baber/WOPTO huggingface dataset:
Patent GB-1172928-A (GB)
Title: Improvements in Froth Flotation Apparatus
Inventor: WARMAN CHARLES HAROLD
IPC: B03D1/16
Filed: 1967-12-19
Abstract: 1,172,928. Mixing and aeration apparatus. RESEARCH & DEVELOPMENT PTY. Ltd. 19 Dec.. 1967. No. 57655/67. Headings B1C and B2H. Froth flotation apparatus comprises a rotor 1 mounted on a hollow shaft 2 down which gas is induced or forced to form a liquid-free zone 21 surrounded by a mixing zone 23. Fixed baffles 11 and radially adjustable baffles 12 are mounted on the cell bottom whereby mixture flows inwardly from the mixing zone 23 to form a secondary circulation 26 (see also Fig. 3, not shown), as well as outwardly. The vanes 11, 12 may be curved in plan (see Fig. 2, not shown); the outer edges of the vanes 12 are displaced rearwardly with reference to the direction of rotation of the rotor. They have a height of about 1/6 and clearance of 1/20 of the lower diameter of the rotor; the diameters of the circles on which their outer and inner edges lie are about 0.65 and 1.1 thereof; and the angle of their sloping edges is about 40 degrees to the horizontal. The circulation flows will take the form of a torcus in which each fluid element traces a helical path.
Patent GB-1183600-A (GB)
Title: Improvements in or relating to Automatically Cleaned Solvent Filters
IPC: B01D29/39
Filed: 1967-12-20
Abstract: 1,183,600. Self-cleaning filters. G. MAESTRELLI. 20 Dec., 1967 [13 Oct., 1967], No. 57781/67. Heading BID. A plurality of vane-shapedfilter elements D are secured to a common shaft F so that when the latter is rotated, portions of the solvent present in the chamber B are subjected to centrifugal motion and (by reaction against the chamber wall) centripetal motion, whereby the elements D are cleaned of accumulated dirt. The vane-to-housing separation 100 increases circumferentially. As described, the filter elements are similar to those of Specification 1181273 and the device operates similarly. As shaft F rotates (after filtration), the solvent is urged outwardly (arrows V, T) into space 100 until it meets baffle plate 112, which is axially longer than the elements D and so directs solvent radially inwards, arrows U (Fig. 1, not shown). It may be used as a dry-cleaning machine filter.
Patent GB-1299008-A (GB)
Title: Magnetic storage devices
IPC: G11C17/02
Filed: 1970-12-07
Abstract: 1299008 Magnetic storage apparatus PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 7 Dec 1970 [10 Dec 1969] 58018/70 Heading H3B In a magnetic storage device of the type in which individual areas 1 of a magnetic film whose coercivity decreases rapidly in a small temperature range are heated above this range in the presence of an applied external magnetic field to store a digit the value of which is determined by the direction of the field, the field being applied by means of current carrying printed conductors 2 which are deposited so as to trace a tortuous path between a plurality of the areas. Reading is performed by the Faraday effect using a polarized laser beam which is directed on to the areas 1 magnetized at right angles to the plane of the films. In an alternative arrangement, Fig. 2 (not shown) the storage areas are in the form of closed loops round the printed conductors, the layers being deposited on a substrate which may itself be magnetic and form part of the loop. Since the magnetization of the films lie parallel to the plane of the films read out is by means of the magneto-optical Kerr effect. If the capacity of the store is increased by using more storage areas more than one printed conductor is used or the areas may be divided into sub-groups of equal size each sub-group being provided with its own printed conductor, Fig. 3 (not shown). Fig. 4 shows the selection system for reading and writing in which a laser beam 14 controlled in direction by digital light deflector 11 is divided at 12 into several parallel output beams 15, the spacing between which is equal to the spacings between the sub-groups, so that with a given deflection by deflector 11 the beams impinge simultaneously on corresponding areas of the subgroups. When information is to be written in the laser beam is switched to high energy and appropriately poled currents fed to all the printed conductors from register 17. To read out the laser beam is switched to low energy so as not to destroy the information and the reflected light directed through a respective analyser into a respective photo-electric amplifier 16 the output of which is applied to the register. The information read may be rewritten in a different location or obtained at 20. The material of the films may be MnBi, Gd 3 Fe 5 O 12 , Al-ferroxdure YFeO 3  or silicon-iron.
