baber/WOPTO huggingface dataset:
Patent GB-1503384-A (GB)
Title: Method of producing high brightness corrosion-resistant finish on the surface of aluminium and its alloys
IPC: B05D7/14
Filed: 1975-04-23
Abstract: 1503384 Coated aluminium REYNOEDS METALS CO 23 April 1975 [23 April 1974] 16895/75 Heading B2E [Also in Division C3] An article of aluminium or an aluminium alloy has adhered directly on a bright metal surface thereof a substantially transparent resinous coating composition consisting essentially of (a) between 10% and 40% by weight of a terpolymer of vinyl chloride vinyl acetate and maleic acid and (b) between 50% and 90% by weight of a lower alkyl methacrylate ester polymer having up to 6 carbon-atoms in the alkyl group, the coated article exhibiting a spectral reflectance of at least 95%. A metal surface may first be immersed in an acid brightening bath and rinsed with distilled water followed by immersion in an acid desmutting bath, rinsed with distilled water and dried at 250-400‹F. The terpolymer employed is preferably a copolymer of vinyl chloride and vinyl acetate containing 85-88% by weight of vinyl chloride and 11-14% by weight of vinyl acetate and containing 0.7- 1.2% of maleic acid. The methacrylate ester polymer component is either a homopolymer or methyl methacrylate or a copolymer thereof with minor proportions of higher alkyl methacrylate esters, such as those containing 2-6 carbon atoms in the higher alkyl group. The coating may be applied by spraying. In the example a vehicle bumper made of aluminium alloy was washed in a 10% by weight solution of a detergent, bright dipped in a solution of 1% sulphuric acid, 3% nitric acid, 80% phosphoric acid and the balance of distilled water at 200‹F for 3 minutes and rinsed with distilled water. The bumper was then desmutted by dipping in a 15% solution of nitric acid in distilled water for 1 minute (rinsed with distilled water and dryed at 300‹F in water. A 20% by weight solution of a terpolymer of 86% vinyl chloride, 13% vinylacetate and 1% maleic acid in methylethyl ketone was mixed with a 20% solution of methylmethacrylate polymer in a 20:80 by weight mixture of ethanol and toluene. The viscosity was adjusted to 150 per second as measured in a No. 4 Forward cup at 80‹F by addition of diacetone alcohol and adjusted to 20% solids content before spraying onto the bumper surface. The coating was baked and cured at 250‹F for 30 minutes.
Patent GB-915742-A (GB)
Title: Improvements in or relating to methods of making sealed joints
Inventor: BRIANT JOHN HENRY
IPC: F16L58/10
Filed: 1958-05-27
Abstract: 915,742. Laminates; coated fabrics. FARMILOE Ltd., T. & W. March 25, 1959 [May 27, 1958], No. 16913/58. Class 140. [Also in Group X and XXVI] A joint between two spaced parts such as the joint between a window pane 7, Fig. 3, and its frame 8 is made by a sealing gasket 11 consisting of a cured layer 4, Fig. 2, of a plastic, e.g. heat-curable synthetic rubber or natural rubber sandwiched between two uncured pressuresensitive tacky layers 5, 6 of the same or different plastic which uncured layers are soft enough to flow when subjected to pressure as for example exerted by the glazing strip 9 on the strip 11 and pane 7 against the frame 8. The exposed surfaces of the uncured layers are covered by a non-tacky material such as a mineral powder, which is removed prior to use in making the joint. Such non-tacky material may be adhered to the tacky surface by a snap solution adhesive which can be removed by a solvent. The layers 5, 6 may be uncured rubbery co-polymer of an iso-olefine with minor proportion of a di-olefine and the layers 4 may be the cured form of the layers 5, 6.
