baber/WOPTO huggingface dataset:
Patent GB-821319-A (GB)
Title: A fluid-operated piston and cylinder assembly
Inventor: JACKSON HAROLD ERNEST
IPC: F15B15/22
Filed: 1955-12-02
Abstract: 821,319. Machine-tool details. TECALEMIT Ltd. Nov. 30, 1956 [Dec. 2, 1955], No.34599/55. Class 83 (3). [Also in Groups XXVIII and XXIX] A fluid-pressure-operated jack for feeding material in machine-tools has means enabling the jack-piston to move relatively freely through part of its stroke, to complete its stroke at a controlled speed, and to move freely through its return stroke. The jack comprises a cylinder 1 with a piston 9 having a hollow rod 12, the cylinder having a plug 2 at one end with a fluid-passage 4, and an intermediate plug 5 with a passage 6. The cylinder beyond plug 5 forms a control-chamber containing pistons 33, 38, piston 38 being slidable on an extension 34 of the piston 33. A piston 24 with a tubular rod 22 is mounted inside the piston-rod 12 and is fast with the intermediate plug 5. On supplying fluid (liquid or gas), through passage 6, the jack-piston 9 is moved to the left, and liquid in the annular space 26 between the piston-rods 12, 22, is forced through the interior of rod 22 to the space between plug 5 and piston 33 and moves pistons 33, 38 to the right against the pressure of a spring 45. Spring 45 is relatively weak, so that the jack-piston moves freely until a step 49 on the extension of control-piston 33 abuts an adjustable-stop 41. The liquid from space 26 then flows through a passage 35 in piston 33 at a rate controlled by an adjustable throttle-valve 46, to the space between the control-pistons, and continues to move control-piston 38 to the right. When fluid is supplied through passage 4 to give the return-stroke, the control-pistons are returned by the spring 45, a passage with a non-return valve 37 being provided in the piston 33.
Patent GB-1404526-A (GB)
Title: Polyazo carbazole dyestuffs
IPC: C09B35/46
Filed: 1973-07-20
Abstract: 1404526 Polyazo carbazole dyestuffs BAYER AG 20 July 1973 [21 July 1972] 34673/73 Heading C4P An azo dyestuff has the formula in which A and B represent aromatic-carbocyclic, aromatic heterocyclic or aliphatic radicals which are different from each other. Among the radicals A and B are: acylacetic acid arylide, pyrazolone, iminopyrazole, pyridine, pyrimidone, quinolone or indole. The dyes, including tris- and tetrakis-azo dyes, may be made by tetrazotization of 2,7-diaminocarbazole, and subsequent coupling, and possibly further diazotization and coupling reactions. Esterification or etherification of hydroxy groups may also be carried out. The dyes may be used for dyeing or printing natural or synthetic fibre materials containing hydroxyl groups and containing nitrogen, e.g. cellulosic fibres, especially cotton and regenerated cellulose, paper pulp and paper materials, wool, wool-cotton anion, silk, high molecular polyamide, and leather.
Patent GB-1394676-A (GB)
Title: Liquid-level gauges
IPC: G01F23/02
Filed: 1971-07-23
Abstract: 1394676 Liquid level indication valves MIDLAND BRASS FITTINGS CO Ltd 20 July 1972 [23 July 1971] 34680/71 Heading G1H [Also in Division F2] In a liquid level gauge comprising a sight glass 1 of transparent or translucent plastics material, and a manually open spring loaded valve 6,operated by a pivoted lever 26, the arrangement is such that a valve 4, such as used with cycle tyre and normally maintained in the open position by gravity, provided in the inlet 8 to the tube 1 allows liquid to pass into the tube 1 but should the liquid exceed a predetermined pressure a valve stem 10 in valve 4 is moved to the closed position to prevent liquid entering tube 1.
