baber/WOPTO huggingface dataset:
Patent GB-1366096-A (GB)
Title: Process and apparatus for catalytic cracking
IPC: B01J8/24
Filed: 1971-09-10
Abstract: 1366096 Catalytic fluidized bed UNIVERSAL OIL PRODUCTS CO 10 Sept 1971 42306/71 Heading B1F [Also in Division C5] Two streams of hydrocarbon are cracked simultaneously in an apparatus which comprises a vertically disposed dense-bed cracking vessel (2) containing a fluidized bed (10) of catalyst particles, and inlet (3) to the lower part of the vessel for the first stream, a particle-separator (7) in the upper part of the vessel, with an inlet (8) communicating with the interior of the vessel, means for returning separated catalyst to the fluidized bed, and an outlet (5) for the separated cracked hydrocarbon, a riser (12) with an inlet (not shown) for the second hydrocarbon stream and catalyst particles, and an outlet connected with the vessel (2) at a point above the separator (7), a second separator (6) connected with the outlet of the riser, means for discharging separated catalyst to the fluidized bed and an outlet (9) for cracked gases to the interior of the vessel (2), and an outlet (4) for deactivated catalyst from the apparatus. The cracked hydrocarbons from the separator 6 pass to the inlet of separator 7 without undergoing significant further cracking. The two streams are thus subjected to cracking of different intensities, and the cracked products from both recovered together. Each of separators 6 and 7 may be (as shown) a single cyclone or two cyclones in parallel or in series.
Patent GB-1156682-A (GB)
Title: Flame Cutting Machine Ventilation System
IPC: B23K7/10
Filed: 1966-09-26
Abstract: 1,156,682. Cutting by fusion. MESSER GREISHEIM G.m.b.H. 26 Sept., 1966 [24 Sept., 1965 (2)], No. 42844/66. Heading B3V. A cross-carriage type flame-cutting machine has its lower carriage cooled by a ventilation system operated by a blower and including a closed air circuit with a cooler. The carriage comprises a hollow box member 53 supported on end pillars 2, 3 running along rails. The box member is substantially air-tight and is divided by apertured partitions into compartments 24, 25, 26, 27 of which only the end compartment 27 communicates with the atmosphere through openings 28. Compartment 27 houses a cooler 35 with a radial blower 38 which delivers the cooled air to a longitudinal duct 29 opening into compartment 24. The pressurized air circulates through the apertured partitions into compartments 25, 26 from which it is drawn into the blower 38 through suction aperture 39. A secondary blower in the cooler circulates cooling air 42 drawn from the compartment 27. The blower 38 is controlled by a thermostat 41. Drawers 56, 57, 58 with open battens and sealing strips 50 around their front surfaces, are disposed in the compartments 24- 26 respectively. These drawers contain electrical control equipment for the machine, which may include follow-up or programme control mechanism.
Patent GB-1156683-A (GB)
Title: Vertically Adjustable Cutting Torch Holder for Flame Cutting Machines
IPC: B23K7/10
Filed: 1966-09-26
Abstract: 1,156,683. Cutting by fusion. MESSER GRIESHEIM G.m.b.H. 26 Sept., 1966 [24 Sept., 1965], No. 42845/66. Heading B3V. A flame-cutting machine has its cutting torch 18 mounted on one end of a rod 2 slidable vertically in a substantially dust free housing 1 and sealed thereto by a telescopic spring 8. The rod 2 passes completely through the housing and its upper end is also sealed by another telescopic spring 7. The springs carry sealing rings such as 9, 10, 14. A carrier 13 for hoses 16 is secured to the rod 2, The latter is guided vertically by two pairs of ball segments (32-35) Fig. 2 (not shown) engaging in opposite grooves (30), (31) in the rod 2, Fig. 4 (not shown). Each segment consists of a closed loop of balls (43) enclosed in a cover (46) which also engages within the respective groove (30), (31). Vertical movement of the rod 2 is effected by an electric motor 50 through gearing 51 and rack teeth 53 on the rod. Cams 56, 57 co-operate with switches 60, 61 to limit the vertical movement.
