baber/WOPTO huggingface dataset:
Patent GB-1103520-A (GB)
Title: Improvements in or relating to electric circuits comprising oscillators
Inventor: REYNOLDS JOHN SPACKMAN
IPC: H04L7/033
Filed: 1965-12-21
Abstract: 1,103,520. Automatic phase control systems. GENERAL ELECTRIC CO. Ltd. 16 Dec., 1966 [21 Dec., 1965], No. 54188/65. Heading H3A. In a system for synchronizing a local oscillator 6 with an incoming signal 4, a pulse generator 1 produces non-coincident pulses on lines 2, 3 for each transition, in at least one direction, of the input signal through a predetermined value, and the resulting pulse signals are fed, together with clock pulses derived from oscillator 6, to a bi-stable circuit 5, such that coincidence of a clock pulse on line 9 and a pulse on line 2 sets the bi-stable circuit 5 in one state, and coincidence of a clock pulse and a pulse on line 3 sets it into the other state. The resulting output from the bi-stable circuit is then utilized to control the frequency of the oscillator 6. The basic circuit, Fig. 1 (not shown), may be improved by the inclusion of a second bi-stable circuit 15 which connects the output of the bi-stable circuit 5 to the oscillator 6 only during the time that a clock pulse occurs and no pulse is present on either line 2 or 3. The action of bi-stable circuits 5, 15 tends to reduce the frequency difference until the output from integrator 11 begins to follow the mean level variations of the output of a third bi-stable circuit 16. The control signal for oscillator 6 thus follows this variation until the two signals are brought into synchronism. The pulse generator may comprise a shift register with the outputs from its stages connected to logic circuits, Fig. 3 (not shown).
Patent GB-1491737-A (GB)
Title: Process for reducing the content of terephthalaldehyde acid methyl ester in dimethyl terephthalate
IPC: C07C69/82
Filed: 1974-12-18
Abstract: 1491737 Purification of dimethyl terephthalate CHEMISCHE WERKE HULS AG 18 Dec 1974 [20 Dec 1973] 54588/74 Addition to 1486320 Heading C2C The invention comprises a process for the purification of dimethyl terephthalate which comprises contacting the crude ester, which contains terephthalaldehyde acid methyl ester as impurity, with a supported palladium catalyst in the gas phase at a temperature of from 150‹ C. to 350‹ C. and at a pressure of dimethyl terephthalate of from 10 to 1000 mbars to effect conversion of at least the major part of the impurity to methyl benzoate. The reaction may be carried out in the presence of a carrier gas which is preferably water vapour.
Patent GB-1344308-A (GB)
Title: Method and system for condensing leaking steam in a nuclear reactor installation
IPC: G21C9/012
Filed: 1971-11-24
Abstract: 1344308 Reactors SIEMENS AG 24 Nov 1971 [24 Nov 1970] 54686/71 Heading G6C In a steam generating nuclear reactor power plant, leakage steam is condensed by a waterfree medium such as carbon dioxide and/or silver iodide. Leakage steam, in the event of a rupture of the coolant lines 6, connecting the steam generators 7 and the reactor 4, is sprayed with carbon dioxide and silver iodide from the conduits 12, 13 respectively in the annular chamber, 10. The condensate collects in the container 15 and is conveyed to the reactor pit 5. The air cushion formed in front of the escaping steam is released from the chamber, 10, through the valve 16. Spray conduits, 17, 18 may also be placed in the plant chamber, 9, when leaking steam is condensed directly at the leakage point and no air cushion is moved through the plant.
