baber/WOPTO huggingface dataset:
Patent GB-1486477-A (GB)
Title: Regeneration apparatus with internal regenerated-catalyst recycle means
IPC: B01J8/24
Filed: 1974-12-19
Abstract: 1486477 Catalyst regeneration UOP INC 19 Dec 1974 [28 Dec 1973] 54858/74 Heading B1F In catalytic regeneration apparatus, internal recycle means, e.g. comprising vertically staggered hoppers 36, conduits 37 and dipleg 38 are used to return regenerated catalyst from upper bed 18 to regeneration bed 5, the regenerated catalyst passing as a dilute phase upwardly through chamber 2 where after burning of Co->CO 2  is substantially completed, the catalyst passing via cyclone 20 to bed 18. The amount of discharge through hoppers 36 can be varied by raising or lowering the level of the bed. Specification 1486478 is referred to.
Patent GB-1351668-A (GB)
Title: Apparatus for reducing exhaust back pressure in internal combustion engines
IPC: F02B1/00
Filed: 1971-11-26
Abstract: 1351668 Pumps for assisting scavenging; ejectors CLEVEPAK CORP 26 Nov 1971 [4 Dec 1970] 55089/71 Headings F1B and F1E Apparatus for reducing back pressure in I. C. engine exhaust gas ducting comprises means for producing and supplying a compressed gas through jet bores 17 between a Plenum chamber 15, Fig. 3 and exhaust ducting so that momentum is transferred from the compressed gas to the exhaust gas to accelerate the latter. The angle between the compressed gas jet and the exhaust gas flow is between 10 and 40 degrees, the jet velocity reaches or exceeds sonic velocity and the jet volume is 10% to 50% of the exhaust gas flow-rate to create turbulent vortical mixing of the jet with the exhaust gas flow. An engine-driven compressor 8 supplies compressed air through a valve 9 and check valve 11 to a reservoir 12. When the ignition switch 16 is closed a solenoid valve 13 allows the air to pass to the Plenum chamber 15, Fig. 3 of the ejector 30. The air-flow through angled holes 17, 17' produces a vortex in the duct 18 to accelerate the exhaust gases. Pressure may be recovered in a diffuser 20. The supply to pump 8 may be taken partly from a valve 41 in the exhaust duct 2. The air compressor may be electrically driven or may be replaced by a turbine driven unit and the outlet of the compressor connected directly to chamber 15. The ejector 30 may be located downstream of purifying device 22 or a silencer or alternatively several ejectors may be positioned in the exhaust line. The number and positions of holes 17 may be varied together with the cross-sectional shape of passage 18. The compressed gas may be ammonia.
Patent GB-1291493-A (GB)
Title: Apparatus for depositing a load on the sea bed
Inventor: SERRANO FRANCISCO
IPC: E21B41/04
Filed: 1969-11-13
Abstract: 1291493 Subaqueous structures COMPAGNIE FRANCAISE DES PETROLES SA 13 Nov 1969 [11 Jan 1969] 55667/69 Heading E1H Apparatus for accurately depositing on a subaqueous site an object such as a well-head comprises a tubular hull 10 supported by a cable 4 secured to a hoist on a boat at the surface, releasable hooks 19, 20 to carry the object, a propeller 13 driven by a motor 12, a vertical control-surface 14, stabilizing fins 15.. 18, telemeters 21, 22 aided by an ultrasonic emitter 23 to detect the position of the site, and a chamber 9 for control equipment. The hooks may be movable vertically and horizontally relative to the hull. The apparatus may be controlled either automatically or from the boat through the cable.
