baber/WOPTO huggingface dataset:
Patent GB-734210-A (GB)
Title: Improvements relating to processes of manufacturing turbine blades from heat-resisting alloys
Inventor: HALL DOUGLAS WILSON
IPC: C22F1/10
Filed: 1952-12-09
Abstract: A method of making a turbine blade from nickel-chromium alloy comprise the following steps in the order stated or with step (2) preceding step (1): (1) partially forming a blade blank from stock material; (2) giving solution heat treatment at 1050-1200 DEG C. for 10 to 2 hours; (3) polishing the blade by electro-polishing or mechanical methods; (4) covering the blank with a protective coating; (5) heating the blank to a forging temperature of 1100-1225 DEG C. for 1 to 20 minutes; (6) forging at least the blade profile to finished size between dies; (7) heat treating for precipitation hardening at 700-800 DEG  C. for 20 to 10 hours.  The nickel-chrome alloy comprises at least 50 per cent nikel or nickel plus cobalt (cobaltt not exceeding 45 per cent of the alloy), 5 to 45 per cent chromium, and one or more of the elements molybdenum, tungsten, iron, manganese, aluminium, vanadium, titanium, niobium, silicon, carbon. Before the precipitation heat treatment (7) the blade is preferably heated to 1080-1150 DEG  C. for 30 to 5 minutes to remove internal stresses as described in Specification 674,724.  After the heat treatment the protective cotaing is removed by electro-polishing as described in Specification 670,542, [Group XXXVI].  Alternatively it may be removed by vapour or shot blasting and the blade is subsequently electro-polished.  Specifications 585,845 and 659,573, [Group XXII], also are referred to.
Patent GB-1417260-A (GB)
Title: Separation of plastics material from metal
IPC: H01B15/00
Filed: 1973-06-30
Abstract: 1417260 Removing plastic coating from metal A N FELLOWS 19 June 1974 [30 June 1973] 31256/73 Heading C3P [Also in Division C7] Vinyl chloride polymer is separated from metal coated therewith (e.g. insulated electric cable and wire (by immersing the coated metal in a solvent for vinyl chloride polymer which is inert to the metal and substantially inert to any other plastics coating material present and separating the metal from the solution or dispersion of vinyl chloride polymer obtained. The solvent may be cyclohexanone, methyl isobutyl ketone, methyl ethyl ketone, isophorone, tetrahydrofuran, dimethylformamide or dichloroethane and may be heated and continuously circulated during the immersion process. The solution or dispersion obtained may be treated to concentrate it or to recover the vinyl chloride polymer and the solvent (e.g. by spray drying, vacuum recovery, falling or rising film evaporation).
Patent GB-852926-A (GB)
Title: A method of and apparatus for forming a wrinkle design finish on sheet material
Inventor: LEDERMAN BURTON E
IPC: D21F1/44
Filed: 1958-09-30
Abstract: 852,926. Printing processes. COMMONWEALTH ENGINEERING CO. OF OHIO. Sept. 30, 1958, No. 31259/58. Class 100(2) A method of forming a wrinkle finish design on sheet material consists in applying to one face of the sheet material a wrinkle coating composition, contacting the coated sheet with a metallic design, and heating the design and the area of the sheet surrounding it to produce a wrinkle finish design which is different as contrasted with the wrinkle finish and/or colour of the surrounding area. A web is fed intermittently from a roll 1A past applicators 2 which apply a layer of a liquid forming a wrinkle finish, by spraying, flow-coating or roller-coating. The web then passes into a heating chamber 3 under infra-red lamps 4 which cause wrinkling of the layer of liquid. The web is also in contact with metal designs 5 supported on heat-insulating plates 6, and a different wrinkle finish is produced in the design areas because of the greater heat-conductivity. The web with the designs at intervals thereon is wound on to a roll 7. The lamps 4 may be above and below the web. The designs may be formed by a metal plate with raised areas, resting on a heat-insulating plate. In another form the design is imbedded in or projects above the surface of a drum over which the web passes below the lamps the drum and web feeds being synchronised. The web may be of paper which may be impregnated with latex, a vinyl film, polyethylene film, a transparent or translucent synthetic resin film which may have metallic particles embodied in it, or textile material. The insulating support may be cardboard, wood, "Masonite" (Registered Trade Mark), or, as with a metal plate with raised areas, a layer of air may be relied on. The wrinkle liquid may be an epoxy, plasticised alkyd or deoresinous wrinkle. Pigments sensitive to heat may be combined with the wrinkle finish, and the design areas will be distinguished by a different colour.