Patent GB-1271041-A (GB)
Title: Improvements in and relating to the manufacturing of polycaproamide
Inventor: SMITH GORDON ERNEST
IPC: C07D201/12
Filed: 1968-09-10
Abstract: 1,271,041. Caprolactam. COURTAULDS Ltd. 9 Sept., 1969 [10 Sept., 1968], No. 42931/68. Heading C2C. #-Caprolactam is recovered from wash liquor from the water-washing of polycapro-amide extrudates by catalytically hydrogenating the wash liquor to decolorize volatile impurities and distilling first the water and then monomeric caprolactam from the liquor. The distillation residue may be heated with acid to depolymerize oligomeric polycaproamide, followed by distillation to separate caprolactam.
Patent GB-1101339-A (GB)
Title: Improvements relating to thyristors
Inventor: MILLAR RICHARD ASWORTH
IPC: H02P9/30
Filed: 1965-10-11
Abstract: 1,101,339. Rectifying. BRUSH ELECTRICAL ENGINEERING CO. Ltd. 22 Sept., 1966 [11 Oct., 1965], No. 43095/65. Heading H2F. [Also in Divisions G3 and H3] A circuit for controlling the D.C. current through an inductive load L comprises an A.C. source 10 feeding the series connection of a diode D1 and load L, and a second source 12 in series with a thyristor T connected across load L. The period of A.C. source 10 is small compared with the time constant of inductor L so that a mean D.C. flows through the inductor. When, in each cycle, the A.C. voltage falls below the voltage of the D.C. source 12, thyristor T becomes forward biased and may be triggered into conduction by control circuit 14, thus supplementing the D.C. current in load L to an extent depending upon the instant of triggering thyristor T. When A.C. voltage 10 rises above the voltage of source 12 thy. ristor T becomes reverse biased and extinguishes. Source 12 may be of A.C., synchronous but anti-phase with source 10, as depicted in Fig. 7 (not shown), where sources 10 and 12 are replaced by the secondary windings of a transformer.
Patent GB-1016620-A (GB)
Title: Improvements in and relating to a drip-feed nozzle
IPC: B65B39/00
Filed: 1964-10-22
Abstract: 1,016,620. Nozzles. KOOPERATIVA FORBUNDET EKONOMISK FORENING. Oct. 22, 1964 [Oct. 23, 1963], No. 43114/64. Heading B2F. A drip-feed nozzle for dispensing a viscous liquid comprises a tube 1, a ring 2 screwed on to the tube 1 and provided with a central flange 3 which together with the inside wall of the tube defines an annular groove 4, and a member 6 located within the tube so as to define a liquid inlet passage 7 and provide a flange 5 which depends into the groove 4. The lower surface of the member 6 is shaped to provide a hollow conical surface or a projecting conical surface, Fig. 2 (not shown). In the embodiment of Fig. 4 (not shown), the outlet opening is elongated and formed in the curved wall of a tube. An upstanding wall in the tube is bent over an upright flange 3 at its upper end to form a guide surface and the depending flange.
