baber/WOPTO huggingface dataset:
Patent GB-1511634-A (GB)
Title: Nose clips
IPC: A62B9/06
Filed: 1977-03-24
Abstract: 1511634 Nose clips R A LAXTON Ltd 24 March 1977 12451/77 Heading A5T A nose clip formed of spring wire comprises a generally U-shaped portion 10 for location under the septum, having its ends bent upwardly at 11 to provide limbs 12, 13 and then downwardly to provide limbs 15, 16 extending at an angle in the range 18‹-35‹ to the corresponding limb 12, 13, the ends of the limbs 15, 16 being located in close proximity to the bight of the U. The limbs 12, 13, 15 and 16 may be covered by plastics tube.
Patent GB-938490-A (GB)
Title: A method of attaching a nut to a support
IPC: F16B33/00
Filed: 1961-04-06
Abstract: 938,490. Making nuts. UNITED-CARR FASTENER CORPORATION. April 6, 1961 [April 6, 1960], No. 12463/61. Classes 83 (2) and 83 (4). [Also in Group XXV] A method of attaching a nut to support 3 by tools 8, 9 comprises moving one of the tools towards the other to force the barrel part 1 of the nut through the support until its flange 2 bears against one face of the support, and shearing or upsetting a portion of the outer surface of the barrel portion 1 by the tool 9 to form a radial projection 4 which is forced into abutment with the opposite face of the support. The nut may be inserted through a pre-pierced hole 5 in the support or one formed by a cylindrical tip on the nut and a co-operating shearing edge 13 on the tool 9. As the tapered barrel 1 is forced through the hole 5 and into the bore 12 of the tool 9, the edge 13 performs the upsetting operation. Nuts with ribs 14, Fig. 9, may be used which have a local keying action in the hole 5.
Patent GB-1422465-A (GB)
Title: Semiconductor device
IPC: H01L45/00
Filed: 1973-03-15
Abstract: 1422465 Semiconductor devices INTERNATIONAL BUSINESS MACHINES CORP 15 March 1973 [8 June 1972] 12473/73 Heading H1K A device consisting of a low resistivity silicon region forming a PN junction with a region of high resistivity gallium nitride contains imperfections including deep energy traps including double or more acceptor-like traps in the bulk of the nitride and donor-like traps near the junction such that the junction exhibits stable non-volatile high and low resistance states. Switching from high, e.g. 20K-20M# to low resistance, e.g. 40-1000# in less than 100 nanoseconds is effected by a voltage of either polarity above a threshold while passage of current in either direction above a certain level causes reversion to the high resistance state. A typical device is made by depositing a 0À5Á layer of semi-insulating gallium nitride on a 0À01 ohm. cm. P-type silicon substrate by R.F. sputtering in pure argon or other methods and then applying a metal layer to the nitride. If the metal layer is of gold or aluminium a forming voltage of 50-100 volts must be applied to it to achieve the bi-stable memory characteristic. The need for forming can be avoided by using an electrode of vapour deposited indium, alone or alloyed with aluminium, gold, tin or silicon, which is subsequently annealed, or by providing between the electrode a sputtered tin doped indium oxide layer or a layer of indium nitride formed by sputtering or by diffusing or ion-implanting indium into the gallium nitride surface. Fig. 7 shows a memory device in an integrated circuit chip of 10 ohm. cm. silicon. After formation of junction-isolated P+ region 21 and N+ source and drain regions 29, 31 by diffusion an overall layer of gallium nitride is deposited, parts of which may then be removed by etching and replaced by silicon dioxide 34, 36, 38. Metal, e.g. gold or aluminium is then deposited to form the electrodes shown to provide MIS diode 25, IGFET 27, and a diode 23 which is converted into a memory device by electrical forming. To avoid the need for firing, electrode 44 may be of one of the forms described above. In a similar manner an array of diodes 23 may be produced only some of which are electrically formed. Any of these failing in operation can then be replaced by forming one or more of the remaining diodes.
Patent GB-200276-A (GB)
Title: Improvements in and relating to blockwork floors, roofs and the like
IPC: E04B5/10
Filed: 1922-05-04
Abstract: 200,276. Rings, F. C. C., and Anglo- Danish Concrete Construction Co., Ltd. May 4, 1922. Flooring, ceiling, and roofing slabs.-Floors and roofs are formed of upper channel slabs a resting on steel girders, and lower channel slabs d suspended by the rabbeted edges c from the slabs a. The slabs d abut and form a continuous ceiling, but the slabs a are narrower and leave gaps e through which concrete is inserted into the spaces about the webs of the girders. The gaps are finally closed by flat slabs.
