baber/WOPTO huggingface dataset:
Patent GB-1496835-A (GB)
Title: Mixture control system for an internal combustion engine
IPC: F02D41/06
Filed: 1975-11-10
Abstract: 1496835 Automatic control of I C engine fuel supply NISSAN MOTOR CO Ltd 10 Nov 1975 [8 Nov 1974 24 April 1975] 46339/75 Heading G3R [Also in Division F1] A control system for the air fuel mixture supplied to an I.C. engine includes an exhaust gas oxygen sensor which provides a signal for comparison with a reference to produce a control signal for a pulse width modulator circuit whose pulse output is applied to a valve in an air bleed conduit to control the air/fuel ratio of the mixture supplied to the engine. In the system shown in Fig. 1, the air/fuel mixture supply to the engine is controlled by operation of the air bleed valves 9, 10 and the fuel valve 11. The fuel is controlled in accordance with sensors monitoring throttle position 23, manifold pressure 24, engine temperature 25 and speed 26 and supplying function generator 22 which supplies a controlling analog signal to pulse width modulator 27. An exhaust gas sensing arrangement comprising sensor 18, comparator 19 and P.I. controller 29 supplies an analog signal to pulse width modulator 20.  Fig. 4 shows one example of a pulse width modulator 20 or 27 with the controlling signal applied through resistor R7 to affect the charging rate of capacitor C3 so that the width of pulse supplied to the valve is varied. In an alternative arrangement, Fig. 2 (not shown) the analog signal is supplied to the base of a third transistor which is connected to the connection point of the capacitor with the base of the second transistor. In a further modification, Fig. 6 (not shown) the base of the second transistor is supplied with regular pulses to switch it off and allow an output pulse to develop. The supply of these regular pulses can be speeded up to provide warm-up enrichment or stopped to inhibit fuel supply on deceleration.
Patent GB-1007497-A (GB)
Title: Method of producing electrode plates for lead accumulators
IPC: H01M4/70
Filed: 1962-12-07
Abstract: 1,007,497. Accumulator K. GEISSBAUER. Dec. 7, 1962 [Dec. 8, 1961], No. 46368/62. Heading H1B. A lead accumulator plate has zig-zag synthetic resin strips threaded on to lead spines 10 of the plate 2. Active material is pressed into the honeycombs so formed.
Patent GB-1165888-A (GB)
Title: Electrical Discharge Machining
IPC: B23H1/00
Filed: 1966-10-19
Abstract: 1,165,888. Electro-erosion. RAYCON CORP. 19 Oct., 1966 [22 Oct., 1965], No. 46763/66. Heading B3V. An electro-erosion apparatus comprises a work-holder 14 supporting a workpiece 26, a carriage 40 supporting an elongated electrode 78 extending generally towards the workpiece, means 64 for advancing and retracting the carriage towards and away from the workpiece, electrode feeding means 82, 84 for moving the electrode relatively to the carriage after retraction of the latter, and control means operative to sense a predetermined position of the electrode relative to the workpiece for stopping the feed. The workpiece 26 may be a hollow nozzle into which a series of radial holes are to be machined by the wire electrode 78. Workholder 14 is mounted to move about a horizontal axis 22 and is indexed about a generally vertically axis 24 by an indexing motor 30; after all the holes have been machined the indexing is stopped by a switch 32. Electrode wire 78 is wound on a spool 76 mounted on the carriage 40 which is movable along horizontal guide rods 44 by a double-acting cylinder 64 controlled by a solenoid-actuated valve (178), Fig. 7 (not shown), in the spark-producing circuit. Adjustable switches 54, 56 limit the movement of the carriage. After retraction of the carriage 40, the electrode wire 78 is pulled from spool 76 through a straightener 80 by feed rollers 82, 84, driven by a motor (92), Fig. 3 (not shown), and then passes through a clamp 98 and guide (120), Figs. 4, 5 (not shown). The clamp is spring- biased into clamping position and is opened by a solenoid 110. A D.C. potential is applied between the electrode and workpiece through conductors 118, 160 from a generator (152), Fig. 7 (not shown). As the electrode wire 78 is fed towards the workpiece, the gap is reduced until a control capacitor (270) discharges and acts through gate (260), switch (286) and solenoid (288) to stop the feed. The sparkproducing circuit includes a working capacitor (181) and a resistor (162) for varying the erosion current. An automatic control system is described including alternative manual control switches (246), (262) for the indexing and electrode feed. Dielectric fluid is supplied to the erosion gap through pipe 148.
