baber/WOPTO huggingface dataset:
Patent GB-1324245-A (GB)
Title: Installation or plant control device in particular for gas-turbine power plants
IPC: F02C9/32
Filed: 1970-11-09
Abstract: 1324245 Gas turbine engine fuel systems SOC NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION 9 Nov 1970 [14 Nov 1969] 53269/70 Heading F1G A fuel metering valve 9 is acted on at one end by the fuel supply pressure P 1  and at the other end by a pressure P A  derived from the pressure P 1  and a low pressure P 0  via a potentiometer consisting of a valve 21 and a fixed restrictor C. Any error between the actual engine speed, as sensed by a governor 16, and the desired engine speed, as set by a manual control 15, displaces the valve 21 to alter the pressure P A  from the equilibrium valve, resulting in a movement of the metering valve 9 which continues as long as the speed error persists, the control of the metering valve therefore being of integral action type. A valve 22, operated conjointly with the valve 21 but in the opposite sense, forms, with a fixed restrictor D, a potentiometer connected in parallel with the metering valve 9 to derive a pressure P B  which is used to control a by-pass valve 11 which can return fuel from the outlet of the fuel pump 10 to its inlet, whereby the pressure drop P 1 -P 2  across the metering valve is controlled as a function of the engine speed. The valve 11 is spring-loaded so that the control is of proportional action type, and is acted on at one end by the pressure P 1  and at the other end either directly by the pressure P B  or as shown, by a pressure P 3  controlled by the pressure P B  through a servovalve 50. The pump 10 may be of variable displacement type, the control of the pressure drop P 1 -P 2  then being effected by varying the displacement instead of by use of a bypass valve 11.
Patent GB-1124969-A (GB)
Title: Method and apparatus for automatic centering system
IPC: G05D3/14
Filed: 1965-12-17
Abstract: 1,124,969. Profile recorders. BENDIX CORP. Dec. 17, 1965 [Dec. 21, 1964] No.53661/65. Heading G1N. In a rotary profile recorder in which a tracer is rotated about a stationary cylindrical specimen, the output from the tracer is fed, during one or more initial centering operations, to servomotors which automatically adjust the position of the specimen table and the radial distance of the tracer from its axis of rotation. The specimen table (18) is mounted for X and Y travel along horizontal guides, Fig. 1 (not shown), and the tracer (40) is mounted for radial travel along a horizontal guide (41) fixed on a rotatable vertical shaft (32). As the tracer traverses the circumference of the specimen a spring mounted probe (42), Fig. 2 (not shown), moves in accordance with the profile thereby modulating the output of an oscillator (53). As described with reference to Fig. 4 (not shown), a resolver (108) having a rotor driven synchronously with shaft (32) forms the X and Y components of the tracer output which are integrated over one complete revolution of the tracer and fed to X and Y servomotors (52, 50) respectively. Also, an unresolved output from the tracer is integrated and fed to the tracer drive servomotor (54) to position the tracer so that its null position corresponds to the mean radius of the specimen. A variable gain amplifier (96) enables successively more sensitive centering operations to be performed. In another embodiment, Fig. 5 (not shown), in which the centering starts as soon as the tracer is started, the servomotors perform the integrations themselves, centering being completed during a set number (preferably one) of tracer revolutions after which a relay (186) automatically stops the tracer and energizes a light (192). D.C. tachometers provide linearising feedback. Amplifiers (206, 224, 238) discriminate against harmonics of low amplitude signals but have a high bandpass for large signals, Fig. 6 (not shown).
