baber/WOPTO huggingface dataset:
Patent GB-857347-A (GB)
Title: A process for the production of the low-valency halides of silicon and the elements of the "a" sub-groups of the 4th, 5th and 6th groups of the periodic system and a process for the production of the pure elements therefrom
IPC: C01G1/06
Filed: 1958-03-31
Abstract: The lower halides of silicon and the Group IVa, Va, and VIa metals are prepared by reacting the higher halides in the vapour phase with an alkali metal vapour, for example sodium, in an amount insufficient to reduce the halides to the elements.  At least one of the reactants may be introduced into the reaction zone in a finely divided state and vaporized therein; it may be introduced in a directed stream.  An inert gas, for example argon, may be present.  More than one halide may be reduced at the same time.  The mixture of lower halide with alkali metal halide formed p  may be collected in the liquid state. One reactant may be fed through a conventional atomizing nozzle, and the other reactant through an annular nozzle surrounding the atomizing nozzle.  A concentric nozzle supplying an inert gas may be positioned between the two reactant supplying nozzles. Alternatively, a plurality of nozzles may be employed the separate streams mixing turbulently at the point of intersection.  The reaction may take place with the formation of a flame.  The lower halide may be converted to the pure element by electrolysis, disproportionation, or by reduction with an alkali metal vapour, as described and claimed in Specification 857,346.  Examples illustrate the reduction with sodium of titanium tetrachloride to form mixtures TiCl2.2NaCl and TiCl3.NaCl; of zirconium tetrachloride to form a mixture ZrCl2.2NaCl; of vanadium tetrachloride to form a mixture VCl2.2NaCl; of a mixture of titanium and vanadium tetrachlorides to form a mixture of titanium and vanadium dichlorides and sodium chloride; and of a mixture of zirconium and hafnium tetrachlorides to form a mixture of zirconium and hafnium dichloride and sodium chloride.  Another example relates to the reduction of tungsten hexachloride to form the mixture WCl5.NaCl, and also the formation of WCl4 and WCl2.  Specifications 765,718 and 795,386 also are referred to.
Patent GB-743864-A (GB)
Title: Improvements relating to liquid-immersed circuit breakers
Inventor: DAVIES DAVID REGINALD
IPC: H01H33/16
Filed: 1953-04-15
Abstract: 743,864. Oil -blast switches: METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. March 12, 1954 [April 15, 1953], No. 10313/53. Class 38(5) In a liquid-immersed circuit-breaker, a fixed contact assembly comprising an interrupting arid an isolating contact interconnected through a damping impedance is arranged to co-operate with a moving contact assembly comprising a pair of contacts which, on closure of the circuitbreaker engage respectively with the interrupting and isolating fixed contacts to establish two parallel circuits, one including the interrupting contact in engagement with the relevant moving contact and the other the isolating contact in series with the impedance-and the other moving contact; and arranged so that on opening the circuit-breaker, the interrupting contact is disengaged before the isolating contact. The circuit-breaker may contain two fixed contact assemblies, each comprising an interrupting contact 3 connected to a conductive mounting member 2 and a isolating contact 4 connected to member 2 through an impedance. An operating rod 7 positioned between the assemblies carries the moving contact assembly 8 which includes bridging conductors and an insulating board 11 which extends between contacts 3, 4 on each member 2. Arcing chambers 12<SP>1</SP>, 13<SP>1</SP> on opposite sides of board 11 each contain one of the bridging conductors. Vents are provided in the end walls of the chambers, arranged for cross-jet arc extraction, and the chambers are closed by base members 15 (Fig. 1, not shown) and 16, preferably of metal. One bridging conductor carries one or two hinged contacts 17 at each end, biased away from base 15 by spring 18 to abut against contacts 3 in the closed position. The other bridging conductor is provided with a recess 20 at each end which embrace contacts 4 in the closed position. The lengths of contacts 3, 4 and positions of fingers 17 and sockets 20 are arranged so that the time lag between disengagement of contacts 3, 17 and subsequent disengagement of contacts 4, 20 is greater than the arcing time.
Patent GB-1534421-A (GB)
Title: Fire detecting device
IPC: G01K3/14
Filed: 1976-03-15
Abstract: 1534421 Fire alarms PAJ MARSAULT 15 March 1976 [14 March 1975] 10318/76 Heading G4N A fire alarm consists of a temperature measuring circuit 8 including a sensor Th1 having its output connected directly to one input 2 of a differential amplifier OP and to the other input 3 of the amplifier via a delay circuit R2, C1, the output of amplifier OP being connected to the input of a threshold circuit 21, R4 whose output is connected to controlled trigger means T which is connected in circuit with signalling or alarm means L1. As shown, the sensor is a thermistor, the threshold circuit includes a Zener diode 21, the trigger means is a thyristor T, and the alarm means is a lamp L1. The lamp may be replaced by any known sound and/or visual alarm device. As shown, the output of the sensor is also directly connected to the threshold circuit via a diode D2, the diodes D1 and D2 forming a logic OR gate. Alternatively, two threshold circuits may be provided.
