baber/WOPTO huggingface dataset:
Patent GB-981920-A (GB)
Title: Cinematographic projection apparatus
Inventor: WRIGHT JOHN WILLOUGHBY THOMAS
IPC: H01K9/00
Filed: 1962-07-05
Abstract: 981,920. Lamps for cinematograph projection. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. July 3, 1963 [July 5, 1962], No. 25860/62. Heading H1F. Apparatus for projecting images from cinematograph film includes an electric incandescent lamp having two filaments of different power rating and means whereby for the projection of moving images the filament of higher power rating is energized at the voltage of the source and the other filament is energized at a voltage less than that of the source such that the colour temperature of the light emitted by the other filament is the same as that of the filament of higher power rating and whereby for the projection of still images only the filament of lower power rating is energized and that at the voltage of the source. The lamp may comprise a tubular envelope 8, Fig. 3, having a spherical portion 9 on one side of the axis 10 and a reflecting ellipsoidal portion (not shown) on the opposite side of the axis. One of the faces of the ellipsoid coincides with the centre of the circle and the filaments 3, 4 which may be parallel to one another as shown, or at right angles, are arranged in the vicinity of this point, light passing from them to the film gate or lens system through a window 11 in the spherical part. The lamp may be of the sealedbeam type. In place of a reflecting coating on the lamp, a separate ellipsoidal mirror may be used. In one form of switching arrangement the filament 4, Fig. 5, is connected through a switch 17 to the secondary of a transformer 18. The filament 3 is connected to one side of the secondary and to a switch 19 so that when the switch 17 is open, it may be connected to the opposite side of the secondary or, when the switch 17 is closed, to a tapping on the secondary.
Patent GB-705327-A (GB)
Title: Improvements in methods of testing temperature of materials during their thermal treatment
IPC: G01J5/52
Filed: 1951-11-06
Abstract: 705,327. Measuring heat radiation. MUNKER, T. Nov. 6, 1951 [Nov. 8, 1950], No. 25909/51. Class 40 (3). [Also in Group XXXV] The temperature of a body, e.g. a moving strip is measured or maintained constant by comparing radiation from it with that from a body of similar emissivity of which the temperature is known or may be maintained constant. The invention is described as a method of heat treating strip metal 3 passing through a furnace. Radiation from this strip is directed by a mirror 6 through a lens 7 and a perforated rotating disc 8 on to a lead sulphide cell 9. At the same time radiation from the comparison body 10, the temperature of which is indicated externally of the furnace by a thermocouple embedded in it, or alternatively maintained constant is received on the lead sulphide cell through a similar optical system. Sources of visible light 17, 14 are provided for focusing purposes. The perforated disc interrupts each beam alternately and on its shaft is a generator 22 having as many poles as there are apertures in the disc. The cell output is fed through a conventional amplifier to a phase discriminating circuit also fed from the generator output, Fig. 2 (not shown). Inequality in the radiation beams causes deviation of an instrument pointer closing contacts, which may for example speed up or slow down the passage of the strip through the furnace maintaining the strip temperature within permissible limits. The comparison surface 10 may be heated electrically or liquid cooled. Since the comparison surface will generally be at a higher temperature than the strip a filter may be provided to reduce radiation from it. A number of comparative radiators may be provided for different temperature ranges or a single radiator and a number of filters. The photo-cell may be replaced by a resistance element.
Patent GB-848230-A (GB)
Title: A process of separately recovering aluminium, iron and titanium values from material such as "red mud" containing said values
IPC: C01F7/08
Filed: 1957-08-16
Abstract: Aluminium, titanium and iron values are separately recovered from materials containing said values, for example, red mud, bauxite, or residual material from the manufacture of ferro titanium from rutile or ilmenite, by sintering with sodium carbonate at 800-850 DEG C. for 10-30 minutes in the presence of 1-2% by weight of sodium borate, based on the alumina present.  The product is leached with boiling water, and the resultant liquid is treated with carbon dioxide, or furnace fumes containing carbon dioxide, to precipitate alumina.  The mother liquor remaining after the alumina has been precipitated may be concentrated and dried for example by atomisation to recover solid sodium carbonate, which may be returned to the initial sintering step, or it may be treated to recover other metal values in solution, such as manganese, chromium, or vanadium, by conventional methods. The leach residue, containing the iron and titanium is smelted to give a fused mass of iron and a slag containing titanium substantially free of iron, for example in an electric furnace, in the manner described and claimed in Specification 802,336.  The slag may be treated as described and claimed in Specification 789,104 and 791,302 to recover the components.
