baber/WOPTO huggingface dataset:
Patent GB-1315318-A (GB)
Title: Process and apparatus for the determination of the fastness of  materials to light
IPC: G01N17/00
Filed: 1970-09-04
Abstract: 1315318 Determining light fastness of materials SOLVAY & CIE 4 Sept 1970 [4 Sept 1969] 42601/70 Heading G1A Properties of a material which are affected by incident light e.g. colouration, impact strength, and/or flexural strength are tested by comparing the properties of a material which has been exposed for a predetermined period to ultraviolet radiation from a source of light with those of material which has not been so exposed. The light source may be a fluorescent tube, a carbon arc lamp, a mercury, xenon or krypton arc lamp and the exposure is made to a predetermined quantity of energy in the ultra-violet range. The quantity may be measured photo-metrically, photographically or by observing changes in coloration of reference materials. A photometric measure of intensity may be used to control the current through the lamp which may be achieved by a thyristor in series, or the lamp circuit may comprise means interrupting the lamp for a period of time. Measurement may be of the whole radiation, or of a number of selected wave-lengths and, a photo-voltaic photo-resistive cell or a photo-multiplier to which light is applied by a monochromator may be used. The material may be mounted in a chamber to rotate around a source and the temperature and humidity within the chamber may be maintained constant.
Patent GB-1397437-A (GB)
Title: Ventilation device for a magnetic disc unit
IPC: G11B3/58
Filed: 1972-09-14
Abstract: 1397437 Ventilation device for a magnetic disc cartridge unit COMPAGNIE HONEYWELL BULL 14 Sept 1972 [30 Sept 1971] 42770/72 Heading G5R [Also in Division F4] A ventilation device for a magnetic disc cartridge 1 having an opening 10 for cleaning brushes 7 for the discs 3, 4 and an opening 11 for transducers 12 supplies filtered air to the opening 10 via a duct 8, the air then issuing from the opening 11 to a deflector 13, and the brushes 7 being pivotally mounted on supports 5 in the duct 8, so that in their inoperative position the brush supports 5 partially block openings (16), Fig. 2 (not shown), of a grille (14) disposed across the duct 8, and an increased air flow will be obtained when the brushes are pivoted to sweep the discs 3, 4, to remove dislodged dust. In the duct 8 are also a fan, a filter and a self-regulating damper 15 pivoted by the air flow against spring bias. The damper 15 actuates a microswitch of an alarm if the air flow is too low. To prevent influx of dust through the opening 11 due to turbulent air flow thereat, some incoming air may be diverted from the duct 8 across the opening 11, Fig. 5c (not shown), while the concave deflector 13 directs outgoing air back across the opening 11. The opening 11 and the heads 12 may also be enclosed in a chamber (29) out of which there is a laminar air flow (30).
Patent GB-1184908-A (GB)
Title: Improvements in Casting
Inventor: HALSEY GORDON
IPC: B22C1/16
Filed: 1967-09-20
Abstract: 1,184,908. Casting processes. MONSANTO CHEMICALS Ltd. 23 Aug., 1968 [20 Sept., 1967], No. 42787/67. Addition to 1,132,361. Heading B3F. [Also in Division C3] An assembly comprising a ceramic shellmould surrounded by particulate active carbon is heated to initiate combustion of the carbon, metal is cast while the assembly is still hot, and the casting and assembly are allowed to cool to a temperature at which exposure to the atmosphere does not have an adverse effect on the casting, after which the mould is withdrawn from the surrounding carbon. The assembly may be heated at the same temperature, e.g. 950- 1100 C, and using the same furnace, as for the firing during production of the mould. The carbon may be produced by pyrolysis of coconut shells, and may have specific surface area 500-1600 m<SP>2</SP>g<SP>-1</SP>; the particle size may be - 30 + 150 BSS mesh. The mould may be made by the lost-wax process from a slurry of sillimanite - 200 mesh in hydrolyzed ethyl silicate solution and a sillimanite stucco - 40+80 mesh. The metal may be a low alloy, plain carbon, or ferritic or martensitic stainless steel. Oxidation defects, e.g. pitting or decarburization, of the casting surface are prevented. To counteract the insulating effect of the assembly, the carbon may be mixed with an inert diluent of higher conductively or it may be fluidized using a cold, inert gas, e.g. CO 2 ; or metal and mould temperatures during operation may be lower than is conventional.
