baber/WOPTO huggingface dataset:
Patent GB-701973-A (GB)
Title: Improvements in pressure liquid relays applicable, e.g., to pressure gauges
Inventor: TREVASKIS HENRY WILLIAM
IPC: G01L19/00
Filed: 1950-09-16
Abstract: 701,973. Pressure gauges. DUNLOP RUBBER CO., Ltd. Aug. 22, 1951 [Sept. 16, 1950], No. 22812/50. Class 106 (2) [Also in Group XXIX] A pressure liquid relay comprises a cylinder 1 with an inlet 2 for connection to a source of pressure liquid and an outlet for connection to a pressure gauge, a piston 12 normally slidable in the cylinder, means for preventing movement of the piston during priming of the gauge, a valve 18 in the piston and urged to its seat 16 by springs 21, 24, spring 21 also urging the piston towards the inlet end of the cylinder, the valve being adapted to move off its seat during priming when the inlet pressure exceeds the outlet pressure, and being further adapted to engage a seat 11 at the outlet end of the cylinder when the piston moves to said outlet end. Inlet pressure moves the piston 12 to pressurize the liquid between the piston and-gauge so that the gauge will indicate the pressure. The space between the piston and gauge is primed with liquid by fixing the piston with a clamp 27 externally of the cylinder, applying pressure liquid from the system to the inlet 2 which raises valve 18 from its seat and passes into said space, and bleeding air from the space adjacent the gauge, the clamp being removed when the space is filled. Should liquid leak from the space when the system is under pressure, e.g. due to the gauge being damaged, the piston and valve move to the outlet end of the cylinder where the rear face of the valve engages the seat 11 to prevent loss of liquid from the system. When pressure is released from the system, the valve and piston take up the positions shown, the valve stem 22 abutting the inlet end of the cylinder and should the liquid between the piston and gauge be under pressure, e g. due to heat, thus preventing the gauge from returning to zero, the piston will move away from the valve to relieve such pressure and permit the gauge to return to zero.
Patent GB-788590-A (GB)
Title: Improvements in or relating to fungicidal composition
Filed: 1956-07-24
Abstract: A fungicidal composition comprises a substantially neutral, water-soluble chromium salt, e.g. potassium, sodium or ammonium chromate, a cadmium salt of a dibasic organic acid, e.g. sebacate, succinate, phthalate, maleate or rubeanate, and victoria green, preferably in the proportion of parts by weight of 5, 5-20 and 0.5-6 respectively.  Nitrogeneous compounds such as urea, ammonium nitrate and nitrogen-containing organic materials such as sewage sludge, tankage products, plant materials, iron compounds, e.g. ferrous sulfate, thiurams, e.g. bis - (dimethylthiocarbamyl) disulfide, and bis-(diethylthiocarbamyl) disulfide and surface-active agents may also be incorporated together with a yellow dye, e.g. auramine-O or chrysoidine-Y.
Patent GB-757397-A (GB)
Title: Improvements in or relating to the production of cresols
Inventor: TAYLOR ARTHUR WILLIAM CHARLES
IPC: C07C37/00
Filed: 1953-08-19
Abstract: The process of the parent Specification for the production of cresol by vapour phase hydrogenation of chlorocresol is carried out in the presence of a chromite catalyst consisting of an oxide of chromium associated with at least one of the following metals or their oxides: zinc, cadmium, iron, cobalt, nickel, manganese, aluminium, barium, calcium, magnesium, copper or silver.  A suitable temperature is 250-550 DEG  C., preferably 300-400 DEG  C., the molar ratio of hydrogen to chloro-cresol being up to 5:1 for a good yield of cresol. The catalyst is preferably jacketed with a heat exchange medium to prevent any local rise in temperature. The process is particularly applicable to the production of o-cresol from 6-chloro-o-cresol, an example of this being given using a zinc-iron-chromium oxide catalyst.  The reaction may form part of a cyclic process for the production of 2-methyl-4-chlorophenoxyacetic acid as in the parent Specification.ALSO:Catalysts for the hydrogenation of chloro-cresol to cresol comprise an oxide of chromium in association with at least one of the following metals or their oxides:-zinc, cadmium, iron, cobalt, nickel, manganese, aluminium, barium, calcium, magnesium, copper or silver.  They may be made by precipitation of the hydrated oxides from solutions of their salts, followed by drying and calcining, or by the process of Specification 301,806 [Class 1(1)]. In the example a solution of zinc nitrate, ferric nitrate and chromium trioxide is precipitated with ammonia and the hydrated oxides dried, calcined, ground and pelleted, giving a product containing the metals in proportion 4:1:5.
