baber/WOPTO huggingface dataset:
Patent GB-1193457-A (GB)
Title: Continuous Bath Smelting and Refining of Oxide Ores to Steel
IPC: C21B13/10
Filed: 1967-11-23
Abstract: 1,193,457. Extracting and refining iron. CONZINC RIOTINTO OF AUSTRALIA Ltd. Nov. 23, 1967 [Nov. 28, 1966], No. 53453/67. Heading C7D. [Also in Division F4] In a continuous process for the direct production of steel, oxidic iron ore which may be pre-heated and pre-reduced is fed into a bath of metal contained in the smelting zone of a furnace having also a refining zone and a slag separation zone, while carbon-containing reductant, at a least part of which is in the form of molten pig-iron, semisteel or other carbon-containing ferrous alloy is also fed continuously into the smelting zone either directly or via the slag separation zone. Preferably the temperature of the metal in the smelting zone is maintained at 1400‹ -1550‹ C. while in the refining zone metal is lanced with oxygen containing gas and slag flows counter current to the metal for at least part of the length of the zone. As shown in Fig. 1 molten pig-iron is fed into the primary smelting zone 11 at 16, while hot reduced ore with any necessary fuel or additional carbonaceous reducing agent is charged through lances 16<SP>1</SP> The bath circulates to secondary smelting zone 12 where some of the evolved carbon monoxide is burnt with hot air or oxygen introduced at 18. Onward passage of slag is prevented by bridge 19, which causes slag to be diverted to zone 15 from where it is removed after metal has separated out. Part of the metal flows into refining zone 14 where it is lanced with oxygen and fluxes added. Other forms of apparatus are described, in some of which the metal is subjected to two-stage refining
Patent GB-1429325-A (GB)
Title: Apparatus for precision metering of fluids
IPC: G01F11/02
Filed: 1973-11-21
Abstract: 1429325 Sampling liquids ABBOTT LABORATORIES 21 Nov 1973 [22 Dec 1972] 54129/73 Heading B8N [Also in Divisions G1 and F1] Apparatus for the precision metering of fluids comprises a first capillary conduit 7, 9 having in it a minute aperture 8, a second capillary conduit 11 having one end intersecting the first conduit at the aperture, the aperture then dividing the first conduit into a section 9 and a section 7 which is common to both conduits and providing first and second fluid paths 9, 7 and 11, 7, the aperture 8 allowing formation of a first interface between the first fluid path and conduit 11 (Fig. 3c, not shown) and a second interface between the second path and section 9 of the first conduit (Fig. 3a, not shown), liquid then traversing each of the fluid paths substantially free from contamination from the other fluid path, the apparatus also including a first syringe 15 connected to the end of the conduit section 9 and a second syringe connected to the end of the second conduit 11, each syringe having a movable piston. In the apparatus shown, the first fluid (A), which may be saline, is stored in syringes 15, 23 and the second fluid (B), which may be a silicone oil, is stored in syringes 19, 47. Initially the section 9 is filled with A and section 7, 11 with B. Sample is aspirated into sections 7, 11 by a retraction of piston 49 of syringe 19. Sample is flushed out of section 7 by forcing fluid A from syringe 15 by means of piston 25 through line 13 and sections 9, 7. Sample is dispensed together with some fluid A by operation of piston 49 by a precise amount corresponding to the amount of sample to be dispensed. The remainder of the sample in section 7 is rinsed away by operation of piston 25 to force fluid A into sections 9, 7.