Patent GB-1122998-A (GB)
Title: A composite floor
Inventor: THIELEN HEINZ GUSTAV WILHELM
IPC: E04F15/22
Filed: 1965-10-11
Abstract: 1,122,998. Resilient flooring. FORSHAGA A.B, 11 Oct., 1965 [9 Oct., 1964; 8 June, 1965], No. 43023/65. Headings E1B and E1W. Resilient flooring for, e.g., a gymnasium, comprises one or more corrugated sheets 3 arranged beneath an insulating layer 4' carrying the floor covering 6. Adjacent sheets 3 may be joined in situ and the insulating layer layed thereon afterwards, or the flooring may be formed from pre-fabricated sections, e.g. 28 and 29, as shown. The flooring is laid on a concrete slab 1 covered with an insulating layer 2 of, e.g. tarboard, and the insulating layer 4' may comprise a fibrous layer or it may be replaced by two layers 4 and 5 (Figs. 1-6, not shown), of waffle board impregnated with asphalt, and, e.g., wood fibre boards, respectively. The corrugated sheets 3 may comprise hard polyvinylchloride, between 0.5 and 1.5 millimetres thick, or coated metal sheet or foil, and the corrugations may be trapezoidal, as shown, sinusoidal, rounded saw toothed, or deformed trapezoidal in crosssection.
Patent GB-1076955-A (GB)
Title: Improvements in and relating to electrical converting apparatus
IPC: H03M1/00
Filed: 1965-10-12
Abstract: 1076955 A/D converters PHILCO-FORD CORPORATION 12 Oct 1965 [12 Oct 1964] 43329/65 Headings H4R and R22X In a vocoder system an input speech signal is applied to sixteen different band-pass filters, the output voltages of these channels being sampled sequentially and digitized by pulse counting using a ramp voltage as a reference, and the invention lies in adjusting the dynamic range of the ramp generator in accordance with the range of voltages from the sixteen frequency channels. The maximum and minimum voltages present on the channels are selected by diode circuits, Figs. 3, 4 (not shown). The maximum voltage is applied to control the charging rate of a capacitor in the ramp generator (and also determines the upper limit of the ramp voltage). A voltage which is a measure of the ratio of the maximum and minimum voltages controls the starting voltage of the ramp generator. This control voltage is derived from an auxiliary quantizer comprising a comparator to which is fed the minimum voltage and which opens a gate to pass pulses to a counter until its two inputs are approximately equal. The other input to the comparator is the maximum voltage attenuated, Fig. 5 (not shown), in accordance with the state of the counter, this attenuated voltage also forming the control voltage. The number of pulses supplied to the counter and the maximum voltage are transmitted to the receiver together with the encoded frequency samples.
Patent GB-1478470-A (GB)
Title: Electro-fluidic transducer
IPC: F15C1/04
Filed: 1974-10-07
Abstract: 1478470 Fluid regulation GARRETT CORP 7 Oct 1974 [9 Oct 1973] 43368/74 Heading G3H [Also in Division F2] In an electro-fluidic transducer comprising a fluidic element 11 having a nozzle 15 through which fluid discharges towards a pair of outlets 16, a pin 18 is angularly movable by electromagnetic means 12 about an axis parallel to the axis X-X to vary the proportion of fluid entering the respective outlets. The electromagnetic means comprises a coil 31 surrounding a soft iron centre pole 33 brazed to a block 34. The latter is brazed to a pair of soft iron side poles (35), Fig. 2 (not shown), secured by screws (36) to a mounting plate 20 and engaged by limbs of a U-shaped permanent magnet 37 secured to the block 34 by screw 38. An assembly comprising the coil 31, pin 18 and a supporting frame 27 is pivotally mounted via pivots 22 each designed to permit limited relative angular movement between its portions 22a, 25. In operation, the coil is energized via leads 32 and the pivots, and produces a flux which reacts with the magnetic field of the magnet 37 to revolve the assembly about the axis of the pivots, whereby the pin 18 deflects the fluid issuing from the nozzle 15. The assembly may be provided with counterbalancing means (42), Figs. 2 and 6 (not shown).
Patent GB-1319190-A (GB)
Title: Process for the manufacture of acrylonitrile and methacrylonitrile
IPC: C07C255/08
Filed: 1971-09-21
Abstract: 1319190 Ammoxidation catalysts STANDARD OIL CO 21 Sept 1971 [30 Oct 1970] 43888/71 Heading B1E [Also in Division C2] A catalyst has the empirical formula: A a  B b  C c  Fe d  Bi e  Mo f  O x  wherein A is an alkali-metal, rare-earth metal, tantalum and/or niobium, B is cobalt and/or nickel, C is phosphorus and/or arsenic, a and c are from 0 to 3, b is from 0.1 to 20, d is from 0.1 to 8, e is from 0.1 to 6, f is from 8 to 16 and x is a number determined by the valencies of the other elements. The catalyst may be obtained by co-gelling the various ingredients and drying the co-gelled mass to an appropriate size or the co-gelled material may be slurried and spray dried.
