baber/WOPTO huggingface dataset:
Patent GB-1223627-A (GB)
Title: Variable level detector network having constant percentage hysteresis
IPC: G01R19/04
Filed: 1968-12-09
Abstract: 1,223,627. Transistor threshold circuit. BENDIX CORP. 9 Dec., 1968 [18 Dec., 1967], No. 58345/68. Heading H3T. A level detector network has an amplifier 8 whose output is saturated at a positive level when an unknown signal received from a source 2 at one input 6 is less than the signal level at a second input 12 derived from a reference source 4, and is saturated at a negative level when the unknown signal exceeds the level at 12, thus turning on a switch such as a transistor 36 to earth a resistor 42 and consequently reduce the voltage at 12. The unknown signal must fall below this reduced voltage at 12 for the amplifier output to go positive again, and hence a hysteresis is introduced. The reference source is connected to input 6 through a resistor 14 which with the resistor 42 defines the percentage hysteresis, namely the change in voltage at 12 divided by the reference voltage ER, as the ratio of the resistance of 14 to the sum of the resistances of 14 and 42. The percentage hysteresis is therefore consant. The resistor 10 between the unknown signal source and the input 6 is matched to resistor 14 according to which of the changeovers of the amplifier output is required to be the more accurate. The amplifier output 30 is connected through a resistor 46 and a limiting diode 48 to a logic device 44 which may be part of an aircraft navigation computer.
Patent GB-1424520-A (GB)
Title: Method for the manufacture of matrix element covered reinforcement  fibres for use in the production of a composite body
IPC: D06M11/78
Filed: 1972-12-18
Abstract: 1424520 Coated products MASCHINENFABRIK AUGSBURG-NURNBERG AG 18 Dec 1972 [18 Dec 1971] 58406/72 Heading B2E [Also in Division C7] Reinforcement fibres covered with a chemical element, for use in the protection of a fibre-reinforced composite body having a matrix comprising said chemical element, which comprises activating the surface of an electrically conductive fibre-reinforcement material in a liquid medium by generating on the surface of the material by an electrochemical process chemical groups capable of binding said chemical element, the electric current required for the generation of the chemical groups being applied to the fibres across the liquid medium, immersing the surface-activated fibre-reinforcing material in a solvent containing a chemical compound containing said element and decomposing the chemical compound to deposit the said element thereof on the surface of the fibre-reinforcing material to become bound thereto in a quantity sufficient to form all or part of a matrix. The remainder of the matrix material may be applied to the surface of the fibre-reinforcing material in a subsequent working step. The element may be a metal or metalloid such as aluminium, titanium or silicone. The compound may be an aluminium trialkyl. The solvent may be hydrocarbon or the surface activation may be carried out in an aqueous electrolyte medium of an oxidising compound, sulphuric acid or sodium azide. The activation may also be effected in a liquid medium such as liquid ammonia, sulphur dioxide, hydrogen cyanide, hydrogen fluoride, nitrosyl chloride or dinitrogen-tetroxide. The chemical group applied to the surface of the reinforcing medium may be hydroxyl, carbonyl, carboxyl, lactone, amino, imino, nitro, sulphone, nitrite, azide, isocyanate, sulphonic acid or a halide group. The fibres, which may be of carbon, may be in the form of single filaments, strands, webs, fabrics or spun material. In an exemplified method a vessel containing an electrolyte solution is divided by a partition into two chambers which are separated electrically except for an aperture of sufficient size only to allow passage of the fibres. Immersed in each of the chambers are two open-ended cylindrical tubular wire gauze electrodes which serve to supply electrical current. The fibres to be activated are conveyed centrally through the cylinders and the aperture, passing over deflector pulleys. Electrical current is passed through one wire gauze electrodes to the fibres through the solution and from the fibres to the other wire gauze electrode and again through the solution. The fibres are drawn continuously through the arrangement. Electrochemical processes operate on the fibres to generate chemical groups which enable a union to be achieved for the embedding element to be applied subsequently.
Patent GB-1455590-A (GB)
Title: Process for the production of metals
IPC: C22B3/00
Filed: 1973-12-20
Abstract: 1455590 Metal oxides or hydrides by reduction in organic media SHELL INTERNATIONAL RESEARCH MAATSCHAPPIJ BV 20 Dec 1973 [22 Dec 1972] 59102/73 Heading C1A [Also in Division C7] Metal values in the form of oxides or hydrides are recovered from liquid organic media containing compounds and/or complexes of the metals by treatment with a reducing gas, wherein a fluidized bed of seed particles is maintained by passing the organic medium and/or the reducing gas at a suitable rate upwards through the bed. The seed particles are preferably metal powders of less than 1 mm. size; the preferred reducing gas is hydrogen. The metal values are those of Groups IB, IIB, IIIA to VIIA and VIII and the compounds and/or complexes may be salts of ternary carboxylic acids although other species are also exemplified. The metal-containing organic media may be the result of extraction of the metal values from aqueous solutions into the organic phase, or by direct contact of ores with the organic medium.