Patent GB-1455429-A (GB)
Title: Photographic camera
IPC: G03B9/70
Filed: 1973-11-22
Abstract: 1455429 Camera flash operation EASTMAN KODAK CO 22 Nov 1973 [24 Nov 1972] 54248/73 Heading G2A  A camera for use with a flash device has compensating means for equalizing the force required to actuate the shutter mechanism in the flash and daylight modes. In Fig. 1 (not shown) the camera mechanism is shown ready for use with a flash device, and in Fig. 2 is shown during operation. A release lever 50 can pivot in a recess 19 in a raised portion 18 of the camera frame 10. The abovementioned compensating means is a spring 74, attached at one end 78 to lever 50, its other end 76 being free. At one end of lever 50 is mounted a shutter driving spring 66 having a free end 70. A body release lever 30 pivots on a fixed pin 32 and is spring-urged clockwise. A sensing and firing member 80 pivots on a fixed pin 82, and is urged anticlockwise by a spring 84 so that an arm 90 extends upwards into engagement with a pre-energized striker 28 of the flash-lamp 24 mounted in a socket 22. A retracting member 110 is pivotally mounted on frame 10, and when a flash unit is mounted in the socket, member 110 takes up the position shown in Fig. 2. When the button 36 of release 30 is depressed, release 30 pivots anti-clockwise until a lug 38 thereon comes into contact with end 70 of spring 66, which causes lever 50 to pivot anticlockwise. End 60 of lever 50 comes into contact with the end 87 of an arm 86 forming part of member 80, upon which movement of lever 50 then ceases. Movement of lever 30 continues, however, so that energy is stored in spring 66, although this is still not sufficient to actuate the flash firing mechanism. Eventually a surface 40 of lever 30 comes into direct engagement with the end of lever 50, which causes it to pivot further anti-clockwise, and so push member 80 anti-clockwise sufficiently for end 91 of arm 90 to fire the flash. At the same time a high-energy cocked lever 64, which has been held by a latching portion 62 of lever 50, is released to impact the end of the shutter blade 12, so pivoting it to uncover the exposure aperture 20. When no flash unit is present, retracting member 110 is spring-urged downwards into the position shown in Fig. 4, in which a lug 116 thereon comes into contact with a lug 92 on member 80. This pivots member 80 clockwise so that arm 90 is drawn downwards out of its firing position. In this position of member 80 one end 89 of its extension 88 comes above end 76 of spring 74. Thus when button 36 is pressed to pivot release 30 anticlockwise, spring end 76 engages against end 89 and introduces an additional force into the system which has to be overcome by the operator pressing button 36. This simulates the force required to release the pre-energized striker wire when a flash unit is present. Continued movement of release 30 causes actuation of the shutter as before. This time the movement of the shutter is terminated by abutment of the shutter blade 12 against a lug 96 on extension arm 88, thereby ensuring a shorter exposure time for daylight mode operation.
Patent GB-1363700-A (GB)
Title: Device for detecting location of moving body
IPC: B66C13/22
Filed: 1971-11-26
Abstract: 1363700 Track apparatus SUMITOMO ELECTRIC INDUSTRIES Ltd 26 Nov 1971 [26 Nov 1970] 55103/71 Heading B7N [Also in Division H4] In a system for detecting the location of a moving body along a predetermined path, e.g. a railway, two conductors which are transposed periodically extend along the path and are connected to a receiver, three pick-up devices being provided on the body and arranged along an axis extending along the path. In one arrangement the three pick-up devices are energized respectively by different frequencies which are successively reduced to zero at the receiver as the body passes over each crossover point, enabling the direction of movement to be determined, a counter at the receiver counting the number of zero points in the signal to determine the distance. A separate loop at a predetermined location on the path is used to provide a reference signal which is fed back to the fixed station. Alternatively the receiver and counter may be carried by the moving body, a frequency f being supplied to the conductor pair and a frequency f<SP>1</SP> to the reference loop. The moving body carries three pick-up devices as before for the conductor pair and a further pick-up device for the reference loop.
