baber/WOPTO huggingface dataset:
Patent GB-1358879-A (GB)
Title: Burner assembly for providing reduced emission of air pollutant
IPC: F23D11/00
Filed: 1971-11-08
Abstract: 1358879 Low-pollution burners TRW Inc 8 Nov 1971 [20 Nov 1970] 51829/71 Heading F4T A burner comprises coaxial conduits 13 and 14 which respectively feed air or other oxidizing agents from a supply conduit 20 and a mixture of fuel from a conduit 22 and a mixing gas from a supply tube 21 into a combustion chamber 10, the fuel and mixing gas being discharged through radial ports 17 and the oxidizing agent encountering a deflector disc 16 to produce more uniform mixing. The mixing gas used may be an inert or oxidizing gas or a recirculated combustion product. For more effective atomization of liquid fuel the supply conduit 22 is provided with a tangential inlet orifice 23 in the conduit 14 and a cylinder 37 with a helically grooved internal surface 38 is provided in the conduit 14 to give the fuel a centrifugal motion. Gaseous products of combustion are recirculated through a conduit 30 by a pump or fan 31. A tube 42 for cooling gas with a further deflector 43 is provided inside the conduit 14 and air manifolds 40 and 41 are provided to control conditions in the combustion chamber. Pulverized solid matter can be introduced into the fuel supply conduit 22 through a mixing element 29. In an alternative embodiment (Fig. 2, not shown) the conduit 14 is axially movable and is formed at its downstream end with a flared external surface which is moved upstream towards a complementary flared internal surface at the downstream end of the conduit 13 so as to reduce the rate of flow of oxidizer through the annular outlet between the two conduits. By suitable choice of fuel/oxidizer ratios, uniform mixing of the gases and control of flame temperature the conical flame 36 produced by the burner is stated to have a reduced production and emission of atmospheric pollutants.
Patent GB-1223916-A (GB)
Title: Magneto optical detector
IPC: G02F1/09
Filed: 1968-11-01
Abstract: 1,223,916. Magnetic store read out arrangements. INTERNATIONAL BUSINESS MACHINES CORP. 1 Nov., 1968 [9 Nov., 1967], No. 51903/68. Heading H3B. In a read out arrangement for a magnetic store comprising a transparent plate 12 of magneto optical material, such as a garnet, in which remanent magnetic states as shown by arrows 14 are established in discrete zones 13 to represent digital information, a plane polarized light beam 10 from a source 11 is converted by the zone through which it passes into an elliptically polarized beam 10a having a direction of polarization (shown at 16 and 17 in Figs. 1 and 2 respectively) determined by the direction of zone magnetization, the polarization direction, and hence the magnetic direction of the zone, being identified by a detector 20. The detector comprises a compensator 21 which converts elliptical polarization 16, 17 to circular polarization 26a, 26b, followed by a quarter wave plate 22 which converts circular polarization to plane polarization, the orientation of plane polarization 28a, 28b being determined by the direction of circular polarization 16, 17. One orientation of plane polarization is rejected by an analyser 24, so that a light beam is detected by a photo-electric cell 25 only when the magnetic state of the zone in the light path is in a particular one of its two possible directions. The compensator 21 may selectively absorb a plane polarized component of the elliptically polarized light or may be a Babinet or solid compensator.
Patent GB-1198727-A (GB)
Title: Method of Refining Vegetable, Animal and Marine Oils
Inventor: KOEBNER ADOLF
IPC: C11B3/06
Filed: 1967-11-15
Abstract: 1,198,727. Refining fatty oils. MARCHON PRODUCTS Ltd. 8 Nov., 1968 [15 Nov., 1967], No. 52065/67. Heading C5C. Fatty oils containing free unsaturated fatty acids and having iodine values of at least 45 are refined by treating with an aqueous alkaline solution in the presence of a hydrotrope which is a strong aqueous solution of a phenyl or an alkylphenyl sulphonate salt having up to 3 alkyl substituents, whose total number of carbon atoms is not more than 4, the molar proportion of sulphonate salt to free acid content of the crude oil being from 2 : 1 to 1 : 1 The treatment is preferably effected at 40- 80‹ C. using sodium xylene sulphonate of concentration 35-60% by wt. based on the total amount of water. The alkaline solution may be NaOH or Na 2 CO 3 . The process gives rise to an upper oil layer, a lower aqueous layer and an intermediate aqueous layer containing a complex comprising a soap, a sulphonate salt and water. The oil layer after removal of the aq. layers may be treated with or further quantity of sulphonate salt. The aqueous layers may be acidified with a mineral acid and the mixture allowed to separate into a fatty acid layer and an aqueous hydrotrope layer, which may be recovered.