Patent GB-1171152-A (GB)
Title: P.T.F.E. Coated Article and Method of making such an Article
IPC: B29B11/12
Filed: 1966-10-19
Abstract: 1,171,152. P.T.F.E. coatings. DURIRON CO. Inc. 19 Oct., 1966 [19 Oct., 1965], No. 46822/66. Heading B2K. [Also in Division F2] Articles are coated with a P.T.F.E. layer of substantially uniform thickness and density by isostatically pressing powdered P.T.F.E. against the article and subsequently sintering the coating thus formed. As shown in the figure, a valve closure member 50 is coated by surrounding it with an elastomeric membrane 55, filling the space between the membrane and the closure member with powdered P.T.F.E., sealing the membrane around the ends of the closure member, and immersing the whole in a pressurised liquid. The coating thus formed is subsequently sintered.
Patent GB-1028904-A (GB)
Title: Improvements relating to fluid control valves
IPC: F16K51/02
Filed: 1963-11-27
Abstract: 1,028,904. Valves. M. M. DUNKEL, [trading as E. LEYBOLD'S NACHFOLGER]. Nov. 27, 1963 [Nov. 28, 1962], No. 46917/63. Heading F2V. A valve disc 2 (Fig. 1, not shown) which is connected to a spindle with limited freedom of movement is arranged parallel to the seat 3 prior to engagement therewith by resilient elements, e.g. leaf springs 4; the latter may be attached to the disc 2 as shown or secured to the underside of the seat 3 and protrude upwards therethrough.
Patent GB-1006733-A (GB)
Title: Improved method and apparatus for drawing a continuous ribbon of glass on a bath of molten material
IPC: C03B18/06
Filed: 1963-11-28
Abstract: <FORM:1006733/C1/1> A continuous ribbon of glass is formed by passing molten glass on to a bath of molten metal or metal salt and, while it is still plastic, stretching sideways to increase the width.  The walls of the tank containing the molten metal &c. are formed of carbon or boron nitride and are cooled and cooling members 16 are arranged over the marginal edges of the glass ribbon to render the glass sufficiently set to be gripped by pairs of positively driven rollers 18 arranged at increasing distances from the centre line of the tank.  A screen 25 mounted above the surface of the glass serves to prevent the heat from passing to the cooling section 24 of the tank.
Patent GB-1537227-A (GB)
Title: Wheel construction
IPC: F16C35/077
Filed: 1977-11-14
Abstract: 1537227 Bearings PEMCO-KALAMAZOO 14 Nov 1977 47310/77 Heading F2A A wheel assembly comprises a wheel 14 having an axially extending hole 16 therethrough, and a bearing housing 21 located inside said hole with clearance, the centre of the housing being concentric with the outside diameter of the wheel, there being a mouldable, synthetic resin material 38 filling said clearance and securing the bearing housing within the wheel. The material may be relatively rigid (e.g. ABS), or it may be elastomeric. Similarly, the housing 21 may be of rigid or resilient material.
Patent GB-1108009-A (GB)
Title: Method for the selection of feedstocks for chemical processing
Inventor: PRINCE LEON JAMES STEPHEN
IPC: G01J3/28
Filed: 1965-11-09
Abstract: A chemical feedstock is selected for processing by a method comprising (1) measuring an arbitrary selection of composition parameters for a number of feedstocks, for example by spectrophotometric or chromatographic means, and also recording product parameters representing an assessment of the acceptability of each product produced from the feedstocks, (ii) "computing a discriminator" by setting up a series of equations relating the composition parameters and the product parameters and finding "best fit" values for the coefficients, (iii) measuring on a potential feedstock the composition parameters used in step (ii), and calculating the corresponding numerical value of the discriminator (iv) selecting the feedstock for use when this numerical value predicts a satisfactory product.  The example refers to the selection of paraffinic feedstocks for the preparation of chlorinated and sulphochlorinated products.
