the preparation of dithiooxamide
IPC: C07C/
Filed: 1965-03-25
Abstract: Dithiooxamide is prepared by reacting dicyanogen with hydrogen sulphide in an essentially non-aqueous medium in the presence of a basic catalyst at from - 20 DEG  to 100 DEG  C.  Suitable catalysts are alkali and alkaline earth metal alcoholates and hydroxides, alkali metal cyanides, ammonia and C1- 30 amines.  Suitable media are aliphatic and aromatic hydrocarbons, alcohols, ethers, ketones, halohydrocarbons and esters.
Patent GB-1351422-A (GB)
Title: Water cooling system of a vacuum arc furnace
IPC: F27D9/00
Filed: 1972-03-17
Abstract: 1351422 Casting processes; cooling moulds S M BEIZEROV 17 March 1972 [17 March 1971] 12749/72 Heading B3F [Also in Divisions F3 and H5] A vacuum arc melting furnace used for melting titanium or titanium alloys comprises water-jacketed electrode chamber 10, mould 3 and bottom plate 7, a water-cooled electrode holder 17 with supply pipe 16 and exit pipe 18 connecting it to the water spaces 2 and 6 of the mould and bottom plate, and a reservoir 1 above the furnace with connections 4, 8 and 12 to and connections 5, 9 and 13 from the mould 3, bottom plate 7 and electrode chamber 10. During operation the electrode 11 is melted and solidifies in the mould 3 as an ingot.
Patent GB-1174529-A (GB)
Title: Production of Sulphonated Olefins
IPC: C09K23/02
Filed: 1968-03-18
Abstract: 1,174,529. Sulphonated olefins. COLGATEPALMOLIVE CO. 18 March, 1968 [22 March, 1967], No. 12928/68. Heading C2C. Sulphonated olefins are prepared by extracting an acid mix, produced by reacting sulphur trioxide with an olefin of 8 to 30 carbon atoms, with aqueous sulphuric acid to produce a mixture comprising a liquid aqueous sulphuric acid phase and an organic phase containing the major proportion of the acid mix, and separating the sulphuric acid phase (which may be recycled) from the organic phase. The organic phase can be hydrolysed under acidic or alkaline conditions to produce a mixture containing alkenyl sulphonates and hydroxyalkane sulphonates. The compounds may be bleached with an oxidizing agent after the extraction.
Patent GB-1040988-A (GB)
Title: Improvements in or relating to permanent magnet electric motors
Inventor: SKELTON RONALD GEORGE
IPC: H02K23/44
Filed: 1964-03-26
Abstract: 1,040,988. Electric motors with adjustable cores. PLESSEY UK Ltd. March 26, 1965 [March 26, 1964], No. 12968/64. Heading H2A. In a D.C. motor having a cylindrical permanent field magnet, the speed is adjustable by movement of a non-uniform yoke surrounding the magnet, The yoke may be an annular ring having an air gap or other high reluctance gap, surrounding a two- or four-pole barium ferrite magnet and may be axially adjustable or rotatable relative to the magnet. The yoke may alternatively be a laminated ring with zones of differing reluctance.
Patent GB-1424167-A (GB)
Title: Cathode assembly for a travelling-wave tube
IPC: H01J23/04
Filed: 1974-03-22
Abstract: 1424167 Thermionic cathode constructions HUGHES AIRCRAFT CO 22 March 1974 [9 April 1973] 12979/74 Heading H1D To reduce heat losses in a cathode for a travelling wave tube a heat reflecting shield 40 is wound coaxially round thermionic cathode 10, the shield comprising a thin metal foil of low thermal conductivity, low emissivity; with a polished heat reflecting surface and projections 45 which extend from the foil surface to separate adjacent windings. The cathode includes a Mo emitter 11, a heater 20 and two heat shields 40, 50 around the cathode and heater respectively. The foil is of Re, Nb, Ta, Mo or W and the shields comprise about 40 turns. The projections are either pressed in the foil or beads welded to the foil.
Patent GB-197831-A (GB)
Title: Improvements in devices for stopping the flies or swifts of reeling machines
IPC: B65H54/74
Filed: 1922-05-09
Abstract: 197,831. Walkington, S. May 9, 1922. Reeling - machines; stop - apparatus, non- automatic. - In apparatus for braking the swifts of a reeling-machine, of the kind described in Specification 127,443, a footboard K is depressed and a shore-lever 7 thereby released from the position shown in Fig. 1. Under the action of a spring 8, the lever 7 assumes an inclined position, Fig. 2, and a lever C rises under the action of a spring E and causes the brake-pad G to grip the pulley H. The pulley H is released and the mechanism re-set by pulling down the handle-horns 1, which are spaced along a bar 2 attached to the bobbin-hopper L.
Patent GB-1167660-A (GB)
Title: Improvements in or relating to Containers for Packaging
Inventor: O'RIORDAIN DIARMUID
IPC: B65D8/08
Filed: 1968-03-18
Abstract: 1,167,660. Boxes. D. O'RIORDAIN. 18 March, 1968 [21 March, 1967], No. 13045/68. Heading B8P. A box 1 of expanded polystyrene, has inserts 7, 7a, e.g. of wood or hard plastics, and which may be glued in position to protect the box against steel straps 13, 13a after securing a lid 2. The inserts 7, 7a may extend along the whole of the top and bottom edges.