Patent GB-1120910-A (GB)
Title: Shelving assembly
IPC: A47B96/14
Filed: 1966-12-08
Abstract: 1,120,910. Shelving. S. K. GERDMAN. 8 Dec., 1966 [15 Dec., 1965], No. 54940/66. Heading A4B. A shelf support comprises in combination a bracket with a horizontal shelf support arm 6 terminating in an upwardly directed arcuate portion 7, and a bracket supporting post of stepped cross-section provided in its central piece 1 with vertically elongated apertures 4 through which the arcuate portion 7 is engaged. A notch 8 at the bracket elbow bears on the bottom edge of the aperture 4 and the free end of the arcuate portion 7 bears on the rear face of the central portion 1 between superposed apertures 4. Back panels (13, 14) have their side edges engaged against side faces 15 of the post are secured by screws (16) passed through apertures 5 in the steps 2. Two posts may be secured back to back by bolts (17) engaged through aligned holes 5 in flanges 3 of the posts. A sleeve 11 may be fitted over the horizontal bracket arm 6. Holes 9 in the arm 6 receive fastening elements for the shelves. Shelves may be supported on hooks 12 fitted on the sleeve 11.
Patent GB-1410729-A (GB)
Title: Compactor for soils ground or the like
IPC: E02D3/026
Filed: 1973-11-28
Abstract: 1410729 Impacting rollers SOUTH AFRICAN INVENTIONS DEVELOPMENT CORP 28 Nov 1973 [4 Dec 1972 30 March 1973] 55110/73 Heading A1B [Also in Division F2] A soil compactor comprises a non-circular roller 12 pivotally attached by links 24 to a frame 26 which is supported by wheels 30 and can be towed by a vehicle via the draw-bar 26.2. The roller 12 can be raised by two piston- and-cylinder assemblies 32 to an inoperative position when it is clear of the ground and is supported by the frame 26. For transport it can be locked in this position. The hydraulic system, part of which may be mounted on the towing vehicle, includes an accumulator which allows rapid operation of the assemblies 32. In other embodiments the assemblies 32 are mounted horizontally within the two arms 26.4 of the frame 26 and act through cranked levers to raise the roller. Resilient connections may be provided between the links 24 and the frame 26 in addition to the pivots 28.
Patent GB-1397573-A (GB)
Title: Cyclometer registers
IPC: G06M1/16
Filed: 1972-11-29
Abstract: 1397573 Counters GENERAL ELECTRIC CO Ltd 27 Nov 1973 [29 Nov 1972] 55116/72 Heading G4D The invention relates to a counter of the kind having an extra, transfer wheel 5 which is driven rapidly by a falling weight 8 to advance the next higher order digit wheel. The weight 8 falls through a full half circle and is geared to the transfer wheel 5. The lowest order number wheel 1 of the counter carries a pin 9, which drives the weight from bottom to top dead centre, and a rotatable stepped pinion which meshes with teeth 14 on a boss 6, which carries the weight 8, and teeth 15 on the transfer wheel 5, to provide an overall three to one ratio which allows a smaller weight to be used. The weight 8 is counterbalanced by the pinion 11 and a small weight 20 during the " winding up"  movement.
Patent GB-1473408-A (GB)
Title: Apparatus for feeding powdery material
IPC: B65G65/44
Filed: 1974-12-20
Abstract: 1473408 Hoppers discharges HOSOKAWA FUNTAI KOGAKU KENKYUSHO KK 20 Dec 1974 55244/74 Heading B8S An apparatus for feeding powdered material at a controlled rate comprises a feed tube 5 to deposit the material on to a series of vibratory receiving members 24, 34, 35 of which all but the lowermost member have a central aperture 37, 38 the members are arranged concentric with the feed tube and are connected rigidly together by bolts 36. The lowermost member 24 is mounted on a vibrator which may be electrical or mechanical. In one form the vibrator comprises a coil 29 mounted on a magnetic core 28 held spaced from a magnetic bar 45 on the underface of the lowermost member 24. The core 28 is mounted on a platform 26 and a pair of plate springs 25, (25<SP>1</SP>), Fig. 2 (not shown), support the lowermost member. The vibrations may be up and down, side to side, angular or any combination thereof. The position of the feed tube 5 is adjustable by threaded bolts 21 with pinions 20 rotated by a gear ring 19 with handles 23. The apparatus may have only one apertured receiving member in addition to the lowermost member 24. The feed tube and the receiving members may be triangular, square or polygonal cross-section. The feed tube receives the powdered material from a hopper 4 although a bag filter or cyclone collector may be used.
