baber/WOPTO huggingface dataset:
Patent GB-1267578-A (GB)
Title: Foam-producing apparatus for fire-fighting
Inventor: EVANS JOHN LAWRENCE
IPC: A62C5/00
Filed: 1969-10-28
Abstract: 1,267,578. Mixing flowing liquids in proportions. CHUBB FIRE SECURITY Ltd. 26 Oct., 1970 [28 Oct., 1969], No. 52822/69. Heading B1C. In a foam generating system for an airfield crash tender the pump 1 has a recirclation conduit 30, 32 from its output pipe 9 to its inlet pipe 2, in which is a venturi indicator 31 for foam compound from tank 33. Each hand foam generator 20 (as shown, there can be four) is supplied through a pipe having a flow sensor 21 of the orifice type producing a pressure drop, and downstream thereof is a feedback pipe as at 24, 27 to the induction inlet of the inductor 31, in which is a constant flow valve 28 and a pressure relief valve 29. So long as there is flow from the generator 20 pressure downstream of the orifice 21 is insufficient to open the valve 29, but if the valve 22 be closed, pressure in the feedback pipe rises, the valve 29 opens and liquid flows back to the inductor at a rate controlled by the valve 28 to replace that amount of foam compound which was formerly supplied to the generator 20, so that there is no increase in the proportion of compound in the liquid supplied to the other generators. A foam monitor 38 is supplied from an inductor 42 connected in a separate recirculation pipe circuit 39, 41, 44. In a modification, see Fig. 2 (not shown) the inductor is supplied through an adjustable foam compound/water blending valve (47), which enables the proportions to be adjusted. In an alternative modification (see Fig. 3, not shown) there is a bleed pipe (54) from the pump outlet pipe 9 to the inductor inlet and which is a main bleed valve (55) which is adjustable. The volume of liquid required to be fed back to the inductor from a shut-down generator will vary inversely with the opening of the valve (55), and the feed back pipes are therefore provided instead of the constant flow valves 28, with adjustable valves (56) which may be interconnected with the main bleed valve (55) to operate in a complementary sense thereto.
Patent GB-1212213-A (GB)
Title: Improvements in or relating to clock synchronising circuits
Inventor: MOORE JOHN RICHARD
IPC: H03K5/05
Filed: 1967-11-21
Abstract: 1,212,213. Automatic phase control. INTERNATIONAL COMPUTERS Ltd. 2 Dec., 1968 [21 Nov., 1967], No. 53020/67. Heading H3A. In a clock synchronizing system of the type in which the clock signal is derived from the output of a divider controlled by an error signal, the error detecting circuit produces an error signal whenever two successive data signal transitions occur within a single clock interval. Under normal conditions, successive data transitions occur alternately during mark and space conditions, and the circuit adds to, or inhibits, the pulses fed to the divider to restore this condition whenever one of three abnormal conditions are detected. These conditions are: (a) " clock advance," two successive transitions detected during clock " mark " intervals; (b) " clock retard," two successive transitions detected during clock space intervals; (c) 180 degrees out-of-phase, detection of a single clock cycle during which two transitions occur. Pulses from oscillator 1 are divided by counter 10 and fed to a monostable circuit 17 to provide strobe pulses at the required clock rate. The received data signal from 12 is applied to logic circuitry to produce a signal P, at the output of OR-gate 27, in which one pulse occurs for each transition in the data signal. The signal P and the output from the counter 10 are applied to the advance/retard detector comprising AND-gates 30, 31 and bi-stable 29. Under normal conditions alternate P pulses are switched to the S and U inputs of bi-stable 29. If a " clock advance " state occurs, two successive P pulses are fed to the S input of bi-stable 29 and the second one is fed via AND 33 to switch bi-stable 34 to its unset state. This closes gate 7 and inhibits one of the input pulses to counter 10. If a " clock retard " state occurs, two successive P pulses are fed to the U input of bistable 29 and the second one is fed via AND 35 and OR 9 to provide an extra input to counter 10. If the " 180 degrees-out-of-phase " condition occurs, two P pulses are applied to the S input of bi-stable 36 without it being reset by a strobe pulse. The second of these pulses is then fed via AND 37 and OR 8 to provide an extra input pulse to counter 10. These extra pulses continue until the " clock retard " state is reached, when correction occurs as before.