Patent GB-1204937-A (GB)
Title: Thermoplastic polyester moulding materials
IPC: C08G63/16
Filed: 1968-10-07
Abstract: 1,204,937. Modified moulding polyester. FARBWERKE HOECHST A.G. 7 Oct., 1968 [7 Oct., 1967], No. 47435/68. Heading C3R. A thermoplastic polyester moulding material is made by reacting a linear saturated polyester of an aromatic dicarboxylic acid and an aliphatic or cycloaliphatic diol, with 2-20% by weight, based on the total mixture, of a polyalkylene diol preferably obtained by hydrogenation of a polybutadiene diol. The resulting block copolymer may be subjected to further condensation in the melt or solid phase. The preferred aromatic polyester is polyethylene terephthalate but dimethylol cyclohexane terephthalate can be used, and the polyethyleneterephthalate may also contain units of naphthalene-2,6-dicarboxylic or adipic acids and neopentyl glycol or butane-1,4-diol. Moulding compositions are made by mixing the copolyester with nucleating agents such as tale, aluminium and clay, organic pigments other polyesters and the compositions may be coated with paraffin wax or other wax.
Patent GB-1489021-A (GB)
Title: Platen positioning means for imprinters
IPC: B41L19/00
Filed: 1975-11-18
Abstract: 1489021 Printing apparatus CONTROL DATA CORP 18 Nov 1975 [9 April 1975] 47455/75 Heading B6C A travelling cylinder printing machine 10 with base 11 comprises a carriage 22 with a cylinder-supporting shaft 26 which is axially moved at the end of each stroke to raise or lower the cylinder 31. Angled cams (e.g. 20) mounted on the base 11 cause the axial movement of shaft 26, which has cut-away portions 34, 36 to accommodate the upper position of the cylinder 31 when they engage adjusting screws 38, 39 and portions 35, 37 to accommodate the lower position. Leaf springs 40, 41 urge shaft 26 against the screws 38, 39.
Patent GB-1090069-A (GB)
Title: Improvements in die rules
IPC: B21D37/20
Filed: 1965-11-11
Abstract: 1,090,069. Jointing; shear blades. M. D. MARTIN. Nov. 11, 1965 [July 28, 1965], No. 47882/65. Headings B3V and B3W. [Also in Division B4] A die rule 2 is mounted in a slot 7 of an arcuate wooden block 6 by positioning the die rule between a cut out plug and the wall of the slot, and pouring a hardening epoxy resin over ears 11 bent from the die rule, the resin securing the die rule in position and forming fillets 14, Fig. 4, to stiffen the die rule. The block 6 is attached to an arcuate support on the roller of a rotary cutter. The ears 11 are bent alternately inwardly and outwardly and are interspersed with depending legs 12, cutting serrations 4 being provided on the upper edge of the rule.
Patent GB-1116962-A (GB)
Title: Information recording medium and composition useful for the manufacture thereof
IPC: G03G5/06
Filed: 1965-11-11
Abstract: 1,116,962. Photo-conductive recording medium. GENERAL ELECTRIC CO. 11 Nov., 1965 [11 Dec., 1964], No. 47967/65. Heading H1K. A photo-conductive recording medium is made by deposition of a molecular complex of 2,3-dichloro-5,6-dicyano-1,4-benzonquinone and perylene or pyrene together with polystyrene from a methyl ethyl ketone solution. A conductive substrate having a dielectric support may be employed.