Patent GB-1364446-A (GB)
Title: Road vehicle lighting systems
IPC: F21V14/08
Filed: 1970-11-20
Abstract: 1364446 Road vehicle lighting systems JOSEPH LUCAS (INDUSTRIES) Ltd 10 Nov 1971 [20 Nov 1970] 55209/70 Heading G1A In a road vehicle lighting system comprising in combination two dipped beam head lamps 47, 48 Fig.4 a main beam head lamp 49 and a projector receiver unit 14, 22 comprising a controlled shutter projector head lamp 14, a dip switch 44 is employed wherein in a first position the dipped beam head lamps are energized and in a second position the main head lamp beam is energized. In both positions the projector receiver unit is energized but in its second position means are provided so that the minimum strength of the signal required by the receiver to operate the shutter is increased to prevent false actuation by reflected light. The projectorreceiver unit is of the type in which light from an oncoming vehicle is sensed photo-electrically so as to cause movement of a shutter across the projector headlamp to avoid dazzling the driver of an oncoming vehicle. When the dip switch 44 engages a contact 46 the dipped beam headlamps 47 and 48 and the projector-receiver unit are energized. The output from the photocell 23 controls the current flowing through the winding 26 in a magnetic circuit that controls the movement of the shutters. When the dip switch 44 is moved to extinguish lamps 47, 48 and light lamp 49 the current flow through the resistor 59, is altered with the effect that the minimum strength required to operate the shutters is increased.
Patent GB-1422680-A (GB)
Title: Current measuring circuit and method
IPC: H01J49/02
Filed: 1973-11-28
Abstract: 1422680 Current measuring VARIAN ASSOCIATES 28 Nov 1973 [29 Nov 1972] 55235/73 Heading G1U [Also in Division H3] A known amplifier 13, 28, 27, 32, Fig. 3, for very small currents flowing from an electrode 11 of a mass spectrometer tube 12, and having a first negative feedback loop from cathode follower 32 via a capacitor 42 to the input, is characterized by a second negative feedback loop via resistor 92 to the screen of the input electrometer stage 13, the second loop including a switch 95 and an integrator 82, 96, and being such that whilst switch 95 is closed the integrator adjusts the voltage on the screen of the input stage 13 to compensate for drift in the spectrometer current and maintain the output voltage displayed on a meter 93 zero, and whilst the switch 95 is open, this occurring for periods of about 3 seconds, whenever a sample is inserted into the spectrometer 12 for examination, the integrator maintains the output it had just prior to opening of the switch, whereby the output voltage resulting from the injection of the sample is displayed free of any base line drift in either the spectrometer or the amplifier. The circuit is initially set up by (a) opening switch 95 and adjusting a potentiometer 99 until the output voltage of the amplifier 82 on a meter 104 is steady, and (b) closing switch 95 and adjusting a potentiometer 21 until the voltage on meter 104 is at a predetermined level, e.g. 5v. The gain of the amplifier 83 can be adjusted by a resistor 92.
Patent GB-1403077-A (GB)
Title: Process for the production of 1-alkyl-3-phenoylindans
IPC: C07C17/281
Filed: 1972-12-05
Abstract: 1403077 Dimerizing styrenes BADISCHE ANILIN- & SODA-FABRIK AG 5 Dec 1972 [6 Dec 1971] 55987/72 Addition to 1343445 Heading C5E 1-Alkyl-3-phenylindans are prepared by catalytically dimerizing a styrene optionally containing alkyl substituents in the presence of a surfactant and optionally a polymerization inhibitor. Suitable reaction conditions are as in the parent Specification 1,343,445. The surfactant may be anionic (e.g. carboxylates, sulphuric acid esters, alkyl sulphates, sulphated fatty acid monoglycerides or fatty acid alkylolamides, sulphated ethers, salts of lignin sulphonic acid, alkylsulphonates, alkaryl sulphonates, alkyl phosphates and salts of alkyl benzene phosphonic acids) cationic, e.g. (amine of quaternary ammonium salts, phosphonium salts and sulphonium salts) amphoteric (e.g. betaines, sulphobetaines and sulphatobetaines) or non-ionic, e.g. ethylene oxide adducts fatty acid monoglycerides, anhydrosorbitol fatty acid esters, fatty acid alkylolamides, saccharose fatty acid esters and reaction products of ethylene oxide and amines or amides). The surfactant may be used in amount 10-<SP>5</SP> to 10<SP>-1</SP> moles per mole styrene.
