baber/WOPTO huggingface dataset:
Patent GB-616273-A (GB)
Title: Improvements in production of stereoscopic images
Filed: 1945-11-12
Abstract: 616,273. Television. SCOPHONY, Ltd. Nov. 12, 1945, No. 30247. Convention date, Nov. 17, 1944. [Class 40 (iii)] [Also in Group XX] Left and right eye stereoscopic images are produced successively, the light from successive images being circularly polarised in opposite directions. In the television receiver shown in Fig. 3, the images appear successively on the screen of the cathode-ray tube 20 and are projected on to the screen 29 by a lens 30. Oppositely circularly polarising screens are moved successively into the light path in synchronism with the image change, being mounted in a rotating disc 21. The projected pictures are viewed through spectacles with oppositely circularly polarising filters. For stereoscopic colour television a sequence of combinations of colour and polarising filters is used, corresponding to the projected sequence of red, green and blue colour components of left and right eye images. In a television transmitter suitable for such a system a shutter disc 15, Fig. 2, has three opaque sectors alternating with colour filters 18B, 18R, 18G. The disc is disposed in front of mirrors 12L, 12R spaced to correspond to the right and left eye viewpoints and inclined at 45 degrees to the viewing direction. Further inclined mirrors and a lens project the colour component images from two viewpoints on to the sensitive surface of the camera pick-up device. For black and white projection the colour filters are omitted. Alternatively the left and right eye pictures may be received side by side on the sensitive surface, or on separate pick-up devices, and scanned alternately. Specifications 486,111, and 519,488, [both in Group XX], are referred to.
Patent GB-630611-A (GB)
Title: Improvements in or relating to methods of polymerising unsaturated monomeric organic materials
IPC: C08F14/06
Filed: 1946-10-10
Abstract: Vinyl or vinylidene chloride, alone, together or with minor amounts of other monomers such as vinyl acetate, propionate or butyrate, or methyl acrylate, methacrylate or ethacrylate, is polymerized in aqueous emulsion, only a part of the emulsifying agent being present initially, the remainder being added continuously or in portions during the polymerization.  The monomeric material may be added at the rate at which polymerization occurs, and the latex may be continuously withdrawn.  Emulsifiers specified are sodium oleate, potassium palmitate, sodium myristate, rosin, dehydrogenated rosin soaps, hymolal sulphates, sodium lauryl sulphate, sodium isopropyl naphthalene sulphate, diethylaminoethyloleylamide hydrochloride, trimethylcetylammonium methyl sulphate, and the hydrochlorides of diethylaminoethoxyanilide of oleic acid and of oleylamidoethyldimethylamine.  Potassium persulphate, benzoyl or caprylyl peroxides, sodium perborate and percarbonates, ammonia, sodium bicarbonate or acid phosphate, or lead acetate may be added.
Patent GB-1012114-A (GB)
Title: Methods of lubricating vitreous fibres
IPC: C03C25/465
Filed: 1963-07-31
Abstract: Vitreous fibres, e.g. quartz and glass, are lubricated by subjecting them in a fluid medium having a dielectric constant greater than 10, e.g. water or acetone, to ultrasonic vibrations and then immersing them in a suspension of a powder of a heat stable dry lubricant which is effective at temperatures up to at least 1000 DEG F., e.g. boran nitride graphite and molybdenum sulphide, in a fluid medium having a dielectric constant less than 10, e.g. normal heptone.  The fibres may also be subjected to ultrasonic vibrations during their treatment with the suspension of the dry lubricant in the fluid medium having a dielectric constant less than 10.
Patent GB-756550-A (GB)
Title: Improvements in or relating to shell moulding
Inventor: BURLEY JOHN CHARLES
IPC: B22C9/12
Filed: 1952-12-01
Abstract: 756,550. Moulding-processes; moulding machines. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Feb. 24, 1954 [Dec. 1, 1952; Dec. 5, 1952; Dec. 5, 1952], Nos. 30347/52, 30885/52 and 30886/52. Class 83(1). In shell-moulding, a pattern is fixedly mounted upon a stationary table and an investment material is fed upon and covers the pattern, electrically-generated heat is transmitted to the investment material to produce a shell upon the pattein, surplus investment material is then removed and curing is effected by continuation of the heating. A pattern 1 incorporating an electric heating element 7 is supported by a table 2 and investment material falls thereon from a hopper 3. Surplus investment material is removed by suction through a hood 9, air withdrawn therefrom being returned, after screening, via a pipe 14 to create turbulence in the hood and assist evacuation. The suction-device and a spray for applying a parting medium are movable into and out of operative position. The heating can be effected by high frequency or induction, an inductance coil being hingedly mounted in proximity to the pattern or by arranging the pattern in an electric circuit, or on a heated table, or adjacent a heating element.
