baber/WOPTO huggingface dataset:
Patent GB-1428757-A (GB)
Title: Electrooptical apparatus
IPC: G01N21/89
Filed: 1973-10-16
Abstract: 1428757 Photo-electric measuring systems LOEPFE A G GEBR 16 Oct 1973 [21 Dec 1972 15 June 1973] 48117/73 Heading G1A The diameter of a yarn is measured by causing it to obstruct one of two alternately generated light beams, the other beam being used as a reference. The signals from a single detector are separated by a synchronous demodulator. A plurality of sequentially generated measuring beams may be used for a plurality of yarns with a common reference Fig. 6 (not shown). The measuring system is stated to have many other uses e.g. measuring turbidity density, colour mark scanner, web edge position etc. and may make use of reflection instead of obstruction Fig. 5 (not shown). As illustrated Fig. 1, beams Fl, F2 are generated by LED's 1, 2 energized from squarewave generators 19, 20 triggered by the two outputs of a multi-vibrator 3. Beam Fl is obstructed at least in part by yarn F. The signals from sensor 4 (e.g. a photo-diode) are amplified at 22 and passed to separators 23, 24, such as a ring modulator or phase dependent rectifier deriving their reference phases from the respective LED energizing signals P1, P2. The reference signal from 24 is compared at 26 with a nominal value 25 to control the gain of amplifier 22. In an alternative circuit Fig. 4 instead of controlling the gain of the amplifier the separated measuring signal is applied to an operational amplifier 31 having its negative input connected to a multiplier 30 as shown. A three beam system with two measuring channels is illustrated in Fig. 6 (not shown). Beam "phasing" is controlled by a multi-vibrator and three-step shift register. The system is stabilized by arranging for the reference channel signal to control the intensity of the beams to maintain a nominal reference signal value. A biased diode threshold control for varying the beam intensity is illustrated in Fig. 7 (not shown). The light pulses may be provided alternatively by light valves e.g. Kerr cells. CONSTRUCTIONAL DETAILS. The sources and sensor may be arranged in one box with windows formed by a collimating lens and a focusing lens between which the thread passes Fig. 3 (not shown). A diaphragm may control the reference beam intensity to compensate for ageing or dirt.
Patent GB-1467855-A (GB)
Title: Method of colouring glass fabrics
IPC: C03C25/10
Filed: 1974-11-08
Abstract: 1467855 Colouring glass fabrics TOYO BOSEKI KK 8 Nov 1974 [9 Nov 1973] 48426/ 74 Heading D1B Glass fabrics e.g. glass wool, threads, filament yarns, knitted fabric, woven or non woven fabrics are coloured by treating the fabric with a combination of at least one sulphur-oxygen containing acid or acid salt thereof, or peroxy acid or water-soluble salt thereof, with at least one other organic or inorganic water soluble salt, prior to dyeing with a basic dye. The compounds may be applied singly or in admixture at 0C to the boiling point of the treating aqueous solution optionally under elevated pressure, using dipping, padding, spraying or coating methods. The fabric may be washed and dried prior to dyeing. Dyeing may be by exhaustion, cheese dyeing or piece dyeing methods and printing. The fabrics may contain fireproof acrylic, modacrylic, vinylidene chloride, polychal, and modified synthetic polyamide fibres.
Patent GB-1203802-A (GB)
Title: Improvements in or relating to echo suppressors
Inventor: KELLY JOHN L JR
IPC: H04B3/23
Filed: 1967-10-26
Abstract: 1,203,802. Echo suppressors. WESTERN ELECTRIC CO. Inc. 26 Oct., 1967 [31 Oct., 1966], No. 48663/67. Heading H4R. In a long-distance system such as one involving a communication satellite having oneway channels 16, 26 separated at the terminals by the usual hybrid arrangements, the echo currents arriving over the incoming channel are applied to a tapped delay line 100 from which the outputs, after passing through gain-adjusting networks 110, are fed to a summing amplifier 120 and subtracted from the outgoing signals in a network 130. Each delay element may impart a delay of 0À1 ms. and an additional fixed delay 102 may be switched in if desired. As the outgoing signals are subject to erratic variations of level, an error signal control 118 is connected to the outgoing channel, and its output is combined with the outputs of the delay line 100 in multipliers 112 and integrators 113 to control the gain-adjusting networks 110. The control 118 is preferably a non-linear circuit using an infinite clipper.