Patent GB-267225-A (GB)
Title: Improvements in feed-water heaters, condensers, and like heating or cooling apparatus
IPC: F22D1/32
Filed: 1925-12-11
Abstract: 267,225. Royles, Ltd., and Millington, W. E. W. Dec. 11, 1925. Headers. - Compartments in the header of a multi-pass tubular heat exchanger directing the flow of medium through the tubes bare formed by partitions d<1> integral with the tube plate c covered by a thin plate f held in place partly by pressure and partly by screws f<1>.
Patent GB-852063-A (GB)
Title: Improved thread fault responslve means primarily for lace machines
Inventor: HOLDSWORTH SAM
IPC: D04C3/38
Filed: 1955-11-02
Abstract: 852,063. Lace machines. LACE RESEARCH ASSOCIATION. Jan. 24, 1957 [Nov. 2, 1955], No. 31303/55. Class 74 (1). Mounted on a bar extending across a sheet of threads in a textile machine (e.g. the point bar 1 or 2 of a lace net machine) is thread fault responsive means comprising a plurality of units, each unit incorporating a plurality of feelers 3, each individual to a different thread, and an opposed feeler 4 common to a plurality of threads, the feelers being connected to an electric circuit and so arranged that, when a thread breaks, its now unsupported feeler 3 is free to move relatively to the opposed feeler 4, to render the circuit operative. A visual and/or audible warning is consequently given, or the machine is stopped. The feelers 3 are hingedly supported, from a common pivot, in tricks in a block 5 of insulating material and are biased, each by a leaf spring 8 acting on a cam 3a on the feeler. Rounded thread-engaging portions 3b are provided. The feeler 4, in the form of a flap, is also hung from the block 5, has a threadengaging part 4d, and is biased by a spring 11. In their rest positions, the feelers 3, 4, constituting contacts, are located out of contact, against stops. The oscillation of the bobbin threads T and the beating-up movements of the point bar result in periodic engagement of the threads T with the feelers 3 and 4 which are thereby moved, but together and so out of contact, until a thread supporting one of the feelers 3 breaks or becomes slack. The feelers 3 may be provided for some only of the threads of the front point bar in a lace net machine, and the feelers 3 on the back point bar may be wide enough to engage the threads in shogged and unshogged positions. In a modification, the feelers may be held stationary in the path of the oscillating bobbin threads. The sheet of threads may remain in a fixed plane. In this last event, either the feelers may be displaced, periodically, into and out of engagement with the threads; or the feelers may be permanently in engagement with the threads, their contacts forming one switch in a circuit containing also a second switch operated periodically to test the circuit for continuity. The feelers, instead of constituting contacts, may carry them, or merely operate them.
Patent GB-1440576-A (GB)
Title: Actuator device for use in a gas turbine engine fuel system
IPC: F02C9/16
Filed: 1972-07-05
Abstract: 1440576 Clutch control; positive clutches; shaft couplings LUCAS INDUSTRIES Ltd 27 June 1973 [5 July 1972] 31387/72 Headings F2L F2C and F2U [Also in Division F1] A clutch device for connecting one of two input members 11, 12 to an output member 13 for use in a fuel control for a gas turbine comprises a dog clutch 22 for interconnecting input member 12 and output member 13, the member 13 being urged by a spring 23 out of engagement with member 12 and held in engagement therewith by an A.C. induction motor 24 which, when activated, pivots a member 28 through a pinion 28 engaging a sector 27 to move member 13 against spring 23 by a roller 29 in engagement therewith, a further clutch 30 interconnecting members 11 and 13 when the motor 24 is not operating and spring 23 is permitted to move member 13. The clutch 30 comprises a tooth 31 and slot 32 so that interengagement can only occur when the tooth 31 is moved past the slot in one direction. In operation the input member 12 is driven by a motor 19 through a worm 17, the motor 24 also being activated to engage dog clutch 22. On malfunction occuring the motors 19 and 24 are stopped and the output member 13 is moved towards input member 11. A lever 14 of input member 11 is manually moved to a datum position ("idle" as shown) and then back to cause tooth 31 to meet slot 32 from the correct direction and thereby engage this clutch. Only when clutch 30 is engaged fully does clutch 22 disengage completely. The manual movement of a lever 15 (connected to lever 14) can now rotate the output member 13, which is connected to an engine fuel control valve via a lever 13a. When the motor 19 rotates the output member 13 automatic control of the engine speed is maintained by a controller which receives feedback from the engine 21 and the position of lever 13a (through a transducer 33). A lever 35, ganged together with lever 15, sets the controller.
