baber/WOPTO huggingface dataset:
Patent GB-1234495-A (GB)
IPC: B01D35/16
Filed: 1969-08-22
Abstract: 1,234,495. Filter. H. C. RADINGER. 22 Aug., 1969, No. 41923/69. Heading B1D. A liquid filter comprises a housing 1 enclosing a hollow shaft 2, inclined at 30 to 60 degrees to the vertical, on which are mounted filtering discs 6, 7 with upper pervious surfaces, oriented at 30 to 60 degrees to the shaft axis, so that filtering is performed with the discs horizontal and the shaft then is rotated 180 degrees to orient the discs vertically (Fig. 4, not shown) facilitating cake removal therefrom. A bar 11 strikes a stop 12 at the end of the rotation to shake the discs, after which stop 12 may be removed and further complete turns of the shaft cause helical scraper 8 to push filter cake into sump 5 and through outlet 16. Inlet 14 is for filter aid slurry and liquid to be filtered, and air vent 17 facilitates filling and draining of slurry and liquid and introducing cake-drying gas. Filtrate outlet 15 may be used for introducing liquid or gaseous backwashing fluid. When residual liquid is drained after filtering, vent 17 may remain closed so that air is sucked into outlet 15 to loosen the cake. Fig. 4 (not shown) illustrates a housing with an enlarged sump and swilling sprays (13). Most of the discs 6 are circular, but end discs 7 are semi-circular (Fig. 3, not shown). Shaft 2 is turned by electric, pneumatic or hydraulic means. (For Figure see next page)
Patent GB-1250082-A (GB)
IPC: B66C23/00
Filed: 1969-11-07
Abstract: 1,250,082. Counterbalancing. CONCO Inc. 7 Nov., 1969 [19 March, 1969], No. 54677/69. Heading B8B. A load balancer assembly comprises a counterweighted parallel linkage 50, 54, 55, 65 wherein the load carrying arm 54 of the linkage includes an offset portion 81 to facilitate placing of a load 73, a force applying means being associated with the linkage arm 55 to counterbalance any force tending to cause movement of the arm 54 due to the presence of the offset portion thereof. The assembly which is mounted between a pair of plates 24, is supported on arms 15 depending from an overhead trolley 11, the arm 50 being pivoted at 51 to the arms 15 and carrying a counterweight 52, the plates 24 being pivoted at 23 to a fluid ram 21 pivotally connected to the arms 15. Slots 34, 59 in the plates 24 engage rollers 30, 32 on the arms 15, and rollers 58 on the linkage arms 55, 65, whereby the position of the parallelogram linkage is controlled by movement of the ram 21. A cable extending longitudinally from its connection with the arm 55, to a spring drum mounted on one of the plates 24, applies a force to the linkage to balance the offset loading effect of the arm 54.
Patent GB-1252161-A (GB)
IPC: B64C23/00
Filed: 1968-10-16
Abstract: 1,252,161. Aerofoils. Z. HERPAY. 16 Oct., 1968, No. 48969/68. Headings B7G and B7W. [Also in Division F1] An aerofoil of high lift and low drag coefficient comprises a plurality of span-wise blade elements mounted in spaced apart and overlapping relationship and secured on their undersurfaces on a plurality of V-shaped rib elements, whereby air or gas is channelled between adjacent blade elements towards the aft part of the aerofoil with predetermined pressures and accelerations. The blades may be rigidly mounted on the ribs. If desired adjacent overlapping blades may be slid relative to one another and the ribs to adjust the surface area and the camber of the aerofoil. In an alternative embodiment the blade and rib elements are thin and movable to provide a multi-slotted flexible aerofoil of variable camber. Where the aerofoil is part of a rotor the V-ribs are arcuate and all have as their centre of curvature the centre of rotation of the aerofoil. If desired engines may be so mounted that intake air or exhaust gas is caused to pass between adjacent blade members. An embodiment is disclosed where the V-ribs are in the form of suspended fuselages. The aerofoil may be used in fan, compressor, stator or turbine blade structures.
Patent GB-1256678-A (GB)
IPC: C07D277/72
Filed: 1970-07-21
Abstract: 1,256,678. Preparation of 2-mercaptobenzthiazole. FARBENFABRIKEN BAYER A.G. 21 July, 1970 [14 Aug., 1969], No. 35185/70. Heading C2C. The invention relates to a process which may be continuous or batch for the recovery of 2-mercaptobenzthiazole from a. crude melt comprising aniline, sulphur and carbon disulphide in addition to 2-mercaptobenzthiazole, wherein the melt is dissolved in a solvent, e.g. an aliphatic, cycloaliphatic or aromatic hydrocarbon having a boiling point from 60 to 160 C., preferably o, m, or p-xylene and wherein the 2-mercaptobenzthiazole is extracted from the resulting solution with a dilute aqueous alkali metal hydroxide solution and precipitated by acidification. Examples are described with reference to a flow sheet.