Patent GB-1154210-A (GB)
Title: Improvements in or relating to Article Lawn Elements
IPC: E01C13/08
Filed: 1966-12-19
Abstract: 1,154,210. Artificial grass. MANUFACTURE FRANCAISE D'OBJETS DE FIBRE DE VERRE ET DE PLASTIQUE "MANOVER". 19 Dec., 1966 [28 July, 1966], No. 56610/66. Addition to 939,053. Heading A4X. An artificial lawn element 2 has integral lugs 9 coplanar with its base 1 on two sides and recesses on its other two sides. Two elements 2 are joined together by the lugs 9 being received in the recesses and nipples 4 on the lugs engaging in apertures in the recesses. The recesses may be formed by de-forming the base plate (Figs. 2, 4 or without deforming the base plate (Fig. 3).
Patent GB-1348400-A (GB)
Title: Process for establishing ignition timing of a reciprocating  internal combustion engine
IPC: F02P17/04
Filed: 1971-12-08
Abstract: 1348400 Measuring ignition timing of I C engines FORD MOTOR CO Ltd 8 Dec 1971 [15 March 1971] 56985/71 Heading G1N The ignition timing of an I. C. engine is measured by comparing the ignition instances, sensed by a pick-up 68 coupled to a lead 34 to the spark plug 36 of the number one cylinder, with the instances when the piston in this cylinder is at top dead centre, as indicated by pulses in a coil 64 fixed to the engine block 10, induced by the passage of a slot 62 in a ferromagnetic vibration damper 60 attached to the engine crank-shaft 12. The timing difference is determined and shown at 66, and when it is adjusted to within a desired tolerance by rotation of the distributor housing 24, the latter is fixed by a power tool 70. The coil 64 is located on a timing plate 44 mounted on dowels 40, 42 on the engine block. Either pulse train may be integrated to determine engine RPM.
Patent GB-1200499-A (GB)
Title: A method of making shaped thermoset composites
IPC: B29C43/30
Filed: 1967-12-19
Abstract: 1,200,499. Laminates ; sheet forming. ALLIED CHEMICAL CORP. 19 Dec., 1967 [23 Dec., 1966], No. 57657/67. Headings B5A and B5N. A method of making a shaped article comprises cold-forming a composite comprising a central core layer 15 of a substantially uncured thermo-settable resin composition and, on each face thereof, at least one layer 16, 17 comprising a synthetic resinous thermoplastic composition, to give a shaped uncured composite, and curing the core layer of the shaped uncured composite while the composite is free of any external constraint. The core may comprise a polyester, a chlorinated polyester, a phenolic resin, a polyurethane, a melamine-aldehyde resin, an epoxy resin, a polyurea or a silicone, optionally admixed with a thermoplastic resin, e.g. polyvinyl chloride, polyethylene or polystyrene, and may contain fillers. Specified synthetic resinous thermoplastic materials (which are defined as including modified cellulose) are olefinic polymers and copolymers, vinyl resins, polyesters, polycarbonates, polyamides, cellulose esters and cellulose ethers which may be reinforced, e.g. with metal screens or foils. The layers of the composite may be adhesively bonded. Curing may be effected by elapsed time of activated compositions, by the application of heat and/or radiation, by the incorporation of catalysts and/or accelerators, by exposure to ultra-violet light or by ultrasonic techniques. In a preferred embodiment, a layer of short fibres, e.g. of cotton or rayon, is interposed between the core and each outer layer. With reference to Fig. 6, a glass fibre web from roll 40 is impregnated with polyester resin, bonded between two layers 48 of polyvinyl chloride, and the resultant composite 49 shaped into articles 54 by ram 63 and die blank 60, the shaped articles being transferred on to conveyer 55 and passed through oven 56 to cure the polyester resin.