Patent GB-1139122-A (GB)
Title: A molten metal pouring nozzle
IPC: B22D41/60
Filed: 1967-03-06
Abstract: 1,139,122. Tundishes; ladles. N. F. TISDALE and R. A. TISDALE. 6 March, 1967 [11 March, 1966], No. 10387/67. Heading F4B. [Also in Divisions B3 and H5] A metal pouring nozzle 18 used in a tundish or ladle for the continuous casting of iron or steel, is provided with electric heating means. The zirconium oxide nozzle body 34 is provided with a conducting graphite, zirconium carbide, zirconium diboride or yttrium zirconia insert 28 having a 0À02 to 0À03 inch surface coating 32 of silicon carbide, tungsten carbide, zirconium oxide, zirconium carbide, boron carbide, yttrium boride or yttrium oxide. A helical induction coil 42 wound round the nozzle body 34 or situated in a well formed in the nozzle body maintains the insert 28 at over 2,900 F. and the surface coating 32 within 50 F. of the temperature of the molten metal stream to prevent any clogging of aperture 30. Coil 42 is connected in parallel with fixed condenser 48, and variable condensers 50-58 which compensate for changes in electrical properties with temperature.
Patent GB-1356370-A (GB)
Title: Methods and formulations for the treatment of obesity
IPC: A23L1/30
Filed: 1972-03-06
Abstract: 1356370 Dietetic compositions A N HOWARD 6 March 1973 [6 March 1972] 10439/72 Heading A2B A dietary formulation for the treatment of obesity in man comprises:-(a) all the minerals required by man, (b) proteinaceous material consisting of:-(i) a mixture of monomeric L- amino acids and/or (ii) natural proteins, and/or (iii) natural proteins reinforced with at least one monomeric L-amino acid; and (c) digestible carbohydrate, such that the smallest amount of the formulation containing at least the minimum daily requirements of each of the minerals required by man also contains:- (A) at least 15gm of the proteinaceous material which must include at least the minimum daily requirements of all the essential L-amino acids required by man, and (B) 15-75 gm of the digestible carbohydrate; the total caloric value of the said smallest amount of formulation being in the range 160-600 Kcals. The composition should additionally contain at least the minimum daily requirement of vitamins and sufficient fat, oil, or other source of essential fatty acids to supply the minimum fatty acid requirements.  The proteinaceous material may include egg albumen, or natural protein derived from milk. soya beans, peanuts, fish, or plasma, which may be reinforced with at least one monomeric amino acid to give the desired amino acid profile, or it may include a mixture of amino acids produced by hydrolysis of a protein by an acid or a proteolase with necessary adjustment of the amino acid profile. The formulation may additionally include bulking agents, for example cellulose, methyl cellulose, and acacia, tragacanth, guar, or xanthan gums. Also present may be emulsifiers and flavourings.
Patent GB-1319381-A (GB)
Title: Automatic fluid testing a-paratus
IPC: B01L99/00
Filed: 1971-04-21
Abstract: 1319381 Automatic analysis apparatus BECTON DICKINSON & CO 21 April 1971 [29 April 1970] 10528/71 Heading B1X [Also in Division F1] Apparatus for dispensing a measured quantity of a liquid into each of a series of containers comprises (Fig. 1) a turntable 10, receptacles 94 in pivotable carriers 30 positioned about its periphery, each receptacle being arranged to hold a container 38 with its axis substantially vertical, a pivotally mounted indicator flag 34 for association with each container, each flag 34 comprising a pair of angularly disposed arms one of which extends into the receptacle and is moved on insertion of a container to cause the other arm 87 (Fig. 2) to protrude, means including 26, 20 for rotating the turntable, a liquid dispensing mechanism including a nozzle 44 or 49 positioned immediately above the periphery of the turntable and arranged to dispense a measured quantity of liquid through the nozzle and into a container 38, means for detecting a raised arm 87 when the corresponding container is immediately below the nozzle, and means for actuating the dispensing mechanism whenever the detecting means detects a raised arm 87. The apparatus may be used for carrying out the Coombes test, when containers 38 each initially containing a measured amount of blood are inserted into the receptacles in carriers 30, a measured amount of wash-saline is introduced into each of the containers as it passes beneath nozzle 44, turntable 10 is centrifuged with carriers 30 in position C (Fig. 2) then again with carriers 30 tilted into position A when magnetic parts 32 on the receptacles are attracted to pole ring 33 actuated by coils 105, so that the supernatant liquid in the containers is thrown out into bowl 40, the wash cycle is repeated, then a measured amount of Coombes' serum is dispensed from a disposable cartridge 48 through nozzle 49 into each container 38, and the turntable is centrifuged to sediment any agglutinated material in the containers for inspection.