Patent GB-1406690-A (GB)
Title: Apparatus for removing water from fine particulate material
IPC: B01D33/11
Filed: 1972-12-22
Abstract: 1406690 Rotary filter with drying means COAL INDUSTRY (PATENTS) LTD 22 Dec 1972 59319/72 Heading BID [Also in Division F4] Coal slurry is picked up from a bath on an inward flow rotary filter drum or array of filter discs and carried thereon through a steam hood 4 to dry the coal, and the temperature of filtrate drawn out of the drum or discs above the slurry level is monitored and controls the steam supply to avoid wastage. The drum or discs are divided internally into sectors which are successively connected through zones 40-43 of valve 39 and flexible pipes 44, 46 with suction source 45 (zones 40, 41), atmosphere (zone 43) and reverse flow air supply (zone 42). Mercury in steel thermometer 62 extends into zone 41 of the valve, where filtrate drawn from sectors above the slurry level is collected, and is connected to temperature recorder 65 which controls main steam valve 27 via pneumatic signal line 66. The signal is cut by valve 67 if pressure monitor 72 detects a loss of suction in line 45, thus closing valve 27 if the filter drum/discs or coal coating thereon break. Meter 11 monitors the steam flow and cuts the supply to individual axially spaced sectors of the hood if the total flow is insufficient to dry all the coal layer. The reverse flow air supply to zone 42 of valve 39 is through pneumatically controlled valve (55), which is opened briefly, as each sector of the drum/discs moves wholly into the blow-off zone, by a pneumatic valve (47) controlled by a rotary disc (49) geared to the drum/discs. This action and scraper blade (61) removes the dried coal which falls onto a belt (59) whence it is removed by a reciprocating blade (60) (Fig 1 not shown). The flexible pipes (44, 46, 56) allow some angular adjustment of valve 39 to vary the positions of zones 40-43. Reference has been directed by the comptroller to Specification 1096164.
Patent GB-1411408-A (GB)
Title: Decoder for use in sq matrix fourchannel system
IPC: H04H20/89
Filed: 1972-12-27
Abstract: 1411408 Quadraphonic decoders SANSUI ELECTRIC CO Ltd 27 Dec 1972 [30 Dec 1971 30 Nov 1972] 59619/72 Heading H4R In a quadraphonic decoder having two inputs and four outputs, two matrixing circuits derive sum and difference signals from the two inputs, the output of one matrixing circuit is shifted in phase relative to the other and the shifted and said other output are combined in two different ways to produce two decoder outputs. As described the decoder is for use in the SQ system and is said to improve separation between the front and rear speakers. In one embodiment shown the inputs L and R are passed through circuits 7B and 7C (which produce zero phase shifts at a particular point in the audio frequency range, possess identical non-linear frequency/phase shift characteristics and are provided only to compensate for the non-linear characteristic of a phase shift circuit 7A) to a circuit 5 which produces a difference signal and are fed directly to a summing circuit 6. The output of circuit 6 is at 7A delayed in phase by 90 degrees relative to the outputs of circuits 7B and 7C and combined subtractively and additively at 8 and 12 to produce right and left rear speaker outputs RL and RR. The front speaker signals are derived from the outputs of circuits 7A and 7B by further adding and subtracting circuits 25 and 26 and combining circuits 31 (subtractive) and 28 (additive). Any phase difference between the inputs L and R is detected by a control unit 35 controlling variable gain circuits 27 and 34. If the phase difference is less than 90 degrees the gain circuit 27 is adjusted to unity gain while the gain circuit is adjusted to lower gain which is zero at 0 degree phase difference this corresponding to a front centre sound. Similarly if the phase difference is more than 180 degrees the gain circuit 34 is adjusted to unity gain and the gain circuit to lesser gain, zero at 180 degrees which corresponds to a rear centre sound. The variable gain circuits 27 and 34 may each include a transistor (Fig. 11, not shown) the emitter resistor of which is shunted by a field effect transistor functioning as a variable resistor.