Patent GB-1235310-A (GB)
Title: Solid state storage panel
IPC: H01J31/08
Filed: 1968-11-13
Abstract: 1,235,310. Electroluminescence. XEROX CORP. 13 Nov., 1968 [18 April, 1968], No. 53852/68. Heading C4S. [Also in Division H1] A storage panel comprises narrow opaque conductors 11 on one surface of a substrate 12, a conductive strip 13 overlaying each conductor, insulating material 15 between adjacent strips, a layer of field effect semi-conductor material 16 and electroluminescent material 14 between the strips and layer 16, the surface 19 of the panel remote from the substrate constituting a charge retaining surface. The panel is prepared by coating a polymethyl methacrylate polymer substrate with Ag flake in epoxy resin, removing unwanted Ag to form the conductors 11, depositing layers of In 2 O 3  in epoxy resin and ZnS phosphor in an epoxy binder, curing and removing portions of these layers leaving strips 13, 14. The space between the strips is filled with clear epoxy resin and a f.e.s.c. layer of ZnO powder in styrene butadiene copolymer applied. In another example Cu wire or Ag strips on a glass substrate are coated with tin oxide or Au. The conducting strips may be in grooves in the substrate, the strips and substrate may be transparent or opaque. Other f.e.s.c.'s are PbO, CdO, ZnS and CdSe and there may be an insulating layer to form the charge retaining surface if the semi-conductor cannot retain surface charge. Alternatively the s.c. may be doped to form a p-n junction which also prevents the passage of surface charge. An image is formed and stored by applying an A.C. potential between alternate conductors sufficient to produce electroluminescence, then applying an electrostatic charge pattern on the surface 19 which reduces or interrupts the current. Alternatively the surface may be unirformly charged e.g. by corona discharge and a pattern neutralized. If the A.C. potential is insufficient to produce electroluminescence positive or negative charges can be applied to an n-type orp-type s.c. to increase its conductivity and produce e.l. If the s.c. is photoconductive the surface is uniformly charged and a pattern removed by exposure to a light image or by scanning with an intensity modulated light beam. The charge pattern can be produced using recording head, a corona discharge through a mask, a moving corona discharge, a pattern of corona discharges or a scanning electron beam when the panel is used as a target for an evacuated storage tube as disclosed in Specification 1,201,374.
Patent GB-1405167-A (GB)
Title: Prevention of shrinkage cavities and voids in metal ingots
IPC: B22D7/00
Filed: 1972-11-22
Abstract: 1405167 Casting processes HEPPENSTALL CO 22 Nov 1972 [7 June 1972] 54052/72 Addition to 1366707 Heading B3F [Also in Division H5] A method of preventing shrinkage cavities in ingots comprises forming a body 22 of degassed molten metal in a mould 10 and then continuously supplying molten metal to the mould by plasma arc melting an electrode 40 at a rate substantially equal to the rate of volume loss by shrinkage on cooling whereby the level of metal in the mould is maintained substantially constant until solidification is complete. The top of the metal in the mould may be heated by the plasma arcs during the melting process. The initial body of metal in the mould may be formed by vacuum stream degassing, the molten metal being supplied from a ladle (15) mounted on top of the vacuum chamber 12 in place of the portion 17. Alternatively, air teemed metal in the mould 10 may be degassed during the evacuation of the chamber 12 preparatory to the plasma arc melting operation.
Patent GB-1527300-A (GB)
Title: Diapers
IPC: A61F13/49
Filed: 1976-12-31
Abstract: 1527300 Diapers COLGATE-PALMOLIVE CO 31 Dec 1976 [5 Jan 1976] 54457/76 Heading A3V A disposable diaper comprises a first pad 36 in the crotch area and at least one other pad 38, 42 of hydrophilic absorbent material, the first pad being of a material (e.g. polyurethane or polyethylene foam) which has a greater wet resiliency than the other pad(s).