Patent GB-1354505-A (GB)
Title: Method of and apparatus for cutting a blanket of confectionery  product
IPC: A23G7/00
Filed: 1970-09-09
Abstract: 1354505 Ultra-sonic cutter for confectionery CADBURY Ltd 7 Sept 1971 [9 Sept 1970 7 Nov 1970] 43118/70 and 53086/70 Heading B5A A blanket of confectionery, e.g. a tacky chocolate filling, is cut into strips, pieces or shapes by ultrasonically vibrated knives by conveying the blanket 13 under a bridge piece 14 on which is mounted a velocity transformer 15 actuated by ultrasonic transducers 16 and carrying one or more knives 17 which project downwardly into close proximity with the conveyer. The conveyer may include a drum 12 which may be perforated and have suction applied to keep the blanket close to the drum surface which may be covered with plastics material. Rollers 21, 22 and a spring strip 23 may provide positive pressure, and for slicing into strips the knives are positioned at an angle to the vertical centre line as shown and given a negative rake to avoid lifting the material as they cut. In an alternative arrangement (Fig. 2, not shown) the drum is replaced by a flat conveyer belt and the knives are raked by tilting the bridge piece 14. The ultrasonic vibrator is clamped to the bridge piece by quick-release clamps 20 to facilitate removal of the knives for cleaning. Shaped pieces may be cut out using shaped hollow knives and moving the bridge piece along with the material during descent of the knives and cutting, and then lifting the knives and returning the bridge piece to the initial position, cut pieces being ejected by compressed air. Transverse cuts may be effected by a similar arrangement, but no constructional details of these arrangements are disclosed.
Patent GB-1204874-A (GB)
Title: Compressed fluid operated control valve actuators
Inventor: MARTIN ERNEST NORMAN
IPC: F15B21/00
Filed: 1967-09-22
Abstract: 1,204,874. Fluid-pressure servomotor systems. IMPERIAL CHEMICAL INDUSTRIES Ltd. Sept.17, 1968 [Sept. 22, 1967], No.43186/67. Heading G3P. [Also in Divisions F1 and F2], Pistons 4, 5 Fig.1 of a compressed air operated actuator suitable for controlling the outlet valve of a water tank having a constant supply are connected together by a rod 6 passing through a gland 7 in a fixed partition 3 which divides the cylinder into two piston chambers, and supply and exhaust ports 8, 9 in the cylinder wall are located between the partition 3 and the pistons 4, 5 and are connected to ports 32, 33 Fig.3 of an adjacent double-acting pilot valve. The latter comprises spools 34, 35 on a rod 36 which is held in the position so as to close ports 32, 33 from exhaust and from a high-pressure supply port 31 by a spring 39 acting on one side of a diagram 37 and balanced by air-pressure on the other side. The air-pressure is controlled by a liquid level responsive member so that when the level falls below a desired value the air-pressure is increased and overcomes spring 39 to move rod 36 to the left thereby admitting air-pressure to piston 4 whilst venting piston 5 which results in leftword movement of actuator rod 6 and consequent reduction of flow through the tank valve. Conversely, when the fluid level rises above the desired value, the air-pressure on diaphram 37 fall below the pressure exerted by spring 39 which thus moves rod 36 to the right thereby connecting ports 31, 33 and moving the actuator rod to the right to increase flow through the outlet valve. In a modification the pistons of the actuator are of the diaphragm type.
Patent GB-1362378-A (GB)
Title: Circuits for forming the mean value of several input voltages
IPC: G06G7/14
Filed: 1971-09-16
Abstract: 1362378 Determining mean values BODENSEEWERK GERATETECHNIK GmbH 16 Sept 1971 [18 Sept 1970 10 Nov 1970] 43229/71 Addition to 1325027 Heading G4G A circuit arrangement for forming the mean value of n input voltages at a common output and for limiting the deviation of the output in response to deviations in any of the inputs comprises n two-terminal circuits through which the inputs are connected to the output and a succeeding stage connected to the output and which can receive a maximum tolerable deviation #V therefrom, each two-terminal being voltage dependent and having a voltageresistance characteristic with a discontinuity at U 0  above which the resistance increases with voltage, the voltage U 0  being and each two-terminal circuit having a finite resistance R below U 0  given by where I 0  is the maximum output current required from the two-terminal circuit. The twoterminal circuits and their interconnections are as disclosed in Specification 1,325,027.