Patent GB-369449-A (GB)
Title: Improvements in or relating to electric lamp holders
IPC: H01R33/46
Filed: 1931-04-29
Abstract: 369,449. Electric lamp holders. BAGGS, H. G., Ordsal Electrical Works, Salford, Lancashire. April 29, 1931, No. 12606. [Class 39 (ii).] The plunger contacts and terminals of a lamp holder of the bayonetjoint type are secured in position on the insulating base of the holder by forming the plunger casing as a sleeve B, Fig. 5, which passes through the insulating material F, Fig. 3, and is formed at its upper end with internal screw threads to receive a threaded shank on the terminal A, the terminal being formed with a longitudinal groove D which extends across the screw-threads and is adapted to have part of the casing wall pressed or dented therein to prevent separation of the screwed parts. A recess C is provided in the insulating base to facilitate the indenting of the periphery of the sleeve. The body of the lamp holder may consist entirely of moulded insulating material, as shown in Fig. 3, or it may be of the type comprising an insulating base enclosed in a metal casing.
Patent GB-387316-A (GB)
Title: Arrangement for the reproduction of talking films or the like with the aid of light-sensitive electric cells
IPC: G11B7/00
Filed: 1931-04-29
Abstract: 387,316. Light-sensitive cells. HUTH, E. F., 108, Kopenicker Strasse, Berlin. April 29, 1931, No. 12641. Convention date, Nov. 28, 1930. Void [Published under Sect. 91 of the Acts]. [Class 40 (iii).] Optical sound-reproducing apparatus comprises a source of light 4 and a light-sensitive cell which consists of a thin layer 2 of cuprous oxide on a copper plate 1 arranged either as shown in Fig. 1 so that the thin border line between the two materials lies transversely to the direction of movement of the film or as shown in Fig. 2 with a slit for the passage of light in an opaque covering or-coating 5 provided on the cuprous oxide layer 2. In the arrangement shown in Fig. 5 the light-sensitive cell comprises a member having embedded in its surface a copper plate 1 with a cuprous oxide layer. It is stated that other materials than copper and cuprous oxide may be employed for the components of the light-sensitive cell.
Patent GB-528145-A (GB)
Title: Improvements in evaporators for producing pure distilled water from sea water or other aqueous liquuids containing impurities in solution
IPC: B01D1/02
Filed: 1939-04-28
Abstract: 528,145. Centrifugal separators. AKTIEBOLAGET SEPARATOR. April 28, 1939, No. 12757. Convention date, May 11, 1938. [Class 23] [Also in Groups III and XIII] In producing distilled water from sea water or other aqueous liquids, liquid particles are removed from the steam by passing the latter through a series of rapidly rotating conical annular discs i, as used in centrifugal separators, arranged in the dome or upper part of the evaporator a. The purified steam leaves the evaporator through a channel l and pipe m.
Patent GB-517368-A (GB)
Title: Improvements in and relating to the production of starch grits
IPC: A23L1/0522
Filed: 1938-04-28
Abstract: 517,368. Starch. INTERNATIONAL PATENTS DEVELOPMENT CO. April 28, 1938, No. 12766. Convention date, June 17, 1937. [Class 121] Starch grits for use in brewing &c. are prepared by heating a suspension of starch in water for a time sufficient to swell the starch cells without disruption. The starch is separated and dried. The suspension is heated at 140- 152‹F. for one to ten minutes, and may contain small amounts of sulphur dioxide derived from the starch-making process. Before drying, the suspension may be partly neutralized by addition of sodium carbonate.
Patent GB-195878-A (GB)
Title: Improvements in or relating to electric incandescent lamps and switches therefor
IPC: F21L14/00
Filed: 1922-05-05
Abstract: 195,878. Morel, G. May 5, 1922. Retractive switches.-An electric hand-lamp for inspecting bakers' ovens is attached to a loop 2. which when hung on a pivoted hook 3 actuates a switch 17 to turn off current from the lamp. Current is turned on again, when the lamp is removed from the hook, by the action of a spring 21 upon a rectilinearly movable contact 18. A wire 27 which takes strain off the leads 24, 25 in case the lamp is accidentally dropped is carried through a flexible connection 26 to the lamp handle 5. An enamelled reflector 6 is fitted to the handle.