Patent GB-1431836-A (GB)
Title: Brake device
IPC: F16D65/56
Filed: 1973-06-26
Abstract: 1431836 Spot-type disc brakes PONT-A-MOUSSON SA 26 June 1973 [7 July 1972] 30348/73 Addition to 1318914 Heading F2E In a spot-type disc brake having a disc 1, Fig. 2, and comprising at least one support means 19, Fig. 1, secured to a support 30 and having a support surface slightly inclined relative to the adjacent disc surface and at least one wedge-shaped brake pad 5, 6, provided with a plane friction surface 5a parallel to the disc surface and an inclined surface 5b parallel to and co-operating with the inclined support surface of support means 19, the pad 5, 6 being actuated for braking in a direction slightly inclined relative to the disc surface and generally opposed to the normal direction of movement f of the disc, the support 30 is a floating caliper or like component, movable perpendicularly to the disc and carrying, at one side of the disc, the support means 19, the pad 5, 6, and actuating means 9 to 13, and at the other side of the disc, a pad 32 whose friction surface is parallel to the disc. As shown the caliper 30 has ears 29, Fig. 2, slidable on pins 28 carried by a bracket-plate 3 secured to a vehicle chassis (not shown). Also a wear-compensating device 15, 26, 27, preferably as in the main Specification and including a screw-and-nut assembly inside a support block 15, Fig. 1, and operated by a pawl- and-ratchet mechanism 27, 26, may be provided. As shown the axis X-X of block 15 and the axis Z-Z of the reaction block 33 carrying pad 32 meet in the median plane P-P of disc 1. To apply the brake, cylinder 13 is pressurized, whereupon lever 9 is pivoted clockwise about pivot 10. On discharging cylinder 13, the spring therein restores pad 5, 6, while the caliper is elastically restored by means not shown.
Patent GB-832110-A (GB)
Title: Improvements in or relating to cable drums and the like
Inventor: JOHNSON DOUGLAS NORMAN
IPC: B65H75/14
Filed: 1957-09-27
Abstract: 832,110. Hose &c. reels. FORGE CRAFT Ltd. Sept. 26, 1958 [Sept. 27, 1957], No. 30369/57. Class 99(2). A drum for winding material, e.g. cables or hoses, thereon comprises parallel, metal side members 11 secured by tie-rods 16, the inner surfaces of the members 11 being formed with corresponding annular grooves 21 disposed radially outwardly of the tie-rods 16 for the reception of opposite ends of wooden battens 22 which form a core of the drum. As shown, each member 11 includes a hub 12 and a peripheral tubular element 13 with spokes 14 secured there-between, an annular metal sheet 15 on one side of the member 11 being welded to the hub 12 and element 13. Alternatively a metal sheet may be provided on each side of the member 11. The battens 22 are inserted into the grooves 21 from outside the members 11 through an aperture 23 formed in a base part of one of the grooves, the dimensions of the battens being such that the final batten when inserted is disposed opposite the aperture 23 and is secured in position by a cover plate. Stops may be provided in the grooves 21 to limit the circumferential movement of the battens. A further layer of battens may be inserted in grooves adjacent the outer edges of members 11 to provide lagging, covering or retaining means for material wound on the drum.
