baber/WOPTO huggingface dataset:
Patent GB-867002-A (GB)
Title: Improvements in or relating to the manufacture of cathode ray tubes for colour reproduction
IPC: H01J9/14
Filed: 1959-01-23
Abstract: 867,002. Colour television tubes. ZENITH RADIO CORPORATION. Jan. 23, 1959 [Jan. 23, 1958], No. 2539/59. Class 39(1). In the manufacture of non-planar colour television screens by a photo-resist technique involving optical projection through the associated shadow mask, an error arises, known as the triad shape error, which results in triad dispositions 40, 41 Fig. 6 at the edges of the screen instead of the desired equilateral array 39 at the screen centre. According to the invention this error may be corrected by employing, in the projection process, a compensated shadow mask which is made by establishing a projected image of an uncorrected mask, having a plurality of regularly disposed like apertures, in a plane non-uniformly spaced from the uncorrected mask to form in the plane a modified image in which the disposition of the apertures and their forms are changed and transferring the modified image to a mask blank, in which apertures are then formed corresponding to the modified aperture pattern image. As shown in Fig. 10, the uncorrected mask 49 may be spherically curved and the modified image formed by projection from a lamp 52 on a planar mask blank 54 which is then apertured in accordance with the modified image pattern and thereafter bent to a part-spherical or other non-planar form. Alternatively planar photosensitive surfaces U, V Figs. 11 and 12 may be given the desired image pattern by projection from a point-source M through an uncompensated mask 49. Preferably the modified apertures are elliptical where minor axes are related to the major axes in the ratio cos # cos α  where # is the angle through which an initially axially directed electron beam is deflected to be incident upon the aperture and α is the angle of incidence of the beam upon the screen adjacent to the aperture. Lens arrangements may also be used to provide the compensated image. The compensated mask may be used in the process for deposition of the phosphor areas on the screen as in Specification 849,254.
Patent GB-509328-A (GB)
Title: Improvements in or relating to feed hoppers
IPC: A21C5/04
Filed: 1938-01-27
Abstract: 509,328. Hoppers for feeding dough. CHRISTIANSEN, E., and ERICSSON, C. O. Jan. 27, 1938, No. 2580. [Class 78 (i)] [Also in Group V] A feed hopper for dough which has its upper end fitted with bars 2 to prevent the insertion of an operator's arm, is filled through the pivoted side flap 5. The latter receives dough when in the full-line position and delivers it to the hopper when pushed inwards to the dottedline position where it closes the opening in the wall. The flap also has a pin-and-slot engagement with links 12 pivoted to the walls of the hopper, in'order to limit its outward movement. The hopper is shown as a detachable fitting on a dough-balling machine in which a knife 15 severs portions of dough from the bulk for delivery by the reciprocating plunger 14.
Patent GB-177307-A (GB)
Title: Improvements in desiccators
IPC: D06C7/00
Filed: 1921-01-19
Abstract: 177,307. Vaccaro, F. M. Jan. 19,1921. Drying fabrics and materials in long lengths.- Apparatus for drying paper, cloth, &c. in web form or for drying material which is carried by a conveyer, of the class in which electric heatdng and an automatic air circulation are provided, comprises a heat-reflecting screen on which the electric heating-elementa are disposed so that the heat at the various parts of the apparatus is appropriately varied; the air passes upwardly in the inclined drying-chamber and at the upper end the moister portions are expelled, the remainder passing down through a conduit to be used again. Fig. 2 shows an inclined drying-chamber through which a web 1 of paper travels in counter-current to the air, and which is provided with a polished floor 6 on which insulators 7 are mounted carrying bars 8 on which are supported electric resistances 9 by which the heating is effected; direct or alternating current may be employed. To counteract the tendency of the paper to dry more rapidly at the edges, the chamber is divided into sections in the first of which a single heating- element is disposed in the middle, while in the others two and three heating-elements are employed extending nearer to the edges; switches regulate the degree of heating. A false, roof 14 formed with apertures 16 at the ends allows a natural circulation of part of the air to take place, while the colder and moister air passes out at an aperture 5 in the end. In the passage 17 above the roof 14, desiccants may be provided, or the parts forming the conduit may be constructed of moisture-absorbing material. Hinged side doors are provided, by opening which cooling is instantaneously effected.