Patent GB-1333223-A (GB)
Title: Inflatable shelter
IPC: E04H15/20
Filed: 1970-11-02
Abstract: 1333223 Pneumatic tents PNEUMATIQUES CAOUTCHOUC MANUFACTURE ET PLASTIQUES KLEBER-COLOMBES R LAPORTE and P M DES REYSSIERS 2 Nov 1970 [3 Nov 1969] 52080/70 Heading E1A A collapsible shelter for a swimming pool, sports stadium &c consists of two series of superimposed arcuate tubes 18, 19 each of which is disposed between girders 12, 14 or 13, 15 and covered by an outer skin 20 or 21 and, if desired, by an inner skin 22, 23. The tubes of each series are inflated in turn as they extend from the channel girder 12 or 13 to form a self-supporting structure. The external sheet may be provided with tensioning means, see Fig. 14 (not shown) and the internal sheet may be made from a fabric permeable to gas or one having a large mesh or perforations therein. For numerous minor details concerning joints, configuration of tubes, ventilation, guide arms for holding the tubes and material construction of the girders the Specification and remaining drawings, (not shown), should be referred to.
Patent GB-1281057-A (GB)
Title: A method of and an apparatus for eliminating misleading doppler signals
IPC: G01S13/92
Filed: 1969-10-24
Abstract: 1281057 Doppler radar; rate of charge and amplitude detectors ZELLWEGER Ltd 24 Oct 1969 [25 Nov 1968] 52127/69 Headings H3T and H4D A Doppler radar system wherein a value  corresponding to the Doppler frequency only passes to an indication stage after it has been examined, has a differentiator acting on the said value wherein if a tolerance range, governed by the said value, for the differential is exceeded, the corresponding Doppler signal is rejected. A negative voltage, U 1 , corresponding to the Doppler frequency is applied to the input terminal 1. This voltage is differentiated by capacitor 2 and passes through a limiter stage-diodes 14, 15- and a transistor 5, to the output point 11. This voltage U 11  is applied to rectifying diodes 18, 19 and transistor 17 which align the voltage changes in the same sense i.e. negative going. The diodes 18, 19 are biased by the voltage applied to the emitter of transistor 21, this voltage being controlled by the value of the input voltage U 1  applied to junction 22 through resistor 26 which may be fixed or a VDR thus making the relationship between the tolerance range and the input voltage either linear or quadratic. If the magnitude of the differentiated signal U 11  exceeds the required threshold set by the input voltage U 1 , the transistor 21 is turned off, causing the potential at point 27 to rise to +12V. This rise in potential is transmitted through a surge limiting diode 29 and emitter follower 30 to switching point 34. Capacitor 35 charges up to +12V and transistor 38 is turned off, causing the potential at point 43 to sit at -15V, this signal being conveyed to terminal 45 which is connected to the indicator stage and causing the indicator to be blocked. If the large variations in U 1  disappear and a steady Doppler voltage is measured, transistor 21 turns off, likewise transistor 30 and the capacitor 35 begins to discharge through resistor 36 towards the negative voltage U 1 . Thus, the larger the value of U 1 , the faster does the capacitor 35 discharge. If the voltage at point 34 falls below the switching voltage of transistor 38, the potential at point 43 rises to about + 1V and this signal is passed tor unblock the indicator stage. Thus if the variations in U 1  are within the tolerance range controlled by U 1  through resistor 26 for a time determined by the time constant of capacitor 35, resistor 36 and the magnitude of U 1 , the speed of the vehicle will be indicated. However if the large variations return the capacitor 35 is recharged to +12V and the indicator stays blocked. When no vehicle is present, the indicato stage may be blocked by applying a suitable voltage to terminal 33.