Patent GB-599137-A (GB)
Title: Improvements relating to the monitoring of pulse generating circuits
IPC: H03K5/00
Filed: 1944-12-27
Abstract: 599,137. Cathode-ray oscillographs. BRITISH THOMSON-HOUSTON CO., Ltd., and MELVILLE, W. S. Dec. 27, 1944, No. 25949. [Class 37] For monitoring in a cathode-ray tube, the waveform of the pulses generated by. the recurrent charge and discharge of a capacitance network, the tube sweep voltage is initiated by an impulse, derived from the network charging circuit, which is applied through a delay circuit to trigger the network discharging device. In this way, the beam scan of the C.R.T. is started before the production of the pulse and the timing of the scan and pulse voltages are interdependent. As shown, the pulse producing network 1 is charged from the secondary of a transformer 4 connected to an A.C. source 3 of pulse-recurrence frequency and is discharged through load 2 and the normally non-conducting valve 5. A peaking transformer 11 in series with transformer 4 provides a triggering voltage for the gas-filled triode 12 which discharges condenser 6' through its load resistance 8, the condenser 6<1> being charged through resistance 7 from a tapping on transformer 4. The impulse voltage across resistance 8 produces the scanning voltage for deflecting plates 9 of cathode-ray tube 6 across condenser 16, charged through resistance 15, and is also applied as a " brightening " pulse to the control electrode 17 through capacitance potential divider 19, 20, 21. A portion of the impulse voltage across resistance 8 is fed through delay circuit 10 to valve 5 to render it conducting for the production of the main pulse in load resistance 2, at a predetermined time after the tube deflecting voltage sweep has commenced.
Patent GB-1034513-A (GB)
Title: Method of continuously heat-treating metal strip
IPC: C21D8/04
Filed: 1964-06-23
Abstract: <PICT:1034513/C6-C7/1> In a process and apparatus for heat-treatment of metal strip the latter is continuously passed under tension through a heating zone wherein it is heated to a temperature at which plastic deformation occurs, the degree of stretch being controlled by controlling the differential between the rates at which the strip is fed to and withdrawn from the heating zone.  The latter may be maintained at a temperature above the recrystallization temperature of the strip.  As illustrated in Fig. 1, strip uncoiling from braked drum 10 passes through bridle rolls 12 and the through successive heating holding and cooling zones 14, 17 and 19, and bridle rolls 16 before being rewound.  Bridle rolls 12 and 16 are driven by motor 28 and 24 through differential gear box 26, by means of which a constant speed differential is maintained.  Alternatively the two sets of bridle rolls may be driven by separate electric motors, a suitable control being provided.
Patent GB-646273-A (GB)
Title: Improvements in or relating to power transmission belts
Inventor: MARTIN ROBERT
IPC: F16G5/18
Filed: 1948-10-05
Abstract: 646,273. Driving-belts; fasteners. BRITISH CELANESE, Ltd. Oct. 5, 1948, No. 25966. [Class 80(i)]  A V-belt, for use particularly with expanding pulleys is composed of a series of arched sections 10 of leather or balata, the width of each section increasing towards the ends thereof. An additional tapered section 12 is clamped between the sections 10 at each flanged joint 11. Each section has holes pierced therein through which pass the teeth 27 of a comb-like sheet metal fastening member 28, the ends 29 of the teeth being turned up to engage a second comb-like member 30. Both members are slightly bent. In an alternative form of fastening, flat links are threaded through the holes in adjacent sections and flat bars passed through perforations in the ends of the links. In a modification of this fastener, round bars are used and engage a pair of shaped plates interposed between the bars and the sections.
Patent GB-1336049-A (GB)
Title: 2-haloalkylamino-s-triazines
Filed: 1971-04-19
Abstract: 1336049 Triazines BADISCHE ANILIN- & SODA-FABRIK AG 19 April 1971 [3 April 1970 5 June 1970] 26023/71 Heading C2C S-triazines of formula where n is 1, 2 or 3 and A is where X is Cl or Br and Y is hydrogen, Cl, Br or derived from the olefinically unsaturated compound of formula which contains not more than 20 carbon atoms and is an olefinically unsaturated hydrocarbon of 3-20 carbon atoms or a derivative thereof or of ethylene containing one or more atoms or groups stable under the reaction conditions following and each B, if present, is also stable under the same reaction conditions and independently denotes phenyl, C 1-20  alkoxy, aryloxy, chloro, and an optionally substituted aliphatic C 1-18  hydrocarbon radical or mono- or disubstituted amino are prepared by reacting a compound of formula where B, X and n are as above and Y is Cl or Br, with the above olefinically unsaturated compound to produce the S-triazine where Y is Cl or Br and reducing, if necessary, with or without isolation of the intermediate to produce the S-triazine in which Y is hydrogen. The compounds are useful as fungicidal agents and may be used as such in drilling fluids, dispersions, wax emulsions, adhesives and for the treatment of leather.