Patent GB-420946-A (GB)
Title: Improvements in electric lighting installations for vehicles
IPC: B60Q9/00
Filed: 1934-01-26
Abstract: 420,946. Switching systems for lamps. BOSCH AKT.-CES., R., 4, Militarstrasse, Stuttgart, Germany. Jan. 26, 1934, No. 2693. Convention date, Feb. 1, 1933. [Class 38 (iv)] A vehicle lighting installation comprises a lamp d arranged to illuminate a part such as the ignition switch b or steering lock operated preparatory to starting the vehicle, the lamp being switched on by a manually operated switch i and extinguished automatically, as by closure of the battery cut-out k, when the engine is running. In modifications, Figs. 2 and 3 (not shown) the lamp d. which may also serve as a battery-charging indicator lamp. is extinguished by movement of the ignition switch to the position in which it closes the ignition coil circuit.
Patent GB-624664-A (GB)
Title: Improvements relating to instruments for measuring heat loss or utilisation
IPC: G01K17/14
Filed: 1947-01-29
Abstract: 624,664. Integrating apparatus. AMENDE, F. H. Jan. 29, 1947, No. 2793. [Class 106 (iv)] [Also in Group XX] An instrument for registering heat units comprises a meter operated by the flow of fluid in a system, the meter driving registering means under the control of two lost-motion mechanisms, the resultant lost-motion being dependent on the difference in temperature between two points, where are disposed temperature sensitive devices. A fluid-flow meter a drives, through a flexible coupling band gears d to h, two cams i, j, fixed on a shaft k and having equal, coincident excentricity. Two levers m, 19 fulcrumed at 22 have rollers p bearing on the cams i, j and as they are lifted thereby the lever m advances a ratchet wheel u and as they are lowered the lever 19 assisted by a spring 20 further advances the wheel u. The downward movement of the levers m, 19 is limited by the co-operation of arms n, pivoted at o and restricted in one direction by stops q, with cams 2, 3, which may be toothed, fixed on a lever x fulcrumed at y. The cams 2, 3 are set through linkwork by Bourdon tubes 9, 12 communicating with the temperature at the inlet and outlet of the heating system respectively so that at a predetermined maximum temperature difference the arm x is moved to its extreme right and the arms m, 19 oscillate to their full amplitude, while for 50 per cent of the said temperature difference the arm n of lever 19 rests on the horizontal part of cam 3 and only arm m oscillates to the full, its amplitude falling as the temperature difference falls. The ratchet wheel u actuates an indicator or counter to register the heat used. To register the heat units available in a fluid, the Bourdon tube 12 is maintained at some datum temperature, the amount of heat registered being relative to this temperature.
Patent GB-347736-A (GB)
Title: Improvements in pipe joints and the like
IPC: F16L23/08
Filed: 1930-01-28
Abstract: 347,736. Pipe joints. INSHAW, G. R., 50, St. Andrew's Drive, Pollokshields, Glasgow. Jan. 28, 1930, Nos. 2887 and 27732. [Class 99 (i).] A pipe joint comprises a flexible ring 2 contained in a recess formed by flaring or expanding the pipe ends, an annular ridge 3 on the ring butting against the pipe ends and a contractile clamp 4, the ring not conforming exactly to the shape of the recess but having a diameter at its edges 5 which is greater than when the joint is tightened. The ring may have additional lips 6 and the pipes may be formed adjacent the expanded end with a collar or corrugation so that an extra thrust may be borne by the clamp and not by the packing ring.
Patent GB-1418762-A (GB)
Title: N-amino-benzoyl-aminoarylsuphonic acids and process for pre paring them
IPC: C07C67/00
Filed: 1973-01-19
Abstract: 1418762 N - (Aminobenzoyl) - aminoaryl sulphonic acids HOECHST AG 19 Jan 1973 [22 Jan 1972] 2887/73 Heading C2C The invention comprises N-(3- or 4-aminobenzoyl)aminoaryl sulphonic acids of the formula and the alkali metal salts thereof, wherein X is H, halogen, alkyl, alkoxy, CH 3 OCO, C 2 H 5 OCO, mono- or di-alkylamine, CF 3 , C 6 H 5 -, C 6 H 5 O-, -NO 2  or -CN, Y is H, halogen, alkyl or alkoxy, A is a benzene or naphthalene ring (in which former case the SO 3 H group is p with respect to the benzoylamino group) and n is 1 or 2. They may be obtained by reducing the corresponding N-(3- or 4-nitrobenzoyl)aminoaryl sulphonic acids. Examples are given for the production of the compounds which may be isolated as the dicyclohexylamine salts. The N-(3- or 4-nitrobenzoyl)aminoaryl sulphonic acids are obtained by condensing nitrobenzoyl chlorides of the formula with sulphonic acids of the formula or by reacting the corresponding nitrobenzoic acid with an aminoaryl sulphonic acid of the above formula in the presence of PCl 3  in pyridine or quinoline.