Patent GB-759048-A (GB)
Title: Improvements in or relating to vehicle wheels
Inventor: ROSS EDWARD WANNOP
IPC: B60B11/06
Filed: 1953-11-12
Abstract: 759,048. Vehicle wheels. FIRESTONE TYRE & RUBBER CO., Ltd. Nov. 11, 1954 [Nov. 12, 1953], No. 31418/53. Classes 144 (1) and 144 (2). A disc interposed between the two wheels of a twin wheel is of such a diameter as to extend beyond the greatest section width of the tyres 6 and to remain clear of the road surface on maximum tyre deflection under ordinary operating conditions and has side flanges 8 which lie near the wheel rim's periphery so as to prevent material entering through the hand holes 9 into the space between the tyres 6. The disc 5, is provided with a T-shaped flange 7 around its periphery and may be provided with cooling louvres, Fig. 2 (not shown).
Patent GB-867470-A (GB)
Title: Molded pulp article and molding method
IPC: D21J7/00
Filed: 1959-09-15
Abstract: 867,470. Moulding pulp. DIAMOND NATIONAL CORPORATION. Sept. 15, 1959 [Jan. 27, 1959], No. 31479/59. Class 87(2). [Also in Groups VI and XVII] The base of a moulded pulp container comprises an outer layer of relatively non-absorbent pulp and an inner layer of absorbent pulp. The container is formed by the successive deposition of two slurries in a suction mould. A lower portion 50 of the mould is connected to a source of suction and an upper perforated portion 52 supports a wire screen 54 having projections thereon to form cup shaped depressions on the inside of the base of the container. The absorbent layer 60 is deposited first from a slurry of sulphite stock. The less absorbent layer is next deposited from a slurry of groundwood stock. The sulphite stock contains “% to 1% by weight of unsized pulp fibres in water ; the groundwood stock contains 1% by weight of pulp fibres in water, or up to 3% if a thicker slurry is required. The mould may be dipped successively into two vats or the mould is placed on a rotary drum type moulding machine which advances the mould through a vat divided vertically into two sections each containing one of the slurries. Two or more layers of each slurry can be deposited. Specification 864,039 is referred to.
Patent GB-817226-A (GB)
Title: Dipping process for coating articles with a liquid or semi-liquid material capable of solidification and apparatus for carrying out the process
IPC: B05C3/10
Filed: 1956-10-16
Abstract: <PICT:0817226/III/1> Articles are coated with a solidifiable liquid or semi-liquid material, by conveying them by rotatable carriers round a continuous circuit at one section of which a bath of coating material is situated, bringing each article to the surface of the bath while projecting horizontally, or at an angle above the horizontal, from its carrier, dipping the article into the bath by turning the carrier so as suddenly to swing the article to a position vertically below the carrier, moving it horizontally through the bath to an ascending portion of the circuit where it is slowly lifted from the bath while still suspended below the carrier but inclined to the vertical, swinging it rapidly through an arc of approximately 180 degrees by rotating the carrier, and finally conveying it through a section of the circuit where the coating on the article undergoes solidification.  As shown, bottles 12, 121, 1211 are loaded on split-pin holders on carrier members 6 which extend between endless travelling members 1 e.g. sprocket chains, which pass around rollers such as 2, 211.  They pass through a preheating chamber 19, and are then coated by dipping in a constant-level bath 21, the members 6 being given a pivoting movement as the bottles enter the bath, so that they do so rapidly.  To this end, the member 6 is connected at each end through an overload clutch to a two-armed lever carrying rollers 281, 2811, Fig. 7, which are guided in a track 22; as the roller 281 leaves this it strikes a springloaded lever 40, which causes it to move in the direction of the arrow 42, the roller 2811 following the guide surface 43.  After dipping has taken place, a rectangular portion of the member carrying the rollers 281, 2811 engages the sides of a track 44, to maintain the bottle in an almost vertical position.  The member 6 is then caused to rotate through 180 degrees by a segmental portion 50 of a member 25, fixed thereto, engaging a constantly-driven friction wheel 48, the above-mentioned overload clutch being overridden.  This causes the drop 47, formed at the bottom of the bottle, to distribute itself over the surface.  As the member 6 reaches the upper horizontal flight of the chains 1, the rollers 281, 2811 are guided into the horizontal position, and the bottles are carried through a heating chamber 60 and a cooling chamber (not shown) before being discharged.  Splinter-retaining coatings may be applied to glass bottles, or non-conductive coatings to metal articles, by the method described.  The coating material may consist, for example, of a mixture of powdered polyvinyl chloride and a plasticizer, e.g. dioctyl phthalate at about 20 DEG  C., the bottles being preheated to about 80 DEG  to 100 DEG  C.  Rubber latex may also be used.  Thin-walled articles may be produced by coating a former, and stripping off the coating after solidification.