Patent GB-1162504-A (GB)
Title: Improvements in the Control of Hydraulic Presses.
IPC: B30B15/22
Filed: 1966-12-19
Abstract: 1,162,504. Hydraulic presses. ALLMANNA SVENSKA ELEKTRISKA A.B. 19 Dec., 1966 [20 Dec., 1965], No. 56679/66. Heading B5F. [Also in Division G3] Means for controlling the pressure in an hydraulic press comprises a ray source 12, a ray-sensitive device 13, and a screen 11 movable between the ray source 12 and device 13 under the influence of one of the main movable parts of the press. As shown, the screen 11 is secured to a lower piston 4 of the press, this piston 4 moving in a cylinder 2, the outflow from which is governed by a valve 18. Valve 18 is controlled by an auxiliary hydraulic system 17 including a valve 16 having a solenoid 15 connected through an amplifier 14 to the device 13. As seen in Fig. 2, the device 13 may comprise a large number of separate photo-cell units (21) and the screen 11 may be made of paper, the edge (22) of which is shaped to produce the desired changes in pressure. The press also includes an upper piston 3, a liquid-filled pressure chamber 5 and a rubber diaphragm 6 for shaping a workpiece 7 over a stationary shaping member 8.
Patent GB-1218575-A (GB)
Title: Improvements in pattern cards for textile machines
IPC: D03C15/00
Filed: 1967-12-16
Abstract: 1,218,575. Pattern cards. CHILDRENS KNITWEAR Ltd., C. E. HARDY and R. K. HUNT. 16 Dec, 1968 [16 Dec., 1967], No. 57241/67. Heading DIE. A pattern card made from plastic has hinge sockets 2, 3 moulded integrally therewith or bonded thereto, and has similar sockets on the other edge in which hinge pins 4, 5 are secured by crimping.
Patent GB-1284109-A (GB)
Title: Method of making thin film circuits
Inventor: SCHNECK JAMES FREDERICK
IPC: H05K1/16
Filed: 1969-12-02
Abstract: 1284109 Printed circuits; resistors WESTERN ELECTRIC CO Inc 2 Dec 1969 [6 Dec 1968] 58685/69 Headings HlR and HIS A method of making a thin-film circuit comprises the steps of depositing a resistive layer on to a substrate, and then a conductive layer on to the resistive layer, removing an area of the conductive layer, by masking techniques, which includes the area of the required resistor, and finally removing part of both layers, again by masking techniques, to define the complete circuit pattern, including the resistor. The masking techniques used may consist of applying a photo-resist and then etching unwanted parts. The substrate may be made of glass, fused silica, glazed or unglazed ceramic, quartz or sapphire. The conductive layer may consist of two or more layers, for example, a chromium, nichrome or titanium layer followed by a gold or palladium layer. The resistive layer may be made of tantalum, or compounds thereof. Anodization may be used to increase the value of the resistor, after the circuit has been completed. This method may also be used to form capacitative components.
Patent GB-1147379-A (GB)
Title: 4-alkyl-dialkoxy-ª‡-methylphenethylamines and pharmacologically acceptable salts
Inventor: SHULGIN ALEXANDER THEODORE
IPC: C07C45/00
Filed: 1967-12-29
Abstract: 1,147,379. Amines. DOW CHEMICAL CO. 29 Dec., 1967 [29 Dec., 1966], No. 59099/67. Heading C2C. Novel compounds of the general formula (one R = H, the other R = C 1-4  alkoxy, R<SP>1</SP>= C 1-4  alkoxy and R<SP>11</SP> = C 1-6  alkyl) and their salts are prepared by reducing a compound of the formula optionally followed by salt formation. The novel compounds are nervous system stimulants, and may be administered in the form of pharmaceutical or veterinary preparations containing them together with a carrier or diluent.
