baber/WOPTO huggingface dataset:
Patent GB-964503-A (GB)
Title: Improvements in or relating to regulating systems for low voltage generators
IPC: H02J7/24
Filed: 1960-12-12
Abstract: 964, 503. Automatic voltage control systems. ROBERT BOSCH G.m.b.H. Dec. 12, 1960 [Dec. 11, 1959], No. 42612/60. Heading G3R. [Also in Division H2] A variable speed self-excited alternator on a motor vehicle supplies a D. C. load through a rectifier and the D.C. voltage is regulated by a transistor in the field circuit of the alternator controlled by a voltage-responsive electro-magnetic relay. The alternator 13 and rectifier 16 charge a battery 20 and also supply the field 15 and a load 25 when the ignition switch 23 of the vehicle is closed. The field 15 is in series with the emitter/collector circuit of a transistor 30, the emitter/base current of which is carried by a portion of a resistor 40. This resistor is also in series across the D.C. output with the voltage coil 35 of a relay having normally open contacts 36, 37. When the D.C. voltage reaches an upper limit, contacts 36, 37 close, thereby connecting together the base and the emitter of transistor 30 and so reducing the field current. This base/ emitter short-circuit also increases the current through the portion of resistor 40 that normally carries the base/emitter current, thereby reducing the voltage across the voltage coil 35 and so tending to re-open the contacts 36, 37 to increase the speed of response. A current limiting coil 47 on the relay is in series with a non-linear diode 48 across a shunt resistor 19. The relay has a further contact 42 in series with a battery charge warning lamp 45,the contacts 36, 42 being arranged to stay closed until the generator voltage is equal to the voltage of the battery 20.
Patent GB-1447991-A (GB)
Title: Device for vapourizing liquid fuel
IPC: F02M31/18
Filed: 1973-09-11
Abstract: 1447991 Vaporizing device for fuel in I.C. engine SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 11 Sept 1973 42635/73 Heading F4U [Also in Division F1] A device for vaporizing liquid fuel prior to its introduction into the combustion chamber of an I.C. engine or gas turbine comprises a heat pipe 1 containing a heat transfer fluid which is adapted to receive heat from the engine or turbine exhaust system while in the liquid phase in a zone 2 and in the vapour phase in a zone 3 condenses so as to transfer heat to the fuel to be evaporated (which passes through lines 16). In the heat pipe 1 a separate heater 11 is present which only heats part of the liquid in a startheat-receiving zone 10 so that evaporation occurs more quickly under cold-start conditions. The engine or turbine exhaust gases are supplied via ducts 8 and 9. Additional cooling of the vapour phase of the heat transfer fluid is provided by a multitubular condenser 5 which may be cooled by liquid from the engine cooling system. A container 13 is connected to the top of the heat pipe 1, in which some liquid is condensed, trapping a non-condensable gas which is included for preventing overheating. As the pressure rises with temperature, the non- condensable gas is compressed in the container 13 and the upper part of pipe 1 allowing more of the condensable vapour to contact condenser 5. Container 13 can also be cooled. If a heat transfer fluid comprising compounds with different boiling points is used, the one with the lower B.P. tends to collect in the container 13 during running and is returned when the engine cools. The heat transfer fluid may consist of water and alcohol, e.g. methanol and/or ethanol or ethylene glycol. Alternatively, 2-octanol, decane or tetralin may be used. To control heat supply to the heat pipe, the amount of exhaust gas passing through ducts 8, 9 is variable by means of a diverter valve in tde exhaust system which may be responsive to pressure in the heat pipe, throttle position or exhaust gas temperature. A compressor may be provided in the engine inlet system upstream or downstream of the air/fuel mixture point. An adjustable air bleed valve may be provided near the inlet of each cylinder. Water or steam may be injected into the cylinders.