Patent GB-1176343-A (GB)
Title: Improvements in or relating to Poultry Plucking Devices
Inventor: COPE RONALD WILLIAM
IPC: A22C21/02
Filed: 1966-12-09
Abstract: 1,176,343. Poultry-plucking machines and devices. COPE, WHELON & CO. Ltd. 8 Dec., 1967 [9 Dec., 1966], No. 55255/66. Heading A2U. A machine, Fig. 1, for plucking carcases of poultry comprises an upper row 12 and a lower row 13 of rotary plucking devices arranged on each side of the path along which the carcases pass through the machine. Each device comprises a plurality of flexible plucking fingers 2 mounted on a rotatable disc 1 and extending substantially parallel to its axle 3, which is connected, by a conventional flexible coupling 5, to the driving shaft 10 of an electric motor 11. A shielding wall 14 is preferably provided to prevent plucked-out feathers from reaching and contaminating or choking the flexible couplings and electric motors. The flexible coupling 5 enables the fingers 2 of each rotating plucking device to engage gently and follow the contour of a carcase.
Patent GB-1460574-A (GB)
Title: Prevention of fuel theft
IPC: B60K15/04
Filed: 1973-11-30
Abstract: 1460574 Preventing theft of fuel from vehicles GRANBY MARKETING SERVICES Ltd 13 Jan 1975 [30 Nov 1973] 55576/73 Heading B7H An anti-theft device for preventing insertion of a syphon tube into a vehicle fuel tank comprises a coil spring, e.g. of steel wire, which in use is positioned in the fuel inlet pipe with its smaller diameter end nearer the fuel tank. The wire preferably has a breaking strain no greater than 70 tons/sq. inch.
Patent GB-1224296-A (GB)
Title: Improvements in or relating to fluid valves
Inventor: RIHM HERBERT
IPC: F16K1/14
Filed: 1969-11-13
Abstract: 1,224,296. Valves. HONEYWELL G.m.b.H. 13 Nov., 1969 [14 Nov., 1968], No.55585/69. Heading F2V. A valve comprises a closure member 15, having a cross-section which includes an arc of a circle, e.g. part-spherical, supported by an eccentric part 13 on a shaft 4, such that rotation of the shaft moves the member 15 towards or away from a slot 19 to control flow through an inlet 2 and outlet 3, and guide ribs 21 which cause the centre of the spherical face to follow a straight line path GD towards or away from the seat 19, and the closure member to rotate about an axis extending through the centre and parallel to that of the shaft 4. The member 15 is guided laterally by two further ribs (23), Figs. 2 and 3 (not shown), and the ribs 21, (23) define flow passages 24 having a total cross-section at least as great as that between the seat and member 15 when the valve is open. A stop surface 29 abuts the shaft 4 to limit the opening of the valve. The axis A of the eccentric part 13 is off-set from the valve axis, in the closed position, to limit the torque required to hold the valve closed. The interior of the housing is curved at 25 and 26, and the shaft bearings are tapered at 30, to reduce the flow resistance of the valve. The member 15 can have a sealing ring 16, or be made from a single piece of metal. The closure member may be guided by three ribs. The ribs can extend helically.
Patent GB-1276519-A (GB)
Title: Catalyst system containing noble metal halides and aryl halo compounds and preparation of organic isocyanates therewith
IPC: C07C263/14
Filed: 1969-11-21
Abstract: 1276519 Organometallic/noble metal catalyst OLIN CORP 21 Nov 1969 [21 Nov 1968] 57067/69 Heading B1E [Also in Divisions C2 and C3] A catalyst comprises either a mixture or a complex of (a) at least one aryl halo compound of formula R m MX n  wherein R is C 6 -C 12  aryl, M is an element of Groups IIb, IIIb or IVb and having a valency v, X is Cl, Br or I, m and n are 1 or 2 and m+n=v, with (b) at least one noble metal halide or oxide. Specified noble metals are Ru, Re, Rh, Pd, Os, Ir, Pt, Ag and Au. Elements specified for "M" are Zn, Cd, Mg, B, Al, Ga, In, Th, Si, Ge, Sn and Pb. The catalyst may also contain one or more oxides of Fe, Cr, Mo, Nb, Ta, W and V. The preferred ratio of aryl halo compound to noble metal compound is between 0.1 to 10. The catalyst may be self-supported or deposited on a carrier, those specified being alumina, silica, carbon, barium, sulphate, calcium carbonate, asbestos, bentonite, diatomaceous earth and fullers earth. Examples are given for catalysts comprising PdCL 2  with Ph 2 PbCl 2 , Ph 2 SiCl 2  Ph 2 GeCl 2 , PhBCl 2 , and PhMgCl, and RhCl 3  with Ph 2 PbCl 2 , Ph 2 GeCl 2 , and PhBCl 2 .
