baber/WOPTO huggingface dataset:
Patent GB-203015-A (GB)
Title: Improvements in or relating to extracing and refining metals and alloys
IPC: C21C7/00
Filed: 1922-04-25
Abstract: 203,015. Saltrick, W. R. April 25, 1922. Alloys; dry process of extracting and refining chromium and other metals. - Iron alloys of chromium, tungsten, molybdenum, vanadium, and manganese, which have been prepared under such conditions as to contain sufficient silicon to be low in carbon, are refined by treatment in a furnace with an ore or compound of one of the constituent metals, e.g. chromite, and also a more active oxidizing agent containing combined oxygen, e.g. a blast containing superheated steam or carbon dioxide, or solid reagents such as chromates or iron oxide. For example, an ironchromium alloy may be made for melting chromite with carbon and silica, or by reducing chromite with carbon and adding silicon, and the fused product may be treated first with a chromite slag and then with a slag containing a salt or compound of chromic acid; or more active oxidizing agents may be injected into or through the molten bath. Molten steel, or ferro-silicon or other additions, may be added to the bath to form part of the charge to be refined. In a further method, a high-silicon alloy is mixed with more ore and added to molten steel, the slag first formed being removed and replaced by the more active oxidizing agents. The Provisional Specifications refer also to the production of the metals chromium, tungsten, molybdenum, vanadium, and manganese. Specifications 202,345, 202,664, and 203,728 are referred to.
Patent GB-1434164-A (GB)
Title: Liquid crystal display device
IPC: G02F1/133
Filed: 1974-03-15
Abstract: 1434164 Modulating light SUWA SEIKOSHA KK 15 March 1974 [30 March 1973] 11652/74 Heading H4F In a liquid crystal display device if the type comprising a layer of nematic material having a positive dielectric anisotropy between transparent electrodes, and wherein the neniatic alignment at one electrode is at 90 degrees to tha at the other electrode, to provide an optical activity which is destroyed in the presence of an electric field, the layer may contain domains with twists of opposite hand which may be observable between polarizers. It is said that the nematic molecules may align with or against a predetermined direction at each electrode, e.g. the direction in which an electrode has been rubbed, and the potential energy for left and right hand twists is the same. A single domain structure compatible with visibility of display is favoured if the twist angle is 65-89 degrees or 91-115 degrees, particularly for materials whose potential energy respectively increases or decreases with twist angle. Alternatively, or in addition, the device may include a filling and a venting aperture, joined by a line which is at an angle to the nematic alignment at each plate, so that molecular alignment during flow of thenematic material tends to produce a single domain.
Patent GB-475736-A (GB)
Title: Improvements in or relating to the production and use of bodies such as casts and moulds shaped in accordance with the shape of an article
IPC: A43B7/28
Filed: 1936-04-24
Abstract: 475,736. Casting or forming reproductions of surfaces or articles. BRITISH UNITED SHOE MACHINERY CO., Ltd. (United Shoe Machinery Corporation) April 24, 1936, No. 11668. [Class 87 (ii)] [Also in Group XV] In forming a cast of an article, such as a foot, or in retaining an impression of the shape of a surface in a mobile medium, an impression is made in a mass of strongly magnetizable particles such as steel balls 90, a magnetic field is applied to cause the particles to remain in their impressed condition, and a cast is made in the impression so formed. The balls 90 are held on an adjustable support 35 in a container 10 mounted over an electromagnet 20. Before casting, the impression is lined with a sheet 94 of rubber or other stretchable material. The cast may be made in plaster of Paris or other plastic material. A cavity may be formed in the cast by a spirit level 96 so that the natural position of the cast can be subsequently reproduced by placing a level in the cavity and adjusting the cast until the cavity is horizontal. The support 35 may comprise a fixed inclined section 36, a pivoted middle section 42 and a horizontal section 62. The section 42 is pivoted on trunnions 44 and is pivoted to the section 62. The section 42 is formed with depending ears 48 engaging a link 52 connected to a bolt 53 which is engaged by a depending arm 56 pivoted on trunnions 58 and pivotally supporting the section 62. The height of the section 62 and consequently the inclination of the section 42 is adjusted by moving the bolt 53 by a screw-threaded shaft 74 pivotally mounted in a bracket 78 and provided with a hand wheel 88. The side walls 12 of the container are of iron, steel, or other strongly magnetizable material and are mounted on, or are elongations of, the cores of the electromagnet. The end walls and other parts may be of relatively non-magnetizable material such as brass or aluminium.