Patent GB-1257696-A (GB)
IPC: A23L13/50
Filed: 1969-08-21
Abstract: 1,257,696. Cooked poultry product. VISKASE Ltd. 13 Nov., 1970 [21 Aug., 1969], No. 41825/69. Heading A2B. A cooked poultry meat product is prepared by applying an edible metallic salt, preferably including a polyphosphate, to the pieces of raw meat, for example by immersion in an aqueous solution thereof, preferably followed by draining, agitating the meat pieces until an exudate of salt-soluble protein is formed on the surfaces thereof, pressing the pieces together, and cooking, for example packed into a fibrous casing, wherein sufficient moisture adsorbing starch is added either before or during the agitation to absorb moisture from the pieces during cooking to prevent any water cook-out loss. Ground skin may be added during the agitation, preferably after the exudate is formed and before the starch is added. The starch may be wheat starch or wheat flour wherein the α-amylase has been deactivated.
Patent GB-1258442-A (GB)
IPC: H04L25/24
Filed: 1969-01-29
Abstract: 1,258,442. Transistor switching circuits. HASLER A.G. 29 Jan., 1969 [5 Feb., 1968], No. 5039/69. Heading H3T. In a circuit in which an input keying waveform controls the polarity of a D.C. output voltage, e.g. a telegraph relay, the keying waveform controls the polarity of pulses applied to primary winding of a transformer or the supply of pulses alternatively to the primary windings of two transformers and the secondary winding or windings are connected through a resistor or resistors to the base-emitter paths of transistors having rectifiers in the emitter-collector paths. In Fig. 1, when the input signal 1 is " up " gate 5 passes relatively high frequency pulses 2 to transformer 9. Alternate half-cycles provide base current for the transistor 11 so that rectified current from the transformer secondary flows through the emitter-base path to the output. When the input signal 1 is down the pulses 2 pass through gate 4 to provide in a similar manner opposite polarity current to the output. Diodes 16, 17 connected as shown or to the collector protect the transistors when supplying a capacitive load. In Fig. 2 (not shown), a full wave rectifier replaces 16 and 17. In Fig. 3 a rectangular wave 22 of unequal mark and space is used and it appears in the secondary with the narrower portion of higher amplitude than the wider. The narrower portions but not the wider are of sufficient amplitude to break down one or other of the zener diodes 36, 37 depending upon signal 21. If for example 38 breaks down, base current flows through resistor 32 to transistor 31 and thus collector current flows to the output terminal 35, the path being completed by the load connected to 34 and 35 and by diode 40. A diode 38 blocks the path through the collector-base circuit of transistor 30. If the transistors have a base emitter path operable in the reverse direction as a zener diode, the zener diodes may be omitted.
Patent GB-1258584-A (GB)
IPC: F23Q1/06
Filed: 1969-03-24
Abstract: 1,258,584. Ignition control for burners. ELECTRIC CONSTRUCTION CO. Ltd. 24 June, 1970 [24 March, 1969], No. 15249/69. Headings F4F and F4T.  An ignition control system for a gas burner fed with an induced fuel gas/air mixture from a centrifugal fan, includes an ignition unit 13, a solenoid valve, preferably controlled by an AND gate 23 and having switch'15 energized by a thyristor, and a circuit to hold the valve open only in response to the simultaneous receipt of two signals; the first via an OR gate 27 from a flame sensor or an ignition timer 26, and the second from a fan-draught sensor which during an initial starting period is held off by a pretimer 21, such that if the fan or the flame fails the burner will shut down. The fan-draught may be sensed by its cooling effect on a preheated thermistor. When the system is switched on ignition timer 26 will feed the AND gate 23 but the pretimer 21 will inhibit any signal from the fan-draught sensor until the rate of gas supply has built up, at which point the pre-timer shuts down and AND gate 23 receives two signals to open the solenoid valve. If ignition occurs the flame sensor supplies a signal to hold the valve open but if not, the ignition timer 26, and hence igniter 13, will shut-down after a predetermined ignition time.