Patent GB-1312268-A (GB)
Title: Control systems for internal combustion engines
IPC: F02D41/36
Filed: 1970-11-04
Abstract: 1312268 Engine fuel and ignition control systems NIPPONDENSO K K 4 Nov 1970 [13 Nov 1969] 52510/70 Heading G1N In an I. C. engine fuel injection and ignition control system, signals representing intake manifold pressure, engine temperature, and engine revolution are combined in a device 3 to provide a voltage representing the desired amount of fuel to be injected, this voltage being applied, together with a fuel injection starting signal, to a fuel injection signal generator 5 to provide a train of pulses each having a width representing the desired amount of fuel, the fuel injection signals being distributed at 7 in response to a signal derived in synchronism with engine rotation before injection occurs in a specific cylinder, and the signals representing intake pressure and engine revolution are also combined in device 3 to provide a voltage representing a desired ignition angular setting, this signal being applied, together with a saw-tooth wave generated at 4 in synchronism with a detected specific crankshaft position, to an ignition signal generator 6, to provide a train of ignition pulses which are distributed at 10 under control of the specific cylinders signal. The injection starting signal generator is, in the embodiment shown, the saw-tooth generator 4. In addition, the voltage representing the desired amount of fuel to be injected, is affected by the outputs of a throttle speed sensor, a throttle position sensor and a starting sensor, each enriching the fuel supply in response to acceleration, fully open throttle and starting, respectively. A fuel injection interrupting signal generator is also provided to cut of fuel when the temperature of the engine is normal but the intake pressure is extremely low, i.e. throttle closed and engine acting as a brake.
Patent GB-1184677-A (GB)
Title: Improved Laminated Tubular Material
Inventor: MOFFAT BARRY JOHN
IPC: F16L11/08
Filed: 1967-11-17
Abstract: 1,184,677. Bags. WALTER H. FELTHAM & SON Ltd. 14 Nov., 1968 [17 Nov., 1967], No. 52523/67. Heading B8K. [Also in Division F2] A bag is formed from a laminate of foamed synthetic resin (e.g. polyurethane) and knitted fabric by folding to form a lengthwise fold with the fabric outside, sewing along a line parallel to the adjacent longitudinal edges to form a tube, and sewing across an open end thereof. The bag may be provided with a label and a loop for closing the open end. Sewing may be by overlock stitching. Knitted fabric may be provided on both sides of the foam.
Patent GB-1213870-A (GB)
Title: Improvements in or relating to the generation of cool working fluids
IPC: F42B3/04
Filed: 1968-11-06
Abstract: 1,213,870. Forcing liquids by gaseous pressure. ROCKET RESEARCH CORP. Nov.6, 1968 [Nov.7, 1967], No.52524/68. Heading F1R. [Also in Division B1 In apparatus for generating a cool working gas for e.g. inflating an aircraft escape slide, the combustion gas of a solid propellant cartridge is mixed in countercurrent impinging contact with a pressure-liquefied refrigerant gas. As shown hot gas is generated by combustion of a cartridge 14 and part passes through passages 12, 22, blows out plug 30 and pressurizes the liquid refrigerant L which is forced out through the tube 38 and passage 40 and acts on a frusto-conical surface 36 of a sleeve 28. The sleeve is forced axially past the retaining fingers (59) Fig. 6 (not shown) of a spring 58 and removes into the position of Fig.3 in which the main portion of the hot gas can pass through port 24 to impinge on the refrigerant liquid emerging from passage 40; the liquid is vaporized and the gases mix in chamber 66 and pass out through passage 72. In another embodiment Fig.4 (not shown) the constituents blow out or rupture discs (106, 112), impinge head-on, and mix in coaxial tubes (116, 118,120) which interdigitate to form a tortuous annular passage.
