baber/WOPTO huggingface dataset:
Patent GB-857565-A (GB)
Title: Sheet feeding apparatus
IPC: B65H5/22
Filed: 1959-02-20
Abstract: 857,565. Endless conveyers. SPIESS, G. Feb. 20, 1959 [Feb. 24, 1958], No. 5889/59. Class 78 (1). [Also in Group XVI] A sheet-feeding table, for feeding sheets singly or in overlapping form from a sheetseparating mechanism, comprises a series of parallel strips 1 extending transversely of the direction of sheet feed, each strip being connected to endless chains 5 which are mounted on wheels 11, 12. Each strip 1 is made of synthetic material or hard rubber, or of metal and coated with rubber, and is slightly curved at the longitudinal edges. The wheels 11, 12 are carried by side frames, such as 3, pivotally mounted at 9 on a sheet-separator 10. The upper runs of the chains 6 are supported by fibre &c. rails to provide a flat sheet table. The sheets are pressed down on to the table strips either by rollers 15, or by air blasts from nozzles 17 in air pipes 16, or by both means.
Patent GB-704223-A (GB)
Title: Improvements in or relating to refrigerators
IPC: F25D25/02
Filed: 1952-03-06
Abstract: 704,223. Refrigerators. MOTOR PRODUCTS CORPORATION. March 6, 1952 [April 16, 1951], No. 5914/52. Class 29 In a refrigerator fitted with crisper pans 20 formed with out-turned top flanges 29, the flange 29 engages in a channel guide rail 43 secured to the side wall of the cabinet by screws 45 and reset to form a recess 49 receiving a rib 47 of a channel guide rail 42 receiving and retaining a glass or like panel 21 overlying the pan 20. End stops on the upper surface of rail 43 prevent front and back-movement of rail 42, the upper face of the channel of which has ribs 51 engaging ribs 50 on the top of panel 21 to hold the latter in place. As shown in Figs. 2 and 4, two pans 20 are supported one at each side of the lower part of the cabinet by such means and the inner flanges 29 of the pans are slidable in a central channel guide rail 31 secured to the rear wall of the cabinet and supported at its front end on a leg 32. The front edge of member 31 is ribbed transversely and fitted with a trim member 36 so as to present a uniform aspect with the front of the pans 20. The inner sides of panels 21 rest on the top of rail 31. Stops 56 on the front part of rails 43, 31 co-operate with stops on flanges 29 to prevent complete withdrawal of the pans unless the latter are lifted to clear the stops. The bottom of pans 20 are shaped to conform to the shape of the bottom 19 of the inner shell of the cabinet. A modified form of rail 31 is described which is adapted to support one pan only at one side of the cabinet.
Patent GB-231844-A (GB)
Title: Heat exchange apparatus
IPC: F28D9/00
Filed: 1925-03-06
Abstract: 231,844. Compagnie de Produits Chimiques et Electrometallurgiques Alais, Froges, et Camargue. April 1, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Regenerators. - A heat-exchanger comprises an assembly of any desired number of elements each of which consists of a cellular unit A, Fig. 1, divided by parallel vertical partitions into two series of chambers, one B open at their upper and lower ends and the other C open at opposite sides. Flanges D facilitate fitting. An example of an assembly, Fig. 2, shows four superposed units with belllike headers at top and bottom, mounted in a casing adapted to cause series flow through the horizontal chambers as by baffles E. Examples of use cover, gases to be heated flowing as indicated at f<1> with waste furnace gases passing as at f<2>, gases to be heated through the vertical channels with a burner at F the products of combustion of which pass as at f<1>, and gases through f<2> acting chemically on solids placed in the vertical channels, heating gases passing as at f<1>.