Patent GB-1263597-A (GB)
Title: A surge arrestor
IPC: H01T1/16
Filed: 1969-11-26
Abstract: 1,263,597. Protective devices. SIEMENS A.G. 26 Nov., 1969 [26 Nov., 1968], No. 57958/69. Heading H2H. [Also in Division H1] A surge arrester comprises at least one series resistor consisting of a moulded body which is so arranged that when subject to an electrical load the direction of the voltage drop along the resistor is transverse to the direction of the pressure applied during the production of the resistor. A surge arrester comprises a ribbed insulating housing 1 in which are placed resistors 12 and a plurality of spark gaps 10, the spark gaps being surrounded by a tubular resistor 11 and the whole assembly of resistors 12, spark gaps 10 together with metal distance pieces being centred by an insulating tube 16. The ends of the housing 1 are closed by metal caps 2, 5 cemented to the housing the lower cap 5 carrying a dish 7 which is ejected when a diaphragm 8 is destroyed by the high pressure set up in the arrester thereby disconnecting the earth lead 9. During the construction of the resistors 12 pressure is applied thereto in the direction of an arrow 18 and the resistors are connected so that the voltage drop occurs in the direction of the arrow 19 i.e. at right angles to the arrow 18. The cross-section of the resistors may be square, circular, hexagonal or a combination thereof.
Patent GB-1153210-A (GB)
Title: Improvements in or relating to Hydraulic Braking Systems
IPC: B60T8/18
Filed: 1966-12-30
Abstract: 1,153,210. Hydraulic brakes. SOC. ANON. ANDRE CITROEN. 30 Dec., 1966 [3 Jan., 1966], No. 58446/66. Heading F2F. In an hydraulic braking system of a road vehicle, of the kind comprising separate front and rear wheel braking circuits and wherein a pressure-limiting valve operable in dependence upon load is included in the rear wheel braking circuit, the load-modified pressure in the rear wheel braking circuit is fed to additional brake cylinders on the front wheels, and a safety device is provided which, in the event of failure of either circuit, automatically isolates the pressure-limiting valve and, in the case of front wheel brake circuit failure, re-routes the fluid supply so that full pressure may then be obtained in the rear wheel brake circuit. As shown, a pump 4 supplies fluid from a reservoir 2 to accumulators 7, 8 which feed the front and rear wheel braking circuits 13, 15 through lines 20 and 18, 19, respectively, a safety device 21, and a dual driver's valve 11 comprising tandem spool valves 11a, 11b. The front wheel circuit 13 supplies front wheel cylinders 14 at a pressure determined solely by valve 11, while rear wheel circuit 15 supplies, by way of a load-sensitive valve 17, both rear wheel brake cylinders 16 and an additional brake cylinder 16a on each front wheel. A line 36 from the rear wheel circuit feeds rear wheel brake pressure to a control chamber of safety device. 21, causing a piston 29 to normally remain in an upper position, as shown, while the same pressure acts also on one end of a shuttle valve arrangement which consists of a valve spool 26 and a plunger 28 slidable within the piston 29. The opposite end of the shuttle arrangement, i.e. the upper end of the spool 26, is acted on by front wheel brake pressure via line 37 so that, under the influence of springs 27, 32 the spool 26 normally takes up the balanced position shown. Should the circuit 13 fail, the spool 26 will be raised to a position in which the line 19 from the loadsensitive valve 17 is cut off by the lower of the three lands on the spool and the space between the lower and middle lands connects line 20 to the rear wheel brake circuit, the middle land simultaneously cutting off the outlet to the defective front wheel brake circuit. Should the latter fail, spool 26 will descend to a lower position, depressing the plunger 28 and piston 29, so that the middle land will cut off the outlet to the rear wheel brake circuit while still maintaining the connection to the front wheel brake circuit.