Patent GB-428305-A (GB)
Title: Process for making photographic silver halide emulsion
IPC: G03C1/035
Filed: 1933-12-09
Abstract: 428,305. Photographic emulsions. SOC. OF CHEMICAL INDUSTRY IN BASLE, Basle, Switzerland. Dec. 9, 1933, No. 34700. Convention date, Dec. 10, 1932. [Class 98 (ii)] Silver halide emulsions are prepared by mixing the necessary components and ripening, and, during the ripening stage, withdrawing at least two portions of different degrees of ripeness and uniting these portions, e.g. by allowing them to flow into a common vessel. Several portions may be withdrawn at short intervals of time or the emulsion may be continuously withdrawn during ripening. Sensitivity, graduation, &c., may be controlled by varying the stages at which portions are withdrawn. The invention may be applied to acid, ammoniacal, or boiled emulsions, and to colour-sensitive emulsions. In an example, a solution of silver nitrate in ammonia with citric acid is run into a solution comprising hard gelatine, potassium bromide and iodide, sodium carbonate and erythrosin ; the mixture is heated to 60‹ C. and run into a second vessel containing a solution of soft gelatine maintained at a temperature of 25‹ C. the speed of flow being such that the mixture passes to the second vessel within 60-70 minutes. After mixing with a further solution of soft gelatine, the mixture is solidified, cut up and washed. Before pouring, the pieces are melted at about 35‹ C., and may be further ripened and run gradually into a vessel at 25‹ C., containing a solution of potassium bromide, gelatine, alcohol chrome alum and a wetting agent. In a second example, after a portion of the mixture has been run into a second vessel, the remainder is ripened for a further period and added in bulk.
Patent GB-367390-A (GB)
Title: Improvements relating to cellulose ester coating compositions
IPC: C09D101/18
Filed: 1930-11-18
Abstract: Cellulose ester coating compositions contain paraldehyde as latent solvent or as diluent to the extent of about 20 per cent or more by weight.  The latent solvent power of paraldehyde may be rendered active by means of solvent or non-solvent activators such as ethyl alcohol, methylated spirit, acetone, methylethylketone, and ethylidene-acetone.  Examples are given of nitrocellulose coating compositions in which (1) the diluent is paraldehyde, with or without toluene, (2) the solvent is a mixture of methyl lactate, paraldehyde, and methylated spirit.ALSO:Cellulose ester coating compositions contain paraldehyde as latent solvent or as diluent to the extent of about 20 per cent or more by weight.  The latent solvent power of paraldehyde may be rendered active by means of solvent or non-solvent activators such as ethyl alcohol, methylated spirit, acetone, methylethylketone, and ethylideneacetone.  Examples are given of nitrocellulose coating compositions in which (1) the diluent is paraldehyde, with or without toluene; (2) the solvent is a mixture of methyl lactate, paraldehyde, and methylated spirit.
Patent GB-1157202-A (GB)
Title: Improvements in or relating to Cathode Ray Tubes
IPC: H01J29/80
Filed: 1966-08-03
Abstract: 1,157,202. Cathode-ray tubes. CSF - COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. 3 Aug., 1966 [3 Sept., 1965], No. 34770/66. Heading H1D. In a cathode-ray tube in which the electron beam is focussed-e.g. by a quadrupolar lens 11 employed for amplifying the beam deflectionafter passing through first and second deflection plates 8 and 10 and before entering a post-deflection acceleration assembly, the latter assembly includes a domed electrode 13 having its centre of curvature substantially coincident with the centre of deflection of the second deflection plates, and being formed with a slot 13 whose area embraces the loci of cross-over points of the focussed beam of electrons, which are accelerated towards the screen 14 by a potential difference applied between the domed electrode and the screen and conductive layer 15 coating the tube envelope. As shown, the lens 11 may be contained at least partially within the aperture of electrode 12, and the slot 13 may be either rectangular or elliptical. The tube shown is also provided with a second quadrupolar lens 9, which both amplifies the deflection produced by vertical deflection plates 8, and counteracts the astigmatism produced by the lens 11.