Patent GB-1139195-A (GB)
Title: Improvements in or relating to composite metallic bodies
Inventor: GIORGI TIZIANO
IPC: B01D53/02
Filed: 1966-02-11
Abstract: 1,139,195. Making getters. S.A.E.S. GETTERS S.p.A. 11 Feb., 1966 [17 Feb., 1965], No. 6165/66. Heading B3A. [Also in Divisions Bl and H1] A getter or capacitor plate comprises a metal carrier having partially embedded in at least one face particles of a thin layer of harder material, the thickness of the thin layer being between one and five times the average diameter of the particles and over half the total surface area of the particles being exposed. It is made by exerting localized pressure on the particles at substantially room temperature, optionally via an intermediate body which is harder than the carrier material. The carrier may be formed from a substrate material plated with a material of appropriate hardness, and the latter may be reactive with the particles on heating to form a heterogeneous alloy. Alternatively the particles may be applied to the substrate material and the composite welded to the carrier, for example, an electronic tube prior to heating to form the alloy. Figures (not shown) refer to an iron or steel carrier with particles of zirconium-aluminium alloy and an iron carrier plated with aluminium with particles of zirconium alloy. Getter materials generally mentioned include Ti, Zr, Th, V, Ta, Nb, W, Pt, iron oxides, nickel oxides, alloys of these, Al, Ce, Mn, Na, Ba, Cs, Hg or metal mixtures, e.g. a mixture of Ce and La. Carriers include Fe, Ni, Al, Ni-Fe alloys, Al-clad Fe, Al-clad Ni-Fe alloys, Fe-Mn alloy. Plating materials include Al, Ni, Ti, Cr. The getters may be in the form of rings, strips, sheets, cylinders or cones, or may be an integral part of the electrodes of any electronic discharge device, or of an electrode carrier. Gas- and mercury-filled tubes, transistor containers, getter pumps and ion-pumps are mentioned.
Patent GB-1254441-A (GB)
Title: Improvements in and relating to tea machines
Inventor: CAREW ROBERT FRANK
IPC: A01D46/04
Filed: 1968-02-08
Abstract: 1,254,441. Tea drying apparatus. MARSHALL'S TEA MACHINERY CO. Ltd. 7 Feb., 1969 [8 Feb., 1968], No. 6193/68. Heading F4G. [Also in Division G3] The temperature and/or flow rate of air drying tea is controlled in dependance on the electrical resistance of the tea. In apparatus comprising a heated feed conveyer leading tea to a heated chamber containing a plurality of conveyers, the resistance may .be measured across the nip between the metal conveyer and a metal roller, or in a hopper at the end of the apparatus or preferably, between two combs 4, 5, positioned at the entrance to the chamber, having prongs 3 projecting into the layer of tea 2 on the conveyer 1. The depth of penetration may be varied by cams 6. The measured resistance forms one arm of a Wheatstone bridge circuit and the out-of-balance voltage is amplified and passed to servomotor M which drives a control to vary the temperature and/or flow rate of the heated air stream passing up through the perforated conveyer 1 to maintain the moisture content of the tea, constant. The motor may control the heating rate of a combustion or electric heater, heating the air stream, or may vary the proportion of heated air and ambient air mixed in a mixer valve, or may vary the flow rate of the heated air by valves in the supply duct.
Patent GB-815348-A (GB)
Title: Quaternary pyridylisoquinoline derivatives
Inventor: BOON WILLIAM ROBERT
IPC: C07D471/14
Filed: 1957-02-25
Abstract: The invention comprises compounds of the formula <FORM:0815348/IV (b)/1> wherein X represents an anion, and the 3 : 4-dihydro derivatives thereof.  The compounds are prepared by heating a 1-(21-pyridyl) isoquinoline or the 3 : 4-dihydro derivative thereof with an ethylene glycol di-ester.  The reaction is preferably conducted in a solvent such as nitrobenzene or b -ethoxyethanol.  The anion X is preferably chloride, bromide, iodide, sulphate or paratoluene-sulphonate ion, and may be interchanged by suitable double decomposition in aqueous solution.  The examples describe the preparation of 3 : 4-benz-5 : 6-dihydro-N : N1-ethylene - 2 : 21 - dipyridylium dibromide, 3 : 4 - benz - N : N1 - ethylene - 2 : 21 - dipyridylium dibromide and 3 : 4 - benz - N : N1-ethylene - 2 : 21 - dipyridylium di - paratoluenesulphonate.ALSO:A herbicidal composition comprises one or more quaternary salts of the formula <FORM:0815348/VI/1> wherein X is an anion, and/or the 3 : 4-dihydro derivatives thereof, in admixture with suitable inert diluents or carriers therefor.  The compounding ingredient may be an inert pulverulent diluent such as talc, china clay, gypsum, basic slag, kieselguhr or bentonite and other colloidal clays; or an aqueous solution containing auxiliary agents such as wetting agents, humectants and adherants.  Specified wetting agents are alkali metal (e.g. sodium) salts of dinaphthylmethane disulphonic acids, alkali metal salts of long-chain aliphatic sulphates, such as sodium lauryl sulphate, and ethylene oxide-alkyl phenol condensation products, such as the product obtained by condensing one molecular proportion of octylcresol with 8 to 10 molecular proportions of ethylene oxide. Specified humectants are calcium chloride, glycerol, ethylene glycol and water-soluble ethylene glycols.  Specified adherants are sodium carboxymethylcellulose and ammonium polymethacrylate.  Exemplified anions are chloride, bromide, iodide, sulphate and para-toluene-sulphonate.
