baber/WOPTO huggingface dataset:
Patent GB-1375006-A (GB)
IPC: C22B23/02
Filed: 1971-12-10
Abstract: 1375006 Beneficiation of ores NILUX HOLDING SA 10 Dec 1971 [11 Dec 1970 8 April 1971] 57454/71 Heading C1A [Also in Division C7] In a method of beneficiating an oxide ore or ore concentrate of nickel, copper or cobalt by the segregation process, comprising mixing the oxide ore or ore concentrate with a halide salt and a suitable reductant while at an elevated temperature, an improvement is provided which comprises adding ferrous or ferric oxide to the ore or ore concentrate to increase the active iron content thereof. The active iron oxide content can be increased by adding ferrous or ferric oxide per se or by adding an ore containing ferrous or ferric oxide. In the examples a reactor is used comprising a silica tube 10, with a stopper 14 and thermocouple 18, heated by the furnace 16 and vibrated by the vibrostirrer 20. Ore is added to the heated reactor and the mixture roasted with the stopper left off. Pre-mixed calcium chloride/coke reagent is then added, the stopper is applied, and the charge is heated and vibrated to effect the reaction. On cooling the mixture is wet ground and magnetic segregation of the nickel-iron alloy produced is carried out. The process is applied to gamierite-type ore, nickeliferous laterite, asbestos tailings containing nickel, rougher concentrate and Tenke Fungurume ore and the effect of added Fe 2 O 3  and of various halides, is determined.
Patent GB-1203968-A (GB)
Title: Improvements in or relating to printing machines
Inventor: CROSSKEY ALBERT ARTHUR
IPC: B41F7/02
Filed: 1967-12-19
Abstract: 1,203,968. Printing apparatus. HOE-CRABTREE Ltd. 17 Dec., 1968 [19 Dec., 1967], No. 57726/67. Heading B6C. An offset printing machine is usable either for perfecting or for multi-colour printing and is converted from one use to the other by displacement of an impression cylinder and one of a plurality of blanker cylinders transversely of their axes. Blanker cylinders 20, 22 may cooperate in perfecting, or may co-operate separately with impression cylinder 24. When the machine is used for perfecting impression cylinder 24 occupies a position 24A, in which it is not in contact with blanker cylinders 20, 22, and when the machine is used for multicolour printing the cylinder 24 is in contact with both blanker cylinders 20, 22. Movement of blanker cylinder 20 out of contact with blanker cylinder 22, and of impression cylinder 24, is by rotation of eccentric mounts. Eccentric mounts of smaller displacement are used to trip cylinders 12, 14, 18, 22 and 24 between operative and inoperative positions, and impression cylinder 24 may occupy four positions in all. A web to be printed on may be perfected by blanker cylinders 20, 22, then have a further image printed on one side by blanker cylinder 18. Alternatively it may receive successive images on one side from all three blanker cylinders 18, 20, 22. Printing cylinders 12, 14, 16 carry lithographic plates, to which ink and water are supplied. Pneumatic rams may be used to trip the cylinders and varying arrangements of gears and clutches are used to drive them from a shaft.
Patent GB-1357974-A (GB)
Title: Method for the photoelectrophoretic production of images using o'ganic pigments
IPC: G03G17/04
Filed: 1971-12-16
Abstract: 1357974 Photo-electrophoretic composition; photo-electrophoresis CIBA-GEIGY AG 16 Dec 1971 [16 Dec 1970] 58462/71 Headings G2C and G2H A photo-electrophoretic composition comprises at least one electrically photo-sensitive pigment of formula or 4, 4'-diamino-1, 1'-dianthraquinonyl wherein R is an arylene radical, X and Y are hydrogen, halogen, alkyl or alkoxy or X and Y together with two adjacent C atoms for a benzene ring, X 1  and Y 1  are hydrogen, halogen, alkoxy, carbonamide or nitro and R 1  is a benzene ring. In the specific embodiments R is dimethyl phenylene, methylchlorophenylene, methoxyphenylene, mono or di chlorophenylene or fluoranthenylene, X and Y are methyl or chloro and R 1  is phenyl. The pigment may be suspended in a saturated aliphatic hydrocarbon together with a resin. Mono or poly chromatic compositions may be used.