Patent GB-1430202-A (GB)
Title: Apparatus for manufacturing alkali metal mono-, bi-and tri phosphates foam apparatus
IPC: C01B25/39
Filed: 1973-02-08
Abstract: 1430202 Chemical furnaces BENCKISER-KNAPSACK GmbH 8 Feb 1973 [8 Feb 1972] 48189/74 Divided out of 1430201 Heading F4B Apparatus for the production of alkali metal phosphates by the process disclosed in Specification 1,430,201 comprises a rotary furnace 16 supplied from a twin piston pump 11 with phosphoric acid and an aqueous solution of hydroxide via a mixing tube 14 and one or more nozzles 15, means for discharging the phosphate produced and a conveyer system 17, 18, 19 whereby part of the phosphate can be recycled. The furnace has lifters 20 and the nozzles 15 have a diameter of 15-40 mm. The nozzles spray on to a continuously falling curtain of recycled material in order to avoid caking of material on the furnace walls and agglomeration of said material.
Patent GB-1001350-A (GB)
Title: Urea bis(1-methylquinolinium) salts
Inventor: JONES WILLIAM GLYNNE MOSS
IPC: C07D215/38
Filed: 1962-12-20
Abstract: The invention comprises salts or complexes of the cation <FORM:1001350/C2/1> with one of the anions <FORM:1001350/C2/2> and their preparation by reacting salts containing these ions in an aqueous medium; suitable salts are the cation methosulphate and the anion alkali metal or ammonium salts.  The invention also comprises pharmaceutical compositions containing a compound as above and a diluent or carrier; these are suitable for the prophylactic treatment of babesiasis in domestic animals such as cattle, and may be administered parenterally.
Patent GB-1509030-A (GB)
Title: Method and apparatus for forming refractory tubing
IPC: C30B13/00
Filed: 1975-11-24
Abstract: 1509030 Forming crystalline tubing ARTHUR D LITTLE INC 24 Nov 1975 48264/75 Addition to 1372087 Heading B1S Refractory tubing, e.g. of single crystal structure, is prepared by forming a molten zone in a preformed, e.g. sintered, refractory tubing blank using laser energy comprising forming a number of laser beams of halfannular configuration equally spaced around the tubing and focusing each of the laser beams onto the tubing to form the molten zone, the focusing being performed so as to adjust the energy distribution of each of the beams to equalise the absorption of laser energy around the entire surface of the tubing within the molten zone; and moving the molten zone through the tubing in the usual manner using, if desired, a single crystal seed to initiate single crystal growth through the tubing. The method is particularly suitable for making single crystal tubes of alumina.
Patent GB-1407178-A (GB)
Title: Hydraulic servo steering systems
IPC: B62D5/09
Filed: 1973-10-18
Abstract: 1407178 Power steering systems ZAVODY TAZKEHO STROJARSTVA GENERALNE RIADITELSTVO MARTIN 18 Oct 1973 [19 Oct 1972] 48562/73 Heading B7H A power steering control valve includes a body slidably housing a valve member which is connected to the steering mechanism, reaction chambers within the body or member for transmitting reactive feed to the mechanism and adjustable relief valve connected to the chambers for limiting the reaction forces. In a first embodiment, Fig. 1, the body 1 houses a spool 2 which is connected to a steering spindle 5 and oil is passed from a pump 7 to a servocylinder 11 via annular grooves in the spool. Reaction chambers 16, 16<SP>1</SP> are fitted with pistons 17, 17<SP>1</SP> which abut the spool ends and with adjustable pressure relief valves 19, 19<SP>1</SP>. In another embodiment, Fig. 2, the reaction chambers are both connected to the same relief valve 34 and no reaction pistons are provided. The chambers 16, 16<SP>1</SP> connect with the annular grooves 3, 3<SP>1</SP> via throttle passages 14, 14<SP>1</SP> so that oil passes from the pressurized groove into one of the chambers where it acts on a shoulder of the spool to give " feel ". Oil from the pressurized chamber is passed by line 33 or 33<SP>1</SP> to valves inlet 35 or 351 which is controlled by a ball 36 and thence to an exhaust line 37, 44, 45 in which an adjustable ball relief valve is situated. A passage connected between the inlet 35 or 35<SP>1</SP> and exhaust line 45 is provided with a twoway valve which when opened prevents any reactive force arising. In a further arrangement (Fig. 3, not shown) the inlets 35, 351 are connected by a line including a valve which may also act, when opened, to cut out the reactive feel. In a still further embodiment, Fig. 4, the valve spool is connected to the steering wheel 55 via a metering pump 54 which supplies oil to control chamber 58 or 58<SP>1</SP>. The reaction chambers 16, 16<SP>1</SP> are formed in the spool 2 and are closed by members 17, 17<SP>1</SP> fixed to the valve body; fluid is supplied to chamber 16 or 16<SP>1</SP> via the radial bores 14 or 14<SP>1</SP> which connect with the grooves 3, 3<SP>1</SP>. The relief valves 19, 19<SP>1</SP> are mounted in the bores 13, 13<SP>1</SP> connecting the radial grooves to the chambers.