Patent GB-1522830-A (GB)
Title: Sulphur-containing silane coupling agents
IPC: C07F7/18
Filed: 1975-12-23
Abstract: 1522830 Silylaryl polysulphides UNION CARBIDE CORP 23 Dec 1975 [24 Dec 1974] 52541/75 Headings C3S C3T and C3K Novel silylaryl polysulphides have the average formula [X3-yR<1>ySi-R-Ar]a[Sx]b wherein X is halogen or an alkoxy or acyloxy group, R<1> is a C1-4 alkyl radical, R is a direct bond, a C1-7 alkylene radical or a C1-7 alkyleneoxy radical bonded via O to Ar, Ar is a C6-12 aromatic radical, y is 0-2, x is 2-6, a is at least 2, b is at least 1, the ratio a : being 0À4-2 : 1, each group Sx being attached to aromatic C atoms in 2 Ar radicals. They may be prepared by reaction of a corresponding aryl halosilane with S2Cl2, optionally i.p.o. a Lewis catalyst and/or an inert solvent, and reaction of the halosilane product with an alcohol or acid if required. They may be hydrolysed and condensed, optionally with other silanes, to give polysiloxanes. In Examples 1 and 2 vinyl toluene and styrene are added to HSiCl3 to give In Examples 3-10 and 15-17 these, or C6H5. SiCl3 or CH3 . C6H4. SiCl3 are heated with S2Cl2 in 1 : 0À5, 0À65 or 0À75 molar ratio at 55-95‹C. with or without FeCl3 or TiCl4 catalyst to give bis(trichlorosilylaryl) polysulphides having 2À64-3À63 S atoms per polysulphide group; these are then treated with MeOH or EtOH to give the trialkoxysilyl compounds. In Examples 19 and 20 a 1 : 1 molar ratio of S2Cl2 : silance is used. In Examples 11-14, 18 and 20 1-3À5 p.b.w. of these products are incorporated into a blend of 100 p.b.w. of butadiene-styrene (with 30 p.b.w. of polybutadiene in Example 18), polychloroprene or NBR rubber, 50 or 70 p.b.w. SiO2 or 100 p.b.w. clay, 8-15 p.b.w. process oil, 2 p.b.w. of amine additive, 4-5 p.b.w. ZnO, 0À5-1 p.b.w. stearic acid, 0 or 7 p.b.w. MgO and 0 or 2 p.b.w. polyethylene, which is then cured with 1À5 p.b.w. benzthiazole plus 1À5 p.b.w. ditolylguanidine plus 2À75 p.b.w. S or with 0À5 p.b.w. tetramethylthiourea. In Example 20 the polysulphide is first cured by exposure to moist air. Uses.-Coupling agent for incorporation into rubber compositions or for treating mineral fillers, adhesives, coating materials, lubricants, antioxidants.
Patent GB-1287950-A (GB)
IPC: C07C27/00
Filed: 1969-10-27
Abstract: 1287950 Solid epoxy resins DOW CHEMICAL CO 27 Oct 1969 [25 Oct 1968] 52559/69 Heading C3B [Also in Division C2] Solid epoxy resin is prepared by heating a mixture of a liquid polyepoxide (I), a polyhydric phenol (II) and a poly(1,2-dihydroxyalkyl) compound (III). (III) is employed at 1-20% of the combined weight of I and III. III may be prepared by acid hydrolysis, e.g. with aqueous oxalic acid or malonic acid, of a curable polyepoxide. I may be the diglycidyl ether of bisphenol A. II may be bisphenol A. III may be 2,2-bis-[p-(2,3-dihydroxypropoxy) phenyl]propane obtained by hydrolysis of the diglycidyl ether of bisphenol A. The products are useful in preparing paint vehicles.