Patent GB-1514935-A (GB)
Title: Electrode
IPC: G02B21/33
Filed: 1974-08-07
Abstract: 1514935 Electro-chemical reactor electrode B FLEET and S D GUPTA 7 Aug 1975 [7 Aug 1974 15 Nov 1974] 34770/74 and 49533/74 Heading C7B An electro-chemical reactor 20 comprises in a vessel 22 a working electrode 26 having conducting filaments 27, each along its length contacting and recontacting adjacent filaments in the two other dimensions, with electrical connector 44 and means defining an electrolyte flow path through the vessel, e.g. a cylindrical housing 30 with openings adjacent its bottom 32 between inlet 56 and outlet 24, whereby to constrain an electrolyte flow to follow a serpentine path through the electrode e.g. along the filaments. The filaments may be carbon fibres or metallic e.g. Cu fibres. The reactor may be used to remove Cu, Pb, Ni or Cd from waste water during effluent treatment, for electrowinning or electro-organic synthesis. The housing may be replaced by a diaphragm inside the tubular counter-electrode 28; a third reference electrode may be provided. The filaments may be held together at spaced intervals along their lengths e.g. by bands to provide electrical contact.
Patent GB-1182923-A (GB)
Title: Improvements in Electric Cable Installations.
Inventor: WATKINS ROLAND HOWARD WEIR
IPC: E05F11/44
Filed: 1966-07-29
Abstract: 1,182,923. Cooling cables; cooling cable joints. BRITISH INSULATED CALLENDER'S CABLES Ltd. 28 July, 1967 [29 July, 1966], No. 34808/67. Divided out of 1,182,921. Headings H2C and H2E. [Also in Divisions F4 and H1] In a cable installation a cable is cooled by circulation of a cooling fluid through a cable length and/or joint or through an adjacent duct and the fluid is air-cooled by passage through one or more heat exchanger units, each comprising a chamber 1, wholly or partially below ground level. An embodiment shows a heat exchanger 6, attenuators 9, 10, stack 8 and a fan 4 for circulating the air from inlet grill 7 to outlet 11. The attenuators may be in the form of baffles (Fig. 3, not shown), and there may be baffles in the air inlet duct (Fig. 4, not shown). The inlet and outlet ducts of the stack 8 may be thermally insulated from each other (Fig. 2, not shown), and the inlet (22) may be in the upper side wall with the outlet (23) in the top of the stack (Fig. 3, not shown). Specifications 1,076,355 and 1,182,921 are referred to.
Patent GB-452251-A (GB)
Title: Improvements in cardboard cartons for use as containers for small food stuffs and other small articles
IPC: B65D5/02
Filed: 1935-12-16
Abstract: 452,251. Display cartons. HIGHAM, G., 2, Sudbrook Gardens, Ham Common, Richmond, Surrey. Dec. 16, 1935, No. 34863. [Class 18] [See also Group XVIII] Cardboard cartons for food stuffs and other small articles are provided with transverse slots 1, Figs. 1 and 4 and 6, in opposite side walls 2, so that by engagement of flaps 4 with these slots or with the opening between the edge of the lid and the body, a number of cartons can be built up for display purposes. The cartons mav be of the form shown in folded position in Fig. 1, or in set-up position in Fig. 6. Additional slots parallel to slots 1 may be provided, and a tongue 5 may be arranged to lie along the top of a carton.
Patent GB-800419-A (GB)
Title: A washing unit
IPC: E03C1/182
Filed: 1956-11-15
Abstract: 800,419. Combined wash tubs and sinks. GEURS, B. Nov. 15, 1956 [Sept. 17, 1956], No. 35016/56. Class 26. In a washing unit comprising a washing tub 1 and sink 2, the edges 8 of the tub 1 are made gutter-like and the front 11 of the sink 2 extends forwardly of the front wall of the tub 1 to lie flush with a panel 12 in front thereof. The discharge pipe 4 of the tub 1 has a branchpipe 5 extending to a collecting basin 6 above which is the drainage opening 7 of the sink 2. An overflow from the sink 2 is discharged along the edges 8 into the basin 6. The unit may be readily placed in a kitchen dresser. A drawer 13 may fill the space at the bottom.