Patent GB-1118901-A (GB)
Title: An improved telephone call box
IPC: E04H1/14
Filed: 1966-01-21
Abstract: 1,118,901. Releasable fastenings; preventing theft. G. F. YATES. 11 Jan., 1967 [21 Jan., 1966], No. 2906/66. Headings E2A, E2X. A public telephone call box has electricallycontrolled locks for the entrance door and a security box, housing the telephone and a coin receptacle, interconnected by a control circuit which ensures that the security box cannot be opened until the door lock has been engaged and that the door lock cannot be re-opened until the lock of the security box has been closed and if an attempt is made to damage the equipment in the security box, a tremblertype switch opens the door lock circuit and so prevents the door from being opened. At the same time an alarm bell can be energised and an alarm given at the exchange. A pushbutton switch enables an alarm to be given in event of failure of the door lock. A maignet may be provided to hold the lid of the security box in the open position.
Patent GB-570102-A (GB)
Title: Improvements in apparatus for the gravitational control of photo-electric cells
IPC: H01J40/00
Filed: 1943-02-23
Abstract: 570,102. Gravity controlled photoelectric devices. VICKERS-ARMSTRONGS, Ltd., CLIFTON, J. C., and RABARTS, F. W. Feb. 23, 1943, Nos. 2982/43 and 975/44. [Class 40 (iii)] The incidence of light on a photo-electric cell is controlled by a limited quantity of mercury 6 or an equivalent solid body movable to one side or the other within a substantially horizontal tube 5 or other channel under gravitational forces, and acting as a shutter between a source of light 4 and the cell 3. Two cells may be provided to detect movements in opposite directions. This device may be used to level a platform about two horizontal axes at right angles to each other. Specifications 336,609, [Class 40 (iii)], and 411,775, [Group XX], are referred to.
Patent GB-337695-A (GB)
Title: An improved distance or mileage indicating device
IPC: G09B29/06
Filed: 1930-01-29
Abstract: 337,695. Dawes, G. W. Jan. 29, 1930. Reel and non-endless webapparatus.-A distance or mileage indicating device comprises a band 8 bearing, in a plurality of columns, transverse rows of numerals and place names, the band being mounted on reels &c. 3 housed in a casing 1 bearing markings corresponding to the different columns on the band. The band is traversed by external knobs, and is visible through a slot 2. The casing 1 is closed by end plates which carry the reel bearings. A transverse rod 7 fixed to one end plate is attached by a screw to the other plate to hold the parts together, and acts as a support for pressing the displayed portion of the band 8 against the slot 2, which is backed by a celluloid or other covering 9.
Patent GB-462206-A (GB)
Title: Improvements in or relating to the manufacture of hydrated titanium compounds
IPC: C01G23/053
Filed: 1936-01-31
Abstract: Titanium compounds, suitable for use in the manufacture of pigments, are prepared by hydrolyzing, by heat and in the presence of finely divided calcium sulphate, a mineral acid solution containing titanium, in which alkali-precipitated hydrated titanium compounds have been dissolved prior to the hydrolytic decomposition.  The mineral acid titanium solution may contain additional free acid, and the hydrated titanium compounds dissolved in the hydrolysis solution may be obtained by precipitation with such compounds as sodium carbonate, potassium hydroxide, ammonium hydroxide, calcium carbonate, calcium oxide, calcium hydroxide and barium hydroxide. The calcium sulphate used preferably has the crystalline structure of anhydrite and other extenders, such as precipitated blanc fixe, milled natural barytes and milled natural silica, may be present during hydrolysis.  The final precipitate may be calcined, e.g. at 700--1200 DEG  C., with or without prior washing with an acid or a salt solution to free it from calcium sulphate.  According to examples: (1) Ilmenite is treated with sulphuric acid, the sulphate mass dissolved, the iron and a small proportion of the titanium reduced, and the solution clarified.  Sodium carbonate solution is poured upon the surface of this acid titanium solution, and the precipitated hydrated titanium compounds immediately stirred until they re-dissolve. The solution is then added to a slurry of calcium sulphate and the mixture boiled until 90--95 per cent of the titanium is precipitated.  The composite precipitate is separated, washed until free from calcium sulphate, dried and calcined at 850 DEG  C., yielding a product containing 99,1 per cent of titanium dioxide; (2) the acid titanium solution containing re-dissolved precipitated hydrated titanium compounds, prepared as in example (1), is mixed with a barytes-gypsum slurry, and with a water suspension of milled natural barytes.  This charge is boiled until 90--95 per cent of the titanium is precipitated.  The composite precipitate is separated, washed free from calcium sulphate, dried and calcined at 850 DEG  C., yielding a pigment containing 25 per cent of titanium oxide and 75 per cent of barium sulphate. Specifications 364,562 and 387,720 are referred to.