Patent GB-1114829-A (GB)
Title: Improvements relating to centralised traffic control
Inventor: WOODHOUSE JOSEPH
IPC: B61L7/08
Filed: 1965-12-15
Abstract: 1,114,829. Route-setting system. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 15 Dec., 1966 [15 Dec., 1965], No. 53254/65. Heading B7N. In a railway route setting system, the central office is connected to the signals, points &c., locations by means of frequency division multiplex equipment and controls these track elements directly and not via satellite interlocking stations as was previously the case. The interlocking apparatus is accommodated in the central office and the indication signals (condition of points, signals, track circuits &c.) are received in the central office and control signals are transmitted from the office by transmit and receive apparatus of the type described in Specification 855,149.
Patent GB-1338033-A (GB)
Title: Spray drying of material
IPC: B04C5/28
Filed: 1971-11-19
Abstract: 1338033 Spray drying; centrifugal separators BALLAS EGG PRODUCTS CORP 19 Nov 1971 [2 April 1971] 53784/71 Headings B1B and B2P Material such as egg white is spray-dried by forcing it under pressure from reservoir 38 through pipes 36 and nozzles 40 into hot air flowing through chamber 10; the heavier dried particulate material falls to the base of chamber 10 and is discharged by screw-auger 31; and the fine dried particulate material is carried by the air which is drawn by fan 48 into compartment 44 and chamber 11 where the fine particulate material is separated from the air as it flows through the passages formed by scrolls 57 which are closed at the top. Due to the configuration of the scrools, each provides a vortex which causes fine particulate material to move to the exterior of the vortex by centrifugal force as the air is moving around the scrolls and downwardly. When the air is discharged from the bottom of the scrolls, the ne particulate material is thrown out of suspension and falls down hopper 58 and tube 59, while the clean air in the centre of each vortex moves upwardly through tubular members 62 and is discharged through stack 63. Atmospheric air is supplied to chamber 10 by fan 12 which draws the air through roller-filter 13 and bag-type felt filters 15; the air passes through louvers in partitions 17 and 20 to heater 25, which may be a gas flame heater, where the air is heated to approximately 225F; the hot air then enters chamber 10 around the spray-nozzles 40. Chamber 10 is maintained under sub-atmospheric pressure by adjustment of fans 12 and 48. Chamber 10 has tapered side walls which may be vibrated to assist downward-sliding of particulate material to auger 31.
Patent GB-1513210-A (GB)
Title: Refractory material
IPC: F27B14/06
Filed: 1976-12-24
Abstract: 1513210 Silica-based refractory F V MERKER 24 Dec 1976 [31 Dec 1975] 54046/76 Heading C1J [Also in Division F4] A refractory material consists of a mixture of crushed and graded silica, e.g. quartz or quartzite, a sintering agent for the silica, and a carrier compound of Cr 2 O 3 , said mixture having a granulometry such that after tight packing its porosity will be less than 25% and that after sintering or calcination the quantity of Cr 2 O 3  present in the refractory will be between 4% and 8% of the total. The sintering agent may consist of B 2 O 3  or H 3 BO 3 . A small quantity of binding agent, e.g. phenolic resin, may also be used.
Patent GB-1219775-A (GB)
Title: An improved cone head
IPC: B23B31/06
Filed: 1968-11-15
Abstract: 1,219,775. Chucks and sockets. ERIKSBERGS MEK. VERKSTADS A.B. 15 Nov., 1968 [29 Nov., 1967], No. 54319/68. Heading B3B. The tapered cone end 3 of a tool comprises a bevelled top end 6 and a disc spring 10 held to the cone end by a bolt 9. The angle α of the bevelled top end 6 is greater than the angle # of the disc spring to allow the disc spring to be pressed down at its edge by a tubular member 13 to release the cone end 3 from a spindle socket 2. The tubular member 13 is retained on the bolt 9 by a spring ring 12 which allows relative axial movement. The disc spring improves the grip of the cone end 3 in the socket 2 to prevent a tool being pulled out.