Patent GB-1259224-A (GB)
IPC: H01P1/195
Filed: 1970-03-12
Abstract: 1,259,224. Ferrite phase-shifters. THOMSONCSF. 12 March, 1970 [20 March, 1969], No. 11822/70. Heading H1W. A latchable, non-reciprocal, ferrite phaseshifter comprises a zig-zag microstrip delay line mounted on a core of ferrite material which may be magnetized by a conductor extending through the material parallel to the plane of the line. In the embodiment of Fig. 7, the core consists of a rectangular torus 22 of ferrite having a conductive layer 33 on its interior surface and bearing on its exterior faces four zig-zag line conductors 11, 12, 13, 14 extending generally in the direction of the axis of the torus. A conductor 4 extending along this axis serves to control the state of magnetic remanence of the core 22 and hence the phase-shift provided by the delay lines. Other embodiments are described using two delay lines or a single delay line. In the latter embodiment a flattened circular ferrite torus is used. The control wire may carry digital pulse commands and by using n phase-shifters connected in cascade, a phase-shifter quantified to n bits may be obtained. A reciprocal arrangement may be obtained by connecting two phase-shifters in parallel paths between pairs of ports on respective ones of a pair of circulators such that signals propagated in opposed directions pass through different phase-shifters.
Patent GB-1266002-A (GB)
IPC: H01L21/3105
Filed: 1969-03-03
Abstract: 1,266,002. Semi-conductor device manufacture. RCA CORPORATION. 3 March, 1969 [20 March, 1968], No. 11096/69. Heading H1K. While a surface region of a semi-conductor body is being converted into an insulating layer, the body is heated in an atmosphere containing a hydrogen halide to getter detrimental metal impurities in the coating and body. In a typical example silicon wafers are first heated in a flow of oxygen or steam to form a thin genetic oxide layer, and then in nitrogen which has been bubbled through an azeotropic solution of hydrogen chloride maintained at 110 C. During gettering the oxide layer thickens and if desired the entire layer may be formed during heating in the gettering atmosphere. Finally the body is annealed by heating in hydrogen. Hydrogen bromide or iodide may be used instead of the chloride as may hydrogen fluoride if this does not attack the insulation used. Layers of silicon monoxide and/or nitride may be likewise treated during formation.
Patent GB-1266648-A (GB)
IPC: A23K1/00
Filed: 1970-08-26
Abstract: 1,266,648. Treating grain, seeds and forage to produce animal feeds. E. H. FULTS and G. E. SANKO. 26 Aug., 1970 [24 Sept., 1969], No. 41022/70. Addition to 1,245,830. Headings A2B and A2Q. Grain, seeds, or forage such as hay or alfalfa, are treated with an aqueous solution containing a lignosulphonate, an acid, and a wetting agent, so as to produce an edible product of enhanced nutrient characteristics. The product may be cooked under pressure, then either rolled and flaked, in the case of grain or seeds, or shredded, in the case of forage, to produce an animal feed or feed additive. Alternatively, the grain, seeds or forage may be stored for from 12 to 48 hours after the application of the solution and subsequently fed whole to animals without further processing. Preferably the lignosulphonate is present in approximately 10 to 50 per cent by weight, the acid in approximately 4 to 20 per cent by weight, the wetting agent in approximately 0.3 to 4 per cent by weight, and water in approximately 28 to 85.7 per cent by weight of the constituents. The lignosulphonate is selected from ammonium, sodium and calcium lignosulphonates, the wetting agent from the group consisting of alkyl-aryl sulphonates and ethylene oxide condensates, and the acid from phosphoric, which is preferred, hydrochloric, sulphuric, citric, acetic, butyric, levulinic, gluconic, lactic and propionic acids.
