baber/WOPTO huggingface dataset:
Patent GB-486896-A (GB)
Title: Improvements in or relating to apparatus for transmitting images of moving visual phenomena
IPC: H01J31/30
Filed: 1936-12-12
Abstract: 486,896. Television. RADIOAKT.- GES. D. S. LOEWE. Dec. 12, 1936, No. 34186. Convention date, Dec. 12, 1935. [Class 40 (iii)] The periods, for which a light-sensitive storing-electrode 3 is exposed to a moving phenomenon 7 to be transmitted, is so reduced that movements in the image, which occur during the exposure, are insufficient to result in blurring. The elementary charges on the storing- electrode are equalized and transmitted by an electronic ray 2 or a beam of light which is scanning those zones of the electrode on which the image is not being projected. A rotating disc 13 with sector-shaped apertures 12 periodically obscures the image. The disc is at a place where a real intermediate image 11 of 7 is formed, and the plane of the disc coincides with that of the intermediate image. The period of rotation of the disc and the image period are equal or in an integral ratio. When the disc has n similar slots, the period of rotation is 1/n of the image-change period. The maximum width of the slots is the height of the intermediate image. The apertures are adjustable singly or in common, or exchangeable discs with apertures of different sizes are used. The rotation and the scanning are synchronized. The disc may be driven at constant speed and produce the framing and line-synchronizing signals, which are also impressed on the transmitted wave. The slot 12 is so displaced relatively to the aperture 15 supplying the framing signal that the completion of the illumination is in advance of the scanning. The electrode may be exposed to light from the phenomenon 7 during the interval occupied by the image change. According to a modification, an electromagnetic or electro-optical light valve cuts off the total cross-section of the light at once and is actuated by the framing signals, Fig. 1 (not shown). Specification 479,551 is referred to.
Patent GB-981641-A (GB)
Title: Production of urea
IPC: C05C9/00
Filed: 1962-09-07
Abstract: A portion of the biuret-enriched liquor produced during the crystallization of urea is recirculated to the confined reaction zone in a process for production of urea which comprises reacting ammonia, carbon dioxide and biuret under urea synthesis conditions.  The preferred mol. ratio of ammonia and carbon dioxide, on a combined basis, to biuret in the biuret containing product of urea, in the urea synthesis step is maintained between 4000 to 12,000: 1.  The detailed description and claims include features such as one or more stages for the recovery of ammonia and carbon dioxide.  Separately or as ammonium carbamate, optionally reforming ammonium carbamate and recirculating it to the urea synthesis zone.  The product may be granulated or shaped under pressure.  A flow sheet (not shown) illustrates the preferred embodiment.  Reference has been directed by the Comptroller to Specification 885,692.
Patent GB-779837-A (GB)
Title: Improvements in or relating to gymnastic apparatus
IPC: A63B9/00
Filed: 1954-11-26
Abstract: 779,837. Gymnastic apparatus. OLYMPIC GYMNASIUM CO., Ltd., and ALLEN, R. R. Nov. 25, 1955 [Nov. 26, 1954], No. 34318/54. Class 132(1). In a gymnastic boom appliance, of the type comprising one or more beams which are slid vertically in two channeled upright supports, one of which is against the wall, by rope and pulley mechanism with one or more counterweights, the track or tracks for the weight or weights is or are offset to one side of the boom. Boxes 13, 14 forming counterweight tracks are adjacent the beam guide channel 11 which has corresponding pairs of holes at intervals to receive pins for supporting the beams at the required heights. A spindle 18 is secured between a bracket 16 fixed to one side of channel 11 near the top and a ferruled recess in the back of channel 11, and spindles 31, 36 and 41, 46 are mounted in boxes 13 and 14. A rope 33 connected at one end to a beam and at its other end to a counterweight in box 13 passes over freely rotatable pulleys 30, 32 on spindles 18, 31. This weight is also connected by a rope 35 passing over pulley 34, across the appliance and over further pulleys on the second support to the other end of the beam. The ends of a second beam are similarly connected by a rope 43 passing over pulleys 40, 42 on spindles 18 and 41 and a rope 45 passing finally over a pulley 44 on spindle 46 to a counterweight in box 14. Each counterweight is slightly lighter than its beam so that the beam rests stably on the supporting pins.