Patent GB-1170957-A (GB)
Title: Fluid Control Valves.
Inventor: DOUGLASS WALTER
IPC: F16K7/08
Filed: 1966-12-06
Abstract: 1,170,957. Valves for controlling material discharge. MUCON ENG. CO. Ltd. 22 Jan., 1968 [6 Dec., 1966], No. 54513/66. Heading B8S. [Also in Division F2] A fluid control valve comprises a body 1, a cylindrical flexible sleeve 8 folded back upon itself and clamped to the body by at least one ring 7, and to a ring 13 which is rotatable in the body through an angle greater than 180 degrees, e.g. up to 210 degrees, and a flexible drive element, e.g. a roller chain 17, secured to the ring 13 at one position and extending at least part way around it, and then to the exterior of the body via a passageway 12a, so that in the open position the sleeve hangs freely, but in the closed position it is twisted to form a closing diaphragm. In Fig. 1, the chain 17 extends into a gearbox 20, having a worm drive from a handle (37), Fig. 3, not shown, to rotate a chain-wheel (26). The mechanism can be locked by a reciprocating bolt (58), Fig. 5, not shown, and has a rotary indicator (38). In Figs. 6 to 10, not shown, the chain 17 is driven by an electric motor (55), Fig. 7, through a slip clutch (65), and its travel is controlled by cam-actuated limit switches (67). In Figs. 11 and 12, not shown, the rotatable ring is driven by a cable (80) driven by a piston-and-cylinder (89) through a pulley system (85) to (98). The rotatable ring may also be driven by a remote control push-pull cable. The valve may have a passageway connecting its interior with a sub- or super-atmospheric pressure.
Patent GB-1105227-A (GB)
Title: A galvanic cell
IPC: H01M50/528
Filed: 1966-12-06
Abstract: 1,105,227. Accumulator electrodes. VARTA A.G. 6 Dec., 1966 [11 Dec., 1965], No. 54584/66. Heading H1B. The invention comprises a galvanic cell having a coiled electrode group comprising a spiral of interwound flat electrodes and separators, at least one of the electrodes having a series of lugs projecting axially from one edge and being bent inwardly through about 90 C. The electrodes may comprise Ni foil covered with sintered Ni in the pores of which the active material is embedded. The separators may be broader than the electrodes so that they project beyond them in the coil. Both electrodes may have lugs made of Ni projecting beyond the separators on opposite faces of the coil or the negative plate only may have lugs the positive plate having a continuous projecting border of Ni. The lugs may be arranged in radial lines and may overlap to provide a conductive layer on one end of the coil through which good contact may be made with the conductive case of the cell or its insulated conductive cover. Contact may be improved by fitting a spring between the coil and the case or cover pressing in an axial direction. The invention may be applied to an alkaline accumulator.
Patent GB-1476227-A (GB)
Title: Method of manufacturing a hollow rivet on a can lid
IPC: B21D51/38
Filed: 1974-12-18
Abstract: 1476227 Riveting; forming rivets on can lids; stamping KOMBINAT UMFORMTECHNIK ERFURT VEB 18 Dec 1974 [20 Dec 1973] 54605/74 Headings B3U B3A and B3Q A hollow rivet is formed, on a can lid by forming a frusto-conical bulge 7 in the can lid and forming the bulge 7 into a cylindrical hollow rivet using an apertured tear-open pull tab 11 which is to be attached to the rivet, as a drawing die. A bulge having a frusto-conical portion (2) (Fig. 1, not shown) and a thinner, radiused, central portion (6) is first formed using a punch and die set, whereupon the bulge is formed into a frusto-conical shape 7, Fig. 2, using a movable draining die 9. After placing a pull tab 11 over the bulge 7, the tab 11 is pressed downwards by a ram 13 causing a cylindrical hollow rivet (Fig. 4, not shown) to be formed. A rivet head is finally formed by a punch 14 to secure the tab 11 to the can lid (Fig. 5, not shown).