Patent GB-232980-A (GB)
Title: Electric discharge devices for converting electric power
IPC: H02M7/44
Filed: 1924-07-04
Abstract: 232,980. Hazeltine Research Corporation, (Assignees of Hazeltine, L. A.). July 5, 1923, [Convention date]. Drawings to Specification. Thermionic valve circuits. - Relates to a system of converting direct current into alternating current employing thermionic valves in which the electron stream is electrostatically controlled and magnetically guided. The Specification described briefly the method of obtaining alternating current of variable frequency for supplying induction motors described in Specification 218,675, [Class 38 (ii), Electric currents, Converting &c.], in which direct current is first converted into alternating current of moderately high frequency in one valve system and then into alternating current of variable frequency in another valve system.
Patent GB-415977-A (GB)
Title: Apparatus for concentrating fruit juices
IPC: B01D3/10
Filed: 1934-04-09
Abstract: <PICT:0415977/III/1> In an evaporator A for concentrating fruit juices in vacuo, which is heated by exhaust steam from an engine F operating a vacuum and condensation pump E, the valve I which admits exhaust steam to the tube chest B, is closed while the apparatus is being started, and the steam escapes to the atmosphere through a pipe K and an automatic outlet valve J.  The valve I is opened when liquid has been drawn into the evaporator, through the tube C.  Concentrated liquid is withdrawn by a pump D.
Patent GB-777834-A (GB)
Title: Improvements in ships having a light metal framework
IPC: B63B3/00
Filed: 1954-04-12
Abstract: 777,834. Hull construction. AMIOT, F. April 12, 1954 [April 17, 1953], No. 10777/54. Drawings to Specification. Class 113.  In a ship structure the metal elements are electrically insulated from each other to prevent the production of electric currents in the structure due to movement in the earth's magnetic field. The elements are insulated by insulating material between the elements and between the rivets and the elements. The rivets are insulated by a sheath of polyester resin reinforced by glass fibres. This sheath is protected, during riveting, by a steel sleeve, interposed between the sheath and rivet.
Patent GB-436390-A (GB)
Title: Manufacture of azo-dyestuffs
IPC: C09B29/08
Filed: 1934-04-10
Abstract: Unsulphonated azo dyes suitable for dyeing cellulose esters are made by coupling the diazo compound of an amine of the general formula <FORM:0436390/IV/1> in which x = H, NO2 or halogen, and y = H or halogen, with an amine of the formula <FORM:0436390/IV/2> in which the benzene nucleus may be further substituted and in which R = an alkyl or an oxyethyl group, R1 = a b  : g -dioxypropyl or a g -methoxy-b -oxypropyl group, in which latter case R may be hydrogen. In examples the following dyestuffs are described: (1) 4-nitro-1-aniline --> 3-chloro-1-(oxyethyl-b  : g -dioxypropyl) - aminobenzene (fiery yellowish red); (2) 2 - chloro - 4 - nitraniline --> 1 - methyl - 3 - (n - butyl - b  : g  - dioxypropyl) - aminobenzene (bluish wine-red); (3) 2 : 6 - dichlor - 4 - nitraniline --> oxyethyl - g  - methoxy - b  - oxypropylaminobenzene (yellow brown); (4) 2 : 4 - dinitroaniline --> 1 - methyl - 4 - methoxy - 3 - (n - butyl - b  : \su - dioxypropyl) - aminobenzene (violet) or 1 - methyl - 3 - (oxyethyl - b  : g  - dioxypropyl) - aminobenzene (ruby red); (5) 6-bromo - 2 : 4 - dinitroaniline --> 1 - methyl - 3 - (n - butyl - g  - methoxy - b  - oxypropyl) - aminobenzene (reddish blue) or 1-methyl-4-methoxy-3 - (oxyethyl - g  - methoxy - b  - oxypropyl) - aminobenzene or (6) 3-chloro-1-(g -methoxy-b -oxypropyl)-aminobenzene (red). Specifications 181,750, 251,155, and 274,823, [all in Class 2 (iii)], and 409,921, are referred to.