Patent GB-1457409-A (GB)
Title: Engine power determination
IPC: G01L23/08
Filed: 1973-12-03
Abstract: 1457409 Measuring engine power electrically CATERPILLAR TRACTOR CO 3 Dec 1973 [7 Dec 1972] 55829/73 Headings G1A and G1N] Piston-engine power indicating apparatus comprises: transducers responsive respectively to compression-chamber pressure and volume, the volume transducer comprising a movable element arranged between a radiation source and a detector; a multiplier; means for integrating the multiplier output; and means for indicating the integrator output. A known pressure transducer 18 facing into a compression chamber 13 provides a signal at a terminal 23. A volume transducer 24 comprises a disc 31 mounted eccentrically on a shaft 27 coupled to the engine crank-shaft 17 so as to obscure during rotation a variable portion of a slotted member 32 mounted between an opal glass diffuser 36 and lenses 37 focused on a photo-diode 38. The diffuser 36 is illuminated by the output 43 of a fibre-optic guide 42 coupled to a lamp 39 remotely mountable for vibration protection. Holes 54, 56 in the disc 31 briefly allow a second lamp 53 to illuminate a second photo-diode 52 to provide synchronizing pulses at top and bottom dead centre. The pressure signal at 23, Fig. 3 is processed in a first channel 59 providing adjustable phase correction 62, filtering 68 to remove high frequencies above the power-cycle frequency, and adjustable amplification 76. The volume signal at 48 passes through a second channel 61, where it is filtered 88, adjustably amplified 94 and differentiated 79 to convert it to a rate-of-change signal. The outputs - of channels 59 and 61, processed in an analogue multiplier 58, provide an output signal 97 representing instantaneous indicated power for display as an indicator diagram on a CRO 107. The signal 97, after averaging in an integrator 102, can further provide information for display as mean indicated power or Indicated Mean Effective Pressure by a digital voltmeter 57. Gating and calibration circuits 113 are provided for selection of the working or pumping cycle for individual display (in four-stroke I.C. engines) and for supplying reference voltages for calibrating the voltmeter 57.
Patent GB-1260592-A (GB)
Title: Improvements in or relating to railway systems and rail vehicles therefor
Inventor: CHERTO EUSEBIO CORTES
IPC: B61C13/04
Filed: 1969-11-17
Abstract: 1,260,592. Railway systems. E. C. CHERTO. 17 Nov., 1969 [15 Nov., 1968], No. 56204/69. Heading B7L.  A railway system includes a pair of horizontally spaced rails 4 suspended above the ground by means of columns 9 having ground-engaging bases 8, a rail vehicle having upper and lower cabins 20 and 22 respectively, connected by a stairway 23, frusto-conical drive wheels 3 supporting the vehicle on the rails 4, at least a major portion of the cabin 20 being above the rails 4 and at least a major portion of the lower cabin 22 below the rails 4 and a motor 1 connected to drive axle 7 of the drive wheels 3 so as to drive the wheels 3 and housed on the level of the cabin 20. The motor 1 may be a D.C. electric motor fed from a two-phase electrical supply after rectification via a pantograph-like structure mounted above the vehicle and in sliding electrical contact with overhead supply lines 18. The rails 4 are reinforced by H-section girders 15 and are attached to horizontal arms 13 supported in the vertical columns 9, the outer ends of the arms 13 being connected to the base parts 8 by means of tie rods 11. Double L-section beams 14 are imbedded in the columns 9 and support the overhead supply lines 18 via support beams 16 having flanges 17. The support beams 16 are connected at their upper ends by a horizontal cross member having on its lower surface an insulator of a ceramic or plastics material 19 for supporting the supply lines 18.
Patent GB-1336745-A (GB)
Title: Method of analysis employing holography
IPC: G01N30/86
Filed: 1970-11-30
Abstract: 1336745 Holography; spatial filtering NIHON DENSHI KK 30 Nov 1970 [28 Nov 1969 (2)] 56904/70 Heading G2J The properties of an unknown sample are analysed by testing the sample in an analytical instrument such as a mass spectrometer, liquid chromatograph, optical spectrometer or, as shown, a nuclear magnetic resonance apparatus to produce an electric signal at circuit 5 which is detected at 6 and used to produce a pattern of light and shade on a film 13. This is then used to form a hologram and by passing coherent light through such hologram and through a standard hologram formed by using a reference material immediate indication is given as to the presence in the unknown sample of the reference material. The pattern of light and shade may be formed by electrically modulating an electron beam in unit 7 or by using an electro-optic modulator Fig. 6 (not shown).