Patent GB-1124609-A (GB)
Title: Electrolytic finishing of stainless steel surfaces
IPC: C25F3/24
Filed: 1965-12-28
Abstract: The surface of stainless steel is electrolytically finished by making it an anode in an aqueous bath containing 0.5-100 moles sulphuric acid/kg water, and an additive comprising an organic acid or salt thereof other than gluconic acid, tannic acid or oxalic acid, e.g. malic acid, citric acid, succinic acid, acetic acid, sodium tartrate or sodium malate; sawdust; a sugar other than glucose, fructose, sucrose or maltose; a polyhyric alcohol other than glycerol, e.g. mannitol or ethylene glycol; an amine, e.g. butyl amine or 2-ethylhexylamine; picoline; nicotinic acid amide; or an amino acid, e.g. aspartic acid, glutamic acid or glycine, said additive causing solid, liquid or bubbles to adhere to the surface of the stainless steel during electrolysis and the electrolytic operating conditions and the concentration of the sulphuric acid and the additive being correlated to encourage irregular surface production by dissolution of the anode material. The additive may be present in an amount of 1-1500g/kg water. Phosphoric acid may also be present in the electrolyte. Electrolysis may take place at a temperature of 0-100 DEG C., a current density of 5-500 Amp/dm2 and for a time of 3-5 mins.
Patent GB-1403039-A (GB)
Title: Assembly for a fuel level gauge
IPC: G01F23/32
Filed: 1972-11-28
Abstract: 1403039 Liquid level indicators SOC INTERNATIONALE DE MECANIQUE INDUSTRIELLE SA 28 Nov 1972 [10 Dec 1971] 54972/72 Heading G1H [Also in Division F2] A fuel level gauge for a vehicle and comprising a float 7 coupled by a rod 6 to a transducer, e.g. an electric signal transmitter in casing T, is provided with an oscillation absorber to make the gauge insensitive to vehicle movement, the absorber comprising a cylindrical chamber 3 closed at one end, a piston 9 slidable in the chamber 3, and a connecting rod 4 made from a stiff but resilient plastic and which joins the piston 9 to the rod 6, the rod 4 having a C-shaped end 5 clipped to the rod 6 and, at its other end, a forked part having resilient projections 8a clipped into seats on a projection 9a of the piston 9. The chamber 3 is fixed in the fuel tank on a support plate 2, and is preferably also of plastics. The chamber 3 has a flange 11 and teeth 10 so that it is a sliding fit in a cut-out in the plate 2. The plate 2 may have resilient tongues (13), Figs. 4 and 6 (not shown), to retain the cylinder. The rod 4 and piston 9 are preferably moulded from polyacetal resin.
Patent GB-1059253-A (GB)
Title: Method of producing rolled products of magnesium-base alloys
Inventor: JNR GUY FRANKLIN BRACKETT
IPC: C22F1/06
Filed: 1965-12-29
Abstract: Magnesium-base alloys (at least 75% Mg) containing at least 0.4% Th are solution treated at 900-1050 DEG F., quenched to 550-725 DEG F., rolled at this temperature to effect a reduction of 20-50% and bring the metal to its final thickness and aged at 400-650 DEG F. for 1-4 hours.  After heating to 900-1050 DEG F. the alloy may be hot rolled and the resultant strip coiled; reheating to the solution treatment temperature may be necessary before quenching. Flattening of the product may be effected during ageing.