Patent GB-483110-A (GB)
Title: Improvements in or relating to electrostatic condensers
IPC: C23C14/04
Filed: 1937-04-16
Abstract: 483,110. Condensers. BOSCH AKT.- GES., R. April 16, 1937, No. 10840. Convention date, April 16, 1936. Drawings to Specification. [Class 37] In building up a condenser, parts of the dielectric which are weak are not covered by the metal armature. This may be effected by applying to the dielectric a foil apertured at the parts which will lie over the faulty places, which may be found out in a separate operation. Where the metal electrode is applied by means of direct deposition as by spraying or sputtering, the coating of faults may be prevented by suitably placed stencils or by first coating the weak places with fat or oil, any deposit on which can be wiped off subsequently, or with a substance, for example one which gives off a vapour, which will prevent the deposition. Preferably the whole of the underside of a strip of dielectric is coated with a depositionpreventing substance. This will penetrate through the weaker places and so automatically prevent these parts from being coated on depositing the metal on the top side.
Patent GB-468473-A (GB)
Title: Improvements in cigarette cases
IPC: A24F15/16
Filed: 1936-04-15
Abstract: 468,473. Cases for cigarettes. DUNCAN, J. L., (trading as DUNCAN'S). April 15, 1936, No. 10866. Addition to 349,203. [Class 18] In a cigarette case according to the parent Specification, the pivoted arms d carrying the covers e are provided with lugs i which move in grooves, &c. j in the outer casing so that, when the inner member b is slid upwards, the lugs engage the ends of the grooves and the arms are swung apart. A spring con. nected between the covers will prevent them rattling when fully opened, and the arms d may be tapered to wedge the covers together when the member b is slid downwards. According to the Provisional Specification, the covers may be closed by a spring.
Patent GB-748031-A (GB)
Title: Improvements in machines for spreading manure and other materials
IPC: A01C3/06
Filed: 1953-04-21
Abstract: 748,031. Manure distributers. BAMFORDS, Ltd., and PARKER, W. N. April 12, 1954 [April 21, 1953], No. 10868/53. Class 6 (1). In a machine for distributing manure of the type incorporating a conveyer 10 and a distributer 11 mounted for rotation about a transverse horizontal axis, a deflector 13 is provided to deflect material thrown from the distributer 11 to one or more shoots 25 which are detachable so that material can be distributed in an uncontrolled manner when desired. As shown, the deflector is attached to the machine frame by means of brackets 17 and by means of bolts to brackets 12. Two shoots 25 are provided and each shoot is provided with pegs 34 which engage in lugs 35 carried by the deflector and with clips 28 which are secured by clamping- screws 32 to the deflector. The shoots are provided with flexible spouts 37. A partition plate 38 is provided inside the deflector to ensure even distribution of the material to the two shoots and it may be replaced by a pivoted flap arranged to partially close or close one or other of the two shoots. The invention may be applied to a machine arranged to deliver material from the front thereof. Specification 618,727 is referred to.
Patent GB-660928-A (GB)
Title: Improvements relating to wire hook fasteners for conveyor belts
IPC: F16G3/04
Filed: 1949-04-25
Abstract: 660,928. Making belt-fasteners. FENNER & CO., Ltd., J. H., TEBB, B., and HAINSWORTH, S. B. April 11, 1950 [April 25, 1949; Jan. 18, 1950], Nos. 10955/49 and 1349/50. Class 83 (ii). [Also in Group XXXVI] In a method of making wire hook fasteners for conveyer belts, sharpened hooks of carbon steel are electroplated with cadmium or an alloy or mixture containing a substantial proportion of cadmium. The parts are first given an electrolytic cleaning at the cathode of a tank containing a warm alkaline detergent and again at the anode of a tank containing a cold alkaline solution or a hot acid solution. The parts are plated with a mixture of cadmium and zinc in a continuously agitated alkaline solution containing cyanides of cadmium and zinc with or without potassium cyanide which may be added for maintaining the density. The parts may further be given a final bright dip in diluted sulphuric acid. When the parts are to be plated with cadmium alone the zinc cyanide is omitted from the solution. Each cleaning &c. process is followed by a washing in hot or cold water and the parts may be carried in succession by a conveyer system through a series of tanks for cleaning, plating, washing, &c.
