baber/WOPTO huggingface dataset:
Patent GB-1535445-A (GB)
Title: Digital data receiver
IPC: H04B7/005
Filed: 1976-12-20
Abstract: 1535445 Correcting intersymbol interference RAYTHEON CO 20 Dec 1976 [5 Jan 1976] 53026/76 Heading H4P In a digital p.s.k. receiver of the type wherein recirculating filter 20 provides a constant phase reference signal whose envelope is the same as that received, see Fig. 2 (not shown), the reference and input signals being multiplied and integrated, the integrated signal being compared with threshold values each pulse period to determine the digital values correponding to the received signals, see Fig. 3 (not shown), the integrated signal being dumped each period, means 28, 32, 34, 40, 33, 36 are provided to correct the integrated signal for errors due to intersymbol interference produced by overlap of the received envelopes. In operation summer 32 provides an error signal equal to the difference between the digital data ouput (Œ 1) and the integrated signal, the resultant being correlated with the previous output data bit in multiplier 34 and low pass filtered to provide an average, multiplier 33 ensuring that the reference signal to summer 28, representing an estimate of the error due to intersymbol interference, has the correct polarity. For each bit, sampling continues until the current bit decision is uncorrelated with the previous one, whence a final decision is made for that bit, the next bit being handled after the integrator signal is dumped. The receiver handles either binary p.s.k. signals, or, Fig. 4 (not shown), quaternary p.s.k. signals, in which case, the error signal is correlated with the previous bit value for both the "own" and quadrature channel, the low pass filtered results being combined to provide the "own" channel reference signal. By addition of multibit delay registers and corresponding multipliers, the means may enable interference from more than one preceding pulse to be cancelled. The above means, when added to the receiver, otherwise as described in relation to Figs. 2 or 4 of U.S.A. Specification 3,794,921 enables higher data rates to be received for given multipath distortion.
Patent GB-1119773-A (GB)
Title: Static inverter system
IPC: H02M7/515
Filed: 1965-12-14
Abstract: 1,119,773. Inverters. BORG-WARNER CORP. 14 Dec., 1965 [11 Feb., 1965], No. 53096/65. Heading H2F. An inverter (one phase of which is shown in Fig. 6) having a pair of semi-conductor switches 22, 23 connected in series with commutating inductances 27, 28 across the D.C. lines 20, 21 has an energy return circuit for the commutating energy stored in each inductor. For inductor 28 this comprises the other inductor 27, diode 50 and a primary winding 48 of transformer 56. Energy is returned to the supply both conductively through this circuit and inductively through the transformer 56 and the rectifying circuit 51, 52 connected to its secondary winding 49. In a more practical circuit (Fig. 7) reverse current diodes 33, 34 are provided which function also as the rectifier connected to the transformer secondary winding. The capacitors 31, 32 are not commutating capacitors but store energy to ensure that when the associated semiconductor switch is turned on energy is rapidly passed to the load. In the embodiment of Fig. 9 the first transformer comprises the windings 62, 63, 64 and the windings of the commutating inductors (all wound on a common core) are extended as shown at 70, 71.
Patent GB-1435624-A (GB)
Title: Oral hygiene composition
IPC: A61Q11/00
Filed: 1973-11-16
Abstract: 1435624 Oral hygiene compositions BEECHAM GROUP Ltd 27 Nov 1974 [16 Nov 1973] 53330/73 Heading A5B An oral hygiene composition comprises (a) a calcium carbonate abrasive; (b) an ionic fluoride: and (c) an ionic monofluorophosphate, the weights of ingredients (b) and (c) being sufficient to provide respectively from 40-80% and 20-60% of the total fluorine content of the composition.