Patent GB-935704-A (GB)
Title: Improvements in or relating to magnetic devices
Inventor: BRADLEY EDWARD MICHAEL
IPC: H03K17/84
Filed: 1960-09-13
Abstract: 935,704. Magnetic storage apparatus. INTERNATIONAL COMPUTERS & TABULATORS Ltd. Aug. 22, 1961 [Sept. 13, 1960], No. 31489/60. Class 40 (9). [Also in Group XIX] Data is stored in different areas of a thin magnetic film, and a selected area is brought to a magnetic state opposite to that of an immediately adjacent area by first switching it to the hard direction of magnetization, and subsequently allowing the magnetic state to relax to the easy direction under the influence of the adjacent area. A shifting register is shown in Fig. 2 which comprises storage areas 22/1- 22/n of a thin magnetic film 20 supported by a substrate 21. The easy axis of magnetization of the film is perpendicular to its length, and the film areas are switched to the hard direction in turn by overlapping drive pulses, Fig. 4, applied to respective drive conductors 23/1- 23/n. When the drive pulse in conductor 23/1 terminates, the film area 22/1 relaxes to a magnetic state along the easy direction of magnetization determined by a write pulse in a write conductor 24. The write pulse terminates after the drive pulse in conductor 23/1. When the drive pulse in conductor 23/2 ceases, the associated storage area relaxes to a magnetic state in the easy direction opposite to that of the adjacent area 22/1. The drive conductor 23/1 is re-energized from drive generator 29 and a further write pulse is applied from input 30 when the previous input has progressed sufficiently far along the registration areas to avoid magnetic interaction. A read out conductor 25 is provided at the remote end of the register which is connected to an output unit 30, the identity of the output signal being characterized by the polarity order of two spaced output pulses of opposite polarities. As described, the binary input signal is of positive or negative polarity according to the digit value. Alternatively, an input signal may be present only for a binary one value, in which case a permanently magnetized area 20 is provided to establish a binary zero magnetic state in the first area 22/1. It is stated that a circulating register may be formed by a cylindrical construction in which the areas 22/1 and 22/n are adjacent. A number of parallel registers having common drive conductors and each provided with a read and a write conductor may use a common thin film. Transfer conductors perpendicular to the drive conductors may be provided whereby data may be shifted from one register to another. Specification 905,625 is referred to.
Patent GB-1366582-A (GB)
Title: Electron tube
IPC: H01J21/14
Filed: 1972-07-05
Abstract: 1366582 Thermionic valves V N MANYAFOV A I BUSHEEV R L SEMENOV and V A KLEVTSOV 5 July 1972 31534/72 Heading H1D A thermionic valve has an anode 4 divided into chambers 23 by fins 24. The width b and the depth a both in mm. of the chambers are determined in accordance with the formula where U a =a non-zero anode voltage, #U min = difference between anode voltage and the mini. mum chamber potential, j=mean current density at centre of the chambers in mA/sq. cm., and ch = hyperbolic cosine. By so choosing the dimensions of the chambers it is said that secondary electron emission from the anode is reduced.