Patent GB-1269849-A (GB)
Title: Spring clips
Inventor: NELSON JOHN FREDERICK
IPC: F16B5/12
Filed: 1969-12-03
Abstract: 1,269,849. Clips. ILLINOIS TOOL WORKS Inc. 3 Dec., 1969 [4 Dec., 1968], No. 59099/69. Heading E2B. A spring clip 10 comprises a plastics plate member having a section 12 integral with an arm member 14 flexibly movable to engage an end portion 28 in a recess 30 in the section 12 when the clip is fitted within a channelled workpiece, a moulding strip 20 to engage a margin 18 and an extremity 24 with opposite sides thereof. The section 12 has a split bifurcated shank with lateral shoulders for fitting into an aperture in a panel, the clip being retained by driving a block 38 attached to the section 12 into the shank. A sealing ring may be fitted between the clip shank and panel.
Patent GB-1454299-A (GB)
Title: Mechanical tube expander
IPC: B21D41/02
Filed: 1973-12-20
Abstract: 1454299 Tube expanding MANNESMANNMEER AG 20 Dec 1973 [28 Dec 1972 6 March 1973] 59243/73 Heading B3J To accommodate pipes of different diameters the level at which a tube expander is supported is adjustable. In one form, Fig. 1, the expander is mounted on two pairs of eccentrics securable by clamps 15 after adjustment. The eccentric shafts 17 are driven, through clutches (19) and worm gears (18), by a motor (20), Figs. 2 and 3 (not shown). The expander is expanded by a tapering core 2 operated by an hydraulic cylinder 10, and a yielding support 12 is provided for the tube 24. In another form, Fig. 4, a beam 26 carrying the expander is supported adjustably at each end by two pairs of slides 29 which are traversed along tracks 30 by lead screws 31 driven through clutches 33 by one or more motors 35. Bearings 28 in the slides 29 engage tracks 27 on the beam and are angularly adjustable to accommodate elevating only one side of the beam to facilitate alignment of the mandrel and pipe. An adjustable support 37 is provided for the pipe.
Patent GB-1334700-A (GB)
Title: Cameras
IPC: G03B17/20
Filed: 1970-12-23
Abstract: 1334700 Photographic cameras AGFA-GEVAERT AG 23 Dec 1970 [23 Dec 1969] 61094/70 Heading G2A A photographic camera has a manually set diaphragm aperture and a shutter set automatically in accordance with the brightness of the prevailing illumination and the set aperture, scales being provided to indicate the corresponding aperture settings and shutter speed and which are manually adjustable to alter the relationship between the scales, and means for indicating if the exposure time required for correct exposure is outside a given range of exposure times and when the relationship between the two scales is such that the correct exposure is given by any combination of aperture setting and shutter speed indicated as corresponding by the scales. The aperture is set by rotation of a pre-selector 1 which moves a rack 2 carrying a pointer 3 over an aperture scale 4 and also moves a rack 9 carrying a neutral density wedge 10 in front of a photo-resistor 11 which is connected to an exposure time RC determining circuit 12. Rack 2 is moved by the knurled edge of disc 1 whilst rack 9 is moved by the knurled edge 6b of a disc 6 which is capable of rotation independently of disc 1 but is rotated therewith by a pin 8 on disc 1 contacting a stop 7 on disc 6. Discs 16, 17 are vertically moveable between a solid line position and a dotted line position 16a, 17a, in the latter position rotation of disc 16 moves a further rack 18 carrying a scale 20 of exposure times relative to the aperture scale 4 and also moves rack 9. Rack 18 also carries a film 21/22 having a green portion 21 and a red portion 22. In operation, the diaphragm is set to a predetermined value, and the resulting shutter speed which will be given by circuit 12 is determined by depression of disc 6 and rotation thereof until an indicator lamp 14 is energized. The exposure time is then read from that value in scale 20 that is adjacent to lamp 14. If the red portion of film 21/22 is also adjacent the lamp this indicates that the exposure time will be outside the given range. Upon release of disc 6, racks 9, 18 are moved back to their initial positions by a spring 5 and the diaphragm may then be adjusted to another value in the event of the exposure time falling outside of the range. A further transparent shutter time scale may be provided on the rack 2 which is only illuminated when the lamp 14 lights up. A further lamp 13, coloured red, is also illuminated when the exposure time is outside the range. An alternative embodiment is described in which the movement of the shutter speed scale is controlled by the energization of an electromagnet.