Patent GB-382118-A (GB)
Title: Improvements in self-adjusting brake rods
IPC: B61H15/00
Filed: 1931-12-11
Abstract: 382,118. Compensating for wear in brakes. SOC. G•N•RALE ISOTHERMOS, 12, Rue de la Tour-des-Dames, Paris. Dec. 11, 1931, No. 34360. Convention date, Dec. 16, 1930. [Class 103 (i).] In an automatically-adjustable brake-rod working under compression comprising two aligned rods 1a, 4a, the rod 1a having a screwthread or circular rack 2 engaged by two sets of jaws 5, 12, each confined between a pair of coned rings 7a, 8a and 13a, 15a, the ring 7a being fixed to the rod 4a by a socket 3a, the rod 1a is displaced relatively to the jaws 12 when the ring 15a abuts a stop 21 and the jaws 5 are similarly displaced on release of the brake by the expansion of a compression spring 26, thereby lengthening the brake rod. Each set of jaws comprises four members disposed in cruciform relation around the screw 2. Specification 365,885 is referred to.
Patent GB-282751-A (GB)
Title: Improvements in and relating to pumps
IPC: F04B3/00
Filed: 1927-12-19
Abstract: 282,751. Saussard, L. Dec. 30, 1926, [Convention date]. Revolving-cylinder pumps.-A pump comprises a piston 8 slidably mounted on an inner piston 7 and in a body 9, which is rotated by a ring 21 fixed thereon and provided with a driving gearwheel 22. The rotor is eccentrically mounted on a stationary shaft 2 provided with passages 3, 4 communicating with outlet and inlet passages 5, 6. During the rotation of the body 9, the piston 7 reciprocates in the piston 8 and the latter reciprocates in the body 9, the piston being provided with ports connecting their ends with the passages in the shaft 2. The ring 21 is pressed against a roller 25 which is adjustable by a screw 26 to vary the eccentricity of the rotor and the strokes of the pistons. The ring is provided on its periphery with a number of cams 32 which engage the roller 25 during rotation and vary the eccentricity of the rotor for the' purpose of keeping the delivery constant. The sides of the pistons slide on a pair of discs 10 fixed to the body 9, and the pump is made fluid-tight by washers 13, 14, the washers 14 having sleeves 15 mounted on the shaft. The washers are held in place by flanges 16 provided with sleeves 17 which rotate in bearings carried by arms 18 pivoted on a shaft 20 carried by a fixed frame 1. A clearance is provided between the sleeves 15, 17 to allow for adjustment of the eccentricity of the rotor with respect to the shaft 2. The rotor is pressed against the roller 25 by a spring 28 mounted between the frame 1 and extension 31 of the arms 18. In another form, the shaft 20 is rotated and drives the gear-wheel 22 through a pinion, and the eccentricity of the rotor is adjusted by a screw and nut gear between the frame 1 and the arms 31. The delivery pressure may be further regulated by means of an elastic diaphragm, preferably arranged in the delivery end of the shaft 2.
Patent GB-1192642-A (GB)
Title: Improvements in or relating to Soluble Polyimide Resins
IPC: C08G73/10
Filed: 1967-07-26
Abstract: 1,192,642. Polyimide coatings. MINNESOTA MINING & MFG. CO. 26 July, 1967 [27 July, 1966], No. 34438/67. Headings B2E and B2K. [Also in Division C3] Polyamide acids convertible to polyimides are derived from an aromatic tetracarboxylic anhydride and a diamine of the formula: where An represents unsubstituted aromatic radicals and R<SP>2</SP> is a radical containing at least 2 aromatic rings each of which is attached directly to one of the C atoms shown in the formula. The polyamide-acid may be used conventionally e.g. in the usual solvents for filmforming or varnish compositions or as moulding powders, optionally with fillers, dyes or pigments. The polyimides also are soluble in methylene chloride, tetrahydrofuran and chloroform but not in many common solvents which are specified. The polyimide solution may be used for coatings, impregnating glass or other fibres, laminating sheets or metal cloth or paper, and fabricating filaments, moulded products and self-supporting films. Coatings. In Examples methylene chloride solutions of the polyimide are used to coat aluminium, copper and titanium plates, copper foil and copper and nichrome wire by dipping or casting. For the wire varnishes 1% of chlorobenzene is included in the solution as levelling agent.