Patent GB-1197095-A (GB)
Title: Improvements in or relating to Sliding Clasp Fasteners
Inventor: SWAINSON ERIC
IPC: A44B19/34
Filed: 1967-12-27
Abstract: 1,197,095. Sliding clasp fasteners. LIGHTNING FASTENERS Ltd. 26 Nov., 1968 [27 Dec., 1967], No. 58668/67. Heading E2S. The stringers 1, 2 of a sliding clasp fastener each comprises a garment attachment portion 3 and a coupling elements attachment portion 4, each portion 4 having coupling elements 15 movable during their engagement and disengagement in a plane X-X characterised by its location between the planes of garment attachment portions 3, 3. In a modification, fig. 3, not shown, the coupling elements attachment portion (34) is at right angles to the garment attachment portion (33).
Patent GB-1304878-A (GB)
IPC: E21D9/00
Filed: 1970-12-14
Abstract: 1304878 Stress control in subterranean media S SERATA 14 Dec 1970 [22 Dec 1969] 59374/70 Heading E1F An underground chamber is excavated, to control its long term safety, between two relief chambers to define pillars of a size which yield without failure immediately upon their formation. Relief openings 14, 16, Fig. 4, are each surrounded by a stress envelope 18, 19, in which the stress exceeds the stress in the excavated ground, each envelope being expanded by the allowed progressive cavein of the openings. When the required protected chamber 26 is excavated, Fig. 5, pillars 27 yield and cause the formation of stress envelope 28 which, with tubular stress relieved zone 29 protects chamber 26 for a period determined by, e.g. the dimensions of the chambers. The relief openings and chamber may be subdivided. Further openings and chambers may be added to expand envelope 28.
Patent GB-1362600-A (GB)
Title: Reclamation of moulded sand
IPC: B02C19/00
Filed: 1972-12-22
Abstract: 1362600 Scraper conveyers CARBORUNDUM CO 22 Dec 1972 [3 Jan 1972] 59497/72 Heading B8A [Also in Division B2] Apparatus for granulating lumps of moulded sand comprises a trough 19, Fig. 3, an endless conveyer 13, Fig. 1, having a running surface formed by slats 15 passing through the trough 19 and spaced from the bottom thereof, means, viz. a throwing wheel or wheels 25 for projecting abrasive particles in a path toward the running surface for granulating lumps of moulded sand, the running surface being perforated at 29 to permit granulated sand and abrasive particles to pass through to the bottom of the trough, and means comprising ribs 61 of the slats 15 to remove the granulated sand and the abrasive particles from the bottom of the trough. The sand and abrasive particles are discharged into a hopper 33 and thence to a conditioner 39, Fig. 2, which projects the mixture against an impact plate. After scouring the mixture is fed via an elevator 41 to a separator 43 (see Division B2). The slats 15 are arranged between chains 17 passing around sprockets 55 driven by a motor 59. Some of the slats 15 include an upper rib 63 which holds the lumps against the force of the blast. The slats also have side walls 65 to contain projected and ricocheted particles. A scraper 87 each side of a track 81 on which the chains 17 ride clean the channels 75 which house the chains.
Patent GB-1305169-A (GB)
IPC: G21J5/00
Filed: 1971-12-22
Abstract: 1305169 Nuclear explosion detection  F FRUNGEL 22 Dec 1971 [30 Dec 1970] 59562/71 Heading G1A In a detector for a nuclear explosion, both the electro-magnetic pulse and the light pulse are detected separately and the relative time displacement indicates that the source of the radiation is nuclear. The e-m pulse is received on an aerial and the light on a photo-diode, the outputs from which are applied to a coincidence stage which produces an output only when the delay between the e-m and light pulses exceeds a predetermined value. Thus lightning flashes and flashes from non-nuclear explosions in which the electro-magnetic pulse and the light pulse are coincident or nearly so, will not operate the detector.