Patent GB-350828-A (GB)
Title: Process of roasting and sintering pulverulent ores having a high sulphur content
IPC: C22B1/02
Filed: 1930-09-01
Abstract: Powdered ores having a high sulphur content are roasted and sintered by burning them, with or without added fuel, in an ignition apparatus over the sintering hearth of a blast-roasting apparatus; the burning ore falls on to the charge on the hearth and is roasted and sintered therewith.  The charge on the hearth may be sulphide, oxide, or other ore.ALSO:Powdered ores having a high sulphur content are roasted and sintered by burning them, with or without added fuel, in an ignition apparatus over the sintering hearth of a blast-roasting apparatus; the burning ore falls on to the charge on the hearth and is roasted and sintered therewith.  The charge on the hearth may be sulphide, oxide, or other ore.
Patent GB-425769-A (GB)
Title: Improvements in or relating to the production of chlorinated rubber
IPC: C08C19/12
Filed: 1933-09-21
Abstract: Chlorinated rubber is separated from its solutions by spraying the solution in the presence of condensible vapours at a temperature in the neighbourhood of or above the boiling point of the solvent and removing and condensing the vapours and the vaporized solvent.  The condensible vapour should be that of a liquid not miscible with or soluble in the solvent; steam is suitable.  The solution may be sprayed with the aid of the condensible vapour.  The sprayed mixture may be blown into a quantity of the condensed liquid, e.g. through a nozzle beneath the surface of water.  The steam is completely or partly condensed, while the solvent vapours pass off to a condenser.
Patent GB-518891-A (GB)
Title: Improvements relating to alternating electric current generators
IPC: H02K19/38
Filed: 1938-09-07
Abstract: 518,891. Alternating current generator. LUCAS, Ltd., J., and WATSON, E. A. Sept. 7, 1938, No. 26129. [Class 35] An alternator comprises a stator armature winding c and a rotor field winding d which is excited from the rotor winding f of a machine connected to or integral with the alternator, the exciting current being rectified by a rectifier g. The stator winding i of the excitor may be supplied with current from the stator winding c of the alternator through a rectifier and an adjustable resistance k. Specification 409,466 is referred to. '
Patent GB-628823-A (GB)
Title: Improvements in or relating to inductances
IPC: H01F17/04
Filed: 1946-08-30
Abstract: 628,823. Inductances. PHILIPS LAMPS, Ltd. Aug. 30, 1946, No. 26162. Convention date, March 10, 1943. Addition to 626,946. Drawings to Specification. [Class 38 (ii)] An inductor has an outer magnetic shell constituting a core of the kind claimed in the parent Specification, i.e. it is of mixed ferrite material having a specific resistance of at least 1000 ohms, on a homogeneous cubic crystal structure, an initial permeability of at least 60, and a loss factor less than 0.06 throughout the frequency range of 10-1000 kc/sec- and a central core member which may be of similar or other magnetic material. Airgaps may be provided, either concentrated at the central core ends, or distributed by making the central core of powdered material.