Patent GB-1168127-A (GB)
Title: An Arrangement for Releasable Connection of Tubular Members
Inventor: FORSTER FRANZ
IPC: F16B7/04
Filed: 1967-09-27
Abstract: 1,168,127. Joints for tubes. F. FORSTER. 27 Sept., 1967 [27 Sept., 1966; 12 June, 1967], No. 44045/67. Heading A4H. [Also in Division F2] Two, tubes 1, 6 square cross section are connected together by a cranked strap 7 welded or riveted to the inside of the tube 6 and extending from the end thereof through a rectangular slot 4 in the other tube 1 and by a wedge 9 driven into an aperture 8 in the strap. Further tubes may be connected to the other sides of the tube 1.
Patent GB-1379027-A (GB)
Title: Method of and apparatus for the removal of layers of polluting  liquids floating on water
IPC: E02B15/04
Filed: 1971-09-23
Abstract: 1379027 Separation of floating impurities SOC GENERALE DE CONSTRUCTIONS ELECTRIQUES ET MECANIQUES ALSTHOM 23 Sept 1971 [2 Oct 1970] 44472/71 Heading B2P In a method of removing a layer of a polluting liquid, e.g. oil, floating on the surface of water, water and overfloating polluting liquid are collected to a depth below the surface which can be varied, the collection being effected as a result of relative speed of movement between one or. more separating chambers of the cyclone type and the water and overfloating polluting liquid, the relative speed of movement causing the water and polluting liquid to enter the cyclone chamber or chambers, the or each chamber having a side. wall with a tangential inlet through which the water and polluting liquid enter the chamber, a closing wall or roof, the entry of the water and polluting liquid into the or each cyclone chamber as a result of the relative speed of movement being effective to fill the or each chamber with water and polluting liquid up to the closing wall or roof and to produce in the or each chamber a cyclonic rotation of the water and polluting liquid and hence a separation thereof by centrifugal force, whereby the polluting liquid is concentrated in a central axial zone from which it is evacuated through the said tube, while the separated water, freed from polluting liquid, is evacuated through the said outlet. In Fig. 1 and 2, vertical walls 1 articulated at 1' form a -convergent inlet in front of an apparatus which may be towed in the direction of arrow F along a sheet of water on which a layer of polluting liquid 2 floats. A blade 3 articulated about a horizontal axis 4 has a lip 5 acting as a scoop which collects the liquid 2 and part of the water 6 which are introduced tangentially into two cyclones 7, 8. The separated liquid is discharged through central tubes 10 into a storage chamber 14. The water is rejected towards the exterior through conduits 15, 16 at the bottom of the cyclones. Suction may be applied to the tubes 10 to increase the rate of flow. In an alternative arrangement, the apparatus may be placed at the rear of a boat which when reversed will effect removal of the polluting liquid. In another application, the apparatus may be stationarily placed in the flow of water in a river which is to be cleared of floating polluting liquid, the speed of flow ensuring introduction of the water and polluting liquid into the apparatus. In Fig. 3, a horizontal hydrocyclone 17, which may be incorporated in a hydroplane or hydrofoil craft, is equipped with a scoop 18 which is adjustable about an axis 19 and which directs water and polluting liquid tangentially into the hydrocyclone.
Patent GB-1324021-A (GB)
Title: Crystal conversion
IPC: H01L21/18
Filed: 1970-09-18
Abstract: 1324021 Crystal conversion PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 18 Sept 1970 [23 Sept 1969] 44585/70 Heading B1S A crystal is converted into another crystal within the same continuous isomorphous series by the complete or partial exchange of one constituent in the crystal for another supplied from a phase contacting the crystal and confined within a space heated to a uniform temperature. The material introduced into this space contains the constituents of the second crystal in the proportions substantially equal to those desired in the second crystal. Examples illustrate the conversion of an SnS crystal into a mixed crystal of SnS and SnSe and of GaAs into a mixed crystal of GaAsP.