Patent GB-785787-A (GB)
Title: Improvements in and relating to the construction of the walls of buildings
IPC: E04B2/20
Filed: 1953-11-04
Abstract: 785,787. Walls. BRUCE, R. Jan. 13, 1955 [Nov. 4, 1953], No. 30449/53. Classes 20(4) and 87(1) In building walls formed of pre-formed gypsum panels 18, Fig. 1, which do not require a plaster surface, a bed of gypsum 22 is introduced into an upper floor or roof and into upper cavities formed in the panels and a further bed of gypsum 23 is introduced into the channel 11 of a supporting runner 10 and into lower cavities formed in the panels. As shown the runner 10 is supported on brickwork 12 and an upper runner 14 is secured between the joists 13, the panels 18 being so positioned as to leave a gap between runner 14 and the upper ends of the panels which is equal to the thickness of plasterboard 21 forming the ceiling. The sides of the gap are pointed at 21a and then gypsum is poured through holes 16 in runners 14 so that it penetrates into cavities in the tops of panels 18, passes through grooves in the vertical edges of the panels and enters lower cavities in the panels and the channel 11. A wall may then be formed in the storey above in a similar manner, the lower runners 25 of the upper storey being supported by dwangs 17 which are spaced apart between joints 13 and rest on the runners 14. Each panel 18 has an interior of honeycomb formation, Fig. 3, and along the top and bottom thereof a series of aligned portholes 19 communicate with a series of upper and lower pockets 20 formed by the honeycomb interior.
Patent GB-1278254-A (GB)
Title: Improvements in or relating to forming spherical bodies by pressing powder
Inventor: ALLSOPP PETER JAMES
IPC: B22F5/00
Filed: 1968-06-26
Abstract: 1278254 Moulding spherical powder bodies UNITED KINGDOM ATOMIC ENERGY AUTHORITY 19 Sept 1969 [26 June 1968] 30497/68 Heading B5A In the compression moulding of spherical bodies from powders, e.g. of sinterable UO 2  spherical bodies, between two opposed relatively movable members each whereof has a hemispherical body defining concavity, uneven compaction is avoided by providing at least one of the members with a chamfer externally of the concavity and directed away from an opposed surface of the other member surrounding the concavity whereby, as the members move together, the powder flows outwardly of the cavity into a bounded region and is progressively compacted between the chamfer and the opposed surface. In the Fig. 2 embodiment, a sphere 18 is compacted between a stationary lower die 11 and an upper punch 9, provided with the chamfer 14, which is displaced theretowards through the powder 21 located in a bounded region 16 defined within a member 15. After removal of the punch 9, the sphere 18 is separated from the surrounding progressively compacted powder 17 by upward displacement of a die ejector 13, whereafter the member 15 is displaced laterally of the die 11 for ejection therefrom of the sphere 18 and compacted powder 17, by a downwardly movable ejector. The flash surrounding the sphere is removed by tumbling. In other embodiments, the chamfer may alternatively be provided on the stationary die, or on both the punch and on the die which is also provided with an ejector (not shown) for the progressively compacted material.
Patent GB-185049-A (GB)
Title: Pudding cloth
IPC: A47J43/20
Filed: 1921-12-05
Abstract: 185,049. Lovett, H. Dec. 5, 1921. Pudding-cloths.-A pudding-cloth consists of a circular piece of fabric, and two crossed fabric handles C secured to the hemmed edge, eyelet holes B being punched around the edge and at the extremities of the handles to receive two tapes A, the free ends of which are situated at the extremities of one handle.
Patent GB-281631-A (GB)
Title: Improvements in and relating to internal combustion engines
IPC: F02M3/12
Filed: 1927-11-14
Abstract: 281,631. Barbarou, M. J. B. Dec. 6, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Spray carburettors.-The charge is supplied under pressure by a fan A situated between the carburettor B and the engine, the throttle valve D being situated on the engine side of the fan. The fan is driven from the engine crank-shaft, and the carburettor may be mounted at the lower part of the crank-case. The slow-running nozzle F is situated adjacent the edge of the throttle valve and is supplied with fuel by a tube E dipping into a well forming part of the float chamber. A receptacle G provided on the tube E serves to store fuel to facilitate acceleration.
Patent GB-599421-A (GB)
Title: Improvements in or relating to enclosed electric switchgear
IPC: H01H9/16
Filed: 1945-11-16
Abstract: 599,421. Switchgear structures. NAAMLOOZE VENNOOTSCHAP FABRIEK VAN ELECTRISCHE APPARATEN VOORHEEN F. HAZEMEIJER & CO. Nov. 16, 1945, No. 30740. Convention date, July 9, 1943. [Class 38(v)] In enclosed switchgear the switch-positions are indicated by optically projecting the movable contacts on to an indicating- device, or on to a photo-electric cell which may control the indicating - device. As shown, a ground-glass screen 19, a projection-lamp 15, and a lens 17, are mounted on a plate 14, and the image 21 of the movable-contact 20 is reflected on to the screen. Indicators 23, 24, such as neontubes or L.T. lamps energised through a transformer, may be connected between. condenser-type bushings and earth, so as to indicate whether the contacts are " live. " In Fig. 1 (not shown), the lamp and screen are separate parts. The positions of a number of switches may be projected on to a circuit-diagram.