Patent GB-1504807-A (GB)
Title: Method of and salt baths for nitriding metals
IPC: C23C8/48
Filed: 1975-03-17
Abstract: 1504807 Nitriding in molten cyanate bath DAIMLER-BENZ AG 17 March 1975 [21 March 1974] 11045/75 Heading C7U The nitriding action of a molten alkali metal cyanate bath which may or may not contain alkali and/or alkaline earth metal chlorides is controlled by maintaining within a predetermined range the potential developed either across a solid oxygenion-conducting electrolyte having one face in contact with the bath, or between the workpiece and an additional electrode located in the bath. The P.D. may be maintained either by chemical additions to the bath, or by imposing an external voltage between the workpiece and the bath container.
Patent GB-400246-A (GB)
Title: Improvements relating to the control of the flow of current in electric circuits
IPC: H02J7/04
Filed: 1932-04-18
Abstract: 400,246. Supply systems. WATSON, T. F. E. and WESTINGHOUSE BRAKE & SAXBY SIGNAL CO., Ltd., 82, York Road, King's Cross, London. April 18, 1932, No. 11083. [Class 38 (iv).] Charging and discharging batteries ; substituting sources in service.-A dry surface contact rectifier reversely connected offers a high impedance to the charging and a low impedance to the discharging current. A D.C. supply circuit 1, 2 is connected to a load circuit 3, 4 and to a battery 9 which supplies the load circuit in the event of failure of the supply. A rectifier 7 shunted by a resistance 11 is connected in the battery circuit. The charging rate is adjusted by means of this resistance. In a modification the load circuit 3, 4 and battery 9 are fed from an A.C. circuit through a rectifier.
Patent GB-494159-A (GB)
Title: Improvements in and relating to dry sealing envelopes, bags and the like
IPC: B65D27/16
Filed: 1937-04-19
Abstract: 494,159. Envelopes &c. ; bags &c. PIRIE, APPLETON, & CO., Ltd., and HAAS, A. April 19, 1937, No. 11094. [Class 146 (ii)] [Also in Group XVII] In a self-adhesive envelope, bag, or the like, uncoated protective material, which is formed or provided upon one or each adhesive bearing part, is immovably disposed over and partially covers the associated adhesive surface, or projects outwardly of and permanently along one or each margin of that adhesive surface to leave the whole or the greater portion of that surface exposed, the protective material normally holding the adhesive surfaces spaced apart but permitting them to be brought into sealing connection by localized pressure applied in the regions of the adhesive areas left exposed by the protective material. As shown in Fig. 1, the back of an envelope is formed mainly by a folded bottom flap 4, this flap being provided with holes to reveal areas of adhesive on a strip 3 which is secured behind the flap 4. The adhesive 1 on the closure flap 2 can only make contact with that on the strip 3 by applying localized pressure on the flap 2 immediately over the holes in the flap 4. In a modification, the back flap carries the coating of adhesive, and a strip of material provided with holes therein is secured over the adhesive coating. As shown in Fig. 7, the upper edge of the back flap 4 is folded back and secured to the outer face of that flap to form a rib 9 which projects outwardly of the related coating 3 of adhesive, and a similar rib 8 is formed on the sealing flap 2. When the sealing flap is folded, the ribs keep the adhesive coatings apart until localized pressure is applied between the ribs. Ribs may be formed adjacent both sides of either adhesive coating, or one rib may be formed adjacent one coating and another adjacent the other coating by applying to the envelope separate strips of material or pieces of cord, or the ribs may be formed by embossing the envelope to provide upstanding portions adjacent the coatings of adhesive.
Patent GB-705752-A (GB)
Title: Scanning circuits for television apparatus
Inventor: BAKER GEOFFREY BERNARD
IPC: H03K4/28
Filed: 1951-05-11
Abstract: 705,752. Sawtooth generating circuits. MURPHY RADIO, Ltd. May 12, 1952 [May 11, 1951], No. 11180/51. Class 40 (6) In a scanning circuit for a cathode-ray tube in which the scanning coils are fed from a transformer from which is also derived a high tension supply voltage the junction of the two scanning coils is connected to a tapping on the transformer winding which is intermediate between the points to which the outer ends of the coils are connected and which normally has a similar potential to that of the junction point. The Figure shows a scanning circuit for energizing the line deflecting coils 4 of a television receiver from a driver valve 1 via autotransformer 3 and in which E.H.T. for the cathode-ray tube is derived from rectifier 15 and in which a damper diode 8 is provided. The outer extremities of the scanning coils 4 are connected to tappings 5 and 6 on transformer 3 and their junction point is connected by lead 16 to an intermediate tapping point which in the absence of self-oscillations is at the potential of the junction point of the coils thus the potential of all points of the coils 4 is firmly clamped by the diode 8 when it is conducting and the ill-effects of high frequency oscillations due to capacity unbalance in the coils is avoided.