Patent GB-487790-A (GB)
Abstract: 487,790. Two-part couplings. BOSCH AKT.-GES., R,. Dec. 23,1936, No. 35329. Convention date, Dec. 23, 1935. [Class 38 (i)] [Also in Group XXVII] A connecting member n consists of an insulating plug o with a fine wire core p, for entering a recess in the outer end of the spark plug, and a metal-sheathed socket q for receiving the cable-end m. A conical rubber washer s is clamped in the outer end of the sheathing t and armour u. Both the member n and sheath t are formed with flanges x, v engaged by a nut w. A plug of graphite e or like material of low thermal conductivity interrupts the continuity of the central electrode.
Patent GB-1407686-A (GB)
Title: Assistance welding electrode holders
IPC: B23K11/31
Filed: 1972-10-25
Abstract: 1407686 Welding by pressure J H BREMS 25 Oct 1972 [26 Oct 1971] 49197/72 Heading B3R A resistance welding electrode holder for attaching an electrode to a resistance welding machine actuator 8 comprises a first member 10 in overlapping spaced relationship with a second member 12, the first member 10 being connectible to or forming part of the actuator 8 and the second member 12 being connectible to the electrode, elastic electrically insulating means 14 interposed between and attached to the members in the space between them to provide elastic shear resistance to relative axial motions of the members and co-operating means 16, 18 connected to the members to exert a preload on the means 14 between the members. The first member 10, a sleeve, is mounted in a guide bearing 6 in a frame 4 and is welded to an actuator rod 8 extending from an air or hydraulic cylinder. Alternatively the end of the rod 8 may be drilled out to provide a sleeve. The second member 12 in the form of a rod is mounted within the sleeve 10 by two elastic bushings 14 bonded to the sleeve and rod, the bushings being of urethane resins, neoprene &c. The electrode is connected to one end of the rod 12 by a flange, taper, reverse taper &c. connection and an insulating washer 22 of urethane resin, reinforced phenolic or melamine is provided between the other end of the rod 12 and the rod 8. A sleeve 16 of rigid insulating material, polycarbonate plastic or fibre glass reinforced urethane, is screwed to sleeve 10 and bears against a metal flange 18 welded to the rod 12 through an elastic washer 20 to initially stress the bushings 14.
Patent GB-1249348-A (GB)
Title: Ground-effect vehicles
Inventor: GIRAUD FRANCOIS LOUIS
IPC: B60V3/04
Filed: 1968-10-17
Abstract: 1,249,348. Ground effect machine; railway systems. SOC. DE L'AEROTRAIN. 17 Oct., 1968 [19 Oct., 1967], No. 49252/68. Headings B7K and B7L. A propulsion device for a ground effect machine comprises a compressor 16 and a motor 16a for supplying pressurized air through a manifold duct 15 from which deflectors 17 and 18 respectively connect duct 15 to the supporting cushions 3a and 3b and guiding cushions (4a, 4b, Fig. 3, not shown) so that on entry to the cushion and/or exit through movable element 27 of wall 9 the fluid has a force component directed along the main axis of the machine. The movable elements 27, which are initially closed, pivot about pins 30 and open once a certain degree of superatmospheric pressure has been reached; they are controlled by levers 39 and jacks 43 which can be operated from the driver's position. Deflector 17, associated with lift cushion 3a, is in the form of a plate 34 operated from the driver's position by a control rod 37. Deflectors 17a, 18 associated with cushions 3a, 4a, 4b have four smaller deflectors 19a-19b assembled between two parallel plates 20 and projecting into the interior of the duct 15; the assembly is controlled by cable 38 and is pivoted about pins 21 and biased by springs 23. Propulsion can also be provided by a variable exit area nozzle 45 controlled by a movable restrictor 50. As the speed increases the flow of fluid in the main duct 15 of the machine is increased by the ram effect. The machine can be supported on a track (2, Figs. 4, 5, not shown), in the form of an inverted " T " and having slots disposed longitudinally or transversely in the base of the track to guide the air flow. A panel (46, Fig. 4, not shown) extending parallel to the surface of the track and in the vicinity of the track may be fixed above the track so as to guide the airflow and provide a platform.