Patent GB-1365100-A (GB)
Title: Method of removing fragments accumulated in fluidized beds
IPC: B03B4/00
Filed: 1971-12-29
Abstract: 1365100 Removing fragments from fluidized beds NIPPON KOKAN KK and D KUNII 29 Dec 1971 [28 Dec 1970] 60587/71 Heading B2H ,  In a fluidized bed process in which hot gas is passed upwardly through the bed, fragments, e.g. of composite pellets composed of iron ore fines and a reducing agent, are removed from the bed by allowing the fragments to flow into an overflow pipe, the inlet of which is arranged near the top surface of the bed, the fines produced by abrasion in the bed, being entrained in the hot gas. In Fig. 1, a reaction vessel 1 contains a fluidized bed 12 through which hot gas is passed upwardly. Unreacted pellets are fed to the bed from a hopper 5 by means of feed means 6. During fluidizing, fine particles of ore produced by abrasion in the fluidized bed are removed by the hot gas flow in the direction of the arrow. Fragments of the pellets, produced by thermal or mechanical shock and too large to be removed by the gas flow, accumulate in the upper part of the bed and are removed continuously through an overflow pipe 7 provided with a control valve 8 and pass to a receiver 9. In a modification, the pipe 7 incorporates a valve arranged at its inlet so that removal of the fragments can be effected as and when necessary. In a further modification, the overflow pipe with a closable inlet valve projects through the wall of the vessel into the upper part of the bed. In a still further modification, the overflow pipe, again with a closable inlet valve, is arranged axially within the reaction vessel.
Patent GB-1329148-A (GB)
Title: Timepiece escapement
IPC: G04B15/12
Filed: 1970-12-29
Abstract: 1329148 Clocks and watches BUNKER RAMO CORP 29 Dec 1970 [2 March 1970] 61644/70 Heading G3T In a pin pallet escapement, a pallet lever 40' pivoted at 45 has an aperture 63 defining abutment arms 60, 61 which co-operate with a pillar post 14 to limit excessive oscillation of the lever 40' and thus protect pallet pins 46. The lever 40' normally oscillates through an angle # and the aperture 63 is so arranged that the lever travel in either direction cannot exceed the angle # by more than the subtended angle of a pin 46. The possible deflection of a pin 46 is thus limited to one pin diameter. A portion 90 of the lever periphery is so shaped that at no time does it extend beyond the outlines of frame plates 12.
Patent GB-628592-A (GB)
Abstract: 628,592. Valve accessories. TODD, B. J., and TURNER, R. E. Oct. 12, 1945, No. 8263/48. Convention date, Sept. 10, 1945. Divided out of 628,538, under which a Specification was laid open to inspection under Sect. 91 of the Acts, April 13, 1946. [Class 135] A liquid-discharge control valve comprises a spring-loaded valve member 1 having a seat 5 coincident with the point of exit of liquid from the valve housing to minimize dripping, and to provide line contact between the valve member and its seat. The valve member is tapered towards its lower end so that any liquid which may run down it after closure, or when the valve is slightly open, concentrates and drips from the valve member at one point.
Patent GB-1255379-A (GB)
Title: Improved process for producing cyclododecene
IPC: B01J31/24
Filed: 1969-12-29
Abstract: 1,255,379. Cyclododecene. TOAGOSEI CHEMICAL INDUSTRY CO. Ltd., and A. NISONO. 29 Dec., 1969 [26 May, 1969], No. 63146/69. Heading C5E. Cyclododecene is produced by liquid phase selective hydrogenation of 1,5,9-cyclododecatriene in the presence of (1) a catalyst complex comprising a cobalt carbonyl and a tertiary phosphine PR 3  in which the R's are the same or different alkyl or cycloalkyl groups, and (2) at least one mole of carbon monoxide per gram atom of cobalt present, the amount of carbon monoxide being such that its partial pressure is less than 4 kg./cm<SP>2</SP>.
Patent GB-706829-A (GB)
Abstract: 706,829. Candle holders. PEREZ, M. June 13, 1952. No. 15003/52. Class 75 (1) A candle holder provided with means for fixing it to a Christmas tree, cakes &c. is made of plastic material and comprises an internally stepped socket for receiving candles of various thicknesses. Fig. 1 shows a socket 1, having internal steps 3 and an external brim 2, and carried by or formed integrally with a forked member 4 having teeth 5 for securing the holder to the branch of a tree. Alternatively the holder may have a socket in the form of a flower, having a brim formed as leaves 6, Fig. 3, and a stem 7 which may be inserted directly into the top of a cake or fitted into a hole in a serrated blade 8 for insertion into the side of the cake.