Patent GB-1441264-A (GB)
Title: Waste outlets for sinks baths and the like
IPC: E03C1/22
Filed: 1973-01-20
Abstract: 1441264 Waste outlet for sinks &c. CHARLES EDWARDS PLASTICS Ltd 21 Jan 1974 [20 Jan 1973] 3061/73 Heading A4N A waste outlet for sinks, baths &c. comprises an injection moulded plastics part having a tube 10, grille (14), Fig. 4 (not shown), and a radiallyoutwardly projecting flange 11, and a decorative metal part 18 also having a tubular part 19, a flange 20 and an openwork base 21, the metal part obscuring said flange and extending over said grille at which grille the parts are secured together and contact each other. In one embodiment a stem, (Fig. 4) integral with the grille, extending through an aperture in the metal part and terminating in a head portion 27, holds the metal on to the grille. Alternatively the metal part is secured to the grille by rivets 25, the central portion 22 of the base 21 being countersunk to accommodate the deformed end of the rivet, a resilient sealing ring 26 being provided between flanges 11 and 20. The grille 14 and the metal part 18 each comprise six arms 16 and 23, radiating from central portions 15 and 22 respectively, arms 23 overlying those 16 and having flanges 24 to form channels which each receive an arm 16. A plurality of securing devices may be provided.
Patent GB-572783-A (GB)
Title: Combined radio transmitter and loud speaker installation
IPC: H04B1/04
Filed: 1944-02-21
Abstract: 572,783. Combined wireless and loudspeaker apparatus. INTERNATIONAL MARINE RADIO CO., Ltd., and WITHEY, C. G. G. Feb. 21, 1944, No. 3169. [Class 40 (iv)] [Also in Group XL] In a combined radio transmitter and loudspeaker installation for use on ships, a twoway switch S1 connects an audio-frequency amplifier V3, V4 alternatively to the modulation stage of the radio transmitter and to the loudspeaker LS, and an additional microphone, which may be located on the bridge of the ship and which includes a pressel switch, is connected to wires M3 in parallel with the normal instrument. As shown in Fig. 1, plate circuit modulation is employed and the removal of the audio-frequency input disconnects the high-tension supply. When grid circuit modulation is employed, Fig. 2 (not shown), a second audio-frequency amplifier is provided for feeding the loudspeaker.
Patent GB-607385-A (GB)
Title: Improvements in or relating to the concentration of cobalt-nickel ores
IPC: B03D1/02
Filed: 1946-02-01
Abstract: In a method of concentrating the sulphides of nickel and cobalt from an ore containing nickel, cobalt and iron sulphides, an aqueous pulp of the ore is conditioned with a selective collector for the nickel and cobalt sulphides, and a selective depressant for the iron sulphide, which depressant comprises an alkali ferricyanide and/or an alkali ferrocyanide together with an oxidizing agent such as an alkali permanganate and/or dichromate, and then subjected to froth flotation.  Xanthate promoters and higher aliphatic alcohol frothers have been found satisfactory for the flotation of the nickel and cobalt sulphides and sodium and/or potassium ferrocyanide with sodium or potassium permanganate or dichromate for the depression of the iron sulphide.  The pulp may be given a preliminary alkaline flotation at pH 9-10 to remove copper and lead.
Patent GB-538662-A (GB)
Title: Improvements in or relating to potato planting and harvesting machines
IPC: A01D17/10
Filed: 1940-02-22
Abstract: 538,662. Endless conveyers. CHAMBERS, C. F. M., and BURROUGHES, G. S. L. Feb. 22, 1940, No. 3356. [Class 78 (i)] [Also in Group I] A machine for harvesting potatoes has an elevator adapted for use in planting as well as harvesting potatoes. Potatoes lifted by a share 7, Fig. 1, are passed by a conveyer 6 to a bar screen 5, which is curved at the end to feed the potatoes to the cup-like teeth of an elevator, which delivers them over spaced bars 14 to a conveyer for bagging. The teeth 4 separated by links 8, Figs. 4 and 6, are arranged in rows on rods 10 carried by chains 11, flanking teeth 9 being provided at the ends of each row to prevent the tubers from falling off. The backs of the teeth 4 are curved and inclined so that tubers falling from the teeth are directed smoothly to the bars 14 over the backs of the teeth in front. The teeth 4, the bars 14 and the conveyer 15 may be made of or covered with rubber or leather. For planting, the drive of the elevator is reversed and potatoes fed singly to the teeth at a position 16 'are released from the bar 5 at spaced intervals. Alternatively, some of the teeth 4a, may be reversed, as shown in Fig. 3, and potatoes fed thereto by a conveyer 18 are delivered to the adjacent teeth 4 as they pass over the upper sprocket wheel of the conveyer. For planting, a ridging blade 19, a manure distributer 20 and disc 21 for covering the seed may be fitted on the chassis.