Patent GB-1348868-A (GB)
Title: Air heaters for movable units
IPC: B60H1/22
Filed: 1972-07-26
Abstract: 1348868 Air heaters J EBERSPACHER 26 July 1972 [6 Aug 1971] 35024/72 Heading F4S In a liquid-fired air heater, particularly for use in mobile units such as motor vehicles or ships, a unitary pressure casting or injection moulding 28 which is surrounded by an outer synthetic resin easing 80, defines a combustion chamber 30, a laterally extending precombustion chamber 32, a fuel-inlet connection (34, Fig. 3) opening at an angle into the precombustion chamber 32, a heat exchanger 36 which together with its internal and external finned or ribbed surfaces 38, 40 forms an axial extension of the combustion chamber 30, and a lateral exhaust gas outlet 42. A single motor 12 drives both a fresh air blower 16 and a combustion air impeller 20, the combustion air entering through an inlet 48 being guided into the combustion chamber 30 through an annular nozzle 54 defined between an insert plate 46 having attached baffles 64 and a sheet metal cap 50 carried by and rotating with the impeller 20. Air to be heated entering through inlet connection 82 passes over the external finned surface of the exchanger 36 and leaves as heated air through an outlet connection 84. Combustion gases leaving the combustion chamber, which in part is defined by a funnel-shaped member 68, flow through an open ended perforated flame tube 72 and over the internally finned surface of the heat exchanger to finally leave through the exhaust outlet 42. The air heater can be provided with an over-heat cut-out. The motor 12 and impellers 16, 20 form a unit which is held in position by a supporting element 22 rigidly secured to an end flange of the pressure casting 28 by a number of bolts 24.
Patent GB-619191-A (GB)
Title: Improvements in or relating to sectionalised bookcases or cabinets
IPC: A47B87/00
Filed: 1946-11-26
Abstract: 619,191. Cabinets. HIBBIT, H. S. Nov. 26, 1946, No. 35026. [Class 52 (i)] One or both ends 7 of a cabinet have their faces sloped at 45 degrees so that cabinet sections may be arranged at right-angles. The sections are preferably connected by detachable hinges 10 and auxiliary shelves may span the gap between the shelves of the angled compartments when the sections are in the aligned position shown.
Patent GB-471235-A (GB)
Title: Improvements in ash melting gas-producers
IPC: C10J3/08
Filed: 1936-12-21
Abstract: Ash-melting gas-producers are blown with a superheated mixture of oxygen and steam, or oxygen and carbon dioxide, the mixture p  being heated to between 300 and 800 DEG  C.  When ores or residues containing volatilizable products such as zinc, lead, tin, phosphorus, or potassium are added, the metals are volatilized. By feeding the producers with agglomerates of calcium phosphates and fuel with a silicious flux phosphorus is recovered.  The steam is replaced by carbon dioxide when it is desired to obtain gases formed almost entirely of carbon monoxide.  An excess of steam may be employed, and any undecomposed in the fusion zone will oxidize the phosphorus to form phosphorus pentoxide.  Specification 229,331, [Class 72], is referred to.ALSO:Ash-melting gas-producers are blown with a superheated mixture of oxygen and steam, or oxygen and carbon dioxide, the mixture being heated to between 300 and 800 DEG  C.  If metallic oxides of iron or nickel agglomerated with fuel are added to the charge, the metal is extracted and collects with the slag.  When ores or residues containing volatilizable products such as zinc, lead, tin, or potassium are added, the metals are volatilized.  The steam is replaced by carbon dioxide when it is desired to obtain gases formed almost entirely of carbon monoxide.  An excess of steam may be employed, and any undecomposed in the fusion zone is decomposed by the iron to yield a high proportion of hydrogen. Specification 229,331, [Class 72], is referred to.