Patent GB-1174420-A (GB)
Title: Improvements in or relating to Hay Harvesting Machines.
IPC: A01D78/10
Filed: 1966-12-30
Abstract: 1,174,420. Haymaking machines. BUCHER - GUYER A . G . MASCHINENFABRIK. 30 Dec., 1966 [30 Dec., 1965], No. 58485/66. Heading AlF. In a hay-rake of the type having powerdriven pronged rake-heads 21 rotating about stationary vertical shafts 15, the prongs 24 are pivotally mounted in the heads so that they can be retracted or deflected over a portion of their rotary path by means mounted on the vertical shaft between the lower end and the ground wheel which is carried by the shaft. In Fig. 1 each prong is bent so as to pass through a hole in a rim 20 and immediately inside the rim has a hairpin-bend 27, the inner end of the prong being secured to a hub 18. A small disc 29 is rotatably mounted on a support 28 so as to be contacted by the bends 27 over the area of their path immediately adjacent to the neighbouring rake-head. At this point stationary strippers 71, 72 assist in transferring hay from one rake-head to the next In Fig. 3 the disc 29a is obliquely mounted on a screwed collar 35 which can be raised to increase the range over which the prongs are deflected, or rotated to vary it angularly. In Fig. 6, the prongs are mounted on shafts 45 rotatable in bearings 44 in the head under the action of cranks 47 carrying rollers 48 engaging a continuous fixed cam-surface 49 on the shaft 15c.
Patent GB-1298834-A (GB)
Title: Improved method of and apparatus for the biological treatment of wastewater
Inventor: TORPEY WILBUR NATTAN
IPC: C02F3/08
Filed: 1969-12-04
Abstract: 1298834 Treating waste water AUTOTROL CORP 4 Dec 1969 [5 Dec 1968] 59302/69 Heading C1C [Also in Division B1] Waste water having a biological oxidation demand is treated in a tank provided with assemblies of discs 15 or other bodies, the discs of each assembly being mounted on a common shaft 14 arranged so that the discs project into the water and rotate at such a speed that the growth of aerobic biological slimes on them is encouraged. Below the biological treatment zone thus formed is a settling zone, which may be provided with baffles 20, and settled slime is removed, for example, by a sludge collecting mechanism 18, to a sump 19. The rotation of the discs sets up a circulation of water in the tank which is sufficiently small not to interfere unduly with the settling process. Excessive growth of slime on the discs may be prevented by periodically rotating them for short periods at a higher speed. The discs may be provided in the outflow side only of a secondary sedimentation tank. Reference has been directed by the Comptroller to Specification 1,172,913.
Patent GB-1336879-A (GB)
Title: Heating element with a high heat-flux
IPC: H05B3/42
Filed: 1970-12-17
Abstract: 1336879 Resistance heating elements STICHTING REACTOR CENTRUM NEDERLAND 17 Dec 1970 [17 Dec 1969] 60063/70 Addition to 1136368 Heading H5H A heating element of the type described in Specification 1,136,368 has a metal outer layer 3 shrunk on an insulating layer 2 of boron nitride or beryllium oxide shrunk on the resistance conductor 1, which is solid or tubular, the metal layer 3 and conductor 1 both being of austenitic stainless steel, nickel, chromium, vanadium, rhenium, tungsten or alloys thereof with or without molybdenum. A thermo-electric element 5 is fixed in a groove 8 in the metal jacket or layer 3 with a silicon-containing solder 7, the element 5 having a protective tube 6 of stainless steel, nickel, chromium, tantalum or alloys thereof surrounding it. The unprotected covering of element 5 is of stainless steel or a nickel alloy. Element 5 gives the temperature of layer 3 in heat transmission experiments and in fissile lattice testing of nuclear reactors operating with liquid metals.