Patent GB-435749-A (GB)
Title: Improvements in or relating to transmitting systems of telecinematography
IPC: H04N3/38
Filed: 1935-04-29
Abstract: 435,749. Television. COMPAGNIE POUR LA FABRICATION DES COMPTEURS ET MATERIEL D'USINES A GAZ, 12, Place des Etats-Unis, Montrouge, Seine, France. April 29, 1935, No. 12788. Convention date, May 5, 1934. [Class 40 (iii)] A cathode-ray tube effects horizontal analysis at constant speed of a film F which is moved continuously vertically. The light from the fluorescent spot S passes through the film to a photo-electric cell C, and part of the voltage in the amplifier G is fed back to the controlling- cylinder W of the tube to compensate variations in transparency or to accentuate brilliant details. The motor driving the film controls an alternator or a slotted disc D to produce impulses which trigger a saw-tooth oscillator B feeding the deflecting plates D1, D2 which move the cathode-ray horizontally. Synchronizing- signals for controlling receivers are taken from leads E. A carrier wave is produced by modulating the cathode ray by a high-frequency applied to the Wehnelt cylinder from a highfrequency oscillator O. Alternatively, the high-frequency is applied to a pair of plates perpendicular to D 1, D2, and a fine slot arranged before the path MN of the spot on the fluorescent screen. The vertical position of the luminous line MN is regulated by a potential on the deflector plates perpendicular to D1, D2.
Patent GB-895977-A (GB)
Title: Improvements relating to anion-exchange resins
Inventor: KRESSMAN THEODORE ROGER ERNEST
IPC: C08F8/32
Filed: 1959-04-15
Abstract: Improved particles of anion-exchange resins derived from aminated, haloalkylated, crosslinked polymers of aromatic hydrocarbons, are obtained by treating the intermediate haloalkylated product with a liquid, organic, decomposing agent that diffuses into the polymer and decomposes the complex of Friedel-Crafts catalyst/haloalkylating agent which is formed during the haloalkylation and is contained in the intermediate product.  Preferably the intermediate is separated from the reaction mixture before adding the decomposing agent.  If desired amination may be effected in the presence of the liquid used as decomposing agent.  Liquid decomposing agents specified are methanol, ethanol, acetone, ethyl methyl ketone, dioxan, tetrahydrofuran, dimethyl formamide and cyclohexanone.  In the example a styrene/ethylene dimethacrylate polymer in the form of spherical particles, is haloalkylated with chloromethyl or bromomethyl ether in the presence of ethylene dichloride and aluminium chloride as catalyst.  Prior to amination the separated beads of haloalkylated product are treated with acetone.
Patent GB-528162-A (GB)
Title: Improvements in and relating to the production of amino acids
Filed: 1939-04-28
Abstract: 528,162. Leucine ; tyrosine. CORN PRODUCTS REFINING CO. April 28, 1939, No. 12834. Convention date, June 20, 1938. [Class 2 (iii)] Leucine and tyrosine are precipitated from a solution of amino acids, produced by the hydrolysis of maize gluten with an acid, e.g. hydrochloric acid, by adjusting the pH value of the solution to a point between 6 and 7, preferably 6.4. The tyrosine is separated by dissolving the precipitate in dilute hydrochloric acid, and adjusting the pH to between 2.4 and 3.4 by addition of an alkaline substance, preferably caustic soda. On cooling the solution and allowing it to stand the tyrosine crystallizes out and can be removed by filtration. The leucine is obtained from the filtrate by concentrating it and adjusting the pH to 6.5. A detailed example is given.
Patent GB-1096395-A (GB)
Title: Phosphors
IPC: C09K11/76
Filed: 1966-03-23
Abstract: A calcium halo-phosphate is activated by antimony, manganese and terbium, the atomic concentration of terbium to calcium being 0.006: 1 to 0.08: 1, preferably 0.01: 1 to 0.04: 1. The material may be made by firing a mixture of a calcium acid ortho-phosphate (CaHPO4), calcium carbonate, calcium fluoride and chloride, antimony trioxide, manganese carbonate and terbium oxide at 1100-1250 DEG  C. for 1 to 3 hours.  The terbium adds a green emission (max. 5450 <\>rA), partly sensitized by an antimony U-V emission at 3800 <\>rA to give the phosphor a substantially white emission in a low-pressure mercury vapour lamp.  Reference is also made to thallium and copper as co-activators with terbium.