Patent GB-1123078-A (GB)
Title: Improvements in the manufacture of diammonium orthophosphate
IPC: C05B7/00
Filed: 1965-10-27
Abstract: Diammonium orthophosphate is prepared by reacting at a constant elevated temperature ammonium nitrate and dipotassium orthophosphate in an aqueous phase and in relative proportions to yield a solid phase consisting of substantially pure diammonium orthophosphate which is separated from the aqueous solution consisting essentially of water, diammonium orthophosphate and potassium nitrate.  The aqueous phase of ammonium nitrate and dipotassium orthophosphate is obtained by reacting ammonia with a mixture of solid and aqueous phases containing NH4+, K+, NO3-an PO43- ions, for example ammonium nitrate and monopotassium orthophosphate.  The reaction temperature is in the range 80 DEG  C. to 100 DEG  C.  On cooling the product aqueous solution phase to between 30 DEG  C. to 40 DEG  C. solid potassium nitrate separates out and can be recovered.
Patent GB-1412479-A (GB)
Title: Magenetic disc storage apparatus
IPC: G11B17/02
Filed: 1973-11-29
Abstract: 1412479 Magnetic-disc data-storage apparatus INTERNATIONAL BUSINESS MACHINES CORP 29 Nov 1973 [29 Dec 1972] 55359/73 Heading G5R An enclosure 10, Fig. 2, or 15, Fig. 3, for a magnetic-disc data-storage apparatus 1, 6, 7 has part of its periphery in the form of a curved wall 10a or 15a, 15b closely spaced from the periphery of the disc(s) and forming part of a cylinder coaxial therewith, the spacing between the wall and the disc periphery being small enough, e.g. less than 2À5 mm., substantially to prevent air movement on one side of a disc from causing turbulence in the air on the other side of the disc. The air flow may be further controlled by at least one spoiler 9, 13, 14 extending into the space between two discs.
Patent GB-1279666-A (GB)
Title: A resonator
Inventor: VINOGRADOV EVGENY ALEXANDROVIC
IPC: H01P1/20
Filed: 1969-11-12
Abstract: 1279666 Measuring frequency, refractive index ORDENA LENINA FIZICHESKY INSTITUT IMENI P N LEBEDEVA 12 Nov 1969 55401/69 Heading G1U [Also in Division H1] A resonator for waves in the millimetric and submillimetric bands comprises two main reflectors 1, 3 and an intermediate reflector 2. The latter is made of parallel conductors extending across a frame (e.g. a circular frame) in the direction of the electric vector of the incident radiation. The spacing between the parallel conductors is much smaller than a wavelength. The radiation is propagated between aerials 6, 7 and reflected radiation is reflected by a semi-transparent plate to an additional aerial 8. The three reflectors 1, 2, 3 form two resonators I, II having a series of common resonant frequencies and it is stated that the reflected part of the wave increases as the reflector 2 is adjusted to axial positions corresponding to common resources. All three reflectors 1, 2, 3 may comprise arrays of parallel conduction and the reflector 3 may be rotated about the direction of propagation to vary the amplitude of the reflected signal. Alternatively, the reflector 3 may consist of a mirror having a flat or spherical surface. The arrangement may be used as a filter or a measuring device e.g. for measuring refractive index. For the latter purpose, the reflectors 1, 2, 3 are arranged for coincidence of resonant frequency with and without the interposition of a test specimen in one of the resonators. The path difference due to the specimen is equal to the reflector displacement and from this may be reduced the refractive index.
Patent GB-1198307-A (GB)
Title: Process for the Production of Polymer Dispersions
IPC: C08F12/08
Filed: 1967-12-07
Abstract: 1,198,307. Polymerizing styrene in aqueous medium. CHEMISCHE WERKE HULS A.G. 7 Dec., 1967 [8 Dec., 1966], No. 55711/67. Heading C3P. Styrene with optionally butadiene and/or a substituted styrene, is polymerized in an aqueous medium, with optionally methanol, in the presence of a catalyst which is soluble in water or methanol and at least 0À5% by wt. of an emulsifier which is a homopolymer of 2- methyl-#<SP>2</SP>-oxazoline or a copolymer thereof with one other alkyl (e.g. 2-propyl)-#<SP>2</SP>-oxazoline and which contains more than 30% of methyl-#<SP>2</SP>- oxazoline units. The aqueous medium can also contain trisodium nitrilotriacetate or tetrasodium ethylenediamine tetra-acetate and tert.- dodecyl mercaptan. The catalyst may be potassium or ammonium persulphate. In a comparative example the emulsifier used was poly- 2-ethyl-#<SP>2</SP>-oxazoline.