Patent GB-1271710-A (GB)
Title: Treatment of exhaust gases from leaded motor fuels
IPC: B01D53/86
Filed: 1969-12-10
Abstract: 1,271,710. Alumina coated substrate. TEXACO DEVELOPMENT CORP. 10 Dec., 1969 [30 Dec., 1968], No. 60169/69. Heading B1E. [Also in Division F1] A catalytic alumina-coated structure comprises a substantially uniform film of alumina formed on a substrate by contacting the substrate with an aqueous solution of an alkali metal aluminate to form an adherent film of alumina trihydrate, separating the alumina coated structure from the solution and heating under calcining conditions for sufficient time to at least dehydrate the alumina trihydrate. After passing the gasses over the alumina coated structure of the invention they may be passed in contact with an oxidation catalyst e.g. Group VIII metals or Period 4 metals impregnated on the "bare" alumina structure. The substrate is preferably a metal, those specified being steel, stainless steel, alloy steel, iron, iron alloys, nickel, chrome-nickel alloys or titanium, but the substrate may be a refractory or ceramic, e.g. high melting glass, refractory metal oxides such as magnesia or silica, or refractory metal silicates or carbides. The configuration of the substrate may be balls, bars, chain, mesh, plates, saddles, sheet, tubes or wire, but it is preferred to use metal wool contained within a metal tubular casing. Sodium aluminate is the preferred reactant and it is preferred to calcine the alumina trihydrate to give gamma alumina.
Patent GB-1153710-A (GB)
Title: Agglomeration of Iron Oxide Material
IPC: C21B13/08
Filed: 1966-05-20
Abstract: 1,153,710. Apparatus for indurating pellets. ARTHUR G. MeKEE & CO. 20 May, 1966 [22 June, 1965], No. 60178/68. Divided out of 1,124,127. Heading F4B. Apparatus for making pellets from finely divided oxidic Fe material comprises a travelling grate on which green balls of the material are dried by hot gasses passing through the grate, a rotary kiln into which the balls are discharged from the grate and through which hot gases are passed, and a cooler in which the hardened balls (pellets) are cooled in the absence of air, the exhaust gases from the kiln either being passed directly to dry the balls on the grate after dust removal, or being passed in heat exchange with the gas supplied to the grate and then treated for dust removal. The balls may be heated at 250-800 F. on the grate, hot air being drawn from above, and then discharged into the kiln together with particles of coal or coke. Combustion gases from a gas or fuel oil fired burner may pass in countercurrent in the kiln and maintain a temperature of 1600-2500 F. The pellets may be cooled to below 300 F. in a rotary water jacketed cooler in an atmosphere containing CO 2 , CO, N 2  and inert gases carried over from the kiln. If the kiln exhaust gases are recycled directly they may be tempered with exhaust air from the drying zone; if they are passed in heat exchange with air, some of the air may be used as combustion air.
Patent GB-1356680-A (GB)
Title: Method of quenching dross
IPC: C22B21/00
Filed: 1971-12-31
Abstract: 1356680 Quenching dross ALCAN RESEARCH & DEVELOPMENT Ltd 31 Dec 1971 [8 Jan 1971] 61054/71 Heading C7D Dross formed on a molten metal (e.g. Al or alloys thereof) surface is removed from the surface and quenched by means of layers of a salt or salt mixture alternating in a container with layers of the dross. Suitably the dross layer may be up to 15 cm thick with a salt layer 2À5-5 cm thick, and the salt mixture may contain NaCl, KCl with optional additions of minor amounts of a fluoride (e.g. NaF or CaF 2 ). The quenching decreases oxidative losses of free metal in the dross. The metal may be recovered by the induction heating process of Specification 1337091.