Patent GB-1410869-A (GB)
Title: Skirting convector space heaters
IPC: F24D19/04
Filed: 1973-12-15
Abstract: 1410869 Convector space heaters T M BUNTEN 15 Dec 1973 58218/73 Heading F4S In a skirting convector space heater of the type comprising a transversely finned tube 71, 72 arranged within a convector casing 75 and supported on a mounting bracket 46, a guide member 10, Fig. 1, is interposed between the finned tube and a horizontal shelf portion 61 of the mounting bracket. In use, the guide member 10 largely eliminates the undesirable scraping noises which generally occur due to expansion and contraction of the tube relative to the supporting bracket. The guide element 10 is made preferably of a synthetic plastics material such as asbestor filled polypropylene, and has a base portion 11 on the underside of which (see also Fig. 2) are runners 18 which in use rest on the shelf portion 61 of the mounting bracket 46. The guide element also comprises an upright portion including arms 30, 31 shaped to extend between a pair of the tube fins 72 and to receive and grip the tube. The guide element 10 is also located between the tube fins by pins 21 extending from the base portion 11.
Patent GB-1421670-A (GB)
Title: Method and apparaturs for determining active power and effective resistance
IPC: B23K11/25
Filed: 1973-12-19
Abstract: 1421670 Measuring active power; measuring resistance MESSER GRIESHEIM GmbH 19 Dec 1973 [22 Dec 1972] 58766/73 Heading G1U The power dissipated in a system and its effective resistance are measured by multiplying values corresponding to current and voltage integrating the product, periodically sampling the integral and applying it to an indicator or control device and also squaring the voltage or current, storing it over the integration period, sampling the stored value and applying it to a divider whose other input receives the sampled integral. In a spot welding system, the integrator 14, sampling gates 25, 117 and stores 33, 118, 115 are controlled by a single timing control 45. The integration period is chosen to be a few half-cycles of the power supply 142 fed to the welding electrodes 103, 104. The integrator is reset after each specified period shortly after the gate 25 is opened to set the integral value into store 33 which is erased after a fixed store period less than the integration time. The store output representing power is compared to a reference value 99 and the difference used to control the supply. Divider 122 receives the power signal as one input and a value corresponding to current squared at its other input. The output representing effective weld resistance passes to an indicator 137 and threshold trigger 138 which interrupts the supply if an abnormal resistance value arises. Specification 1412695 (Division G1) is referred to.
Patent GB-1420975-A (GB)
Title: Batteries
IPC: H01M10/0566
Filed: 1972-12-22
Abstract: 1420975 Electric cells UNION CARBIDE CORP 22 Dec 1972 [23 Dec 1971] 59373/72 Heading H1B A non-aqueous primary or secondary battery system comprises an anode and a cathode and an electrolyte formed of a solute dissolved in nitrobenzene or a substituted nitrobenzene compound. The solvent may have the general formula where R is hydrogen, a halogen, an alkyl or alkoxy group of 1-5 carbon atoms, sulphur, an N-alkyl substituted amino group or a nitro group. Particular examples given are nitrobenzene, 2-nitrotoluene, 1-chloronitrobenzene and p-methylisopropyl nitrobenzene, also normally solid nitrobenzene derivatives may be used dissolved in benzene, toluene or nitrobenzene, e.g. 1-fluoronitrobenzene in benzene. The electrolyte solute may be a Lewis acid or a double salt of a Lewis acid and an inorganic ionizable salt. The Lewis acid may be boron bromide, chloride or fluoride or aluminium chloride or bromide, and the ionizable salt may be the fluoride, chloride or bromide of lithium, sodium or potassium. As shown in the cell of Fig. 3 the cathode 20, which may comprise the chloride or fluoride of Ag, Cd, Pb or Cu, the oxide of Ag, Cu, Mn, Ni or Pb, nickel fluoride or cupric sulphide, is supported on a Ni screen 22 and disposed in a can base 12. Then there is assembled a glass fibre mat separator 24 and supported on a Ni screen 30 an anode 26, 28 which may comprise an alkali metal, alkaline earth metal or alloys thereof with each other and other metals, e.g. Li, Na, K, lithium-magnesium or lithium monoaluminide. A lead 32 extending from the anode passes through a second separator 34 to pass through a tube 16 insulated by ceramic fitting 18 from the can top 14. A solder seal is formed around the cell to form a liquid- and gas-tight enclosure. The electrolyte, e.g. a 1 molar solution of lithium aluminium tetrachloride in nitrobenzene, is vacuum impregnated into the cell through tube 16 which is subsequently sealed by solder. A number of particular examples are given.