Patent GB-517003-A (GB)
Title: Improvements in and relating to pulley blocks
IPC: B66D3/16
Filed: 1938-08-02
Abstract: 517,003. Pulley blocks. MORRIS, Ltd., H., and SMITH, G. T. Aug. 2, 1938, No. 22887. [Class 78 (v)] A pulley block has a body or frame built up of three co-axial parts, viz., a middle portion 1 into which spigot two end members 2, 3, the whole when bolted together forming a rigid unit adapted to carry the block components. The portion 1 houses a load-chain wheel 7 which may be,integral with a pinion-cage 23. The end member 2 has a centrally projecting hollow stud 4'on which the cage 23 is journalled and is provided on its inner face with an internal gear ring 6 meshing with the cage pinions 36. The sun wheel is carried by a shaft 25 on which the wheel 7 rides loosely and on the outer end of which is threaded a hand-chain wheel 12 furnished with a brake pad 40 and ratchet wheel and pawl 17, 20. The end member 3 is formed with a chain guide 11 and has an abutment against which presses the spring bearing on the pawl 20. A bolt 9 holds a stripper piece 10 in position, and a bar 14 engages the suspension hook. Lubricating passages 30, 31, 32, 33, 34, 35, 37 are provided to conduct grease from a gun applied to nipples 27, 28 to all moving parts of the block.
Patent GB-316266-A (GB)
Title: Improvements in or relating to furnaces employing pulverulent fuel and methods of operating the same
IPC: F23C99/00
Filed: 1929-07-25
Abstract: 316,266. Carborundum Co., Ltd., (Assignees of Benner, R. C., Easter, G. J., and Stromberg, B. W.). July 26, 1928, [Convention date]. Pulverulent-fuel furnaces. - A method of operating a furnace employing pulverulent coal or like fuel consists in adding a regulable amount of reagent such as rouge or clay to the fuel in order to control the melting point of the ash which may be brought within a range of temperatube of 50‹ C. to 250‹ C. lower than the flame temperature of the burning fire. Fig. 1 shows a combustion chamber 9 provided with a blower 16 and pipe 17 for supplying powdered coal and primary air and a hopper 30 and screw conveyer for supplying reagent in variable proportion to the stream of fuel and air. The mixture of fuel and reagent passes to a burner 3 of the turbulent type having vanes 3a, a convergent nozzle 3b and means for longitudinal adjustment with respect to the combustion chamber 9. A damper 5 controls the supply of heated air from the passage 12 to the conduit 6 and passage 7 leading to the air space 4 around the end of the burner. The point of combustion may be varied by adjustment of the air supplies through the conduit 6 and annular air spaces 4 and by adjusting the burner relative to the annular air space. The metal shell surrounding the end of the burner is water cooled. Specification 282,720 is referred to. According to the Specification as open to inspection under Sect. 91 (3) (a) the degree of cooling of the combustion chamber may be varied at different zones by the provision of a constriction in the air flue as indicated at 21 or bv the introduction of air at various zones as indicated at 29 in Fig. 5 (Cancelled). Water cooling may also be provided by pipes 22 embedded in the walls of the combustion chamber as shown in Fig. 4 (Cancelled). Equalization of the temperature in the combustion chamber may be effected by variation of the cross sections thereof as indicated in Figs. 4 and 5 (Cancelled). This subject-matter does not appear in the Specification as accepted.