Patent GB-1311019-A (GB)
Title: Copper-clad laminate and production thereof
IPC: H05K1/03
Filed: 1970-12-29
Abstract: 1311019 Laminates MATSUSHITA ELECTRIC WORKS Ltd 29 Dec 1970 [28 Dec 1969(4)] 61411/70 Heading B5N Copper clad laminates are made by superposing a base material (e.g. glass cloth or mat, asbestos sheet, synthetic fibre fabrics or mats, paper or cotton cloth) impregnated with a thermosetting resin which is a prepolymer of an unsaturated polyester and/or a prepolymer of a polydiallylphthalate, a copper foil on at least one surface thereof and between the base material and the copper foil a thermosetting adhesive comprising a curable epoxy resin and a curing agent selected from (a) compounds having at least one amino or imino radical and at least one allyl or vinyl radical or (b) aromatic polycarboxylic acids partially esterified with an unsaturated compound having at least one allyl, substituted allyl, vinyl or substituted vinyl radical; and then heating the laminated assembly under pressure to form a unitary copper clad structure. The adhesive may be applied as a varnish to the copper foil or it may be impregnated into a fibrous sheet material which is then dried and placed between the foil at the impregnated base. The curing agent is preferably used in amounts of 5 to 40 parts by weight of the epoxy resin. The thermosetting resin used to impregnate the base suitably comprises prepolymers having a melting point greater than 40 C., cross-linking agents of melting point greater than 40 C. and initiators. Several examples of suitable thermosetting resins and curing agents are specified.
Patent GB-1300570-A (GB)
Title: Method and apparatus for counting radiation damage tracks in sheet materials
IPC: G01T5/10
Filed: 1969-12-30
Abstract: 1300570 Counting radiation damage tracks ATOMIC ENERGY OF CANADA Ltd 30 Dec 1969 [18 Feb 1969 23 April 1969] 63264/69 Heading G4D An apparatus for counting radiation damage tracks in an insulating sheet 11 comprises a first electrode 2 which is substantially the same size as the sheet, a second electrode 4 insulated from the first, a thin metal sheet 12 which is placed over the sheet material and is held in electrical contact with the second electrode, a means, e.g. capacitor 6, for applying an increasing voltage across the electrodes, and an electrical impulse counter 8 connected to both electrodes and which counts the electrical discharges which pass sequentially through damage tracks of increasing resistance as the voltage applied across the electrodes increases and puncture the metal sheet 12 when a voltage is applied through an input terminal 10. The impulse counter counts the voltage pulses developed across a resistor 9. If the capacitance developed between the electrode 2 and the plate 12 is sufficiently large the capacitor 6 may be removed. In place of the metal sheet an aluminized polyester film may be used and other types of counter may be used, e.g. using the light emitted by the electrical discharges. The Specification states that circuits of various types, e.g. transistor circuits may be used to connect the capacitor to the source of high voltage.
Patent GB-685418-A (GB)
Abstract: 685,418. Selsyn machines. AKTIEBOLAGET BOFOHS. March 19, 1951 [March 21, 1950]. No. 0510/51. Class 35. In an A.C. or D.C. Selsyn machine having stator coils 2, 3 mounted in a ring-shaped yoke 1 and a rotor coil 8 carried by a non-magnetic carrier 6, harmonics are eliminated by means of oppositely disposed pairs of magnetic screws, e.g. 19, 20, passing through the stator polefaces and grooves 18, 23 in the pole-faces.