Patent GB-1097037-A (GB)
Title: Time meters for vehicles
Inventor: BURROUGH RICHARD JAMES
IPC: G07C1/30
Filed: 1963-11-12
Abstract: 1,097,037. Time meter for motor vehicles. NOAH BOAT CO. Ltd. Oct. 28, 1964 [Nov. 12, 1963; Dec. 9, 1963], Nos. 44661/63 and 48552/63. Heading G4T. In a time meter on a motor vehicle the rate of counting of a counter operated by a timing mechanism may be varied by a selector and is indicated by a coloured light or by the frequency of a flashing light. An electric or clockwork motor 1 drives, through gearing 2 and a conical spindle in frictional engagement with a jockey pulley 4 a variable speed disc 6 whose shaft carries gears for operating the counter. The jockey pulley 4 is mounted on a rod 14 movable axially by rotation of a knob 19 with a peg 17 engaging a helical groove 18. A light bulb 11 is also moved radially across the disc 6 with the jockey pulley 4 and is received through different coloured filters 10 according to the position of the pulley. The frequency of the light flashes also varies according to the position of the pulley and speed of the disc. A pointer 20 indicates on a scale 21 the recording rate at which the meter is set. The speed of rotation of the disc may be automatically changed, e.g. by radio signals.
Patent GB-934452-A (GB)
Title: Improved electrolytic titration apparatus
IPC: G01N27/44
Filed: 1960-12-30
Abstract: 934,452. Determining relative quantities of fluid mixture constituents. DOHRMANN INSTRUMENTS CO. Dec. 30, 1960 [Dec. 31, 1959], No. 44823/60. Class 37. An automatic electrolytic titration apparatus includes an electrolyte defining a reaction zone into which the substance to be estimated is introduced by a fluid, a reference electrode, a sensing electrode dispensed in the electrolyte, and a generating electrode system dispensed in, or in electrolytic contact with, the electrolyte, the electrodes being disposed with respect to one another such that the potential difference between the sensing and reference electrodes is substantially unaffected by the flow of current between the generating electrodes, and circuitry connecting the various electrodes to cause the generation of a titrant in accordance with the rate of introduction of the substance. The cell.-The glass cylinder 12, Fig. 1, contains the electrolyte 76, Fig. 6, forming the reaction zone, the slit cylindrical platinum generator electrode 38, and the sensing electrode 47, Fig. 5, of wire coated with silver or antimony, or of glass, and is provided with a magnetic stirrer, and with discs 24 of glass frit to reduce mixing with the electrolyte in the two side tubes 21 and 22 which contain the platinum generator cathodes 43 and 44. The capillary entry tube 31 for the substance acts as a pinhole bubbler at 32, opposite the calomel reference electrode 46 in side-tube 26. The ground glass joint 53 permits the sensing electrode 47, with its supporting glass tube 52, to be moved or removed, and rotation of cap 16 permits adjustment of generator anode 38 with respect to cathodes 43 and 44. Cylinder 12 and the side tubes may contain different electrolytes. Chloride, sulphide, and sulphate ions may be titrated using generator anodes and sensing electrodes of, respectively, silver, copper and lead; and carbon dioxide by using an antimony or glass sensing electrode and a barium chloride electrolyte. Iodine can be generated in a depleted Karl Fischer reagent, and bromine, for the titration of olefines. The circuit,-To the input of amplifier 61 is connected the sensing electrode, and the reference electrode via bias supply 63 set to balance the E.M.F. developed between the two electrodes in the absence of the substance to be titrated. Upon introduction of the latter, the resultant change in E.M.F. is amplified and applied to the generating electrodes, the variable feed-back resistor 71 reducing hunting.
Patent GB-931878-A (GB)
Title: Metal working tool
IPC: B21D22/16
Filed: 1961-12-15
Abstract: 931,878. Making tubes; rolling. TITANIUM METALS CORPORATION OF AMERICA Dec. 15, 1961 [Dec. 27, 1960], No. 44986/61. Classes 83 (2) and 83 (4). A metal working tool having a fixed member and a member which is relatively rotatable thereto for flow-turning a workpiece is characterized in that said rotatable member comprises an inner frame which is adjustably mounted and locked in the fixed member constituting an outer frame and a working ring freely rotatably mounted in said inner frame, the inner edge of said working ring being adapted to flow-turn a workpiece against which said edge is pressed during relative rotation of said tool and said workpiece. The tool comprises an outer frame 11 accommodating adjustable inner frames 16 provided with freely rotatable working rings 30 mounted in ball-bearing assemblies 32. In a modification, the outer frame is of annular construction and is provided with eccentric bores 42, 44 for accommodating the working rings 60, Fig. 5, said rings being mounted on ball-bearings housed in frames 46 having eccentric bores to enable the working rings to be adjusted relatively to each other. Flat cover rings 66 are bolted to each side of the outer frame to maintain the inner frames, bearings and working rings in their adjusted positions. In operation, the tool 39 is mounted on the face-plate 76 of the head stock 74 of a lathe, Fig. 6. A mandrel 84 held on the tail stock chuck 80 passes through the tool and the face plate 76. A tubular workpiece 92 mounted on the mandrel is gripped at one end by a member 90 mounted on a reciprocable-carriage 86 the other end of the workpiece being placed at the mouth of the working ring in the tool 39. The carriage is moved towards the tool which is rotated at the same time and the tubular workpiece is reduced in wall thickness and elongated in a twostep working process as shown in Fig. 7. Alternatively, the tool is clamped and the tubular blank and the mandrel rotated. The working edge of the rings may be blunt, rounded, flattened, angled or stepped. The wall thickness of the product tube may be varied over its length by appropriate intermittent or continuous adjustment of the working ring settings. By employing a mandrel with a reduced diameter portion a reductionin inside diameter of part of the tube may be produced.