Patent GB-1288419-A (GB)
IPC: B30B1/18
Filed: 1969-09-26
Abstract: 1288419 Powder moulding press J HALLER 26 Sept 1969 47561/69 Heading B5A [Also in Division F2] In a press for compacting powders, e.g. of metal or nylon, the die 38 is mounted in a table 50 which is vertically displaceable, by a screw and nut mechanism 114, 118, independantly of lower and upper vertically displaceable telescoped punch assemblies 20, 22, to control friction of the powder at the die wall 36 by relative movement thereof with respect to the assemblies 20, 22 during compression. The press includes a frame comprising lower and upper structures 24, 26 which are interconnected by four hollow uprights 54, each containing a strain rod 52, and respectively supporting housings 64, 66 within which are located yollow coaxial cylindrical screw assemblies 16, 18 which actuate the punch assemblies 20, 22, and between which housings 64, 66 extend four guide rods 62 on which are vertically slidable the die table 50, and platens 58, 46 which respectively support the outer lower and upper punches 28, 40. The screw and nut mechanism which vertically displaces the table 50, comprises a pair of screws 114, each fixedly secured at one end to the table 50 and at the other end being displaceable in a socket 116, of a cylindrical housing 102, comprising part of the housing 66, by engagement at a plurality of balls 120 with a rotary nut 118 to which is drivingly secured a spur gear 124 and which is supported against axial displacement within the housing 102 between a lower roller thrust bearing 122 and an upper tapered thrust collar 126, a tapered roller thrust bearing 128, and a wear plate 130. Both spur gears 124 are rotated by engagement with a ring spur gear 134 which has drivingly secured thereto a hypoid ring bevel gear 136, both gears 134 and 136 being concentric with the vertical press axis 140, and the gear 136 meshing with a hypoid bevel pinion 138 mounted on an output shaft 98 of a variable speed gear-box 92, containing reversing magnetic clutches and which also serves to drive the upper punch actuating assembly 18. The gear-box 92 is driven by an output 90 of a lower magnetic clutch reversing gear-box 84, which is driven by an electric motor and also drives the lower punch. In operation, after filling the die 38 with powder from a filling shoe 68 supported on the table 50 and slidingly reciprocable thereover by a screw and nut mechanism, the lower assembly 20 is raised to a desired level of the lower punches and with a core rod 34 level with the upper table surface 70, whereafter the upper punch assembly 22 is lowered to compress the powder in the die 38, simultaneously with the screw and nut actuated downward movement of the die 38 with the table 50. After raising the upper assembly 22, the moulded article isejected either by raising the lower assembly 20 until the article is level with the upper table surface 70, or by retracting the punches 26, 30, 32 and the core rod 34 until their upper ends are level, whereupon the table is lowered until the surface 70 thereof is at the same level.
Patent GB-1288992-A (GB)
IPC: H01R12/51
Filed: 1970-06-22
Abstract: 1288992 Printed circuits WESTINGHOUSE ELECTRIC CORP 22 June 1970 30138/70 Heading H1R In a method of making printed circuits the conductors on each side of an epoxy glass board are connected together by coating the walls of an aperture in the board, firstly with a layer 30 of copper, nickel, palladium, silver or gold by chemical or electroless methods, secondly with an electroplated conductive layer 32 provided from a non-cyanide bath such as copper pyrophosphate, sulphuric or fluoroborate acid and thirdly with a layer of electroplated copper 34 provided from a cyanide bath, finally a lead-in coating 36 is electroplated upon the copper layer 34.
Patent GB-1289081-A (GB)
IPC: C04B35/532
Filed: 1970-01-02
Abstract: 1289081 Carbon-containing articles CHELYABINSKY ORDENA LENINA ELEKTROMETALLURGICHESKY KOMBINAT 2 Jan 1970 214/70 Heading C1A A carbon-containing article is prepared by mixing a carbon-containing charge with titanium or boron oxides or with mixtures thereof, aiding binders to the produced mix, baking, or baking and graphitizing and machining. The articles may be graphitized at a rate temperature rise of 50‹ to 100‹ C. per hour to a temperature of not higher than 2800‹ C. Titanium oxides may be employed in an amount of 0À1 to 3À0% by weight, boron oxides may be employed in an amount of 0À1 to 3À0% by weight and a mixture of titanium and boron oxides may be used in amount of 0À1 to 3À0% by weight. Coal pitch is used as a binder in the examples.
Patent GB-1289707-A (GB)
IPC: H03K3/282
Filed: 1969-12-22
Abstract: 1289707 Pulse generators R L SEIDLER 22 Dec 1969 62326/69 Heading H3T [Also in Division G4] A circuit for supplying intermittent pulses to a load, e.g. lamps 14 comprises a first transistor 21 with a bias arrangement 23, 24 for controlling the conduction of a second transistor 17 with a voltage divider load 15, 16 connected to the base of a third transistor 12 for rendering it conductive when transistor 17 becomes conductive and a series arrangement of a capacitor 18 and a resistor 20 connected between the collector of 12 and the base of 17. In operation, when switch 13 is closed, an operating bias is applied to 21 making it conductive and consequently transistors 17, 12 are also rendered conductive. A charging voltage applied from the collector of 12 to the capacitor 18 drives 17, 12 into saturation and after an " on " period determined by the time constant of 18, 20, transistors 17, 12 are cut off and transistor 21 remains on discharging capacitor 18 with an "off" period determinedby capacitor 18 and resistors 20, 22.