Patent GB-1386503-A (GB)
Title: Digital shift apparatus
IPC: G11C19/00
Filed: 1972-09-14
Abstract: 1386503 Shift network INTERNATIONAL BUSINESS MACHINES CORP 14 Sept 1972 [8 Oct 1971]. 42658/72 Heading G4A In a shifting network comprising a number of shift levels each arranged in response to respective control signals selectively to shift a group of data bits by respective predetermined amounts right and left, control circuitry is provided to enable the shift network to operate serially on groups of bits, which together form a data word, to produce a series of shifted partial results which when logically combined represent the data word shifted in a specified direction by a specified number of bit positions. Assuming the width of the network is eight bits (one byte) and an n byte word is to be shifted left by a number of bit positions SA the procedure is as follows: (i) shift byte 1 (i.e. the least significant byte) left by SA, (ii) shift byte 1 right by the eight complement of SA, (iii) shift byte 2 left by SA, (iv) OR the result of (ii) and (iii), (v) shift byte 2 right by the eight component of SA, (vi) shift byte 3 left by SA, (vii) OR the result of (v) and (vi), (viii) shift byte 3 right by the eight complement of SA, (ix) shift byte 4 left by SA, (x) OR the result of (viii) and (ix) and so on. For a four byte 32 bit word the final result is obtained by taking the results of operation (i), (iv), (vii), and (x) above as bytes 1-4 of the result. It will be seen that right shifting a byte by the eight complement of SA moves those bits at the left hand end of the byte which are to be shifted into the adjacent byte during a left shift to the right hand end of the byte. By OR-ing the right shifted byte with the adjacent byte shifted left by SA the shift of bits into the adjacent byte is accomplished. The arrangement illustrated in Fig. 2 has SA inputs, a complement input, and a right shift control input which via an inverter produces a left shift control input. By providing the circuit with the appropriate inputs in accordance with the above a series of result bytes are produced which when combined give the required result. In a further embodiment, Fig. 1 (not shown), a circuit is provided which operates according to a different algorithm involving right shifting by the seven complement of SA and an additional one bit shift right. The circuits will produce right shifts when operated in accordance with the appropriate algorithm.
Patent GB-1167806-A (GB)
Title: Improvements in and relating to Furniture.
Inventor: LEONARD JAMES WILLIAM
IPC: A47B7/02
Filed: 1967-09-19
Abstract: 1,167,806. Folding tables. EDUCATIONAL SUPPLY ASSOCIATION Ltd. 8 Aug., 1968 [19 Sept., 1967], No. 42666/67. Heading A4H. A table top 1 is hinged to a horizontal top bar 3 of a leg frame and is supported in horizontal position by a bracket 8 which is pivotably mounted between the top bar 3 and a tie bar 5 on the leg frame.
Patent GB-1516336-A (GB)
Title: Apparatus for measuring the distance to a point on the inner wall of a hot furnace
IPC: C21C5/44
Filed: 1975-10-21
Abstract: 1516336 Optical range finding AGA AB 21 Oct 1975 [20 Nov 1974] 43137/75 Heading H4D The thickness of the refractory lining of a hot steel furnace is determined by the distance to a point selected thereon and is measured by transmitter apparatus which focuses a modulated light beam (e.g. from a laser) on to the point. The reflected light beam is received in a photoelectric receiver in close proximity to the transmitter and comprises an optical and filtering system producing maximum rejection of the self-radiation of the furnace in the received signal, which is demodulated, heterodyned and phase-compared with transmitted signal to allow calculation of the distance in known manner. The optical system Fig. 2, comprises a lens system 21 behind which a filter 22 is located, a diaphragm 23 and detector 24. Lens 21 and diaphragm 23 limit the sensitivity of detector 24 to a very small area around the measuring point and filter 22, which may comprise a "spike" filter in combination with a comb (e.g. Fabry-Perot) filter of bandwidth 2mm around the transmitted light wavelength, and which substantially excludes radiation at the wavelength emitted by the furnace.
Patent GB-1098065-A (GB)
Title: Improvements in or relating to extracts of marrubium
IPC: A61K36/00
Filed: 1964-10-22
Abstract: An extract of Marrubium vulgare having anti-spasmodic, anti-migraine, analgesic and anti-diarrhoeaic effects is obtained by subjecting parts of Marrubium vulgare, e.g. the leaves and/or flowers, to extraction with an aqueous solvent, e.g. water at a temperature not greater than 100 DEG C. and spray-drying the extract at a temperature not greater than 60 DEG C.  The spray-dried extract may be formulated with suitable carriers into tablet and cachet forms.
Patent GB-1510748-A (GB)
Title: Double sync burst tdma system
IPC: H04B7/212
Filed: 1976-10-18
Abstract: 1510748 Time division multiplex system DIGITAL COMMUNICATIONS CORP 18 Oct 1976 [20 Oct 1975] 43196/76 Heading H4M In a TDMA communication system, e.g. a satellite communication system comprising a plurality of earth stations each transmitting information in burst form to the satellite for re-transmission to one or more other earth stations, each station times its respective data burst from a reference synchronizing burst transmitted by a designated primary station. Another station transmits a secondary synchronizing burst timed from the primary synchronizing burst. Each station has a burst synchronizer operated by receipt of the primary synchronizing burst to maintain synchronism, but if this primary burst should fail, synchronization is ensured by the presence of the secondary synchronizing burst which is also received by each station.