Patent GB-1323169-A (GB)
Title: Borohydride treated celluloses
IPC: A61L15/28
Filed: 1970-12-15
Abstract: 1323169 Surgical dressings: sutures JOHNSON & JOHNSON 15 Dec 1970 [15 Dec 1969] 59495/70 Heading A5R [Also in Division C3] Surgical dressings in the form of knitted or woven fabrics, films, fibre pads and sutures are made from a hemostatic material which may be left in contact with a wound whereby a clot forms in a few minutes and which may be left in a closed wound to be dissolved by body fluids, which hemostatic material is obtained by providing an oxidised cellulosic material and treating it with a borohydride under alkaline conditions.
Patent GB-1354808-A (GB)
Title: Single point mooring system
Inventor: SCHIRTZINGER J F
IPC: B63B27/24
Filed: 1971-12-22
Abstract: 1354808 Mooring ships AIR LOGISTICS CORP 22 Dec 1971 [4 Jan 1971] 59774/71 Headings B7A and B7S [Also in Division F1] In a single point mooring system one end of a hollow rigid boom 10 is pivotally connected to underwater loading conduit 28 at anchored coupling 22 and extends therefrom to the water surface. The other end of the boom includes bumper collar 32, messenger pole 34 and cable 42 which holds mooring lines 30 above the water and flexible tube 44 for establishing fluid transport communication with vessel 54. Flotation section 18 surrounds a portion of boom 10 and provides sufficient buoyancy to maintain the mooring lines and flexible tube 44 above the water surface. In the system shown couple 22 is secured to a submerged buoy 24 but it may be secured to a submerged piling. The buoy shown has an air cell in part 58 which enables it to remain biased against cables 26.
Patent GB-1380942-A (GB)
Title: Method for forming and vulcanising vulcanisable materials and articles vulcanised thereby
IPC: B29C48/95
Filed: 1971-12-23
Abstract: 1380942 Extruding vulcanized material MITSUBISHI PETROCHEMICAL CO Ltd 23 Dec 1971 [29 Dec 1970 26 June 1971] 60017/71 Heading B5A [Also in Division H1] A rubber material, e.g. polyisoprene or a diene rubber, or a synthetic resin material, e.g. polyethylene, containing a vulcanizing organic peroxide, is shaped as a copper electrical conductor covering, or as a tube, and vulcanized during passage through an elongate extrusion die, with the admission to the die surface of a lubricant having viscosity, absorption into the material, and gelling parameters within stated ranges as determined by specified tests. Numerous lubricants are specified, and the material may comprise various stated polymers, with examples being given of the extrusion of vulcanizable polyethylene coverings on to copper conductors precoated with a semiconducting vulcanizable polyethylene. In the covering of an electrical conductor w, the covering R is formed in an upstream portion 31 of the die, e.g. of less than 1 m. length, with the lubricant admitted under pressure from an annular chamber 42 through an annular porous die wall 41 upstream of, and optionally at other locations sequentially along, an elongate die vulcanizing portion, e.g. of 1 to 20 m. length, comprising a number of bolted together die sections 32, 33, upstream of a cooling section 5 through which the extrusion passes in contact with cooling water circulated under pressure. The die may comprise iron, brass, copper, or aluminium, and the vulcanizing section thereof may be heated by an electrical band heater 6, by a surrounding hot oil jacket, by passage of electric current through the die wall, or by induction heating, and the cooling section 5 is mounted for movement, e.g. on wheels, to permit thermal expansion and facilitate the addition and removal of die sections. A covering of polyethylene not containing vulcanizing agent may be applied to the vulcanizable covering intermediate the zones in which it is formed and vulcanized, to prevent direct contact thereof with the lubricant. In the extrusion of a tube Fig. 2 (not shown), the forming within the die is effected around a mandrel heated, e.g. by an internal electrical cartridge heater and similarly supplied with lubricant, and which may either extend only up to the entrance of the cooling zone, or may extend therethrough to support the tube.