Patent GB-1322209-A (GB)
Title: Production of sulphitobetaines
IPC: C07C301/00
Filed: 1970-11-10
Abstract: 1322209 Sulphitobetaines BADISCHE ANILIN- & SODA-FABRIK AG 10 Nov 1970 [11 Nov 1969] 53385/70 Heading C2C [Also in Divisions C5 and D1] Sulphitobetaines of the formula in which each R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> is an aliphatic, cycloaliphatic, araliphatic or aromatic radical, or each R<SP>2</SP> and R<SP>3</SP> may be hydrogen, or R<SP>1</SP> and one R<SP>2</SP> may form with the nitrogen atom a heterocyclic ring, are prepared by reacting i where each R<SP>3</SP> is as defined for R<SP>3</SP> or may contain one or more further epoxy groups, with "Aliphatic" includes amido and carboalkoxy groups. The thionamic acid and thionylamide starting materials may be prepared by reacting SO 2  with suitable primary or secondary amines or with tertiary amines, respectively. The products are useful as textile treating and detergent agents.
Patent GB-1332479-A (GB)
Title: Refining molten metal
IPC: C22C9/00
Filed: 1970-11-11
Abstract: 1332479 Alloy nozzle for refining metal melts BERRY METAL CO 11 Nov 1970 [18 Nov 1969] 53725/70 Heading C7A An internally-cooled nozzle for directional injection of a refining agent into a molten metal bath is made from an alloy comprising:- Al 0À005-0À3% and Zr 0À005-0À03% the balance, apart from impurities such as Cr and Fe, being de-oxidized Cu. The alloy is made under inert gas or vacuum conditions.
Patent GB-1416718-A (GB)
Title: Pulse generator for ignition systems
IPC: F02P7/03
Filed: 1972-11-22
Abstract: 1416718 Ignition systems BRUNSWICK CORP 22 Nov 1972 [23 Nov 1971] 53945/72 Heading F1B [Also in Division H2] In an ignition pulse generator for a two-stroke internal combustion engine 1, Fig. 1, two oppositely axially polarized arcuate magnets 28, 29 are rotated relative to a pick-up coil unit 17, 18 to cause pulses 43, Fig. 4 (not shown) of sequentially alternating polarity to be generated, the axial field sensed by the coil unit reversing sharply whenever air-gaps 34, 35 between the magnets pass by, but being substantially uniform in between such reversals. The magnets are provided with poleshoes 30, 31, and the coil unit with a yoke system 36, 37, 38 and pole-shoes 39. The pulses in the circuitry shown are despatched via resistors 19, 21 to the gates 20, 20 of two controlled rectifiers 15, 15' to allow a condenser 12 to discharge through two pulse transformers 14, 14', a further condenser 5 then being, able to discharge via further transformers 9, 9 to cause sparking at the plugs 2, 3. Further coil units may be placed around the magnets to produce more pulses. The magnets may also be formed in a single continuous member. The pulse generator provides good ignition at low cranking speeds.
Patent GB-1163487-A (GB)
Title: Rectified Output Voltage Control Device
Inventor: HORINO MASAO
IPC: H02M7/04
Filed: 1967-11-30
Abstract: 1,163,487. Rectifying. M. HORINO. 30 Nov., 1967, No. 54677/67. Heading H2F. [Also in Division G3] A voltage regulator comprises A.C. input terminals to; a controlled rectifier 1, e.g. a thyristor, connected to provide a D.C. output at terminals t 1  which may supply a load such as a photographic flash lamp; and a circuit including a switch 2, e.g. a transistor, for controlling the switching of rectifier 1 in such a manner that the output voltage is maintained constant, the switch 2 being associated with a reference Zener diode 4 and a photo-electric cell 6 arranged to receive light from a discharge tube 7, e.g. a neon tube, connected across the terminals t 1 . When the D.C. output voltage is below a desired value no discharge occurs in the tube 1, the photo-electric cell has a high impedance so that transistor 2 is non-conductive, and the rectifier 1 is maintained in a conductive state by a gate voltage derived from the input terminals t 0  by way of resistors R 1  to R 8  and diodes 3, 5. When the output voltage exceeds the desired value, the tube 1 conducts to illuminate the photo-electric cell the resistance of which decreases, whereby transistor 2 becomes conductive to short-circuit the gate voltage applied to rectifier 1 which thus causes the output voltage to fall, and this cycle is repeated so that the output voltage is maintained substantially constant. The regulator may include further capacitors and diodes to give a voltage-doubling effect, and two such modifications are described with reference to Figs. 2 and 3 (not shown).