Patent GB-860674-A (GB)
Title: Improvements in or relating to the purification of sulphur
IPC: C01B17/02
Filed: 1957-04-23
Abstract: Sulphur is separated from a sulphur ore of a quality between 50 and 75 weight per cent of sulphur and of particle size all through 80-mesh B.S.S. by heating the ore in water or an aqueous calcium, magnesium, or zinc chloride solution to melt the sulphur, permitting cooling to solidify the sulphur, and classifying to separate the sulphur fraction of above 80 mesh particle size.  The sulphur ore may be naturally occurring, filter cake containing sulphur, partially purified sulphur, oxide from gas plants, or any mixture of sulphur with inorganic waste, in which the sulphur content may be adjusted to 50-75% by adding pure sulphur or inorganic silicate.  The ore may be comminuted to the desired size, preferably larger than 300 mesh and generally smaller than 100 mesh.  The ore is placed in water or a concentrated chloride solution in a vol. ratio liquid to solid 3 : 1 to 10 : 1, and is heated with agitation at 125-135 DEG  C., if necessary, under pressure.  After cooling, the solid may be separated into two fractions, greater and smaller than 80 mesh, or into three fractions greater than 60 mesh, 60-80 mesh, and smaller than 80 mesh. The largest size fraction is pure sulphur, is washed, and may be further purified by fusion filtration, while the smallest size fraction is inorganic waste and may be leached with hot chloride solution.  The middle fraction of a three-fraction separation may be recycled.  The process may be batch or continuous.
Patent GB-231696-A (GB)
Title: Improvements in hoists
IPC: B66D3/22
Filed: 1924-05-26
Abstract: 231,696. Marks, E. C. R., (Ingersoll-Rand Co.). May 26, 1924. Fluid-pressure; disc.-The valve for controlling the power supply of pressure fluid to a reversible engine driving a winding drum, also controls the fluid-pressure-operated brake so that the admission of fluid to the engine also admits fluid to a pressure chamber to release the brake, while the cutting-off of the fluid to stop the engine opens the brake chamber to exhaust to re-apply the brake. In the illustrated form the motor is of known type comprising a number of angularlydisposed rotating cylinders E connected to the driven shaft P, which drives the drum 13 through triplereduction spur gearing. When the spring- controlled throttle valve t is rotated in either direction from a central position in order to drive the motor in one direction or the other, the pressure fluid also is transmitted along the pipe 41 to the chamber 37, thereby operating the flexible diaphragm 38 to move the member 35 and the attached brake disc 33 away from the brake disc. 29 on the shaft P. The restoration of the throttle valve to its central position opens the chamber 37 to exhaust, thus allowing the springs 36 to re-apply the brake. The hand-operated throttle valve t, Fig. 3, has a port 46 which in the central position connects the pipe 41 to the atmosphere, while in either of the running positions one of the ports 2, 3 communicates with one of the inlet ports k, o while the other port 2 or 3 as the case may be, communicates with the pipe 41. Specification 217,421, [Class 122 (iii), Steam-engines, Kinds &c.] is referred to.
Patent GB-549170-A (GB)
Title: A trolley device for use with hand luggage
IPC: A45C13/38
Filed: 1941-10-07
Abstract: 549,170. Wheeled luggage carriers. WHENMOUTH, W. H. Oct. 7, 1941. No: 12936. [Class 108 (i)] A wheeled parcel &c. carrying trolley, shown in inverted plan, Fig. 2, comprises a platform formed of two component plates 4 with head portions 5 and stems 6, slidably connected by studs 11, working in grooves 10 in the stems and secured by nuts 12. End flanges 13 and 14 are provided.
Patent GB-290628-A (GB)
Title: Process for the separation of tin from oxidic stanniferous and plumbiferous materials
IPC: C22B25/00
Filed: 1928-05-03
Abstract: 290,628. H³ttenwerke Trotha Akt.- Ges., and Witter, W. May 18, 1927. [Convention date]. Alkali stannates, plumbites; lead oxide. - A mixture of oxidic starniferous and plumbiferous materials is fused with caustic alkalis, such as caustic soda, for a period of about two hours, with constant stirring, and at a temperature of 300‹ to 450‹ C., and preferably with the addition of 5 per cent of granular wood charcoal. The melt contains the greater portion of the tin as stannate, and a small amount of lead, as plumbite. The residue contains chiefly undissolved lead oxide and a small quantity of tin. The melt is then treated with a small quantity of water or lye, which removes free caustic soda and nearly all the lead which has passed into solution, leaving the bulk of the tin salts undissolved. This lye may be treated by known means to remove the lead, then concentrated and employed in the decomposition of fresh quantities of oxide mixtures. After the above treatment, a residue remains from which the tin salts may be dissolved out by water, and tin is then obtained in a pure form by known processes from this solution, after any impurities present have been removed by known processes. Caustic potash may be employed for the decomposition in place of, or admixed with caustic soda, the process being carried out as described above.