Patent GB-345200-A (GB)
Title: Improvements in or relating to roller boxes
IPC: B65D85/672
Filed: 1929-11-12
Abstract: 345,200. Boxes for rolls of fabrics &c. ALDHOUSE, W. S. and ALDHOUSE, C. H., 43, Temple Street, Manchester. Nov. 12, 1929, No. 34440. [Class 18.] A box in which is mounted a roller on which may be wound velvet or other material has a groove or slot 10 formed in its end 9, and this end carries a bearing or socket which comprises a plate 4 bent upwards at its lower edge to form a bearing- plate 7, formed with a bearing slot 5 having a flared entrance 6. The bearing-plate 7 lies either in the groove or slot 10 or flush with the inner side of the box as shown in Fig. 2. Near the upper end of the plate 4 is provided a tongue 8 which lies in the groove or slot 10, and which is displaced by the pivot 11 of the roller 12, as the roller is being pushed into position, but which springs back to its normal position when the roller is supported in the bearing slot 5. The spring tongue 8 may be pressed from the plate 4 or may be riveted thereto.
Patent GB-1002265-A (GB)
Title: Tile products of plastics materials and method of and apparatus for producing such products
IPC: B29C67/24
Filed: 1962-09-10
Abstract: <PICT:1002265/C3/1> <PICT:1002265/C3/2> <PICT:1002265/C3/3> Tiles are made of aggregate material and an epoxy resin.  Examples of suitable aggregate materials, curing agents and epoxy resins are given in the Specification.  The tiles are thermoset, heat being provided by infra-red lamps.
Patent GB-1110951-A (GB)
Title: Method of preparation of ammonium phosphotungstate and product obtained
Inventor: AUBERTIN CHARLES
IPC: B01D15/04
Filed: 1965-08-13
Abstract: Ammonium phosphotungstate is prepared by adding ammonia to an organic solution of phosphotungstic acid, drying and washing the precipitate obtained, and heating at at least 360 DEG  C. for at least 15 hours. The organic solvent may be acetone, ethyl or butyl alcohols or ethers, glycols, hexanone, isoamyl acetate, or dioxan. The ammonia may be dissolved in the same organic solvent, or may be bubbled through the solution of the acid.  Drying may be at 100-200 DEG  C., and washing may be effected with acid e.g. 2N.HNO3, then water and acetone.  The product may be crushed to a mean diameter of 0.13 mm., and used as a cation exchanger for fixing Cs, e.g. in fission products, in acid medium.
Patent GB-448336-A (GB)
Title: Improvements in or relating to tramway rail crossings
IPC: E01B7/28
Filed: 1934-12-05
Abstract: 448,336. Tramway crossings. MORLAND, W. V., 16, Wetherby Road, Leeds. Dec. 5, 1934, No. 34907. [Class 104 (i)] In a tramway crossing of the kind wherein shallow rail grooves on which the wheel flanges run are formed in renewable checks supported on steps &c. in the crossing casting, and run out to normal depth at the ends of the crossing arms, the renewable checks 4 are formed with a part vertical web resting in recesses 3 formed in the crossing 2.
Patent GB-333832-A (GB)
IPC: A24C1/02
Filed: 1929-11-15
Abstract: 333,832. M³l1er, J. C. Nov 15, 1928, [Convention date]. Cigar-making machines.-A quantity of cut tobacco sufficient to form a filler is taken up from a uniform layer by suction apparatus and carried to the moulding position, where it is released by cutting off the suction. Fig. 1 shows means for forming the uniform layer of tobacco. comprising an annular container 1 in which a rake 17, carried by an arm 14, is rotated with its shaft 5, and at the same time is reciprocated radially by an eccentric 21 and gearing 22 - - 27. The floor of the container has a flat raised portion 28, Fig. 3, on which the uniform layer is formed, the rake 17 being lifted to pass over this portion by a cam 11 and lever 8. The charges of tobacco are taken up from the portion 28 by a series of suction heads 31, Fig. 4, projecting radially from a suction pipe 34 which is intermittently rotated by Maltese cross or like gearing. When over the tobacco layer, the suction head is lowered to the position shown in dotted lines, so as to take up a charge of tobacco against a sieve 52. The head is then raised by cam gear 48, 45 and given a partial rotation, during which it passes over a rake, which is both oscillated about the pipe 34 and reciprocated radially. The head is then further rotated into position over a container 68 and the tobacco released. For this purpose, the suction is cut off by a valve 69 rotated by rack and pinion gearing as the head is lowered.