Patent GB-1199992-A (GB)
Title: Absorption Refrigeration Systems Having Solution-Cooled Absorbers
IPC: F25B37/00
Filed: 1967-10-30
Abstract: 1,199,992. Refrigerating. CARRIER CORP. 30 Oct.,1967 [17 July, 1967], No. 49294/67. Heading F4H.  An absorption refrigeration system includes a solution-cooled absorber in addition to primary absorber coils 60, 61, the solutioncooled absorber comprising a shell 14, which is disposed within an outer shell 31 and contains a column of strong solution supplied by pipe 50, a heat exchange coil 33 carrying relatively weak solution to the generator 13, and a header 40 which receives refrigerant vapour from the evaporator and passes part of the vapour upwardly into shell 14 through apertures 42. Unabsorbed vapour and non-condensible gas pass out of shell 14 through its perforated top 32 into the space 29 between the shells while solution passes to space 29 through an outlet 51. The remainder of the refrigerant vapour from the evaporator passes directly to space 29 through apertures 43 in header 40. Outlet pipes 54, 55 are arranged in space 29 with their open ends 56 disposed above the liquid level therein and have apertures 57 below the liquid level so that the pipes supply a mixture of solution and refrigerant to primary absorber coils 60, 61. The interior of the shell 14 is provided with baffles 35 on a central support 38 and a packing 37, such as Raschig rings, prevents the escape of solution through the top wall 32. Space 29 may be omitted and the remainder of the refrigerant passed directly to absorber coils 60, 61. The remainder of the system is substantially the same as that described in Application No. 49293/67.
Patent GB-1324498-A (GB)
Title: Colour cathode ray tubes
IPC: C09K11/79
Filed: 1971-10-27
Abstract: 1324498 Cathode-ray display tubes TOKYO SHIBAURA ELECTRIC CO Ltd 27 Oct 1971 [31 Oct 1970] 49827/71 Heading H1D [Also in Divisions C4 and H4] A colour C.R.T. comprises a fluorescent screen 4 formed on the inner surface of the C.R.T. faceplate and made of a mixture of cerium activated yttrium aluminate (Y 3 Al 5 O 12  : Ce) and cerium activated yttrium silicate (Y 2 SiO 5  : Ce or Y 2 Si 2 O 7  : Ce). Metal back layer 5 (e.g. Al) may be included and the fluorescent screen may be 10 to 20 Á thick. The phosphor luminesces over the entire visible range. Colour flying spot scanning application is instanced, preferably with 0À1 Ásec. decay time and luminous in the 4000 to 7000  range. Fig. 2 shows fine granules 10 and 11 of the respective phosphors uniformly distributed. Fig. 3B (not shown) illustrates the noise-free effective straight portion S at front and rear edges of the luminescent pulse determined by build-up and residual light characteristic. Fig. 4 (not shown) illustrates emissions v. wavelength curve O illustrating enhanced blue emission and curve P a photomultiplier response. The C.R.T. light may scan a cinematographic film through an optical lens, the light transmitted through the film being divided into three portions and projected through colour filters, red, green and blue, as curves B, G, R, in Fig. 4 (not shown). Reference is made to high blue sensitivity photomultipliers which are suitable for use with a C.R.T. with less blue component than red. Fig. 5 (not shown) illustrates resolution v. spot scanning rate. A fluorescent screen may be prepared by firing mixes at 1000 to 1300 C. and 1100 to 1500 C., respectively, to produce 0À4 Á and 5 Á particles of the respective phosphors. Tnese phosphors with 10% by wt aqueous solution of a silicate were mixed at a wt. ratio of 1 : 1 : 10 in a ball mill with 15 to 20 mm. ceramic balls. The resultant, with 2% by wt. aqueous solution of barium nitrate, was passed through a filter to remove foreign substances and deposited on the faceplate by precipitation. In another example, 5 Á phosphor particles were mixed with a 10% aqueous solution of water-glass in wt. ratio 1 : 1 : 50, 2 : 1 : 20, or 1 : 3 : 20, the resultant phosphor and aqueous solution of potassium sulphate being deposited on the face-plate. Alternatively the phosphors may be kneeded in a polyvinyl vessel and 10% P.V.A. solution added to form slurry, placed on glass substrate face-plate, rotating and inclined, to obtain a 0À1 to 7 mg./cm.<SP>2</SP> layer, the assembly being heattreated at 450 C. after fusion to the C.R.T. funnel.