Patent GB-1472547-A (GB)
Title: Wire screens
IPC: B01J23/00
Filed: 1973-12-11
Abstract: 1472547 Making wire screens BEKAERT SA NV 28 Nov 1974 [11 Dec 1973] 57430/73 Heading B3A [Also in Divisions B1 and D1] A process for producing wire screens of the type having a set of parallel screening wires 1 supported on a set of supporting wires 2 or of the type having one or more screening wires helically wound about a set of supporting wires and having an average slot width which is less than 25 Ám comprises compressing a screen of the type referred to along the longitudinal axis of the supporting wires to narrow the width of slots 3 between the screening wires to less than 25 Ám, e.g. 7 Ám. The screens of cylindrical form are suitable for high pressure filtration. The screen, prior to compression, has a slot width of at least 25 Ám. The screening and supporting wires are of isosceles triangular cross-section with rounded apices and the ratio of cross-sectional area of the supporting wires to that of the screening wires is less than 4 : 1. The distance between adjacent supporting wires is 5 to 25 times the screening surface of each screening wire 1. The wires 1, 2 are made of stainless steel, N-Mo, Ni-Cu and Mn-bronze alloys and are welded together at their apices. The supporting wires are at least as ductile as the screening wires and may be in an annealed condition. Compression of the screen is effected at elevated temperature and retaining members may be used to prevent formation of kinks in the wires 1, 2.
Patent GB-1291985-A (GB)
Title: Vacuum operated compound pump or air compressor
Inventor: GRAHAM GEORGE COOLEY
IPC: F01L33/04
Filed: 1969-11-24
Abstract: 1291985 Vacuum operated motors driving compressors G C GRAHAM 24 Nov 1969 [25 Nov 1968] 57458/69 Headings F1N and F1M A reciprocating, vacuum operated, air compressor comprises a motor diaphragm 17 dividing a casing 11, 12 into working chambers 18, 19, a valve 142 operable to connect one chamber to vacuum while connecting the other chamber to atmosphere, pumping pistons 66, 91 connected by a rod 36 to the diaphragm, and a seal 49 sealing an opening 48 in the casing 12 through which the rod 36 passes. Air is compressed in two stages; firstly in a chamber 67 by upward movement of the piston 66; secondly in a chamber 92 by downward movement of the piston 91. The first stage chamber 67 receives air from the space between the pistons, during the downward stroke, through passages 74, 72 in the piston 66, the space between the pistons being in communication with the atmosphere through a filter 106. During the upward stroke an O-ring 69 cuts off communication between the passages 74, 72 and air in the chamber 67 is forced through cross passages 121 into an axial passage 82 in a rod portion 81. The increase in pressure in the passage 82 opens a spring loaded valve 84 to enter the second stage chamber 92 for subsequent further compression and discharge through an outlet valve 112. Extending axially from the diaphragm 17 through a casing seal 26 is a rod 23. This rod 23 is used to actuate the valve 142 through linkage, Fig. 5, and Figs. 2-4 (not shown). Thus reciprocation of rod 23 results in oscillation of a bar 171 and a connected valve actuator 151 provided with a mechanism which causes the oscillations of the actuator to occur with a snap action. Depending from the valve actuator is a pin (148) which engages in an arcuate slot (149) in the valve 142, the pin causing the valve to be moved alternately from one end position to the other. In each end position the valve is held by a spring detent and vacuum applied to a central port 133 is communicated to either port 137 or port 136, leading respectively, to the chambers 18, 19, whereby the diaphragm is caused to reciprocate.