Patent GB-1249336-A (GB)
Title: A method of producing coated particles
Inventor: KOSS PETER
IPC: G21C3/62
Filed: 1968-12-02
Abstract: 1,249,336. Nuclear fuel. OSTERREICH. ISCHE STUDIENGESELLSCHAFT FUR ATOMENERGIE G.m.b.H. 2 Dec., 1968 [7 Dec., 1967], No. 57163/68. Heading G6C. [Also in Division C7] Coated uranium, plutonium, or thorium oxide nuclear fuel particles are produced by spraying a mixture of a solution of a compound of the metal and a polymerizable organic substance to form particles, carbonizing the organic substance and transforming the metal compound in the presence of a protective gas into the form of oxide dispersed in a carbon matrix, and forming a gas-tight coating on the resultant particles. An aqueous solution containing uranium nitrate, a phenol or amine, and an aldehyde may be sprayed into an oil bath to form small particles which are heated as a fluidized bed at 1200 C. in the presence of argon or CO. When argon is used, the particles are coated with carbon by decomposition of methane firstly at 1200- 1400 C. and then at 2200-2700 C. When CO is used as the protective gas, the lower temperature coating may be omitted. The particles can withstand temperatures up to 2800 C. or higher without migration of nuclear fuel into the coating. Reference is also made to the preparation of particles of high melting point oxides of rare earth and other elements. Coatings of silicon carbide, zirconium carbide and tantalum carbide may be applied instead of carbon coatings. Reference has been directed by the Comptroller to Specification 1,146,015.
Patent GB-1133804-A (GB)
Title: Frame members adapted to secure sinuous springs
IPC: A47C7/30
Filed: 1966-12-21
Abstract: 1,133,804. Spring upholstery. NOBUYOSHI SAITO and K. FUJIKAWA. 21 Dec, 1966, No. 57311/66. Heading A4M. A hollow, rolled sheet, seat frame member 4 is formed with a longitudinal, hollow ridge 3 with a pair of spaced openings 5 with edges formed with shoulders 6 limiting lateral displacement of the end of a sinuous spring 2 engaged through the openings 5 and beneath a bridge 7 defined in the ridge between the openings 5. The spring end bears on the underside of the bridge 7 and on the edges of the openings 5 adjacent the shoulders 6 to prevent rotation of the spring under load. In a modification (Fig 2), one lower end of the bridge (7<SP>1</SP>) is cut away to form a gap (8) through which the spring end is inserted, the gap (8) being subsequently closed. In another embodiment (Fig. 3), the bent free end (a 2 ) of the spring (2<SP>1</SP>) is engaged in one of a pair of keyhole slots (9) formed in the ridge 3 opposite the shoulders 6. In a further embodiment (Fig. 4) the frame 4 has a flange (10) defining a channel in which the ends of sinuous, seat-back springs (211 or 2<SP>111</SP>) are engaged and secured.
Patent GB-1452142-A (GB)
Title: Overfilling protection device for tanks storing a liquid product
IPC: F16K21/18
Filed: 1973-12-12
Abstract: 1452142 Valves M J P GODEUX 12 Dec 1973 [15 Dec 1972] 57622/73 Heading F2V A pivoted obturator 17 in the filler pipe 2 of a liquid storage tank is coupled by a flexible cable 13 to a float 8 in the tank so that when liquid in the tank reaches a predetermined level, the obturater 17 is released for movement by the liquid passing through the pipe 2 into an obturating position. As shown, the cable 13 is connected to the float by a link 10 and the arrangement acts as a toggle so as to release the obturator as soon as the float passes a certain position. In a modification, Fig. 3 (not shown), the float is pivoted to a link (37) in turn pivoted to a fixed support, and the cable is connected via a link (40) to the intermediate pivot (6) and passes between guides (41, 42).