Patent GB-1138937-A (GB)
Title: Method and apparatus for winding multi-ply web rolls and product
IPC: B65H19/29
Filed: 1967-03-20
Abstract: 1,138,937. Winding webs; fastening web plies by embossing. SCOTT PAPER CO. 20 March, 1967 [28 March, 1966], No. 13047/67. Headings B6B and B6P. In a turret web-winding machine for multiply webs, an embossing roller 22 and an associated anvil roller 21 are incorporated to enable the plies of the web to be joined together by deformation over the limited length where the web is cut off and transferred to a new core. This prevents the outer plies unravelling when the innermost ply of the trailing end of the web is adhered to the completed web-roll (Fig. 1), and also ensures that all plies of the leading end of the web are attached to the new core 32. The web 17 passes from a supply roll 16, over a tension controlling dancer roller 19, a spreader roller 20, the anvil roller 21, a draw roller 23, a perforating roller 24, a guide roller 25, through slitter rollers 26, 27 and over a bed roller 28 having a cut-off knife 38. The embossing roller 22 is biased into contact with the anvil roller 21 by a spring 44, but during winding is held out of contact by a cam mechanism 53. For relatively small diameter web-rolls 10, the cam 52 may be arranged to rotate once for the length of web required to complete the roll 10, so that the follower roller 50 enters the recess 55 of the cam to emboss the web at the required position, for cut-off. However, for larger diameter web-rolls 10, it is preferable to have the cam 52 rotating a number of times. To prevent the roller 50 entering the recess 55 when not required, a longitudinally moving blocking bar 57 is provided which abuts extensions 56 of the pivoted arms 49 supporting the roller 50. The blocking bar 57 has notches (58, Fig. 4) which move under the extensions 56 when an air cylinder (59) moves the bar 57 longitudinally when the required length of web has been wound. This allows the roller 50 to enter the cam recess 55 so that the web is embossed.
Patent GB-332903-A (GB)
Title: Improvements in or relating to textile fabrics
IPC: D02G3/28
Filed: 1929-04-29
Abstract: 332,903. Dreyfus, H. April 29, 1929. Yarns and threads.-CrÛpe or like effects are produced by the use of a composite thread consisting solely of two threads, both of which are highly twisted, but in opposite directions. In a modified form, a high twist thread may be doubled with a low twist thread. Such a thread may also be used as a component in the composite thread. The component threads may consist of artificial silk, natural silk, cotton or wool, and may be unlike in denier, colour, or composition. They may be parallel wound sized together, or lightly doubled together and used for warp as well as weft.
Patent GB-263388-A (GB)
Title: Arrangement in directories for facilitating the finding of subdivisions in the same
IPC: B42F21/00
Filed: 1926-05-25
Abstract: 263,388. Bram, A. May 25, 1926. Indexing. - In directories and like books which are divided into sections by interposed cardboard sheets of different colours, the leaves of each section and the cardboard sheets a, b, c, Fig. 1, associated therewith are of such a width that their longitudinal edge project stepwise beyond those of the preceding section, their lengths being equal. In a modification, Fig. 2, the cardboard separating sheets and their associated sections are cut in the from of steps a - - d &c. down the longitudinal edge of the book, the edge of the cardboard sheet and leaves of each section being of a length which is greater than that of the section above it. In another modification, Fig. 5, the leaves of each section are cut so that their longitudinal edges present a saw-like formation, the cardboard separating sheets a, b, c being of the width of the widest leaf of each section.
Patent GB-451302-A (GB)
Title: Improvements relating to junction boxes
IPC: H02G3/16
Filed: 1935-05-04
Abstract: 451,302. Junction boxes. HENLEY'S TELEGRAPH WORKS CO., Ltd., W. T., 11, Holborn Viaduct, London, and STONE, J. F., Ibrox, Whitehill Lane, Gravesend. May 4, 1935, No. 13325. [Class 38 (i)] Relates to a junction box which comprises a casing having a base 1 and a cover 2 made of insulating material and adapted to fit together to enclose a metal connector 3, the base being fixed to a backboard or the like by a screw passing therethrough. According to the invention, the base is provided with an upstanding boss 4 which is formed with a hole 9 for the reception of the fixing screw, and the metal connector 3 is shaped to fit around the boss when in position in the base. The inner surface of the cover is formed with a downwardly-extending flange 11 which fits into the projecting wall 10 of the boss and forms an insulating enclosure that shields the fixing screw from the connector 3. The fixing screw may also be used to secure the cover to the base, but it is preferred to secure the cover by a separate screw 7 which screws into a second hole, 5, in the boss 4. The casing may be provided with openings for the cables which may be closed, when not required, by loose plates that fit into grooves 16. Other openings may be formed with thin partitions 17 which can be broken away when required.