Patent GB-190024-A (GB)
Title: Improvements in the construction of cooling or heating apparatus for liquids
IPC: F28F3/12
Filed: 1921-12-30
Abstract: 190,024. Lawrence & Co., Ltd., and Bradley, G. H. Dec. 30, 1921. Milk, wort, and like upright coolers for liquids comprise spaced corrugated plates and supporting end members combined with connecting means between the plates and members which present a smooth surface without angles, to facilitate cleaning and to prevent the lodgment of deleterious matter. As shown, the end members a or backing members c connected thereto by studs c<1> are formed with a plurality of projecting fingers d shaped to fit closely between the corrugations b, the connections being effected by soldering or brazing all round the contacting edges and trued to the curvature of the contacting parts. The points d<2> of the fingers are bevelled off where they engage the base of the corrugations.
Patent GB-1116401-A (GB)
Title: Operating circuits for self-parking vehicle windscreen wipers
Inventor: NOLAN ROGER WILLIAM
IPC: B60S1/48
Filed: 1964-03-05
Abstract: 1,116,401. Windscreen cleaning systems. JOSEPH LUCAS (INDUSTRIES) Ltd. 25 Feb., 1965 [5 March, 1964], No. 35082/63. Heading A4F [Also in Divisions G1 and H2] The circuit of a self-parking windscreen wiper system includes a parking switch 17 in series with the wiper motor 14, and a resistor 18 mounted on a part of the windscreen swept by the wipers, and the resistance of the resistor 18 is so reduced when sufficient water is deposited on said windscreen part that a means sensitive to such resistance, e.g. a controlled rectifier 15 is energized to complete a circuit in parallel with the switch 17 so that the wiper motor 15 becomes energized. The resistor 18 may comprise two closely spaced metallic foil parts having interdigitated arms. In two alternative circuits the resistor 18 controls the operation of a transistor amplifier the output of which controls the rectifier 15. In a further circuit the rectifier 15 is replaced by a solenoid operated relay. A torque switch may be associated with the wiper motor so that in the event of the wiper motor being energized as a result of a deposit of dirt on the resistor 18, the torque switch may be closed to energize a windscreen washer motor.
Patent GB-1447009-A (GB)
Title: Method of printing or dyeing webs of material
IPC: B41F15/40
Filed: 1974-08-08
Abstract: 1447009 Screen printing P ZIMMER 8 Aug 1974 [16 Aug 1973] 35082/74 Heading B6C A web of material is printed with sublimable dyestuff using a stencil. As shown in Fig. 1, powdered dyestuff 18 is entrained in a carrier gas, and the mixture heated to sublime the dyestuff, and fed to the interior of hollow chamber 2 inside stencil 1. Chamber 2 has outlet 3 adjacent the stencil. In alternative forms, the dyestuff may be sublimed inside chamber 2. The chamber 2 is preferably preceded by a chamber which preheats the stencil, and followed by a chamber which cools the stencil. In the form shown in Fig. 10, a foil 49 carrying the sublimable dyestuff is passed outside the stencil adjacent the web 4 to be printed. Heater 46 on the opposite side of the stencil to the foil irradiates the stencil, and radiation only impinges on the foil where allowed by the stencil, thus producing printing corresponding to the stencil.