Patent GB-497357-A (GB)
Title: Improvements in chemical and/or heat recovery apparatus for treating waste liquor
IPC: D21C11/12
Filed: 1937-06-17
Abstract: Apparatus for treating waste liquors containing combustible matters such as the residual liquors in the sulphate, soda or sulphite process of manufacturing paper pulp comprises a furnace chamber into which residual liquor is introduced in the form of a spray to be dried and burnt, a separate boiler chamber containing a bank of vertical steam generating tubes across which hot gases pass transversely <PICT:0497357/III/1> from the furnace chamber and a water-cooled throat in the path of the gases between the furnace and boiler chambers.  As shown in Fig. 1, the furnace chamber is of rectangular cross section and the waste liquor is sprayed into it by a nozzle 30 of the kind described in Specification 475,548, [Group XIX], dried by ascending gases and deposited on the rear wall from which it falls when dry on to the hearth 18 where it is burnt, air for combustion being supplied to the furnace through openings 39 and 42.  The walls of the furnace are lined with vertical water tubes connected up to the boiler drums and are studded at their lower and upper parts and coated with refractory material as shown in Figs. 6 and 5 respectively.  The furnace gases pass through the water cooled throat 11 the entrance of which is screened by tubes and enter the boiler chamber where they pass over banks of vertical tubes 62 connected to an upper drum 60 and two lower drums 61 and also U-shape superheater tubes 68.  Residues containing sodium carbonate and sodium sulphate are deposited in a hopper 75 beneath the boiler having discharge pipes 80 and partitions 76.  Means are provided in the walls of the boiler <PICT:0497357/III/2> <PICT:0497357/III/3> chamber for removing deposits from the tubes.  The gases leaving the boiler chamber pass through a tubular air heater 13 from which air is supplied to the furnace chamber.  Fused residues are tapped from the hearth 18 through a spout 45.  Specification 475,416 also is referred to.
Patent GB-1465463-A (GB)
Title: Apparatus to control top pressure in a blast furnace and to clean and cool gases emanating therefrom
IPC: F27B1/18
Filed: 1975-04-24
Abstract: 1465463 Gas cleaning apparatus AIR POLLUTION INDUSTRIES INC 24 April 1975 [10 July 1974] 16984/75 Heading B1R An apparatus for cleaning, blast furnace gases and controlling the top pressure therein comprises a tower 21 divided by a concave partition or septum 22 into a lower compartment 23 and an upper compartment 24, a gas entry duct 32 to compartment 23, a gas exit duct 51 from compartment 24, a plurality of venturi scrubbers 38 each having an inlet 39 communicating via valve 42 with the upper portion of compartment 23 and an outlet end 41 communicating via valve 42 with the lower end of compartment 24, a water feed conduit 44 to the venturi scrubbers, a water separator 50 in the upper compartment 24 and a conduit 49 located near the bottom of compartment 24 for removing water separated therein. The lower compartment 23 may be provided with a secondary separator 25, cooling sprays 26, a cooling element 28, conical baffle 29 and annular discharge trough 29. The gases entering the tower are preferably prewashed in a venturi scrubber 1. Each venturi scrubber 38 (Fig. 4) has a venturi section lined with a fused alumina collar 46, flanged connections 47 between gate valves 40 and 42 and water inlets 43, fed from conduit 44, some of which may be disposed radially and others tangentially to the passageway through the scrubber.
Patent GB-1124878-A (GB)
Title: Activated carbon tablet
IPC: C01B32/384
Filed: 1967-04-13
Abstract: A tablet consists essentially of finely-divided activated carbon and 20-60% wt. of an aliphatic hydrocarbon sulphonate detergent as a binder.  Preferably the sodium sulphonate is used and the hydrocarbon group preferably contains 8-18 carbon atoms. Typically, carbon will constitute 50-70% by weight of the tablet.  A hydrocarbon or chlorinated hydrocarbon, e.g. perchloroethylene, solvent may be included in the tablet. Dry-cleaning solvents may be included.  The tablets, which may be of any shape, are formed by conventional techniques using a press or briquetting machine with pressures up to 20,000 p.s.i.  The weight of a tablet can vary between 0.002 to 1 pound weight.  The tablet may be coated, if desired, with a filter aid such as diatomaceous earth, bound by the same adhesive as used for the carbon particles.  The tablets may be used to decolorize dirty dry-cleaning solvents.  Modifying agents such as diphenyl ether sulphonates, glyceryl esters of higher fatty acids or alkylphenol-ethylene oxide condensates may be added to the binder as detergent diluents. Comparison tablets incorporating binders other than aliphatic hydrocarbon sulphonates are described.
Patent GB-254876-A (GB)
Title: Improvements in door closers and checks
IPC: E05F3/06
Filed: 1925-07-02
Abstract: 254,876. Nettlefold & Sons, Ltd., and Ely, C. A,. July 2, 1925. Operating doors by springs; checks. - In a device for operating and controlling doors which open in either direction the arm which moves the spindle to tension the coiled spring and move the piston check is arranged to be slidably mounted upon the upper end of the spindle and so as to be moved axially thereon as the door swings open, the arrangement being such that the arm is lifted as the door swings in one direction and lowered below the level of the transom as the door swings back. The casing containing the check cylinder d and spring barrel a is attached to the door, and the operating spindle e is connected through an operating arm h with a bracket r<2> attached to the transom. The spindle e is arranged to tension the coiled spring l, either through a sleeve g with a tooth g<3> engaging a projection on a sleeve o engaging the lower end of the spring, or, when the door is opened in the other direction, by the engagement of the edge of the arm h with a shoulder j<4> of a sleeve j acting against the upper end of the spring. The member j is formed with inclined surfaces j<3> with which engage rollers m, n secured to the arm h. Reverse abutments a<2>, a<3> are provided for the member j<2> and lower end of the drum o respectively. When the door is opened in one direction, the spindle e is rotated and the rollers travel up the inclined surfaces so that the arm h is raised, the spring being tensioned through the members h, o. When the door is closed the arm has been returned to its lowered position so that, when it is opened in the other direction, the arm h engages the shoulder j<4> and tensions the closing spring through the sleeve j. During this opening movement the arm h is not raised and passes beneath the transom.