Patent GB-540194-A (GB)
Title: Improvements in or relating to laminated or leaf springs for vehicles
IPC: B60G11/10
Filed: 1940-07-19
Abstract: 540,194. Laminated spring suspensions. STIRLING, C., HODGSON, A., and FOX & CO., Ltd., S. July 19, 1940, No. 11878. [Class 108 (iii)] Laminated springs are coupled to a vehicle chassis so as to permit pivotal action of the spring in two places by an intermediate member mounted between two levers of the spring so as to pivot in bearings grooved in a U-shaped part at the end of one of the leaves, the other leaf serving to hold it in position. As shown, the intermediate body 13 has trunnions 10 which are held against semi-cylindrical ends of slots 8 formed in the U-shaped and 7 of a leaf 5, being held therein by the leaf 11 engaging a cylindrical part of the member 13 which is provided with an aperture 15 transverse to the trunnions to receive bearing bushes 16 for a shackle pin serving for pivotal connection to the chassis.
Patent GB-1144527-A (GB)
Title: A flash gun for expendable flashbulbs
IPC: G03B7/16
Filed: 1967-03-14
Abstract: 1,144,527. Photographic flash-gun. PRONTOR-WERK ALFRED GAUTHIER G.m.b.H. March 14, 1967 [March 18, 1966], No. 11879/67. Heading G2A. Photographic flash-gun for use with expendable flash-bulbs has, in front of a bulb in the firing position, a screen which is electronically closed to prevent further illumination of the subject, when the latter has been sufficiently illuminated for a correct photographic exposure as determined by a photo-resistor R4. The screen may comprise a pair of flaps 7, 8, or a series of louvre-like pivotally mounted blades, which are closed when a spring-loaded cammed lever (13) or (32) is electromagnetically released for rotation. The flash-gun may take either an individual flashbulb 6 or a flash-cube (25). After firing, lever (13) or (32) is recocked and the screen re-opened on ejecting the used flash-bulb 6 by depressing a knob (22) or on manually rotating through 90 degrees a plate (27) in which a flash-cube (25) is mounted. Film sensitivity and aperture values set on the camera used in conjunction with the gun may be taken into account by partially masking photo-resistor R4 by a slit diaphragm 45 and a grey wedge 47 respectively. The electronic circuit may be provided with an over-ride which closes the screen after a predetermined time if it has not already been closed, and with a manual over-ride.
Patent GB-539061-A (GB)
Title: Improvements in or relating to locating pins or the like particularly for temporarily holding perforated plates to be riveted
IPC: B25B31/00
Filed: 1940-07-25
Abstract: 539,061. Clamps. ODDIE, F. A. July 25, 1940, No. 12140. [Class 44] [Also in Group XXII] A device for clamping plates is bent up from a single piece of spring wire which may be of halfround section for use in round holes. The loops B<1>, B<2> on release force the pointed end C<1> through the hole, displacing the hook end A<1> laterally and drawing it into engagement with the under side of the plates. A separate coiled spring D acts as a guide for the legs of the device and when closed to its solid height limits the penetration by the pointed end. The end A<1> may be shaped to provide cutting edges A<2>, A<3>, Figs. 5 and 6, to reamer the hole and countersink the underside.
Patent GB-513884-A (GB)
Title: Improvements in the manufacture of abrasive coated articles
Filed: 1938-04-22
Abstract: 513,884. Abrasive coated articles. TENNANT, W. J. (Carborundum Co.). April 22, 1938, No. 12165. [Class 60] [Also in Group IV] Abrasive-coated articles are made by securing the abrasive grains to the backing by an adhesive applied as an aqueous dispersion of a solid finely-divided synthetic binding material, e.g., synthetic resin or cellulose derivative, and applying a solvent therefor to increase its adhesiveness on removal of the water. The solvent may be employed in the aqueous dispersion, e.g., an aqueous dispersion of a polyvinyl resin containing dichloroethyl ether, or a suspension of powdered A-stage phenol-aldehyde resin in water containing furfural or furfuryl alcohol may be used. Alternatively, the backing may be moistened with the solvent before application of the aqueous dispersion; the abrasive grains may be wetter by the solvent before application to the backing; or the solvent may be applied after the abrasive grains have been deposited. The solvent is finally removed or, e.g., in the case when furfural is used with phenolic resins, is caused to react. A sizing coating of adhesive may be applied as an aqueous dispersion or as powder before or after removal of the water. Inert fillers such as bentonite or other clay may be added to the dispersion. Specifications 457,963 and 462,697 are referred to.