Patent GB-1248144-A (GB)
Title: Improved compressor
IPC: F04B39/12
Filed: 1969-07-11
Abstract: 1,248,144. Compressors. COPELAND REFRIGERATION CORP. July 11, 1969 [July 26, 1968], No.35168/69. Heading F1N. A compressor comprises equi-spaced radial cylinders 11, 12, (13), (14) each containing a piston 60 reciprocated by a crank-shaft 20, one end of the crank-shaft being in the form of a cylindrical male bearing portion 22 running in a bore provided in a housing wall 31 defining a chamber 92 supplied with lubricant. Lubricant is fed to the chamber 92 through a pressure reducing capillary tube 91 leading from the bottom of a chamber 84 pressurized by compressed gas discharged from the cylinders. Passages 95, 96, 97 in the crank-shaft 20 allow lubricant in the chamber 92 to reach the main bearing 16. The crank-shaft 20 is driven externally via a pulley 51 incorporating an electromagnetic clutch 50, 52, 54. Each pair of pistons 60 is attached to a Scotch yoke 25 or 26 in which is fitted a slide block 65 or 67 rotatable on the crank-pin 21. Gas enters the compressor through an inlet 44 and flows to the cylinders through valve controlled ports 74 in the pistons. The gas compressed in the cylinders passes out through ports in a valve plate 77 controlled by a valve 78 secured in position by a boss 87 on a cylinder head 81. After passage through ducts 82, 83 and the chamber 84 the compressed gas passes to an outlet 88.
Patent GB-343549-A (GB)
Title: Improvements in shock absorbers
IPC: F16F9/22
Filed: 1929-11-18
Abstract: 343,549. Hydraulic shock-absorbers. BERG, F. H., Talbot Avenue, Balwyn, Victoria, Australia. Nov. 18, 1929, No. 35191. Convention date, Dec. 20, 1928. [Class 108 (iii).] Hydraulic vibration-dampers of the one-way type in which a cylinder having a vertical piston 7 raised by a spring 8 and depressed by the operating lever 9 communicates by a one-way valve 16 and loaded relief valve 20 with a reservoir, are provided with means, to avoid the trapping of air in the upper end of the piston 7, consisting of (1) a wooden or other core 13 shaped to form an annular recess into which the spring is compressed when the piston is in its lowest position to prevent any accumulation of air, and (2) an air release port 14 arranged in the piston at a sufficient distance from the top to prevent it from rising above the top edge of the cylinder and to ensure that it is normally covered by the oil in the cylinder. The port 14 communicates with a shallow vertical groove 15 in the outside of the piston. On the upward stroke, oil flows readily into the cylinder through the oneway valve 16 controlled by a light spring 17, the valve body being held down on to the bottom of the cylinder by the spring 8. An external adjusting screw 23 regulates the pressure at which the relief valve 20 operates. One or more small leakage ports 19 are formed in the seat of the valve 16.
Patent GB-966269-A (GB)
Title: Fused cast refractory and method of making
IPC: C04B35/107
Filed: 1962-09-17
Abstract: A fused cast refractory comprises, in mol. per cent by analysis, 0.06 to 2.63% fluorine, 0.36 to 16.5% alkaline earth metal oxide or oxides, the remainder being alumina.  The crystal structure may comprise crystals of corundum and at least one of the group consisting of spinel and alkaline earth metal hexaluminates as well as very fine randomly dispersed islands of a crystalline fluoride. Impurities, e.g. alkali metal oxides, SiO2, Fe2O3 and TiO2 should not exceed 2 mol. per cent of the refractory.  Fluorine may be incorporated in the molten refractory mixture by adding a metal fluoride to the refractory ingredients or by bubbling fluorine gas through the molten mass.  The metal fluoride may be selected from those having a boiling point of at least 1200 DEG  C. and may include fluorides of sodium, magnesium, calcium, barium, strontium, and aluminium. Mixtures of or complex metal fluorides may also be used, e.g. cryolite. The refractory may be made by granulating and mixing the ingredients, melting, casting, and annealing them.  The pouring temperature may be 2030-2050 DEG  C.  Tables show typical compositions of melts and their thermal shock characteristics and moduli of rupture.  The refractory may be used in steel melting, electric-arc furnace roofs, glass melting tank roofs, furnace checkers, and high temperature metal annealing furnaces. Specification 265,847 is referred to.