Patent GB-1377027-A (GB)
Title: Reverse transcriptase inhibitor
IPC: C07H21/00
Filed: 1972-12-05
Abstract: 1377027 Nucleotide MILES LABORATORIES Inc 5 Dec 1972 [27 Dec 1971] 56100/72 Heading C2P [Also in Division C3] The invention comprises 2<SP>1</SP>-fluoro-2<SP>1</SP>-deoxyuridine 5<SP>1</SP>-diphosphate and its preparation from 2<SP>1</SP>-fluoro-2<SP>1</SP>-deoxyuridine by conversion with POCl 3  into the 5<SP>1</SP>-monophosphate which is converted by reaction with a primary or secondary amine in the presence of a carbodiimide into a 5<SP>1</SP>-phosphoramidate which is converted into the desired product by reaction with a mono-(trialkylammonium) orthophosphate. The aforesaid amine may be a dialkylamine, pyrrolidine, piperidine or morpholine.
Patent GB-1487918-A (GB)
Title: Container with lid
IPC: A47J41/00
Filed: 1974-11-15
Abstract: 1487918 Containers with lids INSULEX Ltd 15 Nov 1974 [4 Dec 1973] 56204/73 Heading A4A A vessel has a portion defining a first aperture 2 for the introduction of liquid into the vessel, a second aperture 7 whereby liquid may be removed from the vessel, and a closure 5 for the first aperture, wherein the portion defining the first aperture is in the form of the major segment of a circle, and the closure has an outer periphery of circular crosssection, such that when the closure is located in the first aperture that part of the first aperture-defining portion which defines the chord of the circle cooperates with a portion of the outer periphery of the closure so as to cause the centre of the closure to be displaced off-centre with respect to the circle whereby a vent 8 is formed between the closure and the first aperture-defining portion to enable air to enter the vessel via the first aperture when liquid is removed from the second aperture. The aperturedefining portion has a frusto-conical surface and a planar surface 4 inclined with respect to the vertical. The closure has an outer periphery constituted by the outer surface of a frusto-conical body, the taper corresponding to that of the frusto-conical component of the aperture-defining portion. The closure may be of a double-walled construction with the walls formed of a plastics material such as polypropylene or a styrene/acrylonitrile copolymer, and the inner space being filled with a heat insulating material e.g. a plastics foam material formed in situ, such as polyurethane. The vessel may have a handle 6 as may the closure 5 (handle 9).
Patent GB-1373626-A (GB)
Title: Electrical dividing circuits
IPC: G04G3/02
Filed: 1970-11-27
Abstract: 1373626 Logical multistable circuits SMITHS INDUSTRIES Ltd 19 Nov 1971 [27 Nov 1970] 56378/70 Heading H3T [Also in Division G4]  A frequency divider circuit for dividing by a factor N (where N is an odd integer greater than  unity) consists of N switching stages, each stage having two input terminals and an output terminal and being arranged so that the output is switched to a first predetermined voltage level wherenever the two inputs attain a second predetermined voltage level concurrently and the output is switched to the second voltage level whenever the two inputs attain the first voltage level concurrently, and each stage having one input connected to receive the output of one other stage and the other input connected to receive the input signal to the divider. Each stage comprises two P-type 10, 11 and two N-type 16, 17 metal oxide semiconductor field effect transistors arranged in a complementary circuit; the gates of transistors 11, 16 are connected to form one input and gates 10, 17 to form the other. All the transistors 10-21 are formed on a single semi-conductor chip.