Patent GB-1483987-A (GB)
Title: Dissolved oxygen probes
IPC: G01N33/18
Filed: 1975-10-22
Abstract: 1483987 Oxygen sensor FISCHER & PORTER CO 2 Oct 1975 [20 Jan 1975]  43456/75 Heading G1N An immersible oxygen sensor comprises an insulating casing 10, closed at one end by an oxygen permeable membrane 25 and defining an electrolyte chamber 12 and a terminal chamber 13; a noble metal measuring electrode 24 mounted on one end of insulating stem 22, the other end of which is supported by annular copper electrode 14 which extends into both chamber 12 and 13 and potassium hydroxide electrolyte filling the electrolyte chamber. The electrodes are connected to terminals on block 21 as are load resistor 29 and temperature compensation thermistor 18. The membrane 25 may be of polytetrafluoroethylene, fluorinated ethylene-propylene copolymer or polyethylene and is held in place by bezel 27 which force fits on to retainer member 26. The thermistor 18 and fitter plug 16 are located in constriction 11 between chambers 12 and 13. The measuring electrode is preferably of platinum or gold. The sensor may be used for control of oxygen in sewage treatment or boiler water. Temperature compensation is provided by connecting the thermistor as feedback in an amplifier connected to the sensor and load resistor output.
Patent GB-989907-A (GB)
Title: Crystalline fibres of titania, zirconia and/or zircon
Inventor: RUSSELL ROBERT GRANT
IPC: C04B35/622
Filed: 1962-11-16
Abstract: The invention comprises crystalline fibres of titania, zirconia and/or zircon, either alone or admixed in any combination, contained in a vitreous mother matrix comprising boric anhydride and, preferably, an oxide of an alkali metal of atomic number at least 11. The boric anhydride and oxide are preferably present in a molar ratio of approximately 3 : 1. The fibres may be prepared by dissolving the crystal-forming material, i.e. titania, zirconia and/or zircon, in a molten matrix comprising boric anhydride and then reducing the degree of solubility of the crystal-forming material to cause it to crystallize into crystalline fibres either by cooling the melt or, when an alkali metal oxide is present, by heating the melt to cause part of the solvent material to volatilize, followed by cooling the melt to ambient temperature to form a vitreous matrix containing the said crystalline fibres and, if desired, washing away the matrix to separate it from the crystalline fibres.  The melt may be agitated during cooling.  The liquid of the melt is circulated in a direction generally along the length of the crystalline fibres being formed. The crystal-forming solution may be composed of the crystal-forming material, borax and boric anhydride in approximately equimolar proportions. By varying the rate of cooling of the melt, the number of crystals obtained and the rate of crystal growth may also be varied.
Patent GB-1075718-A (GB)
Title: Vehicle tyres
IPC: B60C7/12
Filed: 1965-10-13
Abstract: 1,075,718. Wheel tyres. VORWERK & SOHN KOMM. GES. Oct. 13, 1965 [Oct. 14, 1964], No. 43533/65. Heading B7C. A solid tyre comprises resilient rings 5, 7 bonded to a rigid intermediate ring 4 which may be of metal or synthetic plastics. The rings 5, 7 may be of differing physical characteristics, e.g. the ring 5 may have a lower shore hardness than ring 7, and of different materials, e.g. the ring 7 may be of polyurethane and ring 5 of rubber. The tyre is held against the wheel rim by either layers of steel wire fabric 9 or steel wire bundles (Fig. 2, not shown) embedded in rubber 10 vulcanized to the ring 7.
Patent GB-1193367-A (GB)
Title: Process for the Production of Allyl Ruthenium Tricarbonyl Halides
Inventor: PINO PIERO
IPC: C07C37/11
Filed: 1968-09-13
Abstract: 1,193,367. #-Allyl ruthenium tricarbonyl halides. LONZA Ltd. 13 Sept., 1968 [15 Sept., 1967], No. 43591/68. Heading C2J. #-Allyl ruthenium tricarbonyl halides are produced by reacting trimeric ruthenium tetracarbonyl with an allyl halide of the formula where R is hydrogen or a radical which is inert under reaction conditions and x is chlorine, bromine or iodine, in an organic solvent above 30 C. The preferred solvents are aliphatic and aromatic hydrocarbons. The reaction may optionally be carried out in an inert gas atmosphere. Compounds specified include: #-allyl ruthenium tricarbonyl chloride; #-allyl ruthenium tricarbonyl bromide; #-allyl ruthenium tricarbonyl iodide; 2-methyl #-allyl ruthenium tricarbonyl chloride.