Patent GB-1419103-A (GB)
Title: Electrophoretic coating process
IPC: B01D61/42
Filed: 1972-11-14
Abstract: 1419103 Ultrafiltration of electro-phoresis bath DORR-OLIVER Inc 14 Nov 1972 [2 May 1972] 52581/72 Heading C7B An electro-phoretic deposition apparatus comprises a tank 52 divided into first and second compartments by an ultrafiltration membrane, the first compartment containing a polymeric coating material disposed in a liquid medium, and a liquid medium being pumped from the second compartment so that liquid flows from the first to the second compartment through the membrane. The liquid medium may be removed at a rate to provide a flow through the membrane of 5-100 galls/sq ft per day. In Fig. 2 a metal sheet 57 is made the anode in a paint bath 54. Tubular cathode unit 62 is coated with ultrafiltration membrane 63. Liquid is withdrawn from the centre of the tube 62 via pipe 64, holding tank 66 and vacuum pump 68. The tube may be made of porous sintered metal or may comprise a metal grid 93. It may itself form the cathode or have a cathode member 91 disposed within it. A layer of cardboard may be disposed between the membrane and the tube. The membrane may be polycarbonates, polyvinyl chlorides, polyamides, acrylic resins, polystyrene, styrene acrylo nitrile, polysulphones or acetal polymers. The sintered metal tube of the cathode unit may have pore size 20-100. The liquid medium may be water containing detergents, ketones and alcohols. The bath may be agitated by a magnetic stirrer. The deposited polymer may contain a pigment e.g. TiO 2 , carbon black and iron oxide. Reference has been directed by the Comptroller to Specification 1301515.
Patent GB-1138930-A (GB)
Title: Apparatus for safely burning crude oil on a marine tanker
Inventor: MORRELL ROBERT CARTER
IPC: F23D11/28
Filed: 1967-11-20
Abstract: 1,138,930. Disposal of tankers' waste oil. CITIES SERVICE TANKERS CORP. 20 Nov., 1967, No. 52779/67. Heading B7M. [Also in Division A5] The crude oil cargo of a marine tanker can be used as fuel in the power plant with the aid of safety arrangements by which no oil vapour nor drippings makes contact with any source of ignition, viz: (a) conduit 13 pumping oil from tank 1 via engine room 5 to burners of boiler 20 includes a main shut-off valve (18); (b) boiler 20 is enclosed by protective hood (33) vented by duct 37 to atmosphere; (c) conduit 13 is enclosed in a vapour tight duct 41 extending from bulkhead 6 to box 42 under drip pan 139. Cross bunker 11, separated from crude oil tank 1 by coffer dam 12, normally carries bunker oil fuel which may be interchanged with the lower flash-point crude oil supply by means of 3-way valves to the burners. A manual or automatic interlock control between exhaust fan (38) in duct 37 and main shutoff valve (18) permits oil flow in 13 only when fan (38) is operative. Drip pan 139 is protected by flame screen 140.
Patent GB-1514020-A (GB)
Title: Low noise read-type diode
IPC: H01L29/36
Filed: 1976-12-20
Abstract: 1514020 Read diodes RAYTHEON CO 20 Dec 1976 [5 Jan 1976] 53025/76 Heading H1K A Read diode comprises a metal contact forming a Schottky barrier with a semiconductor avalanche region having a dopant concentration of from 5 x 10<15> to 1 x 10<17>/cm<3>, a drift region with a dopant concentration of from 3 x 10<15> to 3 x 10<16>/cm<3> and between the avalanche and drift regions an avalanche termination region with a dopant concentration of from 2 x 10<17>/cm<3> to 5 x 10<17>/cm<3> and of sufficient thickness to reduce the electric field therein in operation below that causing charge carrier multiplication. The structure includes means for so determining the effective injection current from the contact that the ratio between the average dc current and said injection current is less than 100. This can be achieved by introduction trap sites, formed by impurities or by ion bombardment induced lattice defects, into the avalanche region, by interposing a thin layer of the oxide of the semiconductor between it and part or all of the metal contact area, by using a metal contact with a low work function such as tungsten, by operating at a high temperature, and/or by confining avalanching to a narrow layer immediately adjacent the contact. The temperature of operation may be increased for a given current by increasing the length of the buffer region disposed between the drift region and a heat sink or using a less efficient heat sink. In the described embodiment the avalanche, drift and avalanche termination regions are all of N type and the buffer region ofN+ type.