Patent GB-1269187-A (GB)
Title: High-stability low-current generator
Inventor: DALMAZZONE JEAN
IPC: G01R1/28
Filed: 1970-09-10
Abstract: 1,269,187. Utilizing energy of radiations. COMMISSARIAT A L'ENERGIE ATOMIQUE. 10 Sept., 1970 [11 Sept., 1969], No. 43417/70. Heading G6P. [Also in Division H1] In a low-current (10<SP>-9</SP> amp or less) generator comprising an ionization chamber 10 having a first electrode 18 containing a radio-active source 20, and a collector electrode 16, the latter is divided into a number of fractions 16a, 16b, 16c insulated from one another and disposed along a surface approaching the shape of a part-spherical member centred on the radioactive source and the first electrode, a highinsulation selector 28 providing a connection between one or more fractions of the collector electrode and a current output 30, and a source 24 adapted to produce a p.d. between the first electrode 18 and the fraction or fractions of the collector electrode connected to the output. The chamber 10 is bounded by a cylindrical conductive casing filled with air. The radio-active material may be Am 241 with a protective coating film of alloy or gold contained in a stainless steel can. A practical construction of the chamber 10 is described (Fig. 2, not shown). In alternative embodiments (Figs. 3 to 6, not shown) the radioactive material is supported on a conical support having an apex angle of 60-90 degrees to produce more effective irradiation of the gas volume associated with the outer-periphery of collector electrode fraction 16c. A cylindrical or frusto-conical collimator is secured to the apex of the cone to reduce the irradiation of the gas volume associated with the central fraction 16a.
Patent GB-964734-A (GB)
Title: Method and apparatus for de-gassing molten metal
IPC: F27B5/04
Filed: 1960-12-19
Abstract: A stream of molten metal is degassed by exposing it to vacuum conditions in consecutive degassing chambers, using preferably from five to eight, wherein the pressures decrease in the direction of flow, the pressure in the first chamber being such as to cause the stream to diverge to a diameter, e.g. 500 mm., adequate for degassing prior to it being conducted in free fall through at least one further degassing chamber before being intercepted in a collecting vessel. An example, Fig. 1, illustrates five consecutive degassing chambers 14 to 18 separated by partitions 10 to 13 each having an orifice 19 to 22, the last chamber containing a collecting vessel 23, and the first, wherein the highest pressure obtains e.g. 30 torrs, having <PICT:0964734/C6-C7/1> sealingly mounted above it a storage vessel 3. The sizes of the orifices, preferably cylindrical with sharp edges, and the suctions of the vacuum pumps 25, 27, 29, 32, 33 are such as to produce a throttling effect between the falling molten stream and the orifices to maintain the required pressure drop from one chamber to the next.  The partitions are preferably cooled by coils 34.
Patent GB-1101653-A (GB)
Title: Superconductive coils
Inventor: KAFKA WILHELM
IPC: H01F6/02
Filed: 1965-02-01
Abstract: 1,101,653. Superconductor devices. SIEMENS - SCHUCKERTWERKE A.G. 1 Feb., 1965, No. 44061/67. Divided out of 1,101,652. Heading HIK. A superconductive coil has resistive material connecting adjacent turns of the coil, the resistance being high enough to obtain current build up within a reasonably short time but low enough to provide a path of lower resistance than the wire of the turns so that transition from superconductive to normal state occurs rapidly throughout the coil without the occurrence of local hot spots. Fig. 2 shows bare superconductive wires 4 in a resistance paste 7 of colloidally distributed carbon, silver or other metal. Copper foils 6 between the layers provide heat-conducting paths; these may be short-circuited and the foils may comprise slots to reduce eddy currents. The foils may be connected to the resistance paste 7. The superconductor may consist of niobium-tin or niobium-zirconium and the bridging resistance, of conductive varnish, or impregnated glass wool fibres. Modifications include an arrangement in which a plurality of short coils are provided in parallel on the same former and arrangements in which ribbon superconductors are wound flat in a special double helical form and also, in another embodiment, edgewise. Auxiliary shunt resistors may be provided to supplement the effect of the resistive bridging material; the bridging may occur at spaced points or continuously along the superconductor. The superconductor may additionally be coated with silver, copper or gold to prevent oxidation or nitridation which would interfere with the effect of the resistance bridging. The assembly may comprise cavities containing evaporable liquids such as nitrogen or water, to increase the thermal mass.