Patent GB-1427375-A (GB)
Title: Disposable filter-package for the preparation of coffee infusion
IPC: B65D85/804
Filed: 1973-10-26
Abstract: 1427375 Coffee filter and package MIKO NV 26 Oct 1973 [30 Oct 1972] 50081/73 Heading A4E [Also in Division B8C]  A filter package for the preparation of a coffee infusion comprises at least two chambers 8, 9 one above the other, each chamber containing a measure of coffee 10, 11, the chambers being defined by water-permeable walls 5, 6, 7. As shown, the filter package has walls 1 of a synthetic material, the walls having shoulders 2, 3, 4 to which are welded the filtering walls 5, 6, 7. The coffee in one chamber may differ from that in the other, e.g. in the manner in which it has been roasted or ground, and the amount of coffee in each chamber relative to chamber size is specified. The package may be a disposable cartridge for insertion in a brewing apparatus or, as indicated by the dotted lines in the drawing, the package may be formed as a complete filter and water container.
Patent GB-1036513-A (GB)
Title: Metallized sheet electrodes
IPC: H01M4/86
Filed: 1963-12-19
Abstract: A sheet material suitable for use as an electrode in a fuel cell (see Division H1) comprises (a) 20% to 60% of fibrous support, (b) 1% to 25% of water-repellent compound and (c) 25% to 65% of metallic catalyst, the percentages being based on the weight of the material. It may be made by forming a mixture of water-repellent compound, finely divided metallic catalyst and fibrous pulp, sheeting on conventional papermaking equipment and drying.  The fibrous support may be of paper, and polymer of acrylonitrile or copolymer thereof with methyl acrylate or methacrylate, glass fibres, metal fibres, or asbestos and polyvinyl alcohol fibres.  It may be fibrillated, or a mixture of fibrillated and unfibrillated fibres.  The water-repellent agent may be polytetrafluorethylene, styrene-butadiene copolymer, neoprene or silicone rubber.  The metallic catalyst may be platinum, palladium, ruthenium, iron, cobalt, nickel, copper, silver or gold. It may be formed in the pulp by adding an acetate or nitrate or a halogen acid, e.g. chloroplatinic acid, to the pulp and reducing it, e.g. with sodium borohydride.  Alternatively the metal may be added directly to the pulp, e.g. as platinum black.  A composite sheet comprises an inner hydrophilic, non-catalytic fibrous layer and outer electrode layers as defined above.  It can be made by forming wet sheets as above, pressing them together and drying.  In example 7 the outer layers are of fibres of acrylonitrile/methyl acrylate copolymer, platinum and polytetrafluorethylene, and the inner layer of acrylic fibre and glass fibre.  In Example 8, all three layers are of asbestos and polyvinyl alcohol fibres, the outer ones also containing platinum and polytetrafluorethylene.