Patent GB-1411589-A (GB)
Title: Pushbutton keyboard system
IPC: G06C7/02
Filed: 1972-12-29
Abstract: 1411589 Mechanical switches TEXAS INSTRUMENTS Inc 29 Dec 1972 [20 Nov 1972] 60050/72 Heading H1N A keyboard switch comprises an insulating substrate 26, Fig. 3, carrying a plurality of contact pads 38, 41, 42, 44 engaged by a flexible contact disc 22 which normally rests at its peripheral edge 23 on crescent shaped contact pads 38, 41 and is depressed, as by push-button 18 via spring 52 to engage one or more contact pads 42, 44 arranged radially inwardly of the periphery 23. In the example shown the disc is domed to provide a snap-action movement with a restoring action as described in Specification 1,395,647. The contact pads are connected as by hollow tubular conductors 40, 46, 48 to a printed circuit board (not shown) on the underside of the substrate 26 and retained by a rigid support 32. The disc 22 may be of stainless steel coated with gold at its margin 23. In a modification the disc 22, Fig. 9, may be depressed by a slider 80 coupled via a spring 102 with a rocker 90 having a projection 104 engageable with an insulating substrate 30 covering each disc 22. As shown in the "on" position the spring 102 is retained substantially vertically between corresponding projections 88, 100 on the slider 80 and rocker 90 respectively. In the "off" position, Fig. 8 (not shown) spring 102 lies substantially horizontally between the projections 88, 100. Various modifications are described in which the switches are arranged on printed circuit boards with cross-over circuitry in which the cresent shaped pads 38<SP>1</SP>, Fig. 7, have two spaced connections 40, 43 for one printed circuit 70 whereby another circuit 71 spaced between the connections 40, 43 is crossed over, The modification of Fig. 7, also provides for two way switching between the circuit 70 and circuits 73 and 79. The radially inner contacts 83, 85 are engaged when the disc (not shown) is depressed while disc becomes disengaged from a third contact 75 on the arcuate line of the crescent contact 38<SP>1</SP>. In the non-depressed position the disc margin normally engages the third contact 75.
Patent GB-1288439-A (GB)
IPC: F16H25/22
Filed: 1970-12-18
Abstract: 1288439 Screw and nut gearing CENTRALNE BIURO KONSTRUKCYJNE OBRABIAREK 18 Dec 1970 [19 Dec 1969] 60260/70 Heading F2Q  In a circulating ball screw and nut arrangement consisting of a pair of nuts 3, 4 on a shaft 7, the outer ends of the nuts carry rings 13, 14 with radial teeth 15 engaging similar teeth on the ends of the nut housing, or as shown, of rings 17, 18 secured to the housing. The number of teeth on the respective pairs of interengaging members differ slightly, thus permitting fine angular adjustment of the nuts to take up backlash. The rings are preferably made of plastics material.
Patent GB-1379208-A (GB)
Title: Telegraphi signalling apparatus
IPC: H03K3/30
Filed: 1971-12-29
Abstract: 1379208 Modulators; switching circuits; telegraphy GENERAL ELECTRIC CO Ltd 29 Dec 1971 [29 Dec 1970] 61613/70 Headings H3R H3T and H4P In telegraph signalling apparatus of the type in which an oscillator circuit powered by the telegraph signal selectively produces an oscillation in dependence upon the mark and space condition, the oscillator includes a transistor biased by a Zener diode such that the oscillator presents a constant resistance for differing signal levels. The Specification describes a frequency-shift modulator circuit in which double current D.C. signals switch on and off an oscillator 1, 4, 5, the output of which selects one of two frequencies of a sending oscillator 29, 30. The incoming double-current D.C. signals are rectified at 2 to provide a steady power supply for oscillator 1. The signals also switch on and off, according to their polarity, a transistor 9 which, via winding 11, is coupled across the oscillator circuit and so allows or inhibits oscillation. A Zener diode 7 in conjunction with resistors 6 and 14 maintains the input impedance of the oscillator constant with changes in the signal voltage. In addition, a transistor 17 becomes non-conducting if the supply voltage derived from the signal drops below a given value and thus removes the shunt circuit 15, 16 from the emitter impedance 14 and so inhibits oscillation. The output of the oscillator is rectified and amplified at 19 and 22 to render one or other of transistor switches 28 conducting whereby part or all of the inductance 26 is connected in the tuned circuit of an oscillator 29, 30 so as to shift its output frequency between two values.
Patent GB-1359992-A (GB)
Title: Preparation of 3-thienylacetonitrile and derivatives thereof
IPC: C07D499/72
Filed: 1970-12-30
Abstract: 1359992 3-Thienylacetonitrile BEECHAM GROUP Ltd 3 Nov 1971 [30 Dec 1970] 61736/70 Heading C2C 3-Thienylacetonitrile is manufactured by reacting tetrahydrothiophene-3-one with cyanoacetic acid or a salt or ester thereof thus forming a mixture of four dihydro thiophene-acetonitriles and converting these by dehydrogenation or oxidation to 3-thienylacetonitrile. The intermediate mixture of 3-cyanomethyl-2,5-dihydrothiophene - 3 - cyanomethyl - 4,5 - dihydrothiophene and 3 - cyano - methylene tetrahydrothiophene is claimed per se.