Patent GB-1093797-A (GB)
Title: Improvements in or relating to a blind locked spindle rivet and method for applying the same
Inventor: KETCHUM MILO
IPC: F16B19/10
Filed: 1965-04-22
Abstract: 1,093,797. Blind riveting. TEXTRON INDUSTRIES Inc., April 22, 1965, No. 17015/65. Heading B3U. A tubular blind rivet 1 is set by a break neck mandrel having a series of break neck grooves 12 on a part thereof which is at least partly within the rivet head when the rivet is set and the method of setting the rivet comprises the steps of exerting pressure on the rivet head by a member 31 which also radially confines the head and setting the rivet by pulling the tail 6 of the stem into the rivet shank, and by means of an anvil 33 pressing a groove 21 into the rivet head so that material is forced to flow radially inwardly into the break neck groove adjacent the top of the rivet head so as to exert pressure on the sides of the break neck groove for weakening the stem at the groove and for locking the groove to the head. A neoprene washer 3 is placed in a recess under the head, and further sealing material 19 is placed between the workpieces 18.
Patent GB-913613-A (GB)
Title: Improvements in or relating to high frequency heating equipment
Inventor: TIBBS CHRISTOPHER EVAN MUNDELL
IPC: H05K9/00
Filed: 1960-05-13
Abstract: 913,613. Valve oscillating circuits. RADYNE Ltd. May 9, 1961 [May 13, 1960], No. 17037/60. Class 40 (6). A generator for radio-frequency heating comprises a pair of oscillator valves operating in push-pull and having a cavity resonator as tank circuit, providing an output for an incompletely screened work circuit. The arrangement is stated to provide a stable oscillator giving a reduced output at harmonic frequencies. The tank circuit comprises a cavity resonator having a cylindrical wall 12, Fig. 1, and flat end-plates 14, 16, there being an inner capacity unit comprising concentric cylinders 18, 20 alternate ones of which are connected to opposite endplates. To each end plate is affixed a screened compartment 22 housing one of the oscillator valves 24, the anodes of which are connected to taps 30, 32 on the innermost cylinders 20, 18 respectively, adjustment of which enables the oscillator to be balanced. The grids are connected via blocking capacitors to coupling loops 36 in the cavity, and via R.F. chokes 38 to tungsten filament lamps 40, the resistance of which increases with increase in grid current. The anodes of the valves are fed via R.F. chokes 26 and the anode feed circuits may include overload trips; blowers 48 are provided. The work electrode 46 is connected via series variable capacitor 44 to a small coupling loop 42 in the cavity. In another embodiment, which is a modification of the arrangement disclosed in Specification 877,014, the cavity resonator comprises cylindrical wall 12, Fig. 2, and end-plates 14, 16 to which are attached inner cylindrical members 50, 51 respectively. Members 50, 51 form with an enclosed cylindrical member 52 a pair of capacitors seriesconnected across the cavity. The push-pull oscillator valves 53, 54 are located at either end of the inner cylinder 52, their anode terminals 55 being connected to this cylinder while the grid terminals 56 are connected via blocking capacitors to the end-plates 14, 16 respectively. One filament terminal 58 of each valve is coupled via a blocking capacitor to a corresponding pick-up loop 60 providing the driving voltage. Output is taken via a coupling loop 62.
Patent GB-1152278-A (GB)
Title: Improvements in or relating to Mixers and Frequency Changers
Inventor: DUCE VITTORIO DEL
IPC: H03D7/12
Filed: 1967-04-13
Abstract: 1,152,278. Heterodyne mixers. MARCONI CO. Ltd. 15 Feb., 1968 [13 April, 1967], No. 17038/67. Heading H3T. A heterodyne mixer has a tetrode FET with input frequencies applied to its gate and source, respectively, and having its second gate tied to earth, the output signal being taken off by the drain circuit. In Fig. 2, the source S is fed by local oscillations from LO in parallel with the D.C. path containing resistances R3, R33. The input signal is applied to the gate G1 and the resultant output signal is taken off the drain D. The second gate G2 is connected to earth and acts as an electrostatic screen.