Patent GB-1522308-A (GB)
Title: Hydration of lime
IPC: C04B2/08
Filed: 1974-11-11
Abstract: 1522308 Hydration of lime ASSOCIATED PORTLAND CEMENT MFRS Ltd 4 Nov 1975 [11 Nov 1974] 48692/74 Heading C1A Dry slaked hydrated lime is produced by adding to lime produced by firing calcerous matter, which is passing directly through a rotary cooler from a lime-producing kiln, the requisite amount of water to yield hydrated lime at the cooler outlet. This is conveniently performed by inserting a water feed pipe into the outlet end of the cooler so that it extends into the cooler for a suitable distance, such as “ to ¢ the length of the cooler. The residence time of the solids from the water application point to the cooler outlet is preferably 7-15 minutes, and the temperature generally 100-500‹C. The heat developed in the hydration reaction may be carried by counterflow air to the lime-kiln to support combustion.
Patent GB-1283789-A (GB)
Title: Measurement of flow speed of electrically-conductive fluid
IPC: G21C17/025
Filed: 1970-10-15
Abstract: 1283789 Electromagnetic flowmeters SIEMENS A G 15 Oct 1970 [15 Oct 1969] 49150/70 Heading G1N [Also in Division G6] In an electromagnetic flowmeter, e.g. for use in a nuclear reactor, the magnetic field is provided by permanent magnet means 53 e.g. of tubular form or consisting of two halves or two plates, embedded in a member 52 adapted to be removably fitted in a duct 31 provided between two plates 3 of a grid supporting the fuel elements 5. Bores 54 are provided in the member 52, so that electrodes 33 may contact the fluid. Pins 32 may be used for positioning the member 52.
Patent GB-1107457-A (GB)
Title: Incandescent lamps
Inventor: MEINERT HASSO
IPC: H01K1/54
Filed: 1965-11-22
Abstract: 1,107,457. Electric incandescent lamps. TECHNISCHE GASE-WERKE BERLIN. 22 Nov., 1965, No. 49531/65. Heading H1F. One or more Xenon fluorides in crystalline or gaseous form are added to the filling of a lamp having a tungsten filament, to act as a regenerative getter. The fluorides may be prepared as described in Specification 1,056,657.
Patent GB-1533562-A (GB)
Title: Mills
IPC: B02C25/00
Filed: 1975-12-03
Abstract: 1533562 Agitator mills MOREHOUSE INDUSTRIES INC 3 Dec 1975 [4 Dec 1974] 49582/75 Heading B2A An agitator mill arrangement comprises a central support column 10 Fig. 1 supporting spaced processing vessels 16, 17, 18 around it, each vessel containing a rotor 22 with a drive shaft extending outwardly from the vessel, and means on the column for independently driving each of the rotor drive shafts 24, Fig. 2 viz separate hydraulic motors 28 for each shaft. Each vessel has a separate pump 32..34 and hydraulic motor. As described three mills are arranged on a column with a series connection of inlet and outlet pipes. The vessels have cooling jackets 19 Fig. 2.