Patent GB-1165719-A (GB)
Title: Improvements in or relating to Automatic Positioning Devices
Inventor: CASTELA ANDRE
IPC: E21B7/128
Filed: 1966-12-08
Abstract: 1,165,719. Sub-aqueous drilling. INSTITUT FRANCAIS DU PRETROLE DES CARBURANTS ET LUBRIFIANTS. 8 Dec., 1966, No. 55043/66. Heading E1F. .[Also in Division G3] An object, e.g. a drilling tool, is lowered from a floating vessel to a submerged structure along two guide wires the attitudes of which relative to the submerged structure are detected relative to two reference planes by means producing electrical signals which control the vessel to ensure that the object approaches the submerged structure at the desired attitude. In Fig. 1, parallel guide wires 11, 12, under tension, interconnect a drilling vessel N and a base plate 9 which is lowered on .to the sea bed by means of the wires and has a hole 10 constituting the entrance to a well 8. A drilling tool (motor 5, bit 6) is mounted on spacers 17, 18, which slide down guide wires 11, 12 as the tool is lowered by means of a flexible tube 28 unwound from a drum 29 by a motor-driven winch 41 and passing through a well 7 in the hull of the vessel. When spacers 17, 18 reach hole 10, the drilling tool passes on through collars on the spacers and into the well. Spacers 17, 18 serve to maintain guide wires 11, 12 parallel in the vicinity of the well. The guide wires are attached to base plate 9 by universal pivotted joints associated with potentiometers or selsyns (not shown) which produce signals corresponding to the attitude of the guide wires relative to the base. plate in mutually perpendicular, planes. These signals supplied through a cable 27, and a signal from a compass (not shown) indicating the attitude of the vessel, are applied together with their differential coefficients, to a computer CALC which controls units S 1 , S 2  adjusting the magnitude and direction of thrust of horizontal propellers H 1 , H 2  to move the vessel into such a position that guide wires 11, 12 produce accurate alignment of the drilling tool with the axis of hole 10. Application to the lowering of successive elements to extend the depth of drilling or the lowering of tools for cleaning, the well, is referred to. The position of the vessel, may alternatively be corrected by winches associated with anchored ropes.
Patent GB-1194550-A (GB)
Title: Device for Treating the Joints in Brickwork
Inventor: GREENGRASS NORMAN COMRADE
IPC: E04F21/165
Filed: 1967-12-05
Abstract: 1,194,550. Working stone. N. C. GREENGRASS. 23 Oct., 1968 [5 Dec., 1967], No. 55213/67. Heading B5E. An implement for raking the joints in brickwork for removing excess mortar in preparation for pointing the brickwork comprises a twowheeled carriage having wheels 1 mounted on an intermediate block 5, a rake member 8 mounted in the block, and a handle 6 mounted in the block for effecting manual movement of the implement. The rake member 8 may be in the form of a nail having a head 10 and is retained in an inclined bore in the block by a screw 11.
Patent GB-1248216-A (GB)
Title: Gaseous thrust engines
IPC: F02K9/86
Filed: 1968-11-21
Abstract: 1,248,216. Gaseous thrust engines. NORD-AVIATION SOC. NATIONALE DE CONSTRUCTIONS AERONAUTIQUES. 21 Nov., 1968 [24 Nov., 1967], No. 55299/68. Heading B7G. [Also in Divisions F1 and F2] In an engine wherein hot gas is expelled from a chamber 1a (Fig. 1, not shown), via a main nozzle (1b) gas is also passed to auxiliary nozzles arranged to provide thrust pulses having a radial component away from the main nozzle, the auxiliary nozzles having displaceable obstructing devices 4a to regulate the flow of gas therethrough, and the auxiliary nozzles and devices 4a are cooled by the injection of a laminar flow of liquid on to their respective surface portions. There may be eight such nozzles arranged in pairs symmetrically about the main nozzle, their mouths lying in a plane passing through the throat of the main nozzle and transverse to the longitudinal axis of that nozzle. The obstructing device 4a comprises a bulb movable through an hydraulic or pneumatic arrangement between a fully closed position A and a fully open position B. The bulb and the nozzle have helical cooling coils 5d 1 , 5j 1 , 5f 1  connected to a source of water at flow rate q 1  and 5k 1 , 5l 1 , 5g 1  connected to a source of water at flow rate q 2 . The coils, have respective outlets 5f-5l. The engine includes circuitry to vary the position of devices 4a in dependence upon the cooling water pressure and the flow rates q 1 , q 2 .