Patent GB-1472193-A (GB)
Title: Sulphur dioxide removal
IPC: C02F1/66
Filed: 1974-04-18
Abstract: 1472193 Sulphur dioxide removal ENVIROTECH CORP 18 April 1974 [23 April 1973] 17086/74 Heading C1A In a process for removing SO 2  from SO 2  and O 2  bearing gas streams, the gas is scrubbed in scrubber 13 with aqueous alkali metal or ammonium hydroxide to convert at least part of its SO 2  content to sulphite and sulphate; the at least partially spent liquor is introduced to a vessel 41 where it is mixed with soluble calcium oxide or hydroxide in the presence of finely divided CaSO 3  and CaSO 4  crystals, forming additional insoluble CaSO 3  and CaSO 4  and regenerating the aqueous scrubbing liquid by formation of alkali metal or ammonium hydroxide; the CaSO 3  and CaSO 4  are separated in vessel 49, and at least a portion of the CaSO 3  and CaSO 4  is returned via line 61 to vessel 41; the separated scrubbing liquid is mixed with carbonate ions in vessel 65 to precipitate additional calcium ions as CaCO 3 ; the scrubbing liquid is separated from the CaCO 3  and recycled to vessel 75 and hence to the scrubbing zone via line 35.
Patent GB-1285230-A (GB)
Title: Production of barium ferrites
IPC: H01F1/11
Filed: 1970-04-10
Abstract: 1285230 Barium ferrite; glass compositions STACKPOLE CARBON CO 10 April 1970 17089/70 Headings C1A and C1M Barium ferrite of magnetoplumbite structure is formed by forming a homogeneous melt of B 2 O 3 , BaO, and Fe 2 O 3  in the area ABCD of Fig. 1, quenching the melt to a homogeneous glass substantially free from undissolved and crystalline materials, and then heating the glass to nucleate and crystallize the desired barium ferrite in a borate rich matrix. The ferrite may be separated from the matrix, e.g. by treating the crystallization product with a weak acid. The acid exemplified is acetic. The melt may be chosen to lie in the region EBCF of the figure, but the best results are obtained in the region AEFD. The glass may be heated between 500‹ and 900‹ C. The melt may be quenched rapidly by passing it between metallic rollers so as to solidify the melt to a ribbon about 0À1 mm. thick. A composition having the molar proportions 26À5% B 2 O 3 ; 40À5% BaO; and 33% Fe 2 O 3  is discussed.
Patent GB-292109-A (GB)
Title: Sectional iron members for use in connection with metal structures and the like
IPC: E04C3/06
Filed: 1928-06-13
Abstract: 292,109. Baude, J. June 13, 1927, [Convention date]. Drawings to Specification. Metal tubes.-For light structures built of section bars, the solid bars are replaced by hollow bars of the same configuration of section but of lighter weight for the same strength. The hollow bars are formed by deformation of hollow circular bars. Various sections are illustrated. Reference has been directed by the Comptroller to Specification 17013/06.
Patent GB-634521-A (GB)
Title: Improvements in and relating to wax applicators
IPC: A47L13/312
Filed: 1947-06-30
Abstract: 634,521. Polishing floors. BECKER, W. June 30, 1947, No: 17178. [A Specification was laid open to inspection under Sect. 91 of the Acts, Jan. 10, 1948.] [Class 138 (i)] A wax applicator comprises a handle 11, Fig. 2, having a wax applying means 12 at one end and supporting means 13 for a wax container 14 which by means of an operating element 18 can be selectively tilted from the other end of the handle. By tilting the container, wax is poured on to a floor which is then polished by the member 12. The container 14 is pivoted to the member 13 and to the operating arm 18 either non- removably by means of projecting bosses on the container or removably by using spring-loaded pins entering recesses in the container. A perforated wax distributer 16 is screwed to the spout 15 of the container and movement of the operating arm 18 is limited by a slot 22 engaging a pin 21. The container is locked in the upright position by spring fingers 24, 25, on the arm 18 engaging a pin 26. In a modification, Fig. 10, the container 74 is removably mounted on a pivoted member 73 by lugs 81, 82 which engage under a bottom lip of the container 74, the top being held by a winged bolt 80. The container has a removable spout 96 and is tilted anti-clockwise. In a modification of this arrangement the member 73 has a projecting arm to which the operating rod 87 is connected so that the container tilts clockwise. The polishing pad in both constructions comprises lambswool clamped between wooden members 92, 93. In an alternative form, Figs. 6, 7, in which the handle is rotated to tilt the container, the handle 11a is rotatably connected to the wax-applying means 12a by a member 51, a flange 52 of which is held between a washer 56 and a dished flange. 54 of a member 55 which carries the member 12a. A spring-loaded lever 61 is pivoted in the member 55 and releasably engages a slot in the member 51, a foot-operated arm 62 releasing the lever. The container 14<SP>1</SP>a, Fig. 9, is clipped to the handle by means of a two-pronged clip 67 engaging grooves 66 on each side of the container and a clip 70 engaging the opposite corner. Clips 67, 70 are bolted to the handle 11a.