Patent GB-540247-A (GB)
Title: Improvements relating to the production of metal strips or sheets
IPC: B22D11/06
Filed: 1940-04-05
Abstract: 540,247. Casting-machines ; rolling. HAZELETT, C. W. April 5, 1940, No. 6212. [Classes 83 (i) and 83 (iv)] Molten steel, nickel, nickel alloy, lead, or other metal is poured on to the surface of a continuously moving cooling member which allows it to spread freely and carries it to means, at a distance from the pouring point, for rolling it into a strip or sheet. A broad stream of metal is poured from a pivoted box 28 on to a baffle 33 and thence on to a water-cooled ring 5 supported and driven at 120 to 2000 feet per minute by a roller 1 and preferably kept at 250- 800‹ F. The stream engages the ring at a point not more than an angular distance of 40 degrees from its highest point and is urged to follow the ring's movement by a blast of reducing gas, flames, &c. at 34. A water-cooled roller 35 cools its upper surface and it is rolled less than 1 minute after it has been poured, by a ring 9 and water-cooled roll 8 to reduce its thickness without restraining it from spreading laterally. The roller 1 is pressed upwardly, to give a rolling pressure, preferably between 125 and 1000 lbs. per inch width of the strip, by a hydraulic cylinder 10 and lever 11, acting on. each bearing 14 of the roll 1, the thickness of the rolled product being indicated by pointers adjustably connected to each bearing and regulated by a rheostat 43 which is connected to the lever 11 and arranged in the circuit of a shunt winding 44 of the motor 45, which drives the roll 8 and thus vary its speed. The finished strip is removed by a scraper 42 and may be re-rolled to a thickness of 0.01 inch with or without reheating or may be cooled and rolled up or cut into lengths. In a modification, instead of providing an air &c. blast 34, the pouring box engages the ring 5. For high melting-point metals the box has a refractory lining and is shod, where it engages the ring 5, with copper or nickel, This ring-engaging lip may have a number of feed channels. A brush may be arranged to remove scale from the cooling member or these may be made heat resisting alloys containing chromium, nickel, or molybdenum. For small quantities of metal or for metal of low melting point, the cooling member may be a roll 23, 38 and 40 are water cooling means. If the pressure in the first roll pass is very low, e.g. under 125 pounds per inch of width of the whole strip this has the characteristic of cast metal but at greater pressures the portion in contact with the lower roll or ring 5 has these characteristics but the upper layer has those of worked metal, e.g. in the case of aluminium the lower surface is resistant to corrosion and the upper is ductile. Casting composite strips. - In another modification one or more preformed and preheated metal strips 74, Fig. 6, are interposed between the molten metal and the cooling ring &c. 71 or applied to it after pouring or both. The preheating furnaces 75 may have reducing atmospheres and the compound strip may be re-rolled at 73.
Patent GB-1380573-A (GB)
Title: Troughed belt conveyor
IPC: B65G15/62
Filed: 1971-03-08
Abstract: 1380573 Endless conveyers CONVEYORS (YORKSHIRE) Ltd 12 April 1972 [8 March 1971] 6258/71 Heading B8A The load-carrying run of a conveyer belt is supported on a skid base 11 approximately semi-circular in cross-section, the base being provided with cut-outs 12 to which air under pressure is supplied to reduce frictional drag between the belt and the base. Guide surfaces 10 locate the belt laterally and prevent spillage. Additional guides 15 may be provided.
Patent GB-1496530-A (GB)
Title: Wide angle lens systems
IPC: G02B13/06
Filed: 1975-02-14
Abstract: 1496530 Wide-angle lens ASAHI KOGAKU KOGYO KK 14 Feb 1975 [7 March 1974] 6270/75 Heading G2J A wide-angle lens system (e.g. having a field angle of 75 degrees) comprises six lenses L 1 -L 6  wherein: having their usual meanings. Data are given for two Examples.