Patent GB-1311319-A (GB)
Title: Dispenser cathodes
IPC: H01J1/28
Filed: 1970-12-16
Abstract: 1311319 Dispenser cathodes SIEMENS AG 16 Dec 1970 [17 Dec 1969] 59666/70 Heading H1D A dispenser cathode comprises a substantially point source emissive area in the form of a wick 1 not more than 200 Á in diameter and consisting of a plurality of thin tungsten wires passing through a central bore of a cylindrical sleeve 2 which is sealed in a mounting component 3 which closes a chamber 4 containing a charge 5 of an emission promoting substance, such as barium. A porous tungsten disc 6 or a wad of tungsten wire may be positioned between the wick 1 and the charge 5. A beam-shaping member 9, for example, of carbon, may surround the sleeve 2. An inverted cup 7 contains a heater 8 embedded in cement 10. A plurality of dispenser cathodes may be mounted on a ceramic plate (11), Fig. 2 (not shown), to form a matrix, in which case heating wires may be laid between the cathodes and embedded in cement. The tungsten wires are preferably at least 6 microns in diameter, and may be coated with molybdenum suspension and sintered to form a wick having a diameter between 100 and 200 microns.
Patent GB-1287010-A (GB)
Title: Upgrading the tantalum and columbium contents of tin slags
IPC: C01B31/30
Filed: 1969-12-05
Abstract: 1287010 Tantalum and columbium in tin slags KAWECKI BERYLCO INDUSTRIES Inc 5 Dec 1969 [5 Dec 1968] 59668/69 Heading C1A The tantalum and niobium contents of tin slags are upgraded by smelting the slag with carbon to reduce at least the iron, tantalum and niobium contents and forming the Ta and Nb carbides. After pouring off the supernatant slag, the product is comminuted to at least 50% minus 350 mesh (Tyler) and a maximum of 10% plus 100 mesh, and mixed with a mixed acid of HCl in at least the stoichiometric quantity required to form chlorides of the Fe, Ca, Al, Ti and W, and HF in stoichiometric quantity required to form SiF 4  from the silicon content, and in a concentration of 2 to 5À5% weight of mixed acid. The carbide product is then heated in the mixed acid for a time sufficient to solubilize the iron, calcium, silicon, Al, Ti and W contents of the carburized slag, i.e. about 100 C. for 3-4 hours, and the solid residue is separated out and calcined in air at 600 to 900 C.
Patent GB-1319797-A (GB)
Title: Stepping motor control system
IPC: G05B19/40
Filed: 1970-12-17
Abstract: 1319797 Stepping motor control INTERNATIONAL BUSINESS MACHINES CORP 17 Dec 1970 [29 Dec 1969] 59902/70 Heading H2J  A stepping motor is decelerated by supplying to its windings a number of stepping pulses in rapid succession after which the resultant field lags behind the rotor position to produce a braking torque. Normal operation. A positive potential on the line RUN causes, via inverter 5 and run trigger 7, operation of the single shot 9, which, via OR circuit 11 causes a sequence of stepping pulses to be supplied to the stepping motor SM via counter BDC containing cross-connected triggers (TRA, TRB not shown) providing a sequence of four output pulses. Continued motor operation is produced by means of feedback pulses from encoder FBC coupled to the rotor shaft fed via AND circuit 15, and OR circuit 11 to the counter BDC. A signal on line DCL determines the direction of rotation. Deceleration. Upon drop of the signal level on the line RUN, the run trigger reverts to its initial condition, causing deceleration signal generator 17, comprising a ring circuit, to emit 3 pulses in rapid sequence which via OR circuit 11 are transmitted to the motor SM, so that the resultant field moves ahead of the rotor, until the field actually causes a braking torque on the rotor, having approached the latter from behind. The greater separation of pulses from encoder FBC consequent upon motor slowdown causes via single shot 19, inverter 21, and AND circuit 23 the resetting of latch 13, thus blocking the pulses from encoder FBC to the motor so that the latter stops. The waveforms present are displayed in Fig. 3 (not shown).