Patent GB-1337994-A (GB)
Title: Can bodies and method and apparatus for manufacturing thereof
IPC: B21D22/10
Filed: 1970-12-04
Abstract: 1337994 Making cans D E SUMMER L K ROCKWELL P C ROGERS N A LAZNIBAT C A GUNSALUS W H BRAWNER G R KIMMICH L J PLOURDE M W McGUIRE and G F SMYTH 4 Dec 1970 [11 Dec 1969] 57818/70 Headings B3Q and B3A [Also in Division B8] A hollow body is formed with a flange and a neck at one or both ends by expanding the body and forming the flange(s) while restraining movement of that part(s) which is to provide the neck(s). A number of cans may be formed sequentially or simultaneously in a multistation machine having upper and lower stationary cam drums 13, 15, Fig. 1, for raising a can support 21 to position a can in an open divided die 23 and lowering a panel into the can. An elastomeric sleeve 39 on the punch expands the can between restraining sections 43, 45 in the die and also flanges the ends of the can. A groove 51 in the sleeve 39 prevents the sleeve getting between the can and die. A star-wheel may feed cans to the machine and an arrangement may be used in which the punch is not reciprocated. The punch may be lubricated before insertion in the can. In another form, Fig. 2, the elastomeric sleeve is frusto-conical so that the can is expanded progressively and may be slightly lengthened by the upward progression. A further form, Fig. 4, uses a flexible bag 269 into which air or water is fed to inflate the can. The bag-carrier 267 may be reciprocated to increase inflation pressure. Steel, tin plate or aluminium cans may be formed of a variety of shapes, Figs. 8-12 (not shown), the expansion operation being effective to test seam strength.
Patent GB-1354033-A (GB)
Title: Tungsten-based alloy suitable for halogenation
IPC: C22C27/04
Filed: 1971-12-16
Abstract: 1354033 Tungsten-base alloys REDERI AB NORDSTJERNAN 16 Dec 1971 [18 Dec 1970 18 Nov 1971] 58508/71 Heading C7A A tungsten-base alloy, suitable as starting material for the production of tungsten by halogenation and subsequent reduction, contains silicon and/or aluminium and iron, cobalt, nickel and/or manganese together with impurities and other substances not affecting halogenation, the composition of the alloy falling within the polygon ABCDEA on the ternary composition diagram shown. The minima and maxima are, for silicon and/or aluminium 1% and 33%, for iron, cobalt, nickel and/or manganese 2% and 25%, and for tungsten 65% and 92%, all in percentages by weight. Up to 10% of the tungsten content can be replaced by molybdenum. Particularly preferred are those compositions falling within polygon BCFGB. Tungsten may be produced from this alloy by the process disclosed in Specification 1263283.
Patent GB-1321549-A (GB)
Title: Phenolic compounds
IPC: B27K3/42
Filed: 1971-12-22
Abstract: 1321549 Nitrophenols PROGIL 22 Dec 1971 [15 Jan 1971] 59674/71 Heading C2C The invention comprises 2,4-dichloro-3-methoxy-6-nitro-phenol and 2,6-dichloro-3- methoxy-4-nitro-phenol. The compounds are prepared by reacting 1-nitro-2,3,4,5-tetrachlorobenzene with an aqueous solution of an alkali metal hydroxide in the presence of methanol and then treating the resulting solid product with a strong inorganic acid. The compounds have anti-parasitic activity.