Patent GB-339889-A (GB)
Title: Improvements in or relating to valves
IPC: F16K5/22
Filed: 1930-02-25
Abstract: 339,889. Merco Nordstrom Valve Co., (Assignees of Nordstrom, S. J.). Feb. 26, 1929, [Convention date]. Plug cocks; wedging or jamming ; casings.-In a lubricated rotary plug valves for fluids containing condensible constituents destructive to the lubricant, the inlet and outlet casing passages are sloped or expanded from the plug, and the plug passage itself is shaped, so as to drain away condensible constituents from the edges of the lubricant film when the valve is used in any position with the axis of the passages substantially horizontal. Figs. 1 and 4 show an arrangement in which the.passages 11, 12 and the plug passage 17 are flared vertically and horizontally irom the centre of the plug, so that the valve can be used in any position in which the passage axis is horizontal. In a modification, adapted for use with the plug axis vertical, the lower surfaces only of the pasages in the plug and casing are sloped downwards from the centre of the plug. In both arrangements, the plug 16 is held to its seat by a diaphragm 23 pressed against the plug by resilient packing rings 26, as shown. A lubricant chamber 32 in the plug stem 21 is separated by a check valve 37 from an upper chamber 34 fitted with a screw 36 by means of which pressure can be put upon the lubricant to force it through arcuate passages 28 in the plug and longitudinal grooves 31 in the casing. A groove 43 in the plug opens into a chamber 41 below the plug so that when sufficient pressure of lubricant is supplied the plug can be lifted from its seating to facilitate turning.
Patent GB-903668-A (GB)
Title: Copolymers
IPC: C08G2/00
Filed: 1959-02-24
Abstract: A polymer consisting mainly of recurring oxymethylene units, and also containing at least 0,1% of recurring oxyalkylene or substituted oxyalkylene units each containing two or more adjacent carbon atoms, is obtained by copolymerizing trioxane and a cyclic ether containing two or more adjacent carbon atoms.  The copolymerization is carried out in the presence of a boron fluoride co-ordination complex with an organic compound in which oxygen is the donor atom.  The copolymer may contain up to 15% of the oxyalkylene units.  The thermal stability of the copolymer may be improved by reacting it with a isocyanate.  In examples, copolymers are obtained by copolymerizing trioxane with ethylene oxide, dioxolane, neopentyl formal or pentaerythritol diformal, and in some instances the copolymers are reacted with toluene-2, 4-di-isocyanate.  Other cyclic ethers and isocyanates are mentioned.  Specification 877,820 is referred to.
Patent GB-1361303-A (GB)
Title: Manufacture of semiconductor devices
IPC: H01L21/74
Filed: 1972-02-11
Abstract: 1361303 Semi-conductor devices FERRANTI Ltd 9 Feb 1973 [11 Feb 1972] 6407/72 Heading H1K  The properties of a thin interface region 15, 10-1000Š thick, between an extrinsic semiconductor substrate 11 and an epitaxial layer 14 deposited thereon are determined by impurities diffused into a shallow surface layer of the substrate 11 prior to deposition of the layer 14. Undesirably sharp changes in the impurity gradient between the substrate 11 and layer 14 and inadvertent conductivity-type changes in the interface region 15 are thus avoided. The substrate 11 and epitaxial layer 14 may both be of B-doped Si, and N<SP>+</SP>-type buried layers 13 may be formed by oxidemasked diffusion of As before a short-shallow overall diffusion of B to control the interface region 15. The last-mentioned diffusion step may be carried out in an identical atmosphere to that from which the epitaxial layer 14 is subsequently deposited, with the exception that the source of Si 2 -, i.e. SiCl 1 - is omitted. The buried layers 13 may form parts of the collector regions of collector-diffusion-isolated transistors, the remainder of the collector regions being formed by N<SP>+</SP> -type isolation walls diffused through the epitaxial layer 14 to meet the peripheries of the buried layers 13. In modifications the epitaxial layer may be of opposite conductivity type to the substrate and the prediffused impurities to control the interface region 15 may be of either type and in a concentration significantly different from that in the epitaxial layer.
Patent GB-817037-A (GB)
Title: Improvements in process and compositions for the electroposition of copper
IPC: C25D3/40
Filed: 1957-02-26
Abstract: 817,037. Electroplating with copper. DU PONT DE NEMOURS & CO., E. I. Feb. 26, 1957 [April 30, 1956], No. 6470/57. Drawings to Specification. Class 41. In electrodepositing copper from a selenidecontaining copper cyanide plating bath, the bath composition is maintained by adding thereto a pre-formed aqueous solution prepared from cuprous selenide and an alkali or alkaline earth metal cyanide in proportions to provide by weight 0.9 part of cyanide radical per part of cuprous selenide. Preferably solid mixtures of the cyanide and cuprous selenide are dissolved in water to make the solutions. For bright deposits the bath contains 200-1000 p.p.m. of a brightener methylene-bis (naphthalene sulphonic acid) or its alkali metal salts or polymers thereof and the quantity of cuprous selenide should be sufficient to yield 2-50 p.p.m. of selenium. Periodic reverse plating as described and claimed in Specification 630,165, may be employed to obtain uniform deposits. Specification 801,460 and U.S.A. Specification 2,694,677 also are referred to.