Patent GB-882517-A (GB)
Title: Apparatus for mixing
IPC: B29C48/445
Filed: 1956-11-15
Abstract: 882,517. Mixing and grinding apparatus. FRENKEL, M. S. Nov. 14, 1957 [Nov. 14, 1956; Nov. 28, 1956], Nos. 35015/56 and 36438/56. Classes 59 and 86. [Also in Group XXX] Relates to apparatus for mixing solids, liquids, powders and plastic materials with, if desired, simultaneous grinding, crushing, extruding etc.; also gases. Fig. 1 shows a batch mixer comprising an inner component 1 with a helical thread 12, and an outer component 2 with a thread 13, the screw grooves of the two components varying in cross-section in an opposite and complementary manner; the hands of the threads and the direction of rotation are selected so that the two threads convey in opposite senses. The circular or annular cover may comprise six pivoted segments opening out into an annular ring which forms a discharge channel. Fig. 2 shows an extrusion mixer in which the outer component 2 has a thread 13 of the same hand throughout. Material enters through the funnel 6 and the section 5 of the inner component has a conveying action only. In sections 7 and 8B the thread 12 conveys in the same direction as that of the outer component and the thread grooves vary in complementary fashion so that mixing and conveying take place. In section 8A the hand of the inner thread 12A is reversed to provide additionally intensive mixing, as in the construction of Fig. 1. In a modification, Fig. 3 (not shown) the section 7 is also divided into two parts 7A, 7B of which 7B has a reversed outer thread and 7B, 8B have a restricted flow cross-section. The apparatus of Fig. 4 has two grinding and mixing sections 25, 26 for a first material section 26 being surrounded by a similar section 27 for a second material, the prepared materials being fed into a mixing section 28 similar to the apparatus of Fig. 3. In an alternative arrangement, Fig. 5 (not shown) the two milling sections 31, 32 feed into a central pre-mixing chamber 34 and thence to the mixing section 33 which is coaxial with, and enclosed by, the section 32. The clearance between the components may be adjusted by moving them axially, and passages for a heat exchange medium may be provided.The helical threads may be polished or left as cast, and may have holes or interruptions. Specification 842,692 is referred to.
Patent GB-753438-A (GB)
Title: Device for drying a web-shaped material
IPC: F26B21/00
Filed: 1954-12-03
Abstract: 753,438. Drying webs. MELLBIN, B. F. H. Dec. 3, 1954 [Dec. 5, 1953], No. 35086/54. Class 34(1). In apparatus for drying fabric, paper &c. webs 11 by blowing a gaseous medium through nozzles 35 on both sides of the web and extending transversely thereto, the nozzles being spaced by channels 23 through which the used medium escapes, a screen wall 41 is provided on each side of each nozzle, running along the whole length thereof and projecting farther towards the web path than the nozzle to prevent contact of the web with the nozzles when fed therebetween without tension and without supporting rolls or the like. The nozzles are formed by slits in blast boxes 13 and bent-out edges 37 and the gaseous medium is blown by fans 21 into the boxes 13 via heaters 19 and is recirculated via channels 23.
Patent GB-626203-A (GB)
Title: Improvements in or relating to wire seals particularly for use in incandescent lampsand discharge tubes
IPC: H01J5/32
Filed: 1947-12-31
Abstract: 626,203. Uniting metals to glass. PHILIPS ELECTRICAL Ltd., (formerly PHILIPS LAMPS, Ltd.). Dec. 31, 1947, No. 35190. Convention date, May 27, 1939. [Class 36] A wire 5 of metal having a melting point above 2000 C., for sealing through a vitreous envelope 8 has a layer 6 of quartz or quartz glass sealed on to it, thin in relation to the diameter D of the wire. The limits of thickness are that the wire should be more than .05 mm. diameter, and the layer of quartz not more than .24 mm. in the case of wire thicknesses up to .6 mm., and not more than .24+(D - .6).16 mm. for wires exceeding .6 mm. diameter. Tungsten, molybdenum and tantalum are mentioned as suitable metals, and a formula for molybdenum is also given, the thickness of quartz in this case being less than that for tungsten. A bead 7 of glass may be fused on to the quartz layer 6 between this and the envelope 8.