Patent GB-2005058-A (GB)
Title: Illuminated signal
IPC: G09F13/04
Filed: 1978-08-10
Abstract: An illuminated signal employing light conducting fibres has, between a transparent front pane and a holder for the ends of the fibres, a web with opaque walls perpendicular to the pane and surrounding each desired symbol. The arrangement is such that a symbol is displayed by turning off the light to the fibres associated with the symbol, and turning on the light to the fibres which surround it. <IMAGE>
Patent GB-784197-A (GB)
IPC: G05G21/00
Abstract: 784,197. Gearing for starting and stopping machinery; clutches; shaft couplings. WALDES KOH-I-NOOR, Inc. Dec. 29, 1955 [Dec. 31, 1954], No. 37250/55. Classes 80 (2) and 80 (3). Means for operating a clutch at repeated intervals within a selected number of revolutions of a driving-shaft comprises a series of balls of different diameters driven along a circuitous path, the larger diameter balls tripping the clutch operating lever. A driving shaft 14, which may also be driving a sewing-machine, is geared at a ratio of 12 to 1 to a shaft 29 to which is keyed a clutch disc 34 having facial projections 35. An aligned driven-shaft 30, driving a co-related mechanism such as means for applying fasteners, has keyed thereto a collar 37, grooved circumferentially at 40, and containing a spring-loaded clutch bolt 42 having a notch 48. A lever 50 actuated by energization of a solenoid 70 has at one end a cut-away portion 55 and an inclined surface 57, the width of the projection 56 being equal to the width of the notch 48, such that movement of the lever into the path of the bolt 42 in the groove 40 causes axial disengagement of the clutch bolt 42 from the disc 34 and prevents rotation of the shaft 30 by the abutment of the portion 55 with the side of the bolt 42. A sprocket 150 on the end of the shaft 29 drives a sprocket 87 rigid with an internally notched ring 91 rotatably mounted on a hub 94 secured by a set-screw 97 to a shaft 84. A spring-loaded detent 101 co-operates with the notches 105 in the ring 91 to provide a light drive between the sprocket and the shaft and to allow relative adjustment between them. The opposite end of the shaft 84 has keyed thereto two discs 116, 117 forming a ball circulating wheel having radial pockets of two diameters 125, 126 which allow full entry into the pockets 125 of smaller diameter balls 128 but not of the larger balls 129. The wheel 116, 117 rotates in an opening in two plates 107, 108 between which is a partition 113, -grooves in the plates 107, 108 and the partition 113 form passageways 130, 131 for the balls from holes 132, 133 in a block 134. The holes 132, 133 are connected by a loop tube 136 having an extension 137, closed by a plug 139, to allow admission or alteration of the sequence of the balls circulating in the tube. A plunger 160'is arranged to be moved downwards by the passage of a larger ball and to operate a micro-switch 165 to energize the solenoid 70 to engage the clutch for one revolution. In modifications the loop tube 136 or its equivalent is made longer by the introduction of a spiral path, and the tube may be suplied with pressure fluid at the upper loop to assist the movement of the balls.
Patent GB-2008547-A (GB)
Title: Presser foot for sheet feeder
IPC: B65H1/08
Filed: 1978-11-23
Abstract: There is disclosed a feeler foot for a sheet feeder in printing and paper processing machines with drive elements for the realisation of periodic pivotal and vertical motion, the feeler foot comprising a pneumatic displacing unit (6; 7; 8), the displacing part (7) of which is connected with the feeler foot (5), and slides in a housing (6) fixedly mounted on a pivotable feeler foot lever (9). Preferably, a throttle (13) for variation of the pressure and/or a throughflow quantity of the pneumatic drive medium is connected upstream of the pneumatic displacing unit (6; 7; 8). <IMAGE>
Patent GB-2015795-A (GB)
Title: Glass breaking detecting device
IPC: G08B13/04
Filed: 1978-12-18
Abstract: A detection device for sensing the breakage or attempted breakage of a window pane is disclosed that includes a piezoelectric crystal (1) connected to the pane to pick up vibrations in the pane. The induced polarisation of the crystal is detected by an electrical circuit (2) which operates both an alarm (3) common to a number of these devices and an indication device (17). The alarm (3) operates for a predetermined period (determined by tumer 6) only leaving the indication device (17) to record which of the devices has operated. <IMAGE>