Patent GB-1169531-A (GB)
Title: Improvements in or relating to Apparatus adapted for use in Moulding Shoe Bottom Units onto Lasted Shoe Upper Assemblies
Inventor: TAYLOR JOHN JALLAND
IPC: B29D35/00
Filed: 1965-10-20
Abstract: 1,169,531. Making moulds. BRITISH UNITED SHOE MACHINERY CO. Ltd. 19 Oct., 1966 [20 Oct., 1965], No. 44360/65. Heading B3A. [Also in Division B5] A sole mould assembly for the moulding of a shoe bottom unit (see Division B4-B5) is made from a single block 130 of metal alloy cast in a sand mould prepared from an accurately finished aluminium master casting. The block 130 is cast with a recess 150, defining the shoe bottom unit moulding cavity, and a surface 132 configured to the heightwise contour of the welt of a shoe. After machining the plane surfaces of the block 130 and polishing the surface 132 and recess 4, two bores (146, 148), Fig. 4 (not shown), and four bores 144 are drilled. The block 130 is then cut, in two operations, transversely to the surface 132 into three parts comprising a sole mould member having an upstanding peripheral wall 16 therearound, and two side mould members to which welt plates are screwed which, in the use of the mould, slidingly engage over the upper surface of the wall 16 to abut against a shoe upper. The bore 146 provides location for mould side member bores 46, 48 in the former 46 whereon a cylindrical rod is secured to enter the latter bore 48 and serve to align the side mould members as they close around the sole mould member. Bore 148 provides for similarly functioning bores 46a and 48a. Part cylindrical recesses 23 and 124 are respectively formed in the sole and side mould members from bores 144 by the cutting operations. Cylindrical members are secured within the recesses 124 in each side mould member and ensure alignment thereof with the sole mould member by engaging in the recesses 23 as the side mould members close around the sole mould member.
Patent GB-1222365-A (GB)
Title: Improvements in or relating to fire fighting equipment
Inventor: CLEMENTS MICHAEL JOHN
IPC: A62C13/78
Filed: 1967-09-30
Abstract: 1,222,365. Containers for fire extinguishers. JOHN KERR & CO. (MANCHESTER) Ltd. 28 Oct., 1968 [30 Sept., 1967], No. 44608/67. Heading A5A. [Also in Division A4] A fire extinguisher or a fire hose and reel is supported within a box-like container having a removable cover which is securable to the container by co-operable snap connectors on the container and cover. Preferably a ridge on the cover engages with a lip on the container. The container and cover may be of synthetic resin, the cover transparent. The container may be seculed to a wall or other support by means of a bracket which has a hook for seating the fire extinguisher and a number of points for receiving a movable hook member (see Specification 1,222,366).
Patent GB-1208574-A (GB)
Title: Methods of manufacturing semiconductor devices
IPC: H01L29/78
Filed: 1967-10-02
Abstract: 1,208,574. Semi-conductor devices. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 2 Oct., 1967 [5 Oct., 1966], No. 44763/67. Heading H1K. A method of manufacturing a semi-conductor device having a substantially flat silicon oxide surface layer comprises subjecting a semiconductor silicon body 3 to an oxidizing treatment whilst a selected portion of its surface is masked against oxidation by means of a masking layer 5 and causing an oxide 6 of silicon to grow into the silicon at the unmasked portions until the grown oxide forms a layer which is sunk over at least part of its thickness in the body, and thereafter removing at least part of the masking layer 5 to expose portions of the silicon body beneath. Circuit elements are formed in these exposed portions of the body, and contact electrodes are applied, for example, by deposition of aluminium from a vapour stage. Contact areas (86-89, Fig. 10, not shown) are provided for connecting conductors, and the silicon oxide layers beneath these contact areas are thicker than elsewhere to give higher strength and reduce capacitance effects. The surface masking during the formation of the silicon oxide layer is provided by a layer of silicon nitride, platinum, rhodium, or aluminium of thickness less than that of the intended oxide layer. During the oxidizing process the formation of the silicon oxide layer may be interrupted to etch away the oxide layer so far formed, at least for part of its thickness, so that the final layer can be sunk to a greater depth than otherwise. Etchants used in the process are hydrofluoric acid or a mixture of hydrofluoric acid,nitric acid and water. Descriptions are given of the application of the method to the manufacture of Schottky diodes (Fig. 4, not shown), PN junction diodes (Fig. 5, not shown), transistors (Fig. 6, not shown) and monolithic circuits. Where several separate semi-conductor elements are required in a single silicon body mounted on a support, they may be insulated from one another by walls of silicon oxide formed right through the silicon body. Reference is made to Specifications 1,208,575, 1,208,576, 1,208,577 and 1,208,578.