Patent GB-1457019-A (GB)
Title: Testing apparatus for testing a metal-clad high tension power installation
IPC: H02B3/00
Filed: 1974-05-22
Abstract: 1457019 Switchgear structures SIEMENS AG 22 May 1974 [30 May 1973] 22980/74 Heading H1N Apparatus for testing high voltage metal clad switchgear and for detection of partial discharges in gas filled, e.g. sulphur hexafluoride, installations comprises an assembly of flange coupled units including a transfer element 5, being an adapter with flanges suitable for the switchgear being tested and the test apparatus, voltage injection means 6 with an H.V. bushing 14 and interchangeable frequency filter 15, voltage measuring means 7 containing capacitance coupling and associated with an instrument 16, a separating element 8 which includes an earthing switch 17 for cutting out succeeding elements when voltage testing only, a coupling element 10 terminating with a gastight and pressure-tight plate 12, and a coupling-up element 11 associated with the partial discharge measuring apparatus 20, 21 which is located in atmospheric air.
Patent GB-374691-A (GB)
Title: Apparatus for pressing carbon dollies for dry cells
IPC: H01M4/10
Filed: 1931-08-15
Abstract: 374,691. Moulding battery electrodes. BUMKE GES., H. A., 8, Chausseestrasse, and AUTOMSPEZIAL - MASCHINEN GES., 5, B³lowstrasse, both in Berlin. Aug. 15, 1931, No. 23025. Convention date, Feb. 12. [Class 87 (ii).] The depolarizing composition to be pressed is withdrawn from the supply vessel by means of an endless conveyer passing through the vessel, and then transferred to the moulds. Preferably, the supply vessel is placed above the moulds, and the endless conveyer belt moves along the bottom of the vessel, so that the composition is continuously withdrawn in a layer of uniform thickness, the thickness being determined by an adjustable slot in the side wall of the vessel. The composition is removed from the conveyer belt by scrapers, blades or the like moving transversely to the belt, and is passed down inclined shoots to the shaping mould. If several pressing devices are to be supplied from one conveyer belt, the scrapers sweep over the belt at different altitudes suitably graded. In the mode of operation illustrated in the drawings, the pressing device consists mainly of a shaping mould 1 and a finishing mould 2, with punches 3, 4 disposed coaxially one on each side and driven in opposite directions by cams 5, 6. Inside the punch 4 a piston 7 is provided having a reciprocatory movement imparted thereto by a crank wheel 8, whereby carbon rods from a magazine 9 are forced into the depolarizing composition to be pressed. In the construction illustrated, two sets of finishing devices are provided in juxtaposition, and the finishing moulds 2 are caused to rotate. The conveyer belt 20 enters and leaves the supply vessel 19 through slots ; at the point of egress a member 29 adjustable in height is provided to spread the composition evenly over the belt. The composition on the belt is divided into portions by the knives 27, 28, and is passed to the shaping moulds over inclined shoots 39 by scrapers 30, 31 moving transversely to the direction of movement of the conveyer belt. The scraper 30 removes only half the composition, the remainder being removed by the scraper 31. As the width of the scrapers is adjusted to the stepping movement of the belt, the latter is wiped perfectly clean.