Patent GB-744945-A (GB)
Abstract: 744,945. Sparking plugs. HE IN, W. Sept. 2, 1953 [Sept. 12, 1952], No. 24241/53. Class 7(4) In a sparking plug having a chamber 4 within the plug body 1 and a centre electrode 2 which passes through the chamber into a central opening 7 in the end wall of the chamber, wherein the opening 7 is in the form of a nozzle tapering towards the chamber, and the co-operating end of the electrode 2 is of conical form and tapers in the direction opposite to that of the opening 7, orifices 5 are disposed about the latter and directed towards the electrode 2. The end wall has the shape of a truncated cone.
Patent GB-2022912-A (GB)
Title: Treatment of irradiated nuclear fuel material
IPC: G21C19/42
Filed: 1978-06-05
Abstract: Nuclear fuel elements which are clad in magnesium alloy are stored under water in skips 6 before reprocessing. To facilitate reprocessing any corrosion products are removed from the fuel elements by placing the skip in a rotatable container 17 having a cover 20 secured in place by hydraulic rams 21. Water enters the container 17 through hollow shafts 18 which are supported in bearings 19 in the wall of an outer container 12. Preferably water only enters the container 17 during that part of each revolution during which the container approaches the position in which the cover 20 is uppermost. On further rotation water and corrosion products are poured from the container 17 into the outer container 12 and are pumped away. <IMAGE>
Patent GB-2024276-A (GB)
Title: Withdrawing wire from an annular container
IPC: B65H49/02
Filed: 1978-06-29
Abstract: Risk of breakage of wire 15 being withdrawn from an annular container, especially when the container is less than half full, is substantially reduced by a collar 6 which encircles an inner wall 5 of the container and has a diameter greater than the inner wall but less than the boundary wall 2 of the container and which is so supported by wire W in the container at a constant distance above the uppermost turn of wire that the collar moves downwardly with respect to the inner wall as the amount of wire is reduced. In the event of a tangle in the wire, wire being withdrawn passes up the inner wall and is deflected outwardly by the collar 6 to disentangle the wire. <IMAGE>
Patent GB-2002009-A (GB)
Title: >Radiation curable coating composition
IPC: C08F2/00
Filed: 1978-07-11
Abstract: The composition is produced by the reaction of poly(alkyleneoxy) polyol or polyester polyol, organic diisocyanate, hydroxyallyl acrylate, at a temperature of from about 30 DEG C to about 80 DEG C, wherein for each hydroxy equivalent in the polyol, 2.5 to about 8.0 equivalents of organic diisocyanate and 1.5 to about 6.0 equivalents of hydroxyalkyl acrylate is reacted.
Patent GB-2025790-A (GB)
Title: Toys and Games Using Super- hydrophobic Surfaces
IPC: B05D5/08
Filed: 1978-07-18
Abstract: A toy, game or other play device wherein a trackway, slide, maze or other play surface is coated with super-hydrophobic material that is highly water repellent, whereby a drop of water applied thereto forms into a ball that can then be manipulated by a player to carry out predetermined play activities. Alternatively, a tiny vehicle or other toy body having a hydrophilic coating thereon may be wetted with water and placed on the super- hydrophobic surface whereby the body slides over the hydrophobic surface with substantially no friction. <IMAGE>
Patent GB-2027243-A (GB)
Title: Priority vehicle control of traffic signalling system
IPC: G08G1/087
Filed: 1978-07-27
Abstract: The system consists of a detector which determines the direction of approach and checks the signal pattern characteristics and repetition rate characteristics of audible warning signals emitted by the priority vehicle against stored characteristics. A predetermined degree of coincidence over three to four cycles of the warning signal is required before priority of passage is given.