Patent GB-1178391-A (GB)
Title: Clip for attaching an Ashtray Housing In Support Panel.
Inventor: CROWTHER GEORGE NOEL
IPC: F16B2/24
Filed: 1965-12-31
Abstract: 1,178,391. Stud-and-socket fastenings. F. J. PRODUCTS Ltd. 2 Jan., 1967 [31 Dec., 1965], No. 55403/65. Heading E2B. [Also in Division A2] A sheet metal clip for securing a flanged ash-tray housing or the like 19 in an aperture in a panel 21, has a generally rectangular body portion 14, 15, 17 with a rectangular aperture and resilient tongues 12, 13 extending from the edges of the aperture and inclined slightly towards one another. The sides 14, 15 may be flanged and may be bent slightly away from the tongues. In a modification, the ends of the tongues are bent more sharply inwardly and may be serrated and the ends of the body portion also may be flanged.
Patent GB-1457431-A (GB)
Title: Copying apparatus
IPC: G03B27/52
Filed: 1973-11-30
Abstract: 1457431 Line-by-line copying AGFAGEVAERT AG 30 Nov 1973 [30 Nov 1972] 55729/73 Heading G2A [Also in Division F2] The reciprocating carriage of a line-by-line copying apparatus is propelled in one direction by a first constant speed drive for scanning and is returned at a faster speed by a second constant speed drive, transmission means between the constant speed drives and the carriage varying the velocity ratio at the ends of travel to effect acceleration and deceleration. As shown in Fig. 1 the carriage 1, 2 is propelled by a belt 12 through a link 11 so that alternate and opposite drive from shafts 16 and 17 takes the carriage at constant speed over the most of its travel but deflects the link 11 round the pulleys 14 and 15 at the ends of travel to stop and start the carriage. Coupling between the belt 12 and the carriage may be by pin and slot Fig. 2 (not shown). A constantly running main motor may drive pulley 14 through a magnetic coupling while pulley 15 is driven by a separate motor stopped and started as required Fig. 3 (not shown).
Patent GB-1400226-A (GB)
Title: Waste water process tank control facility
IPC: H02H5/00
Filed: 1972-12-06
Abstract: 1400226 Waste water treatment RALPH B CARTER CO 6 Dec 1972 [3 Feb 1972] 56257/72 Heading C1C A system for controlling a waste water process in a treatment tank provided with a plurality of mixers to be operated in accordance with a predetermined automatic program, comprises means for detecting a fault condition in the system, means for automatically shutting the system down upon detection of a fault condition, and means indicating the particular fault in the system. Preferably the system comprises at least one compressor driven by an electric motor, an indicator connected to said motor to indicate when it is running, a gas manifold connected to the output of the compressor, a plurality of valves and gas lines connected to the gas manifold, there being one valve and one gas line for each mixer, each such valve being connected to its associated mixer, means for supplying gas to the compressor input, pressure sensors one on the said gas supply means to indicate when the pressure drops below a predetermined level, the other between the compressor and manifold to indicate when the pressure is between predetermined limits, an indicator connected to each of the valves to indicate that the valve is open and gas is being supplied to the associated mixer, a control system connected to the sensors to shut down the system when any of the sensors detects an out-of-limit condition and to display the fact that a particular sensor is in said condition, and an indicator connected to said system to display the fact that an out-of-limit condition exists. A suitable system is shown in the accompanying figure and comprises a digester 12 provided with waste water inlet 14 and outlet 16 and a plurality of mixers 18-1, 18-2, ... 18-n. Each mixer is provided with water intake lines 17-1 etc. and water discharge lines 19-1 etc., the former lines being connected to boiler 40 via lines 56-1 etc. An appropriate signal from temperature sensor 46 will initiate a supply of heated water from the boiler to the mixers. Two compressors 20-1 and 20-2 are fed with gas via line 22 which includes pressure sensor 23. Gas manifold 24, which is provided at its input with pressure sensor 25, supplies gas from the compressors to the mixers via valves 26-1 etc. and gas lines 28-1 etc. These valves, the sensors and also the compressor motors 21-1 and 21-2 are connected to control box 11. Similarly, to control the flow rate and temperature of water fed to digester 12, sensors 44, 58 and 60 and sensor 46 are also connected to control box 11. When the system is in automatic operation, an amber heating light 82 and green lights will be illuminated on panel 13. Any fault in the system results in the system being shut down, red fault light 66 and one or more of red lights 36, 38, 64, 62 switching on. Said latter lights indicate a fault detected by sensors 23, 25, 60 and 58 respectively. A fault in any one of the valves 26-1 etc. will result in red light 66 switching on and the control system shutting down.