Patent GB-754057-A (GB)
Title: Improvements in or relating to matrices for use in printing
IPC: B41D1/00
Filed: 1954-08-09
Abstract: 754,057. Printing-surfaces. TRAVIS, R. A. Aug. 9,1954, No. 23082/54. Class 100 (2). A process of making a prepacked matrix for casting a metal printing plate comprises subjecting a cellulosic flong to pressure between a mould and a porous relatively rigid substantially flat plate, thereby yielding a matrix having a substantially flat back surface. As shown, an engraved plate 14 is mounted on the bed 12 of a hot press 11, a flong 15 and porous metal plate 16 being placed over the plate 14. The flong is formed into a matrix for the subsequent casting of printing plates by means of pressure exerted on the metal plate 16 by the platen 18 of the press 11. The flong is pressed at a temperature of about 300-350‹ F. at a pressure of 1500-2000 pounds per square inch, and the moisture in the flong is extracted through the plate 16 by a vacuum pump 24. The plate 16 consists of a sheet of porous, substantially flat, relatively-rigid material, e.g. a porous bronze metal plate composed of a multiplicity of tiny balls or spheres sintered together, finely perforated metal plates, porous ceramics or porous mixtures of cement and asbestos. The flongs used are thicker than normal flongs and have an increased moisture content to enhance their flexibility. Alternatively conventional flongs may have 10 to 30 per cent of fine resilient fibres added thereto. The use of the plate 16 together with a flong of enhanced flexibility results in the production of a matrix having a flat bottom, thus obviating reinforcing or packing the matrix.
Patent GB-1511336-A (GB)
Title: Method and apparatus for the manufacture of a flat membrane apparatus
IPC: B32B3/04
Filed: 1975-05-27
Abstract: 1511336 Unwinding web RHONE-POULENC INDUSTRIES 27 May 1975 [28 May 1974] 23094/75 Heading B8R [Also in Division B5] Web unwinding apparatus used in the manufacture of a flat semi-permeable membrane apparatus 13 comprises a working surface 1, at least one support 6 for at least one roll 5 of membrane 12, means to impart relative reciprocating motion between the roll support and the working surface and means enabling the roll of membrane to be unwound under a controlled tension. Shaft 6 mounted as a cantilever on carrier bar 7 pivots about shaft 8 secured to work surface 1 by means of a bearing. The carrier bar may be balanced by counterweight 9. Flywheel 10 is provided so that the membrane may be wound up and unwound in a continually taut state. In alternative arrangements the support is carried by two carrier bars pivotable together about a fixed axis or the support is mounted on a carriage reciprocable on two guide rails between two stops, the support preferably being cantilevered out from a crank handle on the carriage, or the assembly plinth travels transversely on two rails situated on the work surface and provided with two buffers.
Patent GB-1045297-A (GB)
Title: Improvements in or relating to phosphatizing
IPC: C23C22/03
Filed: 1964-06-04
Abstract: An anhydrous liquid composition for phosphatizing metallic surfaces, e.g. of iron, steel, galvanised iron, aluminium, magnesium or alloys thereof, comprises trichlorethylene or perchlorethylene as predominant ingredient; an alcohol containing 3-8 carbon atoms and/or acid alkyl phosphate having at least one alkyl group containing 3-8 carbon atoms, e.g. from 1 to 10% by weight; a solubilized divalent zinc compound, e.g. the phosphates, chloride, fluoride, chlorofluoride, fluorophosphate, carbonate, formate, acetate, naphthenate, oleate, palmitate, stearate, adipate, or alcoholates (corresponding to above alcohols), or alkyl compounds such as dimethyl/diethyl/di-n-butyl/di-isoamyl zinc, e.g. to give from 0.001% to 1% by weight of Zn; and phosphoric acid or a phosphate compound as a phosphatizing agent, e.g. from 0.05 to 5% by weight; the foregoing preferably constituting at least 98% by weight of the total composition. Optionally stabilizers may be added such as olefins, phenolic compounds, nitro aromatic compounds and/or quinones. Numerous monohydric alcohols are specified as well as polyhydric alcohols such as the butamediols and pentane-diols.  During phosphatizing, the composition is maintained at its refluxing temperature. Initially, ferrous phosphate or steel wool may be added to the bath.  The phosphatized surface may be subsequently baked under infra-red heat, treated with dry steam, chromatized or painted.