Patent GB-2007813-A (GB)
Title: Method and apparatus for improved furnace heating of metal billets
IPC: C21D9/00
Filed: 1978-10-27
Abstract: Apparatus for heating metal billets (27) comprises two or more tracks disposed within one of more furnaces (4), each track supporting a row (12) of billets, pusher means (19) for moving the billets in the row from the entrance end to the exit end of the furnace, and sequencing means arranged to operate the pusher means (19) so that billets are discharged, one from each track, track- by-track in regular sequence.   <IMAGE>
Patent GB-2045832-A (GB)
Title: Stilts
IPC: E21D11/18
Filed: 1979-02-27
Abstract: A mine-roof support includes at least one extendable stilt (14). The stilt contains load-bearing dry solid fluent material (16) and extension is facilitated by flow thereof between two of its parts in one direction only. Specifically, inner and outer (20) cylinders contain sand with a one-way piston valve washer (26, 28) between them to allow the sand to drop past it as an arch or other support is raised but will then block it to prevent retraction of the stilt. <IMAGE>
Patent GB-2016251-A (GB)
Title: Agricultural machinery rotor
IPC: A01B33/08
Filed: 1979-03-12
Abstract: A rotor for agricultural machinery, particularly rotary hoes, has spaced discs 12 along a rotor shaft 13. Blades 16 extend between adjacent pairs of discs and the blades are inclined at an acute angle to the radial direction. The rotor also includes curved blades 14. <IMAGE>
Patent GB-2045597-A (GB)
Title: Orthopaedic shoe and kit
IPC: A43B7/00
Filed: 1979-03-16
Abstract: An upper unit 1 comprises an upper 2 and a mid-sole 3. An intermediate unit 8, between the upper unit 1 and a sole-and-heel unit 11, has a peripheral lip 9 for locating the mid-sole 3. Recesses 16, 17 in the units 8, 11 define a through- hole 14 occupied by a caliper stub 12 and/or a plug 13. <IMAGE>
Patent GB-2045135-A (GB)
Title: Forming dies and methods of forming tubular fittings
IPC: B21D7/08
Filed: 1979-04-06
Abstract: A composite die for forming an elbow from a straight tube pushed therethrough comprises a tubular inlet guide section 28, a swaging section 30 in the form of a truncated cone connected and opening at the large end to one end of the section 28 and arranged so that the tube while pushed therethrough is subjected to circumferential swaging forces varying from a maximum at one location on the circumference to a minimum value at another opposed location on the circumference and is subjected to an offset of die forces producing a force moment, to cause bending of the tube about the location subjected to the minimum swaging forces, partial forming of the elbow and reduction in tube diameter, and a tubular bending section 32. There may also be a second swaging section 34 and a sizing section 36. <IMAGE>
Patent GB-2019917-A (GB)
Title: Process for hydrophobing paper and cardboard by applying wax dispersions
IPC: D21H21/16
Filed: 1979-04-20
Abstract: Paper and cardboard are rendered hydrophobic by the addition of a wax dispersion and an aqueous solution of a polypiperidine halide as a fixing agent to the pulp from which the paper and cardboard are formed, the pulp having a pH which is either weakly acidic, neutral or alkaline.
Patent GB-2030958-A (GB)
Title: Reclosable cross-bottom sack
IPC: B65D83/08
Filed: 1979-08-29
Abstract: A reclosable cross-bottom sack is provided over the cross-bottom with a cover sheet having an incision and lines of weakness. A flattened tubular plastics emptying nipple for the sack is folded and cut at one end to define flaps, extends through the incision and is secured to the sheet by its flaps to lie between the cross-bottom and the cover sheet.
Patent GB-2030757-A (GB)
Title: An electric cable
IPC: H01B7/282
Filed: 1979-09-04
Abstract: An electric power cable or transmission cable e.g. telephone cable, includes conductive metal wires covered in insulation 1 and a protective layer 2 constituted by a tape applied longitudinally, the overlapping edges 3 and 4 of the tape being bonded by a strip of adhesive compound 5 so as to constitute a sealed tube. The adhesive compound melts and sets suddenly and cools very rapidly. The tape may be polyester, polypropylene, paper or aluminium. The cable also has a screen 6 of aluminium coated with polyethylene and an extruded sheath 9 of polyethylene. <IMAGE>
Patent GB-2032509-A (GB)
Title: Decking System
IPC: E04F15/024
Filed: 1979-09-14
Abstract: A decking system comprising a plurality of decking panels (1, 2) which have a self levelling arrangement of a flange (15) extending in a plane parallel to the top surface of each panel from the lower edge of the panel, the adjacent panel seating on the flange (15) so that the top surfaces of adjacent panels are level, bolts (17) or other securing means may be provided to connect adjacent panels and panels may be secured to 'I' beams 10 or other bearing members by means of 'J' bolts 21 hooked through holes in the underside of the panels. <IMAGE>
Patent GB-2035980-A (GB)
Title: Purifying Waste Gases Containing Nitrous Gases
IPC: B01D53/56
Filed: 1979-11-01
Abstract: A method of cleaning waste gases containing nitrous gases, comprises treating the waste gases with a wash liquid containing approximately 0.5 to 60 grams of a manganate VI and approximately 0.5 to 60 grams of a permanganate per litre of the washing liquid while maintaining the pH of the liquid at at least 13.