Patent GB-1253469-A (GB)
Title: Electrically driven counterbalanced high-lift truck
IPC: B66F9/075
Filed: 1969-12-22
Abstract: 1,253,469. Electrically driven lift trucks; vehicle frame constructions. DSO BALKANCAR. 22 Dec., 1969 [26 Dec., 1968], No. O2462/69. Headings B7D and B7H. An electrically driven high-lift truck includes a chassis 3, a driving axle 1, a steering post 2, two batteries 7, 8, Fig. 2, and a lifting device 4. The chassis includes a hollow rectangular girder 10, Fig. 2, extending-longitudinally of the truck and secured to a plate 11 for receiving the steering post 2 and guide rails 24 for a counter weight 5 movable longitudinally by an hydraulic cylinder 18. The girder 10 extends through an opening in a wall 25 and is connected to longitudinal girders 14 secured to arms 15 which carry the driving axle 1. The batteries 7 and 8 rest on supports 16 fitted with rubber pads (29), Fig. 5 (not shown), engaged by pins (30) on the bottoms of the battery cases. The driving axle 1 includes two motors within a housing 33, Fig. 6. The inner ends of shafts 34 of rotors 31 are rotatably mounted in a dividing wall 35. The housing 33 is connected to a reduction gear housing 32 connected to the arms 15.
Patent GB-670242-A (GB)
Abstract: 670,242. Calculating-apparatus. AKTIEBOLAGET FACIT. June 4, 1948 [June 19, 1947], No. 15166/48. Class 106 (i). Transfer mechanism for a calculating-machine in which the transfer from a lower to a higher denomination takes place throughout the revolution of the lower numeral wheel is characterized in that when the lower numeral wheel is rotated at constant velocity, the transfer to the higher wheel is performed-at a pulsating velocity with one pulsation during each revolution of the lower numeral wheel. Each numeral wheel 23 is geared to a gear 21 connected with a sun-wheel 20 meshing with a planet-wheel 18 itself meshing with a toothed ring 13 and being carried by a gear 17. The ring 13 receives differential movements from an actuator (not shown) through a transmission-wheel 12 mounted on a shaft 11 carried by arms 11a so that the wheels 12 may roll round their rings 13 into mesh with driving- wheels 15. The gear 17 carrying the planetwheel receives a tens transfer movement from the numeral wheel of next lower denomination through continuous gearing 23, 22, 21, 26, 27 and 29. The gears 26, 27 are of elliptic or other form so that their velocity ratio varies during a revolution and they are so connected that the speed of the transfer movement is greatest as the wheel of the lower denomination passes through its zero position. An elongated tooth 21a on each gear 21 is thus able to give a definite impulse to a feeler of any known type to control the stopping of repeated subtractions and the step-shifting of a movable carriage in division operations. Specifications 661,873, 661,874 and 669,282 are referred to.
Patent GB-2002338-A (GB)
Title: Method of forming a magneto- optical polycrystalline cobalt ferrite layer on a substrate.
IPC: C01G51/04
Filed: 1978-08-11
Abstract: An aerosol comprising a solution (as the disperse phase) consisting of a solvent and salts of metals, the oxides of which metals form the desired ferrite, is sprayed onto a heated substrate. If necessary, the deposited layer is heated so that the cobalt ferrite has a spinel crystal structure. A preferred ferrite has composition CoxFe3-xO4 wherein 0.3 < x < 1.5
Patent GB-2028122-A (GB)
Title: Bath fixing device and methods of fixing baths
IPC: A47K3/16
Filed: 1978-08-15
Abstract: A device for use in fixing a bath of the type having a cradle with feet each consisting of a base plate 3 on a height adjusting screwed stem 4 comprises a pressed and punched plate member Y with a base portion 7 with a hole for a screw 10 to the floor, and a pair of wings 9 in a plane parallel to the base portion and diverging from one side of the base portion. The base plate 3 of a foot 2 is slid under the wings 9 with the screwed stem upstanding between the convergent edges of the wings, until the base plate jams, and two such devices are used to hold the back feet of a bath, while the front feet are either directly screwed to the floor or are held by two further devices. <IMAGE>
Patent GB-2014454-A (GB)
Title: Rodenticide pack
IPC: A01M25/00
Filed: 1979-01-22
Abstract: Rodenticide packs have at least one aperture therein to enable the odour of the bait to escape and thus attract the rodents to the pack, and contain in addition to the bait a rodenticide in particulate form, the aperture(s) being of a size to retain the rodenticide particles within the pack. The rodenticide may be a hydroxy-coumarin, an indanedione, a calciferol, or a single dose poison. The pack may be made from plastics film.