Patent GB-248276-A (GB)
Title: Improvements in and relating to signs
IPC: G09F19/16
Filed: 1925-09-19
Abstract: 248,276. Sapp, T., and Burns, W. A. Sept. 19, 1925. Reflectors-A multiple mirror roof sign of the kind adapted to display to passers-by an image of the sign in the sky has a pair of mirrors arranged at an angle to each other and at the edge of the roof, an illuminated sign being arranged at the rear of the mirrors. A vertical glass, celluloid or like translucent mirror 3 is arranged on the coping 2 at the edge of the roof 1 and a similar mirror 4 is mounted on a support 5 so that it is inclined to the first mirror with its upper edge adjacent thereto. A light from a rearwardly arranged illuminated sign 6 passes through the inclined mirror and is reflected from the rear surface of the vertical mirror so as to produce an image A which by reflection at the front surface of the inclined mirror produces an image B visible along the line of sight XY to passers-by in the street. The bottom of the inclined mirror may be adjustably mounted in slides. Steam pipes 7 are placed between the mirrors to obviate the condensation of moisture thereon.
Patent GB-1036146-A (GB)
Title: Method of manufacturing synthetic fibres containing crystalline isotactic polystyrene
IPC: D01F6/20
Filed: 1963-06-13
Abstract: A synthetic fibre comprising a mixture of (a) polyvinyl chloride, polyvinylidene chloride or a copolymer thereof and (b) a crystalline isotactic polystyrene is prepared by dissolving components (a) and (b) in a solvent and extruding the resulting spinning solution.  The solvent may be tetrahydrofuran (optionally together with toluene) or cyclohexane.  The extruded filament may be stretched.
Patent GB-171190-A (GB)
Title: Improvement in rotary air compressors
IPC: F04C29/02
Filed: 1920-08-14
Abstract: 171,190. Jackson, H. O. Aug. 14, 1920. Fluid-actuated valves.-Lubricating oil is supplied to an air compressor from an oil receptacle by the pressure of the compressed fluid and is carried by the air current to a separator whence it flows back to the receptacle under gravity. A valve which is operated automatically by the compressed fluid opens the receptacle to atmosphere upon the compressor ceasing to deliver. The compressor is lubricated by oil supplied from a reservoir to the working chamber and is carried forward by the air-current to a separator, whence it gravitates back to the reservoir, this circulation being assisted by air delivery pressure. From the separator the air passes the spring- pressed non-return valve 64, Fig. 9, to the outlet 96. The valve 64 actuates, by means of a spring 70 and a rod 66, the valve 67 which connects or disconnects the oil reservoir to atmosphere so that while the compressor in delivering compressed air, the pressure is maintained on the oil to circulate it as required for lubrication, but when the delivery pressure falls the valve 64 closes and valve 67 opens to atmosphere, thereby preventing flooding of the compressor with oil. The chamber 95 is provided to trap any foreign matter which may be removed by way of the valve 98.
Patent GB-1465728-A (GB)
Title: Dipeptide sweetener composition
IPC: A23L27/30
Filed: 1974-05-29
Abstract: 1465728 Dipeptide-containing sweetener CUMBERLAND PACKING CORP 29 May 1974 23789/74 Heading A2B An artificial sweetener contains (a) one part by wt. of a dipeptide sweetener (b) 0.1-10 parts of at least one of potassium bitartrate or sodium or potassium bicarbonate and (c) 5-30 parts of at least one of lactose or dextrose. Up to 50% of the dipeptide sweetener may be replaced by saccharine artificial sweetener. The dipeptide sweetener used is aspartyl phenylalanine methylester.