Patent GB-1242308-A (GB)
Title: Stable aromatic mineral oil
Inventor: IDAS ALFRED
IPC: C10G67/14
Filed: 1969-12-08
Abstract: 1,242,308. Hydrorefining; solvent extraction. ESSO RESEARCH & ENG. CO. 8 Dec., 1969 [20 Dec., 1968], No. 59736/69. Heading C5E. Lubricating oil stocks are catalytically hydrotreated and then extracted with liquid sulphur dioxide, furfural or phenol; the extract of increased aromaticity is refined by either catalytic hydrotreating or by treating with sulphuric acid followed by neutralizing with lime and then by contacting with fuller's earth. Both hydrotreating stages , are performed at 200- 400‹ C. and 20-80 atmospheres gauge using a catalyst containing Co and Mo, V, Cr, Mn, Fe, Co, Ni, Mo or Sn supported on alumina, magnesia, silica, zirconia or spinel. In examples lube oil stocks boiling from 280-370‹ C. and from 320-410‹ C. are treated.
Patent GB-1293579-A (GB)
Title: Improvements in or relating to high voltage generators
Inventor: SCHRADER WERNER
IPC: H01F38/18
Filed: 1969-12-08
Abstract: 1293579 Transformer arrangements TRANSFORMATOREN-UND RONTGENWERK DRESDEN VEB 8 Dec 1969 59832/69 Heading H2H  A high voltage generator comprises one or more transformers and a plurality of excitation voltage generators which are simultaneously switchable into connection with at least two low voltage windings of the transformer or transformer, the arrangement being such that the low voltage windings have potentials differing from one another. With a single transformer as shown in Fig. 1 two excitation voltage generators 8, 9 are connectable to low voltage windings 7, 2 respectively of the transformer 1, the high voltage output being obtained from a winding 4. With a plurality of transformers as shown in Fig. 2, the transformers 1 are connected in cascade, the excitation voltage generators 8, 9 being connectable to low voltage windings 3, 5 on each of the transformers, which windings are connected in parallel. The cascade connections between the transformers is arranged by the interconnection of the low voltage winndings 2, 7. The excitation voltage generators 8, 9 are under the control of a single device 10.
Patent GB-1317927-A (GB)
Title: Catalytic cracking of hydrocarbons
IPC: C10G11/18
Filed: 1970-12-21
Abstract: 1317927 Cracking TEXACO DEVELOPMENT CORP 21 Dec 1970 [31 Dec 1969] 60598/70 Heading C5E Two virgin gas oils are cracked with a zeolite catalyst in a fluid-catalytic-cracking unit comprising a reactor-separator, a regenerator and two elongated reaction zones wherein said reactor-separator contains a dense phase and a dilute phase of said catalyst and said elongated reaction zones terminate at said reactor and wherein a mixture of a gas oil and said catalyst is passed through each elongated reaction zone under catalytic cracking conditions to said reactor-separator and comprising: (a) passing through the first elongated reaction zone a virgin gas oil having a boiling range between 500‹ and 1050‹ F.; (b) passing through the second elongated reaction zone a virgin gas oil having a boiling range between 430‹ and 750‹ F., said gas oil of step (a) having a higher boiling range than the gas oil of step (b); and (c) discharging the effluent from said elongated reaction zones into a catalyst phase in said reactor-separator, said effluent comprising vaporous reaction mixture and catalyst, the conversion of the higher-boiling gas oil being the same as or not more than 30 volume per cent lower than that of the lower-boiling gas oil.