Patent GB-1485625-A (GB)
Title: Conversion of liquid hazardous wastes to solid form
IPC: C04B32/00
Filed: 1973-06-01
Abstract: 1485625 Treating waste C L CHAPPELL 30 Aug 1974 [1 June 1973] 26201/73 Heading C1H A process for the conversion of a hazardous waste into a substantially impermeable solid comprises adding cement powder of substantial calcium content, and a powder consisting of aluminium silicate and/or an aluminosilicate, to the waste dissolved or dispersed in water, thereby forming a flowable slurry containing the waste, and allowing the slurry to set into a rigid rock-like mass. The calcium-containing cement may be Portland cement, while the aluminosilicate may be vermiculite or, preferably, fly ash from the combustion of pulverized coal. If desired, an oxide or hydroxide of aluminium or iron may also be present in the slurry. Where fly ash is employed, the presence of an alkali metal silicate ensures that the slurry sets more quickly. The hazardous waste may contain Al, B, Cd, Cr, Cu, Fe, Pb, Mn, Ni, Sn, Zn, As, Sb, Ba, Co, Ga, Hf, Hg, Mo, Nb, Sr, Ta, Th, Ti, V, Zr, Se or Ag or a compound of any of these elements. It may contain anions such as fluoride, sulphate, phosphate, nitrate, nitrite, sulphite, cyanide, sulphide, thiocyanate, thiosulphate, ferricyanide or ferrocyanide and it may contain an acid, alkali, protein, carbohydrate, Prussian or Turnbulls blue, detergent, mineral oil, fat, tar or grease. Hazardous wastes mentioned include mining and metallurgy wastes (e.g. mine tailings and drosses), paint wastes, sulphide dye liquors, inorganic catalysts, electrical wastes (e.g. printed circuit wastes), printing and duplicating wastes, electroplating and metal finishing wastes, explosive industry wastes, latex wastes, battery production wastes, textile wastes, petrochemical industry wastes (including leaded petrol sludges and ash obtained by burning fuel oil), pulp and paper industry wastes, leather industry wastes, asbestos waste, scrubbing liquors from incinerators and gas cleaning equipment, silts and dredgings from waterways, spent oxides from gas purification, cement and lime industry wastes (including dust from electrostatic precipitators), sewage sludge, ash from burning domestic refuse and sewage sludge, and sulphide wastes (e.g. Ca or Na sulphide).
Patent GB-309366-A (GB)
Title: Improvements in or relating to heel protectors for use inside boots and shoes
IPC: A43B23/28
Filed: 1928-09-13
Abstract: 309,366. Tennick, P. M. Sept. 13, 1928. Detachable stocking protectors. - A heel protector to be worn inside a shoe comprises a base or tread portion A and a curved or heel portion B attached to the portion A at its rear leaving the wings or side walls free to adjust themselves to the heel of the wearer, these wing being secured to the base by an elastic cord or tape L. Preferably, the elastic cord passes through two large holes in the base and through small holes in the wings, stretching of the cord in process of adjustment reducing its diameter so that it slides through the small holes. As the tension decreases its diameter increases so that it is held in adjusted position by friction. The device may be of rubber, felt, canvas, leather, or paper, or may have canvas on one surface and rubber on the other. The protector may be combined with a sock, and may be worn as a filler with a shoe too large for the wearer. A number of blanks may be cut out of a sheet with little waste.
Patent GB-1342657-A (GB)
Title: Split housing with seal
IPC: F16J13/02
Filed: 1971-04-19
Abstract: 1342657 Joint-making packing; pressure doors DRESSER INDUSTRIES Inc 19 April 1971 [22 April 1970] 26328/71 Headings F2B and F2P A housing, Fig. 2, comprises a circular end member 24 and a pair of mating semi-cylindrical housing members, e.g. 16, each having a recess 26 for receiving a peripheral portion of the end member, and sealing means for forming a continuous fluid-tight seal between the assembled members. The sealing means includes a deformable annular seal member 46 concentric with and adjacent the periphery of the member 24 and of smaller diameter than the inner diameter of the assembled housing members, and deforming means engageable with the member 46 for deforming it into fluid-tight sealing engagement with the assembled end and housing members. As described the'end member 24 has a flange 28 received in a groove 26 in the member 16, and has peripheral grooves 30, 34 containing annular members 38, 40 respectively. 0-ring seals 46, 48, 50, 52 are received in grooves in the members 38, 40, and when the latter are urged together by bolts 58 the seals are deformed against the end member 24 or against the end and housing members. In a second embodiment, the member 38 and rings 46, 48 may be omitted. In a further embodiment, Fig. 4, only one seal member 146 is present and this is deformed when an annular member 138 is urged against it by bolts 158 threaded into an end member 124. In the first embodiment, Fig. 2, the fluidtightness of the seals may be tested by introducing fluid to the groove 26 via a passageway 60.
Patent GB-1505777-A (GB)
Title: Method and apparatus for regulating the fat content of milk
IPC: G05D11/13
Filed: 1976-06-24
Abstract: 1505777 Measuring density OTT AG GEBR 24 June 1976 [4 July 1975 26 May 1976] 26348/76 Heading G1S [Also in Division G3] The density of fluid flowing in a tube 3 is measured by channelling part of the flow through a vibrating arm 40. Electromagnet 42, transistor 45 and permanent magnet 41 cause the arm 40 to vibrate at its resonant frequency. This frequency depends on the mass and thus density of fluid in the arm 40 and is output via transformer 46.