Patent GB-1049608-A (GB)
Title: Improvements in or relating to typesetting and linecasting machines
IPC: B41B11/06
Filed: 1964-12-11
Abstract: 1,049,608. Type - bar - making machines. LINOTYPE G.m.b.H. Dec. 11, 1964 [Dec. 14, 1963], No. 50481/64. Heading B6W. In a line-casting machine with magazines for holding matrices of different type-body sizes, the speed of assembly and distribution of the matrices is varied in dependence on the magazine matrix-release position, i.e. on the body size of the matrix being released. Magazines 1, 2, 3 for larger-body matrices and magazines 5, 6, 7 for normal-body matrices are shown in Fig. 1, with a large-size-matrix magazine opposite the asembler entry plate 12. The keyboard rollers, the assembler belt pulley, the assembler star member and the distributer spindles are driven from a shaft 38, as also is the sensing mechanism if automatic operation is employed. An expanding pulley 39 is fixed to the shaft 38 and is coupled by a V-belt 33 to a motor 36. Engaging the belt 33 is a roller 32 carried by an arm 28 pivoted at 29 and connected by a link 25 to a lever 21 pivoted at 20 to a bracket 16 and abutting against a screw stop 22 when a large-size-matrix magazine is in release position as shown. The motor 36 now drives the shaft 38 at a relatively slow speed since the belt passes around the pulley 39 with a large drive diameter. If, however, the magazines are moved to bring one of the magazines 5, 6, .7 to release position, a guided rod 15 pivoted at 14 to the magazine, is moved endwise so as to bring a cam-plate 41 on the rod 15 into engagement with a roller 24 on the lever 21, turning the lever in a clockwise direction. The belt roller 32 is thus moved downwardly, and causes the pulley 39 to expand so that the belt runs over a smaller diameter thereof, causing the pulley 39 and the shaft 38 to be driven at a faster speed. Stops 18 on the rod 15 engage abutment means on the bracket 16 to locate the magazines in selected escape positions.
Patent GB-1148489-A (GB)
Title: Improvements in or relating to oil pressure torque amplifiers
IPC: F15B9/14
Filed: 1966-11-10
Abstract: 1,148,489. Fluid-pressure servomotor systems. FUJITSU Ltd. Nov. 10, 1966 [Nov. 10, 1965 (5)], No.50534/66. Heading G3P. An oil pressure torque amplifier comprises a rotational input means 1, an input shaft 6 engaging the rotational input means, a disc 7 coupled with the input shaft, a shaft 14 provided with a pair of slits 16, 17 extending in the circumferential direction, the disc being arranged so as substantially to cover the slits but having apertures 8, 9 that co-operate with the slits to form openings whose areas vary with the relative rotation between the disc and shaft, a spool 38 forming an outer pair of oil chambers 58, 59 and an inner pair of oil chambers 52, 53, an oil inlet 48 and an oil outlet 51, oil routes 37, 33, 21 and 35, 32, 20 which connect the oil inlet with the slits, oil routes 60, 61 which connect the outer pair of oil chambers with the first-mentioned oil routes, a rotary type hydraulic motor 27, the output shaft 28 of the motor being coupled with the shaft with the slits, and oil routes 54, 55 which connect the inner pair of oil chambers with the rotary type hydraulic motor. When the disc 7 is rotated the openings formed by the slits 16, 17 with the apertures 8, 9 cease to be of equal size and a pressure difference appearing downstream of restrictions 30, 31 is applied to the chambers 58, 59 to displace the spool 38 and connect motor conduits 54, 55 to the oil inlet and outlet 48, 51. The motor rotates the shaft 14 until the openings from the slits 16, 17 are again if equal size and the spool 38 restored to its central position. To prevent the spool 38 from sticking, an alternating pressure difference is created between the chambers 58, 59 by a further pair of restrictions 66, 67 elastic tubes 62, 63 and a hinged valve member 76 oscillated by an electromagnet 80. Relative rotation between the disc 7 and the shaft 14 is limited to 90 degrees and abrupt angular input displacements in excess of this value are temporarily absorbed by a spring 5. In a modified construction, slits extending over almost the whole circumference of the disc are provided on opposite faces of the latter and the permissible relative rotation is increased to 180 degrees.