Patent GB-1472667-A (GB)
Title: Nucleosidic antibiotic and derivatives thereof
IPC: A61P31/04
Filed: 1975-04-25
Abstract: 1472667 1-Substituted 5-methyl-5-azauracils UPJOHN CO 25 April 1975 [20 May 1974] 17206/75 Headings C2C and C2P Novel 1-substituted 5-methyl-5-azauracils of the general formula wherein each of R and R<SP>1</SP> is a hydrogen atom, or each of R and R<SP>1</SP> is a C 2-18  hydrocarboncarboxylic acyl group, optionally substituted by halo, nitro, hydroxy, amino, cyano or thiocyanato, or C 2-8  alkoxycarbonyl, or one of R and R<SP>1</SP> is hydrogen and the other is phosphono or optionally substituted hydrocarbon-carboxylic acyl or alkoxycarbonyl as defined above, are prepared (a) when each of R and R<SP>1</SP> is a hydrogen atom, by cultivating Streptomyces platensis var. clarensis, having the identifying features of NRRL 8035, in an aqueous nutrient medium containing C and N sources under submerged aerobic conditions until substantial antibiotic activity is imparted to the medium; (b) when neither R nor R<SP>1</SP> is a phosphono group and at least one of them is other than hydrogen, by acylation of the product of (a); (c) when R is hydrogen and R<SP>1</SP> is a phosphono group, by phosphorylation of the product of (a); and (d) when R is a phosphono or acyl group and R<SP>1</SP> is a hydrogen atom, by phosphorylation or acylation of the 51-trityl derivative of the product of (a) and removal of the trityl group by mild acid hydrolysis. Antibacterial compositions comprise, as active ingredient, a 1-substituted 5-methyl-5-azauracil of the above general formula, together with a pharmaceutically acceptable carrier.
Patent GB-579194-A (GB)
Title: Improvements in or relating to signal communication systems
IPC: H04L9/38
Filed: 1942-12-03
Abstract: 579,194. Secret transmission. LYWOOD, O. G. W. G., SMITH, E. W., and LEMMON, A. P. Dec. 3, 1942, No. 17242. [Class 40 (iv)] Successive passages of a message are recorded in turn on separate record elements or sets of elements and reproduction is effected in turn from the elements or sets thereof in jumbled sequence of shorter passages, the sequences being variable. In the arrangement shown in Fig. 1, the first passage is recorded simultaneously by heads R1 on tapes or wires 2, 3 driven through a clutch from shaft 1. At the end of the passage, the driving mechanism is de-clutched from wires 2, 3 and clutched to wires 4, 5 for recording by heads R2, the input and output being simultaneously switched from R1 to R2, and from one set of reproducing heads T to the other. The clutch also puts cam-shafts 7, 8 into driving connection with shaft 1 so that reproducing heads T are traversed over different portions of the stationary record wires 2, 3, the sequence being determined by the angular positions of cams 25 on the shafts 7, 8, their positions being adjustable by dog clutches. The cams may effect forward or backward movement of the reproducing heads. When the next passage has been recorded on wires 4, 5, they are de-clutched and reproduction is effected therefrom during the recording of the next passage on wires 2, 3, and so on. Wipeout magnets are 'operated at the end of reproduction of each passage. The sequences may be determined electrically as in a modified recording system shown in Fig. 3. In this system, the successive passages are recorded on rollers 23, 24 which each carry 6 bands of recording material, recorded in turn by heads R1-R6 and R17-R22 under control of distributers IR1, IR2 which rotate at one-sixth of the speed of the rollers. Reproduction is effected by heads T1-T6 and T7-T12 connected to contacts on drums TR1, TR2 rotating with distributers OR1, OR2 and having provision for changing the connections be - tween the drums and distributers. A switch DP operated by a cam controls the input and output connections. Transmission may be by line or wireless and known synchronizing arrangements for the transmitter and receiver are provided.