Patent GB-138790-A (GB)
Title: Improvements relating to ventilators
IPC: B61D27/00
Filed: 1919-05-15
Abstract: 138,790. Nuttall, S. May 15, 1919. Ven,tilating-shaft tops and like ventilators.- A railway-carriage or like ventilator comprises a pipe a placed longitudinally with respect to the vehicle, a pipe b connecting to the interior of the vehicle and projecting into the interior of the pipe a, where it forms inclined ports, and a duplex pivoted wind-actuated valve d which closes the port facing the direction of motion. As shown in Fig. 3, air ways are left at the sides of the portion of the tube b which projects into a.
Patent GB-332546-A (GB)
Title: Improvements in or relating to formers for yarn or like packages
IPC: B65H75/10
Filed: 1929-04-19
Abstract: 332,546. Nasmith, F., and Jones, H. C. April 19, 1929. Bobbins. - A former for yarn &c., particularly for u s e w i t h knitting- machines, is shaped as a frustum of a small angled cone, the diameter of its smaller end being at least a quarter of the length of the former. The surface is grooved, or roughened to prevent slipping. A cylindrical axial bore with metal bushes 17, 18 receives the spindle which has lugs engaging metal lined recesses 19 in the base of the former. Specification 316,417 is referred to.
Patent GB-542882-A (GB)
Title: Improvements relating to roller mills for cereal grain
IPC: B02C4/38
Filed: 1940-07-29
Abstract: 542,882. Roller mills for cereal grain. ROBINSON & SON, Ltd.. T., and ROBINSON, C. S. July 29, 1940, No. 12284. [Class 59] When the feed fails, a spring (not shown) turns the feed plate a about its pivot b, thereby raising a lever c from the position shown in Fig. 5 to that shown in Fig. 6, in which a freely swinging link e is reciprocated by a continuouslyrotating eccentric j. A pawl i pivoted on the link g thereby turns a ratchet-wheel n which, via shaft m, chain wheel o, chain p, worm s, and stationary worm wheel t, moves axially to the right a shaft u which, via arm v and eccentric w, lowers the bottom roll. Movement of the shaft u to the right turns a bell-crank lever y to raise the eccentric j out of contact with the link e into the neutral position shown in Fig. 1. When the feed is resumed the plate a and lever c are depressed and a second freely swinging link d is engaged by the rotating eccentric and, via pawl h and ratchet wheel k, effects reversal of the movements above described, the eccentric j being lowered to the neutral position shown in Fig. 5. The links d and e are returned to the vertical position by springs (not shown).
Patent GB-562172-A (GB)
Title: Improvements in or relating to internal gauges
IPC: G01B5/08
Filed: 1942-09-02
Abstract: 562,172. Internal gauges. DICKINSON, W. Sept. 2, 1942, No. 12370. [Class 106 (ii)] An internal gauge comprises a tubular gauge bar a divided along its exterior surface and having adjustable along it a disc c, one end of said bar carrying guideways for a radiallymovable gauging member n<1> or members i and the other carrying a disc f provided with a fiduciary mark g, a rod d rotatable within the tubular bar a and carrying at one end a, disc e divided to cooperate with the disc g, and a cam plate m at the other end of the rod provided with a series of flats and cam surfaces adapted to engage the gauging members and press them outwards in such a manner that the diameter of the circle formed by the gauging members is determinedly less than the measurement for which the gauge is intended, when the gauging members engage the centres of the flats, or one end of the cam surfaces, determinedly greater at the other end of the cam surface, and equal to the standard measurement in the centre of the cam surfaces.