Patent GB-1320449-A (GB)
Title: T2-phosphonobutane 1,2,4-tricarboxylic acid compounds process  for their preparation and their use as complex formers
IPC: C11D3/00
Filed: 1971-12-15
Abstract: 1320449 Sequestering BAYER AG 15 Dec 1971 [16 Dec 1970] 58247/71 Heading C1C [Also in Divisions C2 and C5] Alkaline earth metal ions, e.g. calcium, are sequestered by treating them in aqueous solution with a compound of the formula or an alkali metal, ammonium or amine salt thereof wherein R is H, C 1 -C 4  alkyl or COOH and R<SP>1</SP> is H or CH 3 . The sequestering agent may be used in admixture with a diluent or carrier and a wetting agent, emulsifier, antifoaming agent, bleaching agent or disinfectant may also be present.
Patent GB-1420969-A (GB)
Title: Systems for regulating the elevation of motor vehicle headlamps
IPC: B60Q1/105
Filed: 1972-12-18
Abstract: 1420969 Adjusting vehicle headlamps ROBERT BOSCH GmbH 18 Dec 1972 [22 Dec 1971] 58254/72 Heading F4R [Also in Divisions G2-G3] A servomotor 5 controlling the inclination of a vehicle headlamp has an output diaphragm 31 connected to the headlamp via stem 6, the underside of the diaphragm being exposed via line 4 and check valve 54 to the pressure in a vacuum reservoir 3 while the upper side of the diaphragm is subjected to a control pressure established by connecting chamber 37 to vacuum chamber 47 or atmospheric pressure chamber 38 by means of a valve 51 defined by the central region of the diaphragm 31 and the end of a rod 25 responsive to movement of a further diaphragm 20 exposed at 15, 16 to signal pressures indicative of movement of the rear and front axles 11, 13 respectively.
Patent GB-1215722-A (GB)
Title: Processes for tempering glass and vitro-crystalline materials
Inventor: BOFFE MAURICE
IPC: C03C21/00
Filed: 1967-12-22
Abstract: 1,215,722. Treating glass. GLAVERBEL. 22 Dec., 1967 [24 April, 1967], No. 58384/67. Heading C1M. Glass or vitro-crystalline bodies are given compressive surface stresses by causing alkali metal ions to diffuse into the surface layers from a contacting medium in exchange forsmaller alkali metal ions at a temperature which is not sufficiently high to allow complete stress relaxation to occur, the ion exchange being promoted by additionally including alkaline earth metal ions in the contacting medium. The contacting medium is preferably in molten form and may additionally contain a compound providing halogen ions or a compound which acidifies or increases the acidity of the medium, e.g. compounds providing metal ions in valency state of 3, 4 or 5 such as Al<SP>+3</SP> ,  Sn<SP>+4</SP> ,  Ti+<SP>4</SP>, Bi+<SP>5</SP> or a compound providing ions which show an affinity for alkali metal ions diffusing out of the body, e.g. gives rise to the formation of a complex such as one of the group Fe, Co, Ni, NH 4 +, CN-. If the halogen compound is gaseous, it may be bubbled through the contacting molten medium. The ion exchange may also be promoted by an electric field. In one example a borosilicate glass of composition by weight 66-78% SiO 2 , 8-54% B 2 O 3 , 13-38% Na 2 O, 0.30% K 2 0, 0.40% CaO, 9-70% Al 2 O 3  having an annealing temperature of 555‹ C. was immersed in a bath of molten KNO 3  at 450‹ C. for 25 hours. The bath also contained a concentration of 1.5% by weight of Ca<SP>++</SP> ions. The breaking strength was 110 kg./mm.<SP>2</SP>. A soda-lime glass 70-4% Si0 2 , 12À78% Na 2 O, 12-14% CaO, 1.92% Al 2 O 3  was similarly treated but the bath contained Mg<SP>+</SP> + ions in place of Ca<SP>+</SP> + ions. In a further example a treatment bath of rubidium nitrate was used containing 1-5% by weight CaBr 2 .H 2 0. Further a lithium glass, 54% SiO 2 , 34% A1 2 0 3 , 10% Li 2 O, 2% TiO 2 , was covered on one face with a paste comprising in weight per cent, 50% graphite, 20% Na, 20% NaCI, 5% KN0 3 , 5% CaCl 2  at 300‹ C. It is preferred that the contacting medium contain sulphates, phosphates, oxides, silicates, of calcium, barium, strontium or magnesium.