Patent GB-1398011-A (GB)
Title: Surgical dressings
IPC: A61L15/58
Filed: 1972-06-06
Abstract: 1398011 Surgical dressings BTR INDUSTRIES Ltd 26 July 1973 [6 June 1972] 26376/72 Heading A5R [Also in Divisions B5 and C3] A surgical dressing comprises a backing strip 10 having on one side an adhesive facing 11 and an absorbent pad 12 adhered thereto, there being a film 13 of elastomeric material of a synthetic or natural rubber overlying the pad, the film being perforated to allow exudate from a wound to be absorbed by the pad. The thickness of the film may be between 0.0005 and 0.010 inches thick, and the edges may extend beyond the absorbent pad and adhere to the adhesive facing. The film may be of guttapercha, polychloropropene, polyisoprene, or compounded of these materials with other elastomers or fillers, or may be of natural or synthetic rubber compounded with plastics polymers or polyethylene, or polyethylene compounded with polyisobutylene. The film may include additives, for example bacteriocides or bacteriostats such as hexachlorophene sulpha mirazine, sulphonamide, penicillin or tetracyclines. The perforations in the film are substantially 0.5 mm diameter, and there are substantially 100 perforations to the square centimetre. The backing strip is of plastics material preferably with ventilation pores or of a woven fabric and the adhesive facing 11 is a rubber-based pressure-sensitive adhesion material applied to the strip 10 as a network of adhesion bands. Protective leaves 14 15 temporarily cover the adhesive.
Patent GB-425056-A (GB)
Title: Improvements in or relating to the treatment of fish offal
IPC: A23K1/10
Filed: 1933-09-26
Abstract: <PICT:0425056/III/1> <PICT:0425056/III/2> A process for the dehydration of fish offal, employing the principle of multiple effect evaporation, consists in expressing some of the liquid content of the offal, concentrating the expressed liquid in a tubular evaporator and drying the remainder of the offal in a drier heated by the steam from the evaporator, and operating at a lower internal pressure than that in the vapour space of the evaporator with or without returning the concentrate produced in the evaporator.  Two forms are shown.  In Fig. 1, a batch method is shown.  Fish offal is charged into a steam jacketed sterilizer 1 and is passed on to an expeller 2, which may be of the worm type combined with steel bars, so that solid is retained and water passes through.  From the expeller 2 de-watered offal passes to one or other of feed hoppers 3, 4 which deliver to one or other of steam jacketed driers 5, 6.  The driers are employed alternatively and heated by steam produced in an evaporator 7 from the water expelled in 2 by way of a feed tank 8. The pressure in the driers 5, 6 is lower than that of the evaporator, the interior of the driers being connected to a vacuum pump 9.  Valves 10, 11 control the vacuum and other valves 12, 13 control the vapour from evaporator 7 to the steam jackets of the driers.  With reference to Fig. 2, a sterilizer 16 and expeller 17 are used as before, but the de-watered offal is delivered directly to a steam heated drying tube 18 and then to similar tubes 20, 22. A screw conveyer passes the offal therealong and agitates it in the presence of heat in the steam jackets.  The steam is supplied as before from an evaporator 23 operating upon filtrate from the expeller 17 via a tank 24.  The pressure in the tubes 18--22 is rendered lower than that in the evaporator 23 by means of a pump 25 with independently controlled valves 26, 27, 28. The tube 22 delivers offal alternately to vacuum receivers 29, 30 fitted with air-tight doors 33, 34.
Patent GB-510062-A (GB)
Title: Improvements in typewriter attachments for use with manifold carbon copy devices
IPC: B41J17/00
Filed: 1938-09-12
Abstract: 510,062. Carbon - sheet holders. WILKES, J. Sept. 12, 1938, No. 26534. [Class 16] [Also in Group XVI] A typewriter attachment comprises two side brackets 4, 5 which are secured to the side frames of the typewriter at the rear of the platen roller and carry a transverse bar 6 having lateral guides 9 between which continuous stationery 13 passes as it travels over the bar, and which carry an anchor bar 7 for a carbon pack or like copy device 2. The guides 9 consist of collars formed with split sleeves 10 to allow lateral adjustment. The stationery 13 is prevented from jumping over the collars by a wire rod 12 passed through holes in the collars, or by pins projecting from the collars. The carbon pack 2 is attached to a backing 1 provided with an extension which is folded on itself to form a loop 3 engaging the bar 7 to hold the pack while the stationery is being pulled forward. Alternatively, a short loop may be provided, in which case the extension curves when the pack is moved back.