Patent GB-1247379-A (GB)
Title: A multi-engined single screw power plant
Inventor: MIZUSHINA MASAAKI
IPC: B63H23/00
Filed: 1968-11-27
Abstract: 1,247,379. Power plant. NIPPON KOKAN K.K. Nov.27, 1968 [Dec.5, 1967|, No.56303/68. Heading F1Q. A multi-engined single screw power plant comprises a first governor 3 for maintaining the speed of a first engine 1 at a desired value, a fuel injection valve 4 whose opening is automatically controlled by the governor so as to supply required amounts of fuel to the first engine 1, a second governor 5 for pre-setting the speed of a second engine 2 at a value which is higher than that set by the first governor and a second injection valve 6 whose opening is set by the second governor when the plant is driven with a torque lower than a prescribed torque but whose opening is set so as to drive the second engine at the same speed as the first engine, whose speed is controlled by the first governor, when the plant is driven with a torque greater than the prescribed torque. The invention can be applied to a more than threeengined single screw plant.
Patent GB-1195020-A (GB)
Title: Protective Covers for Vehicle Headlamp Assemblies.
Inventor: CRANMORE JOHN WEBSTER
IPC: B60Q1/00
Filed: 1966-12-21
Abstract: 1,195,020. Protecting guards. JOSEPH LUCAS (INDUSTRIES) Ltd. 20 Dec., 1967 [21 Dec., 1966], No. 57181/66. Heading B7B. The rear of a vehicle headlamp is protected by a plastics cover 22 having an outwardly extending rim 23 which engages a channel in the vehicle body, the cut-out 24 enabling the effective diameter of the rim to be reduced to allow installation.
Patent GB-1244016-A (GB)
Title: Method for preparing penicillins
IPC: C07D499/74
Filed: 1968-12-03
Abstract: 1,244,016. 6 - (1 - Aminocycloalkylcarboxamido) penicillanic acids. AMERICAN HOME PRODUCTS CORP. 3 Dec.. 1968 [19 Dec.. 1967], No. 57337/68. Heading C2A. 6 - (1 - Aminocycloalkylcarboxamido) penicillanic acids of the general formula wherein n is 0 or an integer from 1 to 4, and R<SP>1</SP> and R<SP>2</SP> are each hydrogen; C 1 -C 8  alkyl; C 1 - C 8  alkoxy; halogen or nitro, are prepared by reacting an N-carboxyanhydride of formula wherein n, R<SP>1</SP> and R<SP>2</SP> are as above, with 6-aminopenicillanic acid under reflux conditions in an anhydrous organic solvent in the presence of an organic amine. Suitable solvents are chlorinated hydrocarbons, ketones, ethers or esters; the amine may be di- or trimethyl-, di- or triethyl- or di- or trioctyl-amine.
Patent GB-1188010-A (GB)
Title: Improvements in and relating to the Manufacture of Chlorinated Polyvinyl Chloride.