Patent GB-919797-A (GB)
Title: Remote control systems
Inventor: HURST STANLEY LEONARD
IPC: B61L7/08
Filed: 1960-12-21
Abstract: 919,797. Automatic phase control systems; synchronizing oscillators. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. Dec. 5, 1961 [Dec. 21, 1960], No. 43861/60. Classes 40 (5) and 40 (6). [Also in Group XXXVIII] Received pulses X, Fig. 1, are applied to a comparison circuit TR1, TR2 together with interleaved pulses Y which bear a fixed phase relationship to output pulses Z which are to be synchronized to pulses X. Rectifier MR1 and smoothing circuit R1, R2, C1, C2 apply a steady D.C. bias to multivibrator TR3, TR4. If pulses Z drift from synchronism the D.C. bias is automatically adjusted to restore the correct phase relationship between pulses X and Z. The smoothing circuit has a large time constant to minimize the effect of missing or multilated pulses X. In Fig. 2, three mono-stable circuits A, B, C are provided, B and C together forming a freerunning oscillator and, in normal operation, A and C being triggered simultaneously by a pulse X and by B relaxing respectively, trigger pulses being supplied to B when A and C relax simultaneously. If a pulse X triggers A early with respect to a pulse Z, then B is triggered by A before C relaxes, and when B relaxes C is triggered at the same time as the next X pulse arrives (if it is correctly spaced from the preceding pulse). If a pulse X arrives late, the trigger pulse from C is suppressed by diode MR4 and the operation of BC is retarded. Spurious pulses X which arrive outside a given period in relation to pulses Z are ignored, being suppressed by diode MR5, whereas BC is maintained in oscillation if any pulses X are missing. Specification 886,663 is referred to.
Patent GB-1240680-A (GB)
Title: Induction motor control
Inventor: VERGEZ JULES PAUL JR
IPC: H02P23/08
Filed: 1968-09-16
Abstract: 1,240,680. Control of A.C. motors. TEXAS INSTRUMENTS Inc. 16 Sept., 1968 [4. Oct., 1967], No. 43961/68. Heading H2J. An induction motor 10, having windings 12, 13, 14, interconnected at a common junction 16 to which a variable voltage is supplied froma power supply 21, is controlled by the sequential actuation of power switches 17, such as SCRs 41, 42, 43, Fig. 7, or power transistors 152, 153, 154, Fig. 8, to energize the windings sequentially and thereby generate a rotating magnetic field, and a speed voltage induced in the windings and proportional to the actual speed of rotor 11 is used to control the voltage supplied to junction 16 from the variable supply 21 and to control the sequencing frequency of the power switches 17 to vary the motor speed. Induced voltage sensors 18 supply one input terminal of a differential amplifier 19, the other input of which is from the power supply 21, and the output, which is a voltage proportional to slip, is compared with a slip reference voltage in a differential amplifier 22, the output of which produces a control signal for the supply 21 and for a voltage controlled oscillator 26 driving a logic circuit 27 operating the power switches 17, the output signal from amplifier 22 passing through a maximum motor speed controller 24. By rearranging the logic pulses from unit 27, the rotation of motor 10 is reversed and the energizing sequence is 12, 14, 13. The speed voltage responsive means includes sensor diodes 31, 32, 33, connected to windings 12, 13, 14, to be forward biased by an induced current and back biased during the time a winding is energized from supply 21. The sequentially sampled induced speed voltages are supplied to amplifier 19 after a delay generated by a circuit including Zener diode 30, resistors 34, 35, 36, and a transistor 88 coupled to the output of a pulse-shaping amplifier 89 through a resistor 91. Amplifier 89 receives a signal from a delay unit 92 which is actuated by a signal from logic circuit 27 each time it generates a pulse to one of the SCRs 41, 42, 43. Three pulse trains energize each winding 12, 13, 14 for 120 degrees or for 240 degrees, Figs. 2, 9 (not shown).