Patent GB-1305595-A (GB)
IPC: B01J13/02
Filed: 1970-06-25
Abstract: 1305595 Polymer/liquid crystal compositions F HOFFMANN-LA ROCHE & CO AG 25 June 1970 [30 June 1969] 30794/70 Heading C3P [Also in Divisions C4 and G1] A film-forming cream suitable for use in thermography and thermometry comprises as the essential ingredients, water, a stable cholesteric liquid crystal-containing composition, and a water-soluble film-forming polymer. A black colouring agent such as carbon or a black dye may also be present. Preferred amounts of the components are, based on the cream, 5-15% by wt. of the choleateric liquid crystal-containing composition, 10-20% by wt. of the polymer and, if present, 2-6% by wt. carbon black. The preferred film-forming polymer is polyvinyl alcohol, and the cholesteric liquid crystal composition is preferably in a microencapsulated form. The cream may be coated on a substrate and dried, and used to show up temperature variations or patterns on or in the surface of the substrate owing to the colour changes that take place. The compositions are particularly useful for the location of blood vessels and malignant growths when they are applied to the human skin. An example is given in which the liquid crystal composition is micro-encapsulated and contains cholesteryl nonanoate, cholesteryl oleyl carbonate and cholesteryl benzoate.
Patent GB-418868-A (GB)
Title: Improvements in or relating to grinding or abrading machines
IPC: B24B53/053
Filed: 1933-11-06
Abstract: 418,868. Grinding. AKT.-GES. F. WUNDERLI MASCHINENFABRIK, Uster, Switzerland. Nov. 6, 1933, No. 30831. Convention date, Nov. 4, 1932. [Classes 60 and 124.] In a grinding-machine comprising a grinding- wheel 2 and a frame 1, a device is provided whereby a piece of work, or a trueing-tool may be moved across the operative surface of the wheel. The device comprises two parallel leaf springs 4, 5 secured to a plate 3 adapted to be screwed on the frame and carrying a member 6 on which is pivoted at 8 an elbow lever 7 supporting a trueing-tool 9 and adjustable by a screw 10 ; in place of the trueing-tool, a workholder may be secured to the member 6. In operation, the tool 9 or work-holder is moved across the wheel. In a modification, for operation with a cup-shaped grinding-wheel, the member 6 supports a table on horizontal pivots parallel to the flat face of the wheel and adjustable about the pivots by worm gearing ; the trueing-tool or the work is supported by the table. In a further modification, the springs are replaced by parallel pivoted links connected by a transverse link and acted upon by springs tending to hold the parallel links in central position.
Patent GB-655567-A (GB)
Title: Improvements in or relating to the manufacture of thermionic valves
Inventor: GOULDING FRANCIS ADOLPHUS
IPC: H01J1/18
Filed: 1947-11-20
Abstract: 655,567. Thermionic valves. HIVAC, Ltd. Nov. 20, 1947, No. 30855. [Class 39 (i)] A method of mounting a filament in a thermionic valve comprises the steps of providing a substantially U - shaped metal frame, securing one end of a filament-tensioning spring at a point near to one end of one side limb of said frame, securing a filament wire between the other end of said spring and a point at or near to the opposite end of the other side limb of said frame, mounting such frame and attached filament wire in appropriate relationship to the other valve electrodes and then severing said frame intermediate the attachment points of said filament wire and said spring and using the separated frame parts as conductors for effecting electrical connection to the opposite ends of the filament wire. The frame consists of a sheet nickel or other suitable metal stamping 10 having one limb 12 provided with an extension lug 11 which is bent at right angles to form a platform to which a spring 13 is attached as by spot-welding 14. The other limb 15 serves to equalize the thickness of the sub-assembly when mounted in stacked relationship with the other electrodes of a valve of the kind described in Specification 655,568. The filament wire 21, of nickel alloy, tungsten or other suitable metal, and preferably coated with electron-emissive material is secured to metal tags 22, 23 to facilitate handling, and said tags are attached as shown to the frame 10 and to the spring 13. The platform lug 11 and the spring 13 are initially flat, but after the attachment of the filament tag 23 are bent downwardly to tension the filament wire. After the whole stack of electrodes has been suitably clamped, the lower end of the frame 10, which projects beyond the edge of the stack, the position of which is indicated by the dotted lines 24, is cut off along the line L-L, and connection leads attached to the two protruding ends of the separated frame parts. Specifications 619,136 and 619,771, also are referred to. The Provisional Specification refers also to Specification 655,566.