Patent GB-1243479-A (GB)
Title: Optical brightening of paper
IPC: D21H21/32
Filed: 1968-08-02
Abstract: 1,243,479. Treating paper. J. R. GEIGY A.G. 2 Aug., 1968 [3 Aug., 1967], No. 44885/ 70. Divided out of 1,239,818. Heading D1P. [Also in Divisions C2 and C3] Optical brighteners for paper and paper pulp comprise compounds of the formula: in which R 1  represents hydrogen, an alkyl, alkoxyalkyl or alkylamino group each of which may be substituted by hydroxy or alkoxy groups, a cycloalkyl group optionally substituted by alkyl, or a phenyl radical optionally substituted halogen, alkyl or alkoxy, R 2  represents hydrogen or an alkyl or alkoxyalkyl radical each of which may be substituted by hydroxy or alkoxy, R 3  represents hydrogen, alkyl or halogen and M<SP>+</SP> is a cation derived from hydrogen, alkali or alkaline earth metals, ammonia, amines or aluminium, the alkyl and alkoxy groups containing 1-6 carbon atoms. Paper may be brightened by including the compound in the pulp or, preferably, by surface treatment of the paper using, e.g. (a) an aqueous solution of the brightener, (b) a sizing composition which is an aqueous binder preparation, e.g. based on starch, or an aqueous acrylic polymer composition or (c) coating compositions comprising a sizing preparation and a white pigment. Examples 28-31 relate to the surface treatment of paper and Example 32 to a brightened paper pulp.
Patent GB-1180642-A (GB)
Title: Method and Apparatus for Making Multiple Copies of an Original Sheet Bearing Graphic Subject Matter
Inventor: MIGNONE ALBERT EDMUND
IPC: G03G13/28
Filed: 1967-01-03
Abstract: 1180642 Producing lithographic masters electro-photographically ADDRESSOGRAPH MULTIGRAPH CORP 3 Jan 1967 [13 Jan 1966 25 Jan 1966 2 Feb 1966(3)] 44990/69 Divided out of 1180641 Headings B6C and C3 The subject-matter of this Specification is identical with that described in Specification 1180641 but the claims are not confined to the formation of a latent electrostatic image in the production of the lithographic masters.
Patent GB-1478109-A (GB)
Title: Process for production of beta-chloroethyl trichlorosilane
IPC: B01J27/00
Filed: 1975-10-30
Abstract: 1478109 Preparation of chloroethyl trichlorosilane DYNAMIT NOBEL AG 30 Oct 1975 [24 Dec 1974] 45070/75 Heading C3S #-Chloroethyl trichlorosilane is prepared by reaction of vinyl trichlorosilane with HCl at 30-65 C. and substantially 1 atmosphere pressure in the presence of 1-15 wt. per cent of the vinyl trichlorosilane of a Lewis acid. In examples ViSiCl 3  is heated with a slight excess of HCl at 40 or 60 C. i.p.o. 1À5-10% of AlCl 3 .