Patent GB-584082-A (GB)
Title: Phase shifters
IPC: H03H11/32
Filed: 1944-12-01
Abstract: 584,082. Cathode ray oscillographs. STANDARD TELEPHONES & CABLES, Ltd. Dec. 1, 1944, No. 24044. Convention date, Dec. 6, 1943. [Class 37] [Also in Group XXXV] A phase shifting circuit for the supply to the deflection plates of an oscillograph tube, comprises a valve 3 arranged as a cathode follower, a transformer 7 with its primary 6 connected between the cathode 5 of valve 3 and earth and a secondary winding 8, 9 with an earthed centre tap across which is connected a condenser 12 and variable resistance 11, to the junction point of which is connected an output circuit of high imput impedance. By varying the value of resistance 11 the phase of the voltage applied to the output circuit may be shifted over a range of about 90‹ relative to the voltage input to the grid of valve 3. The output circuit comprises a pair of balanced valves 15, 16 with cathodes earthed through a common resistance 17, the anodes of which supply the deflection plates of an oscillograph cathode ray tube through leads 24, 25 the voltage of varied phase being applied effectively to their grids.
Patent GB-691716-A (GB)
Title: Improvements in diaphragm gas pressure-reducing valves
IPC: G05D16/06
Filed: 1951-10-16
Abstract: 691,716. Fluid-actuated valves. INCOFIM SOC. ANON. Oct. 16, 1951 [March 9, 1951], No. 24096/51. Class 135 In a diaphragm gas-pressure reducing valve the diaphragm 11 is connected to the valve 9 by a lever 22 pivoted on the valve at the junction 29 of its arms, its shorter arm comprising a flat circular head 23 engaging in a slot 24 in a fixed guide 25a. The guide 25a may be screwed to the casing or adjustably clamped on a valve guiding tube 6 while the long arm is contained between a pin 21 and the base of a fork 20 secured to the diaphragm. In this way the short arm can be made so small that the long arm, diaphragm, and reducing valve may have smaller dimensions than normal reducing valves.
Patent GB-809262-A (GB)
Title: Improvements in and relating to electrolytic processes
Inventor: CERTA ANTHONY J
IPC: C25D17/06
Filed: 1956-08-07
Abstract: 809,262. Electrolytic treatment of articles. PHILCO CORPORATION. Aug. 7, 1956, No. 24147/56. Class 41. A method of electrolytically treating, e.g. plating or polishing, electrically conductive articles, comprises subjecting the articles to the electrolytic treatment operation while they are carried by an electrically conductive support upon which is a layer of loose electrically conductive particles 32, e.g. iron or nickel filings, disposed to ensure a conductive path between the support and the articles. The method may be applied to electroplating vacuum tube bases 25 with silver, an electrolyte 11 comprising silver cyanide, potassium cyanide and potassium carbonate being employed. The bases 25 are held by magnets 22 magnetically supported from plates 21 secured to a plate 14, rubber 23 encasing the parts 14, 21 and 22. A nut 17 enables a threaded rod 15 carrying the plate 14 to be vertically adjusted in a slot 18 in an articulated portion 19 of an arm 12. A silver anode 30 depends in the tank 10.
Patent GB-1526638-A (GB)
Title: Semiconductor integrated circuits
IPC: H01L21/027
Filed: 1977-06-09
Abstract: 1526638 Etching INTERNATIONAL BUSINESS MACHINES CORP 9 June 1977 [30 June 1976] 24255/77 Heading B6J [Also in Division H1] In integrated circuit fabrication the same positive photoresist is utilized to form two different masks used in two separate etching steps. A positive photoresist layer is formed on a substrate, and portions of the positive photoresist layer are selectively exposed and developed to form a photoresist mask having a pattern of openings therethrough. Then, the substrate exposed in these openings is etched to form a pattern of recesses corresponding to the openings. Next, portions of the remaining photoresist mask adjacent to the openings therein are exposed and developed to increase the area of the openings, after which the substrate exposed in these expanded openings is etched whereby the portions of the recesses underlying the original openings are etched deeper than the portions of the recesses underlying the expanded portions of said openings. The result is a two-level recess pattern.