Patent GB-286505-A (GB)
Title: Method of cold glazing and providing tiles and the like with a design
IPC: B44C1/20
Filed: 1927-05-09
Abstract: 286,505. Steger, M. Pollak.-. May 9, 1927. Ornamenting. - In a continuous process for ornamenting and cold-glazing the surfaces of tiles and the like, the roughened surface of the article is treated with a slimy mass approximating to the design to be produced, then vibrated to distribute the mass and thus form the exact design, for example a marbled pattern, after which the surface is pressed or cross-rolled and finally planed or scraped to remove the surface layer. Thin hygroscopic material may be laid upon the glaze to absorb moisture during the rolling operation. The scrapings may be used to form the surface of other articles of different quality by a similar process.
Patent GB-1142137-A (GB)
Title: Improvements in and relating to headlamp assemblies for motor vehicles
IPC: B60Q1/068
Filed: 1966-03-22
Abstract: 1,142,137. Vehicle lamps. ROBERT BOSCH G.m.b.H. 22 March, 1966 [25 March, 1965], No. 12428/66. Heading F4R. A lighting unit for motor vehicles consist of at least one headlamp 1 which may be a sealed beam unit, having a reflector 3 and a cover glass 2 mounted behind a translucent screen 14, either the glass 2 or the screen 14 being corrugated in the areas through which the light passes. The screen 14 may be plain in the light passing areas and provided with ornamental corrugations in the other areas. Two headlamps may be arranged behind a common screen, one of which produces a dipped beam, a similar pair being arranged on the opposite side of the vehicle. The screen 14 may be fixed or may be adjustable with the headlamps by means of lugs mounted on the glass 2 and abutting lugs on the screen. Alternatively, adjustment of the headlamps may be effected by adjusting the screen.
Patent GB-559595-A (GB)
Title: Improvements in or relating to gauging or testing machines
IPC: B07C5/06
Filed: 1942-09-03
Abstract: 559,595. Gauging machines. PEMBROKE, G. F., and MOLINS MACHINE CO., Ltd. Sept. 3, 1942, No. 12459. [Class 106 (ii)] A gauging or testing' machine comprises feeding means movable from one position (e.g. a gauging station) to another position (e.g. another gauging position), and means for varying the path of the feeding means according to the result of a gauging or testing operation at the first said position whereby an article found correct at the first position is delivered to the second position and defective articles are delivered to another position. As shown in a machine for gauging cartridge cases, feeding arms 8 convey correct cases along path B, and defective cases along path C. The machine comprises a number of main shafts 6 side by side, interspaced with grooved supports 1, 2 comprising gauging stations. A gauge 36, carried by a bracket 32, Fig. 2, is applied to successive cartridge cases under the influence of springs 34 and an adjustable camcontrolled bellcrank 43. The bracket 32 carries a magnet 31 which is therefore positioned according to the length of the cartridge case, whereby if the length varies from standard, one or other of two armatures 27, Fig. 1, rotated by shaft 28 once each cycle, is attracted in the manner described in Specification 544,478. If the length is within the prescribed limits, neither armature is attracted, and the feeding arms 8, pivoted to a radial arm 7 and controlled by a follower 11 and a fixed cam 14. follows the path B to deposit the tested cartridge case on the next support 2. If the length is incorrect, the attracted armature 27 strikes an associated pin 49 to displace a bell crank lever 52 from engagement with a square rod 53 on the associated one of two levers 54 which is subjected to the influence of a spring 22, once each cycle under the control of a cam 58. A projection 59 on the lever 54 presses on a lever 19 to move a cam segment 17 into the path of the follower 11 so that the conveyer arm follows the path C and the defective cartridge case is conveyed to chute 24 or 25 according to whether a flap 23 controlled by the lever 54 corresponding to oversize. has been operated or not. The gap between the cam surfaces of the segment 17 and the disc 14 is bridged by a further segment 62 which is easily lifted by the follower when running on cam 14 only. In a modified cam arrangement, Fig. 4, a quadrant-shaped cam piece 64 is controlled by the lever 54. Specification 547,947, [Group XXX], also is referred to.