Patent GB-2040033-A (GB)
Title: Cooling arrangements
IPC: F25D1/00
Filed: 1979-01-12
Abstract: The invention is concerned with a cooling arrangement suitable for cooling telecommunication equipment 2 at an unattended microwave relay station located in desert or like region where there is a large difference between the maximum day-time temperature and minimum night-time temperature. The cooling arrangement includes an outdoor heat exchanger 6 disposed outside and above a shelter 3 accommodating the equipment 2, an indoor heat exchanger 7 disposed in the shelter 3 and a heat storage means 5 disposed at an intermediate level between the heat exchangers 6 and 7. A condensable refrigerant circulates naturally by gravity. When the outdoor temperature is low, most of the cooling energy absorbed by the outdoor heat exchanger 6 is stored in the heat storage means 5, while the remaining part is used for cooling the equipment 2, whereas when the outdoor temperature is high, the cooling energy is released from the heat storage means 5 effectively to cool the equipment 2. The two heat exchangers may be interconnected to form a heat pipe. <IMAGE>
Patent GB-2015617-A (GB)
Title: Joint covering strips
IPC: E04F19/04
Filed: 1979-02-09
Abstract: A floor covering 2 of synthetic plastics has one edge 4 trimmed back parallel to an adjacent wall 6 to form an abutment for one edge of a resilient joint strip 10, the other edge of which lies against a flange 8 of a rigid strip 7 fixed to the wall. The strip 10 is held by compression between the edge 4 and the flange 8 so that the exposed surface is concave. <IMAGE>
Patent GB-2042023-A (GB)
Title: Method of and apparatus for surveying a mining installation
IPC: E21D23/00
Filed: 1979-02-13
Abstract: A number of mine roof supports (1) along a coal face are provided with radiation sensors (16) for sensing radiation deriving from rock strata above the coal seam. From attenuation of the radiation the thickness of roof coal (4) left by a mining machine can be determined. <IMAGE>
Patent GB-2022179-A (GB)
Title: Condensation drain and ventilator
IPC: E06B7/14
Filed: 1979-03-12
Abstract: The invention provides means for running off liquid and/or ventilating the window surface. A device at the bottom of the window comprising first and second elongate members 4, 5 in spaced relationship with the glass 8 allows condensation to be conducted to the exterior. The glass is supported on a block 6. At the top of the window members 11, 12 spaced from the glass permit passage of air across the edge of the glass. <IMAGE>
Patent GB-2047933-A (GB)
Title: A Vehicle or Container Identification System
IPC: G06K7/10
Filed: 1979-04-11
Abstract: A vehicle or container identification system comprises code bearing carrier mounted on and spaced from a respective vehicle or container (12) and a hand holdable code reader (10) having a gap (16) which permits location of the code bearing carrier in the gap. The carrier (11) is provided with an arrangement of through apertures defining, by their position on the carrier, coded information. The code reader has a row of radiation generators (22) disposed at one side of the gap and a row of radiation detectors (26) disposed at the other side of the gap and arranged to receive radiation from the radiation generators to detect the presence or absence of an aperture as a function of received radiation and for providing an output signal code related to the position of the apertures in the carrier which is being scanned. <IMAGE>
Patent GB-2019991-A (GB)
Title: A roof and/or wall construction for heat treatment chambers
IPC: F27D1/02
Filed: 1979-04-30
Abstract: A roof and/or wall construction for heat treatment chambers (15) comprising rectangular plates (19) carried by carrier bricks (13) connected to the structure of the heat treatment chamber (15) the plates (19) having a central opening (21) into which the carrier brick (13) fully penetrates so as to support the plate (19) on a part (16) of the carrier brick (13) of enlarged cross- section and the end of the carrier brick (13) being proud of the side of the plate (19) facing into the chamber (15). <IMAGE>