Patent GB-1056678-A (GB)
Title: Improvements relating to cryosars
IPC: C23C14/22
Filed: 1964-08-04
Abstract: <PICT:1056678/C6-C7/1> <PICT:1056678/C6-C7/2> A thin film cryosar is produced by providing a highly compensated semi-conductor layer by evaporation on a substrate and ohmically connected to two deposited electrodes.  Fig. 4 shows an apparatus suitable for the deposition process.  Metallic electrode strips 10 thick are first deposited on glass substrate 15 by means of a mask 16 through which gold is deposited from source 10 in heater 8. Highly doped N-type germanium powder from source 11 is then carried by moving belt 13 to heated graphite strip 9 from which it instantly evaporates and deposits a 100 m  thick film on substrate 15 through another mask 16 so that a plurality of circular deposition are formed.  It is found that the deposited material has P-type with high (0.8) compensation. Alternatively both N and P type impurities and germanium may all be vapourized and deposited together simultaneously. The second series of electrode strips, at right angles to the first, are then deposited to form a matrix of cryosar devices each comprising a germanium element 3 between strip electrodes 2 as shown in Fig. 3.  In an alternative embodiment silicon containing 3.1015 atoms per cc. of boron and compensated 90% with antimony is used as the semi-conductor and this is heated by an electron beam.  The electrode material may consist of silver or nickel in place of gold, and the substrate of ceramic or mica in place of glass.  The layer may be polycrystalline or a single crystal.  The substrate may be heated to 100 to 600 DEG C.
Patent GB-453254-A (GB)
Title: Improvements in or relating to telegraph signalling systems
IPC: H04L27/20
Filed: 1935-11-14
Abstract: 453,254. Alternating current telegraphy; valve circuits. SOC. D'ETUDES POUR LIAISONS TELEPHONIQUES ET TELEGRAPHIQUES A LONGUE DISTANCE, 25, Rue du 4 Septembre, Paris. Nov. 14, 1935, No. 31594. Convention date, Nov. 15, 1934. [Classes 40 (iii) and 40 (v)] Telegraphic signals of opposite polarity are converted to alternating-current signals of constant frequency and opposite phase by means of a symmetrical modulator comprising a bridge of dry rectifiers, the reverse process being accomplished at the receiver by a similar symmetrical demodulator. As shown, the telegraph signals are applied to the points 1, 2 of the modulator 4, the alternating currents being taken from a source 3. At the receiver, the signals after amplification by the triode 11 are applied to the symmetrical demodulator 6 together with an alternating current of signal frequency and constant phase from an oscillator 21 the frequency of which is controlled from the output of a frequency doubler 20 supplied with signal currents from the transformer 19 in the anode circuit of valve 11. For signal level correction a transformer 15 in the anode circuit of valve 11 supplies signals which are rectified by elements 17, 18 and charge a condenser 16 included in the grid circuit of valve 11 to reduce its amplification. The transformer 15 is shortcircuited however by the biassed rectifying elements 12, 13 when the signal level is below a predetermined value. Specification 356,584 is referred to.
Patent GB-782185-A (GB)
Title: Improvements in or relating to hydrometallurgical production of metallic powders
IPC: C22B3/00
Filed: 1954-11-02
Abstract: Solutions containing salts of an inorganic acid and at least one of the metals Co, Cu and Ni are treated with a reducing gas at elevated temperature and pressure in two stages to precipitate metal, the first nucleation stage consisting of inducing the precipitation of a fine seed powder at an acidic hydrogen ion concentration below that at the limiting free acid concentration at which reduction of the desired metal ceases, this fine seed powder being used in a second densification stage in a solution of salts in which the hydrogen ion concentration is adjusted to a value at which reduction proceeds readily by deposition on the seed powder, sufficient neutralizing agent being provided in this stage to prevent the acid liberated during reduction from increasing the acid concentration until the reduction is sufficiently complete.  The whole of a solution may be treated in this manner being subjected to nucleation, adjustment and densification successively or a small portion of the solution may be nucleated and then added to the already adjusted main body of solution for densification or a body of solution which has been subjected to a partial reduction in a densification step may be separated from the precipitated metal, adjusted to conditions suitable for production of seed, and reduced to form seed powder which is then recycled to a fresh body of solution for the densification reduction.  In the production of powder from a solution of NiSo4 the nucleation is initiated at an acid concentration between that at pH 6.7 and that at 5.0 per cent free acid, the solution is treated with ammonia to produce a basic pH and to convert the Ni to an ammine and then subjected to densification reduction, ammonia being added so that the terminal sulphuric acid concentration is between those at pH 1.5 and 5.0 per cent free acid.