Patent GB-634652-A (GB)
Title: Improvements in or relating to television and like pick-up tubes
IPC: C25B13/08
Filed: 1946-10-17
Abstract: 634,652. Electron image tubes. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Oct. 17, 1946, No. 30974. Convention date, Nov. 28, 1945. [Class 39 (i)] In an orthicon tube, shading due to non- uniform landing of the beam on the target 3 is minimized by balancing the behind motion of the electron produced by the deflection coils 12 against the behind motion produced by the decelerating electrode 26. This is achieved in Fig. 4 by mounting the deflection coils on a rack 28 operated by a pinion 29 so that the position of the coils can be varied. In this way behind motion due to the non-homogensity of the deflecting field can be corrected ; behind motion due to misalignment of the electrode is corrected by the coil 14 as described in Specification 616,700. The decelerating electrode 26 may be in the form of a ring, as in Fig. 4, or in the form of a grid, Fig. 6 (not shown). Specification 634,639 also is referred to.
Patent GB-1413723-A (GB)
Title: Inspection of semiconductor bodies
IPC: G01N21/95
Filed: 1973-06-29
Abstract: 1413723 Investigating semi-conductor material using a detector constructed of that material INTERNATIONAL BUSINESS MACHINES CORP 29 June 1973 [3 July 1972] 31007/73 Heading G1A In a method or apparatus for investigating semi-conductor material for impurity regions, polychromatic radiation is reflected off or transmitted through the material and the resulting radiation is received on a detector(s) made of the semi-conductor material being investigated. In Fig. 1 the semi-conductor material 10 is illuminated by a tungsten filament lamp 16 and the radiation passing through is focused and magnified by an optical microscope-type lens system on to a video detector 36 comprising an array of photo-diodes each consisting of small regions of P-type material on an N-type substrate. An apertured layer 44, of say SiO 2 , is deposited on the rear surface of the substrate, so that an electron beam 46 scanning the rear surface of the substrate is able to activate each photo-diode in turn, thereby providing a video signal output which may be supplied to a T.V. monitor. As an alternative to the video detector 36 the description refers to moving either a single small detector to scan the image of the material 10, or moving the material 10 keeping a single small detector stationary thereby causing an effective scan of the material by the small detector. The theory behind the reason for the selection of detectors of the same material as the investigated object is explained in the description with graphs.
Patent GB-218921-A (GB)
Title: Improvements in snow loading devices for rail or road vehicles
IPC: E01H5/06
Filed: 1923-12-10
Abstract: 218,921. Schmitt, A. r. A. Dec. 10, 1923. Vehicle fittings and attachments.-An inclined trough 1, 2 supported in a frame 4 having runners 3 or wheels, is pushed into snow by backing vehicles against it in succession so that the snow mounts the trough and is loaded on to the vehicles. The frame is fitted with buffers &c. 9 and with projections 10 which pass under the vehicle body and keep the frame from rising. A heater 5 with flues 6 may be fitted under the trough. The device may be used on railroads and tramways, as well as on ordinary roads.
Patent GB-249234-A (GB)
Title: Improvements in intervalve couplings for use in radio circuits
IPC: H01F19/02
Filed: 1924-12-29
Abstract: 249,234. M.-L. Magneto Syndicate, Ltd., and Morris, D. K. Dec. 29, 1924. Transformers. - In a low frequency valve coupling the resistance 4, condenser 7, and autotransformer may form constructionally a single unit, Fig. 3, designed somewhat similarly to that described in Specification 208,895. The iron core 22 carrying the windings 11 is gripped between a moulded cover 20 carrying terminal screws 21 and a base 15 by screws 19 whose heads engage an insulating plate 17 carrying the condenser and' resistance. The space below the plate 17 may be closed by a plate 25 which is kept in place by a split spring ring 27.