Patent GB-2000221-A (GB)
Title: Hydraulic reciprocating pump
IPC: F04B1/02
Filed: 1978-06-14
Abstract: A submersible fluid pump, e.g. for supplying the actuator of a mine scraper winch, comprises at least one pair of cylinders 5a,b with pistons 2a,b adapted to reciprocate in anti-phase relationship; a non-return inlet valve 14a,b leading into each cylinder, the two inlet valves communicating with each other via a common fluid compartment 21; and a non-return outlet valve 18a,b from each cylinder, compartment 21 communicating via filter 22 with an hermetically sealed reservoir 28. A winch actuator system is described. <IMAGE>
Patent GB-2000788-A (GB)
Title: Surface treatment method for plastics materials
IPC: G03C1/91
Filed: 1978-06-16
Abstract: To improve adhesion of plastics materials to hydrophilic materials, their surfaces are coated with a prepolymer having at least two ethylenically unsaturated double bonds and polymerizing the prepolymer by ultraviolet radiation. Optionally a radically-polymerizable monomer is mixed with the prepolymer. The method is especially suitable for treating the surface of photographic film base to improve its adhesion to photo-sensitive emulsions.
Patent GB-2000986-A (GB)
Title: Manufacture of hydrocarbon conversion catalysts
IPC: C10G11/05
Filed: 1978-07-06
Abstract: The invention is a method of making composite particles which contain zeolites bound by a matrix of an oxide gel such as silica gel, and which may contain clay. Such composites are used for cracking hydrocarbons. In the method, an alkaline slurry containing the zeolites and an acidic sol of the oxide component in water is sprayed into a gaseous atmosphere before it has time to gel, so that it is formed into microspheroidal particles while it gels, but drying of the particles is avoided so that the gelled particles still contain most or all of the water. This technique saves on energy during the spraying operation, and makes it easier to remove alkali metal from the resultant particles.
Patent GB-2007927-A (GB)
Title: Drive arrangement for the drum of an automatic clothes washing machine
IPC: D06F37/30
Filed: 1978-10-04
Abstract: In order to provide a clothes washing machine with a high speed drive to the drum for spinning, the drum motor has wound in with its stator windings 3, 4, which are energised from the mains during the washing phase, a further winding 14, which may be part of the normal stator windings, and which is energisable during the spin phase by a mains powered static frequency converter 15. <IMAGE>
Patent GB-2032843-A (GB)
Title: Foamed phenolic board laminate
IPC: E04C2/20
Filed: 1978-10-31
Abstract: An insulating board of excellent properties is made from a core of foamed phenol-formaldehyde resin which has a closed cell content of at least 85% and on at least one face a glass fibre tissue or cloth laminated to the core using a water-based natural rubber adhesive. Essential properties relating to the water absorption, thermal conductivity, flexural strength, compressive peel strength and delamination peel strength of the laminate are specified. The laminate has excellent fire resistance and may comprise, in the adhesive, a fungicide and an anti-oxidant.
Patent GB-2012151-A (GB)
Title: Line guide ring for fishing rods
IPC: A01K87/04
Filed: 1978-11-02
Abstract: A fishing line guide ring is made from a thin-wall pipe and comprises an annulus 2A and mounting legs 4A having flattened ends 3A. The invention enables a very light weight ring to be provided which is particularly important for use with fly rods. <IMAGE>