Patent GB-1294110-A (GB)
Title: Improvements in control circuits for electric motors
IPC: H02P6/08
Filed: 1969-12-30
Abstract: 1294110 Automatic current control JEUMONT SCHNEIDER 30 Dec 1969 [31 Dec 1968] 63301/69 Heading G3R [Also in Division H2] An A.C. motor has three sets of overlapping or juxtaposed armature coils associated with an inductance to maintain the armature current substantially constant, switching thyristors and freewheel thyristors being connected to the armature coils to control the current supply thereto and freewheel and braking operations of the motor. Coil Ba of motor M is supplied from a D.C. source through thyristor Ta until the current reaches a desired value, whereupon a detector G responds to fire a pair of thyristors #d and ta. The detector G also responds to a detector P associated with the electrical position of the moving part of the motor, so that the application of voltage to a coil or to a set of coils succeeds the removal of voltage from a preceding coil or set of coils. Capacitor C is discharged to switch off the thyristor Ta. Current in the coil Ba now continues through inductance S and freewheel circuit K until the current falls slightly below the desired value. The detector G responds either to re-fire the thyristor Ta for currentchopping operation or to fire the thyristor Tb or Tc for commutating the windings, the thyristor to being switched off. Constant current operation is obtained by variation of the mark-space ratio of the supply to the armature coils. The system may be modified so that a rheostatic braking circuit is formed through a diode Df and resistor Rf when thyristor ta is conductive. The system is adapted for regeneration through a diode Dr. Simultaneous regenerative and rheostatic braking may be provided. In another arrangement the motor is supplied from a three-phase source having four lines, Fig. 8 (not shown). Alternatively, the motor is supplied from a D.C. source and is associated with two freewheel circuits each including a capacitor which is chargeable to more that the supply voltage. The inductance has two windings. The motor has a homopolar field, the armature being associated with two sets of switching and freewheel thyristors, Fig. 9 (not shown). The inductance may comprise as many windings as there are sets of armature windings, Fig.10 (not shown). In a further embodiment, the motor is supplied from a D.C. source, has a heteropolar field and an armature with three sets of divided coils, the windings forming one set being located in a common slot and being oppositely disposed. The armature windings are energised in pairs and are changedover in succession to provide stepping operation, Fig.11 (not shown). The motor may be of the synchronous or asynchronous types and adapted for linear or rotary operation. The armature may be fixed or moveable. The thyristors may be replaced or augmented by switching transistors.
Patent GB-689188-A (GB)
Abstract: 689,188. Thermal switches. SPERRYN & CO., Ltd., NORWOOD, H., and WAIGHT, J. F. April 2, 1951 [April 1, 1950], No. 8230/50. Class 38 (v) [Also in Group XI] Safety control means for a number of spaced gas burners 10, 11, 12, Fig. 1, each having a pilot igniting jet 13, 14, 15, comprises a common electromagnetic valve 18 controlling the gas supply to the burners and jets and normally held open by current from a source controlled by one of the pilot jets, e.g. a thermo-couple 20 heated by the pilot jet 13, whilst the other pilot jets heat thermal expansion elements 24 actuating switches, or heat thermocouples (not shown) energizing electromagnetic switches, in circuit with the operating coil of the valve 18 so that the latter is closed to cut off the gas supply to all the pilot jets and burners in the event of failure of the flame at any of the pilot jets. The switches actuated by the elements 24 are each housed in a Tee-union 23, the elements 24 being of the rod and tube type, the tube being secured in the stem 26, Fig. 2, of the union 23 and the rod having screwed therein an extension 28 which enters the body of the union. The extension 28 has a collar 36 which, when the element 24 is cold bears against an insulating bush 35 to hold a contact bridge piece 34 out of engagement with conducting inserts 32, thus breaking the circuit. The circuit leads are formed by the lengths of copper or brass tubes 21 containing insulated stout wire 22 having terminal nipples 31 which are engaged in seatings in the inserts 32, and may also be utilized for joining lengths of lead. When the element 24 is heated by a pilot flame the collar 36 is moved away from the bush 35 to allow a spring 38 to move the contact 34 into engagement with the inserts 32 to close the switch. The setting of the switch may be adjusted by screwing the extension 28 into or out of the rod of the thermal element 24, the extension 28 being provided with a screw driver slot 40. In an alternative embodiment the operating coil of the electromagnetic valve is energized from an external source, the thermo couple being replaced by a further thermally actuated switch, and all the thermally actuated switches being in series with the current source and the operating coil.