Patent GB-1386580-A (GB)
Title: Turbine-type flowmeter
IPC: G01F1/115
Filed: 1973-07-24
Abstract: 1386580 Measuring fluid flow-rate electrically TOKICO Ltd 24 July 1973 [27 July 1972 22 Jan 1973] 35217/73 Heading G1N A turbine-type flowmeter comprises a flowmeter outer casing 10, a turbine rotor 15 rotatably supported within the casing and having a plurality of blades 14, a yoke structure 18 having an outer end (that is the upper end as viewed in Figs.1 and 2) part in contact with a permanent magnet 20, a plurality of inner end parts or legs 18a, 18b, and 18c confronting the blade ends, and a shank part carrying a coil 19, the poles of the magnet being disposed on a line extending radially of the rotor. In the embodiment of Fig. (not shown) the yoke structure comprises three yokes (60a, 60b and 60c) of which the cross-sectional area of one yoke is larger than that of the other two so that every third pulse of the output signal is of larger amplitude whereby the output signal frequency can be selected to be f 1  or f 1/3 .
Patent GB-176543-A (GB)
Title: An improved lock
IPC: E05B67/18
Filed: 1920-12-17
Abstract: 176,543. Duncombe, F. Dec. 17, 1920. Keyhole curtains and bands.-The key-barrel D of a lock operated by a flat key is of uniform diameter, and is supported to revolve in the lock casing by depressions in the front and back plates A<1>, A<2> respectively, of the casing. The keybarrel is made from a rod of drawn metal and has a slot cut in to receive the key. Fig. 2 shows the depressions pressed-up in a sheetmetal casing, and Fig. 4 shows the depressions formed in a cast-metal casing.
Patent GB-359261-A (GB)
IPC: H01B1/04
Filed: 1930-11-26
Abstract: 359,261. Switch contacts preventing sparking in switches. BOSCH AKT.- GES., R., 4, Militõrstrasse, Stuttgart, Germanv. Nov. 26, 1930, No. 35550. Convention date, Nov. 28, 1929. [Class 38 (v).] Contacts composed largely or entirely of tungsten carbide are used in switches in which the contacts are immersed in an atmosphere of a carbonaceous gas or vapour.
Patent GB-1315638-A (GB)
Title: Trailer drawbars
IPC: B60D1/167
Filed: 1971-07-29
Abstract: 1315638 Vehicle hitches SLAPVAGNSKOPPLINGAR AB 29 July 1971 [31 July 1970] 35760/71 Heading B7T A trailer drawbar comprises channel section or hollow tubular girders 4, 4 connected in a V-arrangement by braces 6, 8 and adapted to be attached to a trailer by bushings 10 and a towing vehicle by a bushing 12, there extending through each girder a safety flat-bar member 16 having a relatively low lateral stiffness and connected for example by welding between bushing 12 and reinforcing members 14 so that should either girder fail, its function will be taken over by the respective member 16.
Patent GB-1261526-A (GB)
Title: Motion picture projector
Inventor: BUNDSCHUH JOHN JOSEPH
IPC: G03B21/32
Filed: 1968-11-25
Abstract: 1,261,526. Cine projectors. EASTMAN KODAK CO. Nov.25, 1968 [Nov. 24, 1967; May 23, 1968], No.35781/71. Divided out of 1, 261, 525. Heading G2E. A cine projector which receives a film cartridge in a chamber, has a driven spindle 181 axially movable from the retracted position shown to an extended position engaging the film reel within the cartridge. Initially, spindle 181 is retracted until held by latch 209 by manually sliding plate 193 whose finger 201 engages two collars 203, 205 on the spindle. Latch 209 is released to permit extension of spindle 181 by spring 199 when the transversely inserted cartridge trips lever 217 protruding into the chamber.
Patent GB-387094-A (GB)
Title: Improvements in or relating to wearing apparel
IPC: A41F9/02
Filed: 1931-12-28
Abstract: 387,094. Garments. LEWIS & SONS, Ltd., J. B. and WARD, S. E., Haydn Road, Nottingham. Dec. 28, 1931, No. 35803. [Class 141.] In an article of clothing embodying a restraining or supporting band, the band comprises elastic fabric treated with stabilizer rubber latex. In the stocking shown in Fig. 2, a band 3 of knitted fabric has on its outer face stabilized rubber latex which may be applied in the form of diagonal stripes as shown at 4 in Fig. 1. The latex is concealed by the welt 1 when turned down. A band similarly treated may be attached to the top of pyjama trousers or similar articles, the band being folded and sewn to the garment as shown in Fig. 4, so that the diagonal stripes 4 are concealed. The latex may be applied to the fabric by spraying, brushing, or dipping.