Patent GB-1018557-A (GB)
Title: Process for the purification of cyclohexanone and homologues thereof
Inventor: MUELLER KARL-HEINZ
IPC: C07C45/82
Filed: 1962-11-22
Abstract: Cyclohexanone, or a homologue containing 1 or 2 alkyl groups of up to 4 carbon atoms each, obtained by the dehydrogenation of the corresponding cyclohexanol, is freed from unsaturated ketonic impurities by dispersing in the crude cyclohexanone about 0.01-1% by weight of an alkali-metal or alkaline-earth metal compound of alkaline reaction, and distilling the cyclohexanone in the presence of the alkali or alkaline-earth metal compound. Specified compounds of alkaline reaction are alkali and alkaline-earth (other than magnesium) hydroxides, alcoholates of 1-4 carbon atoms, phenolates and naphtholates, and alkali-metal carbonates, a number of suitable compounds being specified.  The alkali or alkaline-earth metal compound may be taken as such or formed in situ, e.g. from an oxide, hydride or carbide. Conventional dehydrogenation catalysts may be used for the conversion of the cyclohexanol into cyclohexanone, and a number of suitable catalysts are specified.  The dehydrogenation may be carried out in a single stage or in a number of stages, and the cyclohexanol starting material may have been obtained by the hydrogenation of the corresponding phenol, or by the hydrogenation and hydrolysis of aniline, the toluidines, the xylidines or the corresponding nitro compounds, or by the atmospheric oxidation of cyclohexane.  The distillation of the cyclohexanone product is preferably effected in at least two stages, the compound of alkaline reaction being added before the first stage or at a later stage.  In the first stage low-boiling impurities may be removed at a pressure between 300 mm. and 5 atm., and cyclohexanone then distilled from the residue at a pressure of 1-200 mm.  Examples are given of the treatment of (1) methylcyclohexanol, obtained by hydrogenation of cresol, and (2) cyclohexanol, obtained by passing a mixture of aniline, steam and hydrogen over a hydrogenation catalyst.
Patent GB-1522855-A (GB)
Title: Holder for an injection syringe
IPC: A61M5/24
Filed: 1975-10-28
Abstract: 1522855 Injection syringe holder PHILIPS GLOEILAMPENFABRIEKEN NV 28 Oct 1975 [31 Oct 1974] 44359/75 Heading A5R An injection syringe holder consists of a channel-shaped body 1 provided with a shoulder 3 at one end to locate a medicament containing ampoule, and through which a needle integral with the ampoule projects, and at the other end with a guide 6 for a plunger 7, a sliding piece 14 through which the plunger passes being movable along the body I to locate an ampoule against the shoulder and being provided on its outer surface with teeth which engage further teeth on the inner surface of the channel. The sliding piece is movable, either by pushing on bevels 18 or by gripping together raised edges 17, the pieces being formed from resilient plastics, and provided with a conical front end 21 to centre an ampoule, the plunger having a threaded end 11 to fix with the ampoule. In a modification the teeth are formed as ratchet teeth and the sliding piece may only be slid in one direction, movement in the other direction necessitating gripping together the raised edges 17.
Patent GB-1016978-A (GB)
Title: Improvements relating to lavatory chains
Inventor: LARKIN DEREK JAMES
IPC: E03D5/02
Filed: 1963-11-11
Abstract: 1,016,978. Lavatory chains. PLASMET WARE Ltd. Nov. 11, 1963, No. 44410/63. Heading B8A. [Also in Divisions B4 and E1] A lavatory chain is made adjustable in length by the provision of a hollow member which can be secured to the chain 10 as by a cross pin 14, with slack spare chain accommodated inside the hollow member. Preferably, and as shown, the hollow member constitutes the chain handle 13; but in Fig. .1 (not shown) the chain has a conventional handle and the other end is attached by two cross pins to a hollow sleeve, within which a length of slack chain hangs between the pins.
Patent GB-1344143-A (GB)
Title: Ammonia recovery and liquefaction
IPC: F25J3/06
Filed: 1971-09-23
Abstract: 1344143 Ammonia recovery process CLUETT PEABODY & CO Inc 23 Sept 1971 [16 Nov 1970] 44414/71 Heading F4P Recovery of the ammonia content of air withdrawn at 12, 13 from a textile treatment chamber 11 maintained at just below atmospheric pressure, is effected by bubbling the gas mixture through liquid ammonia in a cooler 14, compressing the so-cooled mixture at 19 to up to 45 p.s.i. bubbling it through liquid ammonia in a second cooler 23, further compressing the gaseous mixture at 25 to about 180 p.s.i. passing it through the shell space of a water-cooled condenser 21, withdrawing condensed ammonia at 32, passing ammonia lean air at 33 through the shell space of a condenser 34 cooled by liquid ammonia, withdrawing the so condensed residual ammonia at 42 and passing it to the base of cooler 23 and withdrawing ammonia free air at 37.
Patent GB-1572507-A (GB)
Title: Internal combustion engines
IPC: B22D23/10
Filed: 1976-10-26
Abstract: A system is disclosed for preventing overheating of a carburetor of the type which is placed with an intake manifold above an exhaust manifold. A heat insulating plate is disposed substantially horizontally between the intake manifold and the carburetor. This plate extends to substantially cover the area above the exhaust manifold. A substantially vertical plate extends upwardly from the heat insulating plate at an edge thereof most distant from the engine. A path is thereby created for the convection currents from the exhaust manifold to bypass the carburetor.