Patent GB-1192149-A (GB)
Title: Improvements in Flexible Mandrels
IPC: B29C48/34
Filed: 1968-10-22
Abstract: 1,192,149. Coating cores by extrusion. UNIROYAL Inc. 22 Oct., 1968 [6 Nov., 1967], No. 49956/68. Heading B5A. [Also in Division F2] A flexible mandrel, for use in the production of hose by a method involving the extrusion of a layer of rubber or plastic material over the mandrel followed by either further extrusion or coating of a second layer over the first layer and reinforcement, e.g. of yarn or wire, thereon and vulcanization of the hose at temperatures ranging between 298 and 350 F., is composed of a core of resilient material surrounded by a flexible sleeve of less resilient material, the core 2 being stretched during manufacture of the mandrel by extrusion of the sleeve 3 around it and being maintained stretched during setting of the sleeve in a cooling tank 31, whereby upon release of the stretching force the core 2 is maintained in a state of radial compression. The apparatus shown consists of a supply spool 11 from which the core 2, of rubber or a similar elastomer, is fed by gripping the mandrel, after extrusion and setting of the sleeve 3, between a pair of conveyer belts 42, 43 driven from a motor 46, a take-up spool 45 also being driven from the motor 46 via a slip clutch in known manner. A brake shoe 13 acted, on by an adjustable spring 14 applies a braking force to the spool 11 to cause the core 2 to be stretched as it passes from the spool 11 to the conveyer belts 42, 43 via an extruder, which applies the layer 3, and the cooling tank 31. The extruder comprises a crosshead 20 the housing 21 of which has a large-diameter bore 23 communicating with a feed tube 25 which contains a feed screw 26 for feeding molten plastic having a high melting point (when set) and a high coefficient of expansion, e.g. a resin of polyamide, acetal, polyphenylene oxide, polysulphone or polypropylene, to an extruder orifice 24a. In passing to this orifice the plastic passes around a tubular inner member 22 through which the core 2 passes. After extrusion the mandrel passes through an opening 34<SP>1</SP> into the cooling tank and is supported by rollers 33 within the tank, cooling liquid being allowed to ooze out from the tank into a drain 35 and being maintained at a level slightly above the top of the mandrel by a filler pipe 36.
Patent GB-1512597-A (GB)
Title: Socket part for a plug and socket connection
IPC: H01R13/187
Filed: 1976-12-01
Abstract: 1512597 Electrical sockets TELEFONAKTIEBOLAGET L M ERICSSON 1 Dec 1976 [5 Dec 1975] 50195/76 Heading H2E A socket has an opening and a helical spring 6 having its longitudinal axis substantially perpendicular to the longitudinal axis of the opening and being partly in a wall of the opening and partly in the opening so that it may be laterally deflected by a contact surface of a plug when inserted in the opening, the spring 6 being held under compression. As described, more than one spring may be employed on opposite sides of the opening which may comprise portions of different diameters, e.g. as shown in figure 3, for receiving a tripolar telephone plug with contacts in the form of three concentric cylindrical sleeves. The springs 6, 7, 8 each abut a respective conductor 11, 12, 13 to which wires may be connected, and have turns in the centre which are smaller in diameter than those at the ends.
Patent GB-1421649-A (GB)
Title: Ventilation units
IPC: F04D29/52
Filed: 1973-10-30
Abstract: 1421649 Screw fans TOLERIES DE GRENOBLE 30 Oct 1973 [8 Nov 1972] 50485/73 Heading F1C [Also in Divisions F3 and 4] A ventilating air circulating unit comprises a screw fan impeller 5 and motor 4 mounted inside a cylinder 1 and end members 10, 7 and 11 for connecting the cylinder 1 with air-flow ducts, wherein the cylinder 1 may be inverted as shown to reverse the direction of air-flow therethrough. A removable filter 12 may be provided within the cylinder 1. The unit may be used in air extraction Fig. 1 (not shown) or air delivery Fig. 2 (not shown) systems stated to be known. An inlet nozzle 6 for the impeller 5 and support arms 3 for the motor 4 are fixed to a ring 2 which is welded to the cylinder 1.