Patent GB-767570-A (GB)
Title: Improvements in or relating to television and like camera tube arrangements
Inventor: BANKS GEORGE BALDWIN
IPC: H01J31/36
Filed: 1954-04-29
Abstract: 767,570. Television pick-up tubes. ENGLISH ELECTRIC VALVE CO., Ltd. Jan. 4, 1955 [April 29, 1954], No. 12478/54. Class 39(1). In an image orthicon or similar tube in which a positive charge image is built up on a charge storage screen comprising a semi-conductive layer 5, Fig. 4, and a closely adjacent grid or mesh 6 through which the photoelectrons pass. by photoelectrons from a photocathode 4, an additional electrode 27 positive to the target is provided for collecting secondary electrons generated by the photoelectrons at screen areas corresponding to high lights of the image, and so preventing return of the secondary electrons and consequentfrecondary electron re-distribution over the surface of the screen which would give rise to so called " black halo " effect i.e. cark areas surrounding the high lights in the picture. The additional electrode 27 should be 30-60 volts positive with respect to the screen mesh 6 in order to collect secondaries and prevent them from returning to screen 5, and may be a flat mesh, Fig. 2 (not shown), a ring, Fig. 3, (not shown), or as shown a cup-shaped electrode with a mesh 27a or hole at its bottom to allow the passage of photoelectrons. The.mesh 6 is not positive enough to prevent secondaries from returning to the screen high light areas but collects secondaries emitted by the other screen areas. The mesh 6 is 500 volts positive with respect to photocathode 4 and the photoelectrons may be focussed by the magnetic field of a coil. The scanning beam is reduced to zero velocity in front of screen 5 and returns to output multiplier 3 around the gun. If the additional electrode 27 is a mesh it is set well back from the screen 5 so as not to cast a shadow thereon.
Patent GB-543582-A (GB)
Title: Preserving foodstuffs, beverages and other substances susceptible to rope and/or mold
IPC: A21D2/14
Filed: 1940-08-02
Abstract: 543,582. Preserving food; sterilizing liquids; preserving animal and vegetable substances; food preparations; proofing materials. TRIGGS, W. W. (Stein Hall Manufacturing Co.). Aug. 2, 1940, No. 12526. [Class 49] [Also in Group VIII] Sodium diacetate or other acetate salt containing combined but undissociated acetic acid in the molecule is: (a) added to dough compositions for making bread, cakes, biscuits, pies etc.; (b) in admixture with locust bean gum, agar agar, gelatine, starches, dextrines, starch gums or other edible adhesive material applied as by spraying or dipping to sausages; (c) mixed with the sausage filling; and (d) incorporated with, or applied to as by spraying or dipping, fruits, paper, textiles, wood, vegetables, leather, milk, beer, butter, cheese, pickles, kraut, jellies, and adhesives such as those made from starches and proteins. When added to dough compositions it produces a whiter crumb colour, having a whitening or bleaching effect on carotin; the whitening effect is increased if the yeast food sold under the Registered Trade Mark "Arkady" is used (a typical "Arkady" composition comprises calcium sulphate, sodium chloride, potassium bromate, flour and water). The (acidic) sodium diacetate tends to aid fermentation caused by diastatic action: for this reason it may be added to the dough in combination with an ingredient comprising a high soluble dextrine, malted cereal flour, unmodified cereal flour, and partly dextrinized cereal flour having its gluten content mellowed as described, for example, in Specification 510,367, [Group V]: the sodiumdiacetate also assists the mellowing action of the gluten modified flour on untreated flour by increasing the hydrating effect, thereby causing the gluten to hold more water and increasing the keeping qualities and softness of the bread. The sodium diacetate may be added at the sponge stage, or the dough stage or both. The sodium diacetate inhibits the growth of rope and mould in and on bread and the other substances mentioned above. Potassium salts containing combined but undissociated acetic acid may be used. Reference is made to the sodium acetate-acetic acid-water systems mentioned by Beilstein, 4th Edition, Volume II, page 107.
Patent GB-514119-A (GB)
Title: Improvements relating to securing devices, particularly for such parts as aircraft cowlings and the like
IPC: E05B63/12
Filed: 1938-04-27
Abstract: 514,119. Fastenings. DE HAVILLAND AIRCRAFT CO., Ltd., and THOMAS, F. M. April 27, 1938, No. 12591. [Class 44] A fastening for aircraft cowlings, airscrew spinners &c. comprises a pin 3 on one part engaging a socket 5 on another part, and secured therein by a spring-pressed locking member 8 provided with an inclined surface 8B coacting with a similar surface 4A on the pin to force the latter into the socket. The number 8 is withdrawn from the pin by a rotatable cam 12A engaging a recess 13 therein, and kept in position by a spring ball 14 and set screw 15.