Patent GB-1361787-A (GB)
Title: Delivery valves of fuel injection pumps
IPC: F02M59/00
Filed: 1971-09-29
Abstract: 1361787 Fuel injection pumps ROBERT BOSCH GmbH 29 Sept 1971 [30 Sept 1970] 45263/71 Heading F1A A delivery valve for a fuel injection pump comprises a spring loaded valve body 20 having a piston portion 39 for sucking back fuel from the injector line 28 during valve closure, and a profiled control member 40 which, during valve opening, enters a guide bore 32 progressively to throttle the flow therethrough with increasing valve lift. Whereas with a conventional valve the increased throttling of spillage from the pump working chamber 16 with increasing speed causes the delivery to increase, the throttling by the control member 40 of the present valve causes a reduction of the delivery with increasing speed. A throttle passage may be provided through the suck-back piston portion 39. The control member may be cylindrical with a ground inclined flat 41 or a truncated cone disposed with its base remote from the guide bore.
Patent GB-1492584-A (GB)
Title: Holographic data storage systems
IPC: G03H1/00
Filed: 1974-11-07
Abstract: 1492584 Holographic data storage SIEMENS AG 7 Nov 1974 [7 Nov 1973] 45427/74 Heading G2J Items of data are recorded in parallel by a holographic system on a tape having a feed direction x and a "shake" component y. By the use of astigmatic signal and reference beams, 3, 4 aligned in symmetrical relationship with the feed direction x overlapping holograms are provided which are Fourier-invariant in the y direction.
Patent GB-1165222-A (GB)
Title: Process for Coating a Cellulosic Substrate with a Film-Forming Resin Composition
IPC: B05D7/08
Filed: 1966-10-12
Abstract: 1,165,222. Coated cellulosic substrate. WEYERHAEUSER CO. 12 Oct., 1966 [22 Oct., 1965], No. 45551/66. Heading B2K. [Also in Division C3] A cellulosic substrate e.g. lumber wood, plywood, hardboard or phenolic impregnated kraft paper overlaid plywood, is coated with a thermoplastic-thermosetting resin composition, without blistering of the coating or degradation of the substrate, by applying thereto e.g. by roll, spray, brush or curtain coater, a film of the resin composition in a liquid vehicle, impinging a hot gaseous medium against the surface of the film at a velocity sufficient to remove forcibly the liquid vehicle vapour layer in contact with the film surface and to remove the liquid vehicle substantially completely from the film, and heating the dried film to a temperature sufficient to cure the film without substantial heating of the substrate. The gaseous medium may have a velocity of from 300 to 3000 feet per minute and a a temperature up to 280‹F. The dried film may be heated e.g. under infra-red heat, to a temperature of up to 350‹F to cure the film. A primer e.g. of short or medium oil alkyd, vinyl alkyd, vinyl acrylic, urethane, thermo, plastic acrylic latex or an acrylic latex having from 20 to 80 parts to 50 to 50 parts ratio of a thermoset acrylic to thermoplastic acrylic vehicle, may be applied e.g. by rolls, spray, .brush or curtain coater, to the substrate prior to application of the thermoplastic-thermosetting resin composition. The resin composition may comprise 20 to 50 parts by weight of a thermosetting acrylic resin and 80 to 50 parts by weight of a thermoplastic acrylic resin; or 20 to 50 parts by weight of a thermosetting polyvinyl acetate resin and 80 to 50 parts by weight of a thermoplastic polyvinyl acetate resin.