IPC: C08F8/00
Filed: 1967-12-19
Abstract: 1,188,010. Purifying chlorinated P.V.C. KANEGAFUCHI CHEMICAL INDUSTRY CO. Ltd. 19 Dec., 1967 [13 Jan., 1967], No. 57515/67. Heading C3P. Chlorinated P.V.C. obtained by chlorination in aqueous suspension is purified to remove unreacted chlorine by treatment with a reducing agent in an aqueous medium. The P.V.C. may be a homopolymer or a copolymer, e.g. with propylene. Preferably the aqueous dispersion of polymer is first treated with an inert gas to remove as much chlorine as possible. The reducing agents exemplified are hydroxylamine hydrochloride, oxalic acid and sodium thiosulphate.
Patent GB-1261958-A (GB)
Title: Novel lubricating oil system and oil filter for internal combustion engines
Inventor: HU SHIH-EN
IPC: C10G29/06
Filed: 1969-11-25
Abstract: 1,261,958. Regenerating mineral lubricating oils. ESSO RESEARCH & ENG. CO. 25 Nov., 1969 [16 Dec., 1968], No. 57603/69. Headings C5E and C5F. Lubricating oil circulating in an internal combustion engine is treated by contact with one or more relatively oil-insoluble binary or ternary transition metal compounds retained in a chamber. The compounds can be used in the form of particles or on a carrier of diatomaceous earth, kaolin, kieselguhr, activated clay, charcoal or fuller's earth in a chamber before or after the oil filter or they can be used impregnated into the papers of the oil filter. Extensive lists of suitable transition metal compounds are given including oxides, salts and complexes. A lubricating oil comprises a solvent extracted neutral SAE low-30 grade base oil, 10 wt. per cent of a polyisobutylene V.I. improver, 3À5- 4 wt. per cent of a polyisobutenyl succinic anhydride imide of tetraethylenepentamine as a dispersant, a wax-alkylated naphthalene pourpoint depressant, a zinc di-(C 4 -C 5  alkyl) dithiophosphate, and less than 1% of an overbased calcium petroleum sulphonate. Reference has been directed by the Comptroller to Specification 1,205,860.
Patent GB-1217489-A (GB)
Title: Paper treatment
Inventor: BAILEY BRIAN EDWARD
IPC: D21H17/35
Filed: 1966-12-23
Abstract: 1,217,489. Paper; water-proofing. INTERNATIONAL SYNTHETIC RUBBER CO. Ltd. 18 Dec., 1967 [23 Dec., 1966], No. 57736/ 66. Headings D1P and D2B. Paper and like fibrous bodies are impregnated wih a composition comprising (a) depolymerized polybutadiene prepared by a process of Specification 1,057,014 or similar to that prepared by that process and (b) one or more cross-linking agents and then curing the impregnated body. The effect is to increase the strength of the paper, and its resisance to abrasion, water and solvents. The cross-linking agent may be an aromatic peroxide, e.g. benzoyl peroxide or dicumyl peroxide, an anhydride, e.g. phthalic anhydride or 7-methylbicyclo-(2,2,1)-hept-2-ene-5,6 anhydride, a di- or poly-isocyanate or blocked di- or polyisocyanate, a tetra-alkyl titanate or a curable resinous material, e.g. an alkyd resin derived from tall oil, linseed oil, dehydrated castor oil, safflower oil, walnut oil, sunflower oil, soyabean oil, cottonseed oil, an epoxy resin, a phenol-formaldehyde resin, a melamine- or ureaformaldehyde resin or a coumarone resin. The depolymerized rubber may be applied with or without a solvent, e.g. white spirit, benzene, toluene, xylene, isophorone, butyl acetate, methyl ethyl ketone, methyl isobutyl ketone, methylene chloride, tetrachlorethylene or mixtures thereof. The composition may also contain a free-radical catalyst to accelerate the cure, and an organically soluble transitionmetal salt to initiate it. When the product, e.g. a gasket, is to be used in contact with a heated body, heat from that body may be relied on for the cure.