Patent GB-1282150-A (GB)
Title: Agglomeration of reduced iron ore
Inventor: METRAILER WILLIAM JOSEPH
IPC: C22B1/14
Filed: 1969-12-02
Abstract: 1282150 Agglomerating reduced iron ore particles ESSO RESEARCH & ENG CO 2 Dec 1969 [11 Dec 1968] 58807/69 Heading C1A [Also in Division C7] Reduced iron ore particles are agglomerated by feeding into a fluidized bed thereof, particles of reduced iron ore of sizes ranging from 1 to 10,000 microns and averaging 50-400 microns, a substantial proportion of which are less than 325 Tayler Mesh size, introducing a heavy liquid hydrocarbon having a Bouradson carbon residue above 10% by weight, maintaining the particles at temperatures ranging from 850‹-1100‹ F. for a time sufficient to partially crack said hydrocarbon and deposit coke on the very fine particles thereby cementing them together to form particles larger than 325 mesh size. The bed may be fluidized with a non-oxidizing gas (e.g. N 2  or steam) at a superficial gas velocity of 0À3-1À5 ft./sec. or alternatively with a reducing gas. The hydrocarbon is preferably sprayed on to the top of the bed in droplets of size ranging from 1/10 size of the largest particle to be agglomerated to 10 times the size of the average particle in the bed. Residence times in the bed may be from 10-60 minutes. Preferably 0À1-1À0 part by weight hydrocarbon are used per hour per part of metal particles in the bed. The prior reduction of the ore is described (see Division C7) yielding typically reduced ore containing 90% Fe and 5% FeO. The ore may be fed to the fluidized bed in a hydrocarbon suspension formed by scrubbing the off gases from a reduction process.
Patent GB-1415326-A (GB)
Title: Method and apparatus for the production of composite plastics articles
IPC: B29C45/14
Filed: 1972-12-21
Abstract: 1415326 Injection-blow-moulding E I VALYI 21 Dec 1972 [27 Dec 1971] 59195/72 Heading B5A In making a composite plastics article, a core and preformed plastics liner are placed in a parison mould, the core and liner being spaced apart until the core is seated in the mould, the core being heated, over at least that portion intended to contact the liner during parison moulding and then plastics is injected around the core and liner to form a composite parison. In Fig. 6, a preform 5, is placed on a core 3, a further layer 6 injection moulded thereover in an injection mould 2 and the composite parison blow-moulded. Preform 5 is held by cooled neck mould parts 4a, 4b and lowered into injection mould 2, which may be heated, before lowering heated poppet 3b of core 3 into contact therewith. Neck mould parts 4a, 4b may have cooling ducts 13a, 13b and core sleeve 3c may have cooling ducts 16. Core poppet 3b may have ducts 19, 20 for heating medium. The core may be constructed as a blowing core, heat transfer between the heated poppet section 3b and the cooled sleeve section 3c being reduced by maintaining the blowing air orifice 3a open until the injection-moulding stage. Prevention of shrinkage deformation of the preform may be helped by roughening the blow core surface.