Patent GB-1295205-A (GB)
IPC: B29C48/90
Filed: 1971-07-19
Abstract: 1295205 Tubular films SHOWA DENKO KK 19 July 1971 [24 July 1970 8 Dec 1970] 33802/71 Heading B5B A process for the production of a tubular film of thermoplastic resin, comprising the steps of introducing a tubularly inflated film 2 of thermoplastic resin, extruded through the annular slit of a die 1 into an annular water cooling tank 6 having a central cooling channel lined with a pliable water-retentive element 10 and composed of a cooling zone 7, a sizing zone 8 and a draining zone 9, cooling the film to a temperature immediately above that at which crystallization would begin by means of the pliable element in the cooling zone, causing the film to be pressed against the inner wall of the cooling channel by means of inflation pressure and suction exerted in the sizing zone (as shown by means of suction orifices 12 formed on the inner wall of suction chamber 5), so as to confer tubular form on the film and allow the film to undergo crystallization, and removing remaining water adhering to the outer surface of the film in the draining zone. Specified film-forming materials include polyolefins, especially polyethylene and polypropylene. In the apparatus of Fig. 1, the suction chamber and the draining chamber are formed integrally and the combined suction and draining chamber communicates with a pipe 20 incorporating a vacuum pump so as to maintain the chamber in the state of a partial vacuum. Thus the cooling channel is composed of cooling zone 7, sizing zone 8 and draining zone 9 and these zones correspond to the inner walls respectively of the water-cooling chamber 4, suction orifices 12 and draining chamber 5. The inner wall of the cooling channel is fitted with a pliable water-retentive element 10. This may be made of felty material, non-woven fabric, tufty material, or spongy material, e.g. viscose sponge. The upper end of the cooling element is immersed into the water-cooling chamber 4 so that the entire cooling element can be sufficiently wetted with the cooling water. Water-feeding pipe 11 keeps the water at constant level. A suitable inflation pressure is maintained in the film by orifices 22, and as the film slides over the surface of the cooling element 10, it begins to undergo cooling by the cold water retained in said element 10. While passing this cooling zone, the film is still in an uncrystallized state. As the film begins to slide over sizing zone, 8, it is attracted toward the wall and held fast against element 10 because of the suction exerted through a plurality of suction orifices 12 formed on the inner wall of suction chamber 5. Thus the film is shaped, cooled and crystallized by the cold water. The apparatus of Fig. 3 incorporates a cooling mandrel.
Patent GB-1295211-A (GB)
IPC: B63B1/06
Filed: 1971-04-08
Abstract: 1295211 Hull form SASEBO HEAVY INDUSTRIES CO Ltd 8 April 1971 9071/71 Heading B7A In a ship hull the bilge of the bow portion and/or the stern portion has the same curvature as the bilge of the parallel hull portion 10, the hull being formed in the vertical direction by vertical surfaces and in the longitudinal direction by plane and/or primary curved surfaces. In embodiments such as that of Figs. 5A and 5B the hull also has a bulbous bow 16 which includes curvatures of radius R equal to that of the bilge in the parallel hull portion.
Patent GB-1295258-A (GB)
IPC: F16C33/20
Filed: 1969-12-01
Abstract: 1295258 Bearing material AMPEP INDUSTRIAL PRODUCTS Ltd 19 April 1971 [1 Dec 1969] 58640/69 Heading F2A [Also in Division D2] A bearing material is composed of a mat of randomly orientated fibres bound by a resin, the mat comprising fibres of low friction material and fibres of high modulus material. The bound resin may be secured to a backing, e.g. of resin impregnated glass fabric by the resin. The low friction fibres are preferably of PTFE and the high modulus fibres are of carbon fibres. The mat may be made by macerating and dispersing in water a mixture of P.T.F.E. yarns and carbon fibres. A water soluble low melting point synthetic resin is added to the aqueous suspension and the slurry deposited on to a metal grid by the application of a vacuum. Excess water is removed and the mat dried. The mat may be laminated to a phenol formaldehyde resin preimpregnated glass fabric and the laminate used to line a metal sleeve to form a bearing bush. The bush is deformed to the required shape and the resin cured to secure the laminate to the bush. The outer surface of the bush may then be machined to the shape of the bearing housing.