Patent GB-1438370-A (GB)
Title: Isomerisation
IPC: C08F8/00
Filed: 1973-11-15
Abstract: 1438370 Isomerizing butadiene polymers NIPPON OIL CO Ltd 15 Nov 1973 [15 Nov 1972] 53104/73 Heading C3P Lower butadiene polymers and copolymers of butadiene with one or more conjugated dienes and/or vinyl aromatics, said polymers and copolymers being liquid or semi-solid at room temperature and having a M.W. of 300- 10,000, are treated to isomerize non-conjugated double bonds to conjugated double bonds by contact at 0-200‹ C. with a catalyst comprising (1) a dispersion of lithium, sodium or potassium, and (2) a diamine compound having the formula in which n is 2 or 3, and each R is hydrogen or a C 1-20  organic radical (including radicals containing further amine groups) with the proviso that R 1  and R 2  may be bonded together to form a cyclic structure. Suitable diamine compounds include ethylene diamine, diethylene triamine, triethylene tetramine, 1-methyl-propylene-1,3- diamine and piperazine. A solvent may be present, e.g. benzene or toluene. In examples, the polymers treated are 1,2- and 1,4-polybutadienes and high vinyl butadiene/styrene copolymer.
Patent GB-1331073-A (GB)
Title: Injection moulding machine
IPC: B29C45/40
Filed: 1970-11-09
Abstract: 1331073 Injection moulding machines ING C OLIVETTI & C SpA 9 Nov 1970 [14 Nov 1969] 53277/70 Heading B5A Injection moulding apparatus comprises a mould part 20 2  which is movable from an injection station to an ejection station, and the ejection means is arranged to act simultaneously with the injection of thermoplastic resin into the mould 20 2 , 20 1 . As shown, the invention is applied to apparatus for injection moulding keyboard keys of two or more colours and comprising three mould parts 20 2 , 21 2 , 22 2  mountedon a rotatable plate 9. The plate 9 is fixed to a shaft 8 which is movable axially and rotated by means of hydraulic cylinders 12 (Fig. 1) and 13 (Fig. 2), respectively. Cylinder 13 operates a toothed rod portion 13a meshing with a toothed sleeve 14. A clutch 15 between the sleeve 14 and shaft 8 is engaged when the rod 13a is moving to the left in Fig. 2 but disengaged for the return movement of the piston. Alternatively a freewheel mechanism may be employed. Injection is effected through nozzles 30, 31 (Figs. 4, 6) and channels 33. The key ejecting device 22 (Fig. 8) has its plate 22 1  provided with holes 40 connected by channels 42 to suitable containers. Ejector plungers 43 are fast with a plate 44 mounted resiliently with respect to the plate 22 3  by means of springs 45. The plate 44 is guided on posts 46 and controlled by a rod 47 and hydraulic cylinder 48 (Fig. 1) in a movable plate 5. Plate 5 is movable by a toggle 6 and hydraulic cylinder 7. Sprue ejectors 49 (Fig. 4) are operated by fluid pressure chambers 50. Plungers 51 carried by the movable mould plates 20 3 , 213 have undercut end portions which become embedded within the sprues during moulding. The machine can also be used for moulding two-coloured knobs, push-buttons and containers.
Patent GB-1496348-A (GB)
Title: Manufacture of cast metal bodies
IPC: B22D7/10
Filed: 1974-12-10
Abstract: 1496348 Insulating cover for hot tops E VALLAK 10 Dec 1974 [11 Dec 1973 21 May 1974] 53393/74 Heading B3F In casting metal bodies, a heat insulating member comprising at least one layer of ceramic fibre is placed over the top of a mould (Fig. 2, not shown) or a ladle. The heat insulating member may be in the form of a cover comprising an Fe, or Al plate container 3 inside which are a plurality of layers 1 (as shown, three) of compacted or loose ceramic fibres, each layer may be separated by a Al foil 2. Various compositions of ceramic fibres are disclosed including mixtures of some of Fe 2 O 3 , TiO 2 , Al 2 O 3 , SiO 2 , ZrO 2  and Cr 2 O 3 . The container 3 may be adapted at its lower edge so that the molten metal does not contact the cover allowing for re-use of the cover.