Patent GB-827007-A (GB)
Title: Improvements relating to drum tipping apparatus
IPC: B65G47/24
Filed: 1957-01-31
Abstract: 827,007. Hydro-pneumatic spring units. BRITISH PETROLEUM CO. Ltd., and FRANCE, J. D. Jan. 20, 1958 [Jan. 31, 1957], No. 3399/57. Class 108(3) [Also in Groups XVII and XXX] A cradle 12, 13, Fig. 1, for tipping drums 16 by gravity about an axis 11 (see Group XXX) is damped by a hydro-pneumatic cylinder 17 with a hollow piston 18 having an orifice disc 22, Fig. 4, at its inner end. On the inward stroke, oil flows at a controlled rate through the orifice and compresses air in the upper end of the piston, and on the return stroke the disc lifts from its seating 23 to allow a faster flow. A residual air pressure is maintained by means of a valve 24.
Patent GB-955250-A (GB)
Title: Tiered waggon for vehicle support
IPC: B60P3/08
Filed: 1963-01-28
Abstract: 955,250. Rail vehicles for transporting vehicles. SOC. NOUVELLE DES ATELIERS DE VENISSIEUX. Jan. 28, 1963 [Feb. 9, 1962], No. 3401/63. Heading B7L. The top tier of a two tiered waggon comprises two parts 3, 4 each pivoted at 7 to longitudinal member 5, 6 which are attached to supports 9 slidable along uprights 10 under the control of jacks 12. The tier parts 3, 4 may be further subdivided and they are supported by members 8 pivoted at 14 by removable pins 15 to members 5 and locked to members 6 in the operative position. The parts 3, 4 and members 8 are folded against the waggon sides whilst the bottom tier is loaded and are then lowered into position to load the top tier; jacks 12 then raise or lower the various parts of the top tier so that the loaded waggon comes within the railway clearance gauge. In Figs. 6-8, not shown, the supporting members 8 are in two parts, each pivoted to members 5 or 6, the two parts being locked together in the operative position. The uprights 10 may be joined together by tracks 16, Fig. 4.
Patent GB-111219-A (GB)
Title: Improvements relating to Devices for Heating Liquids.
Inventor: CROWDER JAMES
IPC: A47J36/34
Filed: 1917-03-10
Abstract: 111,219. Crowder, J. March 10, 1917. Supports for articles to be heated.-Apparatus for use in heating milk &c. by means of a candle or lamp consists of an upright support a, a base c, and a removable utensil-carrying bracket h. The support a and base c may be rigidly connected, but preferably are connected by hinges b and stays d. The part a, which may consist of two parts hinged together, is provided with a number of staples f or the like into which the legs of the part h are inserted. In a modification, Fig. 5, the part h is removably attached by inserting the legs behind a bar q at the top of the support a, and a lamp &c. bracket c' is adjustably attached to the support a by hooks s which pass over the edges of a plate r attached to the centre of the support a. The bracket is upheld by a strut t. A ring x, Fig. 1, may be suspended from the bracket h by pot-hooks, and this may be used to carry a collapsible cup, for holding glasses or the like and for conserving the heat. It is preferably perforated near the rim as shown. A collapsible wind-shield, Fig. 12, may be suspended by hooks 3 from the staples f or the rest h; it may be made with large mica or glass covered openings. A larger form of bracket h is illustrated.
Patent GB-270791-A (GB)
Title: Light projecting apparatus
IPC: F21S10/00
Filed: 1926-02-08
Abstract: 270,791. Beard, P. W. Feb. 8, 1926. Lenses.-A lantern for stage or display lighting adapted to produce a small area of uniform light free of light source image, or if required larger areas, comprises two lens elements in combination, one consisting of a double concave lens 7 and a plano-convex 6 of short focal length, the other being a plano-convex lens 10 of longer focal length. With the two elements arranged as shown the small area beam is produced. By removing the first element and putting in its place the second, the focus of which then lies behind the light source, the beam of larger area is produced. A fourth convex lens 12, Fig. 3, may be mounted on the first element between the lens and the light source to increase the area of illumination.