Patent GB-1184538-A (GB)
Title: alpha-Alkyl-5-Hydroxytryptophan Esters
IPC: A61K31/425
Filed: 1969-02-06
Abstract: 1,184,538. Sedatives. UPJOHN CO. 6 Feb., 1969 [16 Feb., 1968], No. 6537/69. Heading A5B. [Also in Division C2] Pharmaceutical compositions in conventional forms for oral and parenteral administration comprise a novel compound of formula having sedative, tranquillizing and antihypotensive activity, wherein R 1  and R 2  are hydrogen or alkyl having from 1 to 6 carbon atoms, inclusive, wherein R 3  is alkyl defined as above, and wherein R 4  is alkyl having from 1 to 12 carbon atoms, inclusive, cycloalkyl having from 3 to 8 carbon atoms, inclusive, phenyl, alkyl substituted phenyl or phenylalkyl having from 7 to 10 carbon atoms, inclusive, and a pharmaceutical diluent and/or another hypotensive agent, a diuretic, a ganglion-blocking agent, a sympathetic blocking agent, a peripheral vasodilator, a tranquillizer, a sedative, a reserpine type compound or a muscle relaxant many examples of which agents are given.
Patent GB-307022-A (GB)
Title: Improvements in and relating to multi-stage centrifugal compressors with intermediate cooling
IPC: F04D29/58
Filed: 1929-02-28
Abstract: 307,022. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts-Ges.). March 1, 1928, [Convention date]. Multi-stage compressors ;cooling.-A cooler a is arranged outside the compressor casing and between the two stages b, c of the compressor. The compressed medium from the stage b passes to the cooler through two conduits d, e with spiral walls which together surround the rotor. The conduits d, e combine to form one conduit f which extends over the entire length of the cooler, so that the medium impinges on the cooling pipes throughout their length. 'The conduits which convey the medium from the cooler to the stage c are constructed in a similar manner, to prevent undue stresses in the cooling pipes if a back flow of the medium should occur. In a modification, similarly constructed conduits are used with two coolers placed in parallel between the compressor stages.
Patent GB-249310-A (GB)
Title: Improvements in variable electric condensers
Filed: 1925-03-10
Abstract: 249,310. Lissen, Ltd., and Richardson, R. P. March 10, 1925. Condensers of the variable type having substantially parallel and substantially plane electrodes separated by a thin layer of mica, or like solid insulation, and by a variable thickness of air, and wherein capacity variation is effected by causing the electrodes to approach or recede in a direction at right-angles to their plane, have a stop adjustable with respect to the controlling spindle for limiting the variation of capacity and means operable without dismantling the condenser for shifting the stop so as to alter the range of variation. Condensers of the type referred to are set out in Specification 227,556. The fixed plate 1 forms the top of the casing 2 and the movable plate 3 is shifted by turning the threaded spindle 4, an insulating plate 6 to which the plate 3 is secured preventing rotation of the latter by sliding on pins 7 set in the plate 1. The range of adjustment is limited by a tongue 8 engaging a stop 9 formed as a lug on a spring 10, the ends of which engage recesses 11 in the casing. To alter the range a moderate force is applied to the spring to disengage it from one pair of recesses and move it to the next, the force baing applied by a key which can be inserted through an opening 13 in the casing into a non- circular hole 12 formed in the spring where the latter bears on the spindle. In a modification, Fig. 3, the plate 6 is engaged by a threaded sleeve 14 having flanges 15, 16 for limiting the range. The sleeve is notched in the flange 16 to receive the ends of a spring 17 fitting over the squared end 18 of the spindle 4 to which it is secured by a screw 19. By inserting a screwdriver through the opening 20 and loosening the screw 19, the spindle 4 and sleeve 14 are made capable of relative movement to alter the range, which in this construction may be more than one turn of the operating handle. According to the Provisional Specification, in the form shown in Fig. 3 the sleeve is prevented from rotating on the spindle by the engagement of spring tongues or like means on the sleeve with recesses in a ring round the spindle, and the sleeve may be shifted by a key or by being extended outside the casing and formed with a hexagonal collar for turning by an ordinary spanner.