Patent GB-506485-A (GB)
Abstract: 506,485. Magnesium. GENTIL, H. L. Oct. 17, 1938, No. 30041. [Class 82 (i)] Oxidized compounds of magnesium are reduced by means of a sulphide of a metal which is non-volatile at the temperature of reduction, e.g. iron, manganese, nickel, or tin. If tin sulphide is used, the tin can be completely separated from the other elements present and recovered. The reaction may be carried out under reduced pressure.
Patent GB-1406750-A (GB)
Title: Oil-in-water emulsions containing starch esters
IPC: A23L29/10
Filed: 1973-10-31
Abstract: 1406750 Salad dressing C P C INTERNATIONAL INC 31 Oat 1973 [31 Oct 1972 3 Aug 1973] 50708/73 Heading A2B [Also in Divisions A5, B1 and C3]  A salad dressing comprises an oil in water emulsion containing a minor proportion by weight of a starch ester of at least one aliphatic carboxylic acid having 2-4 carbon atoms the starch ester having a degree of substitution of 0.05-1.0 (see Division 03).
Patent GB-1279485-A (GB)
Title: Process for preparing high silica faujasite
IPC: C01B39/20
Filed: 1969-10-17
Abstract: 1279485 Alumino-silicates W R GRACE & CO 17 Oct 1969 [17 Oct 1968] 51241/69 Heading C1A A crystalline zeolite alumino-silicate having the faujasite structure and a high silica : alumina ratio is prepared by mixing clay comprising silica and alumina with sufficient alkali metal silicate to form a reactant mixture having a silica : alumina ratio near to or the same as that of the desired zeolite product, mixing said reactant mixture and about 0À1 to 10% based on the weight of the final product of zeolitic nucleation centres with an alkaline solution of alkali metal silicate, heating to about 60 to 150 C. until crystallization of the zeolite is complete, and washing and recovering the zeolite product. The alkali metal silicate may be an aqueous solution of a hydrated alkali metal silicate preferably water glass or sodium silicate. The clay may be a kaolin clay preferably metakaolin. The reaction may be carried out for a period of from 10 minutes to 30 hours. The silica : alumina ratio of the reaction mixture is 4.5 : 1 or more.
Patent GB-1389510-A (GB)
Title: Preparation of delta-keto-esters
IPC: C07C/
Filed: 1973-11-05
Abstract: 1389510 Delta keto-esters STAMICARBON BV 5 Nov 1973 [11 Nov 1972] 51293/73 Heading C2C # Keto-esters are prepared by the liquid phase reaction of an α-# unsaturated carboxylic acid ester and a ketone in which at least one hydrogen atom is in the α position, with the aid of a primary amine and/or Schipp base as catalyst in the presence of a compound capable of providing an acid reaction in water and/or containing a functional acid group. The α-# unsaturated carboxylic acid ester used is, preferably, the methyl or ethyl ester of acrylic acid, methacrylic acid or crotonic acid. The ketone starting material may be, e.g. acetone, methyl ethyl ketone, methyl propyl ketone, diethyl ketone, methyl isopropyl ketone, cyclopentanone, cyclohexanone, 2-methyl cyclohexanone or 4-methyl cyclohexanone.
Patent GB-980167-A (GB)
Title: Tool holding chuck
IPC: B23B31/20
Filed: 1963-12-31
Abstract: 980,167. Chucks. I. M. OLIVER, and J. BROWN. Dec. 31, 1963, No. 51407/63. Heading B3B. A cutter - holding collet chuck comprises a collet 7 projecting from a body 1 and having a screw - threaded portion to engage a co-operating part on a cutter and a frusto-conical member 15 screwed on to the body and engaging conical surfaces on the collet and on the body. Rotation of the collet 7 is prevented by